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 brings a minor shift in the average high-temperature, adjusting from a warm 77.7°F (25.4°C) in August to an agreeable 72°F (22.2°C). Nighttime temperatures in Davis, Illinois, consistently average a cool 52.9°F (11.6°C) during September.Humidity
In Davis, Illinois, the average relative humidity in September is 81%.Rainfall
In September, in Davis, the rain falls for 8.1 days. Throughout September, 0.71" (18mm) of precipitation is accumulated. Throughout the year, there are 90.4 rainfall days, and 7.09" (180mm) of precipitation is accumulated.Snowfall
In Davis, Illinois, snow does not fall in May through September.Daylight
In September, the average length of the day in Davis is 12h and 28min.On the first day of September in Davis, sunrise is at 6:23 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:40 pm CDT.
Sunshine
In September, the average sunshine 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 vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Davis in September?
What is the average humidity in September in Davis?
How many days does it rain in September in Davis?
When it does not snow in Davis?
Does it snow in Davis in September?
What is the average length of the day in September in Davis?
When are sunrise and sunset in September in Davis?
How long on average sun shines in September in Davis?
What is the UV index intensity in September in Davis?
Average temperature in September
Davis, IL
- Average high temperature in September: 72°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in September
Davis, 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
Davis, IL
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Davis, IL
- Average humidity in September: 81%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (76%).
Average rainfall in September
Davis, IL
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is June (0.98").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days in September
Davis, IL
- Average rainfall days in September: 8.1 days
The month with the highest number of rainy days is May (12.8 days).
The months with the least rainy days are January and February (2.4 days).
Average snowfall in September
Davis, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.22").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Davis, 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
Davis, 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 6min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January and February (Average sunshine: 3h and 30min).
Average sunshine days in September
Davis, IL
- Average sunshine days in September: 19.8 days
The months with the most sunshine days are November and December (22.9 days).
The month with the least sunshine days is June (13.4 days).
Average UV index in September
Davis, IL
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Davis, IL
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in September
Davis, IL
- Average visibility in September: 5mi
The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).
Davis, Illinois, USA
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