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
April witnesses an increase in the average high-temperature, moving from a frosty 46°F (7.8°C) in March to a mild 58.5°F (14.7°C). Caldwell observes an average nighttime temperature of 42.3°F (5.7°C) during April.Humidity
April and August, with an average relative humidity of 73%, are the least humid months in Caldwell.Rainfall
In Caldwell, in April, during 15.4 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, in Caldwell, there are 158 rainfall days, and 27.4" (696mm) of precipitation is accumulated.Snowfall
Months with snowfall in Caldwell are January through May, November and December. In Caldwell, New Jersey, during April, snow falls for 0.7 days and regularly aggregates up to 0.16" (4mm) of snow. Throughout the year, there are 24.3 snowfall days, and 9.96" (253mm) of snow is accumulated.Daylight
In Caldwell, the average length of the day in April is 13h and 20min.On the first day of April, sunrise is at 6:39 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 7:52 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 of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 4 in April, converts into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April in Caldwell?
What is the least humid month in Caldwell?
What is the average humidity in April in Caldwell?
How much does it rain in Caldwell in April?
How much does it snow in Caldwell in April?
How many hours of daylight does Caldwell have in April?
What time are sunrise and sunset in April in Caldwell?
How many hours of sunshine does Caldwell have in April?
What is the UV index reading in April in Caldwell?
Average temperature in April
Caldwell, NJ
- Average high temperature in April: 58.5°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in April: 42.3°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in April
Caldwell, 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
Caldwell, NJ
- Average wind speed in April: 8.1mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in April
Caldwell, NJ
- Average humidity in April: 73%
The months with the highest relative humidity are February and December (79%).
The months with the lowest relative humidity are April and August (73%).
Average rainfall in April
Caldwell, NJ
- Average rainfall in April: 2.24"
The wettest month (with the highest rainfall) is July (3.15").
The driest month (with the least rainfall) is January (1.57").
Average rainfall days in April
Caldwell, NJ
- Average rainfall days in April: 15.4 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in April
Caldwell, NJ
- Average snowfall in April: 0.16"
The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in April
Caldwell, NJ
- Average snowfall days in April: 0.7 days
The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Caldwell, 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: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in April
Caldwell, NJ
- Average sunshine days in April: 12.7 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in April
Caldwell, 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
Caldwell, NJ
- Average cloud cover in April: 46
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in April
Caldwell, NJ
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Caldwell, New Jersey, USA
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