August weather forecastDecatur, TX
August
Weather in August
August, the last month of the summer in Decatur, is a fiery hot month, with an average temperature fluctuating between 95.2°F (35.1°C) and 74.8°F (23.8°C).Temperature
Temperature readings reach their annual highs in August, averaging 95.2°F (35.1°C) and a minimum average of 74.8°F (23.8°C).Heat index
Throughout August, the heat index is appraised at a scorching 109.4°F (43°C). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.Heat index specifics point out values are for conditions of shade and a slight breeze. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
August is the least humid month, with an average relative humidity of 56%.Rainfall
In Decatur, during August, the rain falls for 12.7 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, there are 131.9 rainfall days, and 28.31" (719mm) of precipitation is accumulated.Snowfall
In Decatur, snow does not fall in April through November.Daylight
The average length of the day in August is 13h and 20min.On the first day of August, sunrise is at 6:43 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 7:56 pm CDT.
Sunshine
In Decatur, the average sunshine in August is 10.9h.UV index
June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In August, a daily maximum UV index of 7 leads to the following instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Decatur, TX
- Average high temperature in August: 95.2°F
The warmest month (with the highest average high temperature) is August (95.2°F).
The month with the lowest average high temperature is January (54°F).
- Average low temperature in August: 74.8°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).
Average pressure in August
Decatur, TX
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in August
Decatur, TX
- Average wind speed in August: 7.2mph
The windiest months (with the highest average wind speed) are March and April (10.7mph).
The calmest month (with the lowest average wind speed) is September (7mph).
Average humidity in August
Decatur, TX
- Average humidity in August: 56%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (56%).
Average rainfall in August
Decatur, TX
- Average rainfall in August: 2.28"
The wettest month (with the highest rainfall) is October (3.62").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in August
Decatur, TX
- Average rainfall days in August: 12.7 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.7 days).
Average snowfall in August
Decatur, TX
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Decatur, TX
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Decatur, TX
- Average daylight in August: 13h and 18min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 10h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in August
Decatur, TX
- Average sunshine days in August: 16.6 days
The month with the most sunshine days is January (23.6 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in August
Decatur, TX
- Average UV index in August: 7
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in August
Decatur, TX
- Average cloud cover in August: 18
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in August
Decatur, TX
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
