September weather forecastWeston, CT
September
Weather in September
September, the first month of the autumn in Weston, is also an agreeable month, with an average temperature ranging between min 60.1°F (15.6°C) and max 72.9°F (22.7°C).Temperature
With the onset of September, Weston's average high-temperature slightly adjusts, moderately receding from August's warm 80.2°F (26.8°C) to an agreeable 72.9°F (22.7°C). During September, the nighttime temperature in Weston averages of 60.1°F (15.6°C).Humidity
In September, the average relative humidity in Weston is 75%.Rainfall
In Weston, in September, it is raining for 14 days, with typically 2.72" (69mm) of accumulated precipitation. In Weston, during the entire year, the rain falls for 170.2 days and collects up to 38.62" (981mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September, sunrise is at 6:20 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:36 pm EDT.
Sunshine
In Weston, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Undertake precautions - Guarding against sun damage is counselled. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Weston, CT
- Average high temperature in September: 72.9°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in September: 60.1°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in September
Weston, CT
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Weston, CT
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in September
Weston, CT
- Average humidity in September: 75%
The months with the highest relative humidity are February, May, June, October and December (76%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Weston, CT
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is December (4.17").
The driest month (with the least rainfall) is January (2.44").
Average rainfall days in September
Weston, CT
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in September
Weston, CT
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Weston, CT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Weston, CT
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Weston, CT
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in September
Weston, CT
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Weston, CT
- Average cloud cover in September: 34
The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Weston, CT
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
