September weather forecastStrasburg, IL
September
Weather in September
September, the first month of the autumn in Strasburg, is still a warm month, with an average temperature ranging between max 77.2°F (25.1°C) and min 59.2°F (15.1°C).Temperature
The introduction of September notes a subtle temperature variation to a still warm 77.2°F (25.1°C) from August's 81.7°F (27.6°C). During September nights, Strasburg records an average temperature of 59.2°F (15.1°C).Humidity
In Strasburg, the average relative humidity in September is 75%.Rainfall
The months with the least rainfall are February, September and November Rain falls for 8.6 days and accumulates 0.51" (13mm) of rain.Snowfall
In Strasburg, snow does not fall in April through September.Daylight
In Strasburg, the average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:23 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:38 pm CDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: A typical high UV index of 5 in September suggests the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Strasburg, IL
- Average high temperature in September: 77.2°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in September: 59.2°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in September
Strasburg, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Strasburg, IL
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in September
Strasburg, IL
- Average humidity in September: 75%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Strasburg, IL
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is April (1.3").
The driest months (with the least rainfall) are February, September and November (0.51").
Average rainfall days in September
Strasburg, IL
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in September
Strasburg, IL
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.87").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Strasburg, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.3 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
Strasburg, IL
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Strasburg, IL
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is May (13.8 days).
Average UV index in September
Strasburg, 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
Strasburg, IL
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Strasburg, IL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
