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Built 2026-10-19 (19 October 2026)

San Carlos I Threshold Days by Year (MXN00016107)

14 fixed thresholds counted per year at San Carlos I (MXN00016107): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Carlos I Thresholds

  • San Carlos I: days with 10 mm (0.39 in) or more of precipitation in 29 years, most in 1998 with 54.
  • San Carlos I: days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 1998 with 29.
  • San Carlos I: days with 50 mm (1.97 in) or more of precipitation in 26 years, most in 1998 with 9.
  • San Carlos I: days with a maximum temperature at or above 30 C (86 F) in 20 years, most in 1979 with 362.
  • 14 fixed thresholds have at least one qualifying day at San Carlos I.
20 years with a qualifying day
Days at or above 30 C (86 F) per year at San Carlos I Days per year at San Carlos I with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 362 in 1979. 01002003004001979: 3621980: 3341981: 3161982: 3581983: 3341984: 3191985: 2961986: 3361987: 3111988: 3391989: 3161990: 3171991: 3091992: 2911993: 3321994: 3371995: 3251996: 3531997: 3581998: 3491979198119831985198719891991199319951997
Days per year at San Carlos I with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 362 in 1979.
Days at or above 30 C (86 F) per year at San Carlos I
YearDaysDecade average
1979362362
1980334325.9
1981316325.9
1982358325.9
1983334325.9
1984319325.9
1985296325.9
1986336325.9
1987311325.9
1988339325.9
1989316325.9
1990317330.1
1991309330.1
1992291330.1
1993332330.1
1994337330.1
1995325330.1
1996353330.1
1997358330.1
1998349330.1
First to last qualifying date each year at San Carlos I For each year, a bar from the first to the last day at San Carlos I meeting 30 C (86 F). 1979: 1 January 1979 to 31 December 19791980: 1 January 1980 to 31 December 19801981: 1 January 1981 to 31 December 19811982: 1 January 1982 to 31 December 19821983: 2 January 1983 to 31 December 19831984: 1 January 1984 to 31 December 19841985: 1 January 1985 to 31 December 19851986: 1 January 1986 to 31 December 19861987: 4 February 1987 to 31 December 19871988: 1 January 1988 to 31 December 19881989: 1 January 1989 to 31 December 19891990: 1 January 1990 to 31 December 19901991: 1 January 1991 to 31 December 19911992: 1 January 1992 to 31 December 19921993: 1 January 1993 to 31 December 19931994: 1 January 1994 to 31 December 19941995: 1 January 1995 to 31 December 19951996: 1 January 1996 to 31 December 19961997: 1 January 1997 to 31 December 19971998: 1 January 1998 to 31 December 19981979198219851988199119941997JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Carlos I meeting 30 C (86 F).
First to last qualifying date each year at San Carlos I
YearFirst dateLast date
19791979-01-011979-12-31
19801980-01-011980-12-31
19811981-01-011981-12-31
19821982-01-011982-12-31
19831983-01-021983-12-31
19841984-01-011984-12-31
19851985-01-011985-12-31
19861986-01-011986-12-31
19871987-02-041987-12-31
19881988-01-011988-12-31
19891989-01-011989-12-31
19901990-01-011990-12-31
19911991-01-011991-12-31
19921992-01-011992-12-31
19931993-01-011993-12-31
19941994-01-011994-12-31
19951995-01-011995-12-31
19961996-01-011996-12-31
19971997-01-011997-12-31
19981998-01-011998-12-31

Every Fixed Threshold

Fixed thresholds at San Carlos I
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days203621979349
35 C (95 F): Days201731997142
40 C (104 F): Days2061199861
45 C (113 F): Days1119981
90 F (32.2 C): Days203231997240
100 F (37.8 C): Days201021998102
110 F (43.3 C): Days1119981
120 F (48.9 C): Days1119981
20 C (68 F): Tropical nights (min20177198029
25 C (77 F): Days with min11419811
10 mm (0.39 in): Days with 10 mm or more rain2954199854
25 mm (0.98 in): Days with 25 mm or more rain2929199829
50 mm (1.97 in): Days with 50 mm or more rain26919989
100 mm (3.94 in): Days with 100 mm or more rain2119881

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1979.

Download the Data

  • Data for San Carlos I 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).