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
The onset of September brings a small shift in high-temperatures, falling from a moderately hot 83.5°F (28.6°C) in August to a still warm 78.1°F (25.6°C). Roodhouse experiences an average nighttime temperature of 59.2°F (15.1°C) in the month of September.Humidity
The average relative humidity in September in Roodhouse is 74%.Rainfall
In Roodhouse, during September, the rain falls for 11 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Roodhouse, Illinois, during the entire year, the rain falls for 127.3 days and collects up to 17.24" (438mm) of precipitation.Snowfall
In Roodhouse, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 26min.On the first day of September in Roodhouse, sunrise is at 6:30 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:45 pm CDT.
Sunshine
In September, the average sunshine in Roodhouse is 9.4h.UV index
In September, the average daily maximum UV index in Roodhouse is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Make use of precautions - It is urged to ward off sun damage. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What is the usual temperature for Roodhouse in September?
What is the average humidity in September in Roodhouse?
How much does it rain in Roodhouse in September?
When it does not snow in Roodhouse?
How many hours of daylight does Roodhouse have in September?
When is the sunrise / sunset in September in Roodhouse?
How many hours of sunshine does Roodhouse have in September?
What is the UV index reading in September in Roodhouse?
Average temperature in September
Roodhouse, IL
- Average high temperature in September: 78.1°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in September: 59.2°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in September
Roodhouse, IL
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Roodhouse, IL
- Average wind speed in September: 6.7mph
The windiest months (with the highest average wind speed) are January, February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in September
Roodhouse, IL
- Average humidity in September: 74%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Roodhouse, IL
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is June (2.44").
The driest months (with the least rainfall) are January and November (0.83").
Average rainfall days in September
Roodhouse, IL
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in September
Roodhouse, IL
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Roodhouse, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.2 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
Roodhouse, IL
- Average daylight in September: 12h and 2min
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 24min).
- Average sunshine in September: 9h and 2min
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 24min).
Average sunshine days in September
Roodhouse, IL
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in September
Roodhouse, 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
Roodhouse, IL
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in September
Roodhouse, 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).
Roodhouse, Illinois, USA
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