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
Wheaton, Missouri, in September undergoes a slight reduction in the average high-temperature, shifting from August's hot 87.3°F (30.7°C) to a moderately hot 80.1°F (26.7°C). During September, Wheaton witnesses a consistent average low-temperature of 60.4°F (15.8°C).Humidity
In Wheaton, Missouri, the average relative humidity in September is 74%.Rainfall
In Wheaton, in September, it is raining for 13.5 days, with typically 2.68" (68mm) of accumulated precipitation. In Wheaton, during the entire year, the rain falls for 152.1 days and collects up to 34.45" (875mm) of precipitation.Snowfall
In Wheaton, snow does not fall in June through October.Daylight
The average length of the day in September is 12h and 24min.On the first day of September in Wheaton, sunrise is at 6:47 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 7:00 pm CDT.
Sunshine
In September, the average sunshine is 9.3h.UV index
In Wheaton, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In September, a regular UV index of 5 translates into these guidelines:
Take necessary precautions - Suggestions to elude sunburn are provided. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
What is the temperature in September in Wheaton?
What is the average humidity in September in Wheaton?
How many days does it rain in September in Wheaton?
When it does not snow in Wheaton?
What is the average length of the day in September in Wheaton?
When is the sunrise / sunset in September in Wheaton?
How many hours of sunshine does Wheaton have in September?
How high is the UV index in September in Wheaton?
Average temperature in September
Wheaton, MO
- Average high temperature in September: 80.1°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (42.4°F).
- Average low temperature in September: 60.4°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in September
Wheaton, MO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Wheaton, MO
- Average wind speed in September: 7.2mph
The windiest months (with the highest average wind speed) are March and April (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Wheaton, MO
- Average humidity in September: 74%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, July, August and October (73%).
Average rainfall in September
Wheaton, MO
- Average rainfall in September: 2.68"
The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is February (1.65").
Average rainfall days in September
Wheaton, MO
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in September
Wheaton, MO
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (2.17").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Wheaton, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Wheaton, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in September
Wheaton, MO
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in September
Wheaton, MO
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Wheaton, MO
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Wheaton, MO
- 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).
Wheaton, Missouri, USA
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