Monthly weather forecast and climate
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 temperature in the range of an average high of 40.6°F (4.8°C) and an average low of 27.5°F (-2.5°C). The coldest month is January, with an average high-temperature of 40.6°F (4.8°C) and an average low-temperature of 27.5°F (-2.5°C). Weather in January »

Weather in February

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

Weather in March

The first month of the spring, March, is a fresh month in Washington, District of Columbia, with average temperature fluctuating between 53.2°F (11.8°C) and 37.2°F (2.9°C). In Washington, the average high-temperature marginally rises, from a chilly 44.8°F (7.1°C) in February, to a fresh 53.2°F (11.8°C). Weather in March »

Weather in April

April in Washington, District of Columbia, is a comfortable spring month, with average temperature ranging between min 47.3°F (8.5°C) and max 65.1°F (18.4°C). In Washington, the average high-temperature increases, from a cool 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 warm month in Washington, District of Columbia, with average temperature fluctuating between 74.5°F (23.6°C) and 57°F (13.9°C). In Washington, the average high-temperature 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

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

Weather in July

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

Weather in August

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

Weather in October

October, like September, in Washington, District of Columbia, is another enjoyable autumn month, with temperature in the range of an average low of 51.3°F (10.7°C) and an average high of 66.9°F (19.4°C). In Washington, the average high-temperature drops, from a warm 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 average temperature ranging between max 54.9°F (12.7°C) and min 39.7°F (4.3°C). In Washington, the average high-temperature in November drops, 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 average temperature fluctuating between 34.2°F (1.2°C) and 46°F (7.8°C). In December, the average high-temperature slightly decreases, from a fresh 54.9°F (12.7°C) in November, to a chilly 46°F (7.8°C). Weather in December »
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FAQ

What is the coldest month in Washington?

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

How many days does it rain in Washington?

Throughout the year, there are 149.1 rainfall days, and 26.14" (664mm) of precipitation is accumulated.

What is the driest month in Washington?

The month with the least rainfall is January when the rain falls for 9.3 days and typically collects 1.57" (40mm) of precipitation.

When does it snow in Washington?

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

How much does it snow in Washington?

Throughout the year, there are 11.7 snowfall days, and 6.3" (160mm) of snow is accumulated.

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.

What is the month with the least sunshine in Washington?

January, February and December, with an average of 5.1h of sunshine, are months with the least sunshine in Washington, District of Columbia.

What are the months with the lowest UV index in Washington?

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

What are the least humid months in Washington?

April and July, with an average relative humidity of 71%, are the least humid months in Washington.

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?

The most humid month is May, with an average relative humidity of 76%.

When are the longest days in Washington?

June has the longest days of the year, with an average of 14.9h of daylight.

What is the month with the highest UV index in Washington?

With an average maximum UV index of 7, June is the month with the highest UV index in Washington, District of Columbia.

What 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), July is the warmest month in Washington.

What month has the most sunshine in Washington?

The month with the most sunshine is July, with an average of 10.7h of sunshine.

What is the rainiest month in Washington?

The month with the most rainfall in Washington 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?

With an average of 9.5h of daylight, December has the shortest days of the year in Washington, District of Columbia.

Average pressure
Washington, DC

Average pressure - Washington, DC

The month with the highest atmospheric pressure is November (1020.6mbar).
The month with the lowest atmospheric pressure is June (1014.1mbar).

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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 (12.7km/h).
The calmest month (with the lowest average wind speed) is August (8.1km/h).

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Average humidity
Washington, DC

Average humidity - Washington, DC

The month with the highest relative humidity is May (76%).
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 (88mm).
The driest month (with the least rainfall) is January (40mm).

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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 (55mm).
Months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

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Average snowfall days
Washington, DC

Average snowfall days - Washington, DC

Months with the highest number of snowfall days are January and February (3.8 days).
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: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

The month with the most sunshine is July (Average sunshine: 10.7h).
Months with the least sunshine are January, February and December (Average sunshine: 5.1).

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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

Months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is May (8km).

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