Climate averages 1991–2020
Columbia (South Carolina), United States weather
in December.
A cool, wet month: the 11th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in Columbia (South Carolina), United States: daytime highs average 13.6°C and nights cool to about 4.2°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 93 mm of rain on roughly 9 days, which makes December a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 56 min on an average December day.
The nearest other city in this atlas is Rock Hill (103 km away). In December its highs average 11.9°C, 1.8°C cooler than Columbia (South Carolina), United States, with 96 mm of rain.
Among the 498 cities listed in the United States, Columbia (South Carolina), United States ranks joint 189th of 498 for the warmest December highs and joint 340th of 498 for the driest December (rainfall, lowest first). The mean December high of those 498 cities is 10.5°C; Columbia (South Carolina), United States is 3.1°C warmer than that mean.
From December to January, average highs fall by 1.4°C to 12.3°C, and monthly rainfall falls from 93 mm to 89 mm.
The annual picture
December in context
Monthly rainfall
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
Columbia (South Carolina), United States climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 12.3°C2.7°C | 2.7°C | 89 | 9.1 | 10.210 h |
| February | 14.4°C3.9°C | 3.9°C | 87 | 8.3 | 10.911 h |
| March | 18.4°C7.1°C | 7.1°C | 89 | 9.3 | 12.012 h |
| April | 23.4°C11.4°C | 11.4°C | 85 | 8.1 | 13.013 h |
| May | 27.6°C16.3°C | 16.3°C | 76 | 9.3 | 13.914 h |
| June | 30.7°C20.7°C | 20.7°C | 108 | 13.4 | 14.414 h |
| July | 32.3°C22.7°C | 22.7°C | 112 | 15.2 | 14.214 h |
| August | 31.2°C22.0°C | 22.0°C | 107 | 13.4 | 13.413 h |
| September | 28.3°C19.0°C | 19.0°C | 94 | 8.8 | 12.412 h |
| October | 23.3°C13.1°C | 13.1°C | 84 | 7.1 | 11.411 h |
| November | 17.8°C7.4°C | 7.4°C | 72 | 7.2 | 10.410 h |
| December, selected | 13.6°C4.2°C | 4.2°C | 93 | 8.8 | 9.910 h |
Rainfall is the average of the 30 separate monthly totals. A rain 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
- Rock Hill in DecemberUnited States · 103 kmHigh 11.9°C · Low 3.1°C · 96 mm rain
- Charlotte in DecemberUnited States · 137 kmHigh 11.2°C · Low 2.1°C · 93 mm rain
- Gastonia in DecemberUnited States · 141 kmHigh 11.0°C · Low 2.5°C · 101 mm rain
- North Charleston in DecemberUnited States · 161 kmHigh 15.8°C · Low 7.5°C · 86 mm rain
- Concord (North Carolina), United States in DecemberUnited States · 162 kmHigh 11.2°C · Low 2.5°C · 94 mm rain
- Charleston in DecemberUnited States · 170 kmHigh 15.9°C · Low 8.9°C · 86 mm rain
- Savannah in DecemberUnited States · 213 kmHigh 16.4°C · Low 8.1°C · 86 mm rain
- Athens, United States in DecemberUnited States · 216 kmHigh 12.5°C · Low 3.6°C · 113 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 Columbia) is explained once on the Columbia (South Carolina), United States year overview and on the Sources, method and limits page.