September weather forecastGreens Farms, CT
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Greens Farms, Connecticut, with an average temperature varying between 61.7°F (16.5°C) and 73°F (22.8°C).Temperature
September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a warm 80.1°F (26.7°C) in August to an agreeable 73°F (22.8°C). Greens Farms records a mean low-temperature of 61.7°F (16.5°C) in September.Humidity
The average relative humidity in September is 75%.Rainfall
In Greens Farms, during September, the rain falls for 13.5 days and regularly aggregates up to 2.56" (65mm) of precipitation. In Greens Farms, during the entire year, the rain falls for 170.1 days and collects up to 37.76" (959mm) of precipitation.Snowfall
May through October are months without snowfall in Greens Farms.Daylight
The average length of the day in September in Greens Farms, Connecticut, is 12h and 28min.On the first day of September in Greens Farms, 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 Greens Farms, the average sunshine in September is 9h.UV index
In Greens Farms, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Greens Farms, CT
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in September: 61.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in September
Greens Farms, 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
Greens Farms, CT
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in September
Greens Farms, CT
- Average humidity in September: 75%
The months with the highest relative humidity are May and June (76%).
The months with the lowest relative humidity are April and November (72%).
Average rainfall in September
Greens Farms, CT
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is January (2.48").
Average rainfall days in September
Greens Farms, CT
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in September
Greens Farms, CT
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Greens Farms, CT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Greens Farms, 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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in September
Greens Farms, CT
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in September
Greens Farms, 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
Greens Farms, CT
- Average cloud cover in September: 33
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Greens Farms, 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).
