September weather forecastPine River, WI
September
Weather in September
September, the first month of the autumn in Pine River, is still a pleasant month, with an average temperature varying between 51.6°F (10.9°C) and 69.6°F (20.9°C).Temperature
As August makes way for September, Pine River's average high-temperature eases from a moderately hot 77.2°F (25.1°C) to a pleasant 69.6°F (20.9°C). During the nights in September, an average low-temperature of 51.6°F (10.9°C) is observed.Humidity
In Pine River, Wisconsin, the average relative humidity in September is 80%.Rainfall
In Pine River, in September, during 12 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Pine River, during the entire year, the rain falls for 131 days and collects up to 26.42" (671mm) of precipitation.Snowfall
In Pine River, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 30min.On the first day of September in Pine River, sunrise is at 6:20 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:38 pm CDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In Pine River, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 3 during September morphs into the following directions:
Adopt protective measures - Suggestions to resist sunburn are offered. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Pine River, 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 (21.7°F).
- Average low temperature in September: 51.6°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (10.4°F).
Average pressure in September
Pine River, WI
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Pine River, WI
- Average wind speed in September: 7.7mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in September
Pine River, WI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Pine River, WI
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is May (3.43").
The driest months (with the least rainfall) are January and February (1.22").
Average rainfall days in September
Pine River, WI
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Pine River, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Pine River, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Pine River, WI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Pine River, WI
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is November (16.6 days).
The months with the least sunshine days are April and June (11.9 days).
Average UV index in September
Pine River, 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
Pine River, WI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Pine River, 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).





