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Built 2026-10-19 (19 October 2026)

Knobs 4 SW Threshold Days by Year (USC00244715)

5 fixed thresholds counted per year at Knobs 4 SW (USC00244715): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Knobs 4 SW Thresholds

  • Knobs 4 SW: days with 10 mm (0.39 in) or more of precipitation in 73 years, most in 1982 with 21.
  • Knobs 4 SW: days with 25 mm (0.98 in) or more of precipitation in 60 years, most in 1971 with 6.
  • Knobs 4 SW: days with 10 cm (3.9 in) or more of snowfall in 26 years, most in 2018 with 4.
  • Knobs 4 SW: days with 50 mm (1.97 in) or more of precipitation in 18 years, most in 1971 with 4.
  • 5 fixed thresholds have at least one qualifying day at Knobs 4 SW.
73 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Knobs 4 SW Days per year at Knobs 4 SW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 21 in 1982. 01020301954: 111955: 71956: 91957: 101958: 61959: 101960: 81961: 81962: 171963: 141964: 101965: 131966: 71967: 101968: 31969: 131970: 111971: 91972: 151973: 101974: 61975: 101976: 41977: 131978: 91979: 81980: 51981: 81982: 211983: 61984: 121985: 81986: 91987: 91988: 51989: 81990: 51991: 101992: 81993: 201994: 161995: 161996: 131997: 151998: 131999: 142000: 102001: 142002: 52003: 102004: 102005: 172006: 132007: 112008: 172009: 102010: 152011: 142012: 72013: 212014: 122015: 152016: 112017: 72018: 92019: 122020: 52021: 72022: 92023: 142024: 52025: 182026: 71954196219701978198619942002201020182026
Days per year at Knobs 4 SW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 21 in 1982.
Days with 10 mm (0.39 in) or more of precipitation per year at Knobs 4 SW
YearDaysDecade average
1954118.8
195578.8
195698.8
1957108.8
195868.8
1959108.8
1960810.3
1961810.3
19621710.3
19631410.3
19641010.3
19651310.3
1966710.3
19671010.3
1968310.3
19691310.3
1970119.5
197199.5
1972159.5
1973109.5
197469.5
1975109.5
197649.5
1977139.5
197899.5
197989.5
198059.1
198189.1
1982219.1
198369.1
1984129.1
198589.1
198699.1
198799.1
198859.1
198989.1
1990513
19911013
1992813
19932013
19941613
19951613
19961313
19971513
19981313
19991413
20001011.7
20011411.7
2002511.7
20031011.7
20041011.7
20051711.7
20061311.7
20071111.7
20081711.7
20091011.7
20101512.3
20111412.3
2012712.3
20132112.3
20141212.3
20151512.3
20161112.3
2017712.3
2018912.3
20191212.3
202059.3
202179.3
202299.3
2023149.3
202459.3
2025189.3
202679.3
First to last qualifying date each year at Knobs 4 SW For each year, a bar from the first to the last day at Knobs 4 SW meeting 10 mm (0.39 in). 1954: 23 May 1954 to 6 September 19541955: 19 April 1955 to 26 July 19551956: 28 May 1956 to 18 August 19561957: 19 April 1957 to 2 November 19571958: 31 May 1958 to 30 August 19581959: 28 May 1959 to 25 September 19591960: 3 May 1960 to 24 July 19601961: 12 May 1961 to 20 September 19611962: 14 May 1962 to 22 October 19621963: 3 April 1963 to 4 September 19631964: 6 May 1964 to 17 October 19641965: 23 February 1965 to 14 September 19651966: 4 March 1966 to 14 August 19661967: 13 April 1967 to 19 September 19671968: 30 May 1968 to 5 November 19681969: 26 April 1969 to 21 July 19691970: 12 April 1970 to 8 November 19701971: 19 April 1971 to 2 October 19711972: 24 March 1972 to 6 October 19721973: 20 April 1973 to 10 October 19731974: 20 May 1974 to 31 October 19741975: 29 April 1975 to 15 August 19751976: 17 April 1976 to 6 August 19761977: 29 March 1977 to 20 November 19771978: 19 April 1978 to 9 November 19781979: 29 May 1979 to 22 August 19791980: 16 April 1980 to 16 October 19801981: 22 May 1981 to 12 October 19811982: 17 March 1982 to 28 October 19821983: 6 March 1983 to 5 December 19831984: 11 April 1984 to 9 November 19841985: 12 April 1985 to 19 September 19851986: 3 April 1986 to 25 September 19861987: 2 May 1987 to 5 September 19871988: 8 May 1988 to 7 July 19881989: 26 April 1989 to 5 November 19891990: 3 June 1990 to 17 October 19901991: 9 April 1991 to 23 October 19911992: 19 April 1992 to 7 October 19921993: 11 March 1993 to 27 July 19931994: 29 January 1994 to 17 November 19941995: 26 February 1995 to 31 December 19951996: 3 May 1996 to 19 September 19961997: 3 January 1997 to 9 November 19971998: 25 February 1998 to 6 October 19981999: 1 April 1999 to 19 November 19992000: 26 February 2000 to 7 November 20002001: 15 March 2001 to 7 September 20012002: 18 April 2002 to 22 August 20022003: 18 March 2003 to 29 October 20032004: 1 March 2004 to 30 October 20042005: 20 April 2005 to 5 October 20052006: 2 April 2006 to 17 October 20062007: 29 March 2007 to 8 August 20072008: 1 May 2008 to 12 October 20082009: 24 March 2009 to 26 December 20092010: 2 April 2010 to 17 November 20102011: 20 February 2011 to 12 August 20112012: 29 February 2012 to 14 August 20122013: 8 April 2013 to 15 October 20132014: 31 March 2014 to 1 October 20142015: 9 April 2015 to 23 October 20152016: 19 April 2016 to 26 December 20162017: 24 March 2017 to 24 September 20172018: 19 March 2018 to 3 November 20182019: 18 May 2019 to 21 October 20192020: 7 May 2020 to 7 September 20202021: 27 May 2021 to 14 October 20212022: 13 April 2022 to 14 December 20222023: 28 May 2023 to 26 October 20232024: 24 May 2024 to 12 August 20242025: 13 April 2025 to 27 October 20252026: 14 April 2026 to 12 August 202619541964197419841994200420142024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Knobs 4 SW meeting 10 mm (0.39 in).
First to last qualifying date each year at Knobs 4 SW
YearFirst dateLast date
19541954-05-231954-09-06
19551955-04-191955-07-26
19561956-05-281956-08-18
19571957-04-191957-11-02
19581958-05-311958-08-30
19591959-05-281959-09-25
19601960-05-031960-07-24
19611961-05-121961-09-20
19621962-05-141962-10-22
19631963-04-031963-09-04
19641964-05-061964-10-17
19651965-02-231965-09-14
19661966-03-041966-08-14
19671967-04-131967-09-19
19681968-05-301968-11-05
19691969-04-261969-07-21
19701970-04-121970-11-08
19711971-04-191971-10-02
19721972-03-241972-10-06
19731973-04-201973-10-10
19741974-05-201974-10-31
19751975-04-291975-08-15
19761976-04-171976-08-06
19771977-03-291977-11-20
19781978-04-191978-11-09
19791979-05-291979-08-22
19801980-04-161980-10-16
19811981-05-221981-10-12
19821982-03-171982-10-28
19831983-03-061983-12-05
19841984-04-111984-11-09
19851985-04-121985-09-19
19861986-04-031986-09-25
19871987-05-021987-09-05
19881988-05-081988-07-07
19891989-04-261989-11-05
19901990-06-031990-10-17
19911991-04-091991-10-23
19921992-04-191992-10-07
19931993-03-111993-07-27
19941994-01-291994-11-17
19951995-02-261995-12-31
19961996-05-031996-09-19
19971997-01-031997-11-09
19981998-02-251998-10-06
19991999-04-011999-11-19
20002000-02-262000-11-07
20012001-03-152001-09-07
20022002-04-182002-08-22
20032003-03-182003-10-29
20042004-03-012004-10-30
20052005-04-202005-10-05
20062006-04-022006-10-17
20072007-03-292007-08-08
20082008-05-012008-10-12
20092009-03-242009-12-26
20102010-04-022010-11-17
20112011-02-202011-08-12
20122012-02-292012-08-14
20132013-04-082013-10-15
20142014-03-312014-10-01
20152015-04-092015-10-23
20162016-04-192016-12-26
20172017-03-242017-09-24
20182018-03-192018-11-03
20192019-05-182019-10-21
20202020-05-072020-09-07
20212021-05-272021-10-14
20222022-04-132022-12-14
20232023-05-282023-10-26
20242024-05-242024-08-12
20252025-04-132025-10-27
20262026-04-142026-08-12

Every Fixed Threshold

Fixed thresholds at Knobs 4 SW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain732119827
25 mm (0.98 in): Days with 25 mm or more rain60619711
50 mm (1.97 in): Days with 50 mm or more rain18419711
10 cm (3.9 in): Days with 10 cm or more snowfall26420181
25 cm (9.8 in): Days with 25 cm or more snowfall5120051

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1954.

Download the Data

  • Data for Knobs 4 SW 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 (2026-10-12).