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

Palana Threshold Days by Year (IN019070401)

5 fixed thresholds counted per year at Palana (IN019070401): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Palana Thresholds

  • Palana: days with 10 mm (0.39 in) or more of precipitation in 62 years, most in 1917 with 30.
  • Palana: days with 25 mm (0.98 in) or more of precipitation in 56 years, most in 1917 with 9.
  • Palana: days with 50 mm (1.97 in) or more of precipitation in 22 years, most in 1936 with 5.
  • Palana: days with 100 mm (3.94 in) or more of precipitation in 7 years, most in 1936 with 4.
  • 5 fixed thresholds have at least one qualifying day at Palana.
62 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Palana Days per year at Palana with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1917. 01020301906: 101907: 101908: 181909: 151910: 71911: 31912: 81913: 81914: 71915: 61916: 131917: 301918: 31919: 81920: 71921: 61922: 71923: 121924: 91925: 41926: 81927: 91928: 111929: 81930: 91931: 131932: 71933: 101934: 81935: 81936: 111937: 91938: 61939: 61940: 81941: 51942: 101943: 81944: 161945: 101946: 61947: 101948: 21949: 91950: 91951: 51952: 61953: 71954: 71955: 91956: 71957: 71958: 61959: 121960: 61961: 121962: 61964: 91965: 51966: 41967: 61969: 3190619131920192719341941194819551962
Days per year at Palana with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1917.
Days with 10 mm (0.39 in) or more of precipitation per year at Palana
YearDaysDecade average
19061013.3
19071013.3
19081813.3
19091513.3
191079.3
191139.3
191289.3
191389.3
191479.3
191569.3
1916139.3
1917309.3
191839.3
191989.3
192078.1
192168.1
192278.1
1923128.1
192498.1
192548.1
192688.1
192798.1
1928118.1
192988.1
193098.7
1931138.7
193278.7
1933108.7
193488.7
193588.7
1936118.7
193798.7
193868.7
193968.7
194088.4
194158.4
1942108.4
194388.4
1944168.4
1945108.4
194668.4
1947108.4
194828.4
194998.4
195097.5
195157.5
195267.5
195377.5
195477.5
195597.5
195677.5
195777.5
195867.5
1959127.5
196066.4
1961126.4
196266.4
196496.4
196556.4
196646.4
196766.4
196936.4
First to last qualifying date each year at Palana For each year, a bar from the first to the last day at Palana meeting 10 mm (0.39 in). 1906: 15 February 1906 to 14 September 19061907: 18 February 1907 to 24 August 19071908: 10 January 1908 to 3 September 19081909: 23 February 1909 to 13 December 19091910: 17 June 1910 to 29 August 19101911: 10 March 1911 to 3 September 19111912: 9 January 1912 to 6 August 19121913: 16 May 1913 to 4 December 19131914: 5 April 1914 to 9 September 19141915: 23 January 1915 to 4 October 19151916: 8 May 1916 to 4 October 19161917: 19 April 1917 to 26 October 19171918: 19 August 1918 to 30 September 19181919: 28 January 1919 to 18 September 19191920: 26 May 1920 to 4 August 19201921: 20 June 1921 to 14 August 19211922: 18 July 1922 to 13 December 19221923: 19 May 1923 to 19 September 19231924: 22 July 1924 to 8 December 19241925: 12 June 1925 to 7 August 19251926: 2 July 1926 to 16 September 19261927: 13 May 1927 to 18 December 19271928: 22 March 1928 to 24 September 19281929: 25 May 1929 to 19 August 19291930: 17 May 1930 to 9 August 19301931: 29 May 1931 to 29 August 19311932: 4 July 1932 to 7 August 19321933: 24 February 1933 to 30 August 19331934: 19 June 1934 to 7 September 19341935: 6 April 1935 to 31 August 19351936: 20 June 1936 to 7 September 19361937: 12 February 1937 to 12 September 19371938: 23 June 1938 to 29 August 19381939: 22 February 1939 to 31 August 19391940: 5 June 1940 to 20 August 19401941: 10 June 1941 to 16 September 19411942: 19 February 1942 to 7 September 19421943: 16 June 1943 to 3 September 19431944: 23 January 1944 to 29 August 19441945: 24 April 1945 to 24 September 19451946: 28 June 1946 to 26 August 19461947: 11 August 1947 to 22 October 19471948: 28 July 1948 to 12 August 19481949: 7 July 1949 to 30 September 19491950: 11 July 1950 to 29 September 19501951: 25 April 1951 to 25 November 19511952: 28 June 1952 to 8 August 19521953: 8 July 1953 to 30 August 19531954: 16 June 1954 to 24 September 19541955: 12 April 1955 to 8 September 19551956: 4 July 1956 to 2 October 19561957: 9 January 1957 to 26 August 19571958: 2 July 1958 to 26 September 19581959: 1 June 1959 to 10 September 19591960: 16 June 1960 to 30 December 19601961: 19 May 1961 to 12 September 19611962: 12 July 1962 to 20 September 19621964: 4 July 1964 to 29 August 19641965: 19 July 1965 to 17 October 19651966: 3 August 1966 to 8 September 19661967: 24 March 1967 to 25 October 19671969: 17 July 1969 to 14 September 196919061914192219301938194619541962JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Palana meeting 10 mm (0.39 in).
First to last qualifying date each year at Palana
YearFirst dateLast date
19061906-02-151906-09-14
19071907-02-181907-08-24
19081908-01-101908-09-03
19091909-02-231909-12-13
19101910-06-171910-08-29
19111911-03-101911-09-03
19121912-01-091912-08-06
19131913-05-161913-12-04
19141914-04-051914-09-09
19151915-01-231915-10-04
19161916-05-081916-10-04
19171917-04-191917-10-26
19181918-08-191918-09-30
19191919-01-281919-09-18
19201920-05-261920-08-04
19211921-06-201921-08-14
19221922-07-181922-12-13
19231923-05-191923-09-19
19241924-07-221924-12-08
19251925-06-121925-08-07
19261926-07-021926-09-16
19271927-05-131927-12-18
19281928-03-221928-09-24
19291929-05-251929-08-19
19301930-05-171930-08-09
19311931-05-291931-08-29
19321932-07-041932-08-07
19331933-02-241933-08-30
19341934-06-191934-09-07
19351935-04-061935-08-31
19361936-06-201936-09-07
19371937-02-121937-09-12
19381938-06-231938-08-29
19391939-02-221939-08-31
19401940-06-051940-08-20
19411941-06-101941-09-16
19421942-02-191942-09-07
19431943-06-161943-09-03
19441944-01-231944-08-29
19451945-04-241945-09-24
19461946-06-281946-08-26
19471947-08-111947-10-22
19481948-07-281948-08-12
19491949-07-071949-09-30
19501950-07-111950-09-29
19511951-04-251951-11-25
19521952-06-281952-08-08
19531953-07-081953-08-30
19541954-06-161954-09-24
19551955-04-121955-09-08
19561956-07-041956-10-02
19571957-01-091957-08-26
19581958-07-021958-09-26
19591959-06-011959-09-10
19601960-06-161960-12-30
19611961-05-191961-09-12
19621962-07-121962-09-20
19641964-07-041964-08-29
19651965-07-191965-10-17
19661966-08-031966-09-08
19671967-03-241967-10-25
19691969-07-171969-09-14

Every Fixed Threshold

Fixed thresholds at Palana
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain623019173
25 mm (0.98 in): Days with 25 mm or more rain56919173
50 mm (1.97 in): Days with 50 mm or more rain22519361
100 mm (3.94 in): Days with 100 mm or more rain7419361
200 mm (7.87 in): Days with 200 mm or more rain1119331

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1906.

Download the Data

  • Data for Palana 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).