July weather forecastRochester, NY
July
Weather in July
As the heart of summer, July is the warmest month in Rochester with a high average temperature of 77.9°F (25.5°C). The city enjoys the most prolonged daylight hours and the maximum sea temperature. Coupled with the warm temperatures, the extended daylight provides the perfect setting for long, sun-drenched days. Most days of July are free of rainfall, offering clear skies for most summer activities. Despite the heat, the cool wind from Lake Ontario helps moderate the summer warmth.Temperature
With an average high-temperature of 77.9°F (25.5°C) and an average low-temperature of 63°F (17.2°C), July is the warmest month.Humidity
In Rochester, the average relative humidity in July is 77%.Rainfall
In Rochester, in July, it is raining for 18.5 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, there are 172.4 rainfall days, and 29.45" (748mm) of precipitation is accumulated.Snowfall
In Rochester, snow does not fall in June through September.Ocean temperature
In July, the average ocean temperature is 70.9°F (21.6°C).Note: Most people do not enjoy swimming in water of 70.9°F (21.6°C). Breathing control becomes harder as the temperature descends from 69.8°F (21°C) to 59°F (15°C).
Daylight
In July, the average length of the day is 15h and 0min.On the first day of July, sunrise is at 5:34 am and sunset at 8:53 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:32 pm EDT.
Sunshine
July has the most sunshine of the year, with an average of 10.6h of sunshine.UV index
July is the month with the highest UV index, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In July, the maximum UV index of 6 suggests these recommendations:
Shield from overexposure. Defense against sun-related harm is required. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Stay cautious! Sand and water reflections increase UV radiation potency.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Rochester, NY
- Average high temperature in July: 77.9°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in July: 63°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in July
Rochester, NY
- Average pressure in July: 29.95"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in July
Rochester, NY
- Average wind speed in July: 7mph
The windiest month (with the highest average wind speed) is January (11.6mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in July
Rochester, NY
- Average humidity in July: 77%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are August and September (76%).
Average rainfall in July
Rochester, NY
- Average rainfall in July: 2.72"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in July
Rochester, NY
- Average rainfall days in July: 18.5 days
The month with the highest number of rainy days is August (18.7 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in July
Rochester, NY
- Average snowfall in July: 0"
The month with the highest snowfall is February (7.01").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Rochester, NY
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (17.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in July
Rochester, NY
- Average sea temperature in July: 70.9°F
The best month for swimming (with the highest average sea temperature) is August (73°F).
The coldest month (with the lowest average sea temperature) is March (35.8°F).
Average daylight in July /
Average sunshine in July
Rochester, NY
- Average daylight in July: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in July: 10h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 2h and 42min).
Average sunshine days in July
Rochester, NY
- Average sunshine days in July: 10.4 days
The month with the most sunshine days is September (13.9 days).
The month with the least sunshine days is February (6.7 days).
Average UV index in July
Rochester, NY
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in July
Rochester, NY
- Average cloud cover in July: 29
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in July
Rochester, NY
- Average visibility in July: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
