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Built 2026-10-19 (19 October 2026)

Bonnie Rock Threshold Days by Year (ASN00010011)

4 fixed thresholds counted per year at Bonnie Rock (ASN00010011): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bonnie Rock Thresholds

  • Bonnie Rock: days with 10 mm (0.39 in) or more of precipitation in 80 years, most in 1999 with 20.
  • Bonnie Rock: days with 25 mm (0.98 in) or more of precipitation in 52 years, most in 1999 with 5.
  • Bonnie Rock: days with 50 mm (1.97 in) or more of precipitation in 14 years, most in 1999 with 4.
  • Bonnie Rock: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1970 with 1.
  • 4 fixed thresholds have at least one qualifying day at Bonnie Rock.
80 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Bonnie Rock Days per year at Bonnie Rock with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1999. 051015201936: 41937: 41938: 51939: 81940: 41941: 61942: 61943: 81944: 61945: 71946: 71947: 71948: 51949: 61950: 61951: 81953: 91954: 51955: 111956: 31957: 41958: 101959: 81960: 71961: 71962: 61963: 191964: 61965: 71966: 81967: 61968: 81969: 41970: 41971: 71972: 71973: 71974: 111975: 81976: 21977: 51978: 141979: 61980: 81981: 81982: 71983: 71984: 131985: 91986: 61987: 71988: 101989: 81990: 141991: 31992: 131993: 71994: 101995: 141996: 101997: 101999: 202000: 132001: 92002: 42003: 82004: 112005: 72006: 122007: 22008: 102018: 102019: 52020: 112021: 142022: 62023: 42024: 92025: 82026: 91936194419531961196919771985199320022019
Days per year at Bonnie Rock with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1999.
Days with 10 mm (0.39 in) or more of precipitation per year at Bonnie Rock
YearDaysDecade average
193645.3
193745.3
193855.3
193985.3
194046.2
194166.2
194266.2
194386.2
194466.2
194576.2
194676.2
194776.2
194856.2
194966.2
195067.1
195187.1
195397.1
195457.1
1955117.1
195637.1
195747.1
1958107.1
195987.1
196077.8
196177.8
196267.8
1963197.8
196467.8
196577.8
196687.8
196767.8
196887.8
196947.8
197047.1
197177.1
197277.1
197377.1
1974117.1
197587.1
197627.1
197757.1
1978147.1
197967.1
198088.3
198188.3
198278.3
198378.3
1984138.3
198598.3
198668.3
198778.3
1988108.3
198988.3
19901411.2
1991311.2
19921311.2
1993711.2
19941011.2
19951411.2
19961011.2
19971011.2
19992011.2
2000138.4
200198.4
200248.4
200388.4
2004118.4
200578.4
2006128.4
200728.4
2008108.4
2018107.5
201957.5
2020118.7
2021148.7
202268.7
202348.7
202498.7
202588.7
202698.7
First to last qualifying date each year at Bonnie Rock For each year, a bar from the first to the last day at Bonnie Rock meeting 10 mm (0.39 in). 1936: 3 June 1936 to 18 December 19361937: 13 January 1937 to 30 August 19371938: 17 January 1938 to 24 November 19381939: 12 January 1939 to 1 November 19391940: 27 July 1940 to 3 December 19401941: 26 February 1941 to 13 December 19411942: 4 February 1942 to 2 December 19421943: 13 February 1943 to 9 October 19431944: 15 March 1944 to 27 July 19441945: 11 February 1945 to 22 September 19451946: 14 May 1946 to 11 November 19461947: 6 March 1947 to 30 November 19471948: 22 February 1948 to 21 December 19481949: 23 June 1949 to 1 September 19491950: 27 January 1950 to 29 July 19501951: 13 January 1951 to 14 July 19511953: 6 February 1953 to 16 June 19531954: 23 May 1954 to 13 September 19541955: 10 January 1955 to 28 October 19551956: 22 May 1956 to 22 July 19561957: 19 January 1957 to 23 August 19571958: 8 May 1958 to 7 December 19581959: 1 March 1959 to 7 October 19591960: 20 February 1960 to 9 November 19601961: 26 January 1961 to 14 June 19611962: 25 May 1962 to 11 October 19621963: 27 January 1963 to 21 August 19631964: 11 April 1964 to 15 July 19641965: 5 May 1965 to 24 August 19651966: 3 January 1966 to 6 November 19661967: 22 January 1967 to 27 July 19671968: 31 January 1968 to 10 September 19681969: 18 May 1969 to 2 September 19691970: 16 February 1970 to 18 June 19701971: 6 February 1971 to 10 November 19711972: 2 March 1972 to 11 September 19721973: 10 April 1973 to 5 November 19731974: 7 March 1974 to 1 September 19741975: 21 March 1975 to 14 October 19751976: 26 February 1976 to 11 March 19761977: 16 May 1977 to 26 December 19771978: 2 January 1978 to 19 December 19781979: 15 February 1979 to 10 November 19791980: 13 January 1980 to 26 July 19801981: 22 May 1981 to 9 December 19811982: 16 January 1982 to 28 December 19821983: 18 June 1983 to 31 December 19831984: 22 February 1984 to 8 October 19841985: 1 February 1985 to 20 November 19851986: 14 May 1986 to 4 December 19861987: 16 March 1987 to 30 November 19871988: 10 April 1988 to 28 December 19881989: 25 February 1989 to 14 June 19891990: 28 January 1990 to 5 December 19901991: 17 January 1991 to 2 July 19911992: 9 February 1992 to 19 September 19921993: 30 April 1993 to 6 August 19931994: 23 February 1994 to 20 December 19941995: 24 February 1995 to 25 December 19951996: 6 February 1996 to 6 November 19961997: 3 April 1997 to 13 November 19971999: 4 January 1999 to 28 November 19992000: 7 January 2000 to 6 August 20002001: 7 January 2001 to 15 November 20012002: 18 January 2002 to 27 December 20022003: 29 January 2003 to 15 November 20032004: 5 January 2004 to 12 August 20042005: 19 March 2005 to 24 August 20052006: 3 January 2006 to 5 November 20062007: 4 January 2007 to 28 July 20072008: 8 February 2008 to 27 September 20082018: 10 January 2018 to 11 November 20182019: 7 February 2019 to 5 July 20192020: 17 January 2020 to 15 November 20202021: 3 February 2021 to 8 December 20212022: 12 February 2022 to 16 August 20222023: 26 March 2023 to 14 September 20232024: 26 February 2024 to 14 December 20242025: 14 March 2025 to 15 December 20252026: 11 February 2026 to 31 August 202619361946195719671977198719972008JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bonnie Rock meeting 10 mm (0.39 in).
First to last qualifying date each year at Bonnie Rock
YearFirst dateLast date
19361936-06-031936-12-18
19371937-01-131937-08-30
19381938-01-171938-11-24
19391939-01-121939-11-01
19401940-07-271940-12-03
19411941-02-261941-12-13
19421942-02-041942-12-02
19431943-02-131943-10-09
19441944-03-151944-07-27
19451945-02-111945-09-22
19461946-05-141946-11-11
19471947-03-061947-11-30
19481948-02-221948-12-21
19491949-06-231949-09-01
19501950-01-271950-07-29
19511951-01-131951-07-14
19531953-02-061953-06-16
19541954-05-231954-09-13
19551955-01-101955-10-28
19561956-05-221956-07-22
19571957-01-191957-08-23
19581958-05-081958-12-07
19591959-03-011959-10-07
19601960-02-201960-11-09
19611961-01-261961-06-14
19621962-05-251962-10-11
19631963-01-271963-08-21
19641964-04-111964-07-15
19651965-05-051965-08-24
19661966-01-031966-11-06
19671967-01-221967-07-27
19681968-01-311968-09-10
19691969-05-181969-09-02
19701970-02-161970-06-18
19711971-02-061971-11-10
19721972-03-021972-09-11
19731973-04-101973-11-05
19741974-03-071974-09-01
19751975-03-211975-10-14
19761976-02-261976-03-11
19771977-05-161977-12-26
19781978-01-021978-12-19
19791979-02-151979-11-10
19801980-01-131980-07-26
19811981-05-221981-12-09
19821982-01-161982-12-28
19831983-06-181983-12-31
19841984-02-221984-10-08
19851985-02-011985-11-20
19861986-05-141986-12-04
19871987-03-161987-11-30
19881988-04-101988-12-28
19891989-02-251989-06-14
19901990-01-281990-12-05
19911991-01-171991-07-02
19921992-02-091992-09-19
19931993-04-301993-08-06
19941994-02-231994-12-20
19951995-02-241995-12-25
19961996-02-061996-11-06
19971997-04-031997-11-13
19991999-01-041999-11-28
20002000-01-072000-08-06
20012001-01-072001-11-15
20022002-01-182002-12-27
20032003-01-292003-11-15
20042004-01-052004-08-12
20052005-03-192005-08-24
20062006-01-032006-11-05
20072007-01-042007-07-28
20082008-02-082008-09-27
20182018-01-102018-11-11
20192019-02-072019-07-05
20202020-01-172020-11-15
20212021-02-032021-12-08
20222022-02-122022-08-16
20232023-03-262023-09-14
20242024-02-262024-12-14
20252025-03-142025-12-15
20262026-02-112026-08-31

Every Fixed Threshold

Fixed thresholds at Bonnie Rock
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain802019999
25 mm (0.98 in): Days with 25 mm or more rain52519992
50 mm (1.97 in): Days with 50 mm or more rain14419991
100 mm (3.94 in): Days with 100 mm or more rain1119701

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1936.

Download the Data

  • Data for Bonnie Rock 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 (2026-10-17).