September weather forecastLymantown, WI
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Lymantown, Wisconsin, with an average temperature fluctuating between 48.4°F (9.1°C) and 67.3°F (19.6°C).Temperature
A moderate decline in average high-temperatures is noted in September, moving from a moderately hot 75.7°F (24.3°C) in August to an enjoyable 67.3°F (19.6°C). Throughout the month of September, Lymantown reports a steady low-temperature average of 48.4°F (9.1°C).Humidity
The average relative humidity in September in Lymantown is 80%.Rainfall
In Lymantown, in September, during 12.7 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. In Lymantown, during the entire year, the rain falls for 118.6 days and collects up to 21.85" (555mm) of precipitation.Snowfall
June through September are months without snowfall in Lymantown.Daylight
In Lymantown, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:39 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:43 pm CDT.
Sunshine
In September, the average sunshine in Lymantown is 7.8h.UV index
In September, the average daily maximum UV index in Lymantown is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Heed the precautions - Suggestions to avoid sunburn are made. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lymantown, WI
- Average high temperature in September: 67.3°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 (18°F).
- Average low temperature in September: 48.4°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).
Average pressure in September
Lymantown, WI
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Lymantown, WI
- Average wind speed in September: 7.5mph
The windiest months (with the highest average wind speed) are April and November (8.6mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in September
Lymantown, WI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Lymantown, WI
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in September
Lymantown, WI
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is June (15.3 days).
The months with the least rainy days are January and February (2.3 days).
Average snowfall in September
Lymantown, WI
- Average snowfall in September: 0"
The month with the highest snowfall is December (7.56").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Lymantown, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (21.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lymantown, WI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 0min).
Average sunshine days in September
Lymantown, WI
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is August (14.9 days).
The month with the least sunshine days is April (9.7 days).
Average UV index in September
Lymantown, WI
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Lymantown, WI
- Average cloud cover in September: 44
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in September
Lymantown, WI
- Average visibility in September: 5mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
