April weather forecastTrenton, PA
April
Weather in April
April in Trenton, Pennsylvania, is a refreshing spring month, with temperature in the range of an average low of 39.6°F (4.2°C) and an average high of 56.8°F (13.8°C).Temperature
April witnesses an increase in the average high-temperature, moving from a chilly 44.2°F (6.8°C) in March to a refreshing 56.8°F (13.8°C). In Trenton, the average nighttime temperature during April is a cold 39.6°F (4.2°C).Humidity
April is the least humid month, with an average relative humidity of 77%.Rainfall
In Trenton, during April, the rain falls for 14.6 days and regularly aggregates up to 2.17" (55mm) of precipitation. In Trenton, during the entire year, the rain falls for 139.8 days and collects up to 24.69" (627mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Trenton, in April, snow falls for 1.9 days, with typically accumulated 0.35" (9mm) of snow. Throughout the year, there are 33.6 snowfall days, and 20.67" (525mm) of snow is accumulated.Daylight
In Trenton, the average length of the day in April is 13h and 20min.On the first day of April, sunrise is at 6:46 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:00 pm EDT.
Sunshine
In April, the average sunshine is 7.9h.UV index
In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 3 in April leads to these recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Trenton, PA
- Average high temperature in April: 56.8°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in April: 39.6°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in April
Trenton, 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).
Average wind speed in April
Trenton, PA
- Average wind speed in April: 8.2mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in April
Trenton, 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
Trenton, PA
- Average rainfall in April: 2.17"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in April
Trenton, PA
- Average rainfall days in April: 14.6 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in April
Trenton, PA
- Average snowfall in April: 0.35"
The month with the highest snowfall is March (4.96").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Trenton, PA
- Average snowfall days in April: 1.9 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Trenton, PA
- Average daylight in April: 13h and 18min
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 54min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 18min).
Average sunshine days in April
Trenton, PA
- Average sunshine days in April: 13.6 days
The months with the most sunshine days are January and November (19.6 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in April
Trenton, PA
- Average UV index in April: 3
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Trenton, PA
- Average cloud cover in April: 48
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in April
Trenton, PA
- Average visibility in April: 6mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).





