September weather forecast
Cedar Grove, WI

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Weather in September

September, the first month of the autumn in Cedar Grove, is still a comfortable month, with an average temperature ranging between max 67.3°F (19.6°C) and min 57.6°F (14.2°C).

Temperature

The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's warm 73.9°F (23.3°C) to a comfortable 67.3°F (19.6°C). In Cedar Grove, the average temperature during the nights of September drops to a moderate 57.6°F (14.2°C).

Humidity

In Cedar Grove, the average relative humidity in September is 79%.

Rainfall

In Cedar Grove, during September, the rain falls for 13.5 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, there are 141.6 rainfall days, and 28.23" (717mm) of precipitation is accumulated.

Snowfall

In Cedar Grove, Wisconsin, snow does not fall in May through September.

Daylight

In Cedar Grove, the average length of the day in September is 12h and 29min.
On the first day of September, sunrise is at 6:15 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:33 pm CDT.

Sunshine

In September, the average sunshine is 9.2h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: An average UV index of 4 in September transforms into this advice:
Heed the precautions - Suggestions to avoid sunburn are made. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Cedar Grove in September?

The high-temperature during September is 67.3°F (19.6°C) and the low-temperature is 57.6°F (14.2°C).

What is the average humidity in September?

In September, the average relative humidity is 79%.

How much does it rain in September?

In September, the rain falls for 13.5 days. Throughout September, 2.56" (65mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Cedar Grove have in September?

In Cedar Grove, the average day length in September is 12h and 29min.

When is the sunrise / sunset in September in Cedar Grove?

In September, on the first day of the month, sunrise is at 6:15 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:33 pm CDT.

How many hours of sunshine does Cedar Grove have in September?

In September, the average sunshine duration is 9.2h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from 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
Cedar Grove, WI

Average temperature in September - Cedar Grove, WI
  • Average high temperature in September: 67.3°F

The warmest month (with the highest average high temperature) is August (73.9°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in September: 57.6°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

Average pressure in September
Cedar Grove, WI

Average pressure in September - Cedar Grove, WI
  • Average pressure in September: 30.03"Hg

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

Average wind speed in September
Cedar Grove, WI

Average wind speed in September - Cedar Grove, WI
  • Average wind speed in September: 10.1mph

The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (8.4mph).

Average humidity in September
Cedar Grove, WI

Average humidity in September - Cedar Grove, WI
  • Average humidity in September: 79%

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are October and November (77%).

Average rainfall in September
Cedar Grove, WI

Average rainfall in September - Cedar Grove, WI
  • Average rainfall in September: 2.56"

The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is February (1.14").

Average rainfall days in September
Cedar Grove, WI

Average rainfall days in September - Cedar Grove, WI
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is February (4.3 days).

Average snowfall in September
Cedar Grove, WI

Average snowfall in September - Cedar Grove, WI
  • Average snowfall in September: 0"

The month with the highest snowfall is December (2.99").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Cedar Grove, WI

Average snowfall days in September - Cedar Grove, WI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Cedar Grove, WI

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

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 9h and 1min

The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in September
Cedar Grove, WI

Average sunshine days in September - Cedar Grove, WI
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is December (16.2 days).
The month with the least sunshine days is July (11.1 days).

Average UV index in September
Cedar Grove, WI

Average UV index in September - Cedar Grove, WI
  • Average UV index in September: 4

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

Average cloud cover in September
Cedar Grove, WI

Average cloud cover in September - Cedar Grove, WI
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in September
Cedar Grove, WI

Average visibility in September - Cedar Grove, WI
  • Average visibility in September: 6mi

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

Cedar Grove, Wisconsin, USA

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