July weather forecastChapel Hill, NC

July
Weather in July
July stands as the warmest month in Chapel Hill, with temperatures occasionally reaching a sweltering 90.3°F (32.4°C). The city's residents adapt to this peak summer heat coupled with high humidity levels by partaking in various cooling activities. The longer daylight durations, reaching an average of 14.3 hours, provide ample opportunity for outdoor plans. Despite the hot temps, summer rain showers punctuate the month, often providing a much-needed respite from the heat. Amidst all, July remains vibrant and active with its characteristic summer energy.Temperature
The month of July sees the highest average temperatures in Chapel Hill, North Carolina, reaching 90.3°F (32.4°C) at the peak and 69.4°F (20.8°C) at the low.Heat index
July's mean heat index is computed to be a scorching 107.6°F (42°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.When assessing, remember that heat index measurements are for light winds and shaded spots. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. 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 meaningful for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.
Humidity
July is the least humid month, with an average relative humidity of 71%.Rainfall
In Chapel Hill, North Carolina, during July, the rain falls for 15.1 days and regularly aggregates up to 1.54" (39mm) of precipitation. In Chapel Hill, North Carolina, during the entire year, the rain falls for 130 days and collects up to 14.21" (361mm) of precipitation.Snowfall
In Chapel Hill, snow does not fall in April through October.Daylight
In July, the average length of the day in Chapel Hill is 14h and 19min.On the first day of July in Chapel Hill, sunrise is at 6:03 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 8:21 pm EDT.
Sunshine
The month with the most sunshine is July, with an average of 10.7h of sunshine.UV index
With an average maximum UV index of 7, July is the month with the highest UV index in Chapel Hill. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: The UV index of 7 during July translates into the following guidance:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Chapel Hill, NC
- Average high temperature in July: 90.3°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (47.7°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 (32°F).
Average pressure in July
Chapel Hill, NC
- Average pressure in July: 29.99"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in July
Chapel Hill, NC
- Average wind speed in July: 4.9mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in July
Chapel Hill, NC
- Average humidity in July: 71%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall in July
Chapel Hill, NC
- Average rainfall in July: 1.54"
The wettest month (with the highest rainfall) is May (1.77").
The driest month (with the least rainfall) is October (0.83").
Average rainfall days in July
Chapel Hill, NC
- Average rainfall days in July: 15.1 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is November (6.4 days).
Average snowfall in July
Chapel Hill, NC
- Average snowfall in July: 0"
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in July
Chapel Hill, NC
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Chapel Hill, NC
- Average daylight in July: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in July: 10h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in July
Chapel Hill, NC
- Average sunshine days in July: 12.8 days
The month with the most sunshine days is October (22.3 days).
The months with the least sunshine days are July and August (12.8 days).
Average UV index in July
Chapel Hill, NC
- Average UV index in July: 7
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in July
Chapel Hill, NC
- Average cloud cover in July: 32
The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in July
Chapel Hill, NC
- 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).





