May weather forecast and climate
Greater Rochester International Airport, NY

What is the temperature in May in Greater Rochester International Airport?

The average high-temperature, in May, in Greater Rochester International Airport, is 68°F (20°C), while the average low-temperature is 46.4°F (8°C).

How many days does it rain in May in Greater Rochester International Airport?

In Greater Rochester International Airport, in May, it is raining for 11 days, with typically 2.8" (70mm) of accumulated precipitation.

What is the sea water temperature in May in Greater Rochester International Airport?

In May, the average sea temperature is 42.8°F (6°C). Swimming in 42.8°F (6°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.
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

Months with the highest average low temperature are July and August (59°F).
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").
Driest months (with the lowest 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 lowest number of 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).
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: 14.7h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9.1h).

  • Average sunshine in May: 8h

Months with most sunshine are June and July (Average sunshine: 10h).
Months with least sunshine are January, November and December (Average sunshine: 3).

Average UV index in May - Greater Rochester International Airport, NY
  • Average UV index in May: 7

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January and December (UV index 1).

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