October weather forecastNew Haven, CT
October
Weather in October
October in New Haven is the heart of the beautiful autumn season and the notable drop in temperature from the previous month starts setting in with characteristic chilly mornings and evenings. With the amber leaves decorating every street, the city encapsulates the essence of the fall season. Rainfall is a more frequent occurrence as compared to September, adding to the earthy autumn vibe. October is a season of layering up and unwinding in the city's welcoming weather before the onset of winter.Temperature
October comes with a decrease in the average high-temperature, falling from a pleasant 72.5°F (22.5°C) in September to a comfortable 61.9°F (16.6°C). October in New Haven is noted for a mean low-temperature of 50.9°F (10.5°C).Humidity
The average relative humidity in October is 75%.Rainfall
In October, the rain falls for 14.3 days. Throughout October, 3.54" (90mm) of precipitation is accumulated. Throughout the year, in New Haven, there are 167.2 rainfall days, and 35.71" (907mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in New Haven.Ocean temperature
In October, the average ocean temperature is 63.1°F (17.3°C).Note: For most, swimming in 63.1°F (17.3°C) is not a pleasant experience. As the temperature falls from 69.8°F (21°C) to 59°F (15°C), controlling one's breathing becomes more difficult.
Daylight
In October, the average length of the day is 11h and 5min.On the first day of the month, sunrise is at 6:49 am and sunset at 6:33 pm. On the last day of October, in New Haven, sunrise is at 7:22 am and sunset at 5:47 pm EDT.
Sunshine
The average sunshine in October is 6h.UV index
In October, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high daily UV index of 3 during October translates into the following directions:
Undertake precautions - Guarding against sun damage is counselled. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
New Haven, CT
- Average high temperature in October: 61.9°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in October: 50.9°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in October
New Haven, CT
- Average pressure in October: 30.01"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 October
New Haven, CT
- Average wind speed in October: 9.3mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in October
New Haven, CT
- Average humidity in October: 75%
The months with the highest relative humidity are February, May and June (76%).
The months with the lowest relative humidity are April and November (72%).
Average rainfall in October
New Haven, CT
- Average rainfall in October: 3.54"
The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in October
New Haven, CT
- Average rainfall days in October: 14.3 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in October
New Haven, CT
- Average snowfall in October: 0"
The month with the highest snowfall is March (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
New Haven, CT
- Average snowfall days in October: 0.1 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 and September (0 days).
Average sea temperature in October
New Haven, CT
- Average sea temperature in October: 63.1°F
The best month for swimming (with the highest average sea temperature) is August (73°F).
The coldest month (with the lowest average sea temperature) is February (38.5°F).
Average daylight in October /
Average sunshine in October
New Haven, CT
- Average daylight in October: 11h and 6min
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 18min).
- Average sunshine in October: 6h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in October
New Haven, CT
- Average sunshine days in October: 14.6 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is August (11.3 days).
Average UV index in October
New Haven, CT
- Average UV index in October: 3
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 October
New Haven, CT
- Average cloud cover in October: 41
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in October
New Haven, CT
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
