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
The onset of September brings a small change in high-temperatures, falling from a warm 80.1°F (26.7°C) in August to a pleasant 70°F (21.1°C). Crookston's nights in September cool down to an average low-temperature of 51.3°F (10.7°C).Humidity
In September, the average relative humidity is 64%.Rainfall
In Crookston, in September, during 9 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. Throughout the year, there are 100.5 rainfall days, and 17.87" (454mm) of precipitation is accumulated.Snowfall
In Crookston, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 33min.On the first day of the month, sunrise is at 6:45 am and sunset at 8:06 pm. On the last day of September, in Crookston, sunrise is at 7:25 am and sunset at 7:07 pm CDT.
Sunshine
In Crookston, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 4 in September translates into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Crookston have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Crookston, MN
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is August (80.1°F).
The month with the lowest average high temperature is January (14.4°F).
- Average low temperature in September: 51.3°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (0.1°F).
Average pressure in September
Crookston, 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
Crookston, MN
- Average wind speed in September: 9.8mph
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
Crookston, MN
- Average humidity in September: 64%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Crookston, MN
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in September
Crookston, MN
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is June (16.2 days).
The month with the least rainy days is January (1.6 days).
Average snowfall in September
Crookston, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Crookston, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Crookston, MN
- Average daylight in September: 12h and 4min
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 30min).
- Average sunshine in September: 8h and 4min
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
Crookston, MN
- Average sunshine days in September: 19.4 days
The month with the most sunshine days is August (19.7 days).
The month with the least sunshine days is June (11 days).
Average UV index in September
Crookston, 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
Crookston, MN
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Crookston, 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).
Crookston, Minnesota, USA
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