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's arrival correlates with a reduction in the average high-temperature, down from a warm 79°F (26.1°C) in August to an agreeable 68.9°F (20.5°C). Brooks's average low-temperature is measured at a cool 50.5°F (10.3°C) during September.Humidity
In September, the average relative humidity is 66%.Rainfall
In Brooks, in September, it is raining for 10.1 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, there are 104 rainfall days, and 18.03" (458mm) of precipitation is accumulated.Snowfall
In Brooks, 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 September, sunrise is at 6:43 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:04 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. When the Sun is at its strongest around midday, find shade and limit exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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 much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Brooks have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Brooks have in September?
How high is the UV index in September?
Average temperature in September
Brooks, MN
- Average high temperature in September: 68.9°F
The warmest months (with the highest average high temperature) are July and August (79°F).
The month with the lowest average high temperature is January (14.4°F).
- Average low temperature in September: 50.5°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (0°F).
Average pressure in September
Brooks, 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
Brooks, MN
- Average wind speed in September: 9.4mph
The windiest month (with the highest average wind speed) is October (10.1mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity in September
Brooks, MN
- Average humidity in September: 66%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Brooks, MN
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in September
Brooks, MN
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is January (1.7 days).
Average snowfall in September
Brooks, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (5.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Brooks, MN
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Brooks, MN
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in September
Brooks, MN
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is August (19.6 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Brooks, 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
Brooks, MN
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Brooks, MN
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
Brooks, Minnesota, USA
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