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
The average high-temperature during September is a still moderately hot 75.7°F (24.3°C), almost matching the conditions of the preceding month. Cropsey's average low-temperature during September nights is observed to be a refreshing 57.2°F (14°C).Humidity
In Cropsey, the average relative humidity in September is 76%.Rainfall
In Cropsey, Illinois, in September, during 10.5 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Cropsey, during the entire year, the rain falls for 130.5 days and collects up to 17.44" (443mm) of precipitation.Snowfall
In Cropsey, Illinois, snow does not fall in May through September.Daylight
In Cropsey, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:21 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:50 am and sunset at 6:37 pm CDT.
Sunshine
The average sunshine in September is 8.9h.UV index
In Cropsey, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Heed the precautions - Suggestions to avoid sunburn are made. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Cropsey in September?
What is the average humidity in September in Cropsey?
How much does it rain in Cropsey in September?
When it does not snow in Cropsey?
Does it snow in Cropsey in September?
How many hours of daylight does Cropsey have in September?
When are sunrise and sunset in September in Cropsey?
How many hours of sunshine does Cropsey have in September?
What is the UV index reading in September in Cropsey?
Average temperature in September
Cropsey, IL
- Average high temperature in September: 75.7°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in September: 57.2°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 (18.5°F).
Average pressure in September
Cropsey, IL
- Average pressure in September: 30.03"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 September
Cropsey, IL
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in September
Cropsey, IL
- Average humidity in September: 76%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Cropsey, IL
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in September
Cropsey, IL
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and February (5 days).
Average snowfall in September
Cropsey, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Cropsey, IL
- Average snowfall days in September: 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 September /
Average sunshine in September
Cropsey, IL
- Average daylight in September: 12h and 2min
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 September: 8h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Cropsey, IL
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in September
Cropsey, IL
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Cropsey, IL
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in September
Cropsey, 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).
Cropsey, Illinois, USA
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