Buffalo
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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 excellent, 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.

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%

Buffalo Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Buffalo - and find the best time to visit.

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 records 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

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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.

  • Cycling
    9/10
  • Walking
    9/10
  • Camping
    4/10
  • Outdoor sports
    9/10

Buffalo 3-Day Forecast

Popular in May

Where to go in May - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.