September weather forecastSlinger, WI
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Slinger, Wisconsin, with temperature in the range of an average low of 53.2°F (11.8°C) and an average high of 70°F (21.1°C).Temperature
Slinger's September weather shows a modest shift in high-temperatures, falling from August's moderately hot 76.6°F (24.8°C) to an agreeable 70°F (21.1°C). An average temperature of 53.2°F (11.8°C) is recorded during the nights in September.Humidity
The average relative humidity in September is 81%.Rainfall
In Slinger, in September, during 13 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, there are 141.6 rainfall days, and 25.67" (652mm) of precipitation is accumulated.Snowfall
In Slinger, snow does not fall in June through September.Daylight
In Slinger, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:18 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:35 pm CDT.
Sunshine
The average sunshine in September in Slinger is 9h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 3 during September leads to these instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Slinger, WI
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (23.9°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in September
Slinger, WI
- Average pressure in September: 30.03"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
Slinger, WI
- Average wind speed in September: 7.8mph
The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in September
Slinger, WI
- Average humidity in September: 81%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Slinger, WI
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is June (3.11").
The driest months (with the least rainfall) are February and December (1.18").
Average rainfall days in September
Slinger, WI
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Slinger, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Slinger, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Slinger, 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 0min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Slinger, WI
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in September
Slinger, 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
Slinger, WI
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July, August and September (Cloud cover 31).
Average visibility in September
Slinger, WI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
