Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August, with an average high of 94.8°F (34.9°C) and a low of 75.2°F (24°C), signifies the warmest month of the year.Heat index
The heat index in August is appraised at a blisteringly hot 111.2°F (44°C). Heed: Expect heat cramps and heat exhaustion. Continued action may cause heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
The least humid month is August, with an average relative humidity of 59%.Rainfall
In McKinney, during August, the rain falls for 12.8 days and regularly aggregates up to 2.64" (67mm) of precipitation. In McKinney, during the entire year, the rain falls for 144.7 days and collects up to 33.54" (852mm) of precipitation.Snowfall
March through October are months without snowfall in McKinney, Texas.Daylight
The average length of the day in August is 13h and 20min.On the first day of August, sunrise is at 6:40 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 7:52 pm CDT.
Sunshine
With an average of 11.1h of sunshine, August has the most sunshine of the year in McKinney.UV index
The months with the highest UV index in McKinney are June through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 7 during August leads to these advisories:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
What are the warmest months in McKinney?
How hot is it in McKinney in August?
What is the least humid month in McKinney?
What is the average humidity in August in McKinney?
How much does it rain in McKinney in August?
When it does not snow in McKinney?
What is the average length of the day in August in McKinney?
When are sunrise and sunset in August in McKinney?
What month has the most sunshine in McKinney?
How many hours of sunshine does McKinney have in August?
When is the highest UV index in McKinney?
What is the UV index reading in August in McKinney?
Average temperature in August
McKinney, TX
- Average high temperature in August: 94.8°F
The warmest month (with the highest average high temperature) is August (94.8°F).
The month with the lowest average high temperature is January (53.2°F).
- Average low temperature in August: 75.2°F
The month with the highest average low temperature is August (75.2°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).
Average pressure in August
McKinney, TX
- Average pressure in August: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
McKinney, TX
- Average wind speed in August: 6.9mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity in August
McKinney, TX
- Average humidity in August: 59%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (59%).
Average rainfall in August
McKinney, TX
- Average rainfall in August: 2.64"
The wettest month (with the highest rainfall) is October (4.17").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days in August
McKinney, TX
- Average rainfall days in August: 12.8 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in August
McKinney, TX
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in August
McKinney, TX
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.3 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
McKinney, TX
- Average daylight in August: 13h and 2min
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: 11h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in August
McKinney, TX
- Average sunshine days in August: 15.8 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is September (13.6 days).
Average UV index in August
McKinney, 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, November and December (UV index 3).
Average cloud cover in August
McKinney, TX
- Average cloud cover in August: 20
The months with the most cloud cover are February and March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in August
McKinney, 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).
McKinney, Texas, USA
Weather forecast for your location
2. Allow the app to use your location
