April weather forecastRock Mill, NJ
April
Weather in April
April in Rock Mill, New Jersey, is a moderate spring month, with an average temperature ranging between max 60.3°F (15.7°C) and min 43.2°F (6.2°C).Temperature
April sees a temperature increase, moving from a chilly 48°F (8.9°C) in March to a refreshing 60.3°F (15.7°C). Nightly temperatures drop to an average low of 43.2°F (6.2°C) in April.Humidity
With an average relative humidity of 74%, April is the least humid month in Rock Mill, New Jersey.Rainfall
In Rock Mill, in April, it is raining for 9.3 days, with typically 0.59" (15mm) of accumulated precipitation. Throughout the year, there are 107.3 rainfall days, and 8.82" (224mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. In Rock Mill, during April, snow falls for 0.4 days and regularly aggregates up to 0.08" (2mm) of snow. In Rock Mill, during the entire year, snow falls for 15.5 days and aggregates up to 2.76" (70mm) of snow.Daylight
In Rock Mill, the average length of the day in April is 13h and 19min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:23 pm. On the last day of April, in Rock Mill, New Jersey, sunrise is at 5:58 am and sunset at 7:53 pm EDT.
Sunshine
In April, the average sunshine in Rock Mill is 8.3h.UV index
In April, the average daily maximum UV index in Rock Mill, New Jersey, is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 4 in April translates into these instructions:
Be vigilant - Preventing sunburn is recommended. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Rock Mill, NJ
- Average high temperature in April: 60.3°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in April: 43.2°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in April
Rock Mill, 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
Rock Mill, NJ
- Average wind speed in April: 8.4mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in April
Rock Mill, NJ
- Average humidity in April: 74%
The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (74%).
Average rainfall in April
Rock Mill, NJ
- Average rainfall in April: 0.59"
The wettest month (with the highest rainfall) is July (1.18").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in April
Rock Mill, NJ
- Average rainfall days in April: 9.3 days
The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is November (5.5 days).
Average snowfall in April
Rock Mill, NJ
- Average snowfall in April: 0.08"
The month with the highest snowfall is March (0.75").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in April
Rock Mill, NJ
- Average snowfall days in April: 0.4 days
The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Rock Mill, NJ
- Average daylight in April: 13h and 18min
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 18min).
- Average sunshine in April: 8h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in April
Rock Mill, NJ
- Average sunshine days in April: 19 days
The month with the most sunshine days is November (22.7 days).
The month with the least sunshine days is July (13.6 days).
Average UV index in April
Rock Mill, NJ
- Average UV index in April: 4
The months with the highest UV index are May, 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
Rock Mill, NJ
- Average cloud cover in April: 44
The months with the most cloud cover are February and December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in April
Rock Mill, 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).
