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Built 2026-10-19 (19 October 2026)

Serpentine Pipe Head Threshold Days by Year (ASN00009073)

4 fixed thresholds counted per year at Serpentine Pipe Head (ASN00009073): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Serpentine Pipe Head Thresholds

  • Serpentine Pipe Head: days with 10 mm (0.39 in) or more of precipitation in 32 years, most in 1964 with 62.
  • Serpentine Pipe Head: days with 25 mm (0.98 in) or more of precipitation in 32 years, most in 1963 with 22.
  • Serpentine Pipe Head: days with 50 mm (1.97 in) or more of precipitation in 29 years, most in 1964 with 4.
  • Serpentine Pipe Head: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1964 with 1.
  • 4 fixed thresholds have at least one qualifying day at Serpentine Pipe Head.
32 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Serpentine Pipe Head Days per year at Serpentine Pipe Head with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 62 in 1964. 0204060801960: 441961: 441962: 361963: 531964: 621965: 471966: 361967: 381968: 531969: 301970: 441971: 361972: 331973: 561974: 531975: 411977: 291978: 361979: 331980: 361981: 411982: 321983: 401984: 461985: 361986: 401987: 291988: 471989: 361990: 441991: 501992: 4719601964196819721977198119851989
Days per year at Serpentine Pipe Head with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 62 in 1964.
Days with 10 mm (0.39 in) or more of precipitation per year at Serpentine Pipe Head
YearDaysDecade average
19604444.3
19614444.3
19623644.3
19635344.3
19646244.3
19654744.3
19663644.3
19673844.3
19685344.3
19693044.3
19704440.1
19713640.1
19723340.1
19735640.1
19745340.1
19754140.1
19772940.1
19783640.1
19793340.1
19803638.3
19814138.3
19823238.3
19834038.3
19844638.3
19853638.3
19864038.3
19872938.3
19884738.3
19893638.3
19904447
19915047
19924747
First to last qualifying date each year at Serpentine Pipe Head For each year, a bar from the first to the last day at Serpentine Pipe Head meeting 10 mm (0.39 in). 1960: 1 January 1960 to 14 October 19601961: 26 January 1961 to 16 December 19611962: 12 May 1962 to 6 December 19621963: 20 February 1963 to 17 October 19631964: 2 April 1964 to 19 December 19641965: 12 April 1965 to 20 December 19651966: 12 April 1966 to 27 December 19661967: 11 April 1967 to 16 November 19671968: 7 January 1968 to 18 November 19681969: 13 March 1969 to 10 December 19691970: 7 February 1970 to 4 November 19701971: 27 March 1971 to 20 October 19711972: 20 April 1972 to 8 October 19721973: 9 April 1973 to 24 October 19731974: 3 April 1974 to 30 October 19741975: 21 March 1975 to 16 November 19751977: 7 May 1977 to 8 October 19771978: 24 February 1978 to 2 October 19781979: 15 March 1979 to 13 November 19791980: 11 February 1980 to 31 December 19801981: 18 February 1981 to 26 November 19811982: 21 January 1982 to 5 October 19821983: 6 February 1983 to 31 December 19831984: 8 March 1984 to 28 December 19841985: 10 February 1985 to 9 November 19851986: 22 February 1986 to 9 November 19861987: 17 March 1987 to 24 December 19871988: 24 March 1988 to 7 November 19881989: 26 January 1989 to 18 October 19891990: 10 January 1990 to 17 November 19901991: 26 February 1991 to 26 December 19911992: 7 February 1992 to 9 December 199219601964196819721977198119851989JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Serpentine Pipe Head meeting 10 mm (0.39 in).
First to last qualifying date each year at Serpentine Pipe Head
YearFirst dateLast date
19601960-01-011960-10-14
19611961-01-261961-12-16
19621962-05-121962-12-06
19631963-02-201963-10-17
19641964-04-021964-12-19
19651965-04-121965-12-20
19661966-04-121966-12-27
19671967-04-111967-11-16
19681968-01-071968-11-18
19691969-03-131969-12-10
19701970-02-071970-11-04
19711971-03-271971-10-20
19721972-04-201972-10-08
19731973-04-091973-10-24
19741974-04-031974-10-30
19751975-03-211975-11-16
19771977-05-071977-10-08
19781978-02-241978-10-02
19791979-03-151979-11-13
19801980-02-111980-12-31
19811981-02-181981-11-26
19821982-01-211982-10-05
19831983-02-061983-12-31
19841984-03-081984-12-28
19851985-02-101985-11-09
19861986-02-221986-11-09
19871987-03-171987-12-24
19881988-03-241988-11-07
19891989-01-261989-10-18
19901990-01-101990-11-17
19911991-02-261991-12-26
19921992-02-071992-12-09

Every Fixed Threshold

Fixed thresholds at Serpentine Pipe Head
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3262196447
25 mm (0.98 in): Days with 25 mm or more rain3222196311
50 mm (1.97 in): Days with 50 mm or more rain29419642
100 mm (3.94 in): Days with 100 mm or more rain3119641

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1960.

Download the Data

  • Data for Serpentine Pipe Head 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).