Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a warm 80.2°F (26.8°C) to an agreeable 72.9°F (22.7°C). September nights in New Fairfield observe an average temperature dip to a cool 54.7°F (12.6°C).Humidity
In September, the average relative humidity is 79%.Rainfall
In New Fairfield, in September, it is raining for 13.6 days, with typically 2.48" (63mm) of accumulated precipitation. Throughout the year, there are 163.7 rainfall days, and 37.32" (948mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.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, sunrise is at 6:50 am and sunset at 6:36 pm EDT.
Sunshine
In September, the average sunshine in New Fairfield is 8.2h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 4 during September translates into these guidelines:
Undertake protective steps - Preventing sun damage is advised. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for New Fairfield in September?
What is the average humidity in September in New Fairfield?
How much does it rain in New Fairfield in September?
When it does not snow in New Fairfield?
Does it snow in New Fairfield in September?
How many hours of daylight does New Fairfield have in September?
When are sunrise and sunset in September in New Fairfield?
How long on average sun shines in September in New Fairfield?
What is the UV index reading in September in New Fairfield?
Average temperature in September
New Fairfield, CT
- Average high temperature in September: 72.9°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in September: 54.7°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).
Average pressure in September
New Fairfield, 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 Fairfield, CT
- Average wind speed in September: 5.5mph
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 Fairfield, CT
- Average humidity in September: 79%
The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
New Fairfield, CT
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is July (3.9").
The driest month (with the least rainfall) is January (2.36").
Average rainfall days in September
New Fairfield, CT
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in September
New Fairfield, CT
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.67").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
New Fairfield, CT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (10.3 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 Fairfield, CT
- Average daylight in September: 12h and 3min
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 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in September
New Fairfield, CT
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in September
New Fairfield, CT
- Average UV index in September: 4
The month with the highest UV index is June (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
New Fairfield, CT
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
New Fairfield, 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).
New Fairfield, Connecticut, USA
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