Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
In Heidelberg, the average high-temperature in April increases from a chilly 47.8°F (8.8°C) in March to a refreshing 60.6°F (15.9°C). Throughout the April nights, Heidelberg encounters a low-temperature of 41.4°F (5.2°C).Humidity
In April, the average relative humidity is 76%.Rainfall
In April, the rain falls for 12.8 days. Throughout April, 1.22" (31mm) of precipitation is accumulated. Throughout the year, there are 132.6 rainfall days, and 11.5" (292mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 1.3 snowfall days, in April, Heidelberg aggregates 0.12" (3mm) of snow. Throughout the year, there are 32.5 snowfall days, and 3.66" (93mm) of snow is accumulated.Daylight
The average length of the day in April in Heidelberg is 13h and 19min.On the first day of the month, sunrise is at 7:02 am and sunset at 7:45 pm. On the last day of April, sunrise is at 6:19 am and sunset at 8:15 pm EDT.
Sunshine
In April, the average sunshine is 7.7h.UV index
In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during April leads to these instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Enhance your sun protection with tightly woven, yet airy clothing. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the average humidity in April?
How much does it rain in April?
What is the last month it snows?
What is the average length of the day in April?
When are sunrise and sunset in April?
How long on average sun shines in April in Heidelberg?
What is the UV index intensity in April in Heidelberg?
Average temperature in April
Heidelberg, PA
- Average high temperature in April: 60.6°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in April: 41.4°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in April
Heidelberg, PA
- Average pressure in April: 29.97"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in April
Heidelberg, PA
- Average wind speed in April: 7.4mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in April
Heidelberg, PA
- Average humidity in April: 76%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (75%).
Average rainfall in April
Heidelberg, PA
- Average rainfall in April: 1.22"
The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is November (0.67").
Average rainfall days in April
Heidelberg, PA
- Average rainfall days in April: 12.8 days
The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in April
Heidelberg, PA
- Average snowfall in April: 0.12"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Heidelberg, PA
- Average snowfall days in April: 1.3 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Heidelberg, 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 18min).
- Average sunshine in April: 7h and 4min
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
Heidelberg, PA
- Average sunshine days in April: 15 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (12.2 days).
Average UV index in April
Heidelberg, 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
Heidelberg, 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
Heidelberg, PA
- Average visibility in April: 6mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).
Heidelberg, Pennsylvania, USA
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