Harrisburg
Pennsylvania, USA
Long-term weather forecast
Long-term weather forecast

April weather forecast and climate
Harrisburg, PA

A church, a mosque, and other buildings along State Street in Harrisburg, Pennsylvania
A church, a mosque, and other buildings along State Street in Harrisburg, Pennsylvania
April in Harrisburg, Pennsylvania, is an enjoyable spring month, with average temperature fluctuating between 41.9°F (5.5°C) and 62.4°F (16.9°C).

Temperature

In April, the average high-temperature increases, from a cool 50.4°F (10.2°C) in March, to an enjoyable 62.4°F (16.9°C). In April, in Harrisburg, the average low-temperature is 41.9°F (5.5°C).

Humidity

April is the least humid month in Harrisburg, with an average relative humidity of 59.2%.

Rainfall

In Harrisburg, Pennsylvania, during 10.8 rainfall days, 3.1" (78.7mm) of precipitation is typically accumulated. In Harrisburg, during the entire year, the rain falls for 122 days and collects up to 40.7" (1034.8mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Harrisburg. April is the last month it regularly snows. During 0.3 snowfall days, Harrisburg aggregates 0.4" (10.2mm) of snow. Throughout the year, in Harrisburg, there are 16.8 snowfall days, and 30.6" (777.2mm) of snow is accumulated.

Daylight

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

Sunshine

In Harrisburg, the average sunshine is 7.9h.

UV index

In Harrisburg, the average daily maximum UV index in April is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in April in Harrisburg?

In Harrisburg, Pennsylvania, in April, the average high-temperature is 62.4°F (16.9°C), and the average low-temperature is 41.9°F (5.5°C).

What is the least humid month in Harrisburg?

April is the least humid month, with an average relative humidity of 59.2%.

What is the average humidity in April in Harrisburg?

In April, the average relative humidity in Harrisburg, Pennsylvania, is 59.2%.

How much does it rain in Harrisburg in April?

In Harrisburg, in April, it is raining for 10.8 days, with typically 3.1" (78.7mm) of accumulated precipitation.

What is the last month it snows in Harrisburg?

April is the last month it regularly snows in Harrisburg. During 0.3 snowfall days, in April, Harrisburg aggregates 0.4" (10.2mm) of snow.

What is the average length of the day in April in Harrisburg?

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

How many hours of sunshine does Harrisburg have in April?

In Harrisburg, the average sunshine in April is 7.9h.

How high is the UV index in April in Harrisburg?

In Harrisburg, Pennsylvania, the average daily maximum UV index in April is 6. A UV Index value of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV rays.
Average temperature in April - Harrisburg, PA
  • Average high temperature in April: 62.4°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in April: 41.9°F

The month with the highest average low temperature is July (66.3°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

Average humidity in April - Harrisburg, PA
  • Average humidity in April: 59.2%

The month with the highest relative humidity is September (73.8%).
The month with the lowest relative humidity is April (59.2%).

Average rainfall in April - Harrisburg, PA
  • Average rainfall in April: 3.1"

The wettest month (with the highest rainfall) is July (4.6").
The driest month (with the lowest rainfall) is February (2.4").

Average rainfall days in April - Harrisburg, PA
  • Average rainfall days in April: 10.8 days

The month with the highest number of rainy days is May (12.2 days).
The month with the lowest number of rainy days is October (8.8 days).

Average snowfall in April - Harrisburg, PA
  • Average snowfall in April: 0.4"

The month with the highest snowfall is February (10.5").
Months with the lowest snowfall are May, June, July, August, September and October (0").

Average snowfall days in April - Harrisburg, PA
  • Average snowfall days in April: 0.3 days

The month with the highest number of snowfall days is January (5.2 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

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

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

  • Average sunshine in April: 7.9h

The month with most sunshine is July (Average sunshine: 10h).
The month with least sunshine is December (Average sunshine: 4.1h).

Average UV index in April - Harrisburg, PA
  • Average UV index in April: 6

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