September weather forecastWarrensburg, IL
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Warrensburg, Illinois, with an average temperature ranging between max 76.6°F (24.8°C) and min 58.3°F (14.6°C).Temperature
The arrival of September coincides with an average high-temperature of a still moderately hot 76.6°F (24.8°C), indicating a minimal shift from August's 81.1°F (27.3°C). Warrensburg experiences a steady low-temperature of 58.3°F (14.6°C) throughout September.Humidity
In Warrensburg, the average relative humidity in September is 76%.Rainfall
In Warrensburg, in September, during 11.5 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Warrensburg, during the entire year, the rain falls for 139.9 days and collects up to 20.91" (531mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:39 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
In Warrensburg, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Warrensburg, IL
- Average high temperature in September: 76.6°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in September: 58.3°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in September
Warrensburg, 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 (29.92"Hg).
Average wind speed in September
Warrensburg, IL
- Average wind speed in September: 7.4mph
The windiest months (with the highest average wind speed) are January, February and April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in September
Warrensburg, IL
- Average humidity in September: 76%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Warrensburg, IL
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is December (1.06").
Average rainfall days in September
Warrensburg, IL
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in September
Warrensburg, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Warrensburg, IL
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Warrensburg, IL
- Average daylight in September: 12h and 24min
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 0min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Warrensburg, IL
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in September
Warrensburg, 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
Warrensburg, IL
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in September
Warrensburg, 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).





