Weather in July
Temperature
July temperatures tend to peak at an average high of 80.6°F (27°C) and dip to a low of 59°F (15°C).Rainfall
In July, the rain falls for 9 days. Throughout July, 2.76" (70mm) of precipitation is accumulated. Throughout the year, there are 152 rainfall days, and 31.89" (810mm) of precipitation is accumulated.Ocean temperature
In Greater Rochester International Airport, the average seawater temperature in July is 66.2°F (19°C).Note: For most, swimming in 66.2°F (19°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).
Daylight
The average length of the day in July is 15h and 0min.On the first day of July in Greater Rochester International Airport, sunrise is at 5:35 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:33 pm EDT.
Sunshine
June and July, with an average of 10h of sunshine, are months with the most sunshine.UV index
June and July, with an average maximum UV index of 8, are months with the highest UV index. A UV Index estimate of 8 to 10 represents a very high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum UV index of 8 in July translates into the following recommendations:
Precautions are essential; the risk of damage to unprotected skin and eyes is too high. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
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Average temperature in July
Greater Rochester International Airport, NY
- Average high temperature in July: 81°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in July: 59°F
The months with the highest average low temperature are July and August (59°F).
The coldest months (with the lowest average low temperature) are January and February (16°F).
Average rainfall in July
Greater Rochester International Airport, NY
- Average rainfall in July: 2.8"
The wettest month (with the highest rainfall) is August (3.3").
The driest months (with the least rainfall) are January and February (2").
Average rainfall days in July
Greater Rochester International Airport, NY
- Average rainfall days in July: 9 days
The month with the highest number of rainy days is December (17 days).
The month with the least rainy days is July (9 days).
Average sea temperature in July
Greater Rochester International Airport, NY
- Average sea temperature in July: 66°F
The best month for swimming (with the highest average sea temperature) is August (70°F).
The coldest months (with the lowest average sea temperature) are February and March (36°F).
Average daylight in July /
Average sunshine in July
Greater Rochester International Airport, 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
The months with the most sunshine are June and July (Average sunshine: 10h).
The months with the least sunshine are January, November and December (Average sunshine: 3h).
Average UV index in July
Greater Rochester International Airport, NY
- Average UV index in July: 8
The months with the highest UV index are June and July (UV index 8).
The months with the lowest UV index are January and December (UV index 1).
Greater Rochester International Airport, New York, USA
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