May weather forecastBuffalo, NY
May
Weather in May
The beauty of spring is in full swing in May as Buffalo moves further away from the winter chill. The icy snow completely fades away till autumn, making this month snow-free. Warmer temperatures allow the city to come alive with vibrant colors, and rainfall becomes more intense, nurturing the greenery. Abundant sunshine and extended daylight hours make outdoor activities more enjoyable for residents and tourists alike. The noticeable lightening of the weather reflects in the relaxed sea temperatures as well.Temperature
The transition from April to May brings a temperature rise, with average high-temperatures increasing from a fresh 52.3°F (11.3°C) to a refreshing 66°F (18.9°C). The temperature lowers to an average of 48.7°F (9.3°C) during May nights.Humidity
In Buffalo, the average relative humidity in May is 76%.Rainfall
The month with the most rainfall in Buffalo is May, when the rain falls for 17.8 days and typically aggregates up to 2.87" (73mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.4 snowfall days, in May, Buffalo aggregates 0.28" (7mm) of snow. Throughout the year, there are 77.2 snowfall days, and 30.94" (786mm) of snow is accumulated.Ocean temperature
In Buffalo, the average seawater temperature in May is 45.7°F (7.6°C).Note: With an efficient thermal swimsuit, one can navigate 45.7°F (7.6°C) even if it's colder than 50°F (10°C); otherwise, rapid cold shock and breathlessness might set in. Barely wading at 55.4°F (13°C) feels chilly.
Daylight
In May, the average length of the day is 14h and 40min.On the first day of the month, sunrise is at 6:08 am and sunset at 8:16 pm. On the last day of May, in Buffalo, sunrise is at 5:39 am and sunset at 8:47 pm EDT.
Sunshine
In Buffalo, the average sunshine in May is 8.8h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In May, the maximum UV index of 5 translates into these guidelines:
Act with care - The suggestion to avoid sunburn is emphasized. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Buffalo, NY
- Average high temperature in May: 66°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in May: 48.7°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in May
Buffalo, NY
- Average pressure in May: 29.98"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 May
Buffalo, NY
- Average wind speed in May: 7.7mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in May
Buffalo, NY
- Average humidity in May: 76%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are July, August and September (74%).
Average rainfall in May
Buffalo, NY
- Average rainfall in May: 2.87"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in May
Buffalo, NY
- Average rainfall days in May: 17.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (7.6 days).
Average snowfall in May
Buffalo, NY
- Average snowfall in May: 0.28"
The month with the highest snowfall is February (7.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Buffalo, NY
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are 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: 14h and 42min
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 and 48min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in May
Buffalo, NY
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is September (12.5 days).
The month with the least sunshine days is January (6.3 days).
Average UV index in May
Buffalo, NY
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in May
Buffalo, NY
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Buffalo, NY
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
