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Built 2026-10-19 (19 October 2026)

Bayswater Threshold Days by Year (ASN00086230)

3 fixed thresholds counted per year at Bayswater (ASN00086230): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bayswater Thresholds

  • Bayswater: days with 10 mm (0.39 in) or more of precipitation in 35 years, most in 1978 with 40.
  • Bayswater: days with 25 mm (0.98 in) or more of precipitation in 35 years, most in 1974 with 11.
  • Bayswater: days with 50 mm (1.97 in) or more of precipitation in 13 years, most in 1989 with 3.
  • 3 fixed thresholds have at least one qualifying day at Bayswater.
35 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Bayswater Days per year at Bayswater with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 40 in 1978. 0102030401964: 331965: 231966: 241967: 221968: 231969: 281970: 321971: 241972: 191973: 361974: 351975: 261976: 231977: 271978: 401979: 211980: 241981: 281982: 201983: 251984: 301985: 311986: 221987: 271988: 261989: 281990: 321991: 311992: 381993: 331994: 151995: 351996: 341997: 151998: 27196419681972197619801984198819921996
Days per year at Bayswater with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 40 in 1978.
Days with 10 mm (0.39 in) or more of precipitation per year at Bayswater
YearDaysDecade average
19643325.5
19652325.5
19662425.5
19672225.5
19682325.5
19692825.5
19703228.3
19712428.3
19721928.3
19733628.3
19743528.3
19752628.3
19762328.3
19772728.3
19784028.3
19792128.3
19802426.1
19812826.1
19822026.1
19832526.1
19843026.1
19853126.1
19862226.1
19872726.1
19882626.1
19892826.1
19903228.9
19913128.9
19923828.9
19933328.9
19941528.9
19953528.9
19963428.9
19971528.9
19982728.9
First to last qualifying date each year at Bayswater For each year, a bar from the first to the last day at Bayswater meeting 10 mm (0.39 in). 1964: 7 February 1964 to 29 December 19641965: 14 March 1965 to 1 December 19651966: 13 January 1966 to 16 December 19661967: 13 January 1967 to 30 December 19671968: 21 January 1968 to 26 December 19681969: 15 January 1969 to 3 December 19691970: 2 January 1970 to 29 December 19701971: 2 January 1971 to 23 December 19711972: 12 January 1972 to 11 November 19721973: 13 January 1973 to 16 December 19731974: 4 January 1974 to 28 December 19741975: 26 January 1975 to 30 December 19751976: 9 January 1976 to 16 December 19761977: 15 January 1977 to 28 December 19771978: 24 January 1978 to 26 December 19781979: 17 January 1979 to 12 November 19791980: 13 January 1980 to 14 December 19801981: 19 January 1981 to 13 December 19811982: 25 January 1982 to 9 December 19821983: 2 January 1983 to 1 December 19831984: 16 January 1984 to 14 December 19841985: 3 January 1985 to 23 December 19851986: 10 January 1986 to 17 December 19861987: 3 January 1987 to 24 December 19871988: 1 January 1988 to 4 December 19881989: 13 March 1989 to 15 December 19891990: 1 February 1990 to 20 December 19901991: 5 January 1991 to 31 December 19911992: 1 January 1992 to 28 December 19921993: 25 January 1993 to 28 December 19931994: 6 January 1994 to 22 December 19941995: 21 January 1995 to 21 December 19951996: 3 January 1996 to 27 December 19961997: 7 January 1997 to 14 November 19971998: 13 January 1998 to 27 December 19981964196919741979198419891994JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bayswater meeting 10 mm (0.39 in).
First to last qualifying date each year at Bayswater
YearFirst dateLast date
19641964-02-071964-12-29
19651965-03-141965-12-01
19661966-01-131966-12-16
19671967-01-131967-12-30
19681968-01-211968-12-26
19691969-01-151969-12-03
19701970-01-021970-12-29
19711971-01-021971-12-23
19721972-01-121972-11-11
19731973-01-131973-12-16
19741974-01-041974-12-28
19751975-01-261975-12-30
19761976-01-091976-12-16
19771977-01-151977-12-28
19781978-01-241978-12-26
19791979-01-171979-11-12
19801980-01-131980-12-14
19811981-01-191981-12-13
19821982-01-251982-12-09
19831983-01-021983-12-01
19841984-01-161984-12-14
19851985-01-031985-12-23
19861986-01-101986-12-17
19871987-01-031987-12-24
19881988-01-011988-12-04
19891989-03-131989-12-15
19901990-02-011990-12-20
19911991-01-051991-12-31
19921992-01-011992-12-28
19931993-01-251993-12-28
19941994-01-061994-12-22
19951995-01-211995-12-21
19961996-01-031996-12-27
19971997-01-071997-11-14
19981998-01-131998-12-27

Every Fixed Threshold

Fixed thresholds at Bayswater
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3540197827
25 mm (0.98 in): Days with 25 mm or more rain351119748
50 mm (1.97 in): Days with 50 mm or more rain13319891

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1964.

Download the Data

  • Data for Bayswater 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).