Climate averages 1991–2020
Columbia (Maryland), United States weather
in January.
A cold, moderately wet month: the coolest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a cold month in Columbia (Maryland), United States: daytime highs average 4.6°C and nights cool to about -2.7°C. By daytime temperature it is the coolest month of the year.
Expect about 80 mm of rain on roughly 9 days, which makes January a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 45 min on an average January day.
The nearest other city in this atlas is Baltimore (20 km away). In January its highs average 4.8°C, about as warm as Columbia (Maryland), United States, with 90 mm of rain.
Among the 498 cities listed in the United States, Columbia (Maryland), United States ranks joint 327th of 498 for the warmest January highs and joint 269th of 498 for the driest January (rainfall, lowest first). The mean January high of those 498 cities is 9.5°C; Columbia (Maryland), United States is 4.9°C cooler than that mean.
From January to February, average highs rise by 1.7°C to 6.3°C, and monthly rainfall falls from 80 mm to 74 mm.
The annual picture
January 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 (Maryland), United States climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 4.6°C-2.7°C | -2.7°C | 80 | 8.5 | 9.710 h |
| February | 6.3°C-2.1°C | -2.1°C | 74 | 8.5 | 10.711 h |
| March | 10.8°C1.6°C | 1.6°C | 102 | 10.3 | 11.912 h |
| April | 17.1°C7.3°C | 7.3°C | 90 | 10.2 | 13.213 h |
| May | 22.1°C12.9°C | 12.9°C | 97 | 11.3 | 14.314 h |
| June | 26.9°C18.1°C | 18.1°C | 95 | 11.6 | 14.915 h |
| July | 29.5°C20.9°C | 20.9°C | 108 | 12.1 | 14.615 h |
| August | 28.4°C20.2°C | 20.2°C | 95 | 10.8 | 13.714 h |
| September | 24.6°C16.6°C | 16.6°C | 116 | 9.1 | 12.512 h |
| October | 18.3°C10.3°C | 10.3°C | 91 | 8.0 | 11.211 h |
| November | 12.1°C4.5°C | 4.5°C | 76 | 7.6 | 10.110 h |
| December | 6.9°C-0.1°C | -0.1°C | 94 | 9.0 | 9.59 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
January in nearby cities
- Baltimore in JanuaryUnited States · 20 kmHigh 4.8°C · Low -2.9°C · 90 mm rain
- Silver Spring in JanuaryUnited States · 32 kmHigh 5.2°C · Low -2.6°C · 78 mm rain
- Germantown in JanuaryUnited States · 38 kmHigh 4.7°C · Low -3.1°C · 78 mm rain
- Washington in JanuaryUnited States · 42 kmHigh 6.0°C · Low -2.3°C · 78 mm rain
- Arlington (Virginia), United States in JanuaryUnited States · 46 kmHigh 5.5°C · Low -2.6°C · 78 mm rain
- Alexandria, United States in JanuaryUnited States · 52 kmHigh 6.1°C · Low -1.9°C · 77 mm rain
- Centreville in JanuaryUnited States · 68 kmHigh 5.4°C · Low -2.2°C · 77 mm rain
- Wilmington (Delaware), United States in JanuaryUnited States · 124 kmHigh 4.5°C · Low -3.0°C · 82 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 (Maryland), United States year overview and on the Sources, method and limits page.