September weather forecastClearbrook, MN
September
Weather in September
September, the first month of the autumn in Clearbrook, is still a refreshing month, with an average temperature ranging between max 67.5°F (19.7°C) and min 48°F (8.9°C).Temperature
September shows a mild decline in the average high-temperature, falling from August's warm 76.8°F (24.9°C) to a comfortable 67.5°F (19.7°C). An average nighttime temperature of 48°F (8.9°C) is recorded in Clearbrook during September.Humidity
In September, the average relative humidity in Clearbrook is 72%.Rainfall
In Clearbrook, during September, the rain falls for 10.1 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, there are 104.1 rainfall days, and 18.5" (470mm) of precipitation is accumulated.Snowfall
In Clearbrook, Minnesota, snow does not fall in June through September.Daylight
In September, the average length of the day in Clearbrook is 12h and 33min.On the first day of September in Clearbrook, sunrise is at 6:41 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:02 pm CDT.
Sunshine
In Clearbrook, the average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Clearbrook, MN
- Average high temperature in September: 67.5°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (15.6°F).
- Average low temperature in September: 48°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (1.2°F).
Average pressure in September
Clearbrook, MN
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Clearbrook, MN
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is October (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).
Average humidity in September
Clearbrook, MN
- Average humidity in September: 72%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is May (70%).
Average rainfall in September
Clearbrook, MN
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in September
Clearbrook, MN
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in September
Clearbrook, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (6.1").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Clearbrook, MN
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is January (18.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Clearbrook, MN
- Average daylight in September: 12h and 36min
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 18min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 0min).
Average sunshine days in September
Clearbrook, MN
- Average sunshine days in September: 18.7 days
The month with the most sunshine days is September (18.7 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in September
Clearbrook, 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
Clearbrook, MN
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Clearbrook, MN
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
