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
During the shift to September, Monroe Center records a mild decrease in average high-temperature, moving from a moderately hot 78.1°F (25.6°C) in August to a pleasant 72.5°F (22.5°C). In September, Monroe Center reports a consistent average low-temperature of 54.1°F (12.3°C) during the nights.Humidity
In Monroe Center, the average relative humidity in September is 80%.Rainfall
In September, in Monroe Center, the rain falls for 7 days. Throughout September, 0.55" (14mm) of precipitation is accumulated. In Monroe Center, during the entire year, the rain falls for 92.1 days and collects up to 6.77" (172mm) of precipitation.Snowfall
In Monroe Center, snow does not fall in May through September.Daylight
In September, the average length of the day in Monroe Center is 12h and 28min.On the first day of September, sunrise is at 6:22 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 Monroe Center, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Put precautions into practice - Protective measures against sun-induced damage are advised. It's recommended to limit sun exposure when its radiation is at its peak during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Frequently asked questions
What is the usual temperature for Monroe Center in September?
What is the average humidity in September in Monroe Center?
How much does it rain in Monroe Center in September?
When it does not snow in Monroe Center?
Does it snow in Monroe Center in September?
What is the average length of the day in September in Monroe Center?
When is the sunrise / sunset in September in Monroe Center?
How long on average sun shines in September in Monroe Center?
What is the UV index reading in September in Monroe Center?
Average temperature in September
Monroe Center, 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
Monroe Center, 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
Monroe Center, 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
Monroe Center, 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
Monroe Center, 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
Monroe Center, 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
Monroe Center, 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
Monroe Center, 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
Monroe Center, 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
Monroe Center, 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
Monroe Center, 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
Monroe Center, 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
Monroe Center, 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).
Monroe Center, Illinois, USA
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