September weather forecastCoventry Lake, CT
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Coventry Lake, Connecticut, with an average temperature varying between 55.4°F (13°C) and 73.2°F (22.9°C).Temperature
The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a warm 80.2°F (26.8°C) in August to an agreeable 73.2°F (22.9°C). An average low-temperature of 55.4°F (13°C) is recorded during the nights in September.Humidity
The average relative humidity in September is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.5 days and typically collects 1.73" (44mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
In Coventry Lake, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:15 am and sunset at 7:22 pm. On the last day of September, sunrise is at 6:45 am and sunset at 6:32 pm EDT.
Sunshine
The average sunshine in September in Coventry Lake is 8.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Exercise prevention - Warding off sunburn is urged. To guard against the harmful effects of the Sun, minimize exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Coventry Lake, CT
- Average high temperature in September: 73.2°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in September
Coventry Lake, CT
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Coventry Lake, CT
- Average wind speed in September: 6.2mph
The windiest months (with the highest average wind speed) are January and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Coventry Lake, CT
- Average humidity in September: 78%
The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Coventry Lake, CT
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in September
Coventry Lake, CT
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in September
Coventry Lake, CT
- Average snowfall in September: 0"
The month with the highest snowfall is March (4.41").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Coventry Lake, CT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Coventry Lake, 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 36min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in September
Coventry Lake, CT
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Coventry Lake, 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
Coventry Lake, CT
- Average cloud cover in September: 37
The months with the most cloud cover are February, March, May and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Coventry Lake, CT
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).
