Weather in May
Temperature
The beginning of May marks a shift in the average high-temperature, moving from April's moderate 55.4°F (13°C) to a pleasant 68°F (20°C). Greater Rochester International Airport reports a marked divergence from daytime peaks throughout May, with lows averaging at a chilly 46.4°F (8°C).Rainfall
In Greater Rochester International Airport, New York, in May, it is raining for 11 days, with typically 2.76" (70mm) of accumulated precipitation. In Greater Rochester International Airport, New York, during the entire year, the rain falls for 152 days and collects up to 31.89" (810mm) of precipitation.Ocean temperature
In Greater Rochester International Airport, New York, the average seawater temperature in May is 42.8°F (6°C).Note: Swimming in 42.8°F (6°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.
Daylight
In May, the average length of the day in Greater Rochester International Airport is 14h and 41min.On the first day of the month, sunrise is at 6:02 am and sunset at 8:12 pm. On the last day of May, sunrise is at 5:33 am and sunset at 8:43 pm EDT.
Sunshine
The average sunshine in May is 8h.UV index
The average daily maximum UV index in May is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 7 during May leads to these advisories:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Frequently asked questions
What are the temperatures in Greater Rochester International Airport in May?
How many days does it rain in May in Greater Rochester International Airport?
What is the ocean temperature in May in Greater Rochester International Airport?
What is the average length of the day in May in Greater Rochester International Airport?
What time are sunrise and sunset in May in Greater Rochester International Airport?
How long on average sun shines in May in Greater Rochester International Airport?
What is the UV index intensity in May in Greater Rochester International Airport?
Average temperature in May
Greater Rochester International Airport, NY
- Average high temperature in May: 68°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 May: 46°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 May
Greater Rochester International Airport, NY
- Average rainfall in May: 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 May
Greater Rochester International Airport, NY
- Average rainfall days in May: 11 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 May
Greater Rochester International Airport, NY
- Average sea temperature in May: 43°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 May /
Average sunshine in May
Greater Rochester International Airport, NY
- Average daylight in May: 14h and 4min
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 May: 8h
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 May
Greater Rochester International Airport, NY
- Average UV index in May: 7
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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