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 commencement of August brings an average high-temperature of a still warm 79.7°F (26.5°C), marking an inconsequential divergence from July. August witnesses an average nighttime temperature of 62.2°F (16.8°C) in Cullom, Illinois.Humidity
In August, the average relative humidity is 83%.Rainfall
In Cullom, during August, the rain falls for 12.8 days and regularly aggregates up to 1.22" (31mm) of precipitation. Throughout the year, in Cullom, there are 117.5 rainfall days, and 13.74" (349mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Cullom.Daylight
In August, the average length of the day is 13h and 45min.On the first day of the month, sunrise is at 5:50 am and sunset at 8:08 pm. On the last day of August, sunrise is at 6:19 am and sunset at 7:26 pm CDT.
Sunshine
The month with the most sunshine in Cullom, Illinois, is August, with an average of 9.8h of sunshine.UV index
The months with the highest UV index in Cullom are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 6 during August translates into the following directions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Cullom in August?
What is the average humidity in August in Cullom?
How much does it rain in Cullom in August?
When it does not snow in Cullom?
What is the average length of the day in August in Cullom?
When is the sunrise / sunset in August in Cullom?
What month has the most sunshine in Cullom?
How many hours of sunshine does Cullom have in August?
What are the months with the highest UV index in Cullom?
How high is the UV index in August in Cullom?
Average temperature in August
Cullom, IL
- Average high temperature in August: 79.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in August: 62.2°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 (18.3°F).
Average pressure in August
Cullom, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Cullom, IL
- Average wind speed in August: 6.2mph
The windiest months (with the highest average wind speed) are January and April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in August
Cullom, 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
Cullom, IL
- Average rainfall in August: 1.22"
The wettest month (with the highest rainfall) is May (2.09").
The driest months (with the least rainfall) are February and November (0.63").
Average rainfall days in August
Cullom, IL
- Average rainfall days in August: 12.8 days
The months with the highest number of rainy days are May and July (14.8 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in August
Cullom, IL
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Cullom, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.9 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
Cullom, IL
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 6min).
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 August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Cullom, IL
- Average sunshine days in August: 14.3 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in August
Cullom, 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 and December (UV index 1).
Average cloud cover in August
Cullom, IL
- Average cloud cover in August: 34
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 34).
Average visibility in August
Cullom, 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).
Cullom, Illinois, USA
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