April weather forecast
Hummelstown, PA

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Weather in April

April in Hummelstown, Pennsylvania, is a moderate spring month, with an average temperature fluctuating between 59.5°F (15.3°C) and 41.5°F (5.3°C).

Temperature

As March gives way to April, the average high-temperature displays an increase, moving from a frosty 46.9°F (8.3°C) to a moderate 59.5°F (15.3°C). During the month of April, the temperature generally drops to a low average of 41.5°F (5.3°C).

Humidity

The months with the lowest humidity are March and April, with an average relative humidity of 76%.

Rainfall

In Hummelstown, Pennsylvania, during April, the rain falls for 17 days and regularly aggregates up to 2.87" (73mm) of precipitation. Throughout the year, in Hummelstown, Pennsylvania, there are 162.3 rainfall days, and 30.71" (780mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Hummelstown are January through April, October through December. April is the last month it regularly snows. During 0.4 snowfall days, in April, Hummelstown aggregates 0.12" (3mm) of snow. In Hummelstown, during the entire year, snow falls for 27.8 days and aggregates up to 13.23" (336mm) of snow.

Daylight

In April, the average length of the day is 13h and 18min.
On the first day of the month, sunrise is at 6:49 am and sunset at 7:31 pm. On the last day of April, sunrise is at 6:06 am and sunset at 8:01 pm EDT.

Sunshine

The average sunshine in April is 8.2h.

UV index

In April, the average daily maximum UV index in Hummelstown is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum daily UV index of 4 during April morphs into the following directions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

What is the average April temperature in Hummelstown?

The average high-temperature, in April, in Hummelstown, is 59.5°F (15.3°C), while the average low-temperature is 41.5°F (5.3°C).

What are the least humid months in Hummelstown?

March and April, with an average relative humidity of 76%, are the least humid months.

What is the average humidity in April in Hummelstown?

In Hummelstown, the average relative humidity in April is 76%.

How many days does it rain in April in Hummelstown?

In Hummelstown, Pennsylvania, in April, it is raining for 17 days, with typically 2.87" (73mm) of accumulated precipitation.

What is the last month it snows in Hummelstown?

April is the last month it regularly snows in Hummelstown. During 0.4 snowfall days, in April, Hummelstown aggregates 0.12" (3mm) of snow.

How many hours of daylight does Hummelstown have in April?

The average day length in April is 13h and 18min.

When is the sunrise / sunset in April in Hummelstown?

On the first day of April, sunrise is at 6:49 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:01 pm EDT.

How many hours of sunshine does Hummelstown have in April?

In April, the average sunshine duration is 8.2h.

What is the UV index reading in April in Hummelstown?

In April, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe 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
Hummelstown, PA

Average temperature in April - Hummelstown, PA
  • Average high temperature in April: 59.5°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in April: 41.5°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

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Average pressure in April
Hummelstown, PA

Average pressure in April - Hummelstown, PA
  • Average pressure in April: 29.99"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).

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Average wind speed in April
Hummelstown, PA

Average wind speed in April - Hummelstown, PA
  • Average wind speed in April: 8.5mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in April
Hummelstown, PA

Average humidity in April - Hummelstown, PA
  • Average humidity in April: 76%

The months with the highest relative humidity are February and May (81%).
The months with the lowest relative humidity are March and April (76%).

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Average rainfall in April
Hummelstown, PA

Average rainfall in April - Hummelstown, PA
  • Average rainfall in April: 2.87"

The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is September (2.05").

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Average rainfall days in April
Hummelstown, PA

Average rainfall days in April - Hummelstown, PA
  • Average rainfall days in April: 17 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (8.5 days).

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Average snowfall in April
Hummelstown, PA

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

The month with the highest snowfall is January (3.94").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in April
Hummelstown, PA

Average snowfall days in April - Hummelstown, PA
  • Average snowfall days in April: 0.4 days

The month with the highest number of snowfall days is January (9 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
Hummelstown, PA

Average daylight in April / Average sunshine in April - Hummelstown, 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: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in April
Hummelstown, PA

Average sunshine days in April - Hummelstown, PA
  • Average sunshine days in April: 11.6 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (10 days).

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Average UV index in April
Hummelstown, PA

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

The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in April
Hummelstown, PA

Average cloud cover in April - Hummelstown, PA
  • Average cloud cover in April: 45

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in April
Hummelstown, PA

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

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

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Hummelstown, Pennsylvania, USA

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