Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September marks a gentle change in average high-temperature, declining from August's warm 75.7°F (24.3°C) to a comfortable 67.6°F (19.8°C). In Catawba, the average nighttime temperature during September is a chilly 48.6°F (9.2°C).Humidity
The average relative humidity in September is 80%.Rainfall
In Catawba, during September, the rain falls for 12.8 days and regularly aggregates up to 1.46" (37mm) of precipitation. Throughout the year, there are 133.3 rainfall days, and 23.27" (591mm) of precipitation is accumulated.Snowfall
In Catawba, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:43 pm CDT.
Sunshine
In Catawba, the average sunshine in September is 8h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 3 during September leads to these advisories:
Be vigilant - Suggestions to stave off sun damage are provided. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Catawba have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Catawba, WI
- Average high temperature in September: 67.6°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 (18.1°F).
- Average low temperature in September: 48.6°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 (5.9°F).
Average pressure in September
Catawba, 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
Catawba, WI
- Average wind speed in September: 7.5mph
The windiest months (with the highest average wind speed) are January, April and November (8.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Catawba, WI
- Average humidity in September: 80%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (73%).
Average rainfall in September
Catawba, WI
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is June (2.99").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in September
Catawba, WI
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is June (16.9 days).
The months with the least rainy days are January and February (3.3 days).
Average snowfall in September
Catawba, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (8.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Catawba, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Catawba, WI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 12min).
Average sunshine days in September
Catawba, WI
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is September (13.7 days).
The month with the least sunshine days is January (7.5 days).
Average UV index in September
Catawba, WI
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Catawba, WI
- Average cloud cover in September: 43
The months with the most cloud cover are January and February (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in September
Catawba, 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 and December (4mi).
Catawba, Wisconsin, USA
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