{"title":"Upper Dam: threshold days by year","description":"Days at or beyond each fixed threshold at Upper Dam, 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/USC00178942/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":"tmax_ge_30c","year":2011,"days":2,"first":"2011-07-22","last":"2011-07-23","longest_streak":2},{"threshold":"tmax_ge_30c","year":2012,"days":3,"first":"2012-06-22","last":"2012-07-16","longest_streak":2},{"threshold":"tmax_ge_30c","year":2013,"days":5,"first":"2013-07-15","last":"2013-07-20","longest_streak":4},{"threshold":"tmax_le_0c","year":2011,"days":76,"first":"2011-01-04","last":"2011-12-31","longest_streak":33},{"threshold":"tmax_le_0c","year":2012,"days":73,"first":"2012-01-04","last":"2012-12-31","longest_streak":16},{"threshold":"tmax_le_0c","year":2013,"days":65,"first":"2013-01-01","last":"2013-11-30","longest_streak":11},{"threshold":"tmin_le_0c","year":2011,"days":173,"first":"2011-01-01","last":"2011-12-31","longest_streak":99},{"threshold":"tmin_le_0c","year":2012,"days":178,"first":"2012-01-01","last":"2012-12-31","longest_streak":99},{"threshold":"tmin_le_0c","year":2013,"days":158,"first":"2013-01-01","last":"2013-11-30","longest_streak":33},{"threshold":"tmin_le_m10c","year":2011,"days":80,"first":"2011-01-05","last":"2011-12-31","longest_streak":24},{"threshold":"tmin_le_m10c","year":2012,"days":70,"first":"2012-01-03","last":"2012-12-31","longest_streak":12},{"threshold":"tmin_le_m10c","year":2013,"days":61,"first":"2013-01-01","last":"2013-11-30","longest_streak":13},{"threshold":"tmin_le_m20c","year":2011,"days":22,"first":"2011-01-15","last":"2011-03-05","longest_streak":4},{"threshold":"tmin_le_m20c","year":2012,"days":15,"first":"2012-01-04","last":"2012-03-07","longest_streak":5},{"threshold":"tmin_le_m20c","year":2013,"days":17,"first":"2013-01-03","last":"2013-02-08","longest_streak":8},{"threshold":"prcp_ge_10mm","year":1949,"days":23,"first":"1949-01-06","last":"1949-12-27","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1950,"days":29,"first":"1950-01-06","last":"1950-12-05","longest_streak":5},{"threshold":"prcp_ge_10mm","year":1951,"days":35,"first":"1951-01-24","last":"1951-12-21","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1952,"days":20,"first":"1952-02-18","last":"1952-12-24","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1953,"days":36,"first":"1953-01-03","last":"1953-12-10","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1954,"days":52,"first":"1954-01-06","last":"1954-12-30","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1955,"days":26,"first":"1955-02-07","last":"1955-11-04","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1956,"days":29,"first":"1956-01-08","last":"1956-12-29","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1957,"days":31,"first":"1957-01-23","last":"1957-12-26","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1958,"days":37,"first":"1958-01-08","last":"1958-11-29","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1959,"days":35,"first":"1959-01-02","last":"1959-12-29","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1960,"days":25,"first":"1960-01-03","last":"1960-12-21","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1961,"days":25,"first":"1961-01-01","last":"1961-12-28","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1962,"days":32,"first":"1962-02-24","last":"1962-12-22","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1963,"days":33,"first":"1963-01-27","last":"1963-12-09","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1964,"days":22,"first":"1964-01-21","last":"1964-12-28","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1965,"days":19,"first":"1965-02-10","last":"1965-11-27","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1966,"days":24,"first":"1966-01-24","last":"1966-12-29","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1967,"days":18,"first":"1967-01-28","last":"1967-12-29","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1968,"days":27,"first":"1968-01-15","last":"1968-12-28","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1969,"days":31,"first":"1969-01-07","last":"1969-12-27","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1970,"days":28,"first":"1970-02-03","last":"1970-12-24","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1971,"days":29,"first":"1971-01-26","last":"1971-12-24","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1972,"days":34,"first":"1972-02-04","last":"1972-12-29","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1973,"days":34,"first":"1973-01-20","last":"1973-11-16","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1974,"days":28,"first":"1974-02-22","last":"1974-12-17","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1976,"days":39,"first":"1976-01-03","last":"1976-12-29","longest_streak":2},{"threshold":"prcp_ge_10mm","year":2011,"days":42,"first":"2011-01-19","last":"2011-12-28","longest_streak":2},{"threshold":"prcp_ge_10mm","year":2012,"days":35,"first":"2012-02-25","last":"2012-12-28","longest_streak":3},{"threshold":"prcp_ge_10mm","year":2013,"days":26,"first":"2013-02-01","last":"2013-11-28","longest_strea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