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
With the arrival of September, Somersville experiences a modest decline in average high-temperatures, transitioning from a warm 81°F (27.2°C) in August to a still moderately hot 73.8°F (23.2°C). Nighttime temperature lowers to an average of 54.5°F (12.5°C) in September.Humidity
In September, the average relative humidity in Somersville is 77%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.9 days and typically collects 1.57" (40mm) of precipitation.Snowfall
In Somersville, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:16 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:32 pm EDT.
Sunshine
In Somersville, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September in Somersville is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, a regular UV index of 4 translates into these guidelines:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What are the temperatures in Somersville in September?
What is the average humidity in September in Somersville?
What is the driest month in Somersville?
How many days does it rain in September in Somersville?
When it does not snow in Somersville?
Does it snow in Somersville in September?
How many hours of daylight does Somersville have in September?
When is the sunrise / sunset in September in Somersville?
How long on average sun shines in September in Somersville?
What is the UV index intensity in September in Somersville?
Average temperature in September
Somersville, CT
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Somersville, 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
Somersville, CT
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Somersville, CT
- Average humidity in September: 77%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).
Average rainfall in September
Somersville, CT
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is December (3.03").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in September
Somersville, CT
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Somersville, CT
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Somersville, CT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Somersville, CT
- Average daylight in September: 12h and 3min
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 2min
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 30min).
Average sunshine days in September
Somersville, CT
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (12 days).
Average UV index in September
Somersville, 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
Somersville, CT
- Average cloud cover in September: 39
The months with the most cloud cover are February and March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Somersville, CT
- Average visibility in September: 5mi
The months with the highest visibility are April, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August and September (5mi).
Somersville, Connecticut, USA
Weather forecast for your location
2. Allow the app to use your location
