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Built 2026-10-18 (18 October 2026)

Dampier Downs Threshold Days by Year

5 fixed thresholds counted per year at Dampier Downs (ASN00003068): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Dampier Downs Thresholds

  • Dampier Downs: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1974 with 26.
  • Dampier Downs: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1998 with 15.
  • Dampier Downs: days with 50 mm (1.97 in) or more of precipitation in 36 years, most in 1981 with 6.
  • Dampier Downs: days with 100 mm (3.94 in) or more of precipitation in 9 years, most in 1978 with 2.
  • 5 fixed thresholds have at least one qualifying day at Dampier Downs.
40 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Dampier Downs Days per year at Dampier Downs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1974. 01020301974: 261975: 151976: 171977: 111978: 191979: 131980: 161981: 191982: 251983: 201984: 201985: 161986: 121987: 151988: 141989: 181990: 81991: 181992: 81993: 181994: 81995: 151996: 201997: 241998: 201999: 162001: 212002: 122003: 102005: 142006: 252008: 192009: 212010: 182018: 262019: 122020: 172023: 222024: 132025: 221974197819821986199019941998200320092020
Days per year at Dampier Downs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1974.
Days with 10 mm (0.39 in) or more of precipitation per year at Dampier Downs
YearDaysDecade average
19742616.8
19751516.8
19761716.8
19771116.8
19781916.8
19791316.8
19801617.5
19811917.5
19822517.5
19832017.5
19842017.5
19851617.5
19861217.5
19871517.5
19881417.5
19891817.5
1990815.5
19911815.5
1992815.5
19931815.5
1994815.5
19951515.5
19962015.5
19972415.5
19982015.5
19991615.5
20012117.4
20021217.4
20031017.4
20051417.4
20062517.4
20081917.4
20092117.4
20101818.7
20182618.7
20191218.7
20201718.5
20232218.5
20241318.5
20252218.5
First to last qualifying date each year at Dampier Downs For each year, a bar from the first to the last day at Dampier Downs meeting 10 mm (0.39 in). 1974: 3 January 1974 to 29 December 19741975: 8 January 1975 to 31 December 19751976: 2 January 1976 to 15 December 19761977: 13 January 1977 to 21 December 19771978: 17 January 1978 to 15 November 19781979: 6 January 1979 to 9 December 19791980: 4 January 1980 to 30 December 19801981: 20 January 1981 to 26 December 19811982: 3 January 1982 to 25 December 19821983: 8 January 1983 to 26 December 19831984: 1 January 1984 to 20 December 19841985: 11 January 1985 to 29 December 19851986: 13 January 1986 to 26 September 19861987: 5 January 1987 to 22 December 19871988: 4 January 1988 to 27 December 19881989: 10 January 1989 to 19 December 19891990: 19 January 1990 to 22 October 19901991: 4 January 1991 to 26 December 19911992: 24 January 1992 to 2 November 19921993: 4 January 1993 to 17 December 19931994: 20 January 1994 to 14 December 19941995: 6 January 1995 to 11 December 19951996: 17 January 1996 to 31 December 19961997: 6 January 1997 to 23 December 19971998: 3 January 1998 to 21 December 19981999: 31 January 1999 to 30 December 19992001: 14 January 2001 to 3 November 20012002: 19 January 2002 to 21 December 20022003: 26 January 2003 to 22 December 20032005: 5 January 2005 to 31 December 20052006: 1 January 2006 to 26 December 20062008: 2 January 2008 to 30 December 20082009: 1 January 2009 to 22 December 20092010: 4 January 2010 to 31 December 20102018: 10 January 2018 to 30 December 20182019: 8 January 2019 to 26 December 20192020: 5 January 2020 to 29 December 20202023: 1 January 2023 to 28 June 20232024: 14 January 2024 to 28 December 20242025: 1 January 2025 to 31 December 202519741979198419891994199920062019JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Dampier Downs meeting 10 mm (0.39 in).
First to last qualifying date each year at Dampier Downs
YearFirst dateLast date
19741974-01-031974-12-29
19751975-01-081975-12-31
19761976-01-021976-12-15
19771977-01-131977-12-21
19781978-01-171978-11-15
19791979-01-061979-12-09
19801980-01-041980-12-30
19811981-01-201981-12-26
19821982-01-031982-12-25
19831983-01-081983-12-26
19841984-01-011984-12-20
19851985-01-111985-12-29
19861986-01-131986-09-26
19871987-01-051987-12-22
19881988-01-041988-12-27
19891989-01-101989-12-19
19901990-01-191990-10-22
19911991-01-041991-12-26
19921992-01-241992-11-02
19931993-01-041993-12-17
19941994-01-201994-12-14
19951995-01-061995-12-11
19961996-01-171996-12-31
19971997-01-061997-12-23
19981998-01-031998-12-21
19991999-01-311999-12-30
20012001-01-142001-11-03
20022002-01-192002-12-21
20032003-01-262003-12-22
20052005-01-052005-12-31
20062006-01-012006-12-26
20082008-01-022008-12-30
20092009-01-012009-12-22
20102010-01-042010-12-31
20182018-01-102018-12-30
20192019-01-082019-12-26
20202020-01-052020-12-29
20232023-01-012023-06-28
20242024-01-142024-12-28
20252025-01-012025-12-31

Every Fixed Threshold

Fixed thresholds at Dampier Downs
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4026197422
25 mm (0.98 in): Days with 25 mm or more rain401519986
50 mm (1.97 in): Days with 50 mm or more rain36619813
100 mm (3.94 in): Days with 100 mm or more rain9219782
200 mm (7.87 in): Days with 200 mm or more rain2119781

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1974.

Download the Data

  • Data for Dampier 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).