September weather forecastMather, WI
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Mather, Wisconsin, with an average temperature ranging between max 70.7°F (21.5°C) and min 51.4°F (10.8°C).Temperature
September signifies a gentle decline in Mather's average high-temperature, easing from a moderately hot 77.9°F (25.5°C) in August to a pleasant 70.7°F (21.5°C). Mather experiences a mean low-temperature of 51.4°F (10.8°C) during September.Humidity
In Mather, the average relative humidity in September is 79%.Rainfall
In Mather, in September, it is raining for 12 days, with typically 2.13" (54mm) of accumulated precipitation. In Mather, during the entire year, the rain falls for 136.8 days and collects up to 27.36" (695mm) of precipitation.Snowfall
In Mather, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 30min.On the first day of September, sunrise is at 6:25 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:43 pm CDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 3 during September, leads to the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mather, WI
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (21.7°F).
- Average low temperature in September: 51.4°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in September
Mather, WI
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Mather, WI
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Mather, WI
- Average humidity in September: 79%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Mather, WI
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is June (4.06").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in September
Mather, WI
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in September
Mather, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Mather, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mather, 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 48min
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 6min).
Average sunshine days in September
Mather, WI
- Average sunshine days in September: 16.4 days
The months with the most sunshine days are September and November (16.4 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in September
Mather, 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
Mather, WI
- Average cloud cover in September: 35
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
Mather, WI
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
