April weather forecastHopatcong, NJ
April
Weather in April
April in Hopatcong, New Jersey, is a mild spring month, with an average temperature ranging between min 40.1°F (4.5°C) and max 57.9°F (14.4°C).Temperature
With the onset of April, Hopatcong experiences a temperature shift, with the average high-temperature moving from a frosty 45.1°F (7.3°C) in March to a moderate 57.9°F (14.4°C). During April, an average low-temperature of 40.1°F (4.5°C) is observed.Humidity
The least humid month is April, with an average relative humidity of 76%.Rainfall
In April, the rain falls for 16.6 days. Throughout April, 2.83" (72mm) of precipitation is accumulated. In Hopatcong, during the entire year, the rain falls for 162.3 days and collects up to 31.54" (801mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Hopatcong, during April, snow falls for 1.5 days and regularly aggregates up to 0.35" (9mm) of snow. In Hopatcong, during the entire year, snow falls for 36.2 days and aggregates up to 19.61" (498mm) of snow.Daylight
In Hopatcong, the average length of the day in April is 13h and 20min.On the first day of April, sunrise is at 6:40 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 7:54 pm EDT.
Sunshine
The average sunshine in April is 7.9h.UV index
In Hopatcong, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 3 in April translates into these instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Hopatcong, NJ
- Average high temperature in April: 57.9°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 (33.4°F).
- Average low temperature in April: 40.1°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in April
Hopatcong, 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
Hopatcong, NJ
- Average wind speed in April: 7.7mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in April
Hopatcong, 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
Hopatcong, NJ
- Average rainfall in April: 2.83"
The wettest month (with the highest rainfall) is July (3.35").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in April
Hopatcong, NJ
- Average rainfall days in April: 16.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in April
Hopatcong, NJ
- Average snowfall in April: 0.35"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Hopatcong, NJ
- Average snowfall days in April: 1.5 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Hopatcong, 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: 7h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in April
Hopatcong, NJ
- Average sunshine days in April: 11.3 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in April
Hopatcong, NJ
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Hopatcong, NJ
- Average cloud cover in April: 48
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in April
Hopatcong, NJ
- Average visibility in April: 6mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).





