September weather forecast
Old Fort, WI

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Weather in September

September, the first month of the autumn in Old Fort, is still a refreshing month, with an average temperature varying between 65.3°F (18.5°C) and 52.5°F (11.4°C).

Temperature

The commencement of September indicates a gentle shift in the average high-temperature, receding from August's agreeable 72.5°F (22.5°C) to a comfortable 65.3°F (18.5°C). September's nights in Old Fort observe an average temperature of 52.5°F (11.4°C).

Humidity

In Old Fort, the average relative humidity in September is 78%.

Rainfall

In Old Fort, in September, during 12.5 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. In Old Fort, Wisconsin, during the entire year, the rain falls for 127.9 days and collects up to 22.56" (573mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day in Old Fort is 12h and 32min.
On the first day of the month, sunrise is at 6:23 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:44 pm CDT.

Sunshine

The average sunshine in September is 8.9h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Enhance your sun protection with tightly woven, yet airy clothing.
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Frequently asked questions

What is the average September temperature in Old Fort?

In September, in Old Fort, the average high-temperature is 65.3°F (18.5°C), and the average low-temperature is 52.5°F (11.4°C).

What is the average humidity in September in Old Fort?

In Old Fort, Wisconsin, the average relative humidity in September is 78%.

How much does it rain in Old Fort in September?

In September, in Old Fort, the rain falls for 12.5 days. Throughout September, 1.77" (45mm) of precipitation is accumulated.

When it does not snow in Old Fort?

In Old Fort, Wisconsin, snow does not fall in June through September.

Does it snow in Old Fort in September?

In Old Fort, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Old Fort have in September?

The average day length in September in Old Fort is 12h and 32min.

When are sunrise and sunset in September in Old Fort?

On the first day of September in Old Fort, Wisconsin, sunrise is at 6:23 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:44 pm CDT.

How many hours of sunshine does Old Fort have in September?

The average sunshine duration in September in Old Fort, Wisconsin, is 8.9h.

What is the UV index intensity in September in Old Fort?

In September, the average daily maximum UV index in Old Fort, Wisconsin, is 4. A UV Index of 3 to 5 symbolizes a medium health risk 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
Old Fort, WI

Average temperature in September - Old Fort, WI
  • Average high temperature in September: 65.3°F

The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (20.3°F).

  • Average low temperature in September: 52.5°F

The month with the highest average low temperature is August (57.9°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in September
Old Fort, WI

Average pressure in September - Old Fort, WI
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in September
Old Fort, WI

Average wind speed in September - Old Fort, WI
  • Average wind speed in September: 8.7mph

The windiest months (with the highest average wind speed) are January and December (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

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Average humidity in September
Old Fort, WI

Average humidity in September - Old Fort, WI
  • Average humidity in September: 78%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is May (75%).

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Average rainfall in September
Old Fort, WI

Average rainfall in September - Old Fort, WI
  • Average rainfall in September: 1.77"

The wettest months (with the highest rainfall) are May and July (2.56").
The driest months (with the least rainfall) are January and February (1.06").

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Average rainfall days in September
Old Fort, WI

Average rainfall days in September - Old Fort, WI
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (3.6 days).

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Average snowfall in September
Old Fort, WI

Average snowfall in September - Old Fort, WI
  • Average snowfall in September: 0"

The month with the highest snowfall is January (6.85").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Old Fort, WI

Average snowfall days in September - Old Fort, WI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (22.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Old Fort, WI

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

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

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

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Average sunshine days in September
Old Fort, WI

Average sunshine days in September - Old Fort, 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 December (8.7 days).

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Average UV index in September
Old Fort, WI

Average UV index in September - Old Fort, 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, November and December (UV index 1).

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Average cloud cover in September
Old Fort, WI

Average cloud cover in September - Old Fort, WI
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in September
Old Fort, WI

Average visibility in September - Old Fort, WI
  • Average visibility in September: 6mi

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

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Old Fort, Wisconsin, USA

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