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Data as of 2026-10-16
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Built 2026-10-17 (17 October 2026)

Cockatoo Island Threshold Days by Year

11 fixed thresholds counted per year at Cockatoo Island (ASN00003025): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cockatoo Island Thresholds

  • Cockatoo Island: days with 10 mm (0.39 in) or more of precipitation in 29 years, most in 1963 with 37.
  • Cockatoo Island: days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 1963 with 20.
  • Cockatoo Island: days with 50 mm (1.97 in) or more of precipitation in 28 years, most in 1960 with 12.
  • Cockatoo Island: days with 100 mm (3.94 in) or more of precipitation in 20 years, most in 1960 with 6.
  • 11 fixed thresholds have at least one qualifying day at Cockatoo Island.
11 years with a qualifying day
Days at or above 30 C (86 F) per year at Cockatoo Island Days per year at Cockatoo Island with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 303 in 1970. 01002003004001965: 2401966: 2341967: 2261968: 2191969: 2371970: 3031971: 2771972: 2441973: 2981974: 2381975: 286196519671969197119731975
Days per year at Cockatoo Island with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 303 in 1970.
Days at or above 30 C (86 F) per year at Cockatoo Island
YearDaysDecade average
1965240231.2
1966234231.2
1967226231.2
1968219231.2
1969237231.2
1970303274.3
1971277274.3
1972244274.3
1973298274.3
1974238274.3
1975286274.3
First to last qualifying date each year at Cockatoo Island For each year, a bar from the first to the last day at Cockatoo Island meeting 30 C (86 F). 1965: 1 January 1965 to 31 December 19651966: 1 January 1966 to 31 December 19661967: 1 January 1967 to 31 December 19671968: 1 January 1968 to 31 December 19681969: 1 January 1969 to 31 December 19691970: 1 January 1970 to 31 December 19701971: 1 January 1971 to 31 December 19711972: 1 January 1972 to 31 December 19721973: 1 January 1973 to 31 December 19731974: 1 January 1974 to 31 December 19741975: 1 January 1975 to 31 December 1975196519671969197119731975JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Cockatoo Island meeting 30 C (86 F).
First to last qualifying date each year at Cockatoo Island
YearFirst dateLast date
19651965-01-011965-12-31
19661966-01-011966-12-31
19671967-01-011967-12-31
19681968-01-011968-12-31
19691969-01-011969-12-31
19701970-01-011970-12-31
19711971-01-011971-12-31
19721972-01-011972-12-31
19731973-01-011973-12-31
19741974-01-011974-12-31
19751975-01-011975-12-31

Every Fixed Threshold

Fixed thresholds at Cockatoo Island
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days113031970286
35 C (95 F): Days1140197540
90 F (32.2 C): Days111571970151
100 F (37.8 C): Days3119681
20 C (68 F): Tropical nights (min103621973359
25 C (77 F): Days with min102481973192
10 mm (0.39 in): Days with 10 mm or more rain2937196331
25 mm (0.98 in): Days with 25 mm or more rain2920196315
50 mm (1.97 in): Days with 50 mm or more rain281219604
100 mm (3.94 in): Days with 100 mm or more rain20619601
200 mm (7.87 in): Days with 200 mm or more rain4119611

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1965.

Download the Data

  • Data for Cockatoo Island 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-16).