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Built 2026-10-19 (19 October 2026)

Graham Rock Threshold Days by Year (ASN00010560)

3 fixed thresholds counted per year at Graham Rock (ASN00010560): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Graham Rock Thresholds

  • Graham Rock: days with 10 mm (0.39 in) or more of precipitation in 90 years, most in 1999 with 18.
  • Graham Rock: days with 25 mm (0.98 in) or more of precipitation in 69 years, most in 1939 with 4.
  • Graham Rock: days with 50 mm (1.97 in) or more of precipitation in 12 years, most in 1997 with 2.
  • 3 fixed thresholds have at least one qualifying day at Graham Rock.
90 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Graham Rock Days per year at Graham Rock with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 18 in 1999. 051015201934: 51935: 81936: 81937: 81938: 71939: 141940: 31941: 61942: 151943: 91944: 61945: 111946: 121947: 61948: 71949: 101950: 61951: 91952: 91953: 131954: 61955: 101956: 61957: 101958: 101959: 91960: 111961: 31962: 101963: 171964: 121965: 81966: 101967: 91968: 131969: 81970: 91971: 81972: 31973: 151974: 121975: 81976: 81977: 41978: 131979: 91980: 41981: 71982: 101983: 111984: 71985: 51986: 71987: 111988: 71989: 101990: 61991: 81992: 121993: 121994: 101995: 61996: 131997: 131998: 71999: 182000: 72001: 82002: 22003: 132004: 42005: 72006: 92007: 42009: 32010: 22012: 72013: 82014: 82015: 92016: 122017: 142019: 22020: 72021: 122022: 112023: 42024: 112025: 82026: 101934194319521961197019791988199720062017
Days per year at Graham Rock with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 18 in 1999.
Days with 10 mm (0.39 in) or more of precipitation per year at Graham Rock
YearDaysDecade average
193458.3
193588.3
193688.3
193788.3
193878.3
1939148.3
194038.5
194168.5
1942158.5
194398.5
194468.5
1945118.5
1946128.5
194768.5
194878.5
1949108.5
195068.8
195198.8
195298.8
1953138.8
195468.8
1955108.8
195668.8
1957108.8
1958108.8
195998.8
19601110.1
1961310.1
19621010.1
19631710.1
19641210.1
1965810.1
19661010.1
1967910.1
19681310.1
1969810.1
197098.9
197188.9
197238.9
1973158.9
1974128.9
197588.9
197688.9
197748.9
1978138.9
197998.9
198047.9
198177.9
1982107.9
1983117.9
198477.9
198557.9
198677.9
1987117.9
198877.9
1989107.9
1990610.5
1991810.5
19921210.5
19931210.5
19941010.5
1995610.5
19961310.5
19971310.5
1998710.5
19991810.5
200076.3
200186.3
200226.3
2003136.3
200446.3
200576.3
200696.3
200746.3
200936.3
201027.8
201277.8
201387.8
201487.8
201597.8
2016127.8
2017147.8
201927.8
202079
2021129
2022119
202349
2024119
202589
2026109
First to last qualifying date each year at Graham Rock For each year, a bar from the first to the last day at Graham Rock meeting 10 mm (0.39 in). 1934: 9 March 1934 to 4 November 19341935: 17 March 1935 to 22 October 19351936: 7 March 1936 to 28 December 19361937: 4 March 1937 to 13 November 19371938: 17 January 1938 to 2 November 19381939: 20 January 1939 to 2 November 19391940: 12 October 1940 to 3 December 19401941: 4 May 1941 to 10 December 19411942: 15 February 1942 to 2 December 19421943: 31 January 1943 to 19 September 19431944: 18 January 1944 to 11 August 19441945: 26 March 1945 to 22 August 19451946: 14 May 1946 to 10 December 19461947: 6 March 1947 to 26 October 19471948: 30 January 1948 to 28 September 19481949: 2 February 1949 to 5 November 19491950: 6 May 1950 to 23 June 19501951: 13 February 1951 to 10 October 19511952: 20 January 1952 to 18 December 19521953: 14 March 1953 to 25 September 19531954: 23 May 1954 to 2 November 19541955: 6 February 1955 to 24 September 19551956: 7 May 1956 to 14 November 19561957: 18 January 1957 to 5 December 19571958: 26 January 1958 to 22 December 19581959: 26 February 1959 to 27 November 19591960: 2 January 1960 to 17 December 19601961: 27 January 1961 to 1 June 19611962: 14 March 1962 to 29 December 19621963: 26 January 1963 to 18 August 19631964: 19 February 1964 to 5 October 19641965: 16 March 1965 to 28 November 19651966: 2 January 1966 to 23 October 19661967: 23 January 1967 to 22 December 19671968: 27 January 1968 to 10 September 19681969: 19 February 1969 to 4 November 19691970: 16 February 1970 to 25 September 19701971: 13 March 1971 to 26 November 19711972: 31 May 1972 to 27 July 19721973: 8 January 1973 to 5 November 19731974: 4 April 1974 to 19 November 19741975: 2 April 1975 to 10 December 19751976: 28 February 1976 to 11 November 19761977: 16 May 1977 to 31 October 19771978: 5 January 1978 to 3 November 19781979: 3 January 1979 to 13 November 19791980: 25 February 1980 to 27 July 19801981: 13 January 1981 to 6 November 19811982: 3 January 1982 to 4 October 19821983: 31 March 1983 to 31 December 19831984: 28 January 1984 to 15 September 19841985: 9 March 1985 to 13 October 19851986: 22 February 1986 to 9 November 19861987: 26 April 1987 to 24 December 19871988: 3 May 1988 to 3 December 19881989: 26 February 1989 to 3 October 19891990: 28 January 1990 to 13 July 19901991: 17 January 1991 to 25 December 19911992: 13 March 1992 to 20 September 19921993: 20 March 1993 to 16 November 19931994: 24 May 1994 to 16 December 19941995: 21 May 1995 to 18 October 19951996: 8 February 1996 to 7 November 19961997: 8 February 1997 to 13 November 19971998: 10 March 1998 to 28 August 19981999: 6 January 1999 to 13 December 19992000: 15 January 2000 to 11 July 20002001: 19 January 2001 to 16 November 20012002: 18 January 2002 to 11 July 20022003: 17 February 2003 to 30 September 20032004: 13 February 2004 to 21 October 20042005: 1 April 2005 to 17 October 20052006: 13 January 2006 to 18 December 20062007: 5 January 2007 to 17 December 20072009: 22 May 2009 to 13 November 20092010: 22 March 2010 to 9 July 20102012: 1 January 2012 to 25 November 20122013: 14 January 2013 to 7 December 20132014: 7 April 2014 to 28 November 20142015: 15 March 2015 to 5 December 20152016: 19 January 2016 to 12 December 20162017: 30 January 2017 to 12 November 20172019: 17 May 2019 to 12 October 20192020: 28 February 2020 to 17 July 20202021: 8 February 2021 to 27 October 20212022: 12 February 2022 to 30 October 20222023: 8 April 2023 to 14 November 20232024: 25 February 2024 to 9 November 20242025: 14 March 2025 to 6 September 20252026: 10 February 2026 to 28 August 202619341946195819701982199420062021JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Graham Rock meeting 10 mm (0.39 in).
First to last qualifying date each year at Graham Rock
YearFirst dateLast date
19341934-03-091934-11-04
19351935-03-171935-10-22
19361936-03-071936-12-28
19371937-03-041937-11-13
19381938-01-171938-11-02
19391939-01-201939-11-02
19401940-10-121940-12-03
19411941-05-041941-12-10
19421942-02-151942-12-02
19431943-01-311943-09-19
19441944-01-181944-08-11
19451945-03-261945-08-22
19461946-05-141946-12-10
19471947-03-061947-10-26
19481948-01-301948-09-28
19491949-02-021949-11-05
19501950-05-061950-06-23
19511951-02-131951-10-10
19521952-01-201952-12-18
19531953-03-141953-09-25
19541954-05-231954-11-02
19551955-02-061955-09-24
19561956-05-071956-11-14
19571957-01-181957-12-05
19581958-01-261958-12-22
19591959-02-261959-11-27
19601960-01-021960-12-17
19611961-01-271961-06-01
19621962-03-141962-12-29
19631963-01-261963-08-18
19641964-02-191964-10-05
19651965-03-161965-11-28
19661966-01-021966-10-23
19671967-01-231967-12-22
19681968-01-271968-09-10
19691969-02-191969-11-04
19701970-02-161970-09-25
19711971-03-131971-11-26
19721972-05-311972-07-27
19731973-01-081973-11-05
19741974-04-041974-11-19
19751975-04-021975-12-10
19761976-02-281976-11-11
19771977-05-161977-10-31
19781978-01-051978-11-03
19791979-01-031979-11-13
19801980-02-251980-07-27
19811981-01-131981-11-06
19821982-01-031982-10-04
19831983-03-311983-12-31
19841984-01-281984-09-15
19851985-03-091985-10-13
19861986-02-221986-11-09
19871987-04-261987-12-24
19881988-05-031988-12-03
19891989-02-261989-10-03
19901990-01-281990-07-13
19911991-01-171991-12-25
19921992-03-131992-09-20
19931993-03-201993-11-16
19941994-05-241994-12-16
19951995-05-211995-10-18
19961996-02-081996-11-07
19971997-02-081997-11-13
19981998-03-101998-08-28
19991999-01-061999-12-13
20002000-01-152000-07-11
20012001-01-192001-11-16
20022002-01-182002-07-11
20032003-02-172003-09-30
20042004-02-132004-10-21
20052005-04-012005-10-17
20062006-01-132006-12-18
20072007-01-052007-12-17
20092009-05-222009-11-13
20102010-03-222010-07-09
20122012-01-012012-11-25
20132013-01-142013-12-07
20142014-04-072014-11-28
20152015-03-152015-12-05
20162016-01-192016-12-12
20172017-01-302017-11-12
20192019-05-172019-10-12
20202020-02-282020-07-17
20212021-02-082021-10-27
20222022-02-122022-10-30
20232023-04-082023-11-14
20242024-02-252024-11-09
20252025-03-142025-09-06
20262026-02-102026-08-28

Every Fixed Threshold

Fixed thresholds at Graham Rock
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain9018199910
25 mm (0.98 in): Days with 25 mm or more rain69419391
50 mm (1.97 in): Days with 50 mm or more rain12219971

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1934.

Download the Data

  • Data for Graham 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).