September weather forecastRedwood Falls, MN
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Redwood Falls, Minnesota, with an average temperature fluctuating between 72.9°F (22.7°C) and 52.9°F (11.6°C).Temperature
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a moderately hot 79.2°F (26.2°C) in August to an agreeable 72.9°F (22.7°C). Throughout the month of September, Redwood Falls witnesses an average temperature of 52.9°F (11.6°C).Humidity
The average relative humidity in September is 71%.Rainfall
In Redwood Falls, in September, during 9.5 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, there are 98 rainfall days, and 14.61" (371mm) of precipitation is accumulated.Snowfall
In Redwood Falls, snow does not fall in May through September.Daylight
In Redwood Falls, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:56 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:02 pm CDT.
Sunshine
In Redwood Falls, the average sunshine in September is 9h.UV index
In Redwood Falls, Minnesota, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Redwood Falls, 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 (62.4°F).
The coldest month (with the lowest average low temperature) is January (6.6°F).
Average pressure in September
Redwood Falls, MN
- Average pressure in September: 29.99"Hg
The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Redwood Falls, MN
- Average wind speed in September: 8.6mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in September
Redwood Falls, MN
- Average humidity in September: 71%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is May (67%).
Average rainfall in September
Redwood Falls, MN
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Redwood Falls, MN
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is June (15.6 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in September
Redwood Falls, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.19").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Redwood Falls, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Redwood Falls, MN
- Average daylight in September: 12h and 30min
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 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Redwood Falls, MN
- Average sunshine days in September: 19 days
The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is June (12.9 days).
Average UV index in September
Redwood Falls, 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, February, November and December (UV index 1).
Average cloud cover in September
Redwood Falls, MN
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Redwood Falls, 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).
