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
In Florence, entering September brings a subtle temperature decrement, reducing from August's moderately hot 75.4°F (24.1°C) to an enjoyable 67.5°F (19.7°C). In Florence, an average temperature of 48.6°F (9.2°C) is noted during September nights.Humidity
The average relative humidity in September is 81%.Rainfall
In Florence, in September, it is raining for 11.5 days, with typically 1.89" (48mm) of accumulated precipitation. Throughout the year, there are 125.7 rainfall days, and 21.06" (535mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 31min.On the first day of September, sunrise is at 6:14 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:34 pm CDT.
Sunshine
In Florence, the average sunshine in September is 8h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Ensure safety - Sun damage prevention is strongly urged. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September in Florence?
When it does not snow?
Does it snow in September?
What is the average length of the day 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
Florence, WI
- Average high temperature in September: 67.5°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (20.8°F).
- Average low temperature in September: 48.6°F
The month with the highest average low temperature is July (56.7°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in September
Florence, WI
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Florence, WI
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Florence, WI
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Florence, WI
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is June (2.52").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in September
Florence, WI
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in September
Florence, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (7.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Florence, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Florence, WI
- Average daylight in September: 12h and 3min
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: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in September
Florence, WI
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is August (16.1 days).
The month with the least sunshine days is January (11.9 days).
Average UV index in September
Florence, WI
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Florence, WI
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in September
Florence, WI
- Average visibility in September: 5mi
The months with the highest visibility are May, June, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Florence, Wisconsin, USA
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