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 is the warmest month, with an average high-temperature of 81.5°F (27.5°C) and an average low-temperature of 69.4°F (20.8°C).Heat index
The average heat index in July is evaluated at a hot 87.8°F (31°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
In Jerseyville, the average relative humidity in July is 77%.Rainfall
July is the month with the most rainfall. Rain falls for 17.6 days and accumulates 3.58" (91mm) of precipitation.Snowfall
In Jerseyville, snow does not fall in May through September.Daylight
The average length of the day in July is 14h and 42min.On the first day of July, sunrise is at 5:31 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:12 pm EDT.
Sunshine
With an average of 10.8h of sunshine, July has the most sunshine of the year.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. 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: The daily high UV index of 6 in July translates into this advice:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months?
What are the temperatures in July?
What is the average humidity in July?
What is the wettest month?
How many days does it rain in July?
When it does not snow?
How many hours of daylight does Jerseyville have in July?
When are sunrise and sunset in July?
What month has the most sunshine?
How many hours of sunshine does Jerseyville have in July?
What is the month with the highest UV index?
What is the UV index intensity in July?
Average temperature in July
Jerseyville, NJ
- Average high temperature in July: 81.5°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in July: 69.4°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in July
Jerseyville, 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
Jerseyville, NJ
- Average wind speed in July: 7.1mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in July
Jerseyville, NJ
- Average humidity in July: 77%
The months with the highest relative humidity are May and June (79%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall in July
Jerseyville, NJ
- Average rainfall in July: 3.58"
The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in July
Jerseyville, NJ
- Average rainfall days in July: 17.6 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in July
Jerseyville, NJ
- Average snowfall in July: 0"
The month with the highest snowfall is March (1.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Jerseyville, NJ
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (5.3 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
Jerseyville, 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 24min).
- Average sunshine in July: 10h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in July
Jerseyville, NJ
- Average sunshine days in July: 11.3 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in July
Jerseyville, 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
Jerseyville, NJ
- Average cloud cover in July: 28
The months with the most cloud cover are February, March and December (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in July
Jerseyville, 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).
Jerseyville, New Jersey, USA
Weather forecast for your location
2. Allow the app to use your location