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Built 2026-10-19 (19 October 2026)

Forbes 10 NW Threshold Days by Year (USC00323064)

6 fixed thresholds counted per year at Forbes 10 NW (USC00323064): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Forbes 10 NW Thresholds

  • Forbes 10 NW: days with 10 mm (0.39 in) or more of precipitation in 61 years, most in 1998 with 26.
  • Forbes 10 NW: days with 25 mm (0.98 in) or more of precipitation in 61 years, most in 2004 with 9.
  • Forbes 10 NW: days with 10 cm (3.9 in) or more of snowfall in 53 years, most in 2010 with 10.
  • Forbes 10 NW: days with 50 mm (1.97 in) or more of precipitation in 33 years, most in 1964 with 3.
  • 6 fixed thresholds have at least one qualifying day at Forbes 10 NW.
61 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Forbes 10 NW Days per year at Forbes 10 NW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1998. 01020301952: 101953: 111954: 191955: 141956: 141957: 181958: 111959: 131960: 101961: 121962: 201963: 111964: 161965: 191966: 161967: 111968: 211969: 131970: 161971: 181972: 121973: 141974: 131975: 211976: 81977: 201978: 141979: 101980: 161981: 151982: 141983: 111984: 181985: 121986: 191987: 151988: 81989: 131990: 141991: 201992: 131993: 201994: 171995: 191996: 171997: 151998: 261999: 232000: 172001: 142002: 122003: 172004: 162005: 252006: 122007: 212008: 162009: 242010: 162011: 192012: 10195219591966197319801987199420012008
Days per year at Forbes 10 NW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1998.
Days with 10 mm (0.39 in) or more of precipitation per year at Forbes 10 NW
YearDaysDecade average
19521013.8
19531113.8
19541913.8
19551413.8
19561413.8
19571813.8
19581113.8
19591313.8
19601014.9
19611214.9
19622014.9
19631114.9
19641614.9
19651914.9
19661614.9
19671114.9
19682114.9
19691314.9
19701614.6
19711814.6
19721214.6
19731414.6
19741314.6
19752114.6
1976814.6
19772014.6
19781414.6
19791014.6
19801614.1
19811514.1
19821414.1
19831114.1
19841814.1
19851214.1
19861914.1
19871514.1
1988814.1
19891314.1
19901418.4
19912018.4
19921318.4
19932018.4
19941718.4
19951918.4
19961718.4
19971518.4
19982618.4
19992318.4
20001717.4
20011417.4
20021217.4
20031717.4
20041617.4
20052517.4
20061217.4
20072117.4
20081617.4
20092417.4
20101615
20111915
20121015
First to last qualifying date each year at Forbes 10 NW For each year, a bar from the first to the last day at Forbes 10 NW meeting 10 mm (0.39 in). 1952: 17 February 1952 to 17 November 19521953: 9 February 1953 to 17 October 19531954: 25 January 1954 to 26 October 19541955: 4 February 1955 to 21 September 19551956: 1 May 1956 to 2 November 19561957: 19 April 1957 to 1 November 19571958: 27 February 1958 to 9 October 19581959: 17 April 1959 to 8 October 19591960: 18 May 1960 to 25 August 19601961: 23 April 1961 to 10 October 19611962: 13 February 1962 to 16 September 19621963: 3 April 1963 to 20 October 19631964: 23 March 1964 to 27 November 19641965: 28 March 1965 to 19 October 19651966: 19 January 1966 to 14 October 19661967: 13 April 1967 to 7 October 19671968: 18 March 1968 to 16 November 19681969: 14 February 1969 to 22 December 19691970: 24 March 1970 to 23 November 19701971: 18 April 1971 to 7 December 19711972: 12 January 1972 to 5 October 19721973: 3 January 1973 to 11 October 19731974: 11 April 1974 to 31 October 19741975: 23 March 1975 to 31 December 19751976: 12 March 1976 to 5 August 19761977: 24 February 1977 to 17 December 19771978: 2 March 1978 to 23 August 19781979: 19 March 1979 to 6 December 19791980: 6 January 1980 to 16 October 19801981: 31 March 1981 to 5 October 19811982: 19 March 1982 to 10 November 19821983: 5 March 1983 to 19 October 19831984: 4 March 1984 to 15 October 19841985: 3 March 1985 to 25 November 19851986: 9 March 1986 to 6 November 19861987: 27 February 1987 to 30 December 19871988: 19 May 1988 to 26 December 19881989: 24 March 1989 to 27 November 19891990: 26 April 1990 to 17 October 19901991: 11 April 1991 to 28 October 19911992: 5 March 1992 to 1 November 19921993: 6 May 1993 to 25 November 19931994: 25 April 1994 to 17 October 19941995: 26 March 1995 to 8 October 19951996: 2 May 1996 to 19 November 19961997: 4 January 1997 to 12 October 19971998: 17 February 1998 to 9 November 19981999: 28 March 1999 to 14 October 19992000: 26 February 2000 to 30 November 20002001: 7 April 2001 to 10 October 20012002: 27 April 2002 to 18 December 20022003: 16 April 2003 to 15 November 20032004: 27 March 2004 to 30 October 20042005: 11 April 2005 to 30 December 20052006: 11 March 2006 to 30 December 20062007: 28 February 2007 to 7 October 20072008: 6 April 2008 to 12 October 20082009: 10 February 2009 to 25 December 20092010: 6 January 2010 to 31 December 20102011: 15 April 2011 to 9 October 20112012: 13 April 2012 to 12 August 201219521960196819761984199220002008JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Forbes 10 NW meeting 10 mm (0.39 in).
First to last qualifying date each year at Forbes 10 NW
YearFirst dateLast date
19521952-02-171952-11-17
19531953-02-091953-10-17
19541954-01-251954-10-26
19551955-02-041955-09-21
19561956-05-011956-11-02
19571957-04-191957-11-01
19581958-02-271958-10-09
19591959-04-171959-10-08
19601960-05-181960-08-25
19611961-04-231961-10-10
19621962-02-131962-09-16
19631963-04-031963-10-20
19641964-03-231964-11-27
19651965-03-281965-10-19
19661966-01-191966-10-14
19671967-04-131967-10-07
19681968-03-181968-11-16
19691969-02-141969-12-22
19701970-03-241970-11-23
19711971-04-181971-12-07
19721972-01-121972-10-05
19731973-01-031973-10-11
19741974-04-111974-10-31
19751975-03-231975-12-31
19761976-03-121976-08-05
19771977-02-241977-12-17
19781978-03-021978-08-23
19791979-03-191979-12-06
19801980-01-061980-10-16
19811981-03-311981-10-05
19821982-03-191982-11-10
19831983-03-051983-10-19
19841984-03-041984-10-15
19851985-03-031985-11-25
19861986-03-091986-11-06
19871987-02-271987-12-30
19881988-05-191988-12-26
19891989-03-241989-11-27
19901990-04-261990-10-17
19911991-04-111991-10-28
19921992-03-051992-11-01
19931993-05-061993-11-25
19941994-04-251994-10-17
19951995-03-261995-10-08
19961996-05-021996-11-19
19971997-01-041997-10-12
19981998-02-171998-11-09
19991999-03-281999-10-14
20002000-02-262000-11-30
20012001-04-072001-10-10
20022002-04-272002-12-18
20032003-04-162003-11-15
20042004-03-272004-10-30
20052005-04-112005-12-30
20062006-03-112006-12-30
20072007-02-282007-10-07
20082008-04-062008-10-12
20092009-02-102009-12-25
20102010-01-062010-12-31
20112011-04-152011-10-09
20122012-04-132012-08-12

Every Fixed Threshold

Fixed thresholds at Forbes 10 NW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain6126199810
25 mm (0.98 in): Days with 25 mm or more rain61920041
50 mm (1.97 in): Days with 50 mm or more rain33319643
100 mm (3.94 in): Days with 100 mm or more rain4119581
10 cm (3.9 in): Days with 10 cm or more snowfall5310201010
25 cm (9.8 in): Days with 25 cm or more snowfall9219751

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.

Download the Data

  • Data for Forbes 10 NW 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).