September weather forecastCalumet, MN
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Calumet, Minnesota, with temperature in the range of an average low of 47.5°F (8.6°C) and an average high of 67.3°F (19.6°C).Temperature
September indicates a shift in the average high-temperature, from August's moderately hot 77.2°F (25.1°C) to an enjoyable 67.3°F (19.6°C). Throughout the month of September, the nighttime temperature in Calumet dips to an average of 47.5°F (8.6°C).Humidity
The average relative humidity in September is 76%.Rainfall
In Calumet, Minnesota, in September, it is raining for 11.6 days, with typically 1.42" (36mm) of accumulated precipitation. In Calumet, Minnesota, during the entire year, the rain falls for 113.8 days and collects up to 18.94" (481mm) of precipitation.Snowfall
In Calumet, snow does not fall in June through September.Daylight
The average length of the day in September in Calumet is 12h and 33min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:11 am and sunset at 6:53 pm CDT.
Sunshine
The average sunshine in September in Calumet is 8h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Calumet, MN
- Average high temperature in September: 67.3°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (15.8°F).
- Average low temperature in September: 47.5°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (1.4°F).
Average pressure in September
Calumet, MN
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Calumet, MN
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Calumet, MN
- Average humidity in September: 76%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (70%).
Average rainfall in September
Calumet, MN
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January and February (0.75").
Average rainfall days in September
Calumet, MN
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Calumet, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (7.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Calumet, MN
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is January (21.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Calumet, MN
- Average daylight in September: 12h and 30min
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 0min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in September
Calumet, MN
- Average sunshine days in September: 16.5 days
The months with the most sunshine days are August and September (16.5 days).
The month with the least sunshine days is February (10.1 days).
Average UV index in September
Calumet, 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
Calumet, MN
- Average cloud cover in September: 43
The month with the most cloud cover is January (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in September
Calumet, MN
- Average visibility in September: 5mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February, March and December (4mi).





