September weather forecastHortonville, WI
September
Weather in September
September, the first month of the autumn in Hortonville, is also an agreeable month, with temperature in the range of an average high of 70.5°F (21.4°C) and an average low of 51.4°F (10.8°C).Temperature
With the onset of September, the average high-temperature subtly recedes from August's moderately hot 77.5°F (25.3°C) to a pleasant 70.5°F (21.4°C). In Hortonville, September's nights observe an average temperature dip to a fresh 51.4°F (10.8°C).Humidity
In Hortonville, the average relative humidity in September is 79%.Rainfall
In Hortonville, in September, it is raining for 12.6 days, with typically 1.85" (47mm) of accumulated precipitation. In Hortonville, during the entire year, the rain falls for 136.7 days and collects up to 26.61" (676mm) of precipitation.Snowfall
In Hortonville, snow does not fall in June through September.Daylight
In Hortonville, the average length of the day in September is 12h and 30min.On the first day of September in Hortonville, sunrise is at 6:18 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:36 pm CDT.
Sunshine
In Hortonville, Wisconsin, the average sunshine in September is 8.5h.UV index
In Hortonville, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 3 in September transforms into the following instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hortonville, WI
- Average high temperature in September: 70.5°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in September: 51.4°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in September
Hortonville, WI
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Hortonville, WI
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in September
Hortonville, WI
- Average humidity in September: 79%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Hortonville, WI
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in September
Hortonville, WI
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is July (17.3 days).
The months with the least rainy days are January and February (4.3 days).
Average snowfall in September
Hortonville, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.71").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Hortonville, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hortonville, WI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 30min).
Average sunshine days in September
Hortonville, WI
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in September
Hortonville, WI
- Average UV index in September: 3
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).
Average cloud cover in September
Hortonville, WI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Hortonville, WI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
