September weather forecast
Fish Creek, WI

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Weather in September

September, the first month of the autumn in Fish Creek, is still a comfortable month, with an average temperature varying between 64.4°F (18°C) and 57.6°F (14.2°C).

Temperature

The shift into September reveals an average high-temperature of a comfortable 64.4°F (18°C), closely mirroring August's climate. September nights reveal a minor deviation from daytime highs, with a mean low-temperature of 57.6°F (14.2°C).

Humidity

The average relative humidity in September is 79%.

Rainfall

In Fish Creek, during September, the rain falls for 12.9 days and regularly aggregates up to 2.24" (57mm) of precipitation. In Fish Creek, during the entire year, the rain falls for 141.7 days and collects up to 26.93" (684mm) of precipitation.

Snowfall

In Fish Creek, 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 6:11 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:46 am and sunset at 6:30 pm CDT.

Sunshine

The average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 3 in September interprets into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Jun 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

The average high-temperature and low-temperature during September are 64.4°F (18°C) and 57.6°F (14.2°C) respectively.

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 12.9 days. Throughout September, 2.24" (57mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Fish Creek have in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:11 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:30 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.8h.

How high is the UV index in September?

In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's 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
Fish Creek, WI

Average temperature in September - Fish Creek, WI
  • Average high temperature in September: 64.4°F

The warmest month (with the highest average high temperature) is August (69.6°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in September: 57.6°F

The month with the highest average low temperature is August (63°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).

Average pressure in September
Fish Creek, WI

Average pressure in September - Fish Creek, WI
  • Average pressure in September: 30.01"Hg

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

Average wind speed in September
Fish Creek, WI

Average wind speed in September - Fish Creek, WI
  • Average wind speed in September: 12mph

The windiest month (with the highest average wind speed) is December (15.5mph).
The calmest months (with the lowest average wind speed) are June and July (9.6mph).

Average humidity in September
Fish Creek, WI

Average humidity in September - Fish Creek, WI
  • Average humidity in September: 79%

The months with the highest relative humidity are January and June (84%).
The month with the lowest relative humidity is November (76%).

Average rainfall in September
Fish Creek, WI

Average rainfall in September - Fish Creek, WI
  • Average rainfall in September: 2.24"

The wettest month (with the highest rainfall) is October (3.07").
The driest months (with the least rainfall) are January and February (1.38").

Average rainfall days in September
Fish Creek, WI

Average rainfall days in September - Fish Creek, WI
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is August (15.6 days).
The month with the least rainy days is February (4.8 days).

Average snowfall in September
Fish Creek, WI

Average snowfall in September - Fish Creek, WI
  • Average snowfall in September: 0"

The month with the highest snowfall is February (4.49").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Fish Creek, WI

Average snowfall days in September - Fish Creek, WI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Fish Creek, WI

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in September
Fish Creek, WI

Average sunshine days in September - Fish Creek, WI
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is January (8.3 days).

Average UV index in September
Fish Creek, WI

Average UV index in September - Fish Creek, WI
  • Average UV index in September: 3

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

Average cloud cover in September
Fish Creek, WI

Average cloud cover in September - Fish Creek, WI
  • Average cloud cover in September: 31

The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in September
Fish Creek, WI

Average visibility in September - Fish Creek, WI
  • Average visibility in September: 6mi

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

Fish Creek, Wisconsin, USA

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