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
As September commences, the average high-temperature subtly reduces, transitioning from a moderately hot 79.5°F (26.4°C) in August to a pleasant 72.9°F (22.7°C). During September nights, Clarkfield records an average temperature of 52.9°F (11.6°C).Humidity
In September, the average relative humidity is 70%.Rainfall
In Clarkfield, during September, the rain falls for 9.4 days and regularly aggregates up to 1.18" (30mm) of precipitation. In Clarkfield, during the entire year, the rain falls for 101.9 days and collects up to 15.12" (384mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Clarkfield is 12h and 31min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:59 pm. On the last day of September, in Clarkfield, sunrise is at 7:20 am and sunset at 7:05 pm CDT.
Sunshine
The average sunshine in September in Clarkfield is 9.1h.UV index
The average daily maximum UV index in September in Clarkfield is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Clarkfield in September?
What is the average humidity in September in Clarkfield?
How much does it rain in Clarkfield in September?
When it does not snow in Clarkfield?
Does it snow in Clarkfield in September?
What is the average length of the day in September in Clarkfield?
When is the sunrise / sunset in September in Clarkfield?
How long on average sun shines in September in Clarkfield?
What is the UV index reading in September in Clarkfield?
Average temperature in September
Clarkfield, MN
- Average high temperature in September: 72.9°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (20.3°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (6.8°F).
Average pressure in September
Clarkfield, MN
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Clarkfield, MN
- Average wind speed in September: 8.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).
Average humidity in September
Clarkfield, MN
- Average humidity in September: 70%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is May (66%).
Average rainfall in September
Clarkfield, MN
- Average rainfall in September: 1.18"
The wettest months (with the highest rainfall) are June and July (2.4").
The driest months (with the least rainfall) are January and February (0.47").
Average rainfall days in September
Clarkfield, MN
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is June (15.6 days).
The month with the least rainy days is February (2 days).
Average snowfall in September
Clarkfield, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Clarkfield, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Clarkfield, MN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Clarkfield, MN
- Average sunshine days in September: 18.9 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is June (12 days).
Average UV index in September
Clarkfield, 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 November (UV index 1).
Average cloud cover in September
Clarkfield, MN
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Clarkfield, 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).
Clarkfield, Minnesota, USA
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