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Built 2026-10-19 (19 October 2026)

Colac (Shire Office) Threshold Days by Year (ASN00090147)

12 fixed thresholds counted per year at Colac (Shire Office) (ASN00090147): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Colac (Shire Office) Thresholds

  • Colac (Shire Office): days with 10 mm (0.39 in) or more of precipitation in 87 years, most in 1964 with 39.
  • Colac (Shire Office): days with 25 mm (0.98 in) or more of precipitation in 75 years, most in 1942 with 7.
  • Colac (Shire Office): days with a maximum temperature at or above 30 C (86 F) in 23 years, most in 1982 with 45.
  • Colac (Shire Office): days with a maximum temperature at or above 35 C (95 F) in 23 years, most in 1982 with 16.
  • 12 fixed thresholds have at least one qualifying day at Colac (Shire Office).
23 years with a qualifying day
Days at or above 30 C (86 F) per year at Colac (Shire Office) Days per year at Colac (Shire Office) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 45 in 1982. 02040601957: 181958: 161960: 281961: 371962: 271963: 251964: 131965: 231966: 281967: 291970: 191971: 271972: 231973: 251974: 291975: 301976: 261977: 291978: 181979: 321980: 251981: 251982: 4519571961196419671972197519781981
Days per year at Colac (Shire Office) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 45 in 1982.
Days at or above 30 C (86 F) per year at Colac (Shire Office)
YearDaysDecade average
19571817
19581617
19602826.3
19613726.3
19622726.3
19632526.3
19641326.3
19652326.3
19662826.3
19672926.3
19701925.8
19712725.8
19722325.8
19732525.8
19742925.8
19753025.8
19762625.8
19772925.8
19781825.8
19793225.8
19802531.7
19812531.7
19824531.7
First to last qualifying date each year at Colac (Shire Office) For each year, a bar from the first to the last day at Colac (Shire Office) meeting 30 C (86 F). 1957: 2 January 1957 to 28 December 19571958: 9 January 1958 to 28 November 19581960: 6 January 1960 to 31 December 19601961: 7 January 1961 to 27 December 19611962: 7 January 1962 to 31 December 19621963: 8 January 1963 to 28 December 19631964: 5 January 1964 to 20 December 19641965: 9 January 1965 to 28 December 19651966: 8 January 1966 to 28 December 19661967: 9 January 1967 to 27 December 19671970: 8 January 1970 to 26 December 19701971: 6 January 1971 to 23 December 19711972: 8 January 1972 to 20 December 19721973: 1 January 1973 to 29 December 19731974: 3 January 1974 to 23 December 19741975: 1 January 1975 to 28 December 19751976: 3 January 1976 to 31 December 19761977: 6 January 1977 to 31 December 19771978: 1 January 1978 to 26 November 19781979: 1 January 1979 to 30 December 19791980: 3 January 1980 to 31 December 19801981: 1 January 1981 to 31 December 19811982: 9 January 1982 to 31 December 198219571961196419671972197519781981JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Colac (Shire Office) meeting 30 C (86 F).
First to last qualifying date each year at Colac (Shire Office)
YearFirst dateLast date
19571957-01-021957-12-28
19581958-01-091958-11-28
19601960-01-061960-12-31
19611961-01-071961-12-27
19621962-01-071962-12-31
19631963-01-081963-12-28
19641964-01-051964-12-20
19651965-01-091965-12-28
19661966-01-081966-12-28
19671967-01-091967-12-27
19701970-01-081970-12-26
19711971-01-061971-12-23
19721972-01-081972-12-20
19731973-01-011973-12-29
19741974-01-031974-12-23
19751975-01-011975-12-28
19761976-01-031976-12-31
19771977-01-061977-12-31
19781978-01-011978-11-26
19791979-01-011979-12-30
19801980-01-031980-12-31
19811981-01-011981-12-31
19821982-01-091982-12-31

Every Fixed Threshold

Fixed thresholds at Colac (Shire Office)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2345198245
35 C (95 F): Days2316198216
40 C (104 F): Days8419814
90 F (32.2 C): Days2331198231
100 F (37.8 C): Days17919829
0 C (32 F): Frost days (min214219678
20 C (68 F): Tropical nights (min12519743
25 C (77 F): Days with min1119821
10 mm (0.39 in): Days with 10 mm or more rain8739196413
25 mm (0.98 in): Days with 25 mm or more rain75719421
50 mm (1.97 in): Days with 50 mm or more rain11219331
100 mm (3.94 in): Days with 100 mm or more rain2119731

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1957.

Download the Data

  • Data for Colac (Shire Office) 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 (2026-10-17).