September weather forecastGalloway, WI
September
Weather in September
September, the first month of the autumn in Galloway, is still a pleasant month, with an average temperature varying between 50.9°F (10.5°C) and 68.9°F (20.5°C).Temperature
As Galloway enters September, the average high-temperature subtly lowers from the a moderately hot 76.1°F (24.5°C) of August to a pleasant 68.9°F (20.5°C). During September, the temperature tends to dip to an average of 50.9°F (10.5°C) at night.Humidity
In Galloway, the average relative humidity in September is 80%.Rainfall
In Galloway, during September, the rain falls for 12.3 days and regularly aggregates up to 1.77" (45mm) of precipitation. In Galloway, during the entire year, the rain falls for 123.2 days and collects up to 23.54" (598mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Galloway, Wisconsin, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:20 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:38 pm CDT.
Sunshine
The average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In September, a regular UV index of 3 translates into these guidelines:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Galloway, WI
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (20.5°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in September
Galloway, 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
Galloway, WI
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (7.2mph).
Average humidity in September
Galloway, 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 (76%).
Average rainfall in September
Galloway, WI
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in September
Galloway, WI
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in September
Galloway, WI
- Average snowfall in September: 0"
The month with the highest snowfall is December (5.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Galloway, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Galloway, WI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Galloway, WI
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (17 days).
The months with the least sunshine days are April, May and June (12.7 days).
Average UV index in September
Galloway, 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, November and December (UV index 1).
Average cloud cover in September
Galloway, WI
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in September
Galloway, WI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).
