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
As Princeton, New Jersey, transitions into April, a rise in the average high-temperature is observed, moving from a frosty 48.6°F (9.2°C) in March to a refreshing 60.4°F (15.8°C). Princeton experiences a mean temperature of 43.3°F (6.3°C) during April nights.Humidity
April is the least humid month in Princeton, with an average relative humidity of 73%.Rainfall
In April, the rain falls for 11.3 days. Throughout April, 0.83" (21mm) of precipitation is accumulated. Throughout the year, there are 119.3 rainfall days, and 12.72" (323mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. In April, it is snowing for 0.3 days. Throughout April, 0.12" (3mm) of snow is accumulated. In Princeton, during the entire year, snow falls for 16.4 days and aggregates up to 4.41" (112mm) of snow.Daylight
In Princeton, the average length of the day in April is 13h and 19min.On the first day of April, sunrise is at 6:41 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 7:53 pm EDT.
Sunshine
In April, the average sunshine in Princeton is 8.3h.UV index
In Princeton, New Jersey, 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 the ordinary person.Note: The daily high UV index of 4 in April translates into this advice:
Ensure safety - Sun damage prevention is strongly urged. It's recommended to limit sun exposure when its radiation is at its peak during midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What is the usual temperature for Princeton in April?
What is the least humid month in Princeton?
What is the average humidity in April in Princeton?
How many days does it rain in April in Princeton?
How much does it snow in Princeton in April?
How many hours of daylight does Princeton have in April?
When is the sunrise / sunset in April in Princeton?
How many hours of sunshine does Princeton have in April?
How high is the UV index in April in Princeton?
Average temperature in April
Princeton, NJ
- Average high temperature in April: 60.4°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in April: 43.3°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in April
Princeton, NJ
- Average pressure in April: 29.99"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
Princeton, NJ
- Average wind speed in April: 8.5mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in April
Princeton, NJ
- Average humidity in April: 73%
The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in April
Princeton, NJ
- Average rainfall in April: 0.83"
The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in April
Princeton, NJ
- Average rainfall days in April: 11.3 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in April
Princeton, NJ
- Average snowfall in April: 0.12"
The month with the highest snowfall is March (1.42").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in April
Princeton, NJ
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (4.6 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
Princeton, 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 24min).
- Average sunshine in April: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in April
Princeton, NJ
- Average sunshine days in April: 16.8 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in April
Princeton, 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
Princeton, NJ
- Average cloud cover in April: 44
The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in April
Princeton, 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).
Princeton, New Jersey, USA
Weather forecast for your location
2. Allow the app to use your location
