September weather forecast
Lake Ripley, WI

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Weather in September

September, the first month of the autumn in Lake Ripley, is still a pleasant month, with an average temperature varying between 71.4°F (21.9°C) and 52°F (11.1°C).

Temperature

With the onset of September, Lake Ripley's climate undergoes a slight change as the average high-temperature moves from a moderately hot 77.4°F (25.2°C) in August to a pleasant 71.4°F (21.9°C). Lake Ripley throughout September, records an average low-temperature of 52°F (11.1°C).

Humidity

The average relative humidity in September in Lake Ripley is 81%.

Rainfall

In Lake Ripley, in September, it is raining for 11.9 days, with typically 2.32" (59mm) of accumulated precipitation. Throughout the year, in Lake Ripley, Wisconsin, there are 134.9 rainfall days, and 26.34" (669mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Lake Ripley.

Daylight

The average length of the day in September is 12h and 29min.
On the first day of the month, sunrise is at 6:21 am and sunset at 7:30 pm. On the last day of September, in Lake Ripley, sunrise is at 6:52 am and sunset at 6:38 pm CDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

In September, the average daily maximum UV index in Lake Ripley is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: A daily high UV index of 3 in September leads to these guidelines:
Prioritize safety - Suggestions to prevent sun damage are offered. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Lake Ripley?

During September, Lake Ripley experiences an average high-temperature of 71.4°F (21.9°C) and a low-temperature of 52°F (11.1°C).

What is the average humidity in September in Lake Ripley?

The average relative humidity in September in Lake Ripley, Wisconsin, is 81%.

How many days does it rain in September in Lake Ripley?

In Lake Ripley, in September, it is raining for 11.9 days, with typically 2.32" (59mm) of accumulated precipitation.

When it does not snow in Lake Ripley?

In Lake Ripley, Wisconsin, snow does not fall in June through September.

Does it snow in Lake Ripley in September?

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

What is the average length of the day in September in Lake Ripley?

The average day length in September is 12h and 29min.

What time are sunrise and sunset in September in Lake Ripley?

On the first day of September in Lake Ripley, sunrise is at 6:21 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:38 pm CDT.

How many hours of sunshine does Lake Ripley have in September?

The average sunshine duration in September in Lake Ripley, Wisconsin, is 8.5h.

What is the UV index intensity in September in Lake Ripley?

The average daily maximum UV index in September in Lake Ripley is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
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
Lake Ripley, WI

Average temperature in September - Lake Ripley, WI
  • Average high temperature in September: 71.4°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (24.1°F).

  • Average low temperature in September: 52°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).

Average pressure in September
Lake Ripley, WI

Average pressure in September - Lake Ripley, WI
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Lake Ripley, WI

Average wind speed in September - Lake Ripley, WI
  • Average wind speed in September: 7.5mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in September
Lake Ripley, WI

Average humidity in September - Lake Ripley, WI
  • Average humidity in September: 81%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is April (76%).

Average rainfall in September
Lake Ripley, WI

Average rainfall in September - Lake Ripley, WI
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is June (3.5").
The driest months (with the least rainfall) are January and February (1.1").

Average rainfall days in September
Lake Ripley, WI

Average rainfall days in September - Lake Ripley, WI
  • Average rainfall days in September: 11.9 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (4 days).

Average snowfall in September
Lake Ripley, WI

Average snowfall in September - Lake Ripley, WI
  • Average snowfall in September: 0"

The month with the highest snowfall is January (4.41").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Lake Ripley, WI

Average snowfall days in September - Lake Ripley, WI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Lake Ripley, WI

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days in September
Lake Ripley, WI

Average sunshine days in September - Lake Ripley, WI
  • Average sunshine days in September: 16.2 days

The month with the most sunshine days is December (17.5 days).
The month with the least sunshine days is June (10.7 days).

Average UV index in September
Lake Ripley, WI

Average UV index in September - Lake Ripley, 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
Lake Ripley, WI

Average cloud cover in September - Lake Ripley, WI
  • Average cloud cover in September: 36

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in September
Lake Ripley, WI

Average visibility in September - Lake Ripley, WI
  • Average visibility in September: 5mi

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

Lake Ripley, Wisconsin, USA

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