Built 2026-10-19 (19 October 2026)

Castolon Threshold Days by Year (USC00411524)

16 fixed thresholds counted per year at Castolon (USC00411524): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Castolon Thresholds

  • Castolon: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1990 with 16.
  • Castolon: days with a maximum temperature at or above 30 C (86 F) in 36 years, most in 2025 with 250.
  • Castolon: days with a maximum temperature at or above 35 C (95 F) in 36 years, most in 2011 with 197.
  • Castolon: days with a maximum temperature at or above 40 C (104 F) in 36 years, most in 2011 with 116.
  • 16 fixed thresholds have at least one qualifying day at Castolon.
36 years with a qualifying day
Days at or above 30 C (86 F) per year at Castolon Days per year at Castolon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 250 in 2025. 01002003001962: 2021981: 1961982: 2181983: 2061984: 2171985: 2201986: 2141987: 2021988: 2281989: 2171990: 1701991: 2061992: 2001993: 2091994: 2271995: 2251996: 2251997: 1991998: 2021999: 2312000: 2192002: 2082004: 1972005: 1882008: 1982010: 2002011: 2472012: 2192019: 2232020: 2202021: 2272022: 2052023: 2202024: 2452025: 2502026: 215196219841988199219962000200820192023
Days per year at Castolon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 250 in 2025.
Days at or above 30 C (86 F) per year at Castolon
YearDaysDecade average
1962202202
1981196213.1
1982218213.1
1983206213.1
1984217213.1
1985220213.1
1986214213.1
1987202213.1
1988228213.1
1989217213.1
1990170209.4
1991206209.4
1992200209.4
1993209209.4
1994227209.4
1995225209.4
1996225209.4
1997199209.4
1998202209.4
1999231209.4
2000219202
2002208202
2004197202
2005188202
2008198202
2010200222.3
2011247222.3
2012219222.3
2019223222.3
2020220226
2021227226
2022205226
2023220226
2024245226
2025250226
2026215226
First to last qualifying date each year at Castolon For each year, a bar from the first to the last day at Castolon meeting 30 C (86 F). 1962: 9 February 1962 to 15 November 19621981: 19 February 1981 to 22 December 19811982: 3 January 1982 to 2 December 19821983: 20 February 1983 to 6 December 19831984: 11 February 1984 to 16 November 19841985: 17 February 1985 to 27 November 19851986: 30 January 1986 to 19 November 19861987: 14 February 1987 to 25 December 19871988: 4 February 1988 to 27 December 19881989: 13 February 1989 to 28 October 19891990: 7 March 1990 to 20 November 19901991: 5 March 1991 to 19 November 19911992: 4 March 1992 to 12 November 19921993: 4 January 1993 to 13 December 19931994: 8 February 1994 to 28 November 19941995: 14 February 1995 to 15 December 19951996: 18 January 1996 to 24 November 19961997: 4 January 1997 to 28 November 19971998: 25 February 1998 to 10 November 19981999: 21 January 1999 to 4 December 19992000: 2 January 2000 to 1 November 20002002: 28 January 2002 to 18 December 20022004: 4 January 2004 to 29 November 20042005: 5 January 2005 to 28 November 20052008: 4 February 2008 to 9 December 20082010: 20 January 2010 to 29 November 20102011: 16 February 2011 to 22 November 20112012: 17 January 2012 to 20 December 20122019: 6 February 2019 to 16 December 20192020: 10 January 2020 to 25 November 20202021: 4 February 2021 to 27 December 20212022: 22 February 2022 to 30 November 20222023: 7 February 2023 to 9 December 20232024: 3 February 2024 to 28 November 20242025: 4 February 2025 to 29 December 20252026: 14 February 2026 to 14 October 202619621985199019952000201020212026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Castolon meeting 30 C (86 F).
First to last qualifying date each year at Castolon
YearFirst dateLast date
19621962-02-091962-11-15
19811981-02-191981-12-22
19821982-01-031982-12-02
19831983-02-201983-12-06
19841984-02-111984-11-16
19851985-02-171985-11-27
19861986-01-301986-11-19
19871987-02-141987-12-25
19881988-02-041988-12-27
19891989-02-131989-10-28
19901990-03-071990-11-20
19911991-03-051991-11-19
19921992-03-041992-11-12
19931993-01-041993-12-13
19941994-02-081994-11-28
19951995-02-141995-12-15
19961996-01-181996-11-24
19971997-01-041997-11-28
19981998-02-251998-11-10
19991999-01-211999-12-04
20002000-01-022000-11-01
20022002-01-282002-12-18
20042004-01-042004-11-29
20052005-01-052005-11-28
20082008-02-042008-12-09
20102010-01-202010-11-29
20112011-02-162011-11-22
20122012-01-172012-12-20
20192019-02-062019-12-16
20202020-01-102020-11-25
20212021-02-042021-12-27
20222022-02-222022-11-30
20232023-02-072023-12-09
20242024-02-032024-11-28
20252025-02-042025-12-29
20262026-02-142026-10-14

Every Fixed Threshold

Fixed thresholds at Castolon
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days362502025215
35 C (95 F): Days361972011170
40 C (104 F): Days36116201171
45 C (113 F): Days211020111
90 F (32.2 C): Days362322011204
100 F (37.8 C): Days361472011126
110 F (43.3 C): Days354420115
0 C (32 F): Ice days (max3219852
0 C (32 F): Frost days (min334119835
-10 C (14 F): Days with min6319622
20 C (68 F): Tropical nights (min331702025159
25 C (77 F): Days with min3377201181
10 mm (0.39 in): Days with 10 mm or more rain411619905
25 mm (0.98 in): Days with 25 mm or more rain33620042
50 mm (1.97 in): Days with 50 mm or more rain4119861
100 mm (3.94 in): Days with 100 mm or more rain1119861

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1962.

Download the Data

  • Data for Castolon 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).