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
In Dardenne Prairie, the average high-temperature in September slightly decreases from 85.5°F (29.7°C) in August to a still moderately hot 79.3°F (26.3°C). Nighttime temperature in Dardenne Prairie experiences an average drop to a moderate 59.5°F (15.3°C) in September.Humidity
The average relative humidity in September is 74%.Rainfall
In September, in Dardenne Prairie, Missouri, the rain falls for 11.9 days. Throughout September, 2.13" (54mm) of precipitation is accumulated. In Dardenne Prairie, Missouri, during the entire year, the rain falls for 152.1 days and collects up to 32.01" (813mm) of precipitation.Snowfall
In Dardenne Prairie, Missouri, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September in Dardenne Prairie, sunrise is at 6:32 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:46 pm CDT.
Sunshine
In September, the average sunshine is 9.6h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 5 suggests these recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Dardenne Prairie in September?
What is the average humidity in September in Dardenne Prairie?
How much does it rain in Dardenne Prairie in September?
When it does not snow in Dardenne Prairie?
What is the average length of the day in September in Dardenne Prairie?
When are sunrise and sunset in September in Dardenne Prairie?
How long on average sun shines in September in Dardenne Prairie?
What is the UV index intensity in September in Dardenne Prairie?
Average temperature in September
Dardenne Prairie, MO
- Average high temperature in September: 79.3°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in September: 59.5°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in September
Dardenne Prairie, MO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Dardenne Prairie, MO
- Average wind speed in September: 6mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in September
Dardenne Prairie, MO
- Average humidity in September: 74%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Dardenne Prairie, MO
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is April (3.82").
The driest month (with the least rainfall) is February (1.77").
Average rainfall days in September
Dardenne Prairie, MO
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Dardenne Prairie, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Dardenne Prairie, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.3 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
Dardenne Prairie, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Dardenne Prairie, MO
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in September
Dardenne Prairie, 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, February, November and December (UV index 2).
Average cloud cover in September
Dardenne Prairie, MO
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Dardenne Prairie, 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).
Dardenne Prairie, Missouri, USA
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