September weather forecastGilman, CT
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Gilman, Connecticut, with an average temperature varying between 73.2°F (22.9°C) and 57.4°F (14.1°C).Temperature
Gilman records a mild change in average high-temperature during September, easing from a warm 80.2°F (26.8°C) in August to an agreeable 73.2°F (22.9°C). In September, Gilman experiences a temperature dip to an average of 57.4°F (14.1°C) at night.Humidity
The months with the highest humidity are February, June, July and September, with an average relative humidity of 78%.Rainfall
September is the month with the least rainfall. Rain falls for 11.8 days and accumulates 1.61" (41mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:15 am and sunset at 7:21 pm. On the last day of September, sunrise is at 6:45 am and sunset at 6:31 pm EDT.
Sunshine
The average sunshine in September is 8.4h.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 unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gilman, CT
- Average high temperature in September: 73.2°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in September: 57.4°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Gilman, CT
- Average pressure in September: 30.05"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
Gilman, CT
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in September
Gilman, CT
- Average humidity in September: 78%
The months with the highest relative humidity are February, June, July and September (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Gilman, CT
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in September
Gilman, CT
- Average rainfall days in September: 11.8 days
The months with the highest number of rainy days are May and July (16.3 days).
The month with the least rainy days is January (9 days).
Average snowfall in September
Gilman, CT
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.43").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Gilman, CT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.3 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
Gilman, 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 24min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in September
Gilman, CT
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in September
Gilman, 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
Gilman, CT
- Average cloud cover in September: 38
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Gilman, CT
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, September, October, November and December (6mi).
The months with the lowest visibility are May, June, July and August (5mi).
