September weather forecastPepin, WI
September
Weather in September
September, the first month of the autumn in Pepin, is also an agreeable month, with an average temperature ranging between min 50.9°F (10.5°C) and max 70.7°F (21.5°C).Temperature
The arrival of September signals a subtle shift in temperature, down from a warm 77.5°F (25.3°C) in August to a pleasant 70.7°F (21.5°C). In the month of September, Pepin records a consistent average low-temperature of 50.9°F (10.5°C).Humidity
The average relative humidity in September is 80%.Rainfall
In Pepin, during September, the rain falls for 12 days and regularly aggregates up to 2.09" (53mm) of precipitation. Throughout the year, there are 135.6 rainfall days, and 25.79" (655mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Pepin is 12h and 30min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:50 pm CDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In Pepin, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 4 in September translates into these instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Pepin, WI
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (20.5°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (7.2°F).
Average pressure in September
Pepin, WI
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Pepin, WI
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in September
Pepin, WI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Pepin, WI
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is June (4.49").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in September
Pepin, WI
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is June (18.3 days).
The month with the least rainy days is February (3.2 days).
Average snowfall in September
Pepin, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (7.01").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Pepin, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Pepin, WI
- 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 30min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Pepin, WI
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in September
Pepin, WI
- 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
Pepin, WI
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Pepin, WI
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).
