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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Bonai Threshold Days by Year (IN017130500)

5 fixed thresholds counted per year at Bonai (IN017130500): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bonai Thresholds

  • Bonai: days with 10 mm (0.39 in) or more of precipitation in 32 years, most in 1936 with 62.
  • Bonai: days with 25 mm (0.98 in) or more of precipitation in 32 years, most in 1936 with 29.
  • Bonai: days with 50 mm (1.97 in) or more of precipitation in 32 years, most in 1920 with 16.
  • Bonai: days with 100 mm (3.94 in) or more of precipitation in 19 years, most in 1920 with 8.
  • 5 fixed thresholds have at least one qualifying day at Bonai.
32 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Bonai Days per year at Bonai with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 62 in 1936. 0204060801912: 451913: 421914: 461915: 391916: 421917: 501918: 451919: 531920: 521921: 371922: 411923: 461924: 421925: 431926: 421927: 391928: 581929: 491931: 501933: 531934: 451935: 411936: 621937: 431938: 411939: 471940: 411952: 461954: 241955: 351957: 291967: 4919121916192019241928193419381954
Days per year at Bonai with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 62 in 1936.
Days with 10 mm (0.39 in) or more of precipitation per year at Bonai
YearDaysDecade average
19124545.3
19134245.3
19144645.3
19153945.3
19164245.3
19175045.3
19184545.3
19195345.3
19205244.9
19213744.9
19224144.9
19234644.9
19244244.9
19254344.9
19264244.9
19273944.9
19285844.9
19294944.9
19315047.8
19335347.8
19344547.8
19354147.8
19366247.8
19374347.8
19384147.8
19394747.8
19404141
19524633.5
19542433.5
19553533.5
19572933.5
19674949
First to last qualifying date each year at Bonai For each year, a bar from the first to the last day at Bonai meeting 10 mm (0.39 in). 1912: 6 February 1912 to 24 November 19121913: 5 March 1913 to 19 November 19131914: 7 April 1914 to 20 September 19141915: 6 February 1915 to 21 October 19151916: 18 April 1916 to 31 October 19161917: 4 February 1917 to 8 October 19171918: 1 May 1918 to 16 September 19181919: 19 January 1919 to 10 November 19191920: 9 March 1920 to 15 September 19201921: 22 January 1921 to 13 September 19211922: 2 January 1922 to 23 November 19221923: 16 February 1923 to 2 November 19231924: 6 January 1924 to 8 November 19241925: 21 April 1925 to 22 December 19251926: 5 January 1926 to 26 September 19261927: 23 February 1927 to 13 October 19271928: 24 February 1928 to 11 October 19281929: 14 May 1929 to 17 December 19291931: 1 January 1931 to 6 November 19311933: 25 January 1933 to 25 December 19331934: 13 June 1934 to 8 December 19341935: 4 February 1935 to 23 September 19351936: 31 January 1936 to 20 October 19361937: 13 February 1937 to 3 October 19371938: 16 January 1938 to 9 October 19381939: 31 January 1939 to 25 October 19391940: 7 February 1940 to 22 December 19401952: 11 February 1952 to 13 October 19521954: 4 May 1954 to 29 December 19541955: 6 May 1955 to 7 November 19551957: 26 February 1957 to 25 October 19571967: 6 January 1967 to 25 September 196719121916192019241928193419381954JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bonai meeting 10 mm (0.39 in).
First to last qualifying date each year at Bonai
YearFirst dateLast date
19121912-02-061912-11-24
19131913-03-051913-11-19
19141914-04-071914-09-20
19151915-02-061915-10-21
19161916-04-181916-10-31
19171917-02-041917-10-08
19181918-05-011918-09-16
19191919-01-191919-11-10
19201920-03-091920-09-15
19211921-01-221921-09-13
19221922-01-021922-11-23
19231923-02-161923-11-02
19241924-01-061924-11-08
19251925-04-211925-12-22
19261926-01-051926-09-26
19271927-02-231927-10-13
19281928-02-241928-10-11
19291929-05-141929-12-17
19311931-01-011931-11-06
19331933-01-251933-12-25
19341934-06-131934-12-08
19351935-02-041935-09-23
19361936-01-311936-10-20
19371937-02-131937-10-03
19381938-01-161938-10-09
19391939-01-311939-10-25
19401940-02-071940-12-22
19521952-02-111952-10-13
19541954-05-041954-12-29
19551955-05-061955-11-07
19571957-02-261957-10-25
19671967-01-061967-09-25

Every Fixed Threshold

Fixed thresholds at Bonai
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3262193649
25 mm (0.98 in): Days with 25 mm or more rain3229193614
50 mm (1.97 in): Days with 50 mm or more rain321619203
100 mm (3.94 in): Days with 100 mm or more rain19819201
200 mm (7.87 in): Days with 200 mm or more rain3219202

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.

Download the Data

  • Data for Bonai 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).