Built 2026-10-19 (19 October 2026)

Santa Ana Tlapacoyan Threshold Days by Year (MXN00020202)

9 fixed thresholds counted per year at Santa Ana Tlapacoyan (MXN00020202): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Santa Ana Tlapacoyan Thresholds

  • Santa Ana Tlapacoyan: days with 10 mm (0.39 in) or more of precipitation in 32 years, most in 2004 with 36.
  • Santa Ana Tlapacoyan: days with 25 mm (0.98 in) or more of precipitation in 32 years, most in 2005 with 13.
  • Santa Ana Tlapacoyan: days with a maximum temperature at or above 30 C (86 F) in 31 years, most in 2003 with 245.
  • Santa Ana Tlapacoyan: days with a maximum temperature at or above 90 F (32.2 C) in 30 years, most in 1973 with 91.
  • 9 fixed thresholds have at least one qualifying day at Santa Ana Tlapacoyan.
31 years with a qualifying day
Days at or above 30 C (86 F) per year at Santa Ana Tlapacoyan Days per year at Santa Ana Tlapacoyan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 245 in 2003. 01002003001973: 1771974: 1081975: 981976: 991977: 1121978: 871979: 1221980: 1611982: 1361983: 1271984: 771985: 121986: 311987: 1591989: 991990: 871991: 1281992: 811994: 1571995: 1471996: 1081997: 1601998: 1352000: 1642001: 1682002: 2412003: 2452004: 1442005: 692006: 1492007: 20019731977198219861991199620012005
Days per year at Santa Ana Tlapacoyan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 245 in 2003.
Days at or above 30 C (86 F) per year at Santa Ana Tlapacoyan
YearDaysDecade average
1973177114.7
1974108114.7
197598114.7
197699114.7
1977112114.7
197887114.7
1979122114.7
1980161100.3
1982136100.3
1983127100.3
198477100.3
198512100.3
198631100.3
1987159100.3
198999100.3
199087125.4
1991128125.4
199281125.4
1994157125.4
1995147125.4
1996108125.4
1997160125.4
1998135125.4
2000164172.5
2001168172.5
2002241172.5
2003245172.5
2004144172.5
200569172.5
2006149172.5
2007200172.5
First to last qualifying date each year at Santa Ana Tlapacoyan For each year, a bar from the first to the last day at Santa Ana Tlapacoyan meeting 30 C (86 F). 1973: 1 January 1973 to 29 December 19731974: 6 January 1974 to 29 October 19741975: 31 January 1975 to 29 November 19751976: 6 February 1976 to 30 October 19761977: 13 January 1977 to 25 December 19771978: 2 January 1978 to 3 December 19781979: 15 February 1979 to 21 November 19791980: 30 January 1980 to 23 November 19801982: 21 January 1982 to 30 November 19821983: 2 March 1983 to 13 November 19831984: 28 January 1984 to 26 October 19841985: 2 April 1985 to 23 October 19851986: 15 March 1986 to 19 December 19861987: 15 February 1987 to 25 December 19871989: 2 January 1989 to 15 December 19891990: 21 January 1990 to 17 October 19901991: 21 January 1991 to 3 December 19911992: 7 January 1992 to 21 December 19921994: 26 January 1994 to 29 December 19941995: 12 January 1995 to 17 December 19951996: 22 January 1996 to 8 December 19961997: 7 January 1997 to 28 December 19971998: 12 January 1998 to 23 September 19982000: 30 January 2000 to 27 December 20002001: 6 January 2001 to 25 December 20012002: 1 January 2002 to 31 December 20022003: 1 January 2003 to 16 December 20032004: 4 January 2004 to 24 December 20042005: 2 January 2005 to 4 August 20052006: 5 March 2006 to 29 November 20062007: 6 January 2007 to 31 December 200719731977198219861991199620012005JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Santa Ana Tlapacoyan meeting 30 C (86 F).
First to last qualifying date each year at Santa Ana Tlapacoyan
YearFirst dateLast date
19731973-01-011973-12-29
19741974-01-061974-10-29
19751975-01-311975-11-29
19761976-02-061976-10-30
19771977-01-131977-12-25
19781978-01-021978-12-03
19791979-02-151979-11-21
19801980-01-301980-11-23
19821982-01-211982-11-30
19831983-03-021983-11-13
19841984-01-281984-10-26
19851985-04-021985-10-23
19861986-03-151986-12-19
19871987-02-151987-12-25
19891989-01-021989-12-15
19901990-01-211990-10-17
19911991-01-211991-12-03
19921992-01-071992-12-21
19941994-01-261994-12-29
19951995-01-121995-12-17
19961996-01-221996-12-08
19971997-01-071997-12-28
19981998-01-121998-09-23
20002000-01-302000-12-27
20012001-01-062001-12-25
20022002-01-012002-12-31
20032003-01-012003-12-16
20042004-01-042004-12-24
20052005-01-022005-08-04
20062006-03-052006-11-29
20072007-01-062007-12-31

Every Fixed Threshold

Fixed thresholds at Santa Ana Tlapacoyan
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days312452003200
35 C (95 F): Days224920032
90 F (32.2 C): Days3091197329
100 F (37.8 C): Days2419984
0 C (32 F): Frost days (min191619986
20 C (68 F): Tropical nights (min8320002
10 mm (0.39 in): Days with 10 mm or more rain3236200430
25 mm (0.98 in): Days with 25 mm or more rain3213200510
50 mm (1.97 in): Days with 50 mm or more rain18319981

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1973.

Download the Data

  • Data for Santa Ana Tlapacoyan 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).