Average Weather at Winner Regional Airport South Dakota, United States
At Winner Regional Airport, the summers are hot and mostly clear and the winters are freezing, dry, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 15°F to 90°F and is rarely below -4°F or above 101°F.
Based on the tourism score, the best time of year to visit Winner Regional Airport for warm-weather activities is from mid June to early September.
The hot season lasts for 3.2 months, from June 8 to September 15, with an average daily high temperature above 79°F. The hottest day of the year is July 19, with an average high of 90°F and low of 66°F.
The cold season lasts for 3.4 months, from November 22 to March 4, with an average daily high temperature below 45°F. The coldest day of the year is January 2, with an average low of 15°F and high of 34°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
At Winner Regional Airport, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year at Winner Regional Airport begins around June 7 and lasts for 4.2 months, ending around October 12. On July 27, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 76% of the time, and overcast or mostly cloudy 24% of the time.
The cloudier part of the year begins around October 12 and lasts for 7.8 months, ending around June 7. On March 15, the cloudiest day of the year, the sky is overcast or mostly cloudy 53% of the time, and clear, mostly clear, or partly cloudy 47% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Winner Regional Airport varies significantly throughout the year.
The wetter season lasts 4.7 months, from April 14 to September 5, with a greater than 20% chance of a given day being a wet day. The chance of a wet day peaks at 38% on June 6.
The drier season lasts 7.3 months, from September 5 to April 14. The smallest chance of a wet day is 3% on January 22.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation at Winner Regional Airport changes throughout the year.
Rain alone is the most common for 8.9 months, from February 23 to November 22. The highest chance of a day with rain alone is 38% on June 6.
Snow alone is the most common for 3.1 months, from November 22 to February 23. The highest chance of a day with snow alone is 4% on December 5.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Winner Regional Airport experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 7.9 months, from March 11 to November 8, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around June 8, with an average total accumulation of 3.3 inches.
The rainless period of the year lasts for 4.1 months, from November 8 to March 11. The least rain falls around January 24, with an average total accumulation of 0.1 inches.
Average Monthly Rainfall
The sliding 31-day liquid-equivalent quantity of snowfall at Winner Regional Airport does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout.
Average Liquid-Equivalent Monthly Snowfall
The length of the day at Winner Regional Airport varies significantly over the course of the year. In 2018, the shortest day is December 21, with 8 hours, 58 minutes of daylight; the longest day is June 21, with 15 hours, 25 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:58 AM on June 15, and the latest sunrise is 2 hours, 19 minutes later at 8:17 AM on November 3. The earliest sunset is at 5:03 PM on December 9, and the latest sunset is 4 hours, 21 minutes later at 9:24 PM on June 26.
Daylight saving time (DST) is observed at Winner Regional Airport during 2018, starting in the spring on March 11, lasting 7.8 months, and ending in the fall on November 4.
Sunrise & Sunset with Twilight and Daylight Saving Time
Winner Regional Airport experiences some seasonal variation in the perceived humidity.
The muggier period of the year lasts for 2.9 months, from June 10 to September 7, during which time the comfort level is muggy, oppressive, or miserable at least 5% of the time. The muggiest day of the year is July 22, with muggy conditions 21% of the time.
The least muggy day of the year is February 26, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
The average hourly wind speed at Winner Regional Airport experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 8.7 months, from September 12 to June 2, with average wind speeds of more than 11.0 miles per hour. The windiest day of the year is April 8, with an average hourly wind speed of 12.6 miles per hour.
The calmer time of year lasts for 3.3 months, from June 2 to September 12. The calmest day of the year is July 26, with an average hourly wind speed of 9.5 miles per hour.
Average Wind Speed
The predominant average hourly wind direction at Winner Regional Airport varies throughout the year.
The wind is most often from the north for 2.7 months, from February 14 to May 6 and for 1.9 weeks, from October 2 to October 15, with a peak percentage of 36% on April 13. The wind is most often from the south for 4.9 months, from May 6 to October 2, with a peak percentage of 46% on August 22. The wind is most often from the west for 4.0 months, from October 15 to February 14, with a peak percentage of 45% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is at Winner Regional Airport throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Winner Regional Airport for general outdoor tourist activities is from mid June to early September, with a peak score in the third week of August.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Winner Regional Airport for hot-weather activities is from early July to late August, with a peak score in the third week of July.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
The growing season at Winner Regional Airport typically lasts for 5.5 months (166 days), from around April 29 to around October 11, rarely starting before April 8 or after May 20, and rarely ending before September 22 or after October 31.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms at Winner Regional Airport should appear around April 7, only rarely appearing before March 24 or after April 26.
Growing Degree Days
The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.4 months, from May 5 to August 17, with an average daily incident shortwave energy per square meter above 6.3 kWh. The brightest day of the year is July 4, with an average of 7.4 kWh.
The darker period of the year lasts for 3.4 months, from October 31 to February 11, with an average daily incident shortwave energy per square meter below 2.9 kWh. The darkest day of the year is December 20, with an average of 1.8 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Winner Regional Airport are 43.389 deg latitude, -99.843 deg longitude, and 1,969 ft elevation.
The topography within 2 miles of Winner Regional Airport contains only modest variations in elevation, with a maximum elevation change of 249 feet and an average elevation above sea level of 1,974 feet. Within 10 miles contains only modest variations in elevation (673 feet). Within 50 miles contains significant variations in elevation (1,657 feet).
The area within 2 miles of Winner Regional Airport is covered by grassland (79%) and cropland (21%), within 10 miles by grassland (82%) and cropland (18%), and within 50 miles by grassland (83%) and cropland (14%).
This report illustrates the typical weather at Winner Regional Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
Winner Regional Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.
In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.
The stations on which we may fall back are Chamberlain, Chamberlain Municipal Airport; Ainsworth Municipal Airport; Miller Field; Pierre Municipal Airport; The O'Neill Municipal Airport; Mitchell Municipal Airport; Philip Municipal Airport; and Huron Regional Airport.
Time zones for aiports and weather stations are provided by AskGeo.com .