Climate averages 1991–2020
Worcester, United States weather
in December.
A cold, wet month: the 10th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Worcester, United States: daytime highs average 3.5°C and nights cool to about -3.6°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 108 mm of rain on roughly 11 days, which makes December a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 9 h 09 min on an average December day.
The nearest other city in this atlas is Newton (49 km away). In December its highs average 4.6°C, 1.0°C warmer than Worcester, United States, with 107 mm of rain.
Among the 498 cities listed in the United States, Worcester, United States ranks joint 407th of 498 for the warmest December highs and joint 422nd of 498 for the driest December (rainfall, lowest first). The mean December high of those 498 cities is 10.5°C; Worcester, United States is 7.0°C cooler than that mean.
From December to January, average highs fall by 2.8°C to 0.7°C, and monthly precipitation falls from 108 mm to 85 mm.
The annual picture
December in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Worcester, United States climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 0.7°C-7.6°C | -7.6°C | 85 | 9.8 | 9.59 h |
| February | 2.2°C-6.8°C | -6.8°C | 78 | 8.7 | 10.511 h |
| March | 6.4°C-2.9°C | -2.9°C | 107 | 10.7 | 11.912 h |
| April | 13.3°C3.2°C | 3.2°C | 95 | 11.3 | 13.313 h |
| May | 19.2°C9.2°C | 9.2°C | 82 | 10.8 | 14.615 h |
| June | 24.3°C14.7°C | 14.7°C | 100 | 11.5 | 15.215 h |
| July | 27.6°C18.1°C | 18.1°C | 90 | 10.6 | 14.915 h |
| August | 26.5°C17.4°C | 17.4°C | 97 | 10.2 | 13.914 h |
| September | 22.3°C13.6°C | 13.6°C | 92 | 8.5 | 12.513 h |
| October | 15.4°C7.6°C | 7.6°C | 99 | 9.8 | 11.111 h |
| November | 9.1°C1.9°C | 1.9°C | 86 | 9.1 | 9.810 h |
| December, selected | 3.5°C-3.6°C | -3.6°C | 108 | 10.5 | 9.29 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Newton in DecemberUnited States · 49 kmHigh 4.6°C · Low -2.6°C · 107 mm rain
- Pawtucket in DecemberUnited States · 55 kmHigh 5.4°C · Low -2.0°C · 107 mm rain
- Lowell in DecemberUnited States · 57 kmHigh 4.0°C · Low -3.4°C · 104 mm rain
- Providence in DecemberUnited States · 58 kmHigh 5.5°C · Low -1.9°C · 109 mm rain
- Dorchester in DecemberUnited States · 60 kmHigh 4.6°C · Low -2.4°C · 115 mm rain
- Boston in DecemberUnited States · 62 kmHigh 4.4°C · Low -3.1°C · 115 mm rain
- Nashua in DecemberUnited States · 62 kmHigh 3.3°C · Low -4.2°C · 105 mm rain
- Quincy in DecemberUnited States · 66 kmHigh 4.9°C · Low -1.6°C · 115 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Worcester) is explained once on the Worcester, United States year overview and on the Sources, method and limits page.