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
September welcomes an average high-temperature of a still moderately hot 75.7°F (24.3°C), not much different from the preceding month. Throughout the month of September, the nighttime temperature dips to an average of 57.4°F (14.1°C).Humidity
In Gibson City, Illinois, the average relative humidity in September is 77%.Rainfall
In Gibson City, in September, it is raining for 10.3 days, with typically 0.94" (24mm) of accumulated precipitation. In Gibson City, during the entire year, the rain falls for 126.2 days and collects up to 14.96" (380mm) of precipitation.Snowfall
May through September are months without snowfall in Gibson City, Illinois.Daylight
In September, the average length of the day in Gibson City is 12h and 27min.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
The average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Prioritize safety - Suggestions to prevent sun damage are offered. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What is the usual temperature for Gibson City in September?
What is the average humidity in September in Gibson City?
How much does it rain in Gibson City in September?
When it does not snow in Gibson City?
Does it snow in Gibson City in September?
What is the average length of the day in September in Gibson City?
When is the sunrise / sunset in September in Gibson City?
How many hours of sunshine does Gibson City have in September?
What is the UV index reading in September in Gibson City?
Average temperature in September
Gibson City, IL
- Average high temperature in September: 75.7°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in September: 57.4°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in September
Gibson City, 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
Gibson City, IL
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Gibson City, IL
- Average humidity in September: 77%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Gibson City, IL
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is May (1.93").
The driest months (with the least rainfall) are February and December (0.75").
Average rainfall days in September
Gibson City, IL
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Gibson City, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Gibson City, IL
- Average snowfall days in September: 0 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, August and September (0 days).
Average daylight in September /
Average sunshine in September
Gibson City, 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 18min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Gibson City, IL
- Average sunshine days in September: 17 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in September
Gibson City, IL
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Gibson City, IL
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in September
Gibson City, 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).
Gibson City, Illinois, USA
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