September weather forecastRosemount, MN
September
Weather in September
September, the first month of the autumn in Rosemount, is still a pleasant month, with an average temperature ranging between max 71.1°F (21.7°C) and min 52.9°F (11.6°C).Temperature
The beginning of September subtly marks a decrease in the average high-temperature, transitioning from a warm 78.4°F (25.8°C) in August to an agreeable 71.1°F (21.7°C). During September, Rosemount experiences a consistent low-temperature average of 52.9°F (11.6°C).Humidity
The average relative humidity in September is 75%.Rainfall
In Rosemount, in September, during 5.5 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. In Rosemount, during the entire year, the rain falls for 62.1 days and collects up to 4.88" (124mm) of precipitation.Snowfall
In Rosemount, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:35 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:54 pm CDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 4 in September leads to these guidelines:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rosemount, MN
- Average high temperature in September: 71.1°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).
Average pressure in September
Rosemount, MN
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Rosemount, MN
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is April (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in September
Rosemount, MN
- Average humidity in September: 75%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April, May and October (72%).
Average rainfall in September
Rosemount, MN
- Average rainfall in September: 0.35"
The wettest month (with the highest rainfall) is June (0.79").
The driest month (with the least rainfall) is January (0.16").
Average rainfall days in September
Rosemount, MN
- Average rainfall days in September: 5.5 days
The month with the highest number of rainy days is June (9.5 days).
The month with the least rainy days is February (0.8 days).
Average snowfall in September
Rosemount, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Rosemount, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rosemount, 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: 8h and 48min
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 6min).
Average sunshine days in September
Rosemount, MN
- Average sunshine days in September: 22.1 days
The month with the most sunshine days is January (25.6 days).
The month with the least sunshine days is June (17.8 days).
Average UV index in September
Rosemount, 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 and November (UV index 1).
Average cloud cover in September
Rosemount, MN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Rosemount, MN
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
