April weather forecastRockleigh, NJ
April
Weather in April
April is a refreshing spring month in Rockleigh, New Jersey, with an average temperature fluctuating between 58.3°F (14.6°C) and 43.2°F (6.2°C).Temperature
Rockleigh in April experiences an increase in the average high-temperature, moving from March's chilly 46.6°F (8.1°C) to a moderate 58.3°F (14.6°C). An average low-temperature of 43.2°F (6.2°C) is noted during the month of April.Humidity
In April, the average relative humidity is 70%.Rainfall
In Rockleigh, during April, the rain falls for 15.8 days and regularly aggregates up to 2.76" (70mm) of precipitation. In Rockleigh, New Jersey, during the entire year, the rain falls for 153.9 days and collects up to 30.75" (781mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 0.7 snowfall days, in April, Rockleigh aggregates 0.24" (6mm) of snow. In Rockleigh, during the entire year, snow falls for 25.5 days and aggregates up to 10.55" (268mm) of snow.Daylight
In Rockleigh, the average length of the day in April is 13h and 20min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:21 pm. On the last day of April, sunrise is at 5:53 am and sunset at 7:51 pm EDT.
Sunshine
The average sunshine in April is 8.1h.UV index
In April, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 4 in April translates into this advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Rockleigh, NJ
- Average high temperature in April: 58.3°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in April: 43.2°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in April
Rockleigh, 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
Rockleigh, NJ
- Average wind speed in April: 8.1mph
The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in April
Rockleigh, NJ
- Average humidity in April: 70%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (68%).
Average rainfall in April
Rockleigh, NJ
- Average rainfall in April: 2.76"
The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in April
Rockleigh, NJ
- Average rainfall days in April: 15.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in April
Rockleigh, NJ
- Average snowfall in April: 0.24"
The month with the highest snowfall is March (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Rockleigh, NJ
- Average snowfall days in April: 0.7 days
The month with the highest number of snowfall days is January (6.9 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
Rockleigh, NJ
- 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: 8h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in April
Rockleigh, NJ
- Average sunshine days in April: 12.7 days
The months with the most sunshine days are January and November (18.1 days).
The months with the least sunshine days are April and June (12.7 days).
Average UV index in April
Rockleigh, 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
Rockleigh, NJ
- Average cloud cover in April: 47
The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in April
Rockleigh, 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).
