Washington
District of Columbia, USA
Long-term weather forecast
Long-term weather forecast

June weather forecast and climate
Washington, DC

Stunning reflective view of rows of jacaranda trees in spring in the tidal basin of the Washington Monument in DC
Stunning reflective view of rows of jacaranda trees in spring in the tidal basin of the Washington Monument in DC
Summer starts in June in Washington, and it is hot and humid. It is an excellent time for paddle boating or kayaking on the Potomac River and admiring the various memorials while moving through the water.
Daily average temperatures rise to a warm 84°F (28.9°C), and numerous outdoor activities beckon the tourists. Heat is not an issue in air-conditioned places like the Smithsonian Air and Space Museum or the Library of Congress. Hop into a restaurant for well-made food, drink, and a break from the sweltering heat.

What is the temperature in June in Washington?

In Washington, District of Columbia, in June, the average high-temperature is 84.2°F (29°C), and the average low-temperature is 66.4°F (19.1°C). The average heat index (a.k.a. 'feels like', 'real feel'), that combines both air temperature and relative humidity, in June is appraised at 89.6°F (32°C).

What is the average humidity in June in Washington?

In Washington, the average relative humidity in June is 65.8%.

How much does it rain in Washington in June?

In Washington, District of Columbia, in June, it is raining for 10.7 days, with typically 3.8" (96mm) of accumulated precipitation.

When are the longest days in Washington?

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

How many hours of daylight does Washington have in June?

The average length of the day in June is 14.9h.

What month has the most sunshine in Washington?

The month with the most sunshine in Washington, District of Columbia, is June, with an average of 9.4h of sunshine.

How long on average sun shines in June in Washington?

In Washington, District of Columbia, the average sunshine in June is 9.4h.

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

June and July, with an average maximum UV index of 9, are months with the highest UV index.

How high is the UV index in June in Washington?

In June, the average daily maximum UV index in Washington is 9. A UV Index estimate of 8 to 10 represents a very high health risk from the exposure to the Sun's UV radiation.
Average temperature in June - Washington, DC
  • Average high temperature in June: 29°C

The warmest month (with the highest average high temperature) is July (31.3°C).
The month with the lowest average high temperature is January (6.3°C).

  • Average low temperature in June: 19.1°C

The month with the highest average low temperature is July (21.7°C).
The coldest month (with the lowest average low temperature) is January (-1.9°C).

Average humidity in June - Washington, DC
  • Average humidity in June: 65.8%

The month with the highest relative humidity is September (69.7%).
The month with the lowest relative humidity is April (58%).

Average rainfall in June - Washington, DC
  • Average rainfall in June: 96mm

The wettest month (with the highest rainfall) is May (101.3mm).
The driest month (with the lowest rainfall) is February (66.5mm).

Average rainfall days in June - Washington, DC
  • Average rainfall days in June: 10.7 days

The month with the highest number of rainy days is May (11.1 days).
The month with the lowest number of rainy days is October (7.7 days).

Average snowfall in June - Washington, DC
  • Average snowfall in June: 0mm

The month with the highest snowfall is February (144.8mm).
Months with the lowest snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in June - Washington, DC
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (3 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average daylight in June / Average sunshine in June - Washington, DC
  • Average daylight in June: 14.9h

The month with the longest days is June (Average daylight: 14.9h).
The month with shortest days is December (Average daylight: 9.5h).

  • Average sunshine in June: 9.4h

The month with most sunshine is June (Average sunshine: 9.4h).
The month with least sunshine is December (Average sunshine: 4.3h).

Average UV index in June - Washington, DC
  • Average UV index in June: 9

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January and December (UV index 2).