December weather forecastChichester, NY
December
Weather in December
The first month of the winter, December, is also an icy month in Chichester, New York, with an average temperature fluctuating between 34.3°F (1.3°C) and 23.5°F (-4.7°C).Temperature
In Chichester, the average high-temperature in December drops from a chilly 44.4°F (6.9°C) in November to an icy 34.3°F (1.3°C). Throughout December, Chichester encounters an average temperature drop to a freezing cold 23.5°F (-4.7°C).Humidity
February and December, with an average relative humidity of 84%, are the most humid months.Rainfall
In Chichester, in December, during 8.7 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. Throughout the year, in Chichester, there are 138.1 rainfall days, and 21.1" (536mm) of precipitation is accumulated.Snowfall
Months with snowfall in Chichester are January through May, October through December. In Chichester, in December, during 8.8 snowfall days, 4.69" (119mm) of snow is typically accumulated. In Chichester, New York, during the entire year, snow falls for 49.9 days and aggregates up to 27.48" (698mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:06 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:35 pm EST.
Sunshine
In December, the average sunshine in Chichester is 4.6h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Experience reduced UV exposure by about half when donning a wide-brim hat. 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 December
Chichester, NY
- Average high temperature in December: 34.3°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in December: 23.5°F
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in December
Chichester, NY
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Chichester, NY
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Chichester, NY
- Average humidity in December: 84%
The months with the highest relative humidity are February and December (84%).
The months with the lowest relative humidity are April, June and July (77%).
Average rainfall in December
Chichester, NY
- Average rainfall in December: 1.69"
The wettest month (with the highest rainfall) is July (2.4").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days in December
Chichester, NY
- Average rainfall days in December: 8.7 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is February (6 days).
Average snowfall in December
Chichester, NY
- Average snowfall in December: 4.69"
The month with the highest snowfall is March (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Chichester, NY
- Average snowfall days in December: 8.8 days
The months with the highest number of snowfall days are January and February (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Chichester, NY
- Average daylight in December: 9h and 12min
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 December: 4h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in December
Chichester, NY
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in December
Chichester, NY
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Chichester, NY
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in December
Chichester, NY
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
