September weather forecast
Leopolis, WI

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Weather in September

The first month of the autumn, September, is still a pleasant month in Leopolis, Wisconsin, with an average temperature fluctuating between 50.9°F (10.5°C) and 69.8°F (21°C).

Temperature

With the onset of September, Leopolis's average high-temperature slightly adjusts, moderately receding from August's warm 77.5°F (25.3°C) to an agreeable 69.8°F (21°C). Nighttime temperatures hover around an average low of 50.9°F (10.5°C) in September.

Humidity

The average relative humidity in September is 80%.

Rainfall

In Leopolis, during September, the rain falls for 10.9 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Leopolis, during the entire year, the rain falls for 122.7 days and collects up to 19.72" (501mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September is 12h and 31min.
On the first day of the month, sunrise is at 6:18 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:53 am and sunset at 6:37 pm CDT.

Sunshine

In September, the average sunshine is 8.4h.

UV index

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The UV index of 3 in September translates into these instructions:
Take precautions - Protection against skin and eye damage is obliged. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Jun 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Leopolis in September?

In Leopolis, 69.8°F (21°C) is the average high-temperature and 50.9°F (10.5°C) is the average low-temperature during September.

What is the average humidity in September?

In Leopolis, the average relative humidity in September is 80%.

How much does it rain in Leopolis in September?

In Leopolis, in September, it is raining for 10.9 days, with typically 1.42" (36mm) of accumulated precipitation.

When it does not snow?

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

Does it snow in September?

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

How many hours of daylight does Leopolis have in September?

In September, the average day length is 12h and 31min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:18 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:37 pm CDT.

How many hours of sunshine does Leopolis have in September?

In September, the average sunshine duration in Leopolis is 8.4h.

How high is the UV index in September?

The average daily maximum UV index in September is 3. 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
Leopolis, WI

Average temperature in September - Leopolis, WI
  • Average high temperature in September: 69.8°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (21.7°F).

  • Average low temperature in September: 50.9°F

The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure in September
Leopolis, WI

Average pressure in September - Leopolis, WI
  • Average pressure in September: 30.02"Hg

The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Leopolis, WI

Average wind speed in September - Leopolis, WI
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in September
Leopolis, WI

Average humidity in September - Leopolis, WI
  • Average humidity in September: 80%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).

Average rainfall in September
Leopolis, WI

Average rainfall in September - Leopolis, WI
  • Average rainfall in September: 1.42"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in September
Leopolis, WI

Average rainfall days in September - Leopolis, WI
  • Average rainfall days in September: 10.9 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (3.5 days).

Average snowfall in September
Leopolis, WI

Average snowfall in September - Leopolis, WI
  • Average snowfall in September: 0"

The month with the highest snowfall is February (4.29").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Leopolis, WI

Average snowfall days in September - Leopolis, WI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Leopolis, WI

Average daylight in September / Average sunshine in September - Leopolis, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in September
Leopolis, WI

Average sunshine days in September - Leopolis, WI
  • Average sunshine days in September: 16.6 days

The month with the most sunshine days is January (18.5 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in September
Leopolis, WI

Average UV index in September - Leopolis, WI
  • Average UV index in September: 3

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in September
Leopolis, WI

Average cloud cover in September - Leopolis, WI
  • Average cloud cover in September: 36

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in September
Leopolis, WI

Average visibility in September - Leopolis, WI
  • Average visibility in September: 5mi

The months with the highest visibility are March, April, May, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January, February and September (5mi).

Leopolis, Wisconsin, USA

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