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
Transitioning into August, Harvel records an average high-temperature of a still moderately hot 82°F (27.8°C), almost identical to July's 83.5°F (28.6°C). An average low-temperature of 64.9°F (18.3°C) is recorded during the nights in August.Heat index
August's mean heat index is calculated to be a tropical 89.6°F (32°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite 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 Harvel, the average relative humidity in August is 81%.Rainfall
In Harvel, in August, it is raining for 14.2 days, with typically 2.68" (68mm) of accumulated precipitation. In Harvel, during the entire year, the rain falls for 145.5 days and collects up to 27.44" (697mm) of precipitation.Snowfall
May through October are months without snowfall in Harvel.Daylight
In August, the average length of the day in Harvel is 13h and 40min.On the first day of August, sunrise is at 5:58 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:30 pm CDT.
Sunshine
The average sunshine in August in Harvel is 9.9h.UV index
The months with the highest UV index in Harvel are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 6 during August translates into the following directions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Harvel in August?
What is the average humidity in August in Harvel?
How many days does it rain in August in Harvel?
When it does not snow in Harvel?
What is the average length of the day in August in Harvel?
What time are sunrise and sunset in August in Harvel?
How long on average sun shines in August in Harvel?
What is the month with the highest UV index in Harvel?
How high is the UV index in August in Harvel?
Average temperature in August
Harvel, IL
- Average high temperature in August: 82°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in August: 64.9°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in August
Harvel, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Harvel, IL
- Average wind speed in August: 6mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in August
Harvel, IL
- Average humidity in August: 81%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Harvel, IL
- Average rainfall in August: 2.68"
The wettest month (with the highest rainfall) is June (3.5").
The driest month (with the least rainfall) is February (1.5").
Average rainfall days in August
Harvel, IL
- Average rainfall days in August: 14.2 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (7.4 days).
Average snowfall in August
Harvel, IL
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Harvel, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.4 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
Harvel, IL
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in August: 9h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in August
Harvel, IL
- Average sunshine days in August: 12.8 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in August
Harvel, 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
Harvel, IL
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June, July and September (Cloud cover 29).
Average visibility in August
Harvel, IL
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Harvel, Illinois, USA
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