September weather forecastDanielson, CT
September
Weather in September
September marks the beginning of fall, introducing crisp air and cooler temperatures in Danielson, Connecticut. When juxtaposed with August, September reflects lower temperatures and reduced daylight hours. One astonishing trait about September is the considerable decrease in rainfall, recording the lowest at 1.81" (46mm). October, however, brings some warmth back, along with a surge in rainfall. The myriad of autumn colors adorning the trees make for some breathtakingly beautiful sights.Temperature
In September, the meteorological conditions in Danielson change slightly, with the average high-temperature moving from a moderately hot 79.7°F (26.5°C) in August to a pleasant 72.3°F (22.4°C). Danielson's average low-temperature during September nights is observed to be a refreshing 55.4°F (13°C).Humidity
February, June, July, September and October, with an average relative humidity of 79%, are the most humid months.Rainfall
September is the month with the least rainfall in Danielson. Rain falls for 13.6 days and accumulates 1.81" (46mm) of precipitation.Snowfall
In Danielson, snow does not fall in June through October.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:14 am and sunset at 7:20 pm. On the last day of September, in Danielson, sunrise is at 6:44 am and sunset at 6:30 pm EDT.
Sunshine
In Danielson, Connecticut, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September in Danielson, Connecticut, is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The UV index of 4 in September translates into these instructions:
Undertake protective steps - Preventing sun damage is advised. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Danielson, CT
- Average high temperature in September: 72.3°F
The warmest month (with the highest average high temperature) is July (81.1°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 (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in September
Danielson, CT
- Average pressure in September: 30.06"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
Danielson, CT
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in September
Danielson, CT
- Average humidity in September: 79%
The months with the highest relative humidity are February, June, July, September and October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Danielson, CT
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in September
Danielson, CT
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Danielson, CT
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Danielson, CT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.8 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
Danielson, 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 24min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Danielson, CT
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in September
Danielson, 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
Danielson, CT
- Average cloud cover in September: 38
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Danielson, CT
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).
