Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The onset of December comes with a shift in the average high-temperature, falling from a frosty 43.7°F (6.5°C) in November to an icy 32.7°F (0.4°C). Throughout the December nights, Hartford encounters a low-temperature of 23°F (-5°C).Humidity
In Hartford, the average relative humidity in December is 81%.Rainfall
In December, the rain falls for 11.9 days. Throughout December, 2.64" (67mm) of precipitation is accumulated. Throughout the year, there are 159.1 rainfall days, and 29.69" (754mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Hartford, in December, during 11.5 snowfall days, 6.18" (157mm) of snow is typically accumulated. Throughout the year, there are 64.7 snowfall days, and 36.81" (935mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:06 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:27 pm EST.
Sunshine
In Hartford, the average sunshine in December is 4.3h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The average daily UV index of 1 in December transforms into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A hat with a broad brim is indispensable, filtering out up to half of UV rays. 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
How cold is December?
What is the average humidity in December in Hartford?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Hartford have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December in Hartford?
Average temperature in December
Hartford, NY
- Average high temperature in December: 32.7°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 23°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 (15.1°F).
Average pressure in December
Hartford, NY
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Hartford, NY
- Average wind speed in December: 6.7mph
The windiest months (with the highest average wind speed) are January and April (7.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Hartford, NY
- Average humidity in December: 81%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Hartford, NY
- Average rainfall in December: 2.64"
The wettest month (with the highest rainfall) is June (2.91").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Hartford, NY
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is June (16.7 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in December
Hartford, NY
- Average snowfall in December: 6.18"
The month with the highest snowfall is February (10.59").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hartford, NY
- Average snowfall days in December: 11.5 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hartford, NY
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in December
Hartford, NY
- Average sunshine days in December: 13.4 days
The month with the most sunshine days is September (16.7 days).
The months with the least sunshine days are February and April (10.8 days).
Average UV index in December
Hartford, NY
- Average UV index in December: 1
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 and December (UV index 1).
Average cloud cover in December
Hartford, NY
- Average cloud cover in December: 55
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July, August and September (Cloud cover 34).
Average visibility in December
Hartford, NY
- Average visibility in December: 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).
Hartford, New York, USA
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