September weather forecastCentral City, IL
September
Weather in September
September, the first month of the autumn in Central City, is also a moderately hot month, with an average temperature ranging between max 78.4°F (25.8°C) and min 59.9°F (15.5°C).Temperature
September indicates a minor shift in the average high-temperature, from August's warm 83.8°F (28.8°C) to a still moderately hot 78.4°F (25.8°C). In Central City, September's nights observe an average temperature dip to a refreshing 59.9°F (15.5°C).Humidity
In Central City, the average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall in Central City. Rain falls for 6.3 days and accumulates 0.24" (6mm) of precipitation.Snowfall
In Central City, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:26 am and sunset at 7:26 pm. On the last day of September, in Central City, sunrise is at 6:52 am and sunset at 6:40 pm CDT.
Sunshine
In September, the average sunshine in Central City is 9.1h.UV index
In Central City, Illinois, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Make use of precautions - Suggestions to resist sunburn are communicated. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Central City, IL
- Average high temperature in September: 78.4°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in September
Central City, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Central City, IL
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is February (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in September
Central City, IL
- Average humidity in September: 75%
The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Central City, IL
- Average rainfall in September: 0.24"
The wettest months (with the highest rainfall) are April and July (0.75").
The driest month (with the least rainfall) is September (0.24").
Average rainfall days in September
Central City, IL
- Average rainfall days in September: 6.3 days
The month with the highest number of rainy days is May (10.1 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in September
Central City, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Central City, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Central City, IL
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 6min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in September
Central City, IL
- Average sunshine days in September: 21.4 days
The months with the most sunshine days are January and December (24.5 days).
The month with the least sunshine days is May (16.8 days).
Average UV index in September
Central City, IL
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in September
Central City, IL
- Average cloud cover in September: 30
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Central City, 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).
