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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Marrangaroo (Glenroy) Threshold Days by Year (ASN00063051)

4 fixed thresholds counted per year at Marrangaroo (Glenroy) (ASN00063051): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Marrangaroo (Glenroy) Thresholds

  • Marrangaroo (Glenroy): days with 10 mm (0.39 in) or more of precipitation in 19 years, most in 1973 with 38.
  • Marrangaroo (Glenroy): days with 25 mm (0.98 in) or more of precipitation in 19 years, most in 1963 with 12.
  • Marrangaroo (Glenroy): days with 50 mm (1.97 in) or more of precipitation in 14 years, most in 1964 with 5.
  • Marrangaroo (Glenroy): days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1967 with 1.
  • 4 fixed thresholds have at least one qualifying day at Marrangaroo (Glenroy).
19 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Marrangaroo (Glenroy) Days per year at Marrangaroo (Glenroy) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 38 in 1973. 0102030401962: 251963: 361964: 241965: 151966: 261967: 211968: 221969: 251970: 241972: 291973: 381974: 251975: 211976: 301977: 151979: 121980: 171981: 271982: 111962196419661968197019731975197719801982
Days per year at Marrangaroo (Glenroy) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 38 in 1973.
Days with 10 mm (0.39 in) or more of precipitation per year at Marrangaroo (Glenroy)
YearDaysDecade average
19622524.3
19633624.3
19642424.3
19651524.3
19662624.3
19672124.3
19682224.3
19692524.3
19702424.3
19722924.3
19733824.3
19742524.3
19752124.3
19763024.3
19771524.3
19791224.3
19801718.3
19812718.3
19821118.3
First to last qualifying date each year at Marrangaroo (Glenroy) For each year, a bar from the first to the last day at Marrangaroo (Glenroy) meeting 10 mm (0.39 in). 1962: 5 January 1962 to 21 December 19621963: 3 January 1963 to 30 December 19631964: 14 January 1964 to 13 November 19641965: 13 April 1965 to 6 December 19651966: 17 January 1966 to 24 December 19661967: 25 January 1967 to 30 December 19671968: 5 January 1968 to 25 December 19681969: 14 January 1969 to 13 December 19691970: 2 January 1970 to 29 December 19701972: 13 January 1972 to 27 December 19721973: 27 January 1973 to 28 December 19731974: 7 January 1974 to 2 November 19741975: 18 January 1975 to 31 December 19751976: 13 January 1976 to 24 December 19761977: 16 January 1977 to 2 September 19771979: 4 March 1979 to 8 December 19791980: 7 January 1980 to 14 December 19801981: 6 January 1981 to 28 December 19811982: 15 January 1982 to 2 December 19821962196519681972197519791982JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Marrangaroo (Glenroy) meeting 10 mm (0.39 in).
First to last qualifying date each year at Marrangaroo (Glenroy)
YearFirst dateLast date
19621962-01-051962-12-21
19631963-01-031963-12-30
19641964-01-141964-11-13
19651965-04-131965-12-06
19661966-01-171966-12-24
19671967-01-251967-12-30
19681968-01-051968-12-25
19691969-01-141969-12-13
19701970-01-021970-12-29
19721972-01-131972-12-27
19731973-01-271973-12-28
19741974-01-071974-11-02
19751975-01-181975-12-31
19761976-01-131976-12-24
19771977-01-161977-09-02
19791979-03-041979-12-08
19801980-01-071980-12-14
19811981-01-061981-12-28
19821982-01-151982-12-02

Every Fixed Threshold

Fixed thresholds at Marrangaroo (Glenroy)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1938197311
25 mm (0.98 in): Days with 25 mm or more rain191219632
50 mm (1.97 in): Days with 50 mm or more rain14519642
100 mm (3.94 in): Days with 100 mm or more rain1119671

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1962.

Download the Data

  • Data for Marrangaroo (Glenroy) 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).