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Built 2026-10-19 (19 October 2026)

Arrino Threshold Days by Year (ASN00008185)

4 fixed thresholds counted per year at Arrino (ASN00008185): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Arrino Thresholds

  • Arrino: days with 10 mm (0.39 in) or more of precipitation in 35 years, most in 1918 with 23.
  • Arrino: days with 25 mm (0.98 in) or more of precipitation in 32 years, most in 1917 with 10.
  • Arrino: days with 50 mm (1.97 in) or more of precipitation in 12 years, most in 1934 with 2.
  • Arrino: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1907 with 1.
  • 4 fixed thresholds have at least one qualifying day at Arrino.
35 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Arrino Days per year at Arrino with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1918. 01020301907: 181908: 121909: 191910: 121911: 81912: 101913: 101914: 11915: 141916: 141917: 181918: 231919: 111920: 161921: 181922: 81923: 131924: 141925: 161927: 91928: 91929: 151930: 111931: 131932: 161933: 131934: 141935: 91936: 81937: 71938: 51939: 221940: 81941: 151942: 17190719111915191919231928193219361940
Days per year at Arrino with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1918.
Days with 10 mm (0.39 in) or more of precipitation per year at Arrino
YearDaysDecade average
19071816.3
19081216.3
19091916.3
19101212.1
1911812.1
19121012.1
19131012.1
1914112.1
19151412.1
19161412.1
19171812.1
19182312.1
19191112.1
19201613.1
19211813.1
1922813.1
19231313.1
19241413.1
19251613.1
1927913.1
1928913.1
19291513.1
19301111.8
19311311.8
19321611.8
19331311.8
19341411.8
1935911.8
1936811.8
1937711.8
1938511.8
19392211.8
1940813.3
19411513.3
19421713.3
First to last qualifying date each year at Arrino For each year, a bar from the first to the last day at Arrino meeting 10 mm (0.39 in). 1907: 26 February 1907 to 23 September 19071908: 23 April 1908 to 9 November 19081909: 6 January 1909 to 13 November 19091910: 19 February 1910 to 3 October 19101911: 20 May 1911 to 31 August 19111912: 20 January 1912 to 26 September 19121913: 10 June 1913 to 25 October 19131914: 26 June 1914 to 26 June 19141915: 10 January 1915 to 10 October 19151916: 21 January 1916 to 5 October 19161917: 18 March 1917 to 19 October 19171918: 17 February 1918 to 21 October 19181919: 17 April 1919 to 2 November 19191920: 12 March 1920 to 11 September 19201921: 18 February 1921 to 23 December 19211922: 16 April 1922 to 25 September 19221923: 23 April 1923 to 12 July 19231924: 19 March 1924 to 16 November 19241925: 23 January 1925 to 24 September 19251927: 13 March 1927 to 19 September 19271928: 22 May 1928 to 31 December 19281929: 12 February 1929 to 14 November 19291930: 8 May 1930 to 9 October 19301931: 4 May 1931 to 4 November 19311932: 29 January 1932 to 29 October 19321933: 6 March 1933 to 30 August 19331934: 8 March 1934 to 23 August 19341935: 5 January 1935 to 29 August 19351936: 29 February 1936 to 20 November 19361937: 18 April 1937 to 17 September 19371938: 19 April 1938 to 21 August 19381939: 20 January 1939 to 20 August 19391940: 6 May 1940 to 11 October 19401941: 26 February 1941 to 14 November 19411942: 6 January 1942 to 15 September 19421907191219171922192819331938JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Arrino meeting 10 mm (0.39 in).
First to last qualifying date each year at Arrino
YearFirst dateLast date
19071907-02-261907-09-23
19081908-04-231908-11-09
19091909-01-061909-11-13
19101910-02-191910-10-03
19111911-05-201911-08-31
19121912-01-201912-09-26
19131913-06-101913-10-25
19141914-06-261914-06-26
19151915-01-101915-10-10
19161916-01-211916-10-05
19171917-03-181917-10-19
19181918-02-171918-10-21
19191919-04-171919-11-02
19201920-03-121920-09-11
19211921-02-181921-12-23
19221922-04-161922-09-25
19231923-04-231923-07-12
19241924-03-191924-11-16
19251925-01-231925-09-24
19271927-03-131927-09-19
19281928-05-221928-12-31
19291929-02-121929-11-14
19301930-05-081930-10-09
19311931-05-041931-11-04
19321932-01-291932-10-29
19331933-03-061933-08-30
19341934-03-081934-08-23
19351935-01-051935-08-29
19361936-02-291936-11-20
19371937-04-181937-09-17
19381938-04-191938-08-21
19391939-01-201939-08-20
19401940-05-061940-10-11
19411941-02-261941-11-14
19421942-01-061942-09-15

Every Fixed Threshold

Fixed thresholds at Arrino
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3523191817
25 mm (0.98 in): Days with 25 mm or more rain321019175
50 mm (1.97 in): Days with 50 mm or more rain12219342
100 mm (3.94 in): Days with 100 mm or more rain2119071

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1907.

Download the Data

  • Data for Arrino 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).