Built 2026-10-18 (18 October 2026)

Williambury Threshold Days by Year

5 fixed thresholds counted per year at Williambury (ASN00006052): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Williambury Thresholds

  • Williambury: days with 10 mm (0.39 in) or more of precipitation in 99 years, most in 2000 with 17.
  • Williambury: days with 25 mm (0.98 in) or more of precipitation in 77 years, most in 1999 with 10.
  • Williambury: days with 50 mm (1.97 in) or more of precipitation in 45 years, most in 1954 with 3.
  • Williambury: days with 100 mm (3.94 in) or more of precipitation in 7 years, most in 2000 with 2.
  • 5 fixed thresholds have at least one qualifying day at Williambury.
99 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Williambury Days per year at Williambury with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 17 in 2000. 051015201907: 51908: 41909: 91910: 61911: 51912: 51913: 11915: 51916: 121917: 51918: 101919: 51921: 141922: 21923: 71924: 41925: 41926: 61927: 71928: 31930: 31931: 121932: 71933: 101934: 111935: 51936: 11937: 81939: 21940: 41941: 61942: 71943: 71944: 11945: 51946: 81947: 61948: 141949: 121950: 21951: 31952: 51953: 51954: 61955: 41956: 41957: 71958: 21959: 11960: 91961: 91962: 61963: 131964: 61965: 111966: 11967: 71968: 81969: 61970: 81971: 101972: 31973: 91974: 111975: 121976: 11977: 21978: 51980: 101981: 71982: 21983: 61984: 81985: 21986: 111987: 41988: 61989: 81990: 91991: 61992: 81993: 61994: 51995: 121996: 81997: 111999: 142000: 172001: 42002: 62003: 22004: 102005: 122021: 112022: 92023: 52024: 72025: 62026: 51907191819301941195119611971198219922003
Days per year at Williambury with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 17 in 2000.
Days with 10 mm (0.39 in) or more of precipitation per year at Williambury
YearDaysDecade average
190756
190846
190996
191066
191156
191256
191316
191556
1916126
191756
1918106
191956
1921145.9
192225.9
192375.9
192445.9
192545.9
192665.9
192775.9
192835.9
193036.6
1931126.6
193276.6
1933106.6
1934116.6
193556.6
193616.6
193786.6
193926.6
194047
194167
194277
194377
194417
194557
194687
194767
1948147
1949127
195023.9
195133.9
195253.9
195353.9
195463.9
195543.9
195643.9
195773.9
195823.9
195913.9
196097.6
196197.6
196267.6
1963137.6
196467.6
1965117.6
196617.6
196777.6
196887.6
196967.6
197086.8
1971106.8
197236.8
197396.8
1974116.8
1975126.8
197616.8
197726.8
197856.8
1980106.4
198176.4
198226.4
198366.4
198486.4
198526.4
1986116.4
198746.4
198866.4
198986.4
199098.8
199168.8
199288.8
199368.8
199458.8
1995128.8
199688.8
1997118.8
1999148.8
2000178.5
200148.5
200268.5
200328.5
2004108.5
2005128.5
2021117.2
202297.2
202357.2
202477.2
202567.2
202657.2
First to last qualifying date each year at Williambury For each year, a bar from the first to the last day at Williambury meeting 10 mm (0.39 in). 1907: 13 January 1907 to 30 July 19071908: 15 February 1908 to 27 June 19081909: 7 January 1909 to 3 December 19091910: 5 March 1910 to 20 July 19101911: 14 January 1911 to 24 May 19111912: 21 January 1912 to 30 July 19121913: 23 July 1913 to 23 July 19131915: 25 February 1915 to 26 June 19151916: 13 February 1916 to 19 October 19161917: 14 January 1917 to 18 March 19171918: 15 January 1918 to 17 June 19181919: 26 January 1919 to 19 August 19191921: 6 February 1921 to 29 December 19211922: 20 March 1922 to 29 May 19221923: 17 January 1923 to 27 July 19231924: 3 April 1924 to 22 July 19241925: 23 January 1925 to 21 June 19251926: 4 February 1926 to 25 December 19261927: 20 March 1927 to 28 July 19271928: 28 January 1928 to 14 June 19281930: 24 January 1930 to 21 October 19301931: 26 January 1931 to 13 October 19311932: 17 January 1932 to 17 December 19321933: 4 March 1933 to 23 December 19331934: 2 January 1934 to 18 June 19341935: 15 January 1935 to 30 March 19351936: 17 December 1936 to 17 December 19361937: 8 February 1937 to 18 May 19371939: 20 February 1939 to 4 May 19391940: 19 January 1940 to 27 July 19401941: 6 March 1941 to 27 August 19411942: 4 February 1942 to 10 June 19421943: 15 January 1943 to 27 July 19431944: 4 April 1944 to 4 April 19441945: 3 February 1945 to 22 June 19451946: 1 February 1946 to 10 July 19461947: 23 February 1947 to 25 October 19471948: 17 January 1948 to 21 December 19481949: 12 February 1949 to 8 December 19491950: 26 May 1950 to 23 June 19501951: 6 June 1951 to 8 June 19511952: 27 February 1952 to 10 July 19521953: 6 January 1953 to 24 May 19531954: 30 January 1954 to 25 November 19541955: 12 January 1955 to 18 May 19551956: 11 February 1956 to 1 July 19561957: 27 January 1957 to 6 June 19571958: 16 March 1958 to 23 May 19581959: 25 July 1959 to 25 July 19591960: 27 January 1960 to 22 July 19601961: 11 February 1961 to 30 August 19611962: 26 January 1962 to 29 May 19621963: 9 January 1963 to 23 December 19631964: 19 February 1964 to 16 June 19641965: 12 January 1965 to 27 November 19651966: 3 April 1966 to 3 April 19661967: 21 January 1967 to 17 May 19671968: 29 January 1968 to 19 June 19681969: 20 February 1969 to 14 June 19691970: 2 February 1970 to 30 May 19701971: 26 January 1971 to 16 August 19711972: 31 May 1972 to 3 July 19721973: 13 January 1973 to 5 December 19731974: 15 January 1974 to 13 August 19741975: 20 February 1975 to 2 November 19751976: 7 March 1976 to 7 March 19761977: 5 January 1977 to 7 December 19771978: 22 April 1978 to 13 December 19781980: 22 January 1980 to 18 July 19801981: 7 February 1981 to 7 June 19811982: 19 January 1982 to 25 May 19821983: 4 January 1983 to 20 August 19831984: 2 March 1984 to 20 December 19841985: 28 February 1985 to 25 July 19851986: 19 February 1986 to 31 July 19861987: 18 May 1987 to 28 July 19871988: 6 February 1988 to 23 July 19881989: 24 April 1989 to 7 November 19891990: 15 January 1990 to 7 August 19901991: 24 February 1991 to 20 July 19911992: 27 April 1992 to 10 August 19921993: 4 February 1993 to 13 November 19931994: 21 February 1994 to 25 December 19941995: 7 February 1995 to 21 November 19951996: 18 April 1996 to 21 October 19961997: 19 January 1997 to 30 August 19971999: 16 January 1999 to 29 May 19992000: 2 January 2000 to 16 December 20002001: 19 January 2001 to 11 February 20012002: 11 January 2002 to 15 December 20022003: 26 June 2003 to 24 December 20032004: 5 January 2004 to 24 July 20042005: 13 February 2005 to 17 August 20052021: 3 February 2021 to 22 November 20212022: 19 January 2022 to 3 September 20222023: 16 January 2023 to 27 February 20232024: 14 May 2024 to 24 December 20242025: 19 January 2025 to 24 August 20252026: 10 February 2026 to 29 September 202619071922193619501963197619902004JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Williambury meeting 10 mm (0.39 in).
First to last qualifying date each year at Williambury
YearFirst dateLast date
19071907-01-131907-07-30
19081908-02-151908-06-27
19091909-01-071909-12-03
19101910-03-051910-07-20
19111911-01-141911-05-24
19121912-01-211912-07-30
19131913-07-231913-07-23
19151915-02-251915-06-26
19161916-02-131916-10-19
19171917-01-141917-03-18
19181918-01-151918-06-17
19191919-01-261919-08-19
19211921-02-061921-12-29
19221922-03-201922-05-29
19231923-01-171923-07-27
19241924-04-031924-07-22
19251925-01-231925-06-21
19261926-02-041926-12-25
19271927-03-201927-07-28
19281928-01-281928-06-14
19301930-01-241930-10-21
19311931-01-261931-10-13
19321932-01-171932-12-17
19331933-03-041933-12-23
19341934-01-021934-06-18
19351935-01-151935-03-30
19361936-12-171936-12-17
19371937-02-081937-05-18
19391939-02-201939-05-04
19401940-01-191940-07-27
19411941-03-061941-08-27
19421942-02-041942-06-10
19431943-01-151943-07-27
19441944-04-041944-04-04
19451945-02-031945-06-22
19461946-02-011946-07-10
19471947-02-231947-10-25
19481948-01-171948-12-21
19491949-02-121949-12-08
19501950-05-261950-06-23
19511951-06-061951-06-08
19521952-02-271952-07-10
19531953-01-061953-05-24
19541954-01-301954-11-25
19551955-01-121955-05-18
19561956-02-111956-07-01
19571957-01-271957-06-06
19581958-03-161958-05-23
19591959-07-251959-07-25
19601960-01-271960-07-22
19611961-02-111961-08-30
19621962-01-261962-05-29
19631963-01-091963-12-23
19641964-02-191964-06-16
19651965-01-121965-11-27
19661966-04-031966-04-03
19671967-01-211967-05-17
19681968-01-291968-06-19
19691969-02-201969-06-14
19701970-02-021970-05-30
19711971-01-261971-08-16
19721972-05-311972-07-03
19731973-01-131973-12-05
19741974-01-151974-08-13
19751975-02-201975-11-02
19761976-03-071976-03-07
19771977-01-051977-12-07
19781978-04-221978-12-13
19801980-01-221980-07-18
19811981-02-071981-06-07
19821982-01-191982-05-25
19831983-01-041983-08-20
19841984-03-021984-12-20
19851985-02-281985-07-25
19861986-02-191986-07-31
19871987-05-181987-07-28
19881988-02-061988-07-23
19891989-04-241989-11-07
19901990-01-151990-08-07
19911991-02-241991-07-20
19921992-04-271992-08-10
19931993-02-041993-11-13
19941994-02-211994-12-25
19951995-02-071995-11-21
19961996-04-181996-10-21
19971997-01-191997-08-30
19991999-01-161999-05-29
20002000-01-022000-12-16
20012001-01-192001-02-11
20022002-01-112002-12-15
20032003-06-262003-12-24
20042004-01-052004-07-24
20052005-02-132005-08-17
20212021-02-032021-11-22
20222022-01-192022-09-03
20232023-01-162023-02-27
20242024-05-142024-12-24
20252025-01-192025-08-24
20262026-02-102026-09-29

Every Fixed Threshold

Fixed thresholds at Williambury
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain991720005
25 mm (0.98 in): Days with 25 mm or more rain771019992
50 mm (1.97 in): Days with 50 mm or more rain45319541
100 mm (3.94 in): Days with 100 mm or more rain7220001
200 mm (7.87 in): Days with 200 mm or more rain2120001

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1907.

Download the Data

  • Data for Williambury 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).