Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The transition to September results in a modest reduction in average high-temperature, moving from a moderately hot 78.4°F (25.8°C) in August to a pleasant 69.8°F (21°C). Fort Ripley observes an average low-temperature of 49.5°F (9.7°C) during September nights.Humidity
The average relative humidity in September is 74%.Rainfall
In Fort Ripley, in September, during 9.6 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. In Fort Ripley, during the entire year, the rain falls for 106.3 days and collects up to 18.39" (467mm) of precipitation.Snowfall
In Fort Ripley, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 6:38 am and sunset at 7:55 pm. On the last day of September, in Fort Ripley, sunrise is at 7:15 am and sunset at 6:58 pm CDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Fort Ripley, MN
- Average high temperature in September: 69.8°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 (17.8°F).
- Average low temperature in September: 49.5°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (4.3°F).
Average pressure in September
Fort Ripley, MN
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Fort Ripley, MN
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in September
Fort Ripley, MN
- Average humidity in September: 74%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (70%).
Average rainfall in September
Fort Ripley, MN
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is June (2.83").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in September
Fort Ripley, MN
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is May (15 days).
The months with the least rainy days are January and February (3.2 days).
Average snowfall in September
Fort Ripley, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (7.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Fort Ripley, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (20.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Fort Ripley, MN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in September
Fort Ripley, MN
- Average sunshine days in September: 18.6 days
The month with the most sunshine days is August (20 days).
The month with the least sunshine days is February (11 days).
Average UV index in September
Fort Ripley, 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
Fort Ripley, MN
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 73).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in September
Fort Ripley, MN
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Fort Ripley, Minnesota, USA
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