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
The shift to August signals an average high-temperature of a still warm 80.2°F (26.8°C), subtly varied from July's 81°F (27.2°C). Gridley observes an average low-temperature of 62.6°F (17°C) during August nights.Humidity
The average relative humidity in August is 83%.Rainfall
In Gridley, Illinois, in August, it is raining for 12.8 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, in Gridley, there are 131.6 rainfall days, and 18.86" (479mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Gridley.Daylight
The average length of the day in August is 13h and 45min.On the first day of the month, sunrise is at 5:52 am and sunset at 8:10 pm. On the last day of August, sunrise is at 6:22 am and sunset at 7:28 pm CDT.
Sunshine
In August, the average sunshine is 9.8h.UV index
The months with the highest UV index in Gridley 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 radiation for average individuals.Note: In August, the maximum UV index of 6 translates into these guidelines:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
What are August temperatures in Gridley?
What is the average humidity in August in Gridley?
How much does it rain in Gridley in August?
When it does not snow in Gridley?
What is the average length of the day in August in Gridley?
When is the sunrise / sunset in August in Gridley?
How many hours of sunshine does Gridley have in August?
When is the highest UV index in Gridley?
What is the UV index intensity in August in Gridley?
Average temperature in August
Gridley, IL
- Average high temperature in August: 80.2°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in August: 62.6°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in August
Gridley, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Gridley, IL
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in August
Gridley, IL
- Average humidity in August: 83%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Gridley, IL
- Average rainfall in August: 1.65"
The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in August
Gridley, IL
- Average rainfall days in August: 12.8 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in August
Gridley, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Gridley, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.6 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
Gridley, 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 18min).
- Average sunshine in August: 9h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Gridley, IL
- Average sunshine days in August: 15 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in August
Gridley, 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
Gridley, IL
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in August
Gridley, IL
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Gridley, Illinois, USA
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