Average Weather at Stuart Powell Field Kentucky, United States
At Stuart Powell Field, the summers are warm and humid, the winters are very cold and wet, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 27°F to 87°F and is rarely below 10°F or above 95°F.
Based on the tourism score, the best time of year to visit Stuart Powell Field for warm-weather activities is from early June to late September.
The hot season lasts for 3.8 months, from May 28 to September 21, with an average daily high temperature above 78°F. The hottest day of the year is July 21, with an average high of 87°F and low of 66°F.
The cold season lasts for 3.2 months, from November 27 to March 1, with an average daily high temperature below 51°F. The coldest day of the year is January 29, with an average low of 27°F and high of 42°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 Stuart Powell Field, 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 Stuart Powell Field begins around June 14 and lasts for 4.9 months, ending around November 9. On September 21, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 68% of the time, and overcast or mostly cloudy 32% of the time.
The cloudier part of the year begins around November 9 and lasts for 7.1 months, ending around June 14. On January 2, the cloudiest day of the year, the sky is overcast or mostly cloudy 59% of the time, and clear, mostly clear, or partly cloudy 41% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Stuart Powell Field varies throughout the year.
The wetter season lasts 4.7 months, from March 30 to August 20, with a greater than 33% chance of a given day being a wet day. The chance of a wet day peaks at 42% on July 8.
The drier season lasts 7.3 months, from August 20 to March 30. The smallest chance of a wet day is 24% on November 9.
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 throughout the year is rain alone, with a peak probability of 42% on July 8.
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. Stuart Powell Field experiences some seasonal variation in monthly rainfall.
Rain falls throughout the year at Stuart Powell Field. The most rain falls during the 31 days centered around May 7, with an average total accumulation of 4.4 inches.
The least rain falls around January 17, with an average total accumulation of 2.7 inches.
Average Monthly Rainfall
We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.
As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Stuart Powell Field experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 3.9 months, from November 26 to March 23, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around January 30, with an average total liquid-equivalent accumulation of 0.4 inches.
The snowless period of the year lasts for 8.1 months, from March 23 to November 26. The least snow falls around July 19, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day at Stuart Powell Field varies significantly over the course of the year. In 2018, the shortest day is December 21, with 9 hours, 34 minutes of daylight; the longest day is June 21, with 14 hours, 46 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:17 AM on June 13, and the latest sunrise is 1 hour, 49 minutes later at 8:06 AM on November 3. The earliest sunset is at 5:20 PM on December 6, and the latest sunset is 3 hours, 44 minutes later at 9:04 PM on June 28.
Daylight saving time (DST) is observed at Stuart Powell Field 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
Stuart Powell Field experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 4.0 months, from May 24 to September 23, during which time the comfort level is muggy, oppressive, or miserable at least 16% of the time. The muggiest day of the year is July 24, with muggy conditions 65% of the time.
The least muggy day of the year is January 30, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed at Stuart Powell Field experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 6.5 months, from October 27 to May 11, with average wind speeds of more than 6.3 miles per hour. The windiest day of the year is February 25, with an average hourly wind speed of 8.1 miles per hour.
The calmer time of year lasts for 5.5 months, from May 11 to October 27. The calmest day of the year is August 1, with an average hourly wind speed of 4.6 miles per hour.
Average Wind Speed
The predominant average hourly wind direction at Stuart Powell Field varies throughout the year.
The wind is most often from the south for 3.0 months, from March 14 to June 15 and for 4.2 months, from August 18 to December 23, with a peak percentage of 40% on November 23. The wind is most often from the west for 2.1 months, from June 15 to August 18 and for 2.7 months, from December 23 to March 14, with a peak percentage of 40% on July 13.
Best Time of Year to Visit
To characterize how pleasant the weather is at Stuart Powell Field 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 Stuart Powell Field for general outdoor tourist activities is from early June to late September, with a peak score in the last 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 Stuart Powell Field for hot-weather activities is from late June to early September, with a peak score in the last 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 Stuart Powell Field typically lasts for 6.3 months (191 days), from around April 15 to around October 23, rarely starting before March 28 or after May 8, and rarely ending before October 4 or after November 11.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms at Stuart Powell Field should appear around March 13, only rarely appearing before February 25 or after April 1.
Growing Degree Days
The average daily incident shortwave solar energy experiences significant seasonal variation over the course of the year.
The brighter period of the year lasts for 4.4 months, from April 23 to September 4, with an average daily incident shortwave energy per square meter above 5.7 kWh. The brightest day of the year is June 23, with an average of 6.6 kWh.
The darker period of the year lasts for 3.0 months, from November 9 to February 9, with an average daily incident shortwave energy per square meter below 2.9 kWh. The darkest day of the year is December 25, with an average of 2.0 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Stuart Powell Field are 37.578 deg latitude, -84.770 deg longitude, and 994 ft elevation.
The topography within 2 miles of Stuart Powell Field contains only modest variations in elevation, with a maximum elevation change of 171 feet and an average elevation above sea level of 993 feet. Within 10 miles contains only modest variations in elevation (709 feet). Within 50 miles contains significant variations in elevation (1,319 feet).
The area within 2 miles of Stuart Powell Field is covered by cropland (97%), within 10 miles by cropland (77%) and trees (20%), and within 50 miles by cropland (56%) and trees (40%).
This report illustrates the typical weather at Stuart Powell Field, 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
Stuart Powell Field 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 include but are not limited to Madison Airport, Blue Grass Airport, Lake Cumberland Regional Airport, Capital City Airport, Wayne County Airport, London-Corbin Airport, Bowman Field, and Standiford Field.
Time zones for aiports and weather stations are provided by AskGeo.com .