Built 2026-10-19 (19 October 2026)

Santa Rosa Threshold Days by Year (MXN00014136)

14 fixed thresholds counted per year at Santa Rosa (MXN00014136): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Santa Rosa Thresholds

  • Santa Rosa: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 1958 with 47.
  • Santa Rosa: days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 1985 with 16.
  • Santa Rosa: days with a maximum temperature at or above 30 C (86 F) in 42 years, most in 1994 with 360.
  • Santa Rosa: days with a maximum temperature at or above 35 C (95 F) in 42 years, most in 1994 with 305.
  • 14 fixed thresholds have at least one qualifying day at Santa Rosa.
42 years with a qualifying day
Days at or above 30 C (86 F) per year at Santa Rosa Days per year at Santa Rosa with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 360 in 1994. 01002003004001956: 3511957: 3281958: 3161959: 3331960: 3421961: 3261962: 3451964: 3231965: 3371966: 3251967: 3191968: 3351969: 3411970: 3461971: 3461972: 3421973: 3331974: 3451975: 3431976: 3171977: 3421978: 3161979: 3451980: 3411981: 3431982: 3381983: 3301984: 3461985: 3371986: 3511987: 3421988: 3531989: 3521992: 3231993: 3521994: 3601995: 3231997: 3451998: 3402004: 3112005: 3262011: 333195619611967197219771982198719942005
Days per year at Santa Rosa with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 360 in 1994.
Days at or above 30 C (86 F) per year at Santa Rosa
YearDaysDecade average
1956351332
1957328332
1958316332
1959333332
1960342332.6
1961326332.6
1962345332.6
1964323332.6
1965337332.6
1966325332.6
1967319332.6
1968335332.6
1969341332.6
1970346337.5
1971346337.5
1972342337.5
1973333337.5
1974345337.5
1975343337.5
1976317337.5
1977342337.5
1978316337.5
1979345337.5
1980341343.3
1981343343.3
1982338343.3
1983330343.3
1984346343.3
1985337343.3
1986351343.3
1987342343.3
1988353343.3
1989352343.3
1992323340.5
1993352340.5
1994360340.5
1995323340.5
1997345340.5
1998340340.5
2004311318.5
2005326318.5
2011333333
First to last qualifying date each year at Santa Rosa For each year, a bar from the first to the last day at Santa Rosa meeting 30 C (86 F). 1956: 1 January 1956 to 31 December 19561957: 1 January 1957 to 30 December 19571958: 2 January 1958 to 31 December 19581959: 7 January 1959 to 29 December 19591960: 1 January 1960 to 31 December 19601961: 1 February 1961 to 31 December 19611962: 1 January 1962 to 31 December 19621964: 5 January 1964 to 31 December 19641965: 1 January 1965 to 31 December 19651966: 1 January 1966 to 31 December 19661967: 2 January 1967 to 31 December 19671968: 1 January 1968 to 30 December 19681969: 2 January 1969 to 31 December 19691970: 1 January 1970 to 31 December 19701971: 1 January 1971 to 31 December 19711972: 1 January 1972 to 31 December 19721973: 4 January 1973 to 31 December 19731974: 1 January 1974 to 31 December 19741975: 1 January 1975 to 26 December 19751976: 2 January 1976 to 30 December 19761977: 3 January 1977 to 31 December 19771978: 1 January 1978 to 31 December 19781979: 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 27 December 19821983: 6 January 1983 to 31 December 19831984: 1 January 1984 to 29 December 19841985: 1 January 1985 to 31 December 19851986: 1 January 1986 to 29 December 19861987: 3 January 1987 to 29 December 19871988: 1 January 1988 to 31 December 19881989: 1 January 1989 to 31 December 19891992: 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 29 December 19951997: 1 January 1997 to 31 December 19971998: 1 January 1998 to 15 December 19982004: 1 January 2004 to 31 December 20042005: 1 January 2005 to 20 December 20052011: 5 January 2011 to 17 December 20111956196219691975198119871995JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Santa Rosa meeting 30 C (86 F).
First to last qualifying date each year at Santa Rosa
YearFirst dateLast date
19561956-01-011956-12-31
19571957-01-011957-12-30
19581958-01-021958-12-31
19591959-01-071959-12-29
19601960-01-011960-12-31
19611961-02-011961-12-31
19621962-01-011962-12-31
19641964-01-051964-12-31
19651965-01-011965-12-31
19661966-01-011966-12-31
19671967-01-021967-12-31
19681968-01-011968-12-30
19691969-01-021969-12-31
19701970-01-011970-12-31
19711971-01-011971-12-31
19721972-01-011972-12-31
19731973-01-041973-12-31
19741974-01-011974-12-31
19751975-01-011975-12-26
19761976-01-021976-12-30
19771977-01-031977-12-31
19781978-01-011978-12-31
19791979-01-011979-12-31
19801980-01-011980-12-31
19811981-01-011981-12-31
19821982-01-011982-12-27
19831983-01-061983-12-31
19841984-01-011984-12-29
19851985-01-011985-12-31
19861986-01-011986-12-29
19871987-01-031987-12-29
19881988-01-011988-12-31
19891989-01-011989-12-31
19921992-01-011992-12-31
19931993-01-011993-12-31
19941994-01-011994-12-31
19951995-01-011995-12-29
19971997-01-011997-12-31
19981998-01-011998-12-15
20042004-01-012004-12-31
20052005-01-012005-12-20
20112011-01-052011-12-17

Every Fixed Threshold

Fixed thresholds at Santa Rosa
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days423601994333
35 C (95 F): Days423051994208
40 C (104 F): Days4295201195
45 C (113 F): Days3119821
90 F (32.2 C): Days423461994309
100 F (37.8 C): Days421291993112
110 F (43.3 C): Days221519986
0 C (32 F): Frost days (min1119971
20 C (68 F): Tropical nights (min411761981140
25 C (77 F): Days with min351319606
10 mm (0.39 in): Days with 10 mm or more rain4347195823
25 mm (0.98 in): Days with 25 mm or more rain431619859
50 mm (1.97 in): Days with 50 mm or more rain33419581
100 mm (3.94 in): Days with 100 mm or more rain2119761

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1956.

Download the Data

  • Data for Santa Rosa 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).