Buffalo Weather in May
In Buffalo, May brings pleasant daytime temperatures around 20°C (68°F), with nights cooling to 9°C (48°F). Expect quite a bit of rainfall this month.
Rainfall in Buffalo in May
Historically, the month has about 13 days of rain, averaging 78 mm (3.1 in) in total. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Buffalo in May
May in Buffalo is generally perfect, with days reaching 20°C (68°F) and nights settling around 9°C (48°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. At 9°C (48°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Buffalo in May
The days are predominantly sunny, with an estimated total of around 259 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.If you favor pleasant temperatures and minimal rainfall, May is one of the best months to visit Buffalo.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Buffalo's climate page.
Buffalo Temperature in May
Min Temperature
9°C (48°F)
Max Temperature
20°C (68°F)
Chance of Rain
43%
Precipitation
78 mm (3.1 in)
Rainy days
13 days
Humidity
67%
Sunshine
259 hours
Percentage Sunshine
57%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Buffalo typically rise from around 16°C (61°F) at the start of May to approximately 22°C (72°F) by the end. Nights are cool, with lows typically ranging from 6°C (43°F) to 13°C (55°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Buffalo in May
Browse day-by-day weather records for Buffalo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Buffalo historical weather extremes in May
Based on weather observations in Buffalo between 1976 and 2026, these are the recorded extremes during May.
- The hottest May day on record in Buffalo reached 33°C (91°F) (May 30, 2006).
- The coldest night in May in Buffalo was on May 1, 1978, with a minimum of -2°C (28°F).
Best Places in the United States of America in May
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Buffalo in May
For Buffalo in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Buffalo in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Buffalo's climate page.
Temperature Rainfall Sunshine Humidity
See the full Buffalo climate overview or explore weather in the United States of America.
