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 beginning of September, the average high-temperature shows a small decrease, transitioning from a warm 80.2°F (26.8°C) in August to a pleasant 72.9°F (22.7°C). September nights observe an average temperature dip to a cool 54.3°F (12.4°C).Humidity
In September, the average relative humidity in Sherman, Connecticut, is 80%.Rainfall
In Sherman, Connecticut, 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
In Sherman, Connecticut, snow does not fall in June through September.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 Sherman, the average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Frequently asked questions
What are the temperatures in Sherman in September?
What is the average humidity in September in Sherman?
How many days does it rain in September in Sherman?
When it does not snow in Sherman?
Does it snow in Sherman in September?
How many hours of daylight does Sherman have in September?
When is the sunrise / sunset in September in Sherman?
How long on average sun shines in September in Sherman?
How high is the UV index in September in Sherman?
Average temperature in September
Sherman, 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
Sherman, 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
Sherman, 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
Sherman, 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
Sherman, 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
Sherman, 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
Sherman, 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
Sherman, 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
Sherman, 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 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
Sherman, 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
Sherman, 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
Sherman, 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
Sherman, 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).
Sherman, Connecticut, USA
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