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
A minor adjustment in Huntsville's average high-temperature is noted with the start of August, touching a still moderately hot 82.9°F (28.3°C) from July's 83.7°F (28.7°C). An average nighttime temperature of 64.4°F (18°C) is recorded during August.Heat index
August's average heat index is computed to be a tropical 91.4°F (33°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.Be aware that heat index ratings are designed for shaded locations and minor breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
In Huntsville, the average relative humidity in August is 79%.Rainfall
In Huntsville, in August, it is raining for 12.2 days, with typically 1.89" (48mm) of accumulated precipitation. In Huntsville, Illinois, during the entire year, the rain falls for 132 days and collects up to 22.17" (563mm) of precipitation.Snowfall
In Huntsville, snow does not fall in May through October.Daylight
The average length of the day in August is 13h and 43min.On the first day of the month, sunrise is at 6:02 am and sunset at 8:17 pm. On the last day of August, sunrise is at 6:30 am and sunset at 7:36 pm CDT.
Sunshine
The average sunshine in August is 9.9h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 6 in August translates into these instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
How hot does it get in Huntsville in August?
What is the average humidity in August in Huntsville?
How many days does it rain in August in Huntsville?
When it does not snow in Huntsville?
How many hours of daylight does Huntsville have in August?
What time are sunrise and sunset in August in Huntsville?
How many hours of sunshine does Huntsville have in August?
When is the highest UV index in Huntsville?
What is the UV index intensity in August in Huntsville?
Average temperature in August
Huntsville, IL
- Average high temperature in August: 82.9°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.7°F).
- Average low temperature in August: 64.4°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in August
Huntsville, IL
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Huntsville, IL
- Average wind speed in August: 6.4mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity in August
Huntsville, IL
- Average humidity in August: 79%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Huntsville, IL
- Average rainfall in August: 1.89"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in August
Huntsville, IL
- Average rainfall days in August: 12.2 days
The month with the highest number of rainy days is May (16.9 days).
The months with the least rainy days are January and February (5.3 days).
Average snowfall in August
Huntsville, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Huntsville, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Huntsville, IL
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 9h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in August
Huntsville, IL
- Average sunshine days in August: 16.3 days
The month with the most sunshine days is January (20 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in August
Huntsville, IL
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Huntsville, IL
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 30).
Average visibility in August
Huntsville, IL
- 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).
Huntsville, Illinois, USA
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