July weather forecastHillsdale, NJ
July
Weather in July
July, the same as June, is a moderately hot summer month in Hillsdale, New Jersey, with an average temperature ranging between min 66.6°F (19.2°C) and max 84.7°F (29.3°C).Temperature
Hillsdale's temperatures peak on average in July, reaching 84.7°F (29.3°C) at their highest and 66.6°F (19.2°C) at their lowest.Heat index
July's average heat index is appraised at a tropical 93.2°F (34°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
In July, the average relative humidity in Hillsdale is 71%.Rainfall
In Hillsdale, in July, during 16.8 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. In Hillsdale, New Jersey, during the entire year, the rain falls for 157.3 days and collects up to 32.72" (831mm) of precipitation.Snowfall
In Hillsdale, New Jersey, snow does not fall in May through September.Daylight
The average length of the day in July in Hillsdale is 14h and 47min.On the first day of the month, sunrise is at 5:28 am and sunset at 8:32 pm. On the last day of July, in Hillsdale, sunrise is at 5:51 am and sunset at 8:13 pm EDT.
Sunshine
With an average of 10.2h of sunshine, July has the most sunshine of the year in Hillsdale.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 6 in July transforms into this advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures 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
Hillsdale, NJ
- Average high temperature in July: 84.7°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 (35.2°F).
- Average low temperature in July: 66.6°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in July
Hillsdale, NJ
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in July
Hillsdale, NJ
- Average wind speed in July: 5.5mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in July
Hillsdale, NJ
- Average humidity in July: 71%
The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is August (70%).
Average rainfall in July
Hillsdale, NJ
- Average rainfall in July: 3.15"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in July
Hillsdale, NJ
- Average rainfall days in July: 16.8 days
The months with the highest number of rainy days are May and July (16.8 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in July
Hillsdale, NJ
- Average snowfall in July: 0"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Hillsdale, NJ
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Hillsdale, NJ
- Average daylight in July: 14h and 48min
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 July: 10h and 12min
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 30min).
Average sunshine days in July
Hillsdale, NJ
- Average sunshine days in July: 12.3 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in July
Hillsdale, NJ
- Average UV index in July: 6
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 July
Hillsdale, NJ
- Average cloud cover in July: 35
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in July
Hillsdale, 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).





