Daily records
Page built 2026-10-17
Data as of 2025-12-31
Search
Built 2026-10-17 (17 October 2026)

Boronia 1 Threshold Days by Year

4 fixed thresholds counted per year at Boronia 1 (ASN00086010): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Boronia 1 Thresholds

  • Boronia 1: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1952 with 45.
  • Boronia 1: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 1952 with 10.
  • Boronia 1: days with 50 mm (1.97 in) or more of precipitation in 23 years, most in 1937 with 2.
  • Boronia 1: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1946 with 1.
  • 4 fixed thresholds have at least one qualifying day at Boronia 1.
41 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Boronia 1 Days per year at Boronia 1 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 1952. 02040601935: 301936: 291937: 211938: 171939: 371940: 251941: 301942: 331943: 241944: 281945: 171946: 251947: 321948: 261949: 291950: 291951: 331952: 451953: 281954: 241955: 381956: 391957: 251958: 351959: 271960: 311961: 281962: 301963: 221964: 291965: 271966: 231967: 211968: 221969: 291970: 341971: 341972: 211973: 361974: 331975: 32193519401945195019551960196519701975
Days per year at Boronia 1 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 1952.
Days with 10 mm (0.39 in) or more of precipitation per year at Boronia 1
YearDaysDecade average
19353026.8
19362926.8
19372126.8
19381726.8
19393726.8
19402526.9
19413026.9
19423326.9
19432426.9
19442826.9
19451726.9
19462526.9
19473226.9
19482626.9
19492926.9
19502932.3
19513332.3
19524532.3
19532832.3
19542432.3
19553832.3
19563932.3
19572532.3
19583532.3
19592732.3
19603126.2
19612826.2
19623026.2
19632226.2
19642926.2
19652726.2
19662326.2
19672126.2
19682226.2
19692926.2
19703431.7
19713431.7
19722131.7
19733631.7
19743331.7
19753231.7
First to last qualifying date each year at Boronia 1 For each year, a bar from the first to the last day at Boronia 1 meeting 10 mm (0.39 in). 1935: 5 January 1935 to 21 December 19351936: 4 January 1936 to 20 December 19361937: 3 January 1937 to 2 December 19371938: 15 January 1938 to 31 October 19381939: 3 February 1939 to 1 December 19391940: 6 January 1940 to 20 December 19401941: 2 January 1941 to 5 December 19411942: 20 January 1942 to 19 December 19421943: 3 January 1943 to 13 December 19431944: 5 January 1944 to 23 December 19441945: 2 January 1945 to 27 December 19451946: 17 January 1946 to 29 December 19461947: 4 February 1947 to 23 December 19471948: 6 January 1948 to 28 December 19481949: 16 January 1949 to 21 December 19491950: 10 January 1950 to 28 December 19501951: 7 January 1951 to 19 December 19511952: 5 January 1952 to 27 December 19521953: 15 January 1953 to 7 December 19531954: 1 February 1954 to 12 December 19541955: 29 January 1955 to 31 December 19551956: 5 January 1956 to 27 December 19561957: 16 February 1957 to 29 December 19571958: 1 February 1958 to 17 December 19581959: 26 January 1959 to 24 December 19591960: 9 January 1960 to 22 November 19601961: 2 January 1961 to 19 December 19611962: 17 January 1962 to 24 December 19621963: 14 January 1963 to 6 December 19631964: 11 February 1964 to 27 December 19641965: 19 January 1965 to 8 December 19651966: 13 January 1966 to 16 December 19661967: 13 January 1967 to 30 December 19671968: 21 January 1968 to 26 December 19681969: 15 January 1969 to 3 December 19691970: 2 January 1970 to 31 December 19701971: 2 January 1971 to 23 December 19711972: 1 January 1972 to 3 November 19721973: 13 January 1973 to 16 December 19731974: 4 January 1974 to 28 December 19741975: 15 March 1975 to 19 December 19751935194119471953195919651971JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Boronia 1 meeting 10 mm (0.39 in).
First to last qualifying date each year at Boronia 1
YearFirst dateLast date
19351935-01-051935-12-21
19361936-01-041936-12-20
19371937-01-031937-12-02
19381938-01-151938-10-31
19391939-02-031939-12-01
19401940-01-061940-12-20
19411941-01-021941-12-05
19421942-01-201942-12-19
19431943-01-031943-12-13
19441944-01-051944-12-23
19451945-01-021945-12-27
19461946-01-171946-12-29
19471947-02-041947-12-23
19481948-01-061948-12-28
19491949-01-161949-12-21
19501950-01-101950-12-28
19511951-01-071951-12-19
19521952-01-051952-12-27
19531953-01-151953-12-07
19541954-02-011954-12-12
19551955-01-291955-12-31
19561956-01-051956-12-27
19571957-02-161957-12-29
19581958-02-011958-12-17
19591959-01-261959-12-24
19601960-01-091960-11-22
19611961-01-021961-12-19
19621962-01-171962-12-24
19631963-01-141963-12-06
19641964-02-111964-12-27
19651965-01-191965-12-08
19661966-01-131966-12-16
19671967-01-131967-12-30
19681968-01-211968-12-26
19691969-01-151969-12-03
19701970-01-021970-12-31
19711971-01-021971-12-23
19721972-01-011972-11-03
19731973-01-131973-12-16
19741974-01-041974-12-28
19751975-03-151975-12-19

Every Fixed Threshold

Fixed thresholds at Boronia 1
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4145195232
25 mm (0.98 in): Days with 25 mm or more rain411019524
50 mm (1.97 in): Days with 50 mm or more rain23219372
100 mm (3.94 in): Days with 100 mm or more rain1119461

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1935.

Download the Data

  • Data for Boronia 1 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

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