September weather forecastDeer Park, WI
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Deer Park, Wisconsin, with an average temperature ranging between min 51.1°F (10.6°C) and max 69.6°F (20.9°C).Temperature
Deer Park's transition into September involves a gentle shift in temperature, receding from a moderately hot 76.6°F (24.8°C) in August to an agreeable 69.6°F (20.9°C). In Deer Park, an average temperature of 51.1°F (10.6°C) is noted during September nights.Humidity
In September, the average relative humidity is 79%.Rainfall
In September, the rain falls for 12 days. Throughout September, 2.01" (51mm) of precipitation is accumulated. Throughout the year, in Deer Park, there are 124.4 rainfall days, and 22.64" (575mm) of precipitation is accumulated.Snowfall
In Deer Park, snow does not fall in June through September.Daylight
The average length of the day in September in Deer Park is 12h and 31min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:51 pm CDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
The average daily maximum UV index in September in Deer Park is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 4 in September leads to these guidelines:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Deer Park, WI
- Average high temperature in September: 69.6°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (18.9°F).
- Average low temperature in September: 51.1°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).
Average pressure in September
Deer Park, WI
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Deer Park, WI
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in September
Deer Park, WI
- Average humidity in September: 79%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Deer Park, WI
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is June (3.66").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in September
Deer Park, WI
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is June (17.5 days).
The month with the least rainy days is January (2.3 days).
Average snowfall in September
Deer Park, WI
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.84").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Deer Park, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Deer Park, WI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 30min
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 54min).
Average sunshine days in September
Deer Park, WI
- Average sunshine days in September: 16 days
The months with the most sunshine days are October and December (16.1 days).
The month with the least sunshine days is June (10 days).
Average UV index in September
Deer Park, WI
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Deer Park, WI
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Deer Park, WI
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
