Weather Comparison
Side-by-side weather comparison for May
| Metric | Boston | New York | Better |
|---|---|---|---|
| Average HighHigher is warmer | 19°C (66°F) | 21°C (70°F)▲ | New York |
| Average LowHigher is milder | 10°C (50°F) | 11°C (52°F)▲ | New York |
| Rain DaysFewer is drier | 11 days | 11 days | Tie |
| PrecipitationLess is drier | 80 mm▲ | 87 mm | Boston |
| Sunshine HoursMore is sunnier | 10h/day | 10h/day | Tie |
| HumidityLower is more comfortable | 65% | 65% | Tie |
| UV IndexLower is safer | 9 | 9 | Tie |
| Wind SpeedCalmer is better | 20 km/h | 17 km/h▲ | New York |
Boston and New York are closely matched in May. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.
Boston sits in the comfortable travel range at 19°C. New York is also comfortable at 21°C.
For travelers who prioritize dry weather, both cities are equally dry in May.
Boston reaches an average high of 19°C (66°F) and drops to 10°C (50°F) at night during May. The daily temperature range is 9°C, meaning moderate variation throughout the day.
New York averages 21°C (70°F) for the high and 11°C (52°F) for the low, with a daily range of 10°C. The 2°C difference is noticeable but not dramatic.
Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in May.
Boston receives approximately 80 mm of rainfall across 11 rain days during May. You can expect rain roughly every other day.
New York sees 87 mm over 11 rain days. Both cities are equally rainy this month.
Both cities share similar humidity levels at 65%.
Highs of 19°C, lows of 10°C, 11 rain days
Highs of 21°C, lows of 11°C, 11 rain days
Pack for both: waterproof jacket, compact umbrella, waterproof shoes. These items are useful in either destination during May.
The table below shows average high temperatures and rain days for every month. May is highlighted for quick reference.
| Month | Boston | New York | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 2°C | 10d | 4°C | 9d |
| Feb | 3°C | 9d | 5°C | 9d |
| Mar | 7°C | 11d | 9°C | 10d |
| Apr | 14°C | 11d | 15°C | 11d |
| May | 19°C | 11d | 21°C | 11d |
| Jun | 25°C | 10d | 26°C | 11d |
| Jul | 28°C | 10d | 29°C | 12d |
| Aug | 27°C | 9d | 28°C | 11d |
| Sep | 23°C | 8d | 24°C | 9d |
| Oct | 16°C | 10d | 18°C | 9d |
| Nov | 10°C | 10d | 12°C | 8d |
| Dec | 5°C | 11d | 6°C | 10d |
Boston Weather in May
Full forecast, packing tips, and activities
New York Weather in May
Full forecast, packing tips, and activities