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Built 2026-10-19 (19 October 2026)

San Bartolo Threshold Days by Year (MXN00003050)

13 fixed thresholds counted per year at San Bartolo (MXN00003050): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Bartolo Thresholds

  • San Bartolo: days with 10 mm (0.39 in) or more of precipitation in 67 years, most in 1972 with 16.
  • San Bartolo: nights with a minimum temperature at or above 20 C (68 F) in 66 years, most in 1978 with 200.
  • San Bartolo: days with a maximum temperature at or above 30 C (86 F) in 65 years, most in 1954 with 256.
  • San Bartolo: days with a maximum temperature at or above 35 C (95 F) in 65 years, most in 2011 with 133.
  • 13 fixed thresholds have at least one qualifying day at San Bartolo.
65 years with a qualifying day
Days at or above 30 C (86 F) per year at San Bartolo Days per year at San Bartolo with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 256 in 1954. 01002003001941: 1061942: 1901943: 2071944: 1801945: 1751946: 2151947: 1871948: 1741949: 1471950: 2071951: 1911952: 1961953: 1911954: 2561955: 2041956: 2001957: 1821958: 1731960: 1971961: 1991962: 2051963: 2061964: 1741965: 1891966: 2241967: 2211968: 2121971: 1901972: 2201973: 1941974: 1581975: 1891976: 1861977: 1801978: 1841979: 1691980: 2011981: 2111982: 1601983: 2091985: 2131986: 1571987: 1441989: 1691991: 2161992: 2051993: 1691994: 2321995: 2531996: 2271998: 2081999: 2322000: 2302001: 2112002: 2142003: 2132004: 2122005: 2042006: 2272007: 2082008: 1972009: 1862010: 1872011: 2432012: 2421941194819551963197219791987199620042011
Days per year at San Bartolo with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 256 in 1954.
Days at or above 30 C (86 F) per year at San Bartolo
YearDaysDecade average
1941106175.7
1942190175.7
1943207175.7
1944180175.7
1945175175.7
1946215175.7
1947187175.7
1948174175.7
1949147175.7
1950207200
1951191200
1952196200
1953191200
1954256200
1955204200
1956200200
1957182200
1958173200
1960197203
1961199203
1962205203
1963206203
1964174203
1965189203
1966224203
1967221203
1968212203
1971190185.6
1972220185.6
1973194185.6
1974158185.6
1975189185.6
1976186185.6
1977180185.6
1978184185.6
1979169185.6
1980201183
1981211183
1982160183
1983209183
1985213183
1986157183
1987144183
1989169183
1991216217.8
1992205217.8
1993169217.8
1994232217.8
1995253217.8
1996227217.8
1998208217.8
1999232217.8
2000230210.2
2001211210.2
2002214210.2
2003213210.2
2004212210.2
2005204210.2
2006227210.2
2007208210.2
2008197210.2
2009186210.2
2010187224
2011243224
2012242224
First to last qualifying date each year at San Bartolo For each year, a bar from the first to the last day at San Bartolo meeting 30 C (86 F). 1941: 11 January 1941 to 12 November 19411942: 22 January 1942 to 31 December 19421943: 1 January 1943 to 17 October 19431944: 19 January 1944 to 7 October 19441945: 8 February 1945 to 27 November 19451946: 25 February 1946 to 27 December 19461947: 25 January 1947 to 30 November 19471948: 14 January 1948 to 25 December 19481949: 16 March 1949 to 17 October 19491950: 1 April 1950 to 17 December 19501951: 25 January 1951 to 29 December 19511952: 14 January 1952 to 6 November 19521953: 7 January 1953 to 28 November 19531954: 29 January 1954 to 27 December 19541955: 14 February 1955 to 29 December 19551956: 3 January 1956 to 27 December 19561957: 9 January 1957 to 25 December 19571958: 30 January 1958 to 11 December 19581960: 4 March 1960 to 4 December 19601961: 12 February 1961 to 27 November 19611962: 16 February 1962 to 25 November 19621963: 1 February 1963 to 16 November 19631964: 9 April 1964 to 9 November 19641965: 13 April 1965 to 29 November 19651966: 7 March 1966 to 18 December 19661967: 14 January 1967 to 7 December 19671968: 10 January 1968 to 28 December 19681971: 19 January 1971 to 27 December 19711972: 19 February 1972 to 16 December 19721973: 24 January 1973 to 15 November 19731974: 17 January 1974 to 4 November 19741975: 1 April 1975 to 17 October 19751976: 1 March 1976 to 3 November 19761977: 10 March 1977 to 28 December 19771978: 18 March 1978 to 8 November 19781979: 9 March 1979 to 19 October 19791980: 15 February 1980 to 10 November 19801981: 22 February 1981 to 14 December 19811982: 24 February 1982 to 29 October 19821983: 24 April 1983 to 31 December 19831985: 13 February 1985 to 16 November 19851986: 26 January 1986 to 13 November 19861987: 15 April 1987 to 31 October 19871989: 24 February 1989 to 15 November 19891991: 14 February 1991 to 1 December 19911992: 22 February 1992 to 30 December 19921993: 15 January 1993 to 11 December 19931994: 22 January 1994 to 24 November 19941995: 8 January 1995 to 13 December 19951996: 13 January 1996 to 13 December 19961998: 1 January 1998 to 31 December 19981999: 6 January 1999 to 29 December 19992000: 8 January 2000 to 27 October 20002001: 5 January 2001 to 25 November 20012002: 25 February 2002 to 26 November 20022003: 19 January 2003 to 14 November 20032004: 18 February 2004 to 14 December 20042005: 1 April 2005 to 13 December 20052006: 5 January 2006 to 22 November 20062007: 8 March 2007 to 27 November 20072008: 5 January 2008 to 27 November 20082009: 21 January 2009 to 12 November 20092010: 19 March 2010 to 11 December 20102011: 14 January 2011 to 30 November 20112012: 3 January 2012 to 25 December 201219411950196019711980199220022011JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Bartolo meeting 30 C (86 F).
First to last qualifying date each year at San Bartolo
YearFirst dateLast date
19411941-01-111941-11-12
19421942-01-221942-12-31
19431943-01-011943-10-17
19441944-01-191944-10-07
19451945-02-081945-11-27
19461946-02-251946-12-27
19471947-01-251947-11-30
19481948-01-141948-12-25
19491949-03-161949-10-17
19501950-04-011950-12-17
19511951-01-251951-12-29
19521952-01-141952-11-06
19531953-01-071953-11-28
19541954-01-291954-12-27
19551955-02-141955-12-29
19561956-01-031956-12-27
19571957-01-091957-12-25
19581958-01-301958-12-11
19601960-03-041960-12-04
19611961-02-121961-11-27
19621962-02-161962-11-25
19631963-02-011963-11-16
19641964-04-091964-11-09
19651965-04-131965-11-29
19661966-03-071966-12-18
19671967-01-141967-12-07
19681968-01-101968-12-28
19711971-01-191971-12-27
19721972-02-191972-12-16
19731973-01-241973-11-15
19741974-01-171974-11-04
19751975-04-011975-10-17
19761976-03-011976-11-03
19771977-03-101977-12-28
19781978-03-181978-11-08
19791979-03-091979-10-19
19801980-02-151980-11-10
19811981-02-221981-12-14
19821982-02-241982-10-29
19831983-04-241983-12-31
19851985-02-131985-11-16
19861986-01-261986-11-13
19871987-04-151987-10-31
19891989-02-241989-11-15
19911991-02-141991-12-01
19921992-02-221992-12-30
19931993-01-151993-12-11
19941994-01-221994-11-24
19951995-01-081995-12-13
19961996-01-131996-12-13
19981998-01-011998-12-31
19991999-01-061999-12-29
20002000-01-082000-10-27
20012001-01-052001-11-25
20022002-02-252002-11-26
20032003-01-192003-11-14
20042004-02-182004-12-14
20052005-04-012005-12-13
20062006-01-052006-11-22
20072007-03-082007-11-27
20082008-01-052008-11-27
20092009-01-212009-11-12
20102010-03-192010-12-11
20112011-01-142011-11-30
20122012-01-032012-12-25

Every Fixed Threshold

Fixed thresholds at San Bartolo
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days652561954242
35 C (95 F): Days651332011103
40 C (104 F): Days173019802
90 F (32.2 C): Days651921966151
100 F (37.8 C): Days5859198010
0 C (32 F): Frost days (min2219602
20 C (68 F): Tropical nights (min662001978105
25 C (77 F): Days with min558719785
10 mm (0.39 in): Days with 10 mm or more rain6716197210
25 mm (0.98 in): Days with 25 mm or more rain62919724
50 mm (1.97 in): Days with 50 mm or more rain45519491
100 mm (3.94 in): Days with 100 mm or more rain15320031
200 mm (7.87 in): Days with 200 mm or more rain6219821

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1941.

Download the Data

  • Data for San Bartolo 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).