September weather forecastNew Milford, CT
September
Weather in September
The first month of the autumn, September, is also an agreeable month in New Milford, Connecticut, with temperature in the range of an average low of 54.3°F (12.4°C) and an average high of 72.9°F (22.7°C).Temperature
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's moderately hot 80.2°F (26.8°C) to a pleasant 72.9°F (22.7°C). During September, New Milford's temperature averages to a cool 54.3°F (12.4°C) at night.Humidity
In New Milford, the average relative humidity in September is 80%.Rainfall
In New Milford, in September, it is raining for 11.4 days, with typically 1.22" (31mm) of accumulated precipitation. Throughout the year, there are 140.7 rainfall days, and 17.56" (446mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in New Milford.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:26 pm. On the last day of September, in New Milford, sunrise is at 6:50 am and sunset at 6:36 pm EDT.
Sunshine
The average sunshine in September is 8.2h.UV index
In New Milford, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, the UV index of 4 transforms into the following advice:
Adopt protective measures - Suggestions to resist sunburn are offered. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
New Milford, CT
- Average high temperature in September: 72.9°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in September: 54.3°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in September
New Milford, 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
New Milford, CT
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
New Milford, CT
- Average humidity in September: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
New Milford, CT
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is July (2.24").
The driest month (with the least rainfall) is February (0.83").
Average rainfall days in September
New Milford, CT
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in September
New Milford, CT
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
New Milford, CT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
New Milford, 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 12min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in September
New Milford, CT
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is July (12.7 days).
Average UV index in September
New Milford, 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
New Milford, CT
- Average cloud cover in September: 43
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
New Milford, CT
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).





