Climate and monthly weather forecast
Washington, PA

Weather in January

January, the same as December, is another cold winter month in Washington, Pennsylvania, with an average temperature ranging between max 33.6°F (0.9°C) and min 20.8°F (-6.2°C). With an average high-temperature of 33.6°F (0.9°C) and an average low-temperature of 20.8°F (-6.2°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Washington, is also a wintry month, with an average temperature fluctuating between 23.7°F (-4.6°C) and 38.3°F (3.5°C). In February, the average high-temperature is relatively the same as in January - a still wintry 38.3°F (3.5°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Washington, Pennsylvania, with an average temperature varying between 48.6°F (9.2°C) and 31.5°F (-0.3°C). In March, the average high-temperature rises from a cold 38.3°F (3.5°C) in February to a chilly 48.6°F (9.2°C). Weather in March »

Weather in April

April is a comfortable spring month in Washington, Pennsylvania, with temperature in the range of an average high of 61.3°F (16.3°C) and an average low of 41.2°F (5.1°C). In Washington, the average high-temperature in April increases from a frosty 48.6°F (9.2°C) in March to a comfortable 61.3°F (16.3°C). Weather in April »

Weather in May

May, the last month of the spring in Washington, is an agreeable month, with an average temperature ranging between max 72.1°F (22.3°C) and min 51.4°F (10.8°C). In May, the average high-temperature rises from a comfortable 61.3°F (16.3°C) in April to an agreeable 72.1°F (22.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Washington, Pennsylvania, with an average temperature ranging between min 57.7°F (14.3°C) and max 78.8°F (26°C). In Washington, the average high-temperature in June marginally rises from an agreeable 72.1°F (22.3°C) in May to a moderately hot 78.8°F (26°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Washington, Pennsylvania, with temperature in the range of an average low of 61.9°F (16.6°C) and an average high of 83.3°F (28.5°C). The warmest month is July, with an average high-temperature of 83.3°F (28.5°C) and an average low-temperature of 61.9°F (16.6°C). The average heat index in July is appraised at a hot 91°F (32.8°C). Weather in July »

Weather in August

August, the last month of the summer in Washington, is another warm month, with temperature in the range of an average low of 59.9°F (15.5°C) and an average high of 82°F (27.8°C). In Washington, the average high-temperature in August is essentially the same as in July - a still moderately hot 82°F (27.8°C). Weather in August »

Weather in September

September, the first month of the autumn in Washington, is still a warm month, with an average temperature ranging between min 54.9°F (12.7°C) and max 75.7°F (24.3°C). In September, the average high-temperature slightly decreases from a moderately hot 82°F (27.8°C) in August to a still warm 75.7°F (24.3°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Washington, Pennsylvania, with temperature in the range of an average low of 45°F (7.2°C) and an average high of 62.4°F (16.9°C). In Washington, the average high-temperature in October drops from a moderately hot 75.7°F (24.3°C) in September to a comfortable 62.4°F (16.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Washington, Pennsylvania, with an average temperature ranging between min 33.8°F (1°C) and max 49.5°F (9.7°C). In November, the average high-temperature drops from a comfortable 62.4°F (16.9°C) in October to a chilly 49.5°F (9.7°C). Weather in November »

Weather in December

December, the first month of the winter in Washington, is also a wintry month, with an average temperature ranging between max 40.1°F (4.5°C) and min 28.6°F (-1.9°C). In Washington, Pennsylvania, the average high-temperature in December drops from a frosty 49.5°F (9.7°C) in November to a cold 40.1°F (4.5°C). Weather in December »
[Resources]

FAQ

What is the coldest month in Washington?

The coldest month is January, with an average high-temperature of 33.6°F (0.9°C) and an average low-temperature of 20.8°F (-6.2°C).

What is the driest month in Washington?

The months with the least rainfall in Washington are January and November Rain falls for 7.5 days and accumulates 0.94" (24mm) of rain.

How many days does it rain in Washington?

Throughout the year, there are 143 rainfall days, and 14.8" (376mm) of precipitation is accumulated.

When does it snow in Washington?

Months with snowfall in Washington are January through May, October through December.

How many days does it snow in Washington?

In Washington, during the entire year, snow falls for 33.5 days and aggregates up to 4.88" (124mm) of snow.

What is the month with the least sunshine in Washington?

January has the least sunshine of the year in Washington, Pennsylvania, with an average of 3h of sunshine.

What is the most humid month in Washington?

February is the most humid month in Washington, with an average relative humidity of 85%.

What is the snowiest month in Washington?

The month with the most snowfall in Washington, Pennsylvania, is February, when snow falls for 8.1 days and typically aggregates up to 1.26" (32mm) of snow.

When is Daylight Saving Time (DST) in Washington?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, 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?

April, July and August, with an average relative humidity of 77%, are the least humid months in Washington, Pennsylvania.

When it does not snow in Washington?

June through September are months without snowfall.

When are the longest days in Washington?

With an average of 14h and 59min of daylight, June has the longest days of the year in Washington, Pennsylvania.

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

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the warmest month in Washington?

With an average high-temperature of 83.3°F (28.5°C) and an average low-temperature of 61.9°F (16.6°C), July is the warmest month.

What is the wettest month in Washington?

July is the month with the most rainfall in Washington. Rain falls for 15.8 days and accumulates 1.65" (42mm) of precipitation.

What month has the most sunshine in Washington?

August has the most sunshine of the year, with an average of 10.2h of sunshine.

What is the month with the shortest days in Washington?

The month with the shortest days in Washington, Pennsylvania, is December, with an average of 9h and 22min of daylight.

When is the lowest UV index in Washington?

With an average maximum UV index of 1, December is the month with the lowest UV index.

Average temperature
Washington, PA

Average temperature - Washington, PA

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.6°F).

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

[Resources]

Average pressure
Washington, PA

Average pressure - Washington, PA

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

[Resources]

Average wind speed
Washington, PA

Average wind speed - Washington, PA

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

[Resources]

Average humidity
Washington, PA

Average humidity - Washington, PA

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).

[Resources]

Average rainfall
Washington, PA

Average rainfall - Washington, PA

The wettest month (with the highest rainfall) is July (1.65").
The driest months (with the least rainfall) are January and November (0.94").

[Resources]

Average rainfall days
Washington, PA

Average rainfall days - Washington, PA

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is February (7.3 days).

[Resources]

Average snowfall
Washington, PA

Average snowfall - Washington, PA

The month with the highest snowfall is February (1.26").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days
Washington, PA

Average snowfall days - Washington, PA

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight / Average sunshine
Washington, PA

Average daylight / Average sunshine - Washington, PA

The month with the longest days is June (Average daylight: 14h and 59min).
The month with the shortest days is December (Average daylight: 9h and 22min).

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

[Resources]

Average sunshine days
Washington, PA

Average sunshine days - Washington, PA

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

[Resources]

Average visibility
Washington, PA

Average visibility - Washington, PA

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

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location