July weather forecastDemarest, NJ
July
Weather in July
July, like June, in Demarest, New Jersey, is another warm summer month, with an average temperature fluctuating between 84.9°F (29.4°C) and 68°F (20°C).Temperature
July is the warmest month, exhibiting average temperatures of 84.9°F (29.4°C) at the peak and 68°F (20°C) at the base.Heat index
For most parts of July, the heat index is computed to be a tropical 93.2°F (34°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humidity
In July, the average relative humidity is 70%.Rainfall
In Demarest, in July, it is raining for 16.1 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, there are 153.9 rainfall days, and 30.75" (781mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in July is 14h and 46min.On the first day of the month, sunrise is at 5:28 am and sunset at 8:31 pm. On the last day of July, sunrise is at 5:51 am and sunset at 8:12 pm EDT.
Sunshine
July has the most sunshine of the year, with an average of 10.3h of sunshine.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 6 in July leads to these recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Demarest, NJ
- Average high temperature in July: 84.9°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in July: 68°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in July
Demarest, 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
Demarest, NJ
- Average wind speed in July: 5.8mph
The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in July
Demarest, NJ
- Average humidity in July: 70%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (68%).
Average rainfall in July
Demarest, NJ
- Average rainfall in July: 2.68"
The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in July
Demarest, NJ
- Average rainfall days in July: 16.1 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in July
Demarest, NJ
- Average snowfall in July: 0"
The month with the highest snowfall is March (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Demarest, NJ
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Demarest, 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 18min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in July
Demarest, NJ
- Average sunshine days in July: 13.1 days
The months with the most sunshine days are January and November (18.1 days).
The months with the least sunshine days are April and June (12.7 days).
Average UV index in July
Demarest, 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
Demarest, NJ
- Average cloud cover in July: 34
The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in July
Demarest, NJ
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
