Climate averages 1991–2020
Germantown weather
in March.
A cool, wet month: the 9th warmest and the joint 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cool month in Germantown: daytime highs average 11.2°C and nights cool to about 1.2°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 97 mm of rain on roughly 10 days, which makes March a wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 55 min on an average March day.
The nearest other city in this atlas is Silver Spring (29 km away). In March its highs average 11.6°C, about as warm as Germantown, with 99 mm of rain.
Among the 498 cities listed in the United States, Germantown ranks joint 323rd of 498 for the warmest March highs and joint 335th of 498 for the driest March (rainfall, lowest first). The mean March high of those 498 cities is 14.9°C; Germantown is 3.7°C cooler than that mean.
From March to April, average highs rise by 6.5°C to 17.7°C, and monthly rainfall falls from 97 mm to 87 mm.
The annual picture
March 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
Germantown climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.7°C-3.1°C | -3.1°C | 78 | 8.6 | 9.810 h |
| February | 6.6°C-2.5°C | -2.5°C | 71 | 8.4 | 10.711 h |
| March, selected | 11.2°C1.2°C | 1.2°C | 97 | 10.2 | 11.912 h |
| April | 17.7°C6.8°C | 6.8°C | 87 | 10.4 | 13.213 h |
| May | 22.6°C12.5°C | 12.5°C | 97 | 11.5 | 14.314 h |
| June | 27.6°C17.6°C | 17.6°C | 90 | 10.8 | 14.915 h |
| July | 30.1°C20.4°C | 20.4°C | 102 | 11.2 | 14.615 h |
| August | 29.0°C19.6°C | 19.6°C | 85 | 10.4 | 13.714 h |
| September | 25.1°C16.0°C | 16.0°C | 113 | 9.3 | 12.512 h |
| October | 18.6°C9.7°C | 9.7°C | 87 | 7.8 | 11.211 h |
| November | 12.1°C3.9°C | 3.9°C | 76 | 7.7 | 10.110 h |
| December | 6.8°C-0.6°C | -0.6°C | 89 | 8.8 | 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
March in nearby cities
- Silver Spring in MarchUnited States · 29 kmHigh 11.6°C · Low 1.6°C · 99 mm rain
- Arlington (Virginia), United States in MarchUnited States · 36 kmHigh 12.0°C · Low 1.7°C · 99 mm rain
- Washington in MarchUnited States · 37 kmHigh 12.5°C · Low 2.0°C · 99 mm rain
- Columbia (Maryland), United States in MarchUnited States · 38 kmHigh 10.8°C · Low 1.6°C · 102 mm rain
- Centreville in MarchUnited States · 39 kmHigh 11.9°C · Low 2.2°C · 96 mm rain
- Alexandria, United States in MarchUnited States · 45 kmHigh 12.5°C · Low 2.3°C · 98 mm rain
- Baltimore in MarchUnited States · 58 kmHigh 10.9°C · Low 1.3°C · 114 mm rain
- Wilmington (Delaware), United States in MarchUnited States · 161 kmHigh 10.6°C · Low 1.2°C · 105 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 Germantown) is explained once on the Germantown year overview and on the Sources, method and limits page.