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 sea temperature 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 arrival of December in Stamford corresponds with a temperature reduction, down from November's fresh 50.9°F (10.5°C) to an icy 41.9°F (5.5°C). Stamford registers an average low-temperature of 33.3°F (0.7°C) throughout December, a modest decrease from its daytime highs.Humidity
February, May, June and December, with an average relative humidity of 75%, are the most humid months in Stamford.Rainfall
In Stamford, during December, the rain falls for 11.6 days and regularly aggregates up to 3.94" (100mm) of precipitation. Throughout the year, there are 164.1 rainfall days, and 37.95" (964mm) of precipitation is accumulated.Snowfall
Months with snowfall in Stamford are January through April, November and December. In December, it is snowing for 3.9 days. Throughout December, 1.65" (42mm) of snow is accumulated. In Stamford, during the entire year, snow falls for 23.2 days and aggregates up to 8.66" (220mm) of snow.Ocean temperature
In Stamford, the average seawater temperature in December is 47.1°F (8.4°C).Note: Engaging in a swim in 47.1°F (8.4°C) can threaten life. Brief exposure to 55.4°F (13°C) waters is uneasy, and submersion below 50°F (10°C) can lead to cold shock and disrupted breathing patterns, varying by individual.
Daylight
December has the shortest days of the year in Stamford, with an average of 9h and 18min of daylight.On the first day of December in Stamford, sunrise is at 7:00 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:35 pm EST.
Sunshine
In December, the average sunshine in Stamford is 4.8h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Stamford. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
How cold is it in Stamford in December?
What are the most humid months in Stamford?
What is the average humidity in December in Stamford?
How many days does it rain in December in Stamford?
How many days does it snow in December in Stamford?
What is the ocean temperature in December in Stamford?
What is the month with the shortest days in Stamford?
How many hours of daylight does Stamford have in December?
When are sunrise and sunset in December in Stamford?
How many hours of sunshine does Stamford have in December?
What are the months with the lowest UV index in Stamford?
What is the UV index reading in December in Stamford?
Average temperature in December
Stamford, CT
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in December: 33.3°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in December
Stamford, CT
- 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
Stamford, CT
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Stamford, CT
- Average humidity in December: 75%
The months with the highest relative humidity are February, May, June and December (75%).
The months with the lowest relative humidity are April, August and November (72%).
Average rainfall in December
Stamford, CT
- Average rainfall in December: 3.94"
The wettest month (with the highest rainfall) is July (4.25").
The driest months (with the least rainfall) are January and February (2.36").
Average rainfall days in December
Stamford, CT
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Stamford, CT
- Average snowfall in December: 1.65"
The months with the highest snowfall are February and March (2.44").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Stamford, CT
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in December
Stamford, CT
- Average sea temperature in December: 47.1°F
The best month for swimming (with the highest average sea temperature) is August (73.1°F).
The coldest month (with the lowest average sea temperature) is February (39.5°F).
Average daylight in December /
Average sunshine in December
Stamford, CT
- Average daylight in December: 9h and 2min
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 December: 4h and 5min
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 42min).
Average sunshine days in December
Stamford, CT
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in December
Stamford, CT
- Average UV index in December: 2
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 December
Stamford, CT
- Average cloud cover in December: 49
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Stamford, CT
- Average visibility in December: 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).
Stamford, Connecticut, USA
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