Climate and monthly weather forecast
Washington, DC

Rows of jacaranda trees in spring in the tidal basin of the Washington Monument in Washington city, DC, USA
Rows of jacaranda trees in spring in the tidal basin of the Washington Monument in Washington city, DC, USA

Weather in January

January, the same as December, is a wintry winter month in Washington, District of Columbia, with an average temperature varying between 27.5°F (-2.5°C) and 40.6°F (4.8°C). With an average high-temperature of 40.6°F (4.8°C) and an average low-temperature of 27.5°F (-2.5°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Washington, is a chilly month, with an average temperature fluctuating between 44.8°F (7.1°C) and 30.2°F (-1°C). In Washington, the average high-temperature in February is essentially the same as in January - a chilly 44.8°F (7.1°C). Weather in February »

Weather in March

March, the first month of the spring in Washington, is a fresh month, with temperature in the range of an average high of 53.2°F (11.8°C) and an average low of 37.2°F (2.9°C). In March, the average high-temperature slightly increases from a chilly 44.8°F (7.1°C) in February to a cool 53.2°F (11.8°C). Weather in March »

Weather in April

April in Washington, District of Columbia, is an enjoyable spring month, with an average temperature fluctuating between 47.3°F (8.5°C) and 65.1°F (18.4°C). In April, the average high-temperature increases from a fresh 53.2°F (11.8°C) in March to a comfortable 65.1°F (18.4°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Washington, District of Columbia, with an average temperature fluctuating between 57°F (13.9°C) and 74.5°F (23.6°C). In Washington, the average high-temperature in May increases from an enjoyable 65.1°F (18.4°C) in April to a warm 74.5°F (23.6°C). Weather in May »

Weather in June

June, the first month of the summer in Washington, is still a warm month, with temperature in the range of an average low of 64.2°F (17.9°C) and an average high of 82.8°F (28.2°C). In Washington, District of Columbia, the average high-temperature in June marginally rises from 74.5°F (23.6°C) in May to a still warm 82.8°F (28.2°C). Weather in June »

Weather in July

July in Washington, District of Columbia, is a hot summer month, with an average temperature fluctuating between 88°F (31.1°C) and 69.1°F (20.6°C). July is the warmest month, with an average high-temperature of 88°F (31.1°C) and an average low-temperature of 69.1°F (20.6°C). In July, the average heat index is calculated to be a very hot 100.8°F (38.2°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Washington, District of Columbia, with an average temperature fluctuating between 68°F (20°C) and 85.8°F (29.9°C). In August, the average high-temperature is essentially the same as in July - a moderately hot 85.8°F (29.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Washington, District of Columbia, with an average temperature varying between 61.9°F (16.6°C) and 78.4°F (25.8°C). In September, the average high-temperature marginally drops from 85.8°F (29.9°C) in August to a still moderately hot 78.4°F (25.8°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Washington, District of Columbia, with an average temperature fluctuating between 66.9°F (19.4°C) and 51.3°F (10.7°C). In Washington, the average high-temperature in October decreases from a moderately hot 78.4°F (25.8°C) in September to an enjoyable 66.9°F (19.4°C). Weather in October »

Weather in November

November, the last month of the autumn in Washington, is also a fresh month, with an average temperature fluctuating between 39.7°F (4.3°C) and 54.9°F (12.7°C). In November, the average high-temperature decreases from an enjoyable 66.9°F (19.4°C) in October to a fresh 54.9°F (12.7°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Washington, District of Columbia, with an average temperature fluctuating between 34.2°F (1.2°C) and 46°F (7.8°C). In Washington, the average high-temperature in December slightly decreases from a fresh 54.9°F (12.7°C) in November to a frosty 46°F (7.8°C). Weather in December »
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FAQ

What is the coldest month in Washington?

With an average high-temperature of 40.6°F (4.8°C) and an average low-temperature of 27.5°F (-2.5°C), January is the coldest month.

What is the driest month in Washington?

January is the month with the least rainfall in Washington, District of Columbia. Rain falls for 9.3 days and accumulates 1.57" (40mm) of precipitation.

How many days does it rain in Washington?

In Washington, District of Columbia, during the entire year, the rain falls for 149.1 days and collects up to 26.14" (664mm) of precipitation.

When does it snow in Washington?

Months with snowfall in Washington, District of Columbia, are January through March and December.

What is the snowiest month in Washington?

January is the month with the most snowfall. Snow falls for 3.8 days and accumulates 2.17" (55mm) of snow.

How many days does it snow in Washington?

In Washington, District of Columbia, during the entire year, snow falls for 11.7 days and aggregates up to 6.3" (160mm) of snow.

What is the month with the least sunshine in Washington?

The months with the least sunshine are January, February and December, with an average of 5.1h of sunshine.

When is the lowest UV index in Washington?

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Washington.

When is Daylight Saving Time (DST) in Washington?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Washington, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

What are the least humid months in Washington?

The months with the lowest humidity in Washington, District of Columbia, are April and July, with an average relative humidity of 71%.

When it does not snow in Washington?

April through November are months without snowfall in Washington, District of Columbia.

What is the most humid month in Washington?

With an average relative humidity of 76%, May is the most humid month in Washington, District of Columbia.

When are the longest days in Washington?

June has the longest days of the year, with an average of 14h and 51min of daylight.

When is the highest UV index in Washington?

June is the month with the highest UV index, with an average maximum UV index of 7.

What is the warmest month in Washington?

July is the warmest month in Washington, with an average high-temperature of 88°F (31.1°C) and an average low-temperature of 69.1°F (20.6°C).

What month has the most sunshine in Washington?

With an average of 10.7h of sunshine, July has the most sunshine of the year in Washington, District of Columbia.

What is the rainiest month in Washington?

The month with the most rainfall is August, when the rain falls for 15.5 days and typically aggregates up to 3.46" (88mm) of precipitation.

What is the month with the shortest days in Washington?

December has the shortest days of the year, with an average of 9h and 29min of daylight.

Average temperature
Washington, DC

Average temperature - Washington, DC

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.6°F).

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

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Average pressure
Washington, DC

Average pressure - Washington, DC

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed
Washington, DC

Average wind speed - Washington, DC

The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity
Washington, DC

Average humidity - Washington, DC

The month with the highest relative humidity is May (76%).
The months with the lowest relative humidity are April and July (71%).

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Average rainfall
Washington, DC

Average rainfall - Washington, DC

The wettest month (with the highest rainfall) is August (3.46").
The driest month (with the least rainfall) is January (1.57").

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Average rainfall days
Washington, DC

Average rainfall days - Washington, DC

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is November (8.1 days).

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Average snowfall
Washington, DC

Average snowfall - Washington, DC

The month with the highest snowfall is January (2.17").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days
Washington, DC

Average snowfall days - Washington, DC

The months with the highest number of snowfall days are January and February (3.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Washington, DC

Average daylight / Average sunshine - Washington, DC

The month with the longest days is June (Average daylight: 14h and 51min).
The month with the shortest days is December (Average daylight: 9h and 29min).

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).

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Average sunshine days
Washington, DC

Average sunshine days - Washington, DC

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (12.8 days).

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Average visibility
Washington, DC

Average visibility - Washington, DC

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

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