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
Frederick registers an average high-temperature of a still moderately hot 83.1°F (28.4°C) at the commencement of August, closely related to the preceding month. An average temperature of 64.4°F (18°C) marks the nights in Frederick in August.Heat index
For August, the heat index is computed to be a tropical 91.4°F (33°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
The average relative humidity in August is 79%.Rainfall
In Frederick, during August, the rain falls for 12.7 days and regularly aggregates up to 2.05" (52mm) of precipitation. Throughout the year, in Frederick, there are 142.2 rainfall days, and 27.95" (710mm) of precipitation is accumulated.Snowfall
In Frederick, snow does not fall in May through September.Daylight
In Frederick, Illinois, the average length of the day in August is 13h and 43min.On the first day of August, sunrise is at 6:00 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:34 pm CDT.
Sunshine
In August, the average sunshine is 9.9h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In August, an average UV index of 6 transforms into the following instructions:
Deter overexposure. Protecting against the sun's effects is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Frederick in August?
What is the average humidity in August in Frederick?
How many days does it rain in August in Frederick?
When it does not snow in Frederick?
How many hours of daylight does Frederick have in August?
What time are sunrise and sunset in August in Frederick?
How long on average sun shines in August in Frederick?
What are the months with the highest UV index in Frederick?
What is the UV index reading in August in Frederick?
Average temperature in August
Frederick, IL
- Average high temperature in August: 83.1°F
The warmest month (with the highest average high temperature) is July (83.3°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 (20.5°F).
Average pressure in August
Frederick, 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
Frederick, IL
- Average wind speed in August: 6.3mph
The windiest months (with the highest average wind speed) are January, February and April (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in August
Frederick, 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
Frederick, IL
- Average rainfall in August: 2.05"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is December (1.61").
Average rainfall days in August
Frederick, IL
- Average rainfall days in August: 12.7 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in August
Frederick, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Frederick, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.1 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
Frederick, 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 12min).
Average sunshine days in August
Frederick, IL
- Average sunshine days in August: 16.7 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in August
Frederick, 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
Frederick, 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
Frederick, 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).
Frederick, Illinois, USA
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