The best times to visit Washington DC for ideal weather are

April 9th to June 10th

or

September 3rd to October 28th

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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Washington DC Travel Guide

  • Safety
  • The busiest and least popular months
  • Overall travel experience by time of year
  • Weather in Washington DC

    Temperature

    Average temperatures in Washington DC vary somewhat and are seasonally temperate. The area is in the top 69 percent of tourist destinations for pleasant weather. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Washington DC, 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 88.5°F (31.4°C) with temperatures rarely dropping below 75.5°F (24.2°C) at night.

    Washington DC Temperatures (Fahrenheit)

    Key
    High
    Average
    Low

    Washington DC 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 DC Perceived Temperature (F)

    Key
    High
    Average
    Low

    Washington DC Perceived Temperature (C)

    Key
    High
    Average
    Low

     

    Average Washington DC 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 44.7 35 26.9
    Feb 46.7 36.8 28.5
    Mar 55.9 45.2 36.1
    Apr 64.5 53.6 44.1
    May 72.9 62.3 52.7
    Jun 80.6 70.2 60.7
    Jul 83.8 73.5 64.4
    Aug 83.2 72.7 63.5
    Sep 77.8 66.9 57.8
    Oct 67.4 56.8 47.9
    Nov 56.2 46.1 37.6
    Dec 47.5 38.6 31.1

    Show Celsius

    Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
    Jan 7.1 1.7 -2.8
    Feb 8.2 2.7 -1.9
    Mar 13.3 7.3 2.3
    Apr 18.1 12 6.7
    May 22.7 16.8 11.5
    Jun 27 21.2 15.9
    Jul 28.8 23.1 18
    Aug 28.4 22.6 17.5
    Sep 25.4 19.4 14.3
    Oct 19.7 13.8 8.8
    Nov 13.4 7.8 3.1
    Dec 8.6 3.7 -0.5

     
    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.

    Chance of Precipitation

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

    Key
    Days with precipitation

    Snow on the Ground

    The graph below shows the average snow on the ground in Washington DC (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 0 0
    Feb 0 0
    Mar 0 0
    Apr 0 0
    May 0 0
    Jun 0 0
    Jul 0 0
    Aug 0 0
    Sep 0 0
    Oct 0 0
    Nov 0 0
    Dec 0 0

    Show Centimeters

    Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
    Jan 0 0
    Feb 0 0
    Mar 0 0
    Apr 0 0
    May 0 0
    Jun 0 0
    Jul 0 0
    Aug 0 0
    Sep 0 0
    Oct 0 0
    Nov 0 0
    Dec 0 0
    –>

     

    Humidity and Wind

    Washington DC has unknown humidity (due to reporting from weather stations of 0%).

    Wind in Washington DC is usually moderate. The windiest month is February, followed by January and March. February’s average wind speed of around 6.5 knots (7.5 MPH or 12 KPH) is considered “light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early-to-mid-February where average top sustained speeds reach 15 knots, which is considered a moderate breeze.

    Relative Humidity (%)

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

    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.

    Month Avg. Wind Meaning (Beaufort) Avg. Maximum Sustained Wind Meaning (Beufort)
    Jan 6.1 a light breeze 12.2 a moderate breeze
    Feb 6.5 a light breeze 13.4 a moderate breeze
    Mar 6.1 a light breeze 11.7 a moderate breeze
    Apr 5.9 a light breeze 12 a moderate breeze
    May 5.1 a light breeze 10.4 a moderate breeze
    Jun 5.1 a light breeze 10.3 a gentle breeze
    Jul 4.9 a light breeze 10.1 a moderate breeze
    Aug 4.5 a light breeze 9.3 a gentle breeze
    Sep 4.4 a light breeze 9 a moderate breeze
    Oct 4.9 a light breeze 10 a gentle breeze
    Nov 5 a light breeze 9.9 a moderate breeze
    Dec 5.6 a light breeze 11.3 a moderate breeze

    Show Relative Humidity by Month

    Month Avg. Relative Humidity
    Jan N/A
    Feb N/A
    Mar N/A
    Apr N/A
    May N/A
    Jun N/A
    Jul N/A
    Aug N/A
    Sep N/A
    Oct N/A
    Nov N/A
    Dec N/A

     

    Is it Safe to Travel to Washington DC?

    As of 6/22/2017 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, United States 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 DC 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. 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 DC Travel Experience by Season

    Spring (March through May)

    Humidity and temperatures combine to make this season feel moderate. Highs range from 83.3°F (28.5°C) and 46.3°F (7.9°C) with warmer temperatures in the later months. 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 comfortable. June – August is busy season for tourism in Washington DC, so lodging and other accommodations may cost slightly more.

    Fall (September through November)

    Fall daily highs range from 83.6°F (28.7°C) and 52.6°F (11.4°C), which will feel comfortable given the humidity and wind. Tourism is the slowest during these months due to the weather, so hotels may be lower priced.

    Winter (December through February)

    Weather is far too cold this time of year in Washington DC to be enjoyable for warm weather travelers. The average high during this season is between 49.4°F (9.7°C) and 40°F (4.4°C). These times of year are fairly slow with tourists.

     

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