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Built 2026-10-18 (18 October 2026)

Arumpo Threshold Days by Year

3 fixed thresholds counted per year at Arumpo (ASN00047002): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Arumpo Thresholds

  • Arumpo: days with 10 mm (0.39 in) or more of precipitation in 71 years, most in 1956 with 15.
  • Arumpo: days with 25 mm (0.98 in) or more of precipitation in 56 years, most in 1886 with 6.
  • Arumpo: days with 50 mm (1.97 in) or more of precipitation in 8 years, most in 1939 with 2.
  • 3 fixed thresholds have at least one qualifying day at Arumpo.
71 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Arumpo Days per year at Arumpo with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 15 in 1956. 0510151880: 81881: 121882: 81883: 61884: 21885: 51886: 101888: 31889: 121890: 91891: 101892: 81894: 131895: 41896: 51897: 41898: 71899: 91900: 91901: 41902: 31903: 91904: 81905: 71908: 51910: 81911: 111912: 71913: 31914: 51915: 51916: 71918: 91919: 51921: 141922: 51923: 61928: 41929: 31930: 61931: 91932: 71933: 41935: 11936: 91937: 71938: 21939: 91940: 21941: 51942: 51943: 21944: 61945: 61946: 141950: 81951: 91952: 91953: 71954: 81955: 111956: 151957: 61958: 111959: 41960: 81961: 61962: 71963: 81964: 71965: 11188018891898190819181931194019511959
Days per year at Arumpo with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 15 in 1956.
Days with 10 mm (0.39 in) or more of precipitation per year at Arumpo
YearDaysDecade average
188087.3
1881127.3
188287.3
188367.3
188427.3
188557.3
1886107.3
188837.3
1889127.3
189097.7
1891107.7
189287.7
1894137.7
189547.7
189657.7
189747.7
189877.7
189997.7
190096.4
190146.4
190236.4
190396.4
190486.4
190576.4
190856.4
191086.7
1911116.7
191276.7
191336.7
191456.7
191556.7
191676.7
191896.7
191956.7
1921146.4
192256.4
192366.4
192846.4
192936.4
193066
193196
193276
193346
193516
193696
193776
193826
193996
194025.7
194155.7
194255.7
194325.7
194465.7
194565.7
1946145.7
195088.8
195198.8
195298.8
195378.8
195488.8
1955118.8
1956158.8
195768.8
1958118.8
195948.8
196087.8
196167.8
196277.8
196387.8
196477.8
1965117.8
First to last qualifying date each year at Arumpo For each year, a bar from the first to the last day at Arumpo meeting 10 mm (0.39 in). 1880: 12 January 1880 to 21 October 18801881: 11 January 1881 to 20 November 18811882: 26 April 1882 to 30 December 18821883: 3 February 1883 to 13 November 18831884: 10 March 1884 to 9 May 18841885: 16 February 1885 to 21 December 18851886: 7 January 1886 to 7 December 18861888: 21 September 1888 to 31 December 18881889: 2 January 1889 to 15 November 18891890: 30 March 1890 to 14 November 18901891: 10 January 1891 to 2 December 18911892: 28 May 1892 to 9 November 18921894: 26 January 1894 to 28 December 18941895: 4 January 1895 to 20 August 18951896: 20 February 1896 to 28 December 18961897: 8 January 1897 to 19 July 18971898: 11 February 1898 to 22 December 18981899: 26 February 1899 to 6 November 18991900: 19 January 1900 to 30 August 19001901: 20 February 1901 to 12 October 19011902: 22 August 1902 to 16 December 19021903: 5 March 1903 to 26 December 19031904: 3 January 1904 to 2 November 19041905: 3 January 1905 to 6 August 19051908: 10 June 1908 to 7 October 19081910: 13 January 1910 to 5 November 19101911: 4 February 1911 to 12 December 19111912: 25 February 1912 to 17 November 19121913: 26 March 1913 to 28 October 19131914: 9 March 1914 to 23 December 19141915: 14 May 1915 to 7 December 19151916: 7 June 1916 to 24 November 19161918: 29 January 1918 to 7 October 19181919: 9 February 1919 to 28 December 19191921: 20 February 1921 to 10 September 19211922: 19 April 1922 to 6 December 19221923: 3 June 1923 to 27 December 19231928: 13 February 1928 to 4 April 19281929: 22 February 1929 to 27 December 19291930: 24 April 1930 to 7 December 19301931: 1 April 1931 to 17 October 19311932: 8 February 1932 to 16 December 19321933: 6 April 1933 to 5 December 19331935: 2 April 1935 to 2 April 19351936: 6 January 1936 to 13 December 19361937: 19 January 1937 to 17 October 19371938: 23 October 1938 to 24 October 19381939: 17 February 1939 to 16 November 19391940: 6 January 1940 to 21 September 19401941: 4 January 1941 to 5 November 19411942: 3 May 1942 to 29 October 19421943: 13 April 1943 to 19 May 19431944: 9 April 1944 to 12 December 19441945: 18 February 1945 to 27 December 19451946: 17 January 1946 to 28 December 19461950: 3 February 1950 to 17 October 19501951: 12 January 1951 to 3 October 19511952: 20 March 1952 to 27 October 19521953: 6 January 1953 to 15 October 19531954: 29 April 1954 to 11 December 19541955: 16 February 1955 to 25 November 19551956: 19 January 1956 to 18 October 19561957: 7 February 1957 to 31 December 19571958: 31 January 1958 to 30 November 19581959: 26 January 1959 to 6 October 19591960: 8 January 1960 to 21 November 19601961: 27 March 1961 to 18 November 19611962: 17 January 1962 to 29 December 19621963: 14 January 1963 to 26 October 19631964: 14 April 1964 to 20 November 19641965: 31 May 1965 to 1 December 196518801890190019121923193719461958JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Arumpo meeting 10 mm (0.39 in).
First to last qualifying date each year at Arumpo
YearFirst dateLast date
18801880-01-121880-10-21
18811881-01-111881-11-20
18821882-04-261882-12-30
18831883-02-031883-11-13
18841884-03-101884-05-09
18851885-02-161885-12-21
18861886-01-071886-12-07
18881888-09-211888-12-31
18891889-01-021889-11-15
18901890-03-301890-11-14
18911891-01-101891-12-02
18921892-05-281892-11-09
18941894-01-261894-12-28
18951895-01-041895-08-20
18961896-02-201896-12-28
18971897-01-081897-07-19
18981898-02-111898-12-22
18991899-02-261899-11-06
19001900-01-191900-08-30
19011901-02-201901-10-12
19021902-08-221902-12-16
19031903-03-051903-12-26
19041904-01-031904-11-02
19051905-01-031905-08-06
19081908-06-101908-10-07
19101910-01-131910-11-05
19111911-02-041911-12-12
19121912-02-251912-11-17
19131913-03-261913-10-28
19141914-03-091914-12-23
19151915-05-141915-12-07
19161916-06-071916-11-24
19181918-01-291918-10-07
19191919-02-091919-12-28
19211921-02-201921-09-10
19221922-04-191922-12-06
19231923-06-031923-12-27
19281928-02-131928-04-04
19291929-02-221929-12-27
19301930-04-241930-12-07
19311931-04-011931-10-17
19321932-02-081932-12-16
19331933-04-061933-12-05
19351935-04-021935-04-02
19361936-01-061936-12-13
19371937-01-191937-10-17
19381938-10-231938-10-24
19391939-02-171939-11-16
19401940-01-061940-09-21
19411941-01-041941-11-05
19421942-05-031942-10-29
19431943-04-131943-05-19
19441944-04-091944-12-12
19451945-02-181945-12-27
19461946-01-171946-12-28
19501950-02-031950-10-17
19511951-01-121951-10-03
19521952-03-201952-10-27
19531953-01-061953-10-15
19541954-04-291954-12-11
19551955-02-161955-11-25
19561956-01-191956-10-18
19571957-02-071957-12-31
19581958-01-311958-11-30
19591959-01-261959-10-06
19601960-01-081960-11-21
19611961-03-271961-11-18
19621962-01-171962-12-29
19631963-01-141963-10-26
19641964-04-141964-11-20
19651965-05-311965-12-01

Every Fixed Threshold

Fixed thresholds at Arumpo
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain7115195611
25 mm (0.98 in): Days with 25 mm or more rain56618862
50 mm (1.97 in): Days with 50 mm or more rain8219391

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1880.

Download the Data

  • Data for Arumpo 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).