The best times to visit Washington for ideal weather are

April 16th to June 10th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

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Weather in Washington

Temperature

Average temperatures in Washington vary drastically. Considering humidity, temperatures feel nice some of the year, but often too hot in the summer and cold in the winter with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 21st percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Washington, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 92.4°F (33.6°C) with temperatures rarely dropping below 72.6°F (22.6°C) at night.

Washington Temperatures (Fahrenheit)

Key
High
Average
Low

Washington Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Washington Perceived Temperature (F)

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High
Average
Low

Washington Perceived Temperature (C)

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High
Average
Low

 

Average Washington Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 46.9 36.4 27.8
Feb 48.5 37.3 27.8
Mar 59.7 47.1 36.7
Apr 71 57.8 46.6
May 79.8 68 57.3
Jun 88 76.9 67.2
Jul 91.3 80.8 71.5
Aug 89.3 78.6 69.8
Sep 83.5 72.5 63.3
Oct 72.1 60.7 51.4
Nov 60.4 49.3 40.1
Dec 51.9 42.3 34.3

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 8.3 2.4 -2.3
Feb 9.2 2.9 -2.3
Mar 15.4 8.4 2.6
Apr 21.7 14.3 8.1
May 26.6 20 14.1
Jun 31.1 24.9 19.6
Jul 32.9 27.1 21.9
Aug 31.8 25.9 21
Sep 28.6 22.5 17.4
Oct 22.3 15.9 10.8
Nov 15.8 9.6 4.5
Dec 11.1 5.7 1.3


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Washington are September, February, and then November. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid to late September. For example, on the week of September 17th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in late December with an average of 2 days of significant precipitation the week of December 24th.

When can you find snow in Washington? Weather stations report a good amount of seasonal snow likely to be deepest around December, especially close to early February. The best time to ski (if at all) in Washington is often around around December 17th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chanceof Precipitation

The graph below shows the % chance of rainy and snowy days in Washington.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Washington (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 18% 1.8 2.5
Feb 18% 4.6 2.3
Mar 23% 2.5 3.5
Apr 24% 0 3.4
May 24% 0 4.4
Jun 24% 0 5
Jul 19% 0 3.7
Aug 23% 0 3.1
Sep 17% 0 3.5
Oct 20% 0 4.9
Nov 18% 0 2.3
Dec 27% 4.8 4.2

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 18 4.6 6.4
Feb 18 11.7 5.8
Mar 23 6.4 8.9
Apr 24 0 8.6
May 24 0 11.2
Jun 24 0 12.7
Jul 19 0 9.4
Aug 23 0 7.9
Sep 17 0 8.9
Oct 20 0 12.4
Nov 18 0 5.8
Dec 27 12.2 10.7

 

Humidity and Wind

Washington has some comfortably humid months, with slightly drier months on the other side of the year. The least humid month is February (42.9% relative humidity), and the most humid month is October (56.4%).

Wind in Washington is usually moderate. The windiest month is March, followed by February and April. March’s average wind speed of around 8.4 knots (9.6 MPH or 15.5 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late February and early March where average top sustained speeds reach 17.2 knots, which is considered a fresh breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Washington.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 7.6 Gentle breeze 14.4 Significant breeze
Feb 8.2 Gentle breeze 16.1 Significant breeze
Mar 8.4 Gentle breeze 15.9 Significant breeze
Apr 7.9 Gentle breeze 15.6 Significant breeze
May 7.1 Gentle breeze 14.2 Significant breeze
Jun 6.9 Light breeze 14.8 Significant breeze
Jul 6.4 Light breeze 13.9 Significant breeze
Aug 6.1 Light breeze 12.7 Significant breeze
Sep 6.4 Light breeze 12.4 Significant breeze
Oct 6.9 Light breeze 13.3 Significant breeze
Nov 7 Gentle breeze 13.2 Significant breeze
Dec 7.1 Gentle breeze 13.8 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 45.3%
Feb 42.9%
Mar 44%
Apr 45.9%
May 54.1%
Jun 53.4%
Jul 51.7%
Aug 53.8%
Sep 55.7%
Oct 56.4%
Nov 50.8%
Dec 54.5%

 

Is it Safe to Travel to Washington?

Our best data indicates this area is generally safe. As of Jan 19, 2018 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories


 

The Busiest and Least Crowded Months

The busiest month for tourism in Washington, DC, US is March, followed by July and June. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Washington in December. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is very reliable. Displayed data is calculated relative to the peak, so a score of 57.1 in December means 57.1% of the tourists vs. March.


Overall Washington Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderate. Highs range from 86.6°F (30.3°C) and 51.8°F (11°C) with far warmer temperatures in the later months. Rain is somewhat common with roughly 7 days of significant precipitation per month. Spring is the busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see moderate precipitation with 6 to 7 days of precipitation per month. June – August is the second busiest season for tourism in Washington, so lodging and other accommodations may cost slightly more.

Fall (September through November)

Fall daily highs range from 88.2°F (31.2°C) and 55.7°F (13.2°C), which will feel comfortable given the humidity and wind. It rains or snows a significant amount: 5 to 6 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is too cold this time of year in Washington to be enjoyable for warm weather travelers. The average high during this season is between 53.1°F (11.7°C) and 43.1°F (6.2°C). On average, it rains or snows a fair amount: 5 to 8 times per month. These times of year are fairly slow with tourists.

 

Best Times to Travelthe United States › Washington, DC, US

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