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

Biswan Threshold Days by Year (IN023500101)

5 fixed thresholds counted per year at Biswan (IN023500101): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Biswan Thresholds

  • Biswan: days with 10 mm (0.39 in) or more of precipitation in 65 years, most in 1936 with 47.
  • Biswan: days with 25 mm (0.98 in) or more of precipitation in 65 years, most in 1936 with 32.
  • Biswan: days with 50 mm (1.97 in) or more of precipitation in 65 years, most in 1936 with 17.
  • Biswan: days with 100 mm (3.94 in) or more of precipitation in 46 years, most in 1911 with 4.
  • 5 fixed thresholds have at least one qualifying day at Biswan.
65 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Biswan Days per year at Biswan with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 47 in 1936. 02040601901: 261902: 221903: 251904: 231905: 171906: 301907: 131908: 151909: 301910: 211911: 301912: 191913: 211914: 331915: 401916: 331917: 271918: 111919: 171920: 201921: 321922: 381923: 311924: 301925: 281926: 281927: 341928: 231929: 321930: 301931: 211932: 181933: 311934: 301935: 251936: 471937: 231938: 311939: 291940: 241941: 151942: 351943: 281944: 311945: 321946: 311947: 361948: 311949: 261950: 281951: 231952: 271953: 211954: 351955: 371956: 291957: 301958: 251959: 221960: 291961: 351962: 271963: 241965: 141967: 251901190819151922192919361943195019571965
Days per year at Biswan with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 47 in 1936.
Days with 10 mm (0.39 in) or more of precipitation per year at Biswan
YearDaysDecade average
19012622.3
19022222.3
19032522.3
19042322.3
19051722.3
19063022.3
19071322.3
19081522.3
19093022.3
19102125.2
19113025.2
19121925.2
19132125.2
19143325.2
19154025.2
19163325.2
19172725.2
19181125.2
19191725.2
19202029.6
19213229.6
19223829.6
19233129.6
19243029.6
19252829.6
19262829.6
19273429.6
19282329.6
19293229.6
19303028.5
19312128.5
19321828.5
19333128.5
19343028.5
19352528.5
19364728.5
19372328.5
19383128.5
19392928.5
19402428.9
19411528.9
19423528.9
19432828.9
19443128.9
19453228.9
19463128.9
19473628.9
19483128.9
19492628.9
19502827.7
19512327.7
19522727.7
19532127.7
19543527.7
19553727.7
19562927.7
19573027.7
19582527.7
19592227.7
19602925.7
19613525.7
19622725.7
19632425.7
19651425.7
19672525.7
First to last qualifying date each year at Biswan For each year, a bar from the first to the last day at Biswan meeting 10 mm (0.39 in). 1901: 2 January 1901 to 25 September 19011902: 27 May 1902 to 20 October 19021903: 25 January 1903 to 11 October 19031904: 1 June 1904 to 18 December 19041905: 16 February 1905 to 15 September 19051906: 28 January 1906 to 29 September 19061907: 6 February 1907 to 30 August 19071908: 11 January 1908 to 8 September 19081909: 19 April 1909 to 26 December 19091910: 30 May 1910 to 4 October 19101911: 2 January 1911 to 19 November 19111912: 10 January 1912 to 24 November 19121913: 16 February 1913 to 12 December 19131914: 4 March 1914 to 25 September 19141915: 5 February 1915 to 24 September 19151916: 18 February 1916 to 21 September 19161917: 4 February 1917 to 25 September 19171918: 14 June 1918 to 6 September 19181919: 19 January 1919 to 4 October 19191920: 25 May 1920 to 13 September 19201921: 21 January 1921 to 24 September 19211922: 2 January 1922 to 24 December 19221923: 10 February 1923 to 3 December 19231924: 4 February 1924 to 11 December 19241925: 24 April 1925 to 28 September 19251926: 9 March 1926 to 26 September 19261927: 23 February 1927 to 15 November 19271928: 1 January 1928 to 4 December 19281929: 27 January 1929 to 20 December 19291930: 1 February 1930 to 31 October 19301931: 12 July 1931 to 17 October 19311932: 7 May 1932 to 4 November 19321933: 23 January 1933 to 21 October 19331934: 11 January 1934 to 30 September 19341935: 3 January 1935 to 17 September 19351936: 7 February 1936 to 19 December 19361937: 9 February 1937 to 9 September 19371938: 27 May 1938 to 13 October 19381939: 23 February 1939 to 6 October 19391940: 19 January 1940 to 24 September 19401941: 13 May 1941 to 22 September 19411942: 16 January 1942 to 26 December 19421943: 15 February 1943 to 21 October 19431944: 24 January 1944 to 6 October 19441945: 5 January 1945 to 24 October 19451946: 11 April 1946 to 20 October 19461947: 6 January 1947 to 6 October 19471948: 22 June 1948 to 15 October 19481949: 5 February 1949 to 31 October 19491950: 26 January 1950 to 25 December 19501951: 17 January 1951 to 13 September 19511952: 2 March 1952 to 13 September 19521953: 16 January 1953 to 29 September 19531954: 1 January 1954 to 2 October 19541955: 25 January 1955 to 15 October 19551956: 8 January 1956 to 11 October 19561957: 9 January 1957 to 23 October 19571958: 29 January 1958 to 4 October 19581959: 29 January 1959 to 4 October 19591960: 11 March 1960 to 7 October 19601961: 1 January 1961 to 18 December 19611962: 26 January 1962 to 26 September 19621963: 9 May 1963 to 16 September 19631965: 19 July 1965 to 19 October 19651967: 24 March 1967 to 23 September 196719011910191919281937194619551965JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Biswan meeting 10 mm (0.39 in).
First to last qualifying date each year at Biswan
YearFirst dateLast date
19011901-01-021901-09-25
19021902-05-271902-10-20
19031903-01-251903-10-11
19041904-06-011904-12-18
19051905-02-161905-09-15
19061906-01-281906-09-29
19071907-02-061907-08-30
19081908-01-111908-09-08
19091909-04-191909-12-26
19101910-05-301910-10-04
19111911-01-021911-11-19
19121912-01-101912-11-24
19131913-02-161913-12-12
19141914-03-041914-09-25
19151915-02-051915-09-24
19161916-02-181916-09-21
19171917-02-041917-09-25
19181918-06-141918-09-06
19191919-01-191919-10-04
19201920-05-251920-09-13
19211921-01-211921-09-24
19221922-01-021922-12-24
19231923-02-101923-12-03
19241924-02-041924-12-11
19251925-04-241925-09-28
19261926-03-091926-09-26
19271927-02-231927-11-15
19281928-01-011928-12-04
19291929-01-271929-12-20
19301930-02-011930-10-31
19311931-07-121931-10-17
19321932-05-071932-11-04
19331933-01-231933-10-21
19341934-01-111934-09-30
19351935-01-031935-09-17
19361936-02-071936-12-19
19371937-02-091937-09-09
19381938-05-271938-10-13
19391939-02-231939-10-06
19401940-01-191940-09-24
19411941-05-131941-09-22
19421942-01-161942-12-26
19431943-02-151943-10-21
19441944-01-241944-10-06
19451945-01-051945-10-24
19461946-04-111946-10-20
19471947-01-061947-10-06
19481948-06-221948-10-15
19491949-02-051949-10-31
19501950-01-261950-12-25
19511951-01-171951-09-13
19521952-03-021952-09-13
19531953-01-161953-09-29
19541954-01-011954-10-02
19551955-01-251955-10-15
19561956-01-081956-10-11
19571957-01-091957-10-23
19581958-01-291958-10-04
19591959-01-291959-10-04
19601960-03-111960-10-07
19611961-01-011961-12-18
19621962-01-261962-09-26
19631963-05-091963-09-16
19651965-07-191965-10-19
19671967-03-241967-09-23

Every Fixed Threshold

Fixed thresholds at Biswan
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain6547193625
25 mm (0.98 in): Days with 25 mm or more rain6532193613
50 mm (1.97 in): Days with 50 mm or more rain651719366
100 mm (3.94 in): Days with 100 mm or more rain46419111
200 mm (7.87 in): Days with 200 mm or more rain8119041

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1901.

Download the Data

  • Data for Biswan 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).