September weather forecastWethersfield, CT
September
Weather in September
Moving from balmy August to September in Wethersfield, a noticeable drop in maximum temperatures from 81°F (27.2°C) to 73.4°F (23°C) indicates the arrival of fall. It is the month that bids farewell to the summer season, replacing its heat with milder temperatures. The shift from the warm summer to the cool autumn can be sensed as a welcome respite from the continuous summer heat. The seasonal shift also brings with it the changing colors of foliage, inviting residents and tourists alike to partake in the autumn scenery. As September transitions into October, Wethersfield prepares to exchange sunny landscapes for vibrant fall hues.Temperature
The advent of September brings a subtle shift in temperature, with the average high moving from a warm 81°F (27.2°C) in August to a still moderately hot 73.4°F (23°C). In September, Wethersfield encounters an average low-temperature of 55.6°F (13.1°C) during the night.Humidity
In Wethersfield, the average relative humidity in September is 77%.Rainfall
September is the month with the least rainfall in Wethersfield, Connecticut. Rain falls for 12.8 days and accumulates 1.93" (49mm) of precipitation.Snowfall
June through October are months without snowfall in Wethersfield, Connecticut.Daylight
The average length of the day in September in Wethersfield is 12h and 28min.On the first day of the month, sunrise is at 6:17 am and sunset at 7:23 pm. On the last day of September, in Wethersfield, sunrise is at 6:47 am and sunset at 6:33 pm EDT.
Sunshine
The average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index in Wethersfield is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Wethersfield, CT
- Average high temperature in September: 73.4°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 55.6°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in September
Wethersfield, CT
- 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 (29.93"Hg).
Average wind speed in September
Wethersfield, CT
- Average wind speed in September: 5.8mph
The windiest months (with the highest average wind speed) are January and March (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Wethersfield, CT
- Average humidity in September: 77%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (70%).
Average rainfall in September
Wethersfield, CT
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is December (3.19").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Wethersfield, CT
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is January (9.2 days).
Average snowfall in September
Wethersfield, CT
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Wethersfield, CT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Wethersfield, CT
- Average daylight in September: 12h and 30min
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 12min).
- Average sunshine in September: 8h and 42min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Wethersfield, CT
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is January (17.6 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in September
Wethersfield, CT
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Wethersfield, CT
- Average cloud cover in September: 36
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Wethersfield, CT
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are February, May and September (5mi).
