September weather forecast
Shorewood, WI

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Weather in September

The first month of the autumn, September, is still a pleasant month in Shorewood, Wisconsin, with temperature in the range of an average low of 58.1°F (14.5°C) and an average high of 69.4°F (20.8°C).

Temperature

As August transitions into September, Shorewood sees a gentle drop in the average high-temperature, transitioning from a warm 75.6°F (24.2°C) to a pleasant 69.4°F (20.8°C). Shorewood's average low-temperature during September nights is observed to be a mild 58.1°F (14.5°C).

Humidity

The average relative humidity in September in Shorewood is 77%.

Rainfall

In Shorewood, Wisconsin, in September, during 11.2 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. In Shorewood, during the entire year, the rain falls for 129.5 days and collects up to 18.62" (473mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In September, the average length of the day in Shorewood is 12h and 29min.
On the first day of September, sunrise is at 6:16 am and sunset at 7:25 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 in Shorewood is 9.3h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 4 during September translates into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Shorewood?

The high-temperature in Shorewood during September is 69.4°F (20.8°C) and the low-temperature is 58.1°F (14.5°C).

What is the average humidity in September in Shorewood?

In September, the average relative humidity is 77%.

How much does it rain in Shorewood in September?

In Shorewood, in September, it is raining for 11.2 days, with typically 1.54" (39mm) of accumulated precipitation.

When it does not snow in Shorewood?

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

Does it snow in Shorewood in September?

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

What is the average length of the day in September in Shorewood?

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

What time are sunrise and sunset in September in Shorewood?

In September, on the first day of the month, sunrise is at 6:16 am and sunset at 7:25 pm. On the last day of the month, in Shorewood, sunrise is at 6:48 am and sunset at 6:33 pm CDT.

How many hours of sunshine does Shorewood have in September?

The average sunshine duration in September in Shorewood, Wisconsin, is 9.3h.

How high is the UV index in September in Shorewood?

The average daily maximum UV index in September in Shorewood is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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
Shorewood, WI

Average temperature in September - Shorewood, WI
  • Average high temperature in September: 69.4°F

The warmest month (with the highest average high temperature) is July (75.7°F).
The month with the lowest average high temperature is January (26.8°F).

  • Average low temperature in September: 58.1°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in September
Shorewood, WI

Average pressure in September - Shorewood, WI
  • Average pressure in September: 30.03"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 (29.92"Hg).

Average wind speed in September
Shorewood, WI

Average wind speed in September - Shorewood, WI
  • Average wind speed in September: 9.3mph

The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).

Average humidity in September
Shorewood, WI

Average humidity in September - Shorewood, WI
  • Average humidity in September: 77%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (75%).

Average rainfall in September
Shorewood, WI

Average rainfall in September - Shorewood, WI
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is December (0.71").

Average rainfall days in September
Shorewood, WI

Average rainfall days in September - Shorewood, WI
  • Average rainfall days in September: 11.2 days

The months with the highest number of rainy days are May, June and July (15.2 days).
The month with the least rainy days is February (4.5 days).

Average snowfall in September
Shorewood, WI

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

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Shorewood, WI

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

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Shorewood, 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: 9h and 2min

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
Shorewood, WI

Average sunshine days in September - Shorewood, WI
  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in September
Shorewood, WI

Average UV index in September - Shorewood, 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 and December (UV index 1).

Average cloud cover in September
Shorewood, WI

Average cloud cover in September - Shorewood, WI
  • Average cloud cover in September: 28

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in September
Shorewood, WI

Average visibility in September - Shorewood, 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).

Shorewood, Wisconsin, USA

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