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Built 2026-10-19 (19 October 2026)

Gnowanallup Threshold Days by Year (ASN00010523)

4 fixed thresholds counted per year at Gnowanallup (ASN00010523): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Gnowanallup Thresholds

  • Gnowanallup: days with 10 mm (0.39 in) or more of precipitation in 49 years, most in 1955 with 20.
  • Gnowanallup: days with 25 mm (0.98 in) or more of precipitation in 35 years, most in 1955 with 5.
  • Gnowanallup: days with 50 mm (1.97 in) or more of precipitation in 7 years, most in 1955 with 3.
  • Gnowanallup: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1934 with 1.
  • 4 fixed thresholds have at least one qualifying day at Gnowanallup.
49 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Gnowanallup Days per year at Gnowanallup with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1955. 051015201922: 101923: 81924: 131925: 71926: 171927: 71928: 121929: 81930: 111931: 41932: 101933: 81934: 81935: 111936: 91937: 121938: 81939: 171940: 51941: 51942: 101943: 121944: 61945: 71946: 111947: 121948: 61949: 91950: 41951: 101952: 111953: 101954: 41955: 201956: 41957: 31958: 121959: 121960: 141961: 111965: 121966: 181967: 81968: 151969: 81970: 111971: 121972: 61973: 81922192719321937194219471952195719651970
Days per year at Gnowanallup with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1955.
Days with 10 mm (0.39 in) or more of precipitation per year at Gnowanallup
YearDaysDecade average
19221010.3
1923810.3
19241310.3
1925710.3
19261710.3
1927710.3
19281210.3
1929810.3
1930119.8
193149.8
1932109.8
193389.8
193489.8
1935119.8
193699.8
1937129.8
193889.8
1939179.8
194058.3
194158.3
1942108.3
1943128.3
194468.3
194578.3
1946118.3
1947128.3
194868.3
194998.3
195049
1951109
1952119
1953109
195449
1955209
195649
195739
1958129
1959129
19601412.3
19611112.3
19651212.3
19661812.3
1967812.3
19681512.3
1969812.3
1970119.3
1971129.3
197269.3
197389.3
First to last qualifying date each year at Gnowanallup For each year, a bar from the first to the last day at Gnowanallup meeting 10 mm (0.39 in). 1922: 2 March 1922 to 28 November 19221923: 26 March 1923 to 8 September 19231924: 11 February 1924 to 10 November 19241925: 16 February 1925 to 10 December 19251926: 5 February 1926 to 13 December 19261927: 13 March 1927 to 15 December 19271928: 9 January 1928 to 29 September 19281929: 10 May 1929 to 6 November 19291930: 26 March 1930 to 30 September 19301931: 9 May 1931 to 5 September 19311932: 6 April 1932 to 23 October 19321933: 16 January 1933 to 16 October 19331934: 7 March 1934 to 11 September 19341935: 22 February 1935 to 22 October 19351936: 11 January 1936 to 30 September 19361937: 3 March 1937 to 24 November 19371938: 14 March 1938 to 4 December 19381939: 21 January 1939 to 1 November 19391940: 26 June 1940 to 3 December 19401941: 5 May 1941 to 13 December 19411942: 19 March 1942 to 4 December 19421943: 31 January 1943 to 19 September 19431944: 18 May 1944 to 4 December 19441945: 10 June 1945 to 22 August 19451946: 14 May 1946 to 15 November 19461947: 17 February 1947 to 26 October 19471948: 5 June 1948 to 15 November 19481949: 10 May 1949 to 7 November 19491950: 9 May 1950 to 13 September 19501951: 2 January 1951 to 4 December 19511952: 2 May 1952 to 18 December 19521953: 8 May 1953 to 11 October 19531954: 23 May 1954 to 30 July 19541955: 6 February 1955 to 10 December 19551956: 13 May 1956 to 9 June 19561957: 15 May 1957 to 9 June 19571958: 22 May 1958 to 22 December 19581959: 1 June 1959 to 31 December 19591960: 1 January 1960 to 17 December 19601961: 25 January 1961 to 3 September 19611965: 27 May 1965 to 21 October 19651966: 2 January 1966 to 23 October 19661967: 9 May 1967 to 22 December 19671968: 27 January 1968 to 10 September 19681969: 20 March 1969 to 4 November 19691970: 17 February 1970 to 4 October 19701971: 31 January 1971 to 23 November 19711972: 31 May 1972 to 17 August 19721973: 8 January 1973 to 14 November 19731922192919361943195019571967JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Gnowanallup meeting 10 mm (0.39 in).
First to last qualifying date each year at Gnowanallup
YearFirst dateLast date
19221922-03-021922-11-28
19231923-03-261923-09-08
19241924-02-111924-11-10
19251925-02-161925-12-10
19261926-02-051926-12-13
19271927-03-131927-12-15
19281928-01-091928-09-29
19291929-05-101929-11-06
19301930-03-261930-09-30
19311931-05-091931-09-05
19321932-04-061932-10-23
19331933-01-161933-10-16
19341934-03-071934-09-11
19351935-02-221935-10-22
19361936-01-111936-09-30
19371937-03-031937-11-24
19381938-03-141938-12-04
19391939-01-211939-11-01
19401940-06-261940-12-03
19411941-05-051941-12-13
19421942-03-191942-12-04
19431943-01-311943-09-19
19441944-05-181944-12-04
19451945-06-101945-08-22
19461946-05-141946-11-15
19471947-02-171947-10-26
19481948-06-051948-11-15
19491949-05-101949-11-07
19501950-05-091950-09-13
19511951-01-021951-12-04
19521952-05-021952-12-18
19531953-05-081953-10-11
19541954-05-231954-07-30
19551955-02-061955-12-10
19561956-05-131956-06-09
19571957-05-151957-06-09
19581958-05-221958-12-22
19591959-06-011959-12-31
19601960-01-011960-12-17
19611961-01-251961-09-03
19651965-05-271965-10-21
19661966-01-021966-10-23
19671967-05-091967-12-22
19681968-01-271968-09-10
19691969-03-201969-11-04
19701970-02-171970-10-04
19711971-01-311971-11-23
19721972-05-311972-08-17
19731973-01-081973-11-14

Every Fixed Threshold

Fixed thresholds at Gnowanallup
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain492019558
25 mm (0.98 in): Days with 25 mm or more rain35519551
50 mm (1.97 in): Days with 50 mm or more rain7319551
100 mm (3.94 in): Days with 100 mm or more rain2119341

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1922.

Download the Data

  • Data for Gnowanallup 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).