September weather forecast
Donald, WI

Weather in September

September, the first month of the autumn in Donald, is also an agreeable month, with an average temperature ranging between max 68.9°F (20.5°C) and min 49.5°F (9.7°C).

Temperature

In September, the average high-temperature slightly decreases from a warm 76.6°F (24.8°C) in August to an agreeable 68.9°F (20.5°C). In September, the average low-temperature is 49.5°F (9.7°C).

Humidity

The average relative humidity in September in Donald is 80%.

Rainfall

In September, in Donald, Wisconsin, the rain falls for 13.2 days. Throughout September, 1.85" (47mm) of precipitation is accumulated. Throughout the year, there are 137.4 rainfall days, and 26.26" (667mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Donald, Wisconsin.

Daylight

In September, the average length of the day in Donald is 12h and 31min.
On the first day of the month, sunrise is at 6:25 am and sunset at 7:41 pm. On the last day of September, in Donald, sunrise is at 7:00 am and sunset at 6:46 pm CDT.

Sunshine

In Donald, the average sunshine in September is 8.4h.

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Donald?

In Donald, Wisconsin, in September, the average high-temperature is 68.9°F (20.5°C), and the average low-temperature is 49.5°F (9.7°C).

What is the average humidity in September in Donald?

In Donald, Wisconsin, the average relative humidity in September is 80%.

How many days does it rain in September in Donald?

In Donald, Wisconsin, in September, it is raining for 13.2 days, with typically 1.85" (47mm) of accumulated precipitation.

When it does not snow in Donald?

June through September are months without snowfall in Donald.

Does it snow in Donald in September?

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

How many hours of daylight does Donald have in September?

In Donald, Wisconsin, the average day length in September is 12h and 31min.

When are sunrise and sunset in September in Donald?

In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:41 pm. On the last day of the month, in Donald, sunrise is at 7:00 am and sunset at 6:46 pm CDT.

How many hours of sunshine does Donald have in September?

In Donald, the average sunshine duration in September is 8.4h.

What is the UV index reading in September in Donald?

In September, the average daily maximum UV index in Donald is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Donald, WI

Average temperature in September - Donald, WI
  • Average high temperature in September: 68.9°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (18.7°F).

  • Average low temperature in September: 49.5°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).

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Average pressure in September
Donald, WI

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

The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in September
Donald, WI

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

The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in September
Donald, WI

Average humidity in September - Donald, WI
  • Average humidity in September: 80%

The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (76%).

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Average rainfall in September
Donald, WI

Average rainfall in September - Donald, WI
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is June (4.06").
The driest month (with the least rainfall) is January (0.94").

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Average rainfall days in September
Donald, WI

Average rainfall days in September - Donald, WI
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (3.7 days).

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Average snowfall in September
Donald, WI

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

The month with the highest snowfall is February (7.44").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Donald, WI

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

The month with the highest number of snowfall days is January (17.8 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
Donald, WI

Average daylight in September / Average sunshine in September - Donald, WI
  • Average daylight in September: 12h and 31min

The month with the longest days is June (Average daylight: 15h and 35min).
The month with the shortest days is December (Average daylight: 8h and 49min).

  • Average sunshine in September: 8h and 24min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 48min).

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Average sunshine days in September
Donald, WI

Average sunshine days in September - Donald, WI
  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is October (15.6 days).
The month with the least sunshine days is June (9.3 days).

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Average UV index in September
Donald, WI

Average UV index in September - Donald, WI
  • Average UV index in September: 4

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).

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Average cloud cover in September
Donald, WI

Average cloud cover in September - Donald, WI
  • Average cloud cover in September: 38

The months with the most cloud cover are January and February (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 36).

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Average visibility in September
Donald, WI

Average visibility in September - Donald, WI
  • Average visibility in September: 5mi

The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January and February (4mi).

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