July weather forecastRock Mill, NJ
July
Weather in July
July, like June, in Rock Mill, New Jersey, is another warm summer month, with temperature in the range of an average high of 84.6°F (29.2°C) and an average low of 66.7°F (19.3°C).Temperature
July, with its average high-temperature of 84.6°F (29.2°C) and an average low-temperature of 66.7°F (19.3°C), holds the record as the warmest month.Heat index
The heat index in July is calculated to be a tropical 93.2°F (34°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.Remember that heat index calculations are made for conditions in the shade with light wind. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
In Rock Mill, New Jersey, the average relative humidity in July is 75%.Rainfall
The month with the most rainfall in Rock Mill is July, when the rain falls for 12.9 days and typically aggregates up to 1.18" (30mm) of precipitation.Snowfall
In Rock Mill, snow does not fall in June through October.Daylight
The average length of the day in July is 14h and 43min.On the first day of July in Rock Mill, sunrise is at 5:32 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:14 pm EDT.
Sunshine
With an average of 10.6h of sunshine, July has the most sunshine of the year.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Rock Mill. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 6 in July suggests the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Rock Mill, NJ
- Average high temperature in July: 84.6°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 July: 66.7°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 July
Rock Mill, NJ
- Average pressure in July: 29.96"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 July
Rock Mill, NJ
- Average wind speed in July: 5.4mph
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 July
Rock Mill, NJ
- Average humidity in July: 75%
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 July
Rock Mill, NJ
- Average rainfall in July: 1.18"
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 July
Rock Mill, NJ
- Average rainfall days in July: 12.9 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 July
Rock Mill, NJ
- Average snowfall in July: 0"
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 July
Rock Mill, NJ
- Average snowfall days in July: 0 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 July /
Average sunshine in July
Rock Mill, NJ
- Average daylight in July: 14h and 42min
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 July: 10h and 36min
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 July
Rock Mill, NJ
- Average sunshine days in July: 13.6 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 July
Rock Mill, NJ
- Average UV index in July: 6
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 July
Rock Mill, NJ
- Average cloud cover in July: 33
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 July
Rock Mill, NJ
- Average visibility in July: 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).





