Records for Boston Area, Massachusetts (BOSthr) on 05-20
Record Highs
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1: 91°F (1996)
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2: 90°F (1975)
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3: 90°F (1933)
Record Lows
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1: 40°F (1892)
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2: 41°F (1881)
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3: 42°F (2002)
Lowest Highs
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1: 66°F (2019)
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2: 65°F (1959)
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3: 63°F (1982)
Highest Lows
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1: 44°F (1892)
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2: 46°F (1901)
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3: 47°F (1948)
Highest May temperature:
97°F on 05-26-1880.
Lowest May temperature:
31°F on 05-03-1882.
Average temperature is 59.5°F
Average high is 67.6°F
Average low is 51.4°F
Temperature data from 1872 to 2022.
Record Precipitation
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1: 1.23" (1969)
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2: 1.11" (1928)
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3: 0.87" (1884)
Precipitation data from 1872 to 2022.