September weather forecastLiberty, WI
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Liberty, Wisconsin, with an average temperature fluctuating between 50.9°F (10.5°C) and 71.2°F (21.8°C).Temperature
The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a moderately hot 78.3°F (25.7°C) to an agreeable 71.2°F (21.8°C). An average minimum temperature of 50.9°F (10.5°C) is recorded during the month of September.Humidity
In September, the average relative humidity is 80%.Rainfall
In September, the rain falls for 12.1 days. Throughout September, 2.48" (63mm) of precipitation is accumulated. In Liberty, during the entire year, the rain falls for 130.6 days and collects up to 28.58" (726mm) of precipitation.Snowfall
June through September are months without snowfall in Liberty.Daylight
In Liberty, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:45 pm CDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In Liberty, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 3 in September translates into this advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Liberty, WI
- Average high temperature in September: 71.2°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (22.1°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).
Average pressure in September
Liberty, WI
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Liberty, WI
- Average wind speed in September: 7.2mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in September
Liberty, WI
- Average humidity in September: 80%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Liberty, WI
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is June (4.8").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in September
Liberty, WI
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in September
Liberty, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.38").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Liberty, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Liberty, 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: 9h and 0min).
- Average sunshine in September: 8h and 36min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in September
Liberty, WI
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is December (17.4 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in September
Liberty, WI
- Average UV index in September: 3
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
Liberty, WI
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Liberty, WI
- Average visibility in September: 5mi
The months with the highest visibility are April, May, October and November (6mi).
The month with the lowest visibility is January (4mi).
