September weather forecastSaint Germain, WI
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Saint Germain, Wisconsin, with an average temperature ranging between max 66.7°F (19.3°C) and min 48°F (8.9°C).Temperature
In Saint Germain, the average high-temperature in September slightly decreases from a moderately hot 74.5°F (23.6°C) in August to a comfortable 66.7°F (19.3°C). September generally records an average low-temperature of 48°F (8.9°C).Humidity
In September, the average relative humidity is 80%.Rainfall
In Saint Germain, during September, the rain falls for 12.1 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Saint Germain, during the entire year, the rain falls for 123.5 days and collects up to 23.11" (587mm) of precipitation.Snowfall
In Saint Germain, snow does not fall in June through September.Daylight
In Saint Germain, the average length of the day in September is 12h and 31min.On the first day of September, 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.
Sunshine
The average sunshine in September is 7.6h.UV index
In Saint Germain, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 3 in September transforms into this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in September /
Average sunshine in September
Saint Germain, WI
- Average daylight in September: 12h and 30min
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 36min
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).
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).
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).
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).
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).
