{"title":"Rocky Boy: threshold days by year","description":"Days at or beyond each fixed threshold at Rocky Boy, by year.","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/stations/USC00247148/thresholds/","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":"prcp_ge_10mm","year":1952,"days":8,"first":"1952-05-03","last":"1952-07-20","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1953,"days":15,"first":"1953-03-06","last":"1953-12-20","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1954,"days":18,"first":"1954-03-10","last":"1954-10-24","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1956,"days":9,"first":"1956-05-08","last":"1956-11-18","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1957,"days":10,"first":"1957-05-21","last":"1957-10-19","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1958,"days":11,"first":"1958-02-26","last":"1958-11-04","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1959,"days":10,"first":"1959-04-14","last":"1959-11-23","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1960,"days":9,"first":"1960-04-12","last":"1960-10-29","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1961,"days":6,"first":"1961-05-07","last":"1961-09-11","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1962,"days":2,"first":"1962-06-13","last":"1962-07-13","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1963,"days":9,"first":"1963-01-19","last":"1963-09-02","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1964,"days":18,"first":"1964-04-02","last":"1964-09-25","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1965,"days":14,"first":"1965-01-21","last":"1965-09-15","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1966,"days":16,"first":"1966-04-26","last":"1966-10-02","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1967,"days":7,"first":"1967-03-29","last":"1967-09-13","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1970,"days":10,"first":"1970-04-29","last":"1970-12-17","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1971,"days":12,"first":"1971-01-09","last":"1971-09-02","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1976,"days":6,"first":"1976-06-07","last":"1976-11-25","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1980,"days":8,"first":"1980-04-10","last":"1980-10-27","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1981,"days":9,"first":"1981-03-30","last":"1981-09-25","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1986,"days":16,"first":"1986-05-05","last":"1986-10-31","longest_streak":3},{"threshold":"prcp_ge_25mm","year":1952,"days":1,"first":"1952-07-20","last":"1952-07-20","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1953,"days":5,"first":"1953-05-24","last":"1953-06-03","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1954,"days":2,"first":"1954-06-11","last":"1954-08-05","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1956,"days":3,"first":"1956-06-16","last":"1956-08-30","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1957,"days":1,"first":"1957-05-21","last":"1957-05-21","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1958,"days":1,"first":"1958-10-20","last":"1958-10-20","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1959,"days":2,"first":"1959-05-18","last":"1959-06-27","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1960,"days":1,"first":"1960-08-23","last":"1960-08-23","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1961,"days":1,"first":"1961-05-31","last":"1961-05-31","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1962,"days":1,"first":"1962-07-13","last":"1962-07-13","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1964,"days":6,"first":"1964-05-03","last":"1964-08-28","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1965,"days":5,"first":"1965-05-05","last":"1965-09-03","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1966,"days":2,"first":"1966-07-03","last":"1966-08-20","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1967,"days":2,"first":"1967-09-12","last":"1967-09-13","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1970,"days":2,"first":"1970-06-13","last":"1970-06-17","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1971,"days":2,"first":"1971-05-17","last":"1971-06-06","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1980,"days":3,"first":"1980-05-25","last":"1980-10-27","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1981,"days":4,"first":"1981-05-07","last":"1981-08-02","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1986,"days":7,"first":"1986-05-05","last":"1986-09-25","longest_streak":2},{"threshold":"prcp_ge_50mm","year":1953,"days":1,"first":"1953-06-03","last":"1953-06-03","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1958,"days":1,"first":"1958-10-20","last":"1958-10-20","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1959,"days":1,"first":"1959-06-27","last":"1959-06-27","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1961,"days":1,"first":"1961-05-31","last":"1961-05-31","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1964,"days":3,"first":"1964-05-03","last":"1964-08-20","longest_streak":2},{"threshold":"prcp_ge_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