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
As Windsor enters September, the average high-temperature subtly lowers from the a warm 76.3°F (24.6°C) of August to an agreeable 69.1°F (20.6°C). An average nighttime temperature of 49.3°F (9.6°C) is recorded during September.Humidity
In September, the average relative humidity in Windsor is 79%.Rainfall
In September, the rain falls for 11.1 days. Throughout September, 1.65" (42mm) of precipitation is accumulated. Throughout the year, there are 138.6 rainfall days, and 24.88" (632mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Windsor.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:14 am and sunset at 7:24 pm. On the last day of September, sunrise is at 6:46 am and sunset at 6:31 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
The average daily maximum UV index in September in Windsor is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high UV index of 3 in September translates into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Frequently asked questions
What is the temperature in September in Windsor?
What is the average humidity in September in Windsor?
How many days does it rain in September in Windsor?
When it does not snow in Windsor?
Does it snow in Windsor in September?
How many hours of daylight does Windsor have in September?
When are sunrise and sunset in September in Windsor?
How many hours of sunshine does Windsor have in September?
How high is the UV index in September in Windsor?
Average temperature in September
Windsor, VT
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in September: 49.3°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in September
Windsor, VT
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Windsor, VT
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Windsor, VT
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in September
Windsor, VT
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is October (2.68").
The driest month (with the least rainfall) is January (1.57").
Average rainfall days in September
Windsor, VT
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is June (17 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Windsor, VT
- Average snowfall in September: 0"
The month with the highest snowfall is February (11.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Windsor, VT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (16.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Windsor, VT
- 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Windsor, VT
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is September (16.1 days).
The months with the least sunshine days are March and June (10.8 days).
Average UV index in September
Windsor, VT
- 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 and February (UV index 1).
Average cloud cover in September
Windsor, VT
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Windsor, VT
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Windsor, Vermont, USA
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