December weather forecastStamford, NY
December
Weather in December
The first month of the winter, December, is also a wintry month in Stamford, New York, with an average temperature fluctuating between 32°F (0°C) and 21.7°F (-5.7°C).Temperature
The commencement of December indicates a shift in the average high-temperature, receding from November's 41.9°F (5.5°C) to a still icy 32°F (0°C). During the month of December, the temperature generally drops to a low average of 21.7°F (-5.7°C).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 87%.Rainfall
In December, the rain falls for 8.4 days. Throughout December, 2.05" (52mm) of precipitation is accumulated. In Stamford, during the entire year, the rain falls for 150.7 days and collects up to 27.83" (707mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 18 days and typically aggregates up to 9.84" (250mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:08 am and sunset at 4:26 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:35 pm EST.
Sunshine
The average sunshine in December is 3h.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 1 in December translates into this advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Stamford, NY
- Average high temperature in December: 32°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in December: 21.7°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in December
Stamford, NY
- Average pressure in December: 30.07"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
Stamford, NY
- Average wind speed in December: 8.7mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Stamford, NY
- Average humidity in December: 87%
The months with the highest relative humidity are February and December (87%).
The months with the lowest relative humidity are April, May, June and July (80%).
Average rainfall in December
Stamford, NY
- Average rainfall in December: 2.05"
The wettest month (with the highest rainfall) is August (3.27").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in December
Stamford, NY
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (4.6 days).
Average snowfall in December
Stamford, NY
- Average snowfall in December: 9.84"
The month with the highest snowfall is December (9.84").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Stamford, NY
- Average snowfall days in December: 18 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Stamford, NY
- Average daylight in December: 9h and 6min
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 6min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in December
Stamford, NY
- Average sunshine days in December: 9.3 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is February (7.5 days).
Average UV index in December
Stamford, NY
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Stamford, NY
- Average cloud cover in December: 71
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in December
Stamford, NY
- Average visibility in December: 5mi
The months with the highest visibility are January, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February, March and September (4mi).
