When to go
The Best Time to Visit Washington, D.C.
Month-by-month climate data for Washington, D.C., United States — daily highs and lows, rain days, and an honest verdict for every month of the year.
Timing is the first real decision when planning Washington, D.C.— it drives crowds, prices and what's actually open. Here's how the year breaks down so you can pick dates that fit the trip you're building, not just the weather.
March–May, September–October. Cherry blossoms in late March/early April; September brings cool sunny days without summer humidity.
Warmest in Washington, D.C.: Jul (32°C / 90°F) · Coolest: Jan (7°C / 45°F) · Wettest: Aug (~16 rain days)
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)
Washington, D.C. climate, month by month
January
7° / -1°C
~9 rain days
Fair
February
10° / 0°C
~11 rain days
Fair
March
14° / 4°C
~10 rain days
Good
April
19° / 8°C
~12 rain days
Excellent
May
23° / 12°C
~11 rain days
Excellent
June
29° / 18°C
~12 rain days
Good
July
32° / 21°C
~15 rain days
Fair
August
30° / 20°C
~16 rain days
Good
September
26° / 16°C
~11 rain days
Excellent
October
20° / 11°C
~8 rain days
Excellent
November
14° / 5°C
~8 rain days
Good
December
9° / 1°C
~9 rain days
Fair
Plan around it
Dates locked in? Start from the Washington, D.C. travel guide or jump straight to a 3-day, 5-day or 7-day itinerary.