Buffalo
New York, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Buffalo, NY

A view of the Niagara square with the McKinley Monument in Buffalo, New York
A view of the Niagara square with the McKinley Monument in Buffalo, New York
The last month of the spring, May, is a comfortable month in Buffalo, New York, with average temperature varying between 66.6°F (19.2°C) and 47.5°F (8.6°C).

Temperature

In Buffalo, the average high-temperature in May rises, from a fresh 55°F (12.8°C) in April, to a comfortable 66.6°F (19.2°C). In Buffalo, the average low-temperature is 47.5°F (8.6°C).

Humidity

The least humid month in Buffalo is May, with an average relative humidity of 67.2%.

Rainfall

In Buffalo, during May, the rain falls for 12.7 days and regularly aggregates up to 3.5" (87.9mm) of precipitation. Throughout the year, there are 166.5 rainfall days, and 40.5" (1028.3mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December.

Ocean temperature

In Buffalo, the average water temperature is 45.7°F (7.6°C). Swimming in 45.7°F (7.6°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 Buffalo is 14.7h.

Sunshine

In May, the average sunshine is 8.3h.

UV index

In May, the average daily maximum UV index in Buffalo, New York, is 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
The daily maximum UV index of 7 interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in May in Buffalo?

The average high-temperature, in May, in Buffalo, New York, is 66.6°F (19.2°C), while the average low-temperature is 47.5°F (8.6°C).

What is the least humid month in Buffalo?

May is the least humid month, with an average relative humidity of 67.2%.

What is the average humidity in May in Buffalo?

In Buffalo, New York, the average relative humidity in May is 67.2%.

How much does it rain in Buffalo in May?

In May, in Buffalo, the rain falls for 12.7 days. Throughout May, 3.5" (87.9mm) of precipitation is accumulated.

What is the last month it snows in Buffalo?

May is the last month it regularly snows in Buffalo, New York. Throughout May, Buffalo aggregates 0.3" (7.6mm) of snow.

What is the water temperature in May in Buffalo?

In May, the average ocean temperature in Buffalo is 45.7°F (7.6°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

How many hours of daylight does Buffalo have in May?

In Buffalo, the average length of the day in May is 14.7h.

How many hours of sunshine does Buffalo have in May?

In May, the average sunshine in Buffalo is 8.3h.

What is the UV index reading in May in Buffalo?

The average daily maximum UV index in May in Buffalo is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV rays.
Average temperature in May - Buffalo, NY
  • Average high temperature in May: 66.5°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (31.2°F).

  • Average low temperature in May: 47.4°F

The month with the highest average low temperature is July (62.3°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average humidity in May - Buffalo, NY
  • Average humidity in May: 67.2%

The month with the highest relative humidity is December (77.6%).
The month with the lowest relative humidity is May (67.2%).

Average rainfall in May - Buffalo, NY
  • Average rainfall in May: 3.5"

The wettest month (with the highest rainfall) is November (4").
The driest month (with the lowest rainfall) is February (2.5").

Average rainfall days in May - Buffalo, NY
  • Average rainfall days in May: 12.7 days

The month with the highest number of rainy days is January (19.2 days).
The month with the lowest number of rainy days is August (10.1 days).

Average snowfall in May - Buffalo, NY
  • Average snowfall in May: 0.3"

The month with the highest snowfall is December (27.4").
Months with the lowest snowfall are June, July, August and September (0").

Average snowfall days in May - Buffalo, NY
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (16.3 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average sea temperature in May - Buffalo, NY
  • Average sea temperature in May: 45.8°F

The best month for swimming (with the highest average sea temperature) is August (74.2°F).
The coldest month (with the lowest average sea temperature) is February (34.9°F).

Average daylight in May / Average sunshine in May - Buffalo, 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: 8.3h

The month with most sunshine is July (Average sunshine: 9.9h).
The month with least sunshine is December (Average sunshine: 2.2h).

Average UV index in May - Buffalo, NY
  • Average UV index in May: 7

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