Climate and Average Weather Year Round at Blake Field United States

At Blake Field, the summers are hot, dry, and mostly clear and the winters are very cold, snowy, and partly cloudy. Over the course of the year, the temperature typically varies from 20°F to 95°F and is rarely below 7°F or above 102°F.

Based on the tourism score, the best time of year to visit Blake Field for warm-weather activities is from early June to mid September.

The hot season lasts for 3.5 months, from May 28 to September 14, with an average daily high temperature above 84°F. The hottest month of the year at Blake Field is July, with an average high of 95°F and low of 62°F.

The cold season lasts for 3.0 months, from November 20 to February 19, with an average daily high temperature below 52°F. The coldest month of the year at Blake Field is January, with an average low of 22°F and high of 43°F.

At Blake 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 Blake Field begins around May 26 and lasts for 5.2 months, ending around November 1.

The clearest month of the year at Blake Field is September, during which on average the sky is clear, mostly clear, or partly cloudy 77% of the time.

The cloudier part of the year begins around November 1 and lasts for 6.8 months, ending around May 26.

The cloudiest month of the year at Blake Field is February, during which on average the sky is overcast or mostly cloudy 46% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Blake Field varies throughout the year.

The wetter season lasts 10 months, from July 8 to May 15, with a greater than 15% chance of a given day being a wet day. The month with the most wet days at Blake Field is August, with an average of 6.2 days with at least 0.04 inches of precipitation.

The drier season lasts 1.8 months, from May 15 to July 8. The month with the fewest wet days at Blake Field is June, with an average of 2.8 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone at Blake Field is August, with an average of 6.2 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 22% on July 30.

Rainfall

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. Blake Field experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year at Blake Field. The month with the most rain at Blake Field is September, with an average rainfall of 1.3 inches.

The month with the least rain at Blake Field is June, with an average rainfall of 0.5 inches.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Blake Field experiences some seasonal variation in monthly snowfall.

The snowy period of the year lasts for 1.4 months, from December 8 to January 20, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow at Blake Field is December, with an average snowfall of 1.3 inches.

The snowless period of the year lasts for 11 months, from January 20 to December 8. The least snow falls around July 12, with an average total accumulation of 0.0 inches.

The length of the day at Blake Field varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 27 minutes of daylight; the longest day is June 20, with 14 hours, 53 minutes of daylight.

The earliest sunrise is at 5:46 AM on June 13, and the latest sunrise is 1 hour, 54 minutes later at 7:41 AM on November 2. The earliest sunset is at 4:50 PM on December 7, and the latest sunset is 3 hours, 51 minutes later at 8:41 PM on June 27.

Daylight saving time (DST) is observed at Blake Field during 2024, starting in the spring on March 10, lasting 7.8 months, and ending in the fall on November 3.

The figure below presents a compact representation of key lunar data for 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.

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 perceived humidity level at Blake Field, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.

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 Blake Field experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.5 months, from February 19 to July 4, with average wind speeds of more than 6.3 miles per hour. The windiest month of the year at Blake Field is April, with an average hourly wind speed of 7.3 miles per hour.

The calmer time of year lasts for 7.5 months, from July 4 to February 19. The calmest month of the year at Blake Field is August, with an average hourly wind speed of 5.4 miles per hour.

The predominant average hourly wind direction at Blake Field varies throughout the year.

The wind is most often from the west for 1.8 months, from March 23 to May 18 and for 2.7 months, from June 2 to August 23, with a peak percentage of 41% on June 22. The wind is most often from the south for 2.1 weeks, from May 18 to June 2 and for 7.0 months, from August 23 to March 23, with a peak percentage of 40% on May 28.

To characterize how pleasant the weather is at Blake 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 Blake Field for general outdoor tourist activities is from early June to mid 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 Blake Field for hot-weather activities is from late June to mid August, with a peak score in the second week of July.

Methodology

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.

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 Blake Field typically lasts for 5.8 months (178 days), from around April 21 to around October 15, rarely starting before April 3 or after May 10, and rarely ending before September 27 or after November 2.

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.

Based on growing degree days alone, the first spring blooms at Blake Field should appear around March 23, only rarely appearing before March 12 or after April 6.

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 experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 2.5 months, from May 10 to July 26, with an average daily incident shortwave energy per square meter above 7.2 kWh. The brightest month of the year at Blake Field is June, with an average of 8.3 kWh.

The darker period of the year lasts for 3.5 months, from November 1 to February 14, with an average daily incident shortwave energy per square meter below 3.7 kWh. The darkest month of the year at Blake Field is December, with an average of 2.6 kWh.