Stamford, CT weather in December
December in Stamford: chilly, with frequent rain and some snow. Highs 42°F, lows 28°F, rain or snow on about 11 days and about 5.5 in of snow.
- Normal high
- 42°F
- Normal low
- 28°F
- Wet days
- 11
- 4.2 in total
- Snowfall
- 5.5 in
- snow on the ground 5 days
How December changes from start to finish
| December 1 | December 31 | |
|---|---|---|
| Normal high | 47°F | 39°F |
| Normal low | 32°F | 25°F |
| Chance of a wet day | 36% | 34% |
| Sunrise / sunset | 6:59 am / 4:26 pm | 7:19 am / 4:35 pm |
| Daylight | 9.4 h | 9.3 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical December day
- 6 am33°Fdew point 25°F
- 9 am35°Fdew point 26°F
- Noon39°Fdew point 26°F
- 3 pm40°Fdew point 25°F
- 6 pm37°Fdew point 26°F
- 9 pm35°Fdew point 25°F
NOAA hourly normals (local standard time) from Westchester Co Airport (9 mi away); average wind 9 mph; clear or few clouds in 55% of daytime hours, mostly cloudy or overcast in 40%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph0 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow11 of 31
- Notable rainat least 0.10 in7 of 31
- Freezing nightslow 32°F or below22 of 31
- Snow on the groundsnow depth 1 in or more5 of 31
Average days per December, counted from daily records for each year 1991-2020.
Rain and snow in December
Normal precipitation is 4.2 in; a dry December brings about 3.4 in and a wet one about 5.0 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more. Normal snowfall is 5.5 in, with about 2 days of an inch or more.
How December varies from year to year
- Warmest December, 1991-20202015: average high 53°F
- Coolest December2000: average high 35°F
- Wettest December1996: 7.5 in
- Driest December1998: 1.3 in
- Highest reading75°F (December 7, 1998)
- Lowest reading5°F (December 28, 1999)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
December compared with November and January
| November | December | January | |
|---|---|---|---|
| Normal high | 52°F | 42°F | 37°F |
| Normal low | 36°F | 28°F | 22°F |
| Wet days | 10 | 11 | 10 |
| Comfortable days | 3 | 0 | 0 |
| Daylight | 9.9 h | 9.3 h | 9.6 h |
Highs change by -10°F from November and -5°F into January.
Nearby alternatives in December
- Warmer: Cape May, NJ163 mi · high 48°F · 11 wet days
- Cooler: Saratoga Springs, NY141 mi · high 37°F · 12 wet days
How Stamford ranks in December
- Normal high265th warmest of 378 cities; 3rd of 5 in Connecticut
- Wet days273rd driest of 378
- Comfortable days233rd most of 340
What to pack for Stamford in December
- A warm jacket – lows near 28°F, highs near 42°F
- A rain jacket or umbrella – rain or snow on about 11 days
- Waterproof boots – about 5.5 in of snow in a typical year
- A hat and gloves – about 22 freezing nights
Heating and cooling
December has 925 heating degree days and 0 cooling degree days (base 65°F), 15% of the year's total heating and cooling demand.
Questions
How cold is Stamford in December?
The normal high is 42°F and the normal low is 28°F. From 1991 to 2020 the coldest December reading was 5°F (December 28, 1999).
Does it rain a lot in Stamford in December?
About 11 days in December have at least 0.01 in of precipitation, and the normal total is 4.2 in. The wettest December in 1991-2020 was in 1996 (7.5 in); the driest was in 1998 (1.3 in).
Does it snow in Stamford in December?
Yes. Normal snowfall in December is 5.5 in, and snow covers the ground on about 5 days.
Is December a good time to visit Stamford?
December ranks 11th of 12 months on our comfort score for Stamford (31 out of 100). It has almost no comfortable days. The best month is May.
Where the numbers come from
- Temperature, rain, frost dates and humidity and wind by hour: Westchester Co Airport (USW00094745), 8.8 mi W of the city center, 379 ft (363 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Bridgeport Sikorsky Mem Airport (USW00094702), 23 mi ENE of the city center, 5 ft . NOAA normals and daily records, 1991-2020.
- Cloud cover: Teterboro Airport (USW00094741), 31 mi WSW of the city center, 9 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Westchester County Airport (725037-94745), 8.7 mi W of the city center, 370 ft (354 ft higher than the city). Hourly observations, 1991-2020.