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Built 2026-10-19 (19 October 2026)

Cowan Downs Station Threshold Days by Year

5 fixed thresholds counted per year at Cowan Downs Station (ASN00029086): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cowan Downs Station Thresholds

  • Cowan Downs Station: days with 10 mm (0.39 in) or more of precipitation in 27 years, most in 1974 with 44.
  • Cowan Downs Station: days with 25 mm (0.98 in) or more of precipitation in 27 years, most in 1974 with 27.
  • Cowan Downs Station: days with 50 mm (1.97 in) or more of precipitation in 21 years, most in 1974 with 14.
  • Cowan Downs Station: days with 100 mm (3.94 in) or more of precipitation in 8 years, most in 1974 with 5.
  • 5 fixed thresholds have at least one qualifying day at Cowan Downs Station.
27 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Cowan Downs Station Days per year at Cowan Downs Station with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 44 in 1974. 02040601971: 201972: 211973: 291974: 441975: 351976: 291977: 251978: 101982: 171983: 171984: 151985: 161986: 81987: 181988: 131989: 161990: 81993: 181998: 32000: 322002: 102003: 162004: 202005: 122006: 212007: 172008: 11197119741977198319861989199820032006
Days per year at Cowan Downs Station with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 44 in 1974.
Days with 10 mm (0.39 in) or more of precipitation per year at Cowan Downs Station
YearDaysDecade average
19712026.6
19722126.6
19732926.6
19744426.6
19753526.6
19762926.6
19772526.6
19781026.6
19821715
19831715
19841515
19851615
1986815
19871815
19881315
19891615
199089.7
1993189.7
199839.7
20003217.4
20021017.4
20031617.4
20042017.4
20051217.4
20062117.4
20071717.4
20081117.4
First to last qualifying date each year at Cowan Downs Station For each year, a bar from the first to the last day at Cowan Downs Station meeting 10 mm (0.39 in). 1971: 8 January 1971 to 17 April 19711972: 4 January 1972 to 31 December 19721973: 15 January 1973 to 29 December 19731974: 2 January 1974 to 29 December 19741975: 2 January 1975 to 31 December 19751976: 1 January 1976 to 30 December 19761977: 18 January 1977 to 21 December 19771978: 10 January 1978 to 18 December 19781982: 8 January 1982 to 30 December 19821983: 1 January 1983 to 6 December 19831984: 3 January 1984 to 20 December 19841985: 26 January 1985 to 28 December 19851986: 1 January 1986 to 31 December 19861987: 15 January 1987 to 27 December 19871988: 4 January 1988 to 25 December 19881989: 15 January 1989 to 15 December 19891990: 20 January 1990 to 5 June 19901993: 1 January 1993 to 19 December 19931998: 29 December 1998 to 31 December 19982000: 21 January 2000 to 28 December 20002002: 2 January 2002 to 22 December 20022003: 1 January 2003 to 27 December 20032004: 3 January 2004 to 27 December 20042005: 5 January 2005 to 17 December 20052006: 4 January 2006 to 8 December 20062007: 3 January 2007 to 26 December 20072008: 10 January 2008 to 30 December 20081971197519821986199020022006JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Cowan Downs Station meeting 10 mm (0.39 in).
First to last qualifying date each year at Cowan Downs Station
YearFirst dateLast date
19711971-01-081971-04-17
19721972-01-041972-12-31
19731973-01-151973-12-29
19741974-01-021974-12-29
19751975-01-021975-12-31
19761976-01-011976-12-30
19771977-01-181977-12-21
19781978-01-101978-12-18
19821982-01-081982-12-30
19831983-01-011983-12-06
19841984-01-031984-12-20
19851985-01-261985-12-28
19861986-01-011986-12-31
19871987-01-151987-12-27
19881988-01-041988-12-25
19891989-01-151989-12-15
19901990-01-201990-06-05
19931993-01-011993-12-19
19981998-12-291998-12-31
20002000-01-212000-12-28
20022002-01-022002-12-22
20032003-01-012003-12-27
20042004-01-032004-12-27
20052005-01-052005-12-17
20062006-01-042006-12-08
20072007-01-032007-12-26
20082008-01-102008-12-30

Every Fixed Threshold

Fixed thresholds at Cowan Downs Station
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2744197411
25 mm (0.98 in): Days with 25 mm or more rain272719748
50 mm (1.97 in): Days with 50 mm or more rain211419742
100 mm (3.94 in): Days with 100 mm or more rain8519741
200 mm (7.87 in): Days with 200 mm or more rain2319741

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1971.

Download the Data

  • Data for Cowan Downs Station 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).