Climate and Average Weather Year Round in Blackshear United States

In Blackshear, the summers are long, hot, and oppressive; the winters are short and cold; and it is wet and partly cloudy year round. Over the course of the year, the temperature typically varies from 42°F to 92°F and is rarely below 28°F or above 98°F.

Based on the tourism score, the best times of year to visit Blackshear for warm-weather activities are from early April to late May and from late September to early November.

The hot season lasts for 4.0 months, from May 18 to September 17, with an average daily high temperature above 86°F. The hottest month of the year in Blackshear is July, with an average high of 92°F and low of 73°F.

The cool season lasts for 2.9 months, from November 29 to February 25, with an average daily high temperature below 68°F. The coldest month of the year in Blackshear is January, with an average low of 42°F and high of 63°F.

In Blackshear, 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 in Blackshear begins around September 14 and lasts for 3.1 months, ending around December 18.

The clearest month of the year in Blackshear is October, during which on average the sky is clear, mostly clear, or partly cloudy 65% of the time.

The cloudier part of the year begins around December 18 and lasts for 8.9 months, ending around September 14.

The cloudiest month of the year in Blackshear is July, during which on average the sky is overcast or mostly cloudy 55% 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 in Blackshear varies significantly throughout the year.

The wetter season lasts 3.6 months, from May 28 to September 15, with a greater than 37% chance of a given day being a wet day. The month with the most wet days in Blackshear is July, with an average of 17.2 days with at least 0.04 inches of precipitation.

The drier season lasts 8.4 months, from September 15 to May 28. The month with the fewest wet days in Blackshear is November, with an average of 5.7 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 in Blackshear is July, with an average of 17.2 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 58% on July 25.

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. Blackshear experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Blackshear. The month with the most rain in Blackshear is August, with an average rainfall of 4.8 inches.

The month with the least rain in Blackshear is November, with an average rainfall of 2.2 inches.

The length of the day in Blackshear varies significantly over the course of the year. In 2024, the shortest day is December 21, with 10 hours, 7 minutes of daylight; the longest day is June 20, with 14 hours, 11 minutes of daylight.

The earliest sunrise is at 6:24 AM on June 11, and the latest sunrise is 1 hour, 22 minutes later at 7:45 AM on November 2. The earliest sunset is at 5:25 PM on December 2, and the latest sunset is 3 hours, 12 minutes later at 8:37 PM on June 29.

Daylight saving time (DST) is observed in Blackshear 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.

Blackshear experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 5.6 months, from May 3 to October 24, during which time the comfort level is muggy, oppressive, or miserable at least 26% of the time. The month with the most muggy days in Blackshear is August, with 30.3 days that are muggy or worse.

The month with the fewest muggy days in Blackshear is February, with 0.6 days that are muggy or worse.

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 in Blackshear experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 7.3 months, from October 6 to May 16, with average wind speeds of more than 5.4 miles per hour. The windiest month of the year in Blackshear is March, with an average hourly wind speed of 6.3 miles per hour.

The calmer time of year lasts for 4.7 months, from May 16 to October 6. The calmest month of the year in Blackshear is August, with an average hourly wind speed of 4.5 miles per hour.

The predominant average hourly wind direction in Blackshear varies throughout the year.

The wind is most often from the east for 2.4 months, from August 13 to October 25, with a peak percentage of 44% on September 6. The wind is most often from the north for 2.0 months, from October 25 to December 24, with a peak percentage of 34% on November 7. The wind is most often from the west for 7.6 months, from December 24 to August 13, with a peak percentage of 32% on January 1.

To characterize how pleasant the weather is in Blackshear 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 Blackshear for general outdoor tourist activities are from early April to late May and from late September to early November, with a peak score in the last week of April.

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best times of year to visit Blackshear for hot-weather activities are from early May to early July and from mid August to early October, with a peak score in the third week of September.

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 in Blackshear typically lasts for 9.2 months (280 days), from around February 22 to around November 28, rarely starting before January 29 or after March 18, and rarely ending before November 5 or after December 28.

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 in Blackshear should appear around January 18, only rarely appearing before January 11 or after January 30.

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 significant seasonal variation over the course of the year.

The brighter period of the year lasts for 2.9 months, from April 4 to July 1, with an average daily incident shortwave energy per square meter above 6.0 kWh. The brightest month of the year in Blackshear is May, with an average of 6.7 kWh.

The darker period of the year lasts for 2.8 months, from November 11 to February 4, with an average daily incident shortwave energy per square meter below 3.7 kWh. The darkest month of the year in Blackshear is December, with an average of 3.0 kWh.

For the purposes of this report, the geographical coordinates of Blackshear are 31.306 deg latitude, -82.242 deg longitude, and 108 ft elevation.

The topography within 2 miles of Blackshear is essentially flat, with a maximum elevation change of 75 feet and an average elevation above sea level of 107 feet. Within 10 miles is essentially flat (125 feet). Within 50 miles also contains only modest variations in elevation (328 feet).

The area within 2 miles of Blackshear is covered by trees (47%), cropland (25%), and artificial surfaces (24%), within 10 miles by trees (60%) and cropland (22%), and within 50 miles by trees (58%) and herbaceous vegetation (27%).