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
With the arrival of September, Sutter experiences a modest decline in average high-temperatures, transitioning from 82.9°F (28.3°C) in August to a still warm 77.5°F (25.3°C). The mean low-temperature during September nights in Sutter, Illinois, is a moderate 57.7°F (14.3°C).Humidity
In September, the average relative humidity in Sutter is 74%.Rainfall
In September, in Sutter, the rain falls for 11.7 days. Throughout September, 2.28" (58mm) of precipitation is accumulated. In Sutter, during the entire year, the rain falls for 140.6 days and collects up to 27.72" (704mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September is 12h and 26min.On the first day of September in Sutter, sunrise is at 6:33 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:48 pm CDT.
Sunshine
In Sutter, the average sunshine in September is 9.4h.UV index
In September, the average daily maximum UV index in Sutter is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Be vigilant - Suggestions to stave off sun damage are provided. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
What are the temperatures in Sutter in September?
What is the average humidity in September in Sutter?
How many days does it rain in September in Sutter?
When it does not snow in Sutter?
Does it snow in Sutter in September?
What is the average length of the day in September in Sutter?
What time are sunrise and sunset in September in Sutter?
How long on average sun shines in September in Sutter?
What is the UV index intensity in September in Sutter?
Average temperature in September
Sutter, IL
- Average high temperature in September: 77.5°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in September: 57.7°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in September
Sutter, IL
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Sutter, IL
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in September
Sutter, IL
- Average humidity in September: 74%
The months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Sutter, IL
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in September
Sutter, IL
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in September
Sutter, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.94").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Sutter, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 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
Sutter, 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 24min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Sutter, IL
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in September
Sutter, IL
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Sutter, IL
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Sutter, IL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Sutter, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
