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

January 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
The winter brings the coldest temperatures of the year in January with the mercury in the range of 28°F (-2.2°C) to 44°F (6.7°C), accompanied by a moderate amount of snow.
Wear a warm winter coat, gloves, and thermals before stepping outside in the freezing weather, as the days are also chilly.
Travelers who lack snow experience should avoid driving motor vehicles, especially on untreated roads and thin ice. A White Christmas and snowy New Year is a remarkable combination for visitors who rarely get a chance to experience snow.

What is the coldest month in Washington?

The coldest month in Washington is Enero, with an average high-temperature of 43.3°F (6.3°C) and an average low-temperature of 28.6°F (-1.9°C).

What is the temperature in Enero in Washington?

In Washington, in Enero, the average high-temperature is 43.3°F (6.3°C), and the average low-temperature is 28.6°F (-1.9°C).

What is the average humidity in Enero in Washington?

In Enero, the average relative humidity in Washington, District of Columbia, is 62.1%.

How much does it rain in Washington in Enero?

In Enero, in Washington, the rain falls for 9.6 days. Throughout Enero, 2.81" (71.4mm) of precipitation is accumulated.

How many days does it snow in Enero in Washington?

In Washington, District of Columbia, in Enero, during 3 snowfall days, 5.6" (142.2mm) of snow is typically accumulated.

How many hours of daylight does Washington have in Enero?

The average length of the day in Enero in Washington is 9.8h.

How many hours of sunshine does Washington have in Enero?

The average sunshine in Enero in Washington is 4.7h.

When is the lowest UV index in Washington?

Months with the lowest UV index are Enero and Diciembre, with an average maximum UV index of 2.

How high is the UV index in Enero in Washington?

The average daily maximum UV index in Enero in Washington is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to the UV radiation.
Average temperature in January - Washington, DC
  • Average high temperature in January: 43.4°F

The warmest month (with the highest average high temperature) is July (88.4°F).
The month with the lowest average high temperature is January (43.4°F).

  • Average low temperature in January: 28.6°F

The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).

Average humidity in January - Washington, DC
  • Average humidity in January: 62.1%

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

Average rainfall in January - Washington, DC
  • Average rainfall in January: 2.8"

The wettest month (with the highest rainfall) is May (4").
The driest month (with the lowest rainfall) is February (2.6").

Average rainfall days in January - Washington, DC
  • Average rainfall days in January: 9.6 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 January - Washington, DC
  • Average snowfall in January: 5.6"

The month with the highest snowfall is February (5.7").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in January - Washington, DC
  • Average snowfall days in January: 3 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 January / Average sunshine in January - Washington, DC
  • Average daylight in January: 9.8h

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 January: 4.7h

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 January - Washington, DC
  • Average UV index in January: 2

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).