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 in Winona, Minnesota, reveals a small adjustment in temperature, transitioning from an average high of a warm 77°F (25°C) in August to a pleasant 70.7°F (21.5°C). Winona's average low-temperature in the month of September is recorded at a cool 51.3°F (10.7°C).Humidity
In Winona, the average relative humidity in September is 80%.Rainfall
In Winona, in September, it is raining for 12.8 days, with typically 2.09" (53mm) of accumulated precipitation. In Winona, during the entire year, the rain falls for 132.9 days and collects up to 24.88" (632mm) of precipitation.Snowfall
In Winona, snow does not fall in June through September.Daylight
The average length of the day in September in Winona is 12h and 30min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:42 pm. On the last day of September, in Winona, sunrise is at 7:04 am and sunset at 6:48 pm CDT.
Sunshine
In Winona, Minnesota, the average sunshine in September is 8.6h.UV index
In Winona, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 4 in September translates into this advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What is the temperature in September in Winona?
What is the average humidity in September in Winona?
How much does it rain in Winona in September?
When it does not snow in Winona?
Does it snow in Winona in September?
How many hours of daylight does Winona have in September?
When is the sunrise / sunset in September in Winona?
How many hours of sunshine does Winona have in September?
How high is the UV index in September in Winona?
Average temperature in September
Winona, MN
- Average high temperature in September: 70.7°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 (20.8°F).
- Average low temperature in September: 51.3°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 (7.9°F).
Average pressure in September
Winona, MN
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Winona, MN
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Winona, MN
- Average humidity in September: 80%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (76%).
Average rainfall in September
Winona, MN
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is June (4.49").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in September
Winona, MN
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is June (18.7 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Winona, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Winona, MN
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Winona, MN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Winona, MN
- Average sunshine days in September: 15 days
The month with the most sunshine days is December (18.4 days).
The month with the least sunshine days is June (9.4 days).
Average UV index in September
Winona, MN
- Average UV index in September: 4
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
Winona, MN
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Winona, MN
- 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, February, March, July, August, September and December (5mi).
Winona, Minnesota, USA
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