September weather forecastHanover, WI
September
Weather in September
September, the first month of the autumn in Hanover, is still a pleasant month, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 72°F (22.2°C).Temperature
September sees a slight reduction in average high-temperature, with a shift from a warm 77.5°F (25.3°C) in August to a pleasant 72°F (22.2°C). Throughout September, Hanover experiences a low-temperature average of 52.9°F (11.6°C).Humidity
The average relative humidity in September is 81%.Rainfall
In September, the rain falls for 7.8 days. Throughout September, 0.67" (17mm) of precipitation is accumulated. Throughout the year, there are 95.8 rainfall days, and 7.68" (195mm) of precipitation is accumulated.Snowfall
In Hanover, Wisconsin, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September in Hanover, sunrise is at 6:22 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:39 pm CDT.
Sunshine
The average sunshine in September in Hanover is 8.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hanover, WI
- Average high temperature in September: 72°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in September
Hanover, WI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Hanover, WI
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in September
Hanover, WI
- Average humidity in September: 81%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and October (76%).
Average rainfall in September
Hanover, WI
- Average rainfall in September: 0.67"
The wettest month (with the highest rainfall) is June (1.14").
The driest months (with the least rainfall) are January, February and December (0.35").
Average rainfall days in September
Hanover, WI
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is May (13.1 days).
The month with the least rainy days is January (2.6 days).
Average snowfall in September
Hanover, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Hanover, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hanover, WI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 36min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Hanover, WI
- Average sunshine days in September: 20.3 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (14 days).
Average UV index in September
Hanover, WI
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Hanover, WI
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in September
Hanover, WI
- Average visibility in September: 5mi
The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).
