September weather forecast
Saint Germain, WI

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Weather in September

The first month of the autumn, September, is still a refreshing month in Saint Germain, Wisconsin, with an average temperature fluctuating between 48°F (8.9°C) and 66.7°F (19.3°C).

Temperature

Start of September brings a slight shift in the average high-temperature, dipping a bit from August's warm 74.5°F (23.6°C) to a comfortable 66.7°F (19.3°C). Saint Germain anticipates an average minimum temperature of 48°F (8.9°C) in the month of September.

Humidity

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

Rainfall

In September, in Saint Germain, the rain falls for 12.1 days. Throughout September, 1.57" (40mm) of precipitation is accumulated. Throughout the year, in Saint Germain, Wisconsin, there are 123.5 rainfall days, and 23.11" (587mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Saint Germain, the average length of the day in September is 12h and 31min.
On the first day of the month, sunrise is at 6:19 am and sunset at 7:35 pm. On the last day of September, in Saint Germain, sunrise is at 6:56 am and sunset at 6:39 pm CDT.

Sunshine

In September, the average sunshine in Saint Germain is 7.6h.

UV index

In Saint Germain, Wisconsin, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 3 in September translates into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the temperature in September in Saint Germain?

In Saint Germain, 66.7°F (19.3°C) is the average high-temperature and 48°F (8.9°C) is the average low-temperature during September.

What is the average humidity in September in Saint Germain?

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

How much does it rain in Saint Germain in September?

In Saint Germain, Wisconsin, during September, the rain falls for 12.1 days and regularly aggregates up to 1.57" (40mm) of precipitation.

When it does not snow in Saint Germain?

In Saint Germain, snow does not fall in June through September.

Does it snow in Saint Germain in September?

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

How many hours of daylight does Saint Germain have in September?

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

When is the sunrise / sunset in September in Saint Germain?

On the first day of September in Saint Germain, Wisconsin, sunrise is at 6:19 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:39 pm CDT.

How long on average sun shines in September in Saint Germain?

The average sunshine duration in September in Saint Germain, Wisconsin, is 7.6h.

How high is the UV index in September in Saint Germain?

In Saint Germain, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Saint Germain, WI

Average temperature in September - Saint Germain, WI
  • Average high temperature in September: 66.7°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (18.9°F).

  • Average low temperature in September: 48°F

The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).

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Average pressure in September
Saint Germain, WI

Average pressure in September - Saint Germain, 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).

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Average wind speed in September
Saint Germain, WI

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

The windiest month (with the highest average wind speed) is November (8.6mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

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Average humidity in September
Saint Germain, WI

Average humidity in September - Saint Germain, 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 (71%).

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Average rainfall in September
Saint Germain, WI

Average rainfall in September - Saint Germain, WI
  • Average rainfall in September: 1.57"

The wettest months (with the highest rainfall) are April and May (2.64").
The driest month (with the least rainfall) is January (1.26").

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Average rainfall days in September
Saint Germain, WI

Average rainfall days in September - Saint Germain, WI
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is January (2.8 days).

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Average snowfall in September
Saint Germain, WI

Average snowfall in September - Saint Germain, WI
  • Average snowfall in September: 0"

The month with the highest snowfall is December (9.69").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Saint Germain, WI

Average snowfall days in September - Saint Germain, WI
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (24.9 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in September /
Average sunshine in September
Saint Germain, WI

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

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in September: 7h and 4min

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 0min).

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Average sunshine days in September
Saint Germain, WI

Average sunshine days in September - Saint Germain, WI
  • Average sunshine days in September: 15 days

The month with the most sunshine days is September (15 days).
The month with the least sunshine days is February (6.4 days).

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Average UV index in September
Saint Germain, WI

Average UV index in September - Saint Germain, WI
  • Average UV index in September: 3

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

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Average cloud cover in September
Saint Germain, WI

Average cloud cover in September - Saint Germain, WI
  • Average cloud cover in September: 46

The months with the most cloud cover are January and February (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 39).

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Average visibility in September
Saint Germain, WI

Average visibility in September - Saint Germain, WI
  • Average visibility in September: 5mi

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

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Saint Germain, Wisconsin, USA

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