September weather forecastRushmore, MN
September
Weather in September
September, the first month of the autumn in Rushmore, is also an agreeable month, with an average temperature varying between 53.2°F (11.8°C) and 72.5°F (22.5°C).Temperature
With the onset of September, Rushmore experiences a modest temperature adjustment, with the average high-temperature gently receding from a moderately hot 78.4°F (25.8°C) in August to an agreeable 72.5°F (22.5°C). During September, the temperature in Rushmore is averaged to a low of 53.2°F (11.8°C) at night.Humidity
In Rushmore, the average relative humidity in September is 73%.Rainfall
In Rushmore, in September, during 11.2 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. In Rushmore, during the entire year, the rain falls for 130.6 days and collects up to 24.57" (624mm) of precipitation.Snowfall
In Rushmore, Minnesota, snow does not fall in June through September.Daylight
In Rushmore, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:47 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:05 pm CDT.
Sunshine
In Rushmore, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September in Rushmore is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 translates into these guidelines:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rushmore, MN
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in September: 53.2°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 (8.6°F).
Average pressure in September
Rushmore, MN
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Rushmore, MN
- Average wind speed in September: 9.4mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in September
Rushmore, MN
- Average humidity in September: 73%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Rushmore, MN
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is June (3.78").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in September
Rushmore, MN
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is June (19 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in September
Rushmore, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.22").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Rushmore, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rushmore, MN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Rushmore, MN
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (8.7 days).
Average UV index in September
Rushmore, MN
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are February and November (UV index 1).
Average cloud cover in September
Rushmore, MN
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Rushmore, 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).
