Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The advent of September brings a slight shift in average high-temperature, moving from a warm 77.4°F (25.2°C) in August to an agreeable 70.7°F (21.5°C). During the month of September, Green Lake anticipates a mean low-temperature of 51.4°F (10.8°C).Humidity
In September, the average relative humidity is 81%.Rainfall
In Green Lake, in September, it is raining for 11.9 days, with typically 2.05" (52mm) of accumulated precipitation. In Green Lake, during the entire year, the rain falls for 139.4 days and collects up to 26.97" (685mm) of precipitation.Snowfall
In Green Lake, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:53 am and sunset at 6:37 pm CDT.
Sunshine
In Green Lake, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index in Green Lake is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 3 during September translates into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Green Lake in September?
What is the average humidity in September in Green Lake?
How many days does it rain in September in Green Lake?
When it does not snow in Green Lake?
Does it snow in Green Lake in September?
How many hours of daylight does Green Lake have in September?
When are sunrise and sunset in September in Green Lake?
How many hours of sunshine does Green Lake have in September?
What is the UV index intensity in September in Green Lake?
Average temperature in September
Green Lake, WI
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in September: 51.4°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
Green Lake, WI
- Average pressure in September: 30.03"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
Green Lake, WI
- Average wind speed in September: 7.7mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in September
Green Lake, WI
- Average humidity in September: 81%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Green Lake, WI
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is June (3.5").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days in September
Green Lake, WI
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in September
Green Lake, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Green Lake, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Green Lake, WI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Green Lake, WI
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is September (16.6 days).
The month with the least sunshine days is April (11 days).
Average UV index in September
Green Lake, 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, February and December (UV index 1).
Average cloud cover in September
Green Lake, 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
Green Lake, WI
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, August, October and November (6mi).
The months with the lowest visibility are January, February, July, September and December (5mi).
Green Lake, Wisconsin, USA
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