Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
July, having an average high-temperature of 83.5°F (28.6°C) and an average low-temperature of 68.2°F (20.1°C), is the warmest month.Heat index
July's mean heat index is calculated to be a tropical 89.6°F (32°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.Heat index determinations are made taking into account the shade and light air movements. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Humidity
The average relative humidity in July in Roselle is 73%.Rainfall
July is the month with the most rainfall in Roselle, New Jersey. Rain falls for 13.9 days and accumulates 1.22" (31mm) of precipitation.Snowfall
In Roselle, snow does not fall in May through October.Daylight
In Roselle, the average length of the day in July is 14h and 44min.On the first day of the month, sunrise is at 5:30 am and sunset at 8:31 pm. On the last day of July, in Roselle, sunrise is at 5:53 am and sunset at 8:13 pm EDT.
Sunshine
July has the most sunshine of the year, with an average of 10.6h of sunshine.UV index
The months with the highest UV index in Roselle are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 6 in July transforms into the following instructions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year in Roselle?
How hot is July in Roselle?
What is the average humidity in July in Roselle?
What is the wettest month in Roselle?
How many days does it rain in July in Roselle?
When it does not snow in Roselle?
How many hours of daylight does Roselle have in July?
When are sunrise and sunset in July in Roselle?
What month has the most sunshine in Roselle?
How many hours of sunshine does Roselle have in July?
What is the month with the highest UV index in Roselle?
How high is the UV index in July in Roselle?
Average temperature in July
Roselle, NJ
- Average high temperature in July: 83.5°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in July: 68.2°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in July
Roselle, 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
Roselle, NJ
- Average wind speed in July: 6mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in July
Roselle, NJ
- Average humidity in July: 73%
The months with the highest relative humidity are February and December (77%).
The months with the lowest relative humidity are April and August (72%).
Average rainfall in July
Roselle, NJ
- Average rainfall in July: 1.22"
The wettest month (with the highest rainfall) is July (1.22").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in July
Roselle, NJ
- Average rainfall days in July: 13.9 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in July
Roselle, NJ
- Average snowfall in July: 0"
The month with the highest snowfall is March (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Roselle, NJ
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (5.1 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
Roselle, NJ
- Average daylight in July: 14h and 4min
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 4min
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
Roselle, NJ
- Average sunshine days in July: 13.6 days
The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is June (13.5 days).
Average UV index in July
Roselle, 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
Roselle, NJ
- Average cloud cover in July: 31
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in July
Roselle, 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).
Roselle, New Jersey, USA
Weather forecast for your location
2. Allow the app to use your location