Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's onset brings a negligible change in high-temperatures, falling from a moderately hot 78.1°F (25.6°C) in August to a pleasant 72.5°F (22.5°C). September nights in Cherry Valley, Illinois, are marked by an average low-temperature of 54.1°F (12.3°C).Humidity
The average relative humidity in September in Cherry Valley is 80%.Rainfall
In Cherry Valley, during September, the rain falls for 7 days and regularly aggregates up to 0.55" (14mm) of precipitation. Throughout the year, in Cherry Valley, there are 92.1 rainfall days, and 6.77" (172mm) of precipitation is accumulated.Snowfall
In Cherry Valley, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 28min.On the first day of September in Cherry Valley, sunrise is at 6:21 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:38 pm CDT.
Sunshine
In Cherry Valley, Illinois, the average sunshine in September is 8.6h.UV index
In Cherry Valley, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What is the usual temperature for Cherry Valley in September?
What is the average humidity in September in Cherry Valley?
How much does it rain in Cherry Valley in September?
When it does not snow in Cherry Valley?
Does it snow in Cherry Valley in September?
How many hours of daylight does Cherry Valley have in September?
When is the sunrise / sunset in September in Cherry Valley?
How many hours of sunshine does Cherry Valley have in September?
How high is the UV index in September in Cherry Valley?
Average temperature in September
Cherry Valley, IL
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (26.2°F).
- Average low temperature in September: 54.1°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (14°F).
Average pressure in September
Cherry Valley, IL
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Cherry Valley, IL
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Cherry Valley, IL
- Average humidity in September: 80%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Cherry Valley, IL
- Average rainfall in September: 0.55"
The wettest month (with the highest rainfall) is May (0.91").
The driest months (with the least rainfall) are November and December (0.31").
Average rainfall days in September
Cherry Valley, IL
- Average rainfall days in September: 7 days
The month with the highest number of rainy days is May (12.3 days).
The month with the least rainy days is January (3 days).
Average snowfall in September
Cherry Valley, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Cherry Valley, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cherry Valley, IL
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Cherry Valley, IL
- Average sunshine days in September: 20.2 days
The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is July (14.1 days).
Average UV index in September
Cherry Valley, IL
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Cherry Valley, IL
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in September
Cherry Valley, IL
- Average visibility in September: 6mi
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).
Cherry Valley, Illinois, USA
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