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Built 2026-10-18 (18 October 2026)

Stromlo Forest Threshold Days by Year

4 fixed thresholds counted per year at Stromlo Forest (ASN00070231): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Stromlo Forest Thresholds

  • Stromlo Forest: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 2020 with 33.
  • Stromlo Forest: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 1974 with 13.
  • Stromlo Forest: days with 50 mm (1.97 in) or more of precipitation in 28 years, most in 1974 with 5.
  • Stromlo Forest: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1969 with 1.
  • 4 fixed thresholds have at least one qualifying day at Stromlo Forest.
38 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Stromlo Forest Days per year at Stromlo Forest with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 2020. 0102030401968: 201969: 241970: 231971: 231972: 141973: 311974: 261975: 311976: 161977: 191978: 271979: 121980: 131981: 211982: 91983: 271984: 211985: 231986: 211987: 111991: 171993: 271995: 141996: 221997: 162000: 172001: 142002: 112005: 92008: 132017: 182018: 132019: 92020: 332021: 302022: 322025: 172026: 161968197219761980198419911997200520192025
Days per year at Stromlo Forest with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 2020.
Days with 10 mm (0.39 in) or more of precipitation per year at Stromlo Forest
YearDaysDecade average
19682022
19692422
19702322.2
19712322.2
19721422.2
19733122.2
19742622.2
19753122.2
19761622.2
19771922.2
19782722.2
19791222.2
19801318.3
19812118.3
1982918.3
19832718.3
19842118.3
19852318.3
19862118.3
19871118.3
19911719.2
19932719.2
19951419.2
19962219.2
19971619.2
20001712.8
20011412.8
20021112.8
2005912.8
20081312.8
20171813.3
20181313.3
2019913.3
20203325.6
20213025.6
20223225.6
20251725.6
20261625.6
First to last qualifying date each year at Stromlo Forest For each year, a bar from the first to the last day at Stromlo Forest meeting 10 mm (0.39 in). 1968: 3 January 1968 to 27 December 19681969: 15 January 1969 to 12 December 19691970: 2 January 1970 to 12 December 19701971: 14 January 1971 to 31 December 19711972: 13 January 1972 to 25 November 19721973: 13 January 1973 to 31 December 19731974: 5 January 1974 to 29 November 19741975: 10 January 1975 to 30 December 19751976: 7 January 1976 to 24 December 19761977: 14 January 1977 to 30 September 19771978: 6 January 1978 to 27 December 19781979: 4 March 1979 to 24 November 19791980: 4 January 1980 to 7 December 19801981: 6 February 1981 to 26 December 19811982: 24 February 1982 to 30 September 19821983: 2 January 1983 to 8 December 19831984: 26 January 1984 to 12 November 19841985: 19 March 1985 to 8 December 19851986: 16 January 1986 to 8 December 19861987: 5 January 1987 to 29 December 19871991: 6 January 1991 to 14 December 19911993: 17 January 1993 to 22 November 19931995: 6 January 1995 to 6 December 19951996: 2 January 1996 to 26 December 19961997: 7 January 1997 to 1 November 19972000: 27 January 2000 to 6 December 20002001: 5 February 2001 to 8 November 20012002: 16 January 2002 to 17 September 20022005: 21 January 2005 to 3 December 20052008: 5 February 2008 to 29 December 20082017: 6 March 2017 to 30 December 20172018: 31 January 2018 to 14 December 20182019: 8 January 2019 to 4 November 20192020: 10 February 2020 to 22 December 20202021: 29 January 2021 to 20 December 20212022: 7 January 2022 to 12 December 20222025: 14 January 2025 to 22 December 20252026: 15 January 2026 to 25 August 202619681973197819831991200020172022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Stromlo Forest meeting 10 mm (0.39 in).
First to last qualifying date each year at Stromlo Forest
YearFirst dateLast date
19681968-01-031968-12-27
19691969-01-151969-12-12
19701970-01-021970-12-12
19711971-01-141971-12-31
19721972-01-131972-11-25
19731973-01-131973-12-31
19741974-01-051974-11-29
19751975-01-101975-12-30
19761976-01-071976-12-24
19771977-01-141977-09-30
19781978-01-061978-12-27
19791979-03-041979-11-24
19801980-01-041980-12-07
19811981-02-061981-12-26
19821982-02-241982-09-30
19831983-01-021983-12-08
19841984-01-261984-11-12
19851985-03-191985-12-08
19861986-01-161986-12-08
19871987-01-051987-12-29
19911991-01-061991-12-14
19931993-01-171993-11-22
19951995-01-061995-12-06
19961996-01-021996-12-26
19971997-01-071997-11-01
20002000-01-272000-12-06
20012001-02-052001-11-08
20022002-01-162002-09-17
20052005-01-212005-12-03
20082008-02-052008-12-29
20172017-03-062017-12-30
20182018-01-312018-12-14
20192019-01-082019-11-04
20202020-02-102020-12-22
20212021-01-292021-12-20
20222022-01-072022-12-12
20252025-01-142025-12-22
20262026-01-152026-08-25

Every Fixed Threshold

Fixed thresholds at Stromlo Forest
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3833202016
25 mm (0.98 in): Days with 25 mm or more rain381319747
50 mm (1.97 in): Days with 50 mm or more rain28519742
100 mm (3.94 in): Days with 100 mm or more rain1119691

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.

Download the Data

  • Data for Stromlo Forest 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 (2026-10-12).