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
The shift into April brings an increase in the average high-temperature, moving from a chilly 44.4°F (6.9°C) in March to a refreshing 57°F (13.9°C). In Mercer, the nighttime temperature averages to an icy 38.1°F (3.4°C) during April.Humidity
The months with the lowest humidity in Mercer are April, May and July, with an average relative humidity of 79%.Rainfall
The months with the most rainfall in Mercer are April and June, with an average 3.74" (95mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Mercer, Pennsylvania, in April, during 4.2 snowfall days, 1.26" (32mm) of snow is typically accumulated. In Mercer, during the entire year, snow falls for 76.2 days and aggregates up to 32.36" (822mm) of snow.Daylight
In April, the average length of the day in Mercer is 13h and 21min.On the first day of the month, sunrise is at 7:02 am and sunset at 7:46 pm. On the last day of April, in Mercer, sunrise is at 6:18 am and sunset at 8:17 pm EDT.
Sunshine
In April, the average sunshine in Mercer, Pennsylvania, is 7h.UV index
The average daily maximum UV index in April in Mercer is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 3 in April translates into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. To protect against the Sun's most potent rays, avoid direct exposure around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
What is the average April temperature in Mercer?
What are the least humid months in Mercer?
What is the average humidity in April in Mercer?
What is the wettest month in Mercer?
How much does it rain in Mercer in April?
How much does it snow in Mercer in April?
How many hours of daylight does Mercer have in April?
When are sunrise and sunset in April in Mercer?
How long on average sun shines in April in Mercer?
How high is the UV index in April in Mercer?
Average temperature in April
Mercer, PA
- Average high temperature in April: 57°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in April: 38.1°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in April
Mercer, PA
- Average pressure in April: 29.97"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
Mercer, PA
- Average wind speed in April: 7.6mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in April
Mercer, PA
- Average humidity in April: 79%
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are April, May and July (79%).
Average rainfall in April
Mercer, PA
- Average rainfall in April: 3.74"
The wettest months (with the highest rainfall) are April and June (3.74").
The driest month (with the least rainfall) is November (2.2").
Average rainfall days in April
Mercer, PA
- Average rainfall days in April: 17.8 days
The month with the highest number of rainy days is May (20.9 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in April
Mercer, PA
- Average snowfall in April: 1.26"
The month with the highest snowfall is January (8.27").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Mercer, PA
- Average snowfall days in April: 4.2 days
The month with the highest number of snowfall days is January (19.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Mercer, PA
- Average daylight in April: 13h and 2min
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 0min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in April
Mercer, PA
- Average sunshine days in April: 9 days
The month with the most sunshine days is September (14 days).
The month with the least sunshine days is February (6.2 days).
Average UV index in April
Mercer, PA
- Average UV index in April: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Mercer, PA
- Average cloud cover in April: 53
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in April
Mercer, PA
- Average visibility in April: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).
Mercer, Pennsylvania, USA
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