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Data as of 2025-12-31
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Built 2026-10-16 (16 October 2026)

Koomooloo Threshold Days by Year

3 fixed thresholds counted per year at Koomooloo (ASN00020008): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Koomooloo Thresholds

  • Koomooloo: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 1889 with 12.
  • Koomooloo: days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 1908 with 3.
  • Koomooloo: days with 50 mm (1.97 in) or more of precipitation in 4 years, most in 1919 with 2.
  • 3 fixed thresholds have at least one qualifying day at Koomooloo.
52 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Koomooloo Days per year at Koomooloo with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 12 in 1889. 0510151886: 41887: 91888: 11889: 121890: 71891: 61892: 81893: 71894: 111895: 31896: 51897: 41898: 41899: 71900: 21901: 31902: 11904: 41905: 31906: 91907: 41908: 61909: 41910: 91911: 71912: 61913: 61914: 31915: 21916: 91917: 101918: 31919: 61920: 71922: 21923: 11924: 61927: 21942: 61943: 21944: 31945: 41960: 71961: 81962: 61963: 91964: 71965: 51966: 71968: 61969: 61970: 3188618921898190519111917192419601966
Days per year at Koomooloo with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 12 in 1889.
Days with 10 mm (0.39 in) or more of precipitation per year at Koomooloo
YearDaysDecade average
188646.5
188796.5
188816.5
1889126.5
189076.2
189166.2
189286.2
189376.2
1894116.2
189536.2
189656.2
189746.2
189846.2
189976.2
190024
190134
190214
190444
190534
190694
190744
190864
190944
191096.1
191176.1
191266.1
191366.1
191436.1
191526.1
191696.1
1917106.1
191836.1
191966.1
192073.6
192223.6
192313.6
192463.6
192723.6
194263.8
194323.8
194433.8
194543.8
196076.8
196186.8
196266.8
196396.8
196476.8
196556.8
196676.8
196866.8
196966.8
197033
First to last qualifying date each year at Koomooloo For each year, a bar from the first to the last day at Koomooloo meeting 10 mm (0.39 in). 1886: 24 July 1886 to 4 December 18861887: 2 February 1887 to 15 December 18871888: 31 August 1888 to 31 August 18881889: 1 January 1889 to 14 November 18891890: 10 January 1890 to 14 December 18901891: 27 March 1891 to 20 September 18911892: 23 January 1892 to 19 November 18921893: 8 April 1893 to 11 November 18931894: 6 March 1894 to 26 December 18941895: 4 January 1895 to 20 August 18951896: 24 January 1896 to 5 July 18961897: 18 February 1897 to 13 August 18971898: 2 April 1898 to 30 August 18981899: 26 February 1899 to 14 October 18991900: 22 April 1900 to 17 May 19001901: 17 August 1901 to 20 December 19011902: 17 December 1902 to 17 December 19021904: 19 February 1904 to 19 October 19041905: 3 January 1905 to 22 October 19051906: 1 March 1906 to 11 December 19061907: 5 April 1907 to 8 November 19071908: 31 January 1908 to 16 October 19081909: 13 May 1909 to 22 June 19091910: 5 March 1910 to 10 September 19101911: 7 February 1911 to 1 December 19111912: 9 March 1912 to 15 November 19121913: 4 March 1913 to 27 October 19131914: 25 January 1914 to 15 December 19141915: 25 August 1915 to 29 October 19151916: 12 January 1916 to 25 November 19161917: 14 February 1917 to 12 December 19171918: 5 April 1918 to 15 May 19181919: 16 February 1919 to 28 December 19191920: 13 April 1920 to 25 December 19201922: 2 May 1922 to 3 May 19221923: 24 October 1923 to 24 October 19231924: 3 January 1924 to 14 December 19241927: 5 January 1927 to 1 September 19271942: 20 January 1942 to 12 September 19421943: 18 February 1943 to 15 June 19431944: 23 January 1944 to 21 December 19441945: 20 June 1945 to 27 December 19451960: 9 January 1960 to 12 November 19601961: 9 February 1961 to 22 November 19611962: 17 January 1962 to 29 December 19621963: 14 January 1963 to 25 August 19631964: 23 August 1964 to 22 December 19641965: 22 June 1965 to 4 December 19651966: 13 January 1966 to 4 December 19661968: 19 January 1968 to 2 July 19681969: 9 February 1969 to 5 November 19691970: 27 September 1970 to 11 December 197018861893190019081915192319601968JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Koomooloo meeting 10 mm (0.39 in).
First to last qualifying date each year at Koomooloo
YearFirst dateLast date
18861886-07-241886-12-04
18871887-02-021887-12-15
18881888-08-311888-08-31
18891889-01-011889-11-14
18901890-01-101890-12-14
18911891-03-271891-09-20
18921892-01-231892-11-19
18931893-04-081893-11-11
18941894-03-061894-12-26
18951895-01-041895-08-20
18961896-01-241896-07-05
18971897-02-181897-08-13
18981898-04-021898-08-30
18991899-02-261899-10-14
19001900-04-221900-05-17
19011901-08-171901-12-20
19021902-12-171902-12-17
19041904-02-191904-10-19
19051905-01-031905-10-22
19061906-03-011906-12-11
19071907-04-051907-11-08
19081908-01-311908-10-16
19091909-05-131909-06-22
19101910-03-051910-09-10
19111911-02-071911-12-01
19121912-03-091912-11-15
19131913-03-041913-10-27
19141914-01-251914-12-15
19151915-08-251915-10-29
19161916-01-121916-11-25
19171917-02-141917-12-12
19181918-04-051918-05-15
19191919-02-161919-12-28
19201920-04-131920-12-25
19221922-05-021922-05-03
19231923-10-241923-10-24
19241924-01-031924-12-14
19271927-01-051927-09-01
19421942-01-201942-09-12
19431943-02-181943-06-15
19441944-01-231944-12-21
19451945-06-201945-12-27
19601960-01-091960-11-12
19611961-02-091961-11-22
19621962-01-171962-12-29
19631963-01-141963-08-25
19641964-08-231964-12-22
19651965-06-221965-12-04
19661966-01-131966-12-04
19681968-01-191968-07-02
19691969-02-091969-11-05
19701970-09-271970-12-11

Every Fixed Threshold

Fixed thresholds at Koomooloo
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain521218893
25 mm (0.98 in): Days with 25 mm or more rain28319081
50 mm (1.97 in): Days with 50 mm or more rain4219191

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1886.

Download the Data

  • Data for Koomooloo 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

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