Built 2026-10-18 (18 October 2026)

Porongorup Threshold Days by Year

4 fixed thresholds counted per year at Porongorup (ASN00009680): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Porongorup Thresholds

  • Porongorup: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 1917 with 32.
  • Porongorup: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1978 with 8.
  • Porongorup: days with 50 mm (1.97 in) or more of precipitation in 11 years, most in 1917 with 1.
  • Porongorup: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1929 with 1.
  • 4 fixed thresholds have at least one qualifying day at Porongorup.
33 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Porongorup Days per year at Porongorup with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 32 in 1917. 0102030401914: 291915: 251916: 211917: 321921: 201922: 211923: 271924: 211926: 291927: 181928: 251929: 231930: 191931: 241932: 281964: 211965: 181966: 211967: 211968: 261969: 191970: 201971: 231972: 201973: 241974: 151975: 221976: 251977: 181978: 291979: 241980: 221981: 14191419211926193019651969197319771981
Days per year at Porongorup with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 32 in 1917.
Days with 10 mm (0.39 in) or more of precipitation per year at Porongorup
YearDaysDecade average
19142926.8
19152526.8
19162126.8
19173226.8
19212023
19222123
19232723
19242123
19262923
19271823
19282523
19292323
19301923.7
19312423.7
19322823.7
19642121
19651821
19662121
19672121
19682621
19691921
19702022
19712322
19722022
19732422
19741522
19752222
19762522
19771822
19782922
19792422
19802218
19811418
First to last qualifying date each year at Porongorup For each year, a bar from the first to the last day at Porongorup meeting 10 mm (0.39 in). 1914: 12 February 1914 to 12 December 19141915: 16 January 1915 to 21 October 19151916: 14 February 1916 to 27 November 19161917: 29 January 1917 to 10 October 19171921: 19 February 1921 to 8 December 19211922: 23 February 1922 to 28 November 19221923: 20 January 1923 to 7 October 19231924: 19 February 1924 to 27 October 19241926: 5 February 1926 to 15 December 19261927: 10 January 1927 to 30 October 19271928: 9 January 1928 to 7 October 19281929: 15 February 1929 to 24 December 19291930: 7 March 1930 to 13 December 19301931: 6 March 1931 to 19 December 19311932: 30 March 1932 to 19 December 19321964: 30 January 1964 to 20 December 19641965: 2 March 1965 to 20 December 19651966: 12 April 1966 to 10 December 19661967: 2 February 1967 to 24 December 19671968: 27 January 1968 to 1 December 19681969: 3 February 1969 to 4 November 19691970: 5 February 1970 to 4 December 19701971: 8 January 1971 to 8 December 19711972: 6 January 1972 to 3 December 19721973: 10 April 1973 to 1 December 19731974: 10 February 1974 to 19 November 19741975: 2 April 1975 to 18 October 19751976: 7 January 1976 to 28 November 19761977: 27 April 1977 to 23 December 19771978: 2 January 1978 to 15 December 19781979: 27 February 1979 to 14 November 19791980: 11 February 1980 to 1 December 19801981: 7 April 1981 to 7 November 19811914192219281964196919741979JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Porongorup meeting 10 mm (0.39 in).
First to last qualifying date each year at Porongorup
YearFirst dateLast date
19141914-02-121914-12-12
19151915-01-161915-10-21
19161916-02-141916-11-27
19171917-01-291917-10-10
19211921-02-191921-12-08
19221922-02-231922-11-28
19231923-01-201923-10-07
19241924-02-191924-10-27
19261926-02-051926-12-15
19271927-01-101927-10-30
19281928-01-091928-10-07
19291929-02-151929-12-24
19301930-03-071930-12-13
19311931-03-061931-12-19
19321932-03-301932-12-19
19641964-01-301964-12-20
19651965-03-021965-12-20
19661966-04-121966-12-10
19671967-02-021967-12-24
19681968-01-271968-12-01
19691969-02-031969-11-04
19701970-02-051970-12-04
19711971-01-081971-12-08
19721972-01-061972-12-03
19731973-04-101973-12-01
19741974-02-101974-11-19
19751975-04-021975-10-18
19761976-01-071976-11-28
19771977-04-271977-12-23
19781978-01-021978-12-15
19791979-02-271979-11-14
19801980-02-111980-12-01
19811981-04-071981-11-07

Every Fixed Threshold

Fixed thresholds at Porongorup
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3332191714
25 mm (0.98 in): Days with 25 mm or more rain31819785
50 mm (1.97 in): Days with 50 mm or more rain11119171
100 mm (3.94 in): Days with 100 mm or more rain1119291

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1914.

Download the Data

  • Data for Porongorup 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

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