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Boston May Weather History
| May 1 |
Highest average one minute wind velocity, west 55 mph, 1935 |
| May 3 |
Latest date that 32 degrees occurred (freeze) 1874 and 1882.
Coldest temperature, 31F, 1882
Coldest high temperature 40F, 1973 |
| May 9-10 |
Most snow in 24 hours, 0.5 inches, 1977, heave snow over the interior |
| May 10-11 |
10 inches or more of snow fell over interior Massachusetts, 1945 |
| May 11 |
Lowest pressure 29.09 inches, 1945 |
| May 15-16 |
Greatest 24 hour rainfall total, 5.74 inches, 1954 |
| May 18 |
Latest in the spring that 70 degrees first occurred, 1995 |
| May 22 |
Highest pressure, 30.63 inches, 1936 |
| May 25 |
Destructive winds, peak gust 70 mph, 1967 |
| May 26 |
Hottest ever May temperature, 97F, 1880 |
| May 27 |
Warmest ever low temperature, 74F, 1914 |
| May 29 |
Devastating tornado strikes Great Barrington, MA, 1995 |
| May 31 |
Boston suburbs experience late freeze, 1961
94 mph wind gust at Worcester from microburst ties record, 1998 |
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