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Built 2026-10-19 (19 October 2026)

Ronnoc Downs Threshold Days by Year (ASN00035212)

4 fixed thresholds counted per year at Ronnoc Downs (ASN00035212): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ronnoc Downs Thresholds

  • Ronnoc Downs: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 1998 with 30.
  • Ronnoc Downs: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 1983 with 15.
  • Ronnoc Downs: days with 50 mm (1.97 in) or more of precipitation in 39 years, most in 1983 with 6.
  • Ronnoc Downs: days with 100 mm (3.94 in) or more of precipitation in 11 years, most in 1967 with 1.
  • 4 fixed thresholds have at least one qualifying day at Ronnoc Downs.
48 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Ronnoc Downs Days per year at Ronnoc Downs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1998. 01020301963: 161964: 141965: 131966: 171967: 171968: 161969: 111970: 121971: 171972: 71973: 231974: 251975: 271976: 211977: 201978: 251979: 111980: 201981: 251982: 91983: 261984: 271985: 151986: 211987: 181988: 231989: 201990: 161991: 131992: 141993: 91994: 121995: 201996: 211997: 191998: 301999: 222000: 242001: 162002: 112003: 182004: 162005: 162006: 152007: 262008: 272009: 152019: 91963196819731978198319881993199820032008
Days per year at Ronnoc Downs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1998.
Days with 10 mm (0.39 in) or more of precipitation per year at Ronnoc Downs
YearDaysDecade average
19631614.9
19641414.9
19651314.9
19661714.9
19671714.9
19681614.9
19691114.9
19701218.8
19711718.8
1972718.8
19732318.8
19742518.8
19752718.8
19762118.8
19772018.8
19782518.8
19791118.8
19802020.4
19812520.4
1982920.4
19832620.4
19842720.4
19851520.4
19862120.4
19871820.4
19882320.4
19892020.4
19901617.6
19911317.6
19921417.6
1993917.6
19941217.6
19952017.6
19962117.6
19971917.6
19983017.6
19992217.6
20002418.4
20011618.4
20021118.4
20031818.4
20041618.4
20051618.4
20061518.4
20072618.4
20082718.4
20091518.4
201999
First to last qualifying date each year at Ronnoc Downs For each year, a bar from the first to the last day at Ronnoc Downs meeting 10 mm (0.39 in). 1963: 9 January 1963 to 13 December 19631964: 3 January 1964 to 5 December 19641965: 23 January 1965 to 16 December 19651966: 24 January 1966 to 16 October 19661967: 1 January 1967 to 6 December 19671968: 4 January 1968 to 2 December 19681969: 8 January 1969 to 23 December 19691970: 24 January 1970 to 30 December 19701971: 24 January 1971 to 27 December 19711972: 17 February 1972 to 22 November 19721973: 9 January 1973 to 27 December 19731974: 1 January 1974 to 30 December 19741975: 3 January 1975 to 20 December 19751976: 10 January 1976 to 23 December 19761977: 3 January 1977 to 22 December 19771978: 17 January 1978 to 23 December 19781979: 6 February 1979 to 16 December 19791980: 6 January 1980 to 30 December 19801981: 2 January 1981 to 25 December 19811982: 6 January 1982 to 31 December 19821983: 1 January 1983 to 1 December 19831984: 2 January 1984 to 20 December 19841985: 24 February 1985 to 23 November 19851986: 1 January 1986 to 17 December 19861987: 1 January 1987 to 30 December 19871988: 5 January 1988 to 27 December 19881989: 4 January 1989 to 19 November 19891990: 3 March 1990 to 29 December 19901991: 4 January 1991 to 2 December 19911992: 4 January 1992 to 19 December 19921993: 12 January 1993 to 23 November 19931994: 16 January 1994 to 4 December 19941995: 8 January 1995 to 23 December 19951996: 3 January 1996 to 30 December 19961997: 2 January 1997 to 11 December 19971998: 12 February 1998 to 30 December 19981999: 2 January 1999 to 19 December 19992000: 5 January 2000 to 28 December 20002001: 9 January 2001 to 31 December 20012002: 5 January 2002 to 27 December 20022003: 5 January 2003 to 13 December 20032004: 10 January 2004 to 23 December 20042005: 6 January 2005 to 16 December 20052006: 6 February 2006 to 28 December 20062007: 24 January 2007 to 28 December 20072008: 6 January 2008 to 29 December 20082009: 2 January 2009 to 31 December 20092019: 16 March 2019 to 5 November 201919631969197519811987199319992005JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ronnoc Downs meeting 10 mm (0.39 in).
First to last qualifying date each year at Ronnoc Downs
YearFirst dateLast date
19631963-01-091963-12-13
19641964-01-031964-12-05
19651965-01-231965-12-16
19661966-01-241966-10-16
19671967-01-011967-12-06
19681968-01-041968-12-02
19691969-01-081969-12-23
19701970-01-241970-12-30
19711971-01-241971-12-27
19721972-02-171972-11-22
19731973-01-091973-12-27
19741974-01-011974-12-30
19751975-01-031975-12-20
19761976-01-101976-12-23
19771977-01-031977-12-22
19781978-01-171978-12-23
19791979-02-061979-12-16
19801980-01-061980-12-30
19811981-01-021981-12-25
19821982-01-061982-12-31
19831983-01-011983-12-01
19841984-01-021984-12-20
19851985-02-241985-11-23
19861986-01-011986-12-17
19871987-01-011987-12-30
19881988-01-051988-12-27
19891989-01-041989-11-19
19901990-03-031990-12-29
19911991-01-041991-12-02
19921992-01-041992-12-19
19931993-01-121993-11-23
19941994-01-161994-12-04
19951995-01-081995-12-23
19961996-01-031996-12-30
19971997-01-021997-12-11
19981998-02-121998-12-30
19991999-01-021999-12-19
20002000-01-052000-12-28
20012001-01-092001-12-31
20022002-01-052002-12-27
20032003-01-052003-12-13
20042004-01-102004-12-23
20052005-01-062005-12-16
20062006-02-062006-12-28
20072007-01-242007-12-28
20082008-01-062008-12-29
20092009-01-022009-12-31
20192019-03-162019-11-05

Every Fixed Threshold

Fixed thresholds at Ronnoc Downs
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain483019989
25 mm (0.98 in): Days with 25 mm or more rain481519832
50 mm (1.97 in): Days with 50 mm or more rain39619832
100 mm (3.94 in): Days with 100 mm or more rain11119671

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.

Download the Data

  • Data for Ronnoc Downs 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).