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Built 2026-10-19 (19 October 2026)

Alroy Downs Threshold Days by Year (ASN00015036)

4 fixed thresholds counted per year at Alroy Downs (ASN00015036): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Alroy Downs Thresholds

  • Alroy Downs: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 2000 with 35.
  • Alroy Downs: days with 25 mm (0.98 in) or more of precipitation in 50 years, most in 2000 with 16.
  • Alroy Downs: days with 50 mm (1.97 in) or more of precipitation in 33 years, most in 1976 with 7.
  • Alroy Downs: days with 100 mm (3.94 in) or more of precipitation in 6 years, most in 1976 with 2.
  • 4 fixed thresholds have at least one qualifying day at Alroy Downs.
52 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Alroy Downs Days per year at Alroy Downs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 2000. 0102030401951: 91952: 41953: 81954: 101955: 131956: 151957: 101958: 21959: 91960: 101961: 31962: 131963: 81964: 71965: 121966: 141967: 111968: 141969: 101970: 41971: 141972: 81973: 191974: 321975: 191976: 191977: 231978: 161979: 101980: 121981: 121982: 121983: 91984: 191985: 71986: 91987: 131988: 51989: 61990: 91991: 121992: 61993: 181994: 61995: 101996: 131998: 151999: 122000: 352001: 122002: 122003: 16195119571963196919751981198719932000
Days per year at Alroy Downs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 2000.
Days with 10 mm (0.39 in) or more of precipitation per year at Alroy Downs
YearDaysDecade average
195198.9
195248.9
195388.9
1954108.9
1955138.9
1956158.9
1957108.9
195828.9
195998.9
19601010.2
1961310.2
19621310.2
1963810.2
1964710.2
19651210.2
19661410.2
19671110.2
19681410.2
19691010.2
1970416.4
19711416.4
1972816.4
19731916.4
19743216.4
19751916.4
19761916.4
19772316.4
19781616.4
19791016.4
19801210.4
19811210.4
19821210.4
1983910.4
19841910.4
1985710.4
1986910.4
19871310.4
1988510.4
1989610.4
1990911.2
19911211.2
1992611.2
19931811.2
1994611.2
19951011.2
19961311.2
19981511.2
19991211.2
20003518.8
20011218.8
20021218.8
20031618.8
First to last qualifying date each year at Alroy Downs For each year, a bar from the first to the last day at Alroy Downs meeting 10 mm (0.39 in). 1951: 5 January 1951 to 12 February 19511952: 24 January 1952 to 28 December 19521953: 9 January 1953 to 8 December 19531954: 1 January 1954 to 13 December 19541955: 3 January 1955 to 26 October 19551956: 10 February 1956 to 20 December 19561957: 7 January 1957 to 30 December 19571958: 21 May 1958 to 30 November 19581959: 9 January 1959 to 22 May 19591960: 11 February 1960 to 25 December 19601961: 30 January 1961 to 22 July 19611962: 13 January 1962 to 29 December 19621963: 14 January 1963 to 4 November 19631964: 6 January 1964 to 12 November 19641965: 1 March 1965 to 22 December 19651966: 14 January 1966 to 13 December 19661967: 4 February 1967 to 3 December 19671968: 19 January 1968 to 23 December 19681969: 9 January 1969 to 23 December 19691970: 8 February 1970 to 10 November 19701971: 7 February 1971 to 12 December 19711972: 17 February 1972 to 7 November 19721973: 11 January 1973 to 30 December 19731974: 6 January 1974 to 28 December 19741975: 11 January 1975 to 17 December 19751976: 3 January 1976 to 8 December 19761977: 15 January 1977 to 20 December 19771978: 7 January 1978 to 24 December 19781979: 15 January 1979 to 31 December 19791980: 11 January 1980 to 15 December 19801981: 14 January 1981 to 1 December 19811982: 8 January 1982 to 25 December 19821983: 8 January 1983 to 4 December 19831984: 8 January 1984 to 20 December 19841985: 4 February 1985 to 27 December 19851986: 15 January 1986 to 6 December 19861987: 9 January 1987 to 25 December 19871988: 6 February 1988 to 26 December 19881989: 12 March 1989 to 1 December 19891990: 9 January 1990 to 9 December 19901991: 17 January 1991 to 10 December 19911992: 13 February 1992 to 17 December 19921993: 4 January 1993 to 24 December 19931994: 13 January 1994 to 24 December 19941995: 16 January 1995 to 21 November 19951996: 7 February 1996 to 18 December 19961998: 12 January 1998 to 17 December 19981999: 2 January 1999 to 18 December 19992000: 21 January 2000 to 26 December 20002001: 29 January 2001 to 31 December 20012002: 6 January 2002 to 27 February 20022003: 1 January 2003 to 31 December 200319511958196519721979198619932001JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Alroy Downs meeting 10 mm (0.39 in).
First to last qualifying date each year at Alroy Downs
YearFirst dateLast date
19511951-01-051951-02-12
19521952-01-241952-12-28
19531953-01-091953-12-08
19541954-01-011954-12-13
19551955-01-031955-10-26
19561956-02-101956-12-20
19571957-01-071957-12-30
19581958-05-211958-11-30
19591959-01-091959-05-22
19601960-02-111960-12-25
19611961-01-301961-07-22
19621962-01-131962-12-29
19631963-01-141963-11-04
19641964-01-061964-11-12
19651965-03-011965-12-22
19661966-01-141966-12-13
19671967-02-041967-12-03
19681968-01-191968-12-23
19691969-01-091969-12-23
19701970-02-081970-11-10
19711971-02-071971-12-12
19721972-02-171972-11-07
19731973-01-111973-12-30
19741974-01-061974-12-28
19751975-01-111975-12-17
19761976-01-031976-12-08
19771977-01-151977-12-20
19781978-01-071978-12-24
19791979-01-151979-12-31
19801980-01-111980-12-15
19811981-01-141981-12-01
19821982-01-081982-12-25
19831983-01-081983-12-04
19841984-01-081984-12-20
19851985-02-041985-12-27
19861986-01-151986-12-06
19871987-01-091987-12-25
19881988-02-061988-12-26
19891989-03-121989-12-01
19901990-01-091990-12-09
19911991-01-171991-12-10
19921992-02-131992-12-17
19931993-01-041993-12-24
19941994-01-131994-12-24
19951995-01-161995-11-21
19961996-02-071996-12-18
19981998-01-121998-12-17
19991999-01-021999-12-18
20002000-01-212000-12-26
20012001-01-292001-12-31
20022002-01-062002-02-27
20032003-01-012003-12-31

Every Fixed Threshold

Fixed thresholds at Alroy Downs
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain5235200016
25 mm (0.98 in): Days with 25 mm or more rain501620002
50 mm (1.97 in): Days with 50 mm or more rain33719761
100 mm (3.94 in): Days with 100 mm or more rain6219761

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1951.

Download the Data

  • Data for Alroy Downs 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).