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Built 2026-10-19 (19 October 2026)

Bira Threshold Days by Year (RSM00031618)

3 fixed thresholds counted per year at Bira (RSM00031618): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bira Thresholds

  • Bira: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 1959 with 48.
  • Bira: days with 25 mm (0.98 in) or more of precipitation in 52 years, most in 1991 with 15.
  • Bira: days with 50 mm (1.97 in) or more of precipitation in 32 years, most in 1963 with 5.
  • 3 fixed thresholds have at least one qualifying day at Bira.
52 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Bira Days per year at Bira with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 48 in 1959. 02040601936: 261937: 291939: 241940: 191941: 201942: 331943: 271944: 201947: 301948: 241949: 191950: 211951: 291952: 181953: 311954: 181955: 351956: 281957: 291958: 321959: 481960: 331962: 301963: 291964: 281965: 261966: 231967: 231968: 221969: 241971: 391972: 321973: 211974: 211975: 241976: 221977: 251978: 221979: 241980: 291981: 301982: 271983: 371984: 351985: 291986: 171987: 291988: 211989: 271990: 251991: 411992: 25193619431951195719641971197719831989
Days per year at Bira with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 48 in 1959.
Days with 10 mm (0.39 in) or more of precipitation per year at Bira
YearDaysDecade average
19362626.3
19372926.3
19392426.3
19401924
19412024
19423324
19432724
19442024
19473024
19482424
19491924
19502128.9
19512928.9
19521828.9
19533128.9
19541828.9
19553528.9
19562828.9
19572928.9
19583228.9
19594828.9
19603326.4
19623026.4
19632926.4
19642826.4
19652626.4
19662326.4
19672326.4
19682226.4
19692426.4
19713925.6
19723225.6
19732125.6
19742125.6
19752425.6
19762225.6
19772525.6
19782225.6
19792425.6
19802928.1
19813028.1
19822728.1
19833728.1
19843528.1
19852928.1
19861728.1
19872928.1
19882128.1
19892728.1
19902530.3
19914130.3
19922530.3
First to last qualifying date each year at Bira For each year, a bar from the first to the last day at Bira meeting 10 mm (0.39 in). 1936: 23 March 1936 to 27 November 19361937: 13 April 1937 to 12 October 19371939: 21 April 1939 to 20 November 19391940: 15 May 1940 to 24 October 19401941: 19 February 1941 to 4 October 19411942: 21 April 1942 to 22 October 19421943: 19 March 1943 to 8 November 19431944: 6 May 1944 to 9 November 19441947: 3 March 1947 to 22 October 19471948: 8 April 1948 to 25 October 19481949: 12 May 1949 to 5 December 19491950: 27 April 1950 to 19 November 19501951: 29 April 1951 to 1 October 19511952: 27 May 1952 to 17 September 19521953: 11 February 1953 to 21 October 19531954: 19 March 1954 to 23 October 19541955: 27 February 1955 to 5 December 19551956: 23 April 1956 to 31 October 19561957: 25 April 1957 to 19 December 19571958: 21 March 1958 to 18 October 19581959: 11 March 1959 to 28 October 19591960: 11 March 1960 to 19 November 19601962: 3 April 1962 to 28 September 19621963: 3 January 1963 to 4 October 19631964: 30 March 1964 to 1 November 19641965: 9 May 1965 to 15 October 19651966: 23 April 1966 to 29 October 19661967: 16 May 1967 to 30 October 19671968: 5 March 1968 to 6 November 19681969: 20 March 1969 to 10 November 19691971: 29 March 1971 to 6 December 19711972: 16 April 1972 to 23 November 19721973: 10 April 1973 to 10 November 19731974: 16 April 1974 to 31 October 19741975: 12 April 1975 to 7 October 19751976: 12 March 1976 to 20 November 19761977: 23 March 1977 to 27 November 19771978: 19 April 1978 to 2 December 19781979: 9 April 1979 to 20 December 19791980: 19 April 1980 to 3 December 19801981: 3 May 1981 to 22 October 19811982: 12 January 1982 to 23 December 19821983: 3 April 1983 to 17 November 19831984: 24 March 1984 to 8 November 19841985: 8 April 1985 to 26 October 19851986: 22 May 1986 to 27 September 19861987: 16 May 1987 to 18 November 19871988: 22 January 1988 to 25 November 19881989: 22 April 1989 to 27 December 19891990: 11 February 1990 to 6 October 19901991: 8 April 1991 to 27 October 19911992: 19 March 1992 to 1 October 199219361944195319601968197619831990JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bira meeting 10 mm (0.39 in).
First to last qualifying date each year at Bira
YearFirst dateLast date
19361936-03-231936-11-27
19371937-04-131937-10-12
19391939-04-211939-11-20
19401940-05-151940-10-24
19411941-02-191941-10-04
19421942-04-211942-10-22
19431943-03-191943-11-08
19441944-05-061944-11-09
19471947-03-031947-10-22
19481948-04-081948-10-25
19491949-05-121949-12-05
19501950-04-271950-11-19
19511951-04-291951-10-01
19521952-05-271952-09-17
19531953-02-111953-10-21
19541954-03-191954-10-23
19551955-02-271955-12-05
19561956-04-231956-10-31
19571957-04-251957-12-19
19581958-03-211958-10-18
19591959-03-111959-10-28
19601960-03-111960-11-19
19621962-04-031962-09-28
19631963-01-031963-10-04
19641964-03-301964-11-01
19651965-05-091965-10-15
19661966-04-231966-10-29
19671967-05-161967-10-30
19681968-03-051968-11-06
19691969-03-201969-11-10
19711971-03-291971-12-06
19721972-04-161972-11-23
19731973-04-101973-11-10
19741974-04-161974-10-31
19751975-04-121975-10-07
19761976-03-121976-11-20
19771977-03-231977-11-27
19781978-04-191978-12-02
19791979-04-091979-12-20
19801980-04-191980-12-03
19811981-05-031981-10-22
19821982-01-121982-12-23
19831983-04-031983-11-17
19841984-03-241984-11-08
19851985-04-081985-10-26
19861986-05-221986-09-27
19871987-05-161987-11-18
19881988-01-221988-11-25
19891989-04-221989-12-27
19901990-02-111990-10-06
19911991-04-081991-10-27
19921992-03-191992-10-01

Every Fixed Threshold

Fixed thresholds at Bira
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain5248195925
25 mm (0.98 in): Days with 25 mm or more rain5215199110
50 mm (1.97 in): Days with 50 mm or more rain32519632

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1936.

Download the Data

  • Data for Bira 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).