August weather forecastOhlman, IL
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Ohlman, Illinois, with an average temperature ranging between max 81.9°F (27.7°C) and min 64.9°F (18.3°C).Temperature
Ohlman experiences a transition to a still moderately hot 81.9°F (27.7°C) in average high-temperatures with the arrival of August, not greatly differing from July's 83.1°F (28.4°C). An average low-temperature of 64.9°F (18.3°C) is noted during the month of August.Heat index
For most parts of August, the heat index is appraised at a tropical 87.8°F (31°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.Understanding the heat index involves considering values for shaded locales with light wind. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
In August, the average relative humidity is 81%.Rainfall
In August, in Ohlman, the rain falls for 12.6 days. Throughout August, 1.61" (41mm) of precipitation is accumulated. Throughout the year, in Ohlman, there are 129.9 rainfall days, and 17.6" (447mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in August in Ohlman is 13h and 40min.On the first day of the month, sunrise is at 5:57 am and sunset at 8:08 pm. On the last day of August, in Ohlman, sunrise is at 6:25 am and sunset at 7:28 pm CDT.
Sunshine
In August, the average sunshine in Ohlman is 9.9h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Ohlman. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 6 during August leads to these instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full 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
Average temperature in August
Ohlman, IL
- Average high temperature in August: 81.9°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in August: 64.9°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 (22.1°F).
Average pressure in August
Ohlman, 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
Ohlman, IL
- Average wind speed in August: 6.2mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in August
Ohlman, IL
- Average humidity in August: 81%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in August
Ohlman, IL
- Average rainfall in August: 1.61"
The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are February and December (0.98").
Average rainfall days in August
Ohlman, IL
- Average rainfall days in August: 12.6 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in August
Ohlman, IL
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Ohlman, IL
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (6.3 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
Ohlman, IL
- Average daylight in August: 13h and 42min
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 54min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in August
Ohlman, IL
- Average sunshine days in August: 15.4 days
The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is May (13.1 days).
Average UV index in August
Ohlman, 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
Ohlman, IL
- Average cloud cover in August: 30
The months with the most cloud cover are January and February (Cloud cover 54).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility in August
Ohlman, 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).





