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 September, the average high-temperature marginally decreases from a warm 79.7°F (26.5°C) in August to a pleasant 72.5°F (22.5°C). Florence, during the month of September, experiences an average low-temperature of 53.2°F (11.8°C).Humidity
The average relative humidity in September is 70%.Rainfall
In Florence, during September, the rain falls for 10.7 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, there are 121.2 rainfall days, and 23.35" (593mm) of precipitation is accumulated.Snowfall
In Florence, snow does not fall in June through September.Daylight
In Florence, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:59 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:06 pm CDT.
Sunshine
In September, the average sunshine is 9.1h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The UV index of 4 in September translates into these instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in Florence in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Florence have in September?
What is the UV index reading in September?
Average temperature in September
Florence, MN
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (20.8°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).
Average pressure in September
Florence, MN
- Average pressure in September: 29.98"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Florence, MN
- Average wind speed in September: 9.2mph
The windiest months (with the highest average wind speed) are February, April and November (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in September
Florence, MN
- Average humidity in September: 70%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (67%).
Average rainfall in September
Florence, MN
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in September
Florence, MN
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is February (1.8 days).
Average snowfall in September
Florence, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Florence, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 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, MN
- Average daylight in September: 12h and 3min
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: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Florence, MN
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is June (8 days).
Average UV index in September
Florence, MN
- Average UV index in September: 4
The months with the highest UV index are June and 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
Florence, MN
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Florence, MN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Florence, Minnesota, USA
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