May Weather at Butts Army Air Field United States

Daily high temperatures increase by 10°F, from 67°F to 76°F, rarely falling below 53°F or exceeding 87°F.

Daily low temperatures increase by 9°F, from 41°F to 50°F, rarely falling below 32°F or exceeding 57°F.

For reference, on July 8, the hottest day of the year, temperatures at Butts Army Air Field typically range from 59°F to 86°F, while on December 29, the coldest day of the year, they range from 20°F to 44°F.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on May. 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.

Ankara, Turkey (6,388 miles away) is the far-away foreign place with temperatures most similar to Butts Army Air Field (view comparison).

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The month of May at Butts Army Air Field experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 42% to 35%.

The clearest day of the month is May 31, with clear, mostly clear, or partly cloudy conditions 65% of the time.

For reference, on March 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 44%, while on September 28, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 77%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Butts Army Air Field, the chance of a wet day over the course of May is essentially constant, remaining around 21% throughout.

For reference, the year's highest daily chance of a wet day is 35% on August 9, and its lowest chance is 3% on January 10.

Over the course of May at Butts Army Air Field, the chance of a day with only rain increases from 17% to 21%, the chance of a day with mixed snow and rain decreases from 3% to 0%, and the chance of a day with only snow remains an essentially constant 0% throughout.

Rainfall

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.

The average sliding 31-day rainfall during May at Butts Army Air Field is essentially constant, remaining about 1.3 inches throughout, and rarely exceeding 3.0 inches or falling below 0.3 inches.

The highest average 31-day accumulation is 1.4 inches on May 15.

Over the course of May at Butts Army Air Field, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 50 minutes, implying an average daily increase of 1 minute, 41 seconds, and weekly increase of 11 minutes, 46 seconds.

The shortest day of the month is May 1, with 13 hours, 51 minutes of daylight and the longest day is May 31, with 14 hours, 41 minutes of daylight.

The latest sunrise of the month at Butts Army Air Field is 6:00 AM on May 1 and the earliest sunrise is 25 minutes earlier at 5:36 AM on May 31.

The earliest sunset is 7:51 PM on May 1 and the latest sunset is 26 minutes later at 8:17 PM on May 31.

Daylight saving time is observed at Butts Army Air Field during 2024, but it neither starts nor ends during May, so the entire month is in standard time.

For reference, on June 20, the longest day of the year, the Sun rises at 5:34 AM and sets 14 hours, 53 minutes later, at 8:27 PM, while on December 21, the shortest day of the year, it rises at 7:13 AM and sets 9 hours, 28 minutes later, at 4:41 PM.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

The figure below presents a compact representation of key lunar data for May 2024. 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. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. 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.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. 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 chance that a given day will be muggy at Butts Army Air Field is essentially constant during May, remaining around 0% throughout.

For reference, on July 16, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. 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.

The average hourly wind speed at Butts Army Air Field is gradually decreasing during May, decreasing from 9.2 miles per hour to 8.6 miles per hour over the course of the month.

For reference, on April 3, the windiest day of the year, the daily average wind speed is 10.1 miles per hour, while on August 13, the calmest day of the year, the daily average wind speed is 6.8 miles per hour.

The hourly average wind direction at Butts Army Air Field throughout May is predominantly from the west, with a peak proportion of 39% on May 2.

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 growing season at Butts Army Air Field typically lasts for 5.3 months (162 days), from around April 29 to around October 8, rarely starting before April 9 or after May 16, and rarely ending before September 19 or after October 26.

The month of May at Butts Army Air Field is more likely than not fully within the growing season, with the chance that a given day is in the growing season rapidly increasing from 56% to 100% over the course of the month.

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. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days at Butts Army Air Field are increasing during May, increasing by 278°F, from 251°F to 530°F, over the course of the month.

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. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy at Butts Army Air Field is gradually increasing during May, rising by 0.9 kWh, from 6.9 kWh to 7.8 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Butts Army Air Field are 38.685 deg latitude, -104.765 deg longitude, and 5,830 ft elevation.

The topography within 2 miles of Butts Army Air Field contains only modest variations in elevation, with a maximum elevation change of 453 feet and an average elevation above sea level of 5,765 feet. Within 10 miles contains only modest variations in elevation (5,098 feet). Within 50 miles also contains extreme variations in elevation (9,747 feet).

The area within 2 miles of Butts Army Air Field is covered by grassland (81%) and shrubs (19%), within 10 miles by grassland (43%) and shrubs (36%), and within 50 miles by grassland (44%) and shrubs (30%).