Average Weather at Decatur Municipal Airport Texas, United States
At Decatur Municipal Airport, the summers are hot and muggy, the winters are cold and windy, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 35°F to 95°F and is rarely below 22°F or above 101°F.
Based on the beach/pool score, the best time of year to visit Decatur Municipal Airport for hot-weather activities is from mid June to early September.
The hot season lasts for 3.3 months, from June 4 to September 15, with an average daily high temperature above 87°F. The hottest day of the year is July 27, with an average high of 95°F and low of 75°F.
The cool season lasts for 3.0 months, from November 24 to February 24, with an average daily high temperature below 63°F. The coldest day of the year is January 4, with an average low of 35°F and high of 55°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 Decatur Municipal Airport, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.
The clearer part of the year at Decatur Municipal Airport begins around May 27 and lasts for 5.5 months, ending around November 12. On October 5, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 74% of the time, and overcast or mostly cloudy 26% of the time.
The cloudier part of the year begins around November 12 and lasts for 6.5 months, ending around May 27. On February 24, the cloudiest day of the year, the sky is overcast or mostly cloudy 45% of the time, and clear, mostly clear, or partly cloudy 55% 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 Decatur Municipal Airport varies throughout the year.
The wetter season lasts 2.3 months, from April 16 to June 26, with a greater than 25% chance of a given day being a wet day. The chance of a wet day peaks at 38% on May 31.
The drier season lasts 9.7 months, from June 26 to April 16. The smallest chance of a wet day is 13% on January 2.
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 38% on May 31.
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. Decatur Municipal Airport experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year at Decatur Municipal Airport. The most rain falls during the 31 days centered around May 24, with an average total accumulation of 4.3 inches.
The least rain falls around January 15, with an average total accumulation of 1.3 inches.
Average Monthly Rainfall
The length of the day at Decatur Municipal Airport varies significantly over the course of the year. In 2018, the shortest day is December 21, with 9 hours, 57 minutes of daylight; the longest day is June 21, with 14 hours, 21 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:20 AM on June 12, and the latest sunrise is 1 hour, 30 minutes later at 7:50 AM on November 3. The earliest sunset is at 5:22 PM on December 4, and the latest sunset is 3 hours, 21 minutes later at 8:43 PM on June 29.
Daylight saving time (DST) is observed at Decatur Municipal 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
Decatur Municipal Airport experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 5.0 months, from May 5 to October 4, during which time the comfort level is muggy, oppressive, or miserable at least 15% of the time. The muggiest day of the year is July 3, with muggy conditions 61% of the time.
The least muggy day of the year is January 21, 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 Decatur Municipal Airport experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 4.8 months, from January 13 to June 6, with average wind speeds of more than 10.3 miles per hour. The windiest day of the year is April 2, with an average hourly wind speed of 12.1 miles per hour.
The calmer time of year lasts for 7.2 months, from June 6 to January 13. The calmest day of the year is August 23, with an average hourly wind speed of 8.4 miles per hour.
Average Wind Speed
The predominant average hourly wind direction at Decatur Municipal Airport varies throughout the year.
The wind is most often from the south for 11 months, from February 9 to December 25, with a peak percentage of 71% on July 14. The wind is most often from the north for 1.4 months, from December 25 to February 9, with a peak percentage of 37% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is at Decatur Municipal 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 times of year to visit Decatur Municipal Airport for general outdoor tourist activities are from late April to late June and from late August to mid October, with a peak score in the first week of October.
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 Decatur Municipal Airport for hot-weather activities is from mid June to early September, 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 Decatur Municipal Airport typically lasts for 8.3 months (253 days), from around March 13 to around November 21, rarely starting before February 11 or after April 5, and rarely ending before November 1 or after December 13.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms at Decatur Municipal Airport should appear around February 2, only rarely appearing before January 19 or after February 18.
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 4.3 months, from April 12 to August 22, with an average daily incident shortwave energy per square meter above 6.2 kWh. The brightest day of the year is July 4, with an average of 7.1 kWh.
The darker period of the year lasts for 2.9 months, from November 8 to February 5, with an average daily incident shortwave energy per square meter below 3.7 kWh. The darkest day of the year is December 22, with an average of 2.8 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Decatur Municipal Airport are 33.257 deg latitude, -97.582 deg longitude, and 968 ft elevation.
The topography within 2 miles of Decatur Municipal Airport contains only modest variations in elevation, with a maximum elevation change of 249 feet and an average elevation above sea level of 983 feet. Within 10 miles contains only modest variations in elevation (499 feet). Within 50 miles contains significant variations in elevation (1,106 feet).
The area within 2 miles of Decatur Municipal Airport is covered by grassland (77%) and shrubs (21%), within 10 miles by grassland (78%) and cropland (14%), and within 50 miles by grassland (64%) and cropland (13%).
This report illustrates the typical weather at Decatur Municipal 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
Decatur Municipal 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 include but are not limited to Bridgeport Municipal Airport, Fort Worth Alliance Airport, Denton Municipal Airport, Fort Worth Meacham International Airport, Naval Air Station Joint Reserve Base Fort Worth, Gainesville Municipal Airport, Dallas/Fort Worth International Airport, and Mineral Wells Airport.
Time zones for aiports and weather stations are provided by AskGeo.com .