District of Columbia climate
World Climates covers 1 place in District of Columbia. Washington has a humid subtropical climate (Köppen Cfa).
Climate of Washington at a glance
The year average in Washington is 14 °C56 °F. The warmest month is July, with an average high of 31 °C88 °F. The coldest is January, with an average low of −4 °C26 °F. About 1,153 mm45 in of precipitation falls in a year. June is the wettest month and January the driest. By our comfort score, the best months to visit are April–June and September and October.
Frequently asked questions
How many places in District of Columbia does this site cover?
World Climates has climate data for one place in District of Columbia: Washington. Its page has monthly averages for temperature, rainfall, humidity and daylight.
What is the warmest month in Washington?
July is the warmest month, with an average high of 31 °C88 °F. January is the coldest, with an average low of −4 °C26 °F.
When does it rain the most in Washington?
June is the wettest month, with about 118 mm4.7 in of precipitation. The yearly total is about 1,153 mm45 in.
When is the best time to visit Washington?
By our comfort score, the most comfortable months are April–June and September and October. The score is based on long-term averages, not on a forecast.
Climate of every place in District of Columbia
| Place | Year | Max high | Min low | Precip. |
|---|---|---|---|---|
| Washington | 14 | 31 | −4 | 1,153 |
Year = annual mean temperature; max high = average high of the warmest month; min low = average low of the coldest month; precip. = annual total. Temperatures in °C°F, precipitation in mminches. Sorted by population.
Other cities over 100,000 people
These cities share a NASA POWER grid cell with a larger place, so their averages are shown on that page:
- Arlington → data of Washington
- Alexandria → data of Washington
Data: NASA POWER climatology 2001–2025 (MERRA-2 reanalysis, CERES satellite data) — grid-cell averages, not station records. Sources and method.