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Built 2026-10-19 (19 October 2026)

Bau Threshold Days by Year (BR000438011)

4 fixed thresholds counted per year at Bau (BR000438011): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bau Thresholds

  • Bau: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 1964 with 67.
  • Bau: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 1974 with 30.
  • Bau: days with 50 mm (1.97 in) or more of precipitation in 31 years, most in 1963 with 7.
  • Bau: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1917 with 1.
  • 4 fixed thresholds have at least one qualifying day at Bau.
38 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Bau Days per year at Bau with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 67 in 1964. 0204060801917: 631918: 471919: 91920: 401921: 531922: 471923: 311924: 661925: 441926: 401927: 371928: 241929: 461930: 241963: 531964: 671965: 461966: 281967: 381968: 431969: 371970: 251971: 471972: 331973: 571974: 591975: 601976: 311977: 411991: 381992: 251993: 141994: 551995: 491996: 421997: 201998: 272000: 481917192119251929196519691973197719941998
Days per year at Bau with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 67 in 1964.
Days with 10 mm (0.39 in) or more of precipitation per year at Bau
YearDaysDecade average
19176339.7
19184739.7
1919939.7
19204042.8
19215342.8
19224742.8
19233142.8
19246642.8
19254442.8
19264042.8
19273742.8
19282442.8
19294642.8
19302424
19635344.6
19646744.6
19654644.6
19662844.6
19673844.6
19684344.6
19693744.6
19702544.1
19714744.1
19723344.1
19735744.1
19745944.1
19756044.1
19763144.1
19774144.1
19913833.8
19922533.8
19931433.8
19945533.8
19954933.8
19964233.8
19972033.8
19982733.8
20004848
First to last qualifying date each year at Bau For each year, a bar from the first to the last day at Bau meeting 10 mm (0.39 in). 1917: 1 January 1917 to 21 December 19171918: 5 January 1918 to 31 December 19181919: 17 February 1919 to 11 August 19191920: 15 February 1920 to 29 December 19201921: 4 January 1921 to 16 November 19211922: 23 January 1922 to 26 December 19221923: 4 February 1923 to 23 November 19231924: 23 January 1924 to 29 December 19241925: 12 January 1925 to 31 October 19251926: 11 January 1926 to 12 December 19261927: 22 January 1927 to 7 December 19271928: 5 January 1928 to 27 June 19281929: 23 January 1929 to 2 December 19291930: 2 January 1930 to 31 December 19301963: 13 January 1963 to 28 December 19631964: 2 January 1964 to 15 December 19641965: 9 January 1965 to 7 July 19651966: 8 February 1966 to 3 December 19661967: 3 February 1967 to 30 December 19671968: 21 January 1968 to 18 December 19681969: 23 January 1969 to 5 August 19691970: 21 January 1970 to 7 November 19701971: 11 January 1971 to 26 December 19711972: 22 January 1972 to 22 August 19721973: 7 January 1973 to 28 July 19731974: 15 January 1974 to 23 December 19741975: 3 January 1975 to 7 December 19751976: 27 January 1976 to 5 October 19761977: 15 January 1977 to 17 July 19771991: 3 January 1991 to 25 October 19911992: 27 January 1992 to 30 October 19921993: 25 February 1993 to 5 December 19931994: 1 January 1994 to 29 December 19941995: 9 January 1995 to 28 July 19951996: 4 January 1996 to 31 May 19961997: 4 March 1997 to 30 December 19971998: 2 January 1998 to 29 December 19982000: 4 January 2000 to 13 September 200019171922192719641969197419921997JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bau meeting 10 mm (0.39 in).
First to last qualifying date each year at Bau
YearFirst dateLast date
19171917-01-011917-12-21
19181918-01-051918-12-31
19191919-02-171919-08-11
19201920-02-151920-12-29
19211921-01-041921-11-16
19221922-01-231922-12-26
19231923-02-041923-11-23
19241924-01-231924-12-29
19251925-01-121925-10-31
19261926-01-111926-12-12
19271927-01-221927-12-07
19281928-01-051928-06-27
19291929-01-231929-12-02
19301930-01-021930-12-31
19631963-01-131963-12-28
19641964-01-021964-12-15
19651965-01-091965-07-07
19661966-02-081966-12-03
19671967-02-031967-12-30
19681968-01-211968-12-18
19691969-01-231969-08-05
19701970-01-211970-11-07
19711971-01-111971-12-26
19721972-01-221972-08-22
19731973-01-071973-07-28
19741974-01-151974-12-23
19751975-01-031975-12-07
19761976-01-271976-10-05
19771977-01-151977-07-17
19911991-01-031991-10-25
19921992-01-271992-10-30
19931993-02-251993-12-05
19941994-01-011994-12-29
19951995-01-091995-07-28
19961996-01-041996-05-31
19971997-03-041997-12-30
19981998-01-021998-12-29
20002000-01-042000-09-13

Every Fixed Threshold

Fixed thresholds at Bau
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3867196448
25 mm (0.98 in): Days with 25 mm or more rain3830197412
50 mm (1.97 in): Days with 50 mm or more rain31719632
100 mm (3.94 in): Days with 100 mm or more rain3119171

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1917.

Download the Data

  • Data for Bau 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).