September weather forecastPerley, MN
September
Weather in September
September, the first month of the autumn in Perley, is still a pleasant month, with an average temperature varying between 70.7°F (21.5°C) and 51.6°F (10.9°C).Temperature
Perley's September weather features a mild decline in high-temperatures, reducing from a moderately hot 80.2°F (26.8°C) in August to a pleasant 70.7°F (21.5°C). During September, Perley consistently records a temperature low averaging a cool 51.6°F (10.9°C).Humidity
The average relative humidity in September is 64%.Rainfall
In Perley, in September, it is raining for 9.2 days, with typically 1.38" (35mm) of accumulated precipitation. Throughout the year, there are 101.8 rainfall days, and 17.44" (443mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Perley, Minnesota.Daylight
In Perley, the average length of the day in September is 12h and 32min.On the first day of September in Perley, sunrise is at 6:47 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:08 pm CDT.
Sunshine
The average sunshine in September is 8.7h.UV index
In Perley, Minnesota, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Perley, MN
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (15.6°F).
- Average low temperature in September: 51.6°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (1°F).
Average pressure in September
Perley, MN
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Perley, MN
- Average wind speed in September: 9.7mph
The windiest month (with the highest average wind speed) is October (10.4mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity in September
Perley, MN
- Average humidity in September: 64%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Perley, MN
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in September
Perley, MN
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is June (15.6 days).
The month with the least rainy days is January (1.5 days).
Average snowfall in September
Perley, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Perley, MN
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Perley, MN
- Average daylight in September: 12h and 30min
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: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in September
Perley, MN
- Average sunshine days in September: 19.4 days
The month with the most sunshine days is August (19.6 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in September
Perley, MN
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Perley, MN
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Perley, MN
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
