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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

San-Tas Threshold Days by Year (KG000036943)

3 fixed thresholds counted per year at San-Tas (KG000036943): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San-Tas Thresholds

  • San-Tas: days with 10 mm (0.39 in) or more of precipitation in 16 years, most in 1981 with 45.
  • San-Tas: days with 25 mm (0.98 in) or more of precipitation in 16 years, most in 1985 with 9.
  • San-Tas: days with 50 mm (1.97 in) or more of precipitation in 1 years, most in 1977 with 1.
  • 3 fixed thresholds have at least one qualifying day at San-Tas.
16 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at San-Tas Days per year at San-Tas with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 1981. 02040601963: 331964: 291965: 251977: 301978: 221979: 331980: 331981: 451982: 191983: 201984: 241985: 241986: 191988: 251989: 241990: 2419631965197819801982198419861989
Days per year at San-Tas with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 1981.
Days with 10 mm (0.39 in) or more of precipitation per year at San-Tas
YearDaysDecade average
19633329
19642929
19652529
19773028.3
19782228.3
19793328.3
19803325.9
19814525.9
19821925.9
19832025.9
19842425.9
19852425.9
19861925.9
19882525.9
19892425.9
19902424
First to last qualifying date each year at San-Tas For each year, a bar from the first to the last day at San-Tas meeting 10 mm (0.39 in). 1963: 2 March 1963 to 19 December 19631964: 5 February 1964 to 8 December 19641965: 29 January 1965 to 21 December 19651977: 2 January 1977 to 18 December 19771978: 13 January 1978 to 11 December 19781979: 26 January 1979 to 19 December 19791980: 27 March 1980 to 26 November 19801981: 18 January 1981 to 23 December 19811982: 1 March 1982 to 25 November 19821983: 7 April 1983 to 29 October 19831984: 29 March 1984 to 19 December 19841985: 21 January 1985 to 25 November 19851986: 18 January 1986 to 15 November 19861988: 5 February 1988 to 13 November 19881989: 1 March 1989 to 28 October 19891990: 19 May 1990 to 23 November 199019631965197819801982198419861989JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San-Tas meeting 10 mm (0.39 in).
First to last qualifying date each year at San-Tas
YearFirst dateLast date
19631963-03-021963-12-19
19641964-02-051964-12-08
19651965-01-291965-12-21
19771977-01-021977-12-18
19781978-01-131978-12-11
19791979-01-261979-12-19
19801980-03-271980-11-26
19811981-01-181981-12-23
19821982-03-011982-11-25
19831983-04-071983-10-29
19841984-03-291984-12-19
19851985-01-211985-11-25
19861986-01-181986-11-15
19881988-02-051988-11-13
19891989-03-011989-10-28
19901990-05-191990-11-23

Every Fixed Threshold

Fixed thresholds at San-Tas
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1645198124
25 mm (0.98 in): Days with 25 mm or more rain16919853
50 mm (1.97 in): Days with 50 mm or more rain1119771

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.

Download the Data

  • Data for San-Tas 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).