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 sees an average high-temperature of a still moderately hot 73.8°F (23.2°C), exhibiting a slight fluctuation from the previous month. In Dixon, the average temperature during the nights of September drops to a fresh 54.5°F (12.5°C).Humidity
The average relative humidity in September is 79%.Rainfall
In Dixon, in September, during 12.3 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Dixon, Illinois, during the entire year, the rain falls for 151 days and collects up to 31.06" (789mm) of precipitation.Snowfall
In Dixon, snow does not fall in May through September.Daylight
The average length of the day in September in Dixon is 12h and 28min.On the first day of September, sunrise is at 6:24 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:40 pm CDT.
Sunshine
In Dixon, Illinois, the average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Ensure safety - Recommendations to avert sunburn are presented. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Dixon in September?
What is the average humidity in September in Dixon?
How many days does it rain in September in Dixon?
When it does not snow in Dixon?
Does it snow in Dixon in September?
What is the average length of the day in September in Dixon?
When are sunrise and sunset in September in Dixon?
How long on average sun shines in September in Dixon?
What is the UV index reading in September in Dixon?
Average temperature in September
Dixon, IL
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in September
Dixon, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Dixon, IL
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in September
Dixon, IL
- Average humidity in September: 79%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Dixon, IL
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is May (4.65").
The driest months (with the least rainfall) are January and February (1.57").
Average rainfall days in September
Dixon, IL
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in September
Dixon, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Dixon, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.4 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
Dixon, 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 5min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Dixon, IL
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is June (9.7 days).
Average UV index in September
Dixon, 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
Dixon, IL
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in September
Dixon, IL
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Dixon, Illinois, USA
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