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

Ireland Threshold Days by Year

6 fixed thresholds counted per year at Ireland (USC00464478): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ireland Thresholds

  • Ireland: days with 10 mm (0.39 in) or more of precipitation in 29 years, most in 1950 with 61.
  • Ireland: days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 1945 with 16.
  • Ireland: days with 50 mm (1.97 in) or more of precipitation in 18 years, most in 1970 with 4.
  • Ireland: days with 10 cm (3.9 in) or more of snowfall in 12 years, most in 1965 with 4.
  • 6 fixed thresholds have at least one qualifying day at Ireland.
29 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Ireland Days per year at Ireland with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 61 in 1950. 0204060801937: 481938: 411939: 351940: 401941: 271943: 401944: 361945: 361946: 301947: 271949: 511950: 611951: 511952: 351953: 311954: 381959: 471960: 421961: 531962: 471963: 351964: 401965: 331966: 301967: 401969: 391970: 471973: 461974: 481937194019441947195119541961196419671973
Days per year at Ireland with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 61 in 1950.
Days with 10 mm (0.39 in) or more of precipitation per year at Ireland
YearDaysDecade average
19374841.3
19384141.3
19393541.3
19404035.9
19412735.9
19434035.9
19443635.9
19453635.9
19463035.9
19472735.9
19495135.9
19506143.8
19515143.8
19523543.8
19533143.8
19543843.8
19594743.8
19604239.9
19615339.9
19624739.9
19633539.9
19644039.9
19653339.9
19663039.9
19674039.9
19693939.9
19704747
19734647
19744847
First to last qualifying date each year at Ireland For each year, a bar from the first to the last day at Ireland meeting 10 mm (0.39 in). 1937: 2 January 1937 to 18 December 19371938: 21 January 1938 to 24 November 19381939: 13 January 1939 to 19 December 19391940: 17 January 1940 to 27 November 19401941: 16 January 1941 to 13 December 19411943: 17 January 1943 to 8 November 19431944: 3 January 1944 to 31 December 19441945: 1 January 1945 to 1 December 19451946: 5 February 1946 to 29 December 19461947: 17 January 1947 to 25 November 19471949: 5 January 1949 to 26 December 19491950: 3 January 1950 to 15 December 19501951: 14 January 1951 to 18 December 19511952: 3 January 1952 to 11 December 19521953: 3 January 1953 to 14 December 19531954: 11 January 1954 to 29 October 19541959: 15 January 1959 to 28 December 19591960: 3 January 1960 to 29 December 19601961: 16 January 1961 to 30 December 19611962: 6 January 1962 to 25 December 19621963: 27 January 1963 to 23 December 19631964: 6 January 1964 to 20 December 19641965: 2 January 1965 to 26 November 19651966: 2 January 1966 to 28 December 19661967: 27 January 1967 to 28 December 19671969: 19 January 1969 to 31 December 19691970: 20 January 1970 to 31 December 19701973: 27 January 1973 to 30 December 19731974: 3 January 1974 to 27 December 197419371941194619511959196319671974JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ireland meeting 10 mm (0.39 in).
First to last qualifying date each year at Ireland
YearFirst dateLast date
19371937-01-021937-12-18
19381938-01-211938-11-24
19391939-01-131939-12-19
19401940-01-171940-11-27
19411941-01-161941-12-13
19431943-01-171943-11-08
19441944-01-031944-12-31
19451945-01-011945-12-01
19461946-02-051946-12-29
19471947-01-171947-11-25
19491949-01-051949-12-26
19501950-01-031950-12-15
19511951-01-141951-12-18
19521952-01-031952-12-11
19531953-01-031953-12-14
19541954-01-111954-10-29
19591959-01-151959-12-28
19601960-01-031960-12-29
19611961-01-161961-12-30
19621962-01-061962-12-25
19631963-01-271963-12-23
19641964-01-061964-12-20
19651965-01-021965-11-26
19661966-01-021966-12-28
19671967-01-271967-12-28
19691969-01-191969-12-31
19701970-01-201970-12-31
19731973-01-271973-12-30
19741974-01-031974-12-27

Every Fixed Threshold

Fixed thresholds at Ireland
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2961195048
25 mm (0.98 in): Days with 25 mm or more rain2916194512
50 mm (1.97 in): Days with 50 mm or more rain18419701
100 mm (3.94 in): Days with 100 mm or more rain1119401
10 cm (3.9 in): Days with 10 cm or more snowfall12419652
25 cm (9.8 in): Days with 25 cm or more snowfall2119661

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1937.

Download the Data

  • Data for Ireland 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).