September weather forecastBrimson, MO
September
Weather in September
September, the first month of the autumn in Brimson, is also a moderately hot month, with an average temperature fluctuating between 57.4°F (14.1°C) and 76.8°F (24.9°C).Temperature
As September begins, there is a minor decrease in the average high-temperature, softly falling from a warm 82.9°F (28.3°C) in August to a still moderately hot 76.8°F (24.9°C). Brimson's average low-temperature in September is measured at a moderate 57.4°F (14.1°C).Humidity
In September, the average relative humidity is 76%.Rainfall
In Brimson, in September, during 11.3 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. In Brimson, during the entire year, the rain falls for 130.3 days and collects up to 25.43" (646mm) of precipitation.Snowfall
In Brimson, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:11 am and sunset at 6:58 pm CDT.
Sunshine
In Brimson, the average sunshine in September is 9.3h.UV index
In Brimson, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 5 translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Brimson, MO
- Average high temperature in September: 76.8°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in September: 57.4°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in September
Brimson, MO
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Brimson, MO
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Brimson, MO
- Average humidity in September: 76%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Brimson, MO
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is June (3.78").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in September
Brimson, MO
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in September
Brimson, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.78").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Brimson, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Brimson, MO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in September
Brimson, MO
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (20.7 days).
The months with the least sunshine days are May and June (11.2 days).
Average UV index in September
Brimson, MO
- 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
Brimson, MO
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in September
Brimson, 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).
