Worcester weather in December: Worcester, Massachusetts: normal highs, lows, rain and records for December
Worcester in December has a normal high of 38°F and a normal low of 23°F, a daily mean of 31°F, falling from 42°F on the 1st to 34°F by the 31st. Measurable precipitation falls on 12 days in a normal December, 4.28 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 3°C and low of −5°C, 109 mm of precipitation and 38 cm of snow in December.
- NOAA stationWorcester Regional Airport
- Station IDUSW00094746
- Location42.27°N 71.87°W
- Elevation1,000 ft (305 m)
- From the center3 miles
- Population211,286
- Jan 32° 17°
- Feb 35° 19°
- Mar 43° 26°
- Apr 56° 37°
- May 67° 47°
- Jun 75° 56°
- Jul 80° 62°
- Aug 78° 61°
- Sep 71° 53°
- Oct 59° 42°
- Nov 48° 33°
- Dec 38° 23°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Worcester in December?
The normal high is 38°F and the normal low 23°F, for a daily mean of 30.5°F. December is 9.7°F cooler than November and 5.8°F warmer than January. December is the 10th warmest month of the year in Worcester and the 2nd wettest. Across the month the normal high falls 8°F, from 42°F on December 1 to 34°F on December 31. From one year to the next December's mean temperature typically moves about 4.0°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 27°F and 35°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 41%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 42°F | 28°F | 38% | 24% |
| December 8 | 40°F | 26°F | 39% | 25% |
| December 15 | 38°F | 24°F | 40% | 25% |
| December 22 | 36°F | 22°F | 40% | 25% |
| December 31 | 34°F | 19°F | 41% | 24% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 42°F | 28°F | 38% | 24% | 9 h 20 min |
| December 2 | 42°F | 27°F | 38% | 24% | 9 h 20 min |
| December 3 | 41°F | 27°F | 38% | 24% | 9 h 20 min |
| December 4 | 41°F | 27°F | 38% | 24% | 9 h 20 min |
| December 5 | 41°F | 27°F | 38% | 25% | 9 h 20 min |
| December 6 | 40°F | 26°F | 38% | 25% | 9 h 10 min |
| December 7 | 40°F | 26°F | 39% | 25% | 9 h 10 min |
| December 8 | 40°F | 26°F | 39% | 25% | 9 h 10 min |
| December 9 | 39°F | 25°F | 39% | 25% | 9 h 10 min |
| December 10 | 39°F | 25°F | 39% | 25% | 9 h 10 min |
| December 11 | 39°F | 25°F | 39% | 25% | 9 h 10 min |
| December 12 | 38°F | 25°F | 39% | 25% | 9 h 10 min |
| December 13 | 38°F | 24°F | 39% | 25% | 9 h 10 min |
| December 14 | 38°F | 24°F | 40% | 25% | 9 h 10 min |
| December 15 | 38°F | 24°F | 40% | 25% | 9 h 10 min |
| December 16 | 37°F | 23°F | 40% | 25% | 9 h 10 min |
| December 17 | 37°F | 23°F | 40% | 25% | 9 h 10 min |
| December 18 | 37°F | 23°F | 40% | 25% | 9 h 10 min |
| December 19 | 36°F | 23°F | 40% | 25% | 9 h 10 min |
| December 20 | 36°F | 22°F | 40% | 25% | 9 h 10 min |
| December 21 | 36°F | 22°F | 40% | 25% | 9 h 10 min |
| December 22 | 36°F | 22°F | 40% | 25% | 9 h 10 min |
| December 23 | 36°F | 21°F | 41% | 25% | 9 h 10 min |
| December 24 | 35°F | 21°F | 41% | 25% | 9 h 10 min |
| December 25 | 35°F | 21°F | 41% | 25% | 9 h 10 min |
| December 26 | 35°F | 21°F | 41% | 25% | 9 h 10 min |
| December 27 | 35°F | 20°F | 41% | 25% | 9 h 10 min |
| December 28 | 34°F | 20°F | 41% | 25% | 9 h 10 min |
| December 29 | 34°F | 20°F | 41% | 25% | 9 h 10 min |
| December 30 | 34°F | 20°F | 41% | 24% | 9 h 10 min |
| December 31 | 34°F | 19°F | 41% | 24% | 9 h 10 min |
- Normal high
- 38°FDecember average
- Normal low
- 23°FDecember average
- Precipitation
- 4.28 inmonth total
- Days with precipitation
- 120.01 inch or more
- Snowfall
- 14.9 inmonth total
- Nights at 32°F or colder
- 26
- Daylight
- 9 h 20 min to 9 h 10 minDecember 1 to December 31
- Sunshine
- 66%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094746; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Worcester in December?
On a given December day the chance of 0.01 inch or more is 40% on average, highest around December 31 (41%). In all, 4.28 in falls on 12 days of a normal December, 1 of them with an inch or more.
In a normal December in Worcester, 26 nights fall to freezing, 10 days stay below freezing all day and snowfall averages 14.9 inches.
Snow falls on 6 days in a normal December.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094746.
What are the records for December in Worcester?
The warmest December temperature on Worcester's official record (since 1892) is 72°F, on December 7, 1998; the coldest is −17°F, on December 29, 1933. The wettest December brought 9.83 in (1973); the snowiest, 37.0 inches (1992).
The December mean against the 1991-2020 normal of 30.5°F: 2021 35.2°F (+4.7), 2022 34.2°F (+3.7), 2023 38.3°F (+7.8), 2024 31.6°F (+1.1), 2025 25.7°F (−4.8). 4 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 35.2°F | +4.7°F | 3.59 in |
| 2022 | 34.2°F | +3.7°F | 6.07 in |
| 2023 | 38.3°F | +7.8°F | 7.39 in |
| 2024 | 31.6°F | +1.1°F | 5.02 in |
| 2025 | 25.7°F | −4.8°F | 3.81 in |
Source: records: ACIS, NWS threaded record ORHthr; recent months: ACIS, station USW00094746. Records and recent months use complete months only.
How does December in Worcester compare across Massachusetts?
Across the 35 places PlainClimate covers in Massachusetts, December normal highs run from 36°F in Pittsfield to 46°F in Edgartown; Worcester's is 38°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Worcester in November48°F by day, 33°F at night
- Worcester in January32°F by day, 17°F at night
- Worcester through the yearEvery month, frost dates, records and recent years
- Massachusetts in DecemberThe statewide normal and the warmest and coolest places
- Edgartown: Massachusetts's warmest Decembernormal high 46°F