{"title":"Upper Swan Research Station: threshold days by year","description":"Days at or beyond each fixed threshold at Upper Swan Research Station, by year.","dataAsOf":"2026-10-16T00:00:00Z","lastRevised":"2026-10-17","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/ASN00009067/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":1958,"days":22,"first":"1958-05-08","last":"1958-12-21","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1959,"days":15,"first":"1959-02-06","last":"1959-11-02","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1960,"days":25,"first":"1960-01-01","last":"1960-08-16","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1961,"days":23,"first":"1961-01-26","last":"1961-12-15","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1962,"days":27,"first":"1962-05-13","last":"1962-11-09","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1963,"days":34,"first":"1963-03-16","last":"1963-10-31","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1964,"days":30,"first":"1964-04-01","last":"1964-10-12","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1965,"days":24,"first":"1965-05-01","last":"1965-12-01","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1966,"days":15,"first":"1966-04-20","last":"1966-12-27","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1967,"days":22,"first":"1967-04-11","last":"1967-10-07","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1969,"days":10,"first":"1969-04-08","last":"1969-11-03","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1974,"days":26,"first":"1974-02-04","last":"1974-11-19","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1976,"days":17,"first":"1976-01-07","last":"1976-11-11","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1977,"days":11,"first":"1977-05-17","last":"1977-09-07","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1980,"days":9,"first":"1980-04-22","last":"1980-10-22","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1982,"days":20,"first":"1982-01-21","last":"1982-09-15","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1984,"days":24,"first":"1984-03-04","last":"1984-12-28","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1991,"days":30,"first":"1991-04-10","last":"1991-12-30","longest_streak":4},{"threshold":"prcp_ge_25mm","year":1958,"days":4,"first":"1958-05-08","last":"1958-07-25","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1959,"days":2,"first":"1959-06-01","last":"1959-10-07","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1960,"days":4,"first":"1960-03-27","last":"1960-07-12","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1961,"days":5,"first":"1961-06-13","last":"1961-08-31","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1962,"days":5,"first":"1962-05-13","last":"1962-07-22","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1963,"days":5,"first":"1963-05-24","last":"1963-07-05","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1964,"days":8,"first":"1964-04-02","last":"1964-10-09","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1965,"days":7,"first":"1965-06-01","last":"1965-10-06","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1966,"days":2,"first":"1966-07-14","last":"1966-07-20","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1967,"days":8,"first":"1967-04-22","last":"1967-08-16","longest_streak":2},{"threshold":"prcp_ge_25mm","year":1969,"days":2,"first":"1969-05-19","last":"1969-06-11","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1974,"days":7,"first":"1974-02-04","last":"1974-11-14","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1976,"days":3,"first":"1976-02-28","last":"1976-05-15","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1977,"days":2,"first":"1977-07-20","last":"1977-08-10","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1980,"days":1,"first":"1980-05-06","last":"1980-05-06","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1982,"days":5,"first":"1982-01-21","last":"1982-09-15","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1984,"days":2,"first":"1984-04-30","last":"1984-09-14","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1991,"days":9,"first":"1991-04-10","last":"1991-12-30","longest_streak":2},{"threshold":"prcp_ge_50mm","year":1967,"days":2,"first":"1967-05-09","last":"1967-05-24","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1991,"days":1,"first":"1991-06-25","last":"1991-06-25","longest_streak":1}]}