You can jump to a separate table for each region of the state: Eastern , Central and Western South Dakota. New York 28° 12° Miami Beach Coast Guard Station 70° 67° Boston 29° 13° Chicago 38° 33° Home. Montly weather forecast in Aberdeen on Yandex.Weather. The month with the longest days is June (Average daylight: 15.4h). Today’s and tonight’s Rapid City, SD weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com Weather in South Dakota. The average humidity in September is listed below for places in South Dakota. More about our weather records Sioux Falls Weather History for the Previous 24 Hours Show weather for: Previous 24 hours December 16, 2020 December 15, 2020 December 14, 2020 December 13, 2020 December 12, 2020 December 11, 2020 December 10, 2020 December 9, 2020 December 8, 2020 December 7, 2020 December 6, 2020 December 5, 2020 December 4, 2020 December 3, 2020 … South Dakota Interactive Map of Historical Record High and Low Temperatures The earliest sunrise of the month in Rapid City is 6:16 AM on September 1 and the latest sunrise is 33 minutes later at 6:50 AM on September 30. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. In September, in Keystone, South Dakota, the average high-temperature is 73.4°F (23°C), and the average low-temperature is 42.8°F (6°C). A climate graph showing rainfall, temperatures and normals. The averages from 1981 to 2010 are the latest available data; these numbers are updated every 10 years. The thin dotted line is the corresponding average liquid-equivalent snowfall. My husband and I are planning our first trip to South Dakota/Badlands/Mount Rushmore/Crazy Horse etc. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. Summer will be warmer than normal, with the hottest periods in early and late June, early and mid-July, and early to mid-August. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night. The month with shortest days is December (Average daylight: 9h). Today’s and tonight’s Rapid City, SD weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Daily low temperatures decrease by 11°F, from 56°F to 44°F, rarely falling below 34°F or exceeding 65°F. Weather in South Dakota. Average Weather during September in Pierre (South Dakota), United States of America. The coldest month (with the lowest average low temperature) is December (-9.4°C). To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day. Shortwave radiation includes visible light and ultraviolet radiation. July is the hottest month for South Dakota with an average high temperature of 85.2°, which ranks it as about average compared to other states. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon. Weather forecast in mobile app. Updated South Dakota weather maps. Slow moving, repeat thunderstorms produced widespread heavy rainfall across portions of southeast South Dakota into southwest Minnesota the evening of Wednesday, September 11th into the early morning hours of Thursday, September 12th. The weather is better from the previous month since in september it receives an average of 2.6in of precipitation over 6 days. September and October will have below-normal temperatures, with precipitation below normal in the north and above normal in the south. Get the monthly weather forecast for Rapid City, SD, including daily high/low, historical averages, to help you plan ahead. Weather in Aberdeen in September: air temperature, number of sunny days, precipitation, air pressure and humidity. Average Temperatures for South Dakota in October Average temperatures for October at cities, towns, parks and lakes throughout South Dakota are listed below in degrees Fahrenheit and Celsius. In this report, we use a base of 50°F and a cap of 86°F. The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than. Place. Months with the lowest snowfall are June, July and August (0mm). Showing: All Year January February March April May June July August September October November December Custer, South Dakota, USA - September weather averages including high and low temperatures, humidity, rainfall, snowfall, daylight, sunshine, UV index, and sea temperature. The shortest day of the month is September 30, with 11 hours, 44 minutes of daylight and the longest day is September 1, with 13 hours, 11 minutes of daylight. Weather History for Places in South Dakota . The amount of rain in September is … The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The month with the lowest average high temperature is December (2.1°C). The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day). According to data from the National Weather Service, Tuesday also marked the first time a South Dakota tornado has touched down in September in at least the past 20 years. The average low-temperature, in September, is 43.3°F (6.3°C). Weather is far too cold this time of year in South Dakota to be enjoyable for warm weather travelers. Weather forecasts for all towns and cities in South Dakota. The average growing degree days accumulated over the course of September, with 25th to 75th and 10th to 90th percentile bands. Weather.com brings you the most accurate monthly weather forecast for with average/record and high/low temperatures, precipitation and more. For reference, on July 26, the hottest day of the year, temperatures in Rapid City typically range from 62°F to 87°F, while on January 1, the coldest day of the year, they range from 17°F to 35°F. The September weather guide for Hot Springs, South Dakota shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. This line produced numerous reports of wind damage and heavy rainfall, as well as multiple tornadoes. Kuluncak, Turkey (6,215 miles away) is the far-away foreign place with temperatures most similar to Rapid City (view comparison). The month with most sunshine is July (Average sunshine: 11h). The weather … The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The average daily incident shortwave solar energy in Rapid City is decreasing during September, falling by 1.4 kWh, from 5.9 kWh to 4.4 kWh, over the course of the month. Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. Western South Dakota is warmer, but also windier with a brisk NW breeze. July is the hottest month for South Dakota with an average high temperature of 85.2°, which ranks it as about average compared to other states. On average, it rains or snows a smalll amount: 1 to 2 times per month. There are normally 8 hours of bright sunshine each day in Sioux Falls, South Dakota in September - that's 64% of daylight hours . north, 0.5" below south) The number of hours during which the Sun is visible (black line). We will be driving from Salt Lake City area. For reference, on June 20, the longest day of the year, the Sun rises at 5:09 AM and sets 15 hours, 30 minutes later, at 8:39 PM, while on December 21, the shortest day of the year, it rises at 7:25 AM and sets 8 hours, 53 minutes later, at 4:17 PM. Rainfall amounts across a large area ranged from 3 to 8 inches. This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. Hi. Monthly temperature, precipitation and hours of sunshine. Weather September flooding disaster declaration approved in South Dakota for flooding, tornadoes Written By: Forum News Service | Nov 18th 2019 - 2pm. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. How sunny is it in South Dakota in September? The average minimum temperature (usually the minimum temperature is noted during the night) in Pierre in September is 9.6°C (49.28°F). The first month of the autumn, September, is also an agreeable month in Custer, South Dakota, with average temperature varying between 43.3°F (6.3°C) and 70.2°F (21.2°C). Months with the lowest number of snowfall days are June, July and August (0 days). Calendar overview of Months Weather Forecast. The average sliding 31-day rainfall during September in Rapid City is essentially constant, remaining about 1.1 inches throughout, and rarely exceeding 2.9 inches or falling below 0.2 inches. Daylight saving time is observed in Rapid City during 2020, but it neither starts nor ends during September, so the entire month is in daylight saving time. support@__remove_this_part__weatherspark.com. Weather in September The first month of the autumn, September, is still a pleasant month in Deadwood, South Dakota, with temperature in the range of an average low of 42.1°F (5.6°C) and an average high of 70°F … The driest month (with the lowest rainfall) is January (8.4mm). Hello. The climate in Rapid City during May can be summarized as mild and reasonably dry. In that time frame, six weather incidents in which at least one tornado touched down in South Dakota have occurred in June, while four each have taken place in May and August and three were recorded in July. DENVER (NewsNation Now) — The calendar may read September, but people in the Denver area and western South Dakota are getting a blast of winter weather.On Wednesday, NewsNation Meteorologist Dave Fraser projects between 2″-5″ of snow are possible in the Denver area. These predictions are probabilities for the month of september from weather reports for over 10 years. Check temperature, rainfall & sunshine averages & more in September 2021 in Pierre, South Dakota - USA Access hourly, 10 day and 15 day forecasts along with up to the minute reports and videos from AccuWeather.com The most pleasant months of the year for South Dakota are June, September and August. Daily low temperatures decrease by 11°F , from 56°F to 44°F , rarely falling below 34°F or exceeding 65°F . While towns in South Dakota, North Dakota, Wyoming and Minnesota make the lists for some of the nation's coldest; not one from the Black Hills is included or close to. Current weather forecasts from the National Weather Service are available online or by phone at (605) 341-7531. Months with the highest number of snowfall days are February and March (5.7 days). Weather; Videos; Alerts 605; Radar; Maps; Satellites; Models; World °F. The September weather guide for Sioux Falls, South Dakota shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Average daily temperatures in September. Temperatures begin to cool around Labor Day, with highs averaging in the 60s and 70s during September and 50s and 60s in October. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. Date Weather Pre. The thin dotted lines are the corresponding average perceived temperatures. Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC. Low °F. In Keystone, in September, during 8 rainfall days, 1.3" (32mm)of precipitation is typically accumulated. In Rapid City, the chance of a wet day over the course of September is essentially constant, remaining around 15% throughout. By all measures, September 2019 was active. Free Long Range Weather Forecast for Rapid City, South Dakota September 2021. In South Dakota, there are 3 comfortable months with high temperatures in the range of 70-85°. The month with the lowest number of rainy days is January (3.4 days). We assume no responsibility for any decisions made on the basis of the content presented on this site. High °C. [2383677], Weather Atlas | © 2002-2020 | Yu Media Group d.o.o. The average accumulated growing degree days in Rapid City are increasing during September, increasing by 360°F, from 2,200°F to 2,560°F, over the course of the month. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. South Dakota Weather. South Dakota is famous for its cold winters and ample snow, so when we hear that we’re in for a long winter, you know we take notice! Showing: All Year January February March April May June July August September October November December All Year Climate & Weather Averages … The average high during this season is between 35.6°F (2°C) and 29.4°F (-1.4°C). Relative humidity measures the actual amount of moisture in the air as a percentage of the maximum amount of moisture the air can hold. South Dakota sd, Weather 30 Day. Weather Atlas: Custer, SD - September weather forecast and climate information. Relative humidity measures the actual amount of moisture in the air as a percentage of the maximum amount of moisture the air can hold. The tables give daily averages along with highest and lowest relative humidity levels. Weather ☀ ⛅ Deadwood ☀ ⛅ September ☀ ⛅ Information on temperature, sunshine hours, water temperature & rainfall in September for Deadwood. Weather data is prone to errors, outages, and other defects. December 2020 Long Range Weather Forecast for High Plains; Dates Weather Conditions; Dec 1-2: Sunny, mild: Dec 3-9: Snowy periods, very cold: Dec 10-17: Sunny, mild: Dec 18-23: Rain and snow showers, mild: Dec 24-31: Snowy periods, cold: December: temperature 29° (1° below avg.) Current road conditions are available by phone by dialing 511 or by visiting Safe Travel USA. All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . Year * Month * Day * Data is available up to December 3, 2020. The shaded overlays indicate night and civil twilight. The weather … Low °C. Average Weather in September in Custer South Dakota, United States. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on September. From the evening of Tuesday, September 10, 2019, into the early morning of Wednesday, September 11th, a line of severe thunderstorms moved across southeast South Dakota, northeast Nebraska, northwest Iowa and southwest Minnesota. The area within 2 miles of Rapid City is covered by artificial surfaces (59%) and grassland (35%), within 10 miles by grassland (67%) and trees (18%), and within 50 miles by grassland (61%) and trees (23%). How much does it rain in Keystone in September? Free Long Range Weather Forecast for Rapid City, South Dakota. We are planning to come the last week of September this year. The estimated value at Rapid City is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Rapid City and a given station. For reference, on July 18, the muggiest day of the year, there are muggy conditions 3% of the time, while on September 24, the least muggy day of the year, there are muggy conditions 0% of the time. Road Conditions. Lower dew points feel drier and higher dew points feel more humid. Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database . The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. One inch of snow also on Labor Day in Rapid City, South Dakota, bested the previous record earliest snow, there, by four days (Sept. 11, 2014). Months with the lowest UV index are January and December (UV index 1). The percentage indicates the probability of having the weather … If you visit the Black Hills in the fall, you'll see that saying goodbye to the sizzling summer months is actually a good thing. The month with the highest UV index is July (UV index 10). Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Custer area. Weather Rapid City, South Dakota, USA. Information about regional climates. Calendar overview of Months Weather Forecast. Torrential rainfall in parts of South Dakota flooded homes, washed out roads and canceled classes in at least 20 school districts on Friday. MERRA-2 Modern-Era Retrospective Analysis. 6 tornadoes were confirmed on September 9 th across Hamlin, Codington and Day Counties as a broken line of storms in the afternoon and then discrete cells in … Time zones for airports and weather stations are provided by AskGeo.com . Weather in September The first month of the autumn, September, is still a warm month in Spearfish, South Dakota, with temperature in the range of an average low of 48.7°F (9.3°C) … The most pleasant months of the year for South Dakota are June, September and August. Because our weather varies from one community to the next, the averages below are from Rapid City unless otherwise noted. For reference, on January 18, the windiest day of the year, the daily average wind speed is 10.2 miles per hour, while on July 29, the calmest day of the year, the daily average wind speed is 7.7 miles per hour. The most pleasant months of the year for South Dakota are June, September and August. Weather in Hamill at 15 September, detailed forecast for 15 September in Hamill from SINOPTIK.PL for South Dakota, USA This report illustrates the typical weather in Rapid City, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. 76. There are normally 9 hours of bright sunshine each day in Pierre in September - that's 69% of daylight hours. Within 10 miles contains significant variations in elevation (1,991 feet). In South Dakota, there are 3 comfortable months with high temperatures in the range of 70-85°. The month with the highest number of rainy days is May (13.4 days). We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. All the numbers here are averages for the years 1961 to 1990. South Dakota, the 17th largest state in the nation, covers so much area that it has several different geographic areas, each with its own weather pattern. Average Weather in September at Black Hills Airport South Dakota, United States. For reference, on March 26, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 52%, while on July 3, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 76%. The wettest month (with the highest rainfall) is May (90.9mm). Months with least sunshine are November and December (Average sunshine: 5). Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory. The solar day over the course of September. Within 50 miles contains large variations in elevation (5,135 feet). See Historical Weather Data for a Location and Date. Temperature In Custer, the average high-temperature in September slightly decreases, from a warm 78.8°F (26°C) in August, to an agreeable 70.2°F (21.2°C). The month of September in Rapid City experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 29% to 35%. There are usually 6 days with some rain in Pierre in September and the average monthly rainfall is 32mm . South Dakota, the 17th largest state in the nation, covers so much area that it has several different geographic areas, each with its own weather pattern. Does it rain in Pierre in September? Posted in South Dakota September 07, 2019 by Annie. The average humidity in September is listed below for places in South Dakota. The figure below presents a compact representation of key lunar data for September 2020. The latest sunset is 7:27 PM on September 1 and the earliest sunset is 53 minutes earlier at 6:34 PM on September 30. Low; Thu 12/17: Partly sunny: 39°F: 39°F: Fri 12/18: Cloudy: 41°F Tonight the winds will die down, and the sky will be mostly clear as the cloud deck finally moves east. The average hourly wind speed in Rapid City is increasing during September, increasing from 8.1 miles per hour to 9.1 miles per hour over the course of the month. The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands. For the purposes of this report, the geographical coordinates of Rapid City are 44.081 deg latitude, -103.231 deg longitude, and 3,238 ft elevation. There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Rapid City. The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 71% of the time. The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. The variety of trees in South Dakota become color-changing canvases in the autumn. | Resources, Large, scenic rocks and forests of trees around this tiny Sylvan Lake located in the tranquil Custer State Park in Custer City, South Dakota, In Custer, South Dakota, the average daily maximum UV index in. Weather in South Africa in september 2021. The Farmers Almanac Predicts Winter 2020 In South Dakota Will Have Frigid Temps And Above Average Amounts Of Snow. The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The percentage of time spent at various humidity comfort levels, categorized by dew point. Lows drop from the 30s and 40s to the 20s and 30s. Central South Dakota. From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night. The shaded overlays indicate night and civil twilight. The tables give daily averages along with highest and lowest relative humidity levels. Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. … According to data from the National Weather Service, Tuesday also marked the first time a South Dakota tornado has touched down in September in at least the past 20 years. The Old Farmer’s Almanac Long Range Weather Forecasts show deviations from normal temperatures and precipitation amounts, based on 30-year rolling averages gathered by government meteorological agencies, specifically NOAA and Environment Canada. ☂ Online precipitation map and other weather maps. Average Humidity. Weather Forecasts. The climate is rather fresh here this month, but it is endurable by dressing hot. Fall weather tends to be mild with an average daytime high of 57°F (14°C) and low of 44°F (7°C), although temperatures and precipitation can vary. The stations contributing to this reconstruction are: Ellsworth Air Force Base (51%, 13 kilometers, northeast); Rapid City Regional Airport (42%, 15 kilometers, east); Custer County Airfield (3.0%, 49 kilometers, southwest); and Black Hills Airport (4.5%, 63 kilometers, northwest). Rapid City weather forecast – free weather forecast for Rapid City ViaMichelin offers you the weather for Rapid City today and tomorrow, as well as a 10 day weather outlook. The wind direction in Rapid City during September is predominantly out of the south from September 1 to September 2, the north from September 2 to September 18, and the west from September 18 to September 30. Weather in Menno at 15 September, detailed forecast for 15 September in Menno from SINOPTIK.PL for South Dakota, USA Average Weather in September at Black Hills Airport South Dakota, United States. Get the monthly weather forecast for Mount Rushmore Ut, SD, including daily high/low, historical averages, to help you plan ahead. The growing season in Rapid City typically lasts for 5.0 months (153 days), from around May 4 to around October 4, rarely starting before April 14 or after May 22, and rarely ending before September 13 or after October 23. Western South Dakota is warmer, but also windier with a brisk NW breeze. Daily high temperatures decrease by 14°F, from 82°F to 68°F, rarely falling below 52°F or exceeding 93°F. South Dakota; South Dakota Weather. In South Dakota, there are 3 comfortable months with high temperatures in the range of 70-85°. Visitors make foliage pilgrimages to places like Spearfish Canyon and Sica Hollow State Park to take in the gorgeous transition. Average Weather in September in Sioux Falls South Dakota, United States. Rainfall will be near to below normal. Sunny, mild days and cool nights are typical during the autumn. The black line is the percentage chance that a given day is within the growing season. Pierre September weather guide. The chance that a given day will be muggy in Rapid City is essentially constant during September, remaining around 0% throughout. The percentage of time spent in various temperature bands. Annual Weather Averages in Sioux Falls Based on weather reports collected during 1985–2015. Over the course of September in Rapid City, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 27 minutes, implying an average daily decrease of 2 minutes, 59 seconds, and weekly decrease of 20 minutes, 56 seconds. Get the monthly weather forecast for Spearfish, SD, including daily high/low, historical averages, to help you plan ahead. Get the monthly weather forecast for Pierre, SD, including daily high/low, historical averages, to help you plan ahead. In october in North Dakota, the climate is quite dry (with 1.8in of rainfall over 6 days). The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. 48. The month with the highest average low temperature is July (12.3°C).