September weather forecast
Pepin, WI

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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.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Pepin in September?

The average high-temperature and low-temperature in Pepin during September are 70.7°F (21.5°C) and 50.9°F (10.5°C) respectively.

What is the average humidity in September?

The average relative humidity in September is 80%.

How many days does it rain in September?

In Pepin, in September, during 12 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

When it does not snow?

In Pepin, snow does not fall in June through September.

Does it snow in Pepin in September?

In Pepin, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

In September, the average day length in Pepin is 12h and 30min.

When are sunrise and sunset in September in Pepin?

In September, on the first day of the month, sunrise is at 6:32 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:50 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 8.5h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Pepin, WI

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in September - Pepin, WI
  • Average daylight in September: 12h and 3min

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 3min

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 - 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 - 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 - 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 - 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).

Pepin, Wisconsin, USA

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