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Built 2026-10-19 (19 October 2026)

Hamilton Downs Threshold Days by Year (ASN00037023)

5 fixed thresholds counted per year at Hamilton Downs (ASN00037023): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hamilton Downs Thresholds

  • Hamilton Downs: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 1950 with 25.
  • Hamilton Downs: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 1936 with 12.
  • Hamilton Downs: days with 50 mm (1.97 in) or more of precipitation in 26 years, most in 1917 with 6.
  • Hamilton Downs: days with 100 mm (3.94 in) or more of precipitation in 6 years, most in 1936 with 2.
  • 5 fixed thresholds have at least one qualifying day at Hamilton Downs.
38 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Hamilton Downs Days per year at Hamilton Downs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 25 in 1950. 01020301911: 121912: 131913: 151914: 101915: 61917: 171918: 181919: 111920: 161921: 131922: 111923: 31924: 201928: 21929: 101933: 91934: 121935: 61936: 201937: 91938: 131939: 111940: 141941: 211942: 91943: 91944: 111945: 91946: 121947: 101948: 41949: 91950: 251951: 101952: 51953: 81954: 121955: 141911191519201924193419381942194619501954
Days per year at Hamilton Downs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 25 in 1950.
Days with 10 mm (0.39 in) or more of precipitation per year at Hamilton Downs
YearDaysDecade average
19111212.8
19121312.8
19131512.8
19141012.8
1915612.8
19171712.8
19181812.8
19191112.8
19201610.7
19211310.7
19221110.7
1923310.7
19242010.7
1928210.7
19291010.7
1933911.4
19341211.4
1935611.4
19362011.4
1937911.4
19381311.4
19391111.4
19401410.8
19412110.8
1942910.8
1943910.8
19441110.8
1945910.8
19461210.8
19471010.8
1948410.8
1949910.8
19502512.3
19511012.3
1952512.3
1953812.3
19541212.3
19551412.3
First to last qualifying date each year at Hamilton Downs For each year, a bar from the first to the last day at Hamilton Downs meeting 10 mm (0.39 in). 1911: 6 January 1911 to 29 November 19111912: 8 February 1912 to 28 December 19121913: 3 January 1913 to 28 December 19131914: 4 January 1914 to 4 November 19141915: 20 January 1915 to 22 September 19151917: 1 January 1917 to 13 December 19171918: 5 January 1918 to 1 November 19181919: 15 January 1919 to 1 December 19191920: 19 January 1920 to 6 December 19201921: 3 January 1921 to 25 December 19211922: 30 January 1922 to 21 December 19221923: 6 March 1923 to 4 June 19231924: 5 January 1924 to 14 December 19241928: 12 December 1928 to 17 December 19281929: 1 January 1929 to 17 November 19291933: 27 January 1933 to 5 December 19331934: 28 January 1934 to 16 October 19341935: 20 January 1935 to 4 November 19351936: 5 January 1936 to 30 December 19361937: 2 January 1937 to 26 December 19371938: 1 January 1938 to 23 July 19381939: 18 January 1939 to 26 November 19391940: 8 February 1940 to 31 December 19401941: 7 January 1941 to 4 November 19411942: 16 January 1942 to 25 November 19421943: 3 February 1943 to 19 December 19431944: 7 February 1944 to 19 December 19441945: 6 January 1945 to 18 December 19451946: 6 January 1946 to 27 December 19461947: 3 January 1947 to 31 December 19471948: 13 January 1948 to 13 June 19481949: 23 February 1949 to 19 December 19491950: 12 February 1950 to 19 December 19501951: 12 January 1951 to 28 December 19511952: 23 January 1952 to 26 December 19521953: 7 January 1953 to 26 December 19531954: 1 January 1954 to 3 December 19541955: 24 January 1955 to 8 June 195519111917192219331938194319481953JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Hamilton Downs meeting 10 mm (0.39 in).
First to last qualifying date each year at Hamilton Downs
YearFirst dateLast date
19111911-01-061911-11-29
19121912-02-081912-12-28
19131913-01-031913-12-28
19141914-01-041914-11-04
19151915-01-201915-09-22
19171917-01-011917-12-13
19181918-01-051918-11-01
19191919-01-151919-12-01
19201920-01-191920-12-06
19211921-01-031921-12-25
19221922-01-301922-12-21
19231923-03-061923-06-04
19241924-01-051924-12-14
19281928-12-121928-12-17
19291929-01-011929-11-17
19331933-01-271933-12-05
19341934-01-281934-10-16
19351935-01-201935-11-04
19361936-01-051936-12-30
19371937-01-021937-12-26
19381938-01-011938-07-23
19391939-01-181939-11-26
19401940-02-081940-12-31
19411941-01-071941-11-04
19421942-01-161942-11-25
19431943-02-031943-12-19
19441944-02-071944-12-19
19451945-01-061945-12-18
19461946-01-061946-12-27
19471947-01-031947-12-31
19481948-01-131948-06-13
19491949-02-231949-12-19
19501950-02-121950-12-19
19511951-01-121951-12-28
19521952-01-231952-12-26
19531953-01-071953-12-26
19541954-01-011954-12-03
19551955-01-241955-06-08

Every Fixed Threshold

Fixed thresholds at Hamilton Downs
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3825195014
25 mm (0.98 in): Days with 25 mm or more rain381219369
50 mm (1.97 in): Days with 50 mm or more rain26619176
100 mm (3.94 in): Days with 100 mm or more rain6219361
200 mm (7.87 in): Days with 200 mm or more rain2119361

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1911.

Download the Data

  • Data for Hamilton Downs 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).