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Built 2026-10-19 (19 October 2026)

Woronora Dam Threshold Days by Year (ASN00068070)

5 fixed thresholds counted per year at Woronora Dam (ASN00068070): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Woronora Dam Thresholds

  • Woronora Dam: days with 10 mm (0.39 in) or more of precipitation in 39 years, most in 1950 with 59.
  • Woronora Dam: days with 25 mm (0.98 in) or more of precipitation in 39 years, most in 1950 with 27.
  • Woronora Dam: days with 50 mm (1.97 in) or more of precipitation in 37 years, most in 1950 with 10.
  • Woronora Dam: days with 100 mm (3.94 in) or more of precipitation in 25 years, most in 1963 with 5.
  • 5 fixed thresholds have at least one qualifying day at Woronora Dam.
39 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Woronora Dam Days per year at Woronora Dam with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 59 in 1950. 02040601928: 251929: 291930: 321931: 231932: 211933: 271934: 351935: 201936: 231937: 261938: 251939: 201940: 191941: 171942: 311943: 311944: 191945: 281946: 221947: 291948: 251949: 381950: 591951: 321952: 381953: 201954: 291955: 291956: 381957: 221959: 331960: 331961: 391962: 341963: 441964: 201965: 191968: 111969: 371928193219361940194419481952195619611965
Days per year at Woronora Dam with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 59 in 1950.
Days with 10 mm (0.39 in) or more of precipitation per year at Woronora Dam
YearDaysDecade average
19282527
19292927
19303225.2
19312325.2
19322125.2
19332725.2
19343525.2
19352025.2
19362325.2
19372625.2
19382525.2
19392025.2
19401925.9
19411725.9
19423125.9
19433125.9
19441925.9
19452825.9
19462225.9
19472925.9
19482525.9
19493825.9
19505933.3
19513233.3
19523833.3
19532033.3
19542933.3
19552933.3
19563833.3
19572233.3
19593333.3
19603329.6
19613929.6
19623429.6
19634429.6
19642029.6
19651929.6
19681129.6
19693729.6
First to last qualifying date each year at Woronora Dam For each year, a bar from the first to the last day at Woronora Dam meeting 10 mm (0.39 in). 1928: 6 January 1928 to 12 October 19281929: 5 February 1929 to 19 November 19291930: 12 January 1930 to 30 December 19301931: 3 January 1931 to 23 December 19311932: 5 January 1932 to 31 December 19321933: 4 January 1933 to 6 December 19331934: 7 January 1934 to 30 December 19341935: 6 January 1935 to 4 December 19351936: 5 January 1936 to 26 December 19361937: 9 January 1937 to 29 December 19371938: 23 January 1938 to 1 November 19381939: 17 January 1939 to 12 November 19391940: 5 April 1940 to 21 December 19401941: 3 January 1941 to 20 November 19411942: 19 February 1942 to 31 December 19421943: 4 January 1943 to 18 December 19431944: 2 January 1944 to 30 November 19441945: 12 January 1945 to 28 December 19451946: 12 February 1946 to 29 December 19461947: 13 February 1947 to 25 December 19471948: 2 January 1948 to 31 December 19481949: 1 January 1949 to 20 December 19491950: 2 January 1950 to 31 December 19501951: 14 January 1951 to 26 September 19511952: 7 January 1952 to 30 December 19521953: 4 January 1953 to 7 November 19531954: 1 January 1954 to 19 December 19541955: 23 January 1955 to 26 December 19551956: 21 January 1956 to 8 December 19561957: 5 January 1957 to 31 December 19571959: 4 January 1959 to 19 December 19591960: 5 January 1960 to 19 December 19601961: 2 January 1961 to 27 December 19611962: 8 January 1962 to 25 December 19621963: 15 January 1963 to 28 December 19631964: 7 March 1964 to 2 December 19641965: 11 April 1965 to 1 December 19651968: 5 January 1968 to 5 December 19681969: 2 January 1969 to 30 December 196919281933193819431948195319591964JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Woronora Dam meeting 10 mm (0.39 in).
First to last qualifying date each year at Woronora Dam
YearFirst dateLast date
19281928-01-061928-10-12
19291929-02-051929-11-19
19301930-01-121930-12-30
19311931-01-031931-12-23
19321932-01-051932-12-31
19331933-01-041933-12-06
19341934-01-071934-12-30
19351935-01-061935-12-04
19361936-01-051936-12-26
19371937-01-091937-12-29
19381938-01-231938-11-01
19391939-01-171939-11-12
19401940-04-051940-12-21
19411941-01-031941-11-20
19421942-02-191942-12-31
19431943-01-041943-12-18
19441944-01-021944-11-30
19451945-01-121945-12-28
19461946-02-121946-12-29
19471947-02-131947-12-25
19481948-01-021948-12-31
19491949-01-011949-12-20
19501950-01-021950-12-31
19511951-01-141951-09-26
19521952-01-071952-12-30
19531953-01-041953-11-07
19541954-01-011954-12-19
19551955-01-231955-12-26
19561956-01-211956-12-08
19571957-01-051957-12-31
19591959-01-041959-12-19
19601960-01-051960-12-19
19611961-01-021961-12-27
19621962-01-081962-12-25
19631963-01-151963-12-28
19641964-03-071964-12-02
19651965-04-111965-12-01
19681968-01-051968-12-05
19691969-01-021969-12-30

Every Fixed Threshold

Fixed thresholds at Woronora Dam
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3959195037
25 mm (0.98 in): Days with 25 mm or more rain3927195014
50 mm (1.97 in): Days with 50 mm or more rain371019503
100 mm (3.94 in): Days with 100 mm or more rain25519632
200 mm (7.87 in): Days with 200 mm or more rain1119561

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1928.

Download the Data

  • Data for Woronora Dam threshold days by year: CSV or JSON. Field meanings are on the data page.

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. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).