September weather forecastClinton, MN
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Clinton, Minnesota, with an average temperature fluctuating between 73°F (22.8°C) and 52.7°F (11.5°C).Temperature
With the arrival of September, Clinton experiences a modest decline in average high-temperatures, transitioning from a moderately hot 80.8°F (27.1°C) in August to a pleasant 73°F (22.8°C). September brings an average low-temperature of 52.7°F (11.5°C) to Clinton.Humidity
The average relative humidity in September in Clinton is 67%.Rainfall
In Clinton, during September, the rain falls for 9.4 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Clinton, during the entire year, the rain falls for 106.9 days and collects up to 19.84" (504mm) of precipitation.Snowfall
In Clinton, Minnesota, snow does not fall in June through September.Daylight
In September, the average length of the day in Clinton, Minnesota, is 12h and 31min.On the first day of the month, sunrise is at 6:48 am and sunset at 8:02 pm. On the last day of September, in Clinton, sunrise is at 7:23 am and sunset at 7:07 pm CDT.
Sunshine
In Clinton, the average sunshine in September is 9h.UV index
In Clinton, Minnesota, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Clinton, MN
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (19.6°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).
Average pressure in September
Clinton, MN
- Average pressure in September: 29.98"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Clinton, MN
- Average wind speed in September: 9.1mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in September
Clinton, MN
- Average humidity in September: 67%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (66%).
Average rainfall in September
Clinton, MN
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is June (3.07").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in September
Clinton, MN
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is February (1.8 days).
Average snowfall in September
Clinton, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Clinton, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Clinton, MN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Clinton, MN
- Average sunshine days in September: 18.2 days
The months with the most sunshine days are October and November (18.7 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in September
Clinton, 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 and December (UV index 1).
Average cloud cover in September
Clinton, MN
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 25).
Average visibility in September
Clinton, MN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
