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
In April, the meteorological conditions change with the average high-temperature moving from a chilly 44.4°F (6.9°C) in March to a mild 57°F (13.9°C). During April nights, Willow Brook records an average temperature of 39°F (3.9°C).Humidity
April is the least humid month, with an average relative humidity of 76%.Rainfall
In Willow Brook, during April, the rain falls for 13.3 days and regularly aggregates up to 1.06" (27mm) of precipitation. In Willow Brook, during the entire year, the rain falls for 131.1 days and collects up to 13.31" (338mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Willow Brook. In Willow Brook, in April, during 0.8 snowfall days, 0.12" (3mm) of snow is typically accumulated. Throughout the year, there are 25.8 snowfall days, and 6.89" (175mm) of snow is accumulated.Daylight
In Willow Brook, New Jersey, the average length of the day in April is 13h and 21min.On the first day of April, sunrise is at 6:39 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 7:54 pm EDT.
Sunshine
In Willow Brook, New Jersey, the average sunshine in April is 7.9h.UV index
The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The UV index of 3 in April translates into these instructions:
Put precautions into practice - Guidance to elude sunburn is provided. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
What is the temperature in April in Willow Brook?
What is the least humid month in Willow Brook?
What is the average humidity in April in Willow Brook?
How many days does it rain in April in Willow Brook?
How many days does it snow in April in Willow Brook?
What is the average length of the day in April in Willow Brook?
When are sunrise and sunset in April in Willow Brook?
How many hours of sunshine does Willow Brook have in April?
How high is the UV index in April in Willow Brook?
Average temperature in April
Willow Brook, 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 (33.3°F).
- Average low temperature in April: 39°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in April
Willow Brook, NJ
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Willow Brook, NJ
- Average wind speed in April: 7.1mph
The windiest months (with the highest average wind speed) are January and March (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in April
Willow Brook, NJ
- Average humidity in April: 76%
The months with the highest relative humidity are February, October and December (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in April
Willow Brook, NJ
- Average rainfall in April: 1.06"
The wettest month (with the highest rainfall) is July (1.77").
The driest month (with the least rainfall) is September (0.63").
Average rainfall days in April
Willow Brook, NJ
- Average rainfall days in April: 13.3 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in April
Willow Brook, NJ
- Average snowfall in April: 0.12"
The month with the highest snowfall is March (1.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Willow Brook, NJ
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Willow Brook, NJ
- 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 5min
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 24min).
Average sunshine days in April
Willow Brook, NJ
- Average sunshine days in April: 14.3 days
The months with the most sunshine days are January and November (20.4 days).
The month with the least sunshine days is June (12.5 days).
Average UV index in April
Willow Brook, NJ
- 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
Willow Brook, NJ
- Average cloud cover in April: 48
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in April
Willow Brook, NJ
- 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).
Willow Brook, New Jersey, USA
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