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
Mahomet transitions into September recording an average high-temperature of a still warm 76.1°F (24.5°C), closely aligning with the preceding month's temperature. Throughout the month of September, Mahomet reports a steady low-temperature average of 58.3°F (14.6°C).Humidity
The average relative humidity in September is 76%.Rainfall
In Mahomet, in September, it is raining for 12.8 days, with typically 1.77" (45mm) of accumulated precipitation. Throughout the year, there are 152.9 rainfall days, and 29.72" (755mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Mahomet, Illinois.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 6:21 am and sunset at 7:24 pm. On the last day of September, sunrise is at 6:49 am and sunset at 6:36 pm CDT.
Sunshine
In Mahomet, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 5 in September translates into this advice:
Make use of precautions - Shielding skin and eyes from injury is a requirement. When the Sun is at its strongest around midday, find shade and limit exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Mahomet in September?
What is the average humidity in September in Mahomet?
How many days does it rain in September in Mahomet?
When it does not snow in Mahomet?
Does it snow in Mahomet in September?
What is the average length of the day in September in Mahomet?
When are sunrise and sunset in September in Mahomet?
How long on average sun shines in September in Mahomet?
What is the UV index intensity in September in Mahomet?
Average temperature in September
Mahomet, IL
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in September: 58.3°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in September
Mahomet, 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
Mahomet, IL
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in September
Mahomet, IL
- Average humidity in September: 76%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Mahomet, IL
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is December (1.65").
Average rainfall days in September
Mahomet, IL
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in September
Mahomet, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.25").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Mahomet, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.4 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
Mahomet, 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: 8h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Mahomet, IL
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in September
Mahomet, 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
Mahomet, IL
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in September
Mahomet, 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).
Mahomet, Illinois, USA
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