April weather forecast
Washington, PA

Weather in April

April in Washington, Pennsylvania, is an enjoyable spring month, with temperature in the range of an average low of 41.2°F (5.1°C) and an average high of 61.3°F (16.3°C).

Temperature

In Washington, the average high-temperature increases, from a frosty 48.6°F (9.2°C) in March, to an enjoyable 61.3°F (16.3°C). The average low-temperature, in April, is 41.2°F (5.1°C).

Humidity

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

Rainfall

In Washington, during April, the rain falls for 13.7 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Washington, during the entire year, the rain falls for 143 days and collects up to 14.8" (376mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Washington, in April, snow falls for 1.3 days, with typically accumulated 0.12" (3mm) of snow. Throughout the year, in Washington, Pennsylvania, there are 33.5 snowfall days, and 4.88" (124mm) of snow is accumulated.

Daylight

The average length of the day in Washington is 13.3h.

Sunshine

The average sunshine in Washington, Pennsylvania, is 7.8h.

UV index

The average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the least humid month in Washington?

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

What is the average humidity in April in Washington?

In Washington, Pennsylvania, the average relative humidity in April is 77%.

How much does it rain in Washington in April?

In Washington, Pennsylvania, during April, the rain falls for 13.7 days and regularly aggregates up to 1.57" (40mm) of precipitation.

How many days does it snow in April in Washington?

In Washington, in April, during 1.3 snowfall days, 0.12" (3mm) of snow is typically accumulated.

How many hours of daylight does Washington have in April?

In Washington, the average length of the day in April is 13.3h.

How many hours of sunshine does Washington have in April?

In Washington, Pennsylvania, the average sunshine in April is 7.8h.

What is the UV index intensity in April in Washington?

In April, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to the UV radiation.

Average temperature in April
Washington, PA

Average temperature in April - Washington, PA
  • Average high temperature in April: 16.3°C

The warmest month (with the highest average high temperature) is July (28.5°C).
The month with the lowest average high temperature is January (0.9°C).

  • Average low temperature in April: 5.1°C

The month with the highest average low temperature is July (16.6°C).
The coldest month (with the lowest average low temperature) is January (-6.2°C).

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Average pressure in April
Washington, PA

Average pressure in April - Washington, PA
  • Average pressure in April: 1015mbar

The month with the highest atmospheric pressure is November (1020.5mbar).
The month with the lowest atmospheric pressure is June (1014.2mbar).

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Average wind speed in April
Washington, PA

Average wind speed in April - Washington, PA
  • Average wind speed in April: 11.7km/h

The windiest month (with the highest average wind speed) is January (12.5km/h).
The calmest month (with the lowest average wind speed) is August (7.3km/h).

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Average humidity in April
Washington, PA

Average humidity in April - Washington, PA
  • Average humidity in April: 77%

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

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Average rainfall in April
Washington, PA

Average rainfall in April - Washington, PA
  • Average rainfall in April: 40mm

The wettest month (with the highest rainfall) is July (42mm).
The driest months (with the least rainfall) are January and November (24mm).

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Average rainfall days in April
Washington, PA

Average rainfall days in April - Washington, PA
  • Average rainfall days in April: 13.7 days

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).

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Average snowfall in April
Washington, PA

Average snowfall in April - Washington, PA
  • Average snowfall in April: 3mm

The month with the highest snowfall is February (32mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in April
Washington, PA

Average snowfall days in April - Washington, PA
  • Average snowfall days in April: 1.3 days

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).

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Average daylight in April /
Average sunshine in April
Washington, PA

Average daylight in April / Average sunshine in April - Washington, PA
  • Average daylight in April: 13.3h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in April: 7.8h

The month with the most sunshine is August (Average sunshine: 10.2h).
The month with the least sunshine is January (Average sunshine: 3h).

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Average sunshine days in April
Washington, PA

Average sunshine days in April - Washington, PA
  • Average sunshine days in April: 14.4 days

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

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Average UV index in April
Washington, PA

Average UV index in April - Washington, PA
  • Average UV index in April: 4

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in April
Washington, PA

Average cloud cover in April - Washington, PA
  • Average cloud cover in April: 48

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in April
Washington, PA

Average visibility in April - Washington, PA
  • Average visibility in April: 9km

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

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