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Built 2026-10-19 (19 October 2026)

Hamilton Threshold Days by Year (USC00053738)

6 fixed thresholds counted per year at Hamilton (USC00053738): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hamilton Thresholds

  • Hamilton: days with 10 mm (0.39 in) or more of precipitation in 57 years, most in 1983 with 27.
  • Hamilton: days with 25 mm (0.98 in) or more of precipitation in 32 years, most in 1997 with 6.
  • Hamilton: days with 10 cm (3.9 in) or more of snowfall in 27 years, most in 1948 with 21.
  • Hamilton: days with 25 cm (9.8 in) or more of snowfall in 11 years, most in 1962 with 3.
  • 6 fixed thresholds have at least one qualifying day at Hamilton.
57 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Hamilton Days per year at Hamilton with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1983. 01020301948: 131949: 151950: 101951: 161952: 81953: 141954: 131955: 81956: 81958: 61959: 131960: 111961: 91962: 131963: 81964: 161965: 81966: 111967: 161968: 151969: 261970: 131971: 131972: 131973: 151974: 161975: 111976: 131977: 81978: 121979: 141980: 151981: 171982: 231983: 271984: 241985: 251986: 271987: 151989: 141990: 261991: 91992: 141993: 131994: 101995: 211996: 161997: 211998: 111999: 162000: 142001: 122002: 72003: 132004: 142005: 132006: 151948195419611967197319791985199219982004
Days per year at Hamilton with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1983.
Days with 10 mm (0.39 in) or more of precipitation per year at Hamilton
YearDaysDecade average
19481314
19491514
19501010.7
19511610.7
1952810.7
19531410.7
19541310.7
1955810.7
1956810.7
1958610.7
19591310.7
19601113.3
1961913.3
19621313.3
1963813.3
19641613.3
1965813.3
19661113.3
19671613.3
19681513.3
19692613.3
19701312.8
19711312.8
19721312.8
19731512.8
19741612.8
19751112.8
19761312.8
1977812.8
19781212.8
19791412.8
19801520.8
19811720.8
19822320.8
19832720.8
19842420.8
19852520.8
19862720.8
19871520.8
19891420.8
19902615.7
1991915.7
19921415.7
19931315.7
19941015.7
19952115.7
19961615.7
19972115.7
19981115.7
19991615.7
20001412.6
20011212.6
2002712.6
20031312.6
20041412.6
20051312.6
20061512.6
First to last qualifying date each year at Hamilton For each year, a bar from the first to the last day at Hamilton meeting 10 mm (0.39 in). 1948: 22 February 1948 to 23 December 19481949: 4 January 1949 to 20 December 19491950: 12 January 1950 to 1 December 19501951: 12 February 1951 to 31 December 19511952: 22 January 1952 to 29 August 19521953: 15 January 1953 to 8 December 19531954: 25 January 1954 to 13 October 19541955: 18 February 1955 to 30 December 19551956: 16 January 1956 to 11 November 19561958: 25 February 1958 to 27 November 19581959: 27 March 1959 to 28 October 19591960: 3 February 1960 to 15 November 19601961: 7 March 1961 to 23 September 19611962: 21 January 1962 to 24 December 19621963: 29 March 1963 to 16 November 19631964: 18 January 1964 to 28 December 19641965: 15 May 1965 to 11 December 19651966: 22 March 1966 to 7 December 19661967: 15 February 1967 to 20 December 19671968: 21 February 1968 to 16 November 19681969: 23 January 1969 to 26 December 19691970: 28 January 1970 to 25 November 19701971: 3 February 1971 to 25 December 19711972: 24 February 1972 to 29 December 19721973: 3 March 1973 to 18 December 19731974: 6 January 1974 to 29 December 19741975: 7 January 1975 to 31 December 19751976: 20 February 1976 to 3 October 19761977: 28 March 1977 to 16 December 19771978: 18 January 1978 to 30 December 19781979: 21 March 1979 to 11 December 19791980: 15 January 1980 to 11 September 19801981: 7 March 1981 to 30 December 19811982: 1 January 1982 to 24 December 19821983: 15 February 1983 to 27 December 19831984: 15 February 1984 to 21 December 19841985: 9 January 1985 to 1 December 19851986: 7 January 1986 to 7 December 19861987: 14 February 1987 to 23 December 19871989: 4 February 1989 to 26 November 19891990: 7 February 1990 to 29 December 19901991: 26 April 1991 to 24 October 19911992: 14 February 1992 to 31 December 19921993: 11 March 1993 to 24 November 19931994: 19 February 1994 to 17 November 19941995: 12 January 1995 to 11 November 19951996: 31 January 1996 to 12 December 19961997: 4 January 1997 to 25 October 19971998: 6 January 1998 to 10 November 19981999: 21 January 1999 to 29 October 19992000: 13 February 2000 to 11 December 20002001: 14 February 2001 to 7 December 20012002: 23 January 2002 to 3 October 20022003: 1 January 2003 to 8 December 20032004: 4 February 2004 to 28 November 20042005: 12 January 2005 to 9 October 20052006: 2 February 2006 to 28 November 200619481956196519731981199019982006JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Hamilton meeting 10 mm (0.39 in).
First to last qualifying date each year at Hamilton
YearFirst dateLast date
19481948-02-221948-12-23
19491949-01-041949-12-20
19501950-01-121950-12-01
19511951-02-121951-12-31
19521952-01-221952-08-29
19531953-01-151953-12-08
19541954-01-251954-10-13
19551955-02-181955-12-30
19561956-01-161956-11-11
19581958-02-251958-11-27
19591959-03-271959-10-28
19601960-02-031960-11-15
19611961-03-071961-09-23
19621962-01-211962-12-24
19631963-03-291963-11-16
19641964-01-181964-12-28
19651965-05-151965-12-11
19661966-03-221966-12-07
19671967-02-151967-12-20
19681968-02-211968-11-16
19691969-01-231969-12-26
19701970-01-281970-11-25
19711971-02-031971-12-25
19721972-02-241972-12-29
19731973-03-031973-12-18
19741974-01-061974-12-29
19751975-01-071975-12-31
19761976-02-201976-10-03
19771977-03-281977-12-16
19781978-01-181978-12-30
19791979-03-211979-12-11
19801980-01-151980-09-11
19811981-03-071981-12-30
19821982-01-011982-12-24
19831983-02-151983-12-27
19841984-02-151984-12-21
19851985-01-091985-12-01
19861986-01-071986-12-07
19871987-02-141987-12-23
19891989-02-041989-11-26
19901990-02-071990-12-29
19911991-04-261991-10-24
19921992-02-141992-12-31
19931993-03-111993-11-24
19941994-02-191994-11-17
19951995-01-121995-11-11
19961996-01-311996-12-12
19971997-01-041997-10-25
19981998-01-061998-11-10
19991999-01-211999-10-29
20002000-02-132000-12-11
20012001-02-142001-12-07
20022002-01-232002-10-03
20032003-01-012003-12-08
20042004-02-042004-11-28
20052005-01-122005-10-09
20062006-02-022006-11-28

Every Fixed Threshold

Fixed thresholds at Hamilton
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain5727198315
25 mm (0.98 in): Days with 25 mm or more rain32619971
50 mm (1.97 in): Days with 50 mm or more rain5119501
10 cm (3.9 in): Days with 10 cm or more snowfall272119481
25 cm (9.8 in): Days with 25 cm or more snowfall11319622
50 cm (19.7 in): Days with 50 cm or more snowfall1119511

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1948.

Download the Data

  • Data for Hamilton 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).