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Built 2026-10-19 (19 October 2026)

Castle Hot Springs Threshold Days by Year (USC00021353)

16 fixed thresholds counted per year at Castle Hot Springs (USC00021353): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Castle Hot Springs Thresholds

  • Castle Hot Springs: nights with a minimum temperature at or above 20 C (68 F) in 60 years, most in 1931 with 148.
  • Castle Hot Springs: nights with a minimum temperature at or above 25 C (77 F) in 60 years, most in 1933 with 78.
  • Castle Hot Springs: days with a maximum temperature at or above 30 C (86 F) in 58 years, most in 2017 with 204.
  • Castle Hot Springs: days with a maximum temperature at or above 35 C (95 F) in 58 years, most in 2001 with 144.
  • 16 fixed thresholds have at least one qualifying day at Castle Hot Springs.
58 years with a qualifying day
Days at or above 30 C (86 F) per year at Castle Hot Springs Days per year at Castle Hot Springs with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 204 in 2017. 01002003001929: 1791930: 1601931: 1841932: 1711933: 1601934: 1931935: 1641960: 1751961: 1701962: 1781963: 1801964: 1731965: 1721966: 2001967: 1751969: 1631970: 1631971: 1631972: 1841973: 1771974: 1751975: 1591977: 1661978: 1631980: 1631981: 1621982: 1461983: 1421984: 1591985: 1701986: 1691987: 1811988: 1881989: 1951990: 1851991: 1691992: 1781993: 1711994: 1621995: 1581998: 1362000: 1662001: 1922002: 1762003: 1572004: 1702005: 1522006: 1572007: 1802009: 1682010: 1532011: 1702012: 1982013: 1592014: 1772015: 1672016: 1952017: 2041929193519651972198019861992200120072014
Days per year at Castle Hot Springs with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 204 in 2017.
Days at or above 30 C (86 F) per year at Castle Hot Springs
YearDaysDecade average
1929179179
1930160172
1931184172
1932171172
1933160172
1934193172
1935164172
1960175176.2
1961170176.2
1962178176.2
1963180176.2
1964173176.2
1965172176.2
1966200176.2
1967175176.2
1969163176.2
1970163168.8
1971163168.8
1972184168.8
1973177168.8
1974175168.8
1975159168.8
1977166168.8
1978163168.8
1980163167.5
1981162167.5
1982146167.5
1983142167.5
1984159167.5
1985170167.5
1986169167.5
1987181167.5
1988188167.5
1989195167.5
1990185165.6
1991169165.6
1992178165.6
1993171165.6
1994162165.6
1995158165.6
1998136165.6
2000166168.7
2001192168.7
2002176168.7
2003157168.7
2004170168.7
2005152168.7
2006157168.7
2007180168.7
2009168168.7
2010153177.9
2011170177.9
2012198177.9
2013159177.9
2014177177.9
2015167177.9
2016195177.9
2017204177.9
First to last qualifying date each year at Castle Hot Springs For each year, a bar from the first to the last day at Castle Hot Springs meeting 30 C (86 F). 1929: 5 March 1929 to 22 October 19291930: 5 April 1930 to 26 October 19301931: 21 March 1931 to 7 November 19311932: 1 April 1932 to 16 October 19321933: 3 April 1933 to 28 November 19331934: 11 March 1934 to 11 November 19341935: 12 April 1935 to 13 October 19351960: 19 March 1960 to 27 October 19601961: 3 April 1961 to 25 October 19611962: 5 April 1962 to 7 November 19621963: 5 February 1963 to 11 November 19631964: 30 March 1964 to 4 November 19641965: 31 March 1965 to 8 November 19651966: 8 March 1966 to 3 November 19661967: 17 March 1967 to 15 November 19671969: 30 March 1969 to 26 October 19691970: 3 May 1970 to 1 November 19701971: 19 January 1971 to 4 November 19711972: 6 March 1972 to 16 October 19721973: 26 April 1973 to 11 November 19731974: 17 March 1974 to 20 October 19741975: 9 May 1975 to 6 November 19751977: 7 April 1977 to 24 November 19771978: 27 March 1978 to 31 October 19781980: 9 April 1980 to 10 November 19801981: 24 March 1981 to 23 October 19811982: 28 April 1982 to 6 November 19821983: 17 April 1983 to 23 October 19831984: 12 April 1984 to 5 November 19841985: 2 April 1985 to 30 October 19851986: 24 February 1986 to 30 October 19861987: 2 April 1987 to 28 October 19871988: 23 March 1988 to 6 November 19881989: 25 February 1989 to 11 November 19891990: 19 March 1990 to 16 November 19901991: 4 April 1991 to 8 November 19911992: 11 April 1992 to 23 October 19921993: 20 April 1993 to 26 October 19931994: 15 March 1994 to 29 October 19941995: 5 April 1995 to 17 November 19951998: 21 April 1998 to 19 October 19982000: 14 March 2000 to 20 October 20002001: 21 March 2001 to 19 November 20012002: 21 March 2002 to 22 November 20022003: 31 January 2003 to 25 October 20032004: 8 March 2004 to 15 October 20042005: 6 April 2005 to 1 November 20052006: 13 April 2006 to 19 November 20062007: 12 March 2007 to 19 November 20072009: 2 March 2009 to 10 November 20092010: 17 April 2010 to 3 November 20102011: 31 March 2011 to 1 November 20112012: 31 March 2012 to 23 November 20122013: 14 March 2013 to 12 November 20132014: 7 April 2014 to 8 November 20142015: 17 March 2015 to 28 October 20152016: 11 February 2016 to 15 November 20162017: 10 March 2017 to 26 November 201719291961197019801988199820072016JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Castle Hot Springs meeting 30 C (86 F).
First to last qualifying date each year at Castle Hot Springs
YearFirst dateLast date
19291929-03-051929-10-22
19301930-04-051930-10-26
19311931-03-211931-11-07
19321932-04-011932-10-16
19331933-04-031933-11-28
19341934-03-111934-11-11
19351935-04-121935-10-13
19601960-03-191960-10-27
19611961-04-031961-10-25
19621962-04-051962-11-07
19631963-02-051963-11-11
19641964-03-301964-11-04
19651965-03-311965-11-08
19661966-03-081966-11-03
19671967-03-171967-11-15
19691969-03-301969-10-26
19701970-05-031970-11-01
19711971-01-191971-11-04
19721972-03-061972-10-16
19731973-04-261973-11-11
19741974-03-171974-10-20
19751975-05-091975-11-06
19771977-04-071977-11-24
19781978-03-271978-10-31
19801980-04-091980-11-10
19811981-03-241981-10-23
19821982-04-281982-11-06
19831983-04-171983-10-23
19841984-04-121984-11-05
19851985-04-021985-10-30
19861986-02-241986-10-30
19871987-04-021987-10-28
19881988-03-231988-11-06
19891989-02-251989-11-11
19901990-03-191990-11-16
19911991-04-041991-11-08
19921992-04-111992-10-23
19931993-04-201993-10-26
19941994-03-151994-10-29
19951995-04-051995-11-17
19981998-04-211998-10-19
20002000-03-142000-10-20
20012001-03-212001-11-19
20022002-03-212002-11-22
20032003-01-312003-10-25
20042004-03-082004-10-15
20052005-04-062005-11-01
20062006-04-132006-11-19
20072007-03-122007-11-19
20092009-03-022009-11-10
20102010-04-172010-11-03
20112011-03-312011-11-01
20122012-03-312012-11-23
20132013-03-142013-11-12
20142014-04-072014-11-08
20152015-03-172015-10-28
20162016-02-112016-11-15
20172017-03-102017-11-26

Every Fixed Threshold

Fixed thresholds at Castle Hot Springs
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days582042017204
35 C (95 F): Days581442001134
40 C (104 F): Days5878201778
45 C (113 F): Days2213201713
90 F (32.2 C): Days581802001172
100 F (37.8 C): Days581082001107
110 F (43.3 C): Days4821201721
120 F (48.9 C): Days1119951
0 C (32 F): Frost days (min562119711
20 C (68 F): Tropical nights (min601481931110
25 C (77 F): Days with min6078193357
10 mm (0.39 in): Days with 10 mm or more rain5825196515
25 mm (0.98 in): Days with 25 mm or more rain551119655
50 mm (1.97 in): Days with 50 mm or more rain29419783
100 mm (3.94 in): Days with 100 mm or more rain1119661
10 cm (3.9 in): Days with 10 cm or more snowfall1119851

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1929.

Download the Data

  • Data for Castle Hot Springs 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).