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
As March transitions into April, a change in temperatures is observed, with average highs moving from a chilly 47.8°F (8.8°C) to a mild 60.3°F (15.7°C). During April, an average low-temperature of 42.3°F (5.7°C) is observed in Porters Mill.Humidity
The months with the lowest humidity are April and July, with an average relative humidity of 75%.Rainfall
In Porters Mill, in April, during 14.4 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Porters Mill, during the entire year, the rain falls for 146.5 days and collects up to 27.87" (708mm) of precipitation.Snowfall
Months with snowfall in Porters Mill are January through April, November and December. April is the last month it regularly snows. During 0.3 snowfall days, in April, Porters Mill aggregates 0.2" (5mm) of snow. In Porters Mill, during the entire year, snow falls for 19.1 days and aggregates up to 11.54" (293mm) of snow.Daylight
In Porters Mill, Pennsylvania, the average length of the day in April is 13h and 18min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:27 pm. On the last day of April, in Porters Mill, sunrise is at 6:02 am and sunset at 7:57 pm EDT.
Sunshine
The average sunshine in April is 8.2h.UV index
In April, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In April, a daily maximum UV index of 4 leads to the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April in Porters Mill?
What is the least humid month in Porters Mill?
What is the average humidity in April in Porters Mill?
How many days does it rain in April in Porters Mill?
What is the last month it snows in Porters Mill?
How many hours of daylight does Porters Mill have in April?
When is the sunrise / sunset in April in Porters Mill?
How many hours of sunshine does Porters Mill have in April?
What is the UV index intensity in April in Porters Mill?
Average temperature in April
Porters Mill, PA
- Average high temperature in April: 60.3°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in April: 42.3°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in April
Porters Mill, PA
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Porters Mill, PA
- Average wind speed in April: 8mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in April
Porters Mill, PA
- Average humidity in April: 75%
The months with the highest relative humidity are February and October (80%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in April
Porters Mill, PA
- Average rainfall in April: 2.28"
The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in April
Porters Mill, PA
- Average rainfall days in April: 14.4 days
The months with the highest number of rainy days are May and July (17 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in April
Porters Mill, PA
- Average snowfall in April: 0.2"
The month with the highest snowfall is March (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Porters Mill, PA
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Porters Mill, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in April
Porters Mill, PA
- Average sunshine days in April: 14 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in April
Porters Mill, PA
- Average UV index in April: 4
The months with the highest UV index are May, June, July and August (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
Porters Mill, PA
- Average cloud cover in April: 45
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in April
Porters Mill, PA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Porters Mill, Pennsylvania, USA
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