September weather forecastTower, MN
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Tower, Minnesota, with an average temperature ranging between min 46.9°F (8.3°C) and max 65.3°F (18.5°C).Temperature
A shift in the average high-temperature occurs in September, reducing from a moderately hot 74.8°F (23.8°C) in August to a comfortable 65.3°F (18.5°C). An average nighttime temperature of 46.9°F (8.3°C) is noted in Tower during the month of September.Humidity
The average relative humidity in September in Tower, Minnesota, is 77%.Rainfall
In Tower, during September, the rain falls for 13.7 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, there are 122.7 rainfall days, and 22.05" (560mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 33min.On the first day of September in Tower, sunrise is at 6:28 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:49 pm CDT.
Sunshine
In September, the average sunshine in Tower is 7.7h.UV index
The average daily maximum UV index in September in Tower is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tower, MN
- Average high temperature in September: 65.3°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (14.4°F).
- Average low temperature in September: 46.9°F
The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (-0.6°F).
Average pressure in September
Tower, MN
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Tower, MN
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in September
Tower, MN
- Average humidity in September: 77%
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
Tower, MN
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is July (2.87").
The driest month (with the least rainfall) is February (0.83").
Average rainfall days in September
Tower, MN
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in September
Tower, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (8.66").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Tower, MN
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (21.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Tower, MN
- Average daylight in September: 12h and 36min
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: 7h and 42min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January and February (Average sunshine: 1h and 48min).
Average sunshine days in September
Tower, MN
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in September
Tower, MN
- Average UV index in September: 3
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Tower, MN
- Average cloud cover in September: 45
The month with the most cloud cover is January (Cloud cover 84).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in September
Tower, MN
- Average visibility in September: 5mi
The months with the highest visibility are May, June and July (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
