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 reports an average high-temperature of a still warm 75.7°F (24.3°C), slightly varied from August's 80.2°F (26.8°C). During the month of September, an average temperature of 56.7°F (13.7°C) is noted during the nights in Camp Grove, Illinois.Humidity
In September, the average relative humidity is 77%.Rainfall
In Camp Grove, during September, the rain falls for 9.3 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Camp Grove, during the entire year, the rain falls for 116.8 days and collects up to 13.98" (355mm) of precipitation.Snowfall
In Camp Grove, snow does not fall in May through September.Daylight
In Camp Grove, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:25 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:41 pm CDT.
Sunshine
The average sunshine in September is 9.1h.UV index
In Camp Grove, Illinois, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 4 in September translates into these instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Camp Grove?
What is the average humidity in September in Camp Grove?
How much does it rain in Camp Grove in September?
When it does not snow in Camp Grove?
Does it snow in Camp Grove in September?
What is the average length of the day in September in Camp Grove?
When is the sunrise / sunset in September in Camp Grove?
How long on average sun shines in September in Camp Grove?
How high is the UV index in September in Camp Grove?
Average temperature in September
Camp Grove, IL
- Average high temperature in September: 75.7°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 (29.7°F).
- Average low temperature in September: 56.7°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in September
Camp Grove, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Camp Grove, IL
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Camp Grove, IL
- Average humidity in September: 77%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Camp Grove, IL
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in September
Camp Grove, IL
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is May (15.2 days).
The months with the least rainy days are January and February (4.2 days).
Average snowfall in September
Camp Grove, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Camp Grove, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.6 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
Camp Grove, IL
- Average daylight in September: 12h and 3min
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 September: 9h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Camp Grove, IL
- Average sunshine days in September: 18.3 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in September
Camp Grove, IL
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Camp Grove, IL
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in September
Camp Grove, 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).
Camp Grove, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location