April weather forecast
Washington, PA

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Weather in April

April serenades Washington with the full arrival of spring. Despite the disappearance of the winter ice with only 0.12" (3mm) of snow recorded, some might find the rainfall of 1.57" (40mm) accompanying the increased humidity a bit overwhelming. Spring showers envelop the city, encouraging the blossoming of fresh flowers and the greening of grasses. It is time to enjoy longer days and more sunshine as the weather secures its warm foothold. Thus, April, with its mix of rain and sunlight, embodies nature's own watering system, initiating Washington's annual renewal.

Temperature

An escalation in the average high-temperature is seen with the onset of April, moving from a chilly 48.6°F (9.2°C) in March to a refreshing 61.3°F (16.3°C). During the month of April, an average temperature of 41.2°F (5.1°C) is noted during the nights in Washington.

Humidity

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

Rainfall

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

Snowfall

January through May, October through December are months with snowfall. In April, it is snowing for 1.3 days. Throughout April, 0.12" (3mm) of snow is accumulated. In Washington, Pennsylvania, during the entire year, snow falls for 33.5 days and aggregates up to 4.88" (124mm) of snow.

Daylight

The average length of the day in April is 13h and 18min.
On the first day of the month, sunrise is at 7:03 am and sunset at 7:45 pm. On the last day of April, sunrise is at 6:20 am and sunset at 8:15 pm EDT.

Sunshine

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

UV index

In Washington, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: An average UV index of 4 in April transforms into this advice:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Washington in April?

Washington in April has an average high-temperature of 61.3°F (16.3°C) and an average low-temperature of 41.2°F (5.1°C).

What are the least humid months?

The months with the lowest humidity are April, July and August, with an average relative humidity of 77%.

What is the average humidity in April?

In April, the average relative humidity is 77%.

How much does it rain in April?

In April, the rain falls for 13.7 days. Throughout April, 1.57" (40mm) of precipitation is accumulated.

How much does it snow in April?

In April, it is snowing for 1.3 days. Throughout April, 0.12" (3mm) of snow is accumulated.

How many hours of daylight does Washington have in April?

In Washington, the average day length in April is 13h and 18min.

When is the sunrise / sunset in April?

In April, on the first day of the month, sunrise is at 7:03 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:15 pm EDT.

How many hours of sunshine does Washington have in April?

The average sunshine duration in April is 7.8h.

What is the UV index intensity in April?

In Washington, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Washington, PA

Average temperature in April - Washington, PA
  • Average high temperature in April: 61.3°F

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).

  • Average low temperature in April: 41.2°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).

Average pressure in April
Washington, PA

Average pressure in April - Washington, PA
  • Average pressure in April: 29.97"Hg

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

Average wind speed in April
Washington, PA

Average wind speed in April - Washington, PA
  • Average wind speed in April: 7.3mph

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).

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%).

Average rainfall in April
Washington, PA

Average rainfall in April - Washington, PA
  • Average rainfall in April: 1.57"

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

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).

Average snowfall in April
Washington, PA

Average snowfall in April - Washington, PA
  • Average snowfall in April: 0.12"

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

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).

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

Average daylight in April / Average sunshine in April - Washington, PA
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in April: 7h and 5min

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).

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).

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).

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).

Average visibility in April
Washington, PA

Average visibility in April - Washington, PA
  • Average visibility in April: 6mi

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).

Washington, Pennsylvania, USA

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