{"title":"Aylmer: threshold days by year","description":"Days at or beyond each fixed threshold at Aylmer, 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/CA006130409/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":1952,"days":28,"first":"1952-06-15","last":"1952-09-13","longest_streak":5},{"threshold":"tmax_ge_30c","year":1953,"days":20,"first":"1953-06-20","last":"1953-09-04","longest_streak":10},{"threshold":"tmax_ge_30c","year":1954,"days":17,"first":"1954-06-12","last":"1954-09-06","longest_streak":4},{"threshold":"tmax_ge_30c","year":1955,"days":42,"first":"1955-06-06","last":"1955-09-19","longest_streak":8},{"threshold":"tmax_ge_30c","year":1972,"days":6,"first":"1972-07-12","last":"1972-07-23","longest_streak":4},{"threshold":"tmax_ge_30c","year":1973,"days":15,"first":"1973-06-11","last":"1973-09-04","longest_streak":4},{"threshold":"tmax_ge_30c","year":1974,"days":8,"first":"1974-07-03","last":"1974-08-21","longest_streak":2},{"threshold":"tmax_ge_30c","year":1975,"days":11,"first":"1975-06-22","last":"1975-08-02","longest_streak":4},{"threshold":"tmax_ge_30c","year":1976,"days":8,"first":"1976-06-08","last":"1976-09-08","longest_streak":4},{"threshold":"tmax_ge_30c","year":1977,"days":18,"first":"1977-05-17","last":"1977-09-01","longest_streak":7},{"threshold":"tmax_ge_30c","year":1978,"days":12,"first":"1978-05-27","last":"1978-09-06","longest_streak":3},{"threshold":"tmax_ge_35c","year":1953,"days":1,"first":"1953-09-03","last":"1953-09-03","longest_streak":1},{"threshold":"tmax_ge_35c","year":1955,"days":5,"first":"1955-07-05","last":"1955-08-03","longest_streak":3},{"threshold":"tmax_ge_90f","year":1952,"days":6,"first":"1952-06-25","last":"1952-09-13","longest_streak":2},{"threshold":"tmax_ge_90f","year":1953,"days":12,"first":"1953-07-16","last":"1953-09-04","longest_streak":10},{"threshold":"tmax_ge_90f","year":1954,"days":6,"first":"1954-07-13","last":"1954-09-06","longest_streak":2},{"threshold":"tmax_ge_90f","year":1955,"days":28,"first":"1955-06-18","last":"1955-09-19","longest_streak":8},{"threshold":"tmax_ge_90f","year":1972,"days":2,"first":"1972-07-21","last":"1972-07-22","longest_streak":2},{"threshold":"tmax_ge_90f","year":1973,"days":8,"first":"1973-08-27","last":"1973-09-04","longest_streak":4},{"threshold":"tmax_ge_90f","year":1974,"days":4,"first":"1974-07-09","last":"1974-08-21","longest_streak":2},{"threshold":"tmax_ge_90f","year":1975,"days":3,"first":"1975-07-31","last":"1975-08-02","longest_streak":3},{"threshold":"tmax_ge_90f","year":1977,"days":5,"first":"1977-07-06","last":"1977-07-21","longest_streak":2},{"threshold":"tmax_ge_90f","year":1978,"days":1,"first":"1978-06-27","last":"1978-06-27","longest_streak":1},{"threshold":"tmax_le_0c","year":1952,"days":21,"first":"1952-02-13","last":"1952-12-31","longest_streak":6},{"threshold":"tmax_le_0c","year":1953,"days":40,"first":"1953-01-04","last":"1953-12-31","longest_streak":6},{"threshold":"tmax_le_0c","year":1954,"days":32,"first":"1954-01-03","last":"1954-12-22","longest_streak":5},{"threshold":"tmax_le_0c","year":1955,"days":58,"first":"1955-01-07","last":"1955-12-31","longest_streak":13},{"threshold":"tmax_le_0c","year":1972,"days":52,"first":"1972-01-04","last":"1972-12-29","longest_streak":8},{"threshold":"tmax_le_0c","year":1973,"days":40,"first":"1973-01-05","last":"1973-12-31","longest_streak":15},{"threshold":"tmax_le_0c","year":1974,"days":41,"first":"1974-01-01","last":"1974-11-30","longest_streak":11},{"threshold":"tmax_le_0c","year":1975,"days":55,"first":"1975-01-13","last":"1975-12-28","longest_streak":12},{"threshold":"tmax_le_0c","year":1976,"days":61,"first":"1976-01-01","last":"1976-12-31","longest_streak":46},{"threshold":"tmax_le_0c","year":1977,"days":66,"first":"1977-01-01","last":"1977-12-31","longest_streak":11},{"threshold":"tmax_le_0c","year":1978,"days":76,"first":"1978-01-01","last":"1978-12-29","longest_streak":28},{"threshold":"tmin_le_0c","year":1952,"days":136,"first":"1952-01-01","last":"1952-12-31","longest_streak":28},{"threshold":"tmin_le_0c","year":1953,"days":122,"first":"1953-01-01","last":"1953-12-31","longest_streak":26},{"threshold":"tmin_le_0c","year":1954,"days":134,"first":"1954-01-01","last":"1954-12-31","longest_streak":54},{"threshold":"tmin_le_0c","year":1955,"days":139,"first":"1955-01-01","last":"1955-12-31","longest_streak":88},{"threshold":"tmin_le_0c","year":1972,"days":155,"first":"1972-01-01","last":"1972-12-30","longest_streak":26},{"threshold":"tmin_le_0c","year":1973,"days":125,"first":"1973-01-01","last":"1973-12-31","longest_streak":30},{"threshold":"tmin_le_0c","year":1974,"days":128,"first":"1974-01-01","last":"1974-11-30","longest_streak":26},{"threshold":"tmin_le_0c","year":1975,"days":157,"first":"1975-01-01","last":"1975-12-30","longest_streak":42},{"threshold":"tmin_le_0c","year":1976,"days":165,"first":"1976-01-01","last":"1976-12-31","longest_streak":54},{"threshold":"tmin_le_0c","year":1977,"days":123,"first":"1977-01-01","last":"1977-12-31","longest_streak":24},{"threshold":"tmin_le_0c","year":1978,"days":155,"first":"1978-01-01","last":"1978-12-31","longest_streak":85},{"threshold":"tmin_le_m10c","year":1952,"days":23,"first":"1952-01-03","last":"1952-12-28","longest_streak":4},{"threshold":"tmin_le_m10c","year":1953,"days":13,"first":"1953-01-06","last":"1953-12-31","longest_streak":3},{"threshold":"tmin_le_m10c","year":1954,"days":24,"first":"1954-01-01","last":"1954-12-22","longest_streak":7},{"threshold":"tmin_le_m10c","year":1955,"days":29,"first":"1955-01-17","last":"1955-12-28","longest_streak":6},{"threshold":"tmin_le_m10c","year":1972,"days":48,"first":"1972-01-05","last":"1972-12-18","longest_streak":8},{"threshold":"tmin_le_m10c","year":1973,"days":36,"first":"1973-01-02","last":"1973-12-24","longest_streak":8},{"threshold":"tmin_le_m10c","year":1974,"days":34,"first":"1974-01-01","last":"1974-03-25","longest_streak":10},{"threshold":"tmin_le_m10c","year":1975,"days":41,"first":"1975-01-02","last":"1975-12-29","longest_streak":8},{"threshold":"tmin_le_m10c","year":1976,"days":52,"first":"1976-01-02","last":"1976-12-31","longest_streak":8},{"threshold":"tmin_le_m10c","year":1977,"days":44,"first":"1977-01-01","last":"1977-12-29","longest_streak":12},{"threshold":"tmin_le_m10c","year":1978,"days":62,"first":"1978-01-02","last":"1978-12-29","longest_streak":13},{"threshold":"tmin_le_m20c","year":1955,"days":4,"first":"1955-02-03","last":"1955-12-22","longest_streak":2},{"threshold":"tmin_le_m20c","year":1972,"days":6,"first":"1972-01-15","last":"1972-02-11","longest_streak":3},{"threshold":"tmin_le_m20c","year":1973,"days":1,"first":"1973-02-17","last":"1973-02-17","longest_streak":1},{"threshold":"tmin_le_m20c","year":1974,"days":3,"first":"1974-01-05","last":"1974-02-05","longest_streak":1},{"threshold":"tmin_le_m20c","year":1975,"days":3,"first":"1975-01-20","last":"1975-12-22","longest_streak":1},{"threshold":"tmin_le_m20c","year":1976,"days":9,"first":"1976-01-17","last":"1976-12-31","longest_streak":2},{"threshold":"tmin_le_m20c","year":1977,"days":8,"first":"1977-01-13","last":"1977-12-11","longest_streak":3},{"threshold":"tmin_le_m20c","year":1978,"days":6,"first":"1978-02-04","last":"1978-03-02","longest_streak":2},{"threshold":"tmin_le_m30c","year":1976,"days":1,"first":"1976-01-18","last":"1976-01-18","longest_streak":1},{"threshold":"tmin_ge_20c","year":1952,"days":17,"first":"1952-06-17","last":"1952-08-21","longest_streak":4},{"threshold":"tmin_ge_20c","year":1953,"days":12,"first":"1953-06-20","last":"1953-09-04","longest_streak":5},{"threshold":"tmin_ge_20c","year":1954,"days":8,"first":"1954-06-21","last":"1954-09-07","longest_streak":2},{"threshold":"tmin_ge_20c","year":1955,"days":20,"first":"1955-07-06","last":"1955-08-30","longest_streak":5},{"threshold":"tmin_ge_20c","year":1972,"days":9,"first":"1972-07-15","last":"1972-08-23","longest_streak":6},{"threshold":"tmin_ge_20c","year":1973,"days":8,"first":"1973-07-03","last":"1973-09-02","longest_streak":2},{"threshold":"tmin_ge_20c","year":1974,"days":5,"first":"1974-06-10","last":"1974-08-12","longest_streak":1},{"threshold":"tmin_ge_20c","year":1975,"days":1,"first":"1975-08-25","last":"1975-08-25","longest_streak":1},{"threshold":"tmin_ge_20c","year":1976,"days":5,"first":"1976-06-11","last":"1976-08-28","longest_streak":1},{"threshold":"tmin_ge_20c","year":1977,"days":14,"first":"1977-07-05","last":"1977-09-02","longest_streak":3},{"threshold":"tmin_ge_20c","year":1978,"days":11,"first":"1978-06-18","last":"1978-09-06","longest_streak":5},{"threshold":"tmin_ge_25c","year":1952,"days":1,"first":"1952-06-26","last":"1952-06-26","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1949,"days":38,"first":"1949-01-05","last":"1949-12-26","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1950,"days":36,"first":"1950-01-02","last":"1950-12-07","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1951,"days":40,"first":"1951-01-02","last":"1951-12-26","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1952,"days":31,"first":"1952-01-19","last":"1952-12-20","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1953,"days":23,"first":"1953-01-05","last":"1953-12-21","longest_streak":1},{"threshold":"prcp_ge_10mm","year":1954,"days":37,"first":"1954-02-01","last":"1954-12-29","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1955,"days":33,"first":"1955-01-01","last":"1955-12-19","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1973,"days":35,"first":"1973-01-03","last":"1973-12-25","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1975,"days":46,"first":"1975-01-01","last":"1975-12-30","longest_streak":4},{"threshold":"prcp_ge_10mm","year":1976,"days":41,"first":"1976-01-11","last":"1976-12-27","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1977,"days":36,"first":"1977-01-10","last":"1977-12-24","longest_streak":3},{"threshold":"prcp_ge_10mm","year":1978,"days":26,"first":"1978-01-07","last":"1978-12-31","longest_streak":2},{"threshold":"prcp_ge_10mm","year":1979,"days":32,"first":"1979-01-13","last":"1979-12-24","longest_streak":3},{"threshold":"prcp_ge_25mm","year":1949,"days":5,"first":"1949-02-14","last":"1949-12-20","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1950,"days":7,"first":"1950-01-03","last":"1950-12-07","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1951,"days":6,"first":"1951-03-13","last":"1951-11-13","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1952,"days":9,"first":"1952-01-19","last":"1952-12-09","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1953,"days":4,"first":"1953-01-10","last":"1953-07-29","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1954,"days":14,"first":"1954-02-15","last":"1954-10-16","longest_streak":3},{"threshold":"prcp_ge_25mm","year":1955,"days":7,"first":"1955-04-14","last":"1955-11-02","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1973,"days":12,"first":"1973-02-02","last":"1973-12-20","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1975,"days":11,"first":"1975-01-25","last":"1975-09-11","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1976,"days":5,"first":"1976-04-25","last":"1976-11-25","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1977,"days":6,"first":"1977-03-13","last":"1977-12-13","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1978,"days":1,"first":"1978-08-02","last":"1978-08-02","longest_streak":1},{"threshold":"prcp_ge_25mm","year":1979,"days":5,"first":"1979-04-13","last":"1979-12-24","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1952,"days":1,"first":"1952-08-16","last":"1952-08-16","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1953,"days":1,"first":"1953-07-29","last":"1953-07-29","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1954,"days":2,"first":"1954-10-14","last":"1954-10-15","longest_streak":2},{"threshold":"prcp_ge_50mm","year":1955,"days":1,"first":"1955-10-05","last":"1955-10-05","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1977,"days":1,"first":"1977-04-23","last":"1977-04-23","longest_streak":1},{"threshold":"prcp_ge_50mm","year":1979,"days":2,"first":"1979-04-13","last":"1979-08-23","longest_streak":1},{"threshold":"snow_ge_10cm","year":1949,"days":4,"first":"1949-02-03","last":"1949-11-27","longest_streak":1},{"threshold":"snow_ge_10cm","year":1950,"days":2,"first":"1950-03-16","last":"1950-11-23","longest_streak":1},{"threshold":"snow_ge_10cm","year":1951,"days":6,"first":"1951-02-01","last":"1951-12-26","longest_streak":1},{"threshold":"snow_ge_10cm","year":1952,"days":2,"first":"1952-01-19","last":"1952-12-20","longest_streak":1},{"threshold":"snow_ge_10cm","year":1953,"days":3,"first":"1953-01-05","last":"1953-12-16","longest_streak":1},{"threshold":"snow_ge_10cm","year":1954,"days":7,"first":"1954-02-01","last":"1954-03-28","longest_streak":1},{"threshold":"snow_ge_10cm","year":1955,"days":4,"first":"1955-02-14","last":"1955-12-19","longest_streak":1},{"threshold":"snow_ge_10cm","year":1973,"days":5,"first":"1973-02-08","last":"1973-12-20","longest_streak":1},{"threshold":"snow_ge_10cm","year":1974,"days":4,"first":"1974-01-01","last":"1974-02-11","longest_streak":1},{"threshold":"snow_ge_10cm","year":1975,"days":8,"first":"1975-01-01","last":"1975-12-26","longest_streak":1},{"threshold":"snow_ge_10cm","year":1976,"days":11,"first":"1976-01-11","last":"1976-12-27","longest_streak":3},{"threshold":"snow_ge_10cm","year":1977,"days":7,"first":"1977-01-10","last":"1977-12-21","longest_streak":3},{"threshold":"snow_ge_10cm","year":1978,"days":3,"first":"1978-01-25","last":"1978-11-27","longest_streak":2},{"threshold":"snow_ge_25cm","year":1954,"days":1,"first":"1954-03-28","last":"1954-03-28","longest_streak":1},{"threshold":"snow_ge_25cm","year":1973,"days":1,"first":"1973-12-20","last":"1973-12-20","longest_streak":1}]}