August weather forecastSigel, IL
August
Weather in August
The last month of the summer, August, is another warm month in Sigel, Illinois, with an average temperature ranging between min 64°F (17.8°C) and max 81.7°F (27.6°C).Temperature
Sigel's average high-temperature in August sits at a still warm 81.7°F (27.6°C), showing little difference from the previous month. During August in Sigel, Illinois, the average low-temperature is recorded at an enjoyable 64°F (17.8°C).Heat index
August's heat index is evaluated at a hot 87.8°F (31°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.Remember that heat index calculations are made for conditions in the shade with light wind. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
The average relative humidity in August is 82%.Rainfall
In Sigel, in August, it is raining for 10.8 days, with typically 0.91" (23mm) of accumulated precipitation. Throughout the year, in Sigel, there are 111.4 rainfall days, and 10.31" (262mm) of precipitation is accumulated.Snowfall
In Sigel, snow does not fall in April through September.Daylight
In August, the average length of the day is 13h and 40min.On the first day of August, sunrise is at 5:54 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:25 pm CDT.
Sunshine
In August, the average sunshine in Sigel is 10h.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 vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In August, a daily UV index of 6 turns into the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Sigel, IL
- Average high temperature in August: 81.7°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in August: 64°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in August
Sigel, 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 (29.93"Hg).
Average wind speed in August
Sigel, 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
Sigel, IL
- Average humidity in August: 82%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Sigel, IL
- Average rainfall in August: 0.91"
The wettest month (with the highest rainfall) is April (1.3").
The driest months (with the least rainfall) are February, September and November (0.51").
Average rainfall days in August
Sigel, IL
- Average rainfall days in August: 10.8 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in August
Sigel, IL
- Average snowfall in August: 0"
The month with the highest snowfall is December (0.87").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in August
Sigel, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (5.3 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
Sigel, 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: 10h and 0min
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 12min).
Average sunshine days in August
Sigel, IL
- Average sunshine days in August: 15.9 days
The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is May (13.8 days).
Average UV index in August
Sigel, IL
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Sigel, IL
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in August
Sigel, 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).





