{"title":"San Marcos: threshold days by year","description":"Days at or beyond each fixed threshold at San Marcos, 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/MXN00014183/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":1986,"days":93,"first":"1986-02-15","last":"1986-11-18","longest_streak":45},{"threshold":"tmax_ge_30c","year":1987,"days":99,"first":"1987-04-10","last":"1987-10-26","longest_streak":34},{"threshold":"tmax_ge_30c","year":1988,"days":146,"first":"1988-02-01","last":"1988-12-25","longest_streak":25},{"threshold":"tmax_ge_35c","year":1986,"days":13,"first":"1986-03-30","last":"1986-05-19","longest_streak":3},{"threshold":"tmax_ge_35c","year":1988,"days":39,"first":"1988-03-24","last":"1988-10-31","longest_streak":8},{"threshold":"tmax_ge_40c","year":1988,"days":2,"first":"1988-03-24","last":"1988-03-25","longest_streak":2},{"threshold":"tmax_ge_90f","year":1986,"days":39,"first":"1986-03-30","last":"1986-06-02","longest_streak":12},{"threshold":"tmax_ge_90f","year":1987,"days":13,"first":"1987-04-15","last":"1987-06-04","longest_streak":3},{"threshold":"tmax_ge_90f","year":1988,"days":72,"first":"1988-02-03","last":"1988-10-31","longest_streak":13},{"threshold":"tmax_ge_100f","year":1988,"days":2,"first":"1988-03-24","last":"1988-03-25","longest_streak":2},{"threshold":"tmax_ge_110f","year":1988,"days":2,"first":"1988-03-24","last":"1988-03-25","longest_streak":2},{"threshold":"tmin_le_0c","year":1988,"days":5,"first":"1988-01-19","last":"1988-01-23","longest_streak":5},{"threshold":"tmin_ge_20c","year":1987,"days":8,"first":"1987-06-13","last":"1987-09-12","longest_streak":2},{"threshold":"tmin_ge_20c","year":1988,"days":1,"first":"1988-07-29","last":"1988-07-29","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1948,"days":48,"first":"1948-03-03","last":"1948-11-27","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1960,"days":35,"first":"1960-06-12","last":"1960-12-31","longest_streak":5},{"threshold":"prcp_ge_10mm","year":1961,"days":29,"first":"1961-01-22","last":"1961-09-21","longest_streak":5},{"threshold":"prcp_ge_10mm","year":1962,"days":56,"first":"1962-06-20","last":"1962-12-23","longest_streak":5},{"threshold":"prcp_ge_10mm","year":1963,"days":57,"first":"1963-03-01","last":"1963-12-15","longest_streak":6},{"threshold":"prcp_ge_10mm","year":1964,"days":31,"first":"1964-01-06","last":"1964-10-31","longest_streak":5},{"threshold":"prcp_ge_10mm","year":1966,"days":19,"first":"1966-02-11","last":"1966-10-04","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1967,"days":32,"first":"1967-01-31","last":"1967-10-15","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1968,"days":12,"first":"1968-02-29","last":"1968-12-31","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1969,"days":8,"first":"1969-05-25","last":"1969-12-31","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1970,"days":2,"first":"1970-02-22","last":"1970-09-30","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1971,"days":3,"first":"1971-01-31","last":"1971-08-31","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1972,"days":5,"first":"1972-05-31","last":"1972-10-31","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1973,"days":2,"first":"1973-07-31","last":"1973-08-31","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1974,"days":2,"first":"1974-05-31","last":"1974-06-30","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1975,"days":3,"first":"1975-06-30","last":"1975-08-31","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1976,"days":6,"first":"1976-06-30","last":"1976-12-31","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1986,"days":29,"first":"1986-06-11","last":"1986-11-04","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1987,"days":29,"first":"1987-01-12","last":"1987-09-30","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1988,"days":36,"first":"1988-06-12","last":"1988-09-14","longest_streak":8},{"threshold":"prcp_ge_10mm","year":1989,"days":35,"first":"1989-05-28","last":"1989-09-22","longest_streak":5},{"threshold":"prcp_ge_25mm","year":1948,"days":20,"first":"1948-06-18","last":"1948-10-14","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1960,"days":12,"first":"1960-06-12","last":"1960-07-26","longest_streak":4},{"threshold":"prcp_ge_25mm","year":1961,"days":3,"first":"1961-07-01","last":"1961-07-27","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1962,"days":17,"first":"1962-06-21","last":"1962-10-09","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1963,"days":10,"first":"1963-06-17","last":"1963-09-30","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1964,"days":4,"first":"1964-06-30","last":"1964-10-31","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1966,"days":3,"first":"1966-06-30","last":"1966-09-30","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1967,"days":2,"first":"1967-05-31","last":"1967-06-30","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1968,"days":2,"first":"1968-03-31","last":"1968-06-30","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1969,"days":1,"first":"1969-06-30","last":"1969-06-30","longest_streak":1},{"threshold":"p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