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

Break O Day River (Killymoon) Threshold Days by Year (ASN00092057)

4 fixed thresholds counted per year at Break O Day River (Killymoon) (ASN00092057): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Break O Day River (Killymoon) Thresholds

  • Break O Day River (Killymoon): days with 10 mm (0.39 in) or more of precipitation in 16 years, most in 1976 with 31.
  • Break O Day River (Killymoon): days with 25 mm (0.98 in) or more of precipitation in 16 years, most in 1970 with 12.
  • Break O Day River (Killymoon): days with 50 mm (1.97 in) or more of precipitation in 14 years, most in 1970 with 7.
  • Break O Day River (Killymoon): days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1969 with 2.
  • 4 fixed thresholds have at least one qualifying day at Break O Day River (Killymoon).
16 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Break O Day River (Killymoon) Days per year at Break O Day River (Killymoon) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 1976. 0102030401960: 231961: 211962: 201963: 171964: 231965: 141966: 211967: 161968: 71969: 231970: 291972: 111973: 171974: 291975: 241976: 3119601962196419661968197019731975
Days per year at Break O Day River (Killymoon) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 1976.
Days with 10 mm (0.39 in) or more of precipitation per year at Break O Day River (Killymoon)
YearDaysDecade average
19602318.5
19612118.5
19622018.5
19631718.5
19642318.5
19651418.5
19662118.5
19671618.5
1968718.5
19692318.5
19702923.5
19721123.5
19731723.5
19742923.5
19752423.5
19763123.5
First to last qualifying date each year at Break O Day River (Killymoon) For each year, a bar from the first to the last day at Break O Day River (Killymoon) meeting 10 mm (0.39 in). 1960: 23 January 1960 to 15 December 19601961: 1 March 1961 to 19 December 19611962: 25 January 1962 to 12 December 19621963: 6 January 1963 to 29 November 19631964: 7 February 1964 to 24 December 19641965: 11 January 1965 to 2 December 19651966: 5 February 1966 to 15 December 19661967: 7 March 1967 to 13 December 19671968: 5 March 1968 to 13 November 19681969: 5 February 1969 to 30 December 19691970: 3 January 1970 to 31 December 19701972: 10 January 1972 to 25 November 19721973: 6 February 1973 to 22 December 19731974: 22 March 1974 to 28 December 19741975: 9 January 1975 to 18 November 19751976: 8 January 1976 to 24 December 197619601962196419661968197019731975JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Break O Day River (Killymoon) meeting 10 mm (0.39 in).
First to last qualifying date each year at Break O Day River (Killymoon)
YearFirst dateLast date
19601960-01-231960-12-15
19611961-03-011961-12-19
19621962-01-251962-12-12
19631963-01-061963-11-29
19641964-02-071964-12-24
19651965-01-111965-12-02
19661966-02-051966-12-15
19671967-03-071967-12-13
19681968-03-051968-11-13
19691969-02-051969-12-30
19701970-01-031970-12-31
19721972-01-101972-11-25
19731973-02-061973-12-22
19741974-03-221974-12-28
19751975-01-091975-11-18
19761976-01-081976-12-24

Every Fixed Threshold

Fixed thresholds at Break O Day River (Killymoon)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1631197631
25 mm (0.98 in): Days with 25 mm or more rain161219704
50 mm (1.97 in): Days with 50 mm or more rain14719701
100 mm (3.94 in): Days with 100 mm or more rain4219691

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1960.

Download the Data

  • Data for Break O Day River (Killymoon) 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).