Built 2026-10-19 (19 October 2026)

Santa Rosalita Threshold Days by Year (MXN00002109)

13 fixed thresholds counted per year at Santa Rosalita (MXN00002109): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Santa Rosalita Thresholds

  • Santa Rosalita: days with 10 mm (0.39 in) or more of precipitation in 17 years, most in 1992 with 11.
  • Santa Rosalita: days with a maximum temperature at or above 30 C (86 F) in 16 years, most in 1991 with 305.
  • Santa Rosalita: days with a maximum temperature at or above 90 F (32.2 C) in 15 years, most in 1990 with 179.
  • Santa Rosalita: nights with a minimum temperature at or above 20 C (68 F) in 13 years, most in 1990 with 64.
  • 13 fixed thresholds have at least one qualifying day at Santa Rosalita.
16 years with a qualifying day
Days at or above 30 C (86 F) per year at Santa Rosalita Days per year at Santa Rosalita with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 305 in 1991. 01002003004001980: 1301981: 671982: 641983: 1461984: 231990: 2711991: 3051992: 2381993: 1911994: 2791995: 2201999: 72001: 12002: 132003: 132004: 719801982198419911993199520012003
Days per year at Santa Rosalita with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 305 in 1991.
Days at or above 30 C (86 F) per year at Santa Rosalita
YearDaysDecade average
198013086
19816786
19826486
198314686
19842386
1990271215.9
1991305215.9
1992238215.9
1993191215.9
1994279215.9
1995220215.9
19997215.9
200118.5
2002138.5
2003138.5
200478.5
First to last qualifying date each year at Santa Rosalita For each year, a bar from the first to the last day at Santa Rosalita meeting 30 C (86 F). 1980: 23 January 1980 to 30 December 19801981: 9 January 1981 to 17 December 19811982: 1 February 1982 to 30 October 19821983: 20 February 1983 to 12 November 19831984: 24 March 1984 to 1 November 19841990: 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 30 December 19931994: 4 January 1994 to 30 December 19941995: 13 January 1995 to 29 December 19951999: 15 July 1999 to 5 November 19992001: 19 March 2001 to 19 March 20012002: 21 February 2002 to 20 November 20022003: 17 January 2003 to 26 October 20032004: 17 February 2004 to 22 September 200419801982198419911993199520012003JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Santa Rosalita meeting 30 C (86 F).
First to last qualifying date each year at Santa Rosalita
YearFirst dateLast date
19801980-01-231980-12-30
19811981-01-091981-12-17
19821982-02-011982-10-30
19831983-02-201983-11-12
19841984-03-241984-11-01
19901990-01-011990-12-31
19911991-01-011991-12-31
19921992-01-011992-12-31
19931993-01-011993-12-30
19941994-01-041994-12-30
19951995-01-131995-12-29
19991999-07-151999-11-05
20012001-03-192001-03-19
20022002-02-212002-11-20
20032003-01-172003-10-26
20042004-02-172004-09-22

Every Fixed Threshold

Fixed thresholds at Santa Rosalita
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days1630519917
35 C (95 F): Days11121199042
40 C (104 F): Days92319906
45 C (113 F): Days3219901
90 F (32.2 C): Days1517919901
100 F (37.8 C): Days945199016
110 F (43.3 C): Days4519901
20 C (68 F): Tropical nights (min1364199010
25 C (77 F): Days with min2319903
10 mm (0.39 in): Days with 10 mm or more rain171119921
25 mm (0.98 in): Days with 25 mm or more rain10619921
50 mm (1.97 in): Days with 50 mm or more rain5319921
100 mm (3.94 in): Days with 100 mm or more rain2119911

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1980.

Download the Data

  • Data for Santa Rosalita 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).