September weather forecastFrost, MN
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Frost, Minnesota, with an average temperature varying between 53.8°F (12.1°C) and 73°F (22.8°C).Temperature
As Frost welcomes September, the average high-temperature stabilizes at an agreeable 73°F (22.8°C), showing little deviation from August's 78.3°F (25.7°C). Throughout September, Frost witnesses a consistent average low-temperature of 53.8°F (12.1°C).Humidity
In September, the average relative humidity is 75%.Rainfall
In September, the rain falls for 11.8 days. Throughout September, 2.17" (55mm) of precipitation is accumulated. In Frost, during the entire year, the rain falls for 126.1 days and collects up to 23.23" (590mm) of precipitation.Snowfall
In Frost, Minnesota, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September, sunrise is at 6:40 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:57 pm CDT.
Sunshine
In Frost, the average sunshine in September is 9h.UV index
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 ordinary person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Frost, MN
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (21.9°F).
- Average low temperature in September: 53.8°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in September
Frost, MN
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Frost, MN
- Average wind speed in September: 8.7mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity in September
Frost, MN
- Average humidity in September: 75%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Frost, MN
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is June (4.06").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in September
Frost, MN
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in September
Frost, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.51").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Frost, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Frost, MN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Frost, MN
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is June (9.7 days).
Average UV index in September
Frost, MN
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in September
Frost, MN
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in September
Frost, MN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).





