April weather forecastHarmonsburg, PA
April
Weather in April
April is a fresh spring month in Harmonsburg, Pennsylvania, with an average temperature fluctuating between 37.8°F (3.2°C) and 54.3°F (12.4°C).Temperature
April's onset witnesses a shift in the average high-temperature, moving from an icy 42.4°F (5.8°C) in March to a cool 54.3°F (12.4°C). During April, an average low-temperature of 37.8°F (3.2°C) is observed.Humidity
The months with the lowest humidity in Harmonsburg are April through August, with an average relative humidity of 80%.Rainfall
In April, the rain falls for 16.8 days. Throughout April, 2.32" (59mm) of precipitation is accumulated. Throughout the year, there are 167.5 rainfall days, and 24.29" (617mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Harmonsburg, in April, snow falls for 4.3 days, with typically accumulated 1.18" (30mm) of snow. In Harmonsburg, during the entire year, snow falls for 79.8 days and aggregates up to 25.39" (645mm) of snow.Daylight
In April, the average length of the day is 13h and 22min.On the first day of April, sunrise is at 7:02 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 8:18 pm EDT.
Sunshine
The average sunshine in April is 7h.UV index
The average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 3 in April converts into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Harmonsburg, PA
- Average high temperature in April: 54.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in April: 37.8°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in April
Harmonsburg, PA
- Average pressure in April: 29.97"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Harmonsburg, PA
- Average wind speed in April: 8mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in April
Harmonsburg, PA
- Average humidity in April: 80%
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are April, May, June, July and August (80%).
Average rainfall in April
Harmonsburg, PA
- Average rainfall in April: 2.32"
The wettest month (with the highest rainfall) is June (2.72").
The driest month (with the least rainfall) is November (1.42").
Average rainfall days in April
Harmonsburg, PA
- Average rainfall days in April: 16.8 days
The month with the highest number of rainy days is October (17.5 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in April
Harmonsburg, PA
- Average snowfall in April: 1.18"
The month with the highest snowfall is January (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Harmonsburg, PA
- Average snowfall days in April: 4.3 days
The month with the highest number of snowfall days is January (20.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Harmonsburg, PA
- Average daylight in April: 13h and 24min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in April
Harmonsburg, PA
- Average sunshine days in April: 9.7 days
The month with the most sunshine days is July (12.5 days).
The month with the least sunshine days is February (6.7 days).
Average UV index in April
Harmonsburg, PA
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Harmonsburg, PA
- Average cloud cover in April: 52
The month with the most cloud cover is January (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in April
Harmonsburg, PA
- Average visibility in April: 6mi
The months with the highest visibility are April, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).





