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 onset of April brings a temperature shift, with the average high-temperature moving from a frosty 45.9°F (7.7°C) in March to a moderate 57°F (13.9°C). Harrison observes an average low-temperature of 43.9°F (6.6°C) during April nights.Humidity
In April, the average relative humidity is 71%.Rainfall
In Harrison, in April, during 14.1 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, there are 150.3 rainfall days, and 27.72" (704mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Harrison, New Jersey. April is the last month it regularly snows. During 0.3 snowfall days, in April, Harrison aggregates 0.08" (2mm) of snow. Throughout the year, there are 18.1 snowfall days, and 8.46" (215mm) of snow is accumulated.Daylight
The average length of the day in April in Harrison is 13h and 20min.On the first day of April in Harrison, sunrise is at 6:38 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 7:52 pm EDT.
Sunshine
In April, the average sunshine is 8.4h.UV index
In Harrison, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 4 during April translates into the following guidance:
Prioritize safety - Suggestions to prevent sun damage are offered. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What is the usual temperature for Harrison in April?
What is the average humidity in April in Harrison?
How much does it rain in Harrison in April?
What is the last month it snows in Harrison?
What is the average length of the day in April in Harrison?
When are sunrise and sunset in April in Harrison?
How many hours of sunshine does Harrison have in April?
What is the UV index intensity in April in Harrison?
Average temperature in April
Harrison, NJ
- Average high temperature in April: 57°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in April: 43.9°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in April
Harrison, NJ
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Harrison, NJ
- Average wind speed in April: 9mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in April
Harrison, NJ
- Average humidity in April: 71%
The months with the highest relative humidity are February and December (75%).
The month with the lowest relative humidity is August (70%).
Average rainfall in April
Harrison, NJ
- Average rainfall in April: 2.2"
The wettest month (with the highest rainfall) is July (3.23").
The driest months (with the least rainfall) are January and February (1.69").
Average rainfall days in April
Harrison, NJ
- Average rainfall days in April: 14.1 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in April
Harrison, NJ
- Average snowfall in April: 0.08"
The month with the highest snowfall is March (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Harrison, NJ
- Average snowfall days in April: 0.3 days
The months with the highest number of snowfall days are January and February (5.3 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
Harrison, NJ
- 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: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in April
Harrison, NJ
- Average sunshine days in April: 14.7 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (12 days).
Average UV index in April
Harrison, NJ
- Average UV index in April: 4
The months with the highest UV index are 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
Harrison, NJ
- Average cloud cover in April: 44
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in April
Harrison, NJ
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Harrison, New Jersey, USA
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