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
September brings a slight decrease in the average high-temperature, shifting from a moderately hot 74.8°F (23.8°C) in August to an enjoyable 66°F (18.9°C). An average temperature of 47.1°F (8.4°C) is recorded during the nights in September.Humidity
The average relative humidity in September is 78%.Rainfall
In Cotton, Minnesota, in September, during 14.3 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. In Cotton, during the entire year, the rain falls for 123.8 days and collects up to 22.24" (565mm) of precipitation.Snowfall
In Cotton, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:08 am and sunset at 6:50 pm CDT.
Sunshine
In September, the average sunshine is 7.9h.UV index
The average daily maximum UV index in September in Cotton is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The average daily UV index of 3 in September transforms into the following instructions:
Put precautions into practice - Guidance to elude sunburn is provided. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
What are the temperatures in Cotton in September?
What is the average humidity in September in Cotton?
How many days does it rain in September in Cotton?
When it does not snow in Cotton?
Does it snow in Cotton in September?
What is the average length of the day in September in Cotton?
What time are sunrise and sunset in September in Cotton?
How many hours of sunshine does Cotton have in September?
What is the UV index intensity in September in Cotton?
Average temperature in September
Cotton, MN
- Average high temperature in September: 66°F
The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (14.4°F).
- Average low temperature in September: 47.1°F
The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (0°F).
Average pressure in September
Cotton, MN
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Cotton, MN
- Average wind speed in September: 8.1mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in September
Cotton, MN
- Average humidity in September: 78%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Cotton, MN
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is June (2.83").
The driest months (with the least rainfall) are January and February (0.91").
Average rainfall days in September
Cotton, MN
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is June (17.5 days).
The month with the least rainy days is February (1.5 days).
Average snowfall in September
Cotton, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (8.7").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Cotton, MN
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (21 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Cotton, MN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).
Average sunshine days in September
Cotton, MN
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is September (13.6 days).
The month with the least sunshine days is June (9.5 days).
Average UV index in September
Cotton, MN
- Average UV index in September: 3
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Cotton, MN
- Average cloud cover in September: 44
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in September
Cotton, MN
- Average visibility in September: 5mi
The months with the highest visibility are May, June, July and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Cotton, Minnesota, USA
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