September weather forecastCataract, WI
September
Weather in September
September, the first month of the autumn in Cataract, is still a pleasant month, with temperature in the range of an average high of 70.9°F (21.6°C) and an average low of 50.9°F (10.5°C).Temperature
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a moderately hot 77.5°F (25.3°C) in August to a pleasant 70.9°F (21.6°C). Cataract anticipates an average minimum temperature of 50.9°F (10.5°C) in the month of September.Humidity
The average relative humidity in September is 80%.Rainfall
In Cataract, during September, the rain falls for 12.6 days and regularly aggregates up to 2.36" (60mm) of precipitation. Throughout the year, there are 142.9 rainfall days, and 29.13" (740mm) of precipitation is accumulated.Snowfall
In Cataract, snow does not fall in June through September.Daylight
In Cataract, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:38 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 8.7h.UV index
In Cataract, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 3 in September translates into these instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cataract, WI
- Average high temperature in September: 70.9°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 (21.6°F).
- Average low temperature in September: 50.9°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 (8.1°F).
Average pressure in September
Cataract, 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 (29.89"Hg).
Average wind speed in September
Cataract, WI
- Average wind speed in September: 7.2mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in September
Cataract, WI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (90%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in September
Cataract, WI
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is June (4.57").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in September
Cataract, WI
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Cataract, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.85").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Cataract, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cataract, 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 42min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Cataract, WI
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is October (15.6 days).
The month with the least sunshine days is June (8.4 days).
Average UV index in September
Cataract, 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, November and December (UV index 1).
Average cloud cover in September
Cataract, 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 34).
Average visibility in September
Cataract, WI
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January and February (4mi).





