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 witnesses a gentle descent in average high-temperature, descending from August's warm 75.9°F (24.4°C) to an agreeable 68.9°F (20.5°C). During September, Windsor experiences an average low-temperature of 50°F (10°C) at night.Humidity
The average relative humidity in September in Windsor is 81%.Rainfall
In September, the rain falls for 12.4 days. Throughout September, 2.05" (52mm) of precipitation is accumulated. Throughout the year, in Windsor, there are 149.4 rainfall days, and 24.53" (623mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Windsor.Daylight
In September, the average length of the day is 12h and 29min.On the first day of the month, sunrise is at 6:17 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:49 am and sunset at 6:34 pm EDT.
Sunshine
The average sunshine in September in Windsor is 8.3h.UV index
In Windsor, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: In September, a regular UV index of 3 translates into these guidelines:
Take precautions - Protection against sunburn is recommended. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What is the average September temperature in Windsor?
What is the average humidity in September in Windsor?
How much does it rain in Windsor in September?
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 is the sunrise / sunset in September in Windsor?
How long on average sun shines in September in Windsor?
What is the UV index intensity in September in Windsor?
Average temperature in September
Windsor, MA
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in September: 50°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 (14.4°F).
Average pressure in September
Windsor, MA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Windsor, MA
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Windsor, MA
- Average humidity in September: 81%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Windsor, MA
- Average rainfall in September: 2.05"
The wettest months (with the highest rainfall) are May and October (2.56").
The driest months (with the least rainfall) are January and February (1.46").
Average rainfall days in September
Windsor, MA
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in September
Windsor, MA
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Windsor, MA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (16.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Windsor, MA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in September
Windsor, MA
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is February (9.6 days).
Average UV index in September
Windsor, MA
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Windsor, MA
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in September
Windsor, MA
- 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, Massachusetts, USA
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