Built 2026-10-19 (19 October 2026)

Borio Threshold Days by Year (IN004161401)

5 fixed thresholds counted per year at Borio (IN004161401): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Borio Thresholds

  • Borio: days with 10 mm (0.39 in) or more of precipitation in 67 years, most in 1917 with 64.
  • Borio: days with 25 mm (0.98 in) or more of precipitation in 67 years, most in 1917 with 40.
  • Borio: days with 50 mm (1.97 in) or more of precipitation in 67 years, most in 1959 with 16.
  • Borio: days with 100 mm (3.94 in) or more of precipitation in 34 years, most in 1959 with 5.
  • 5 fixed thresholds have at least one qualifying day at Borio.
67 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Borio Days per year at Borio with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 64 in 1917. 0204060801902: 331903: 271904: 421905: 491906: 401907: 431908: 271909: 381910: 441911: 501912: 461913: 451914: 341915: 391916: 541917: 641918: 461919: 491920: 391921: 381922: 431923: 321924: 531925: 371926: 361927: 361928: 431929: 431930: 331931: 441932: 371933: 441934: 371935: 341936: 431937: 511938: 471939: 411940: 301941: 411942: 381943: 511944: 501945: 411946: 491947: 341948: 371949: 551950: 531951: 221952: 441953: 371954: 371955: 531956: 481957: 301958: 361959: 571960: 401962: 401964: 461965: 321966: 351967: 361968: 541969: 431970: 451902190919161923193019371944195119581967
Days per year at Borio with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 64 in 1917.
Days with 10 mm (0.39 in) or more of precipitation per year at Borio
YearDaysDecade average
19023337.4
19032737.4
19044237.4
19054937.4
19064037.4
19074337.4
19082737.4
19093837.4
19104447.1
19115047.1
19124647.1
19134547.1
19143447.1
19153947.1
19165447.1
19176447.1
19184647.1
19194947.1
19203940
19213840
19224340
19233240
19245340
19253740
19263640
19273640
19284340
19294340
19303341.1
19314441.1
19323741.1
19334441.1
19343741.1
19353441.1
19364341.1
19375141.1
19384741.1
19394141.1
19403042.6
19414142.6
19423842.6
19435142.6
19445042.6
19454142.6
19464942.6
19473442.6
19483742.6
19495542.6
19505341.7
19512241.7
19524441.7
19533741.7
19543741.7
19555341.7
19564841.7
19573041.7
19583641.7
19595741.7
19604040.8
19624040.8
19644640.8
19653240.8
19663540.8
19673640.8
19685440.8
19694340.8
19704545
First to last qualifying date each year at Borio For each year, a bar from the first to the last day at Borio meeting 10 mm (0.39 in). 1902: 22 March 1902 to 3 October 19021903: 27 January 1903 to 31 October 19031904: 19 January 1904 to 15 November 19041905: 23 January 1905 to 29 September 19051906: 22 January 1906 to 1 November 19061907: 23 March 1907 to 16 October 19071908: 1 February 1908 to 2 October 19081909: 28 April 1909 to 1 October 19091910: 19 February 1910 to 14 November 19101911: 19 April 1911 to 13 October 19111912: 3 February 1912 to 24 November 19121913: 16 February 1913 to 13 December 19131914: 8 April 1914 to 3 September 19141915: 21 February 1915 to 20 November 19151916: 3 June 1916 to 22 October 19161917: 4 May 1917 to 31 October 19171918: 2 April 1918 to 13 September 19181919: 30 January 1919 to 10 October 19191920: 6 March 1920 to 15 September 19201921: 22 January 1921 to 13 September 19211922: 5 February 1922 to 2 October 19221923: 23 February 1923 to 5 October 19231924: 19 April 1924 to 9 November 19241925: 11 March 1925 to 20 October 19251926: 12 April 1926 to 10 October 19261927: 13 January 1927 to 18 September 19271928: 25 January 1928 to 26 October 19281929: 1 January 1929 to 23 October 19291930: 4 April 1930 to 20 November 19301931: 10 February 1931 to 13 October 19311932: 23 April 1932 to 5 November 19321933: 23 January 1933 to 22 October 19331934: 18 February 1934 to 18 October 19341935: 18 February 1935 to 24 September 19351936: 11 March 1936 to 20 October 19361937: 12 February 1937 to 14 October 19371938: 6 May 1938 to 24 September 19381939: 11 May 1939 to 24 October 19391940: 11 February 1940 to 17 October 19401941: 31 January 1941 to 11 October 19411942: 22 February 1942 to 18 October 19421943: 13 January 1943 to 17 October 19431944: 26 January 1944 to 5 October 19441945: 2 February 1945 to 23 October 19451946: 5 April 1946 to 21 November 19461947: 29 April 1947 to 16 September 19471948: 29 April 1948 to 29 November 19481949: 6 February 1949 to 31 October 19491950: 23 February 1950 to 28 October 19501951: 17 June 1951 to 28 November 19511952: 16 March 1952 to 2 November 19521953: 15 January 1953 to 1 October 19531954: 21 January 1954 to 30 September 19541955: 5 February 1955 to 8 November 19551956: 4 April 1956 to 2 November 19561957: 9 January 1957 to 18 October 19571958: 17 May 1958 to 21 October 19581959: 22 January 1959 to 30 October 19591960: 7 March 1960 to 2 October 19601962: 26 January 1962 to 4 October 19621964: 26 April 1964 to 26 October 19641965: 6 February 1965 to 21 October 19651966: 7 May 1966 to 20 October 19661967: 14 March 1967 to 3 October 19671968: 16 May 1968 to 4 October 19681969: 19 March 1969 to 11 November 19691970: 20 January 1970 to 3 October 197019021911192019291938194719561967JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Borio meeting 10 mm (0.39 in).
First to last qualifying date each year at Borio
YearFirst dateLast date
19021902-03-221902-10-03
19031903-01-271903-10-31
19041904-01-191904-11-15
19051905-01-231905-09-29
19061906-01-221906-11-01
19071907-03-231907-10-16
19081908-02-011908-10-02
19091909-04-281909-10-01
19101910-02-191910-11-14
19111911-04-191911-10-13
19121912-02-031912-11-24
19131913-02-161913-12-13
19141914-04-081914-09-03
19151915-02-211915-11-20
19161916-06-031916-10-22
19171917-05-041917-10-31
19181918-04-021918-09-13
19191919-01-301919-10-10
19201920-03-061920-09-15
19211921-01-221921-09-13
19221922-02-051922-10-02
19231923-02-231923-10-05
19241924-04-191924-11-09
19251925-03-111925-10-20
19261926-04-121926-10-10
19271927-01-131927-09-18
19281928-01-251928-10-26
19291929-01-011929-10-23
19301930-04-041930-11-20
19311931-02-101931-10-13
19321932-04-231932-11-05
19331933-01-231933-10-22
19341934-02-181934-10-18
19351935-02-181935-09-24
19361936-03-111936-10-20
19371937-02-121937-10-14
19381938-05-061938-09-24
19391939-05-111939-10-24
19401940-02-111940-10-17
19411941-01-311941-10-11
19421942-02-221942-10-18
19431943-01-131943-10-17
19441944-01-261944-10-05
19451945-02-021945-10-23
19461946-04-051946-11-21
19471947-04-291947-09-16
19481948-04-291948-11-29
19491949-02-061949-10-31
19501950-02-231950-10-28
19511951-06-171951-11-28
19521952-03-161952-11-02
19531953-01-151953-10-01
19541954-01-211954-09-30
19551955-02-051955-11-08
19561956-04-041956-11-02
19571957-01-091957-10-18
19581958-05-171958-10-21
19591959-01-221959-10-30
19601960-03-071960-10-02
19621962-01-261962-10-04
19641964-04-261964-10-26
19651965-02-061965-10-21
19661966-05-071966-10-20
19671967-03-141967-10-03
19681968-05-161968-10-04
19691969-03-191969-11-11
19701970-01-201970-10-03

Every Fixed Threshold

Fixed thresholds at Borio
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain6764191745
25 mm (0.98 in): Days with 25 mm or more rain6740191715
50 mm (1.97 in): Days with 50 mm or more rain671619593
100 mm (3.94 in): Days with 100 mm or more rain34519591
200 mm (7.87 in): Days with 200 mm or more rain2119141

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1902.

Download the Data

  • Data for Borio 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).