{"title":"Boston: Days at or above 100 F, days by year","description":"Days by year for Days at or above 100 F in Boston.","dataAsOf":"2026-10-17T00:00:00Z","lastRevised":"2026-10-18","source":"Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products.","licence":"US Government open data (NOAA NCEI)","page":"https://worldextremeweathermonitor.com/cities/boston/days-above-100f/","columns":[{"name":"threshold","description":"Threshold id, for example tmax_ge_40c."},{"name":"year","description":"Calendar year."},{"name":"days","description":"Days in the year at or beyond the threshold."},{"name":"first","description":"First qualifying date of the year."},{"name":"last","description":"Last qualifying date of the year."},{"name":"longest_streak","description":"Longest run of consecutive qualifying days inside the year."}],"rows":[{"threshold":"tmax_ge_100f","year":1944,"days":2,"first":"1944-08-12","last":"1944-08-13","longest_streak":2},{"threshold":"tmax_ge_100f","year":1948,"days":1,"first":"1948-08-27","last":"1948-08-27","longest_streak":1},{"threshold":"tmax_ge_100f","year":1949,"days":2,"first":"1949-07-04","last":"1949-08-10","longest_streak":1},{"threshold":"tmax_ge_100f","year":1952,"days":2,"first":"1952-06-26","last":"1952-07-23","longest_streak":1},{"threshold":"tmax_ge_100f","year":1953,"days":1,"first":"1953-09-02","last":"1953-09-02","longest_streak":1},{"threshold":"tmax_ge_100f","year":1955,"days":1,"first":"1955-08-05","last":"1955-08-05","longest_streak":1},{"threshold":"tmax_ge_100f","year":1975,"days":1,"first":"1975-08-02","last":"1975-08-02","longest_streak":1},{"threshold":"tmax_ge_100f","year":1977,"days":1,"first":"1977-07-21","last":"1977-07-21","longest_streak":1},{"threshold":"tmax_ge_100f","year":1995,"days":1,"first":"1995-07-14","last":"1995-07-14","longest_streak":1},{"threshold":"tmax_ge_100f","year":2002,"days":1,"first":"2002-08-14","last":"2002-08-14","longest_streak":1},{"threshold":"tmax_ge_100f","year":2010,"days":1,"first":"2010-07-06","last":"2010-07-06","longest_streak":1},{"threshold":"tmax_ge_100f","year":2011,"days":1,"first":"2011-07-22","last":"2011-07-22","longest_streak":1},{"threshold":"tmax_ge_100f","year":2021,"days":1,"first":"2021-06-30","last":"2021-06-30","longest_streak":1},{"threshold":"tmax_ge_100f","year":2022,"days":1,"first":"2022-07-24","last":"2022-07-24","longest_streak":1},{"threshold":"tmax_ge_100f","year":2025,"days":1,"first":"2025-06-24","last":"2025-06-24","longest_streak":1},{"threshold":"tmax_ge_100f","year":2026,"days":2,"first":"2026-07-02","last":"2026-07-03","longest_streak":2}]}