April weather forecast
Grassmere Park, PA

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Weather in April

April is a refreshing spring month in Grassmere Park, Pennsylvania, with an average temperature varying between 38.3°F (3.5°C) and 56.5°F (13.6°C).

Temperature

The rise of average high-temperatures is seen in April, with an increase from a frosty 44.4°F (6.9°C) in March to a moderate 56.5°F (13.6°C). In April, the nighttime temperature lowers to an average of 38.3°F (3.5°C).

Humidity

With an average relative humidity of 77%, April is the least humid month.

Rainfall

The wettest months are April and May, with an average 2.99" (76mm) of rainfall.

Snowfall

January through May, October through December are months with snowfall in Grassmere Park, Pennsylvania. In Grassmere Park, during April, snow falls for 1.8 days and regularly aggregates up to 0.35" (9mm) of snow. In Grassmere Park, Pennsylvania, during the entire year, snow falls for 47.6 days and aggregates up to 22.91" (582mm) of snow.

Daylight

In Grassmere Park, the average length of the day in April is 13h and 21min.
On the first day of April, sunrise is at 6:47 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:02 pm EDT.

Sunshine

The average sunshine in April is 7.6h.

UV index

In Grassmere Park, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 3 in April interprets into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. It's recommended to limit sun exposure when its radiation is at its peak during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Grassmere Park in April?

During April, Grassmere Park experiences an average high-temperature of 56.5°F (13.6°C) and a low-temperature of 38.3°F (3.5°C).

What is the least humid month?

With an average relative humidity of 77%, April is the least humid month.

What is the average humidity in April in Grassmere Park?

In April, the average relative humidity is 77%.

What is the wettest month?

The months with the most rainfall are April and May, with an average 2.99" (76mm) of precipitation.

How much does it rain in April?

In Grassmere Park, during April, the rain falls for 17.1 days and regularly aggregates up to 2.99" (76mm) of precipitation.

How many days does it snow in April?

In April, it is snowing for 1.8 days. Throughout April, 0.35" (9mm) of snow is accumulated.

What is the average length of the day in April?

In April, the average day length is 13h and 21min.

When is the sunrise / sunset in April?

In April, on the first day of the month, sunrise is at 6:47 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:02 pm EDT.

How long on average sun shines in April?

In April, the average sunshine duration is 7.6h.

What is the UV index intensity in April?

The average daily maximum UV index in April in Grassmere Park is 3. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
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
Grassmere Park, PA

Average temperature in April - Grassmere Park, PA
  • Average high temperature in April: 56.5°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in April: 38.3°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in April
Grassmere Park, PA

Average pressure in April - Grassmere Park, PA
  • Average pressure in April: 29.98"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in April
Grassmere Park, PA

Average wind speed in April - Grassmere Park, PA
  • Average wind speed in April: 8.1mph

The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in April
Grassmere Park, PA

Average humidity in April - Grassmere Park, PA
  • Average humidity in April: 77%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).

Average rainfall in April
Grassmere Park, PA

Average rainfall in April - Grassmere Park, PA
  • Average rainfall in April: 2.99"

The wettest months (with the highest rainfall) are April and May (2.99").
The driest month (with the least rainfall) is September (2.05").

Average rainfall days in April
Grassmere Park, PA

Average rainfall days in April - Grassmere Park, PA
  • Average rainfall days in April: 17.1 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in April
Grassmere Park, PA

Average snowfall in April - Grassmere Park, PA
  • Average snowfall in April: 0.35"

The month with the highest snowfall is January (5.94").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in April
Grassmere Park, PA

Average snowfall days in April - Grassmere Park, PA
  • Average snowfall days in April: 1.8 days

The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Grassmere Park, PA

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in April: 7h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

Average sunshine days in April
Grassmere Park, PA

Average sunshine days in April - Grassmere Park, PA
  • Average sunshine days in April: 11.1 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is February (9.8 days).

Average UV index in April
Grassmere Park, PA

Average UV index in April - Grassmere Park, PA
  • Average UV index in April: 3

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in April
Grassmere Park, PA

Average cloud cover in April - Grassmere Park, PA
  • Average cloud cover in April: 50

The months with the most cloud cover are February and December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 35).

Average visibility in April
Grassmere Park, PA

Average visibility in April - Grassmere Park, PA
  • Average visibility in April: 6mi

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

Grassmere Park, Pennsylvania, USA

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