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Built 2026-10-18 (18 October 2026)

Santiaguillo Weather Records (MXN00024079)

Record envelope, standing records and threshold days for Santiaguillo (MXN00024079), Mexico, with 40 years of record.

Key Facts for Santiaguillo

  • Santiaguillo (MXN00024079) is a weather station in Mexico at 21.82 latitude and -98.93 longitude, 90 m (295 ft) above sea level.
  • The station reports from 1971 to 2010, 40 years of record.
  • 1,464 records set at Santiaguillo still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Santiaguillo set a daily record precipitation of 32.8 mm (1.3 in) on 18 September 2010.

About the Station

  • Location: Mexico, 21.82 latitude, -98.93 longitude.
  • Elevation: 90 m (295 ft).
  • Period of record: 1971 to 2010, 40 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Santiaguillo, with 2026 drawn through them The band shows the record high and record low for each calendar day at Santiaguillo. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 01020304050 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Santiaguillo. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Santiaguillo, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan43.9 C (111.0 F)1.7 C (35.1 F)n/an/a
Feb41.7 C (107.1 F)2.8 C (37.0 F)n/an/a
Mar45.6 C (114.1 F)2.8 C (37.0 F)n/an/a
Apr45.0 C (113.0 F)5.6 C (42.1 F)n/an/a
May47.8 C (118.0 F)5.6 C (42.1 F)n/an/a
Jun48.9 C (120.0 F)7.8 C (46.0 F)n/an/a
Jul47.8 C (118.0 F)10.0 C (50.0 F)n/an/a
Aug43.9 C (111.0 F)10.0 C (50.0 F)n/an/a
Sep42.8 C (109.0 F)10.0 C (50.0 F)n/an/a
Oct40.6 C (105.1 F)7.8 C (46.0 F)n/an/a
Nov41.7 C (107.1 F)8.9 C (48.0 F)n/an/a
Dec40.0 C (104.0 F)5.6 C (42.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Santiaguillo by the year they were set 1,464 records at Santiaguillo still stand. 2009 holds the most, with 287. 01002003001998: 341999: 1392000: 632001: 1472002: 512003: 1542004: 1462005: 1142006: 902007: 752008: 752009: 2872010: 891998200020022004200620082010
1,464 records at Santiaguillo still stand. 2009 holds the most, with 287.
Standing records at Santiaguillo by the year they were set
Year setStanding records
199834
1999139
200063
2001147
200251
2003154
2004146
2005114
200690
200775
200875
2009287
201089

Wettest Day of Each Month

Aug: 298.2 mm (11.7 in)
Record daily precipitation for each month at Santiaguillo The wettest day on record for each calendar month at Santiaguillo. The most was 298.2 mm (11.7 in) on 7 August 1990. 0100200300 Jan: 35.8 mm (1.4 in), 30 January 1984 Jan Feb: 47.0 mm (1.9 in), 4 February 2007 Feb Mar: 37.3 mm (1.5 in), 9 March 1983 Mar Apr: 80.8 mm (3.2 in), 8 April 1985 Apr May: 119.9 mm (4.7 in), 26 May 2003 May Jun: 201.2 mm (7.9 in), 14 June 1993 Jun Jul: 294.9 mm (11.6 in), 7 July 2008 Jul Aug: 298.2 mm (11.7 in), 7 August 1990 Aug Sep: 240.0 mm (9.4 in), 23 September 1974 Sep Oct: 178.8 mm (7.0 in), 7 October 2008 Oct Nov: 79.8 mm (3.1 in), 10 November 2006 Nov Dec: 82.8 mm (3.3 in), 4 December 1981 Dec
The wettest day on record for each calendar month at Santiaguillo. The most was 298.2 mm (11.7 in) on 7 August 1990.
Record daily precipitation for each month at Santiaguillo
MonthRecord daily precipitation (mm)Date
Jan35.8 mm (1.4 in)30 January 1984
Feb47.0 mm (1.9 in)4 February 2007
Mar37.3 mm (1.5 in)9 March 1983
Apr80.8 mm (3.2 in)8 April 1985
May119.9 mm (4.7 in)26 May 2003
Jun201.2 mm (7.9 in)14 June 1993
Jul294.9 mm (11.6 in)7 July 2008
Aug298.2 mm (11.7 in)7 August 1990
Sep240.0 mm (9.4 in)23 September 1974
Oct178.8 mm (7.0 in)7 October 2008
Nov79.8 mm (3.1 in)10 November 2006
Dec82.8 mm (3.3 in)4 December 1981

Period of Record Coverage

1998 to 2010
Days with data per year at Santiaguillo 13 years of record at Santiaguillo, 1998 to 2010. 1 years have data for under 90 percent of days and are left out of rankings: 1998. 1998: 31 of 365 days1999: 358 of 365 days2000: 356 of 366 days2001: 358 of 365 days2002: 363 of 365 days2003: 354 of 365 days2004: 365 of 366 days2005: 365 of 365 days2006: 364 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 359 of 365 days2010: 333 of 365 days200020052010
13 years of record at Santiaguillo, 1998 to 2010. 1 years have data for under 90 percent of days and are left out of rankings: 1998.
Days with data per year at Santiaguillo
YearDays with dataShare of yearComplete
1998318%No
199935898%Yes
200035697%Yes
200135898%Yes
200236399%Yes
200335497%Yes
2004365100%Yes
2005365100%Yes
2006364100%Yes
2007365100%Yes
2008366100%Yes
200935998%Yes
201033391%Yes

Latest Records

20
Latest records at Santiaguillo
DateStationRecordValueBeat old record byOld record stoodSignificance
18 September 2010Santiaguillo, MXdaily rain32.8 mm (1.3 in)7.9 mm (0.31 in)0 years6 of 100 (Routine)
16 September 2010Santiaguillo, MXdaily rain59.9 mm (2.4 in)43.1 mm (1.7 in)31 years25 of 100 (Routine)
28 July 2010Santiaguillo, MXdaily rain52.8 mm (2.1 in)19.5 mm (0.8 in)12 years12 of 100 (Routine)
27 July 2010Santiaguillo, MXdaily rain102.9 mm (4.1 in)63.0 mm (2.5 in)35 years31 of 100 (Routine)
25 July 2010Santiaguillo, MXdaily rain119.9 mm (4.7 in)60.0 mm (2.4 in)20 years26 of 100 (Routine)
24 July 2010Santiaguillo, MXdaily rain88.9 mm (3.5 in)24.1 mm (0.9 in)8 years12 of 100 (Routine)
15 May 2010Santiaguillo, MXdaily rain67.8 mm (2.7 in)26.9 mm (1.1 in)8 years17 of 100 (Routine)
17 April 2010Santiaguillo, MXdaily rain30.0 mm (1.2 in)17.6 mm (0.7 in)33 years26 of 100 (Routine)
12 April 2010Santiaguillo, MXdaily rain22.9 mm (0.9 in)1.1 mm (0.04 in)24 years11 of 100 (Routine)
2 February 2010Santiaguillo, MXdaily rain21.8 mm (0.9 in)2.0 mm (0.08 in)18 years11 of 100 (Routine)
15 January 2010Santiaguillo, MXdaily rain17.8 mm (0.7 in)3.8 mm (0.15 in)0 years9 of 100 (Routine)
18 September 2009Santiaguillo, MXdaily rain24.9 mm (1.0 in)6.6 mm (0.26 in)18 years9 of 100 (Routine)
10 September 2009Santiaguillo, MXdaily rain79.8 mm (3.1 in)30.0 mm (1.2 in)8 years13 of 100 (Routine)
30 August 2009Santiaguillo, MXdaily rain149.9 mm (5.9 in)75.0 mm (3.0 in)2 years25 of 100 (Routine)
19 June 2009Santiaguillo, MXdaily rain79.8 mm (3.1 in)27.0 mm (1.1 in)35 years21 of 100 (Routine)
19 April 2009Santiaguillo, MXdaily rain20.8 mm (0.8 in)10.9 mm (0.4 in)20 years16 of 100 (Routine)
15 February 2009Santiaguillo, MXdaily rain9.9 mm (0.39 in)6.1 mm (0.24 in)36 years19 of 100 (Routine)
15 January 2009Santiaguillo, MXdaily rain14.0 mm (0.6 in)4.1 mm (0.16 in)26 years15 of 100 (Routine)
6 November 2008Santiaguillo, MXdaily rain20.8 mm (0.8 in)11.9 mm (0.5 in)35 years20 of 100 (Routine)
7 October 2008Santiaguillo, MXmonthly rain178.8 mm (7.0 in)58.9 mm (2.3 in)36 years52 of 100 (Notable)

Climate Trend

11 complete years, 1999 to 2009
Annual mean temperature at Santiaguillo as warming stripes, 1999 to 2009 One stripe for each of 11 complete years at Santiaguillo, 1999 to 2009. Blue stripes are years cooler than the station's own mean of 24.7 C (76.4 F); red stripes are warmer. The coolest year was 2009, at 20.1 C (68.2 F), and the warmest was 2003, at 26.6 C (79.9 F). The strongest colour marks a difference of 4.6 C (8.3 F). 1999: 22.9 C, -1.8 C from the station mean2000: 23.9 C, -0.7 C from the station mean2001: 25.3 C, +0.7 C from the station mean2002: 24.5 C, -0.1 C from the station mean2003: 26.6 C, +1.9 C from the station mean2004: 26.2 C, +1.5 C from the station mean2005: 25.3 C, +0.6 C from the station mean2006: 25.8 C, +1.1 C from the station mean2007: 25.2 C, +0.5 C from the station mean2008: 25.5 C, +0.8 C from the station mean2009: 20.1 C, -4.6 C from the station mean199920002002200420062008
One stripe for each of 11 complete years at Santiaguillo, 1999 to 2009. Blue stripes are years cooler than the station's own mean of 24.7 C (76.4 F); red stripes are warmer. The coolest year was 2009, at 20.1 C (68.2 F), and the warmest was 2003, at 26.6 C (79.9 F). The strongest colour marks a difference of 4.6 C (8.3 F).
Annual mean temperature at Santiaguillo as warming stripes, 1999 to 2009
YearAnnual mean temperatureDifference from the station mean
199922.9 C-1.78 C
200023.9 C-0.74 C
200125.3 C+0.66 C
200224.5 C-0.13 C
200326.6 C+1.94 C
200426.2 C+1.49 C
200525.3 C+0.64 C
200625.8 C+1.12 C
200725.2 C+0.55 C
200825.5 C+0.83 C
200920.1 C-4.58 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1971 to 2010
Yearly extremes at Santiaguillo: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)48.9 C (120.0 F)200145.0 C (113.0 F)13
Coldest night (TNn)1.7 C (35.1 F)20075.0 C (41.0 F)13
Wettest day (Rx1day)298.2 mm (11.7 in)1990119.9 mm (4.7 in)40
Wettest five days (Rx5day)614.2 mm (24.2 in)2008218.9 mm (8.6 in)40
Longest dry spell (CDD)121 days200242 days40

Hottest day (TXx)

Hottest day (TXx) at Santiaguillo by year The hottest day of the year at Santiaguillo, 1971 to 2010. The record is 48.9 C (120.0 F) in 2001, marked on the chart; the median year is 45.0 C (113.0 F). 30354045501980199020002010Record: 48.9 C (120.0 F) in 2001
The hottest day of the year at Santiaguillo, 1971 to 2010. The record is 48.9 C (120.0 F) in 2001, marked on the chart; the median year is 45.0 C (113.0 F).
Hottest day (TXx) at Santiaguillo by year
YearHottest day (TXx)
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
199830.0 C (86.0 F)
199945.0 C (113.0 F)
200038.9 C (102.0 F)
200148.9 C (120.0 F)
200241.7 C (107.1 F)
200347.8 C (118.0 F)
200445.0 C (113.0 F)
200545.0 C (113.0 F)
200645.6 C (114.1 F)
200740.6 C (105.1 F)
200847.8 C (118.0 F)
200941.7 C (107.1 F)
201035.6 C (96.1 F)

Coldest night (TNn)

Coldest night (TNn) at Santiaguillo by year The coldest night of the year at Santiaguillo, 1971 to 2010. The record is 1.7 C (35.1 F) in 2007, marked on the chart; the median year is 5.0 C (41.0 F). 02.557.5101980199020002010Record: 1.7 C (35.1 F) in 2007
The coldest night of the year at Santiaguillo, 1971 to 2010. The record is 1.7 C (35.1 F) in 2007, marked on the chart; the median year is 5.0 C (41.0 F).
Coldest night (TNn) at Santiaguillo by year
YearColdest night (TNn)
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
19985.6 C (42.1 F)
19992.8 C (37.0 F)
20006.7 C (44.1 F)
20013.9 C (39.0 F)
200210.0 C (50.0 F)
200310.0 C (50.0 F)
20043.9 C (39.0 F)
20053.9 C (39.0 F)
20063.9 C (39.0 F)
20071.7 C (35.1 F)
20085.6 C (42.1 F)
20097.8 C (46.0 F)
20105.0 C (41.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Santiaguillo by year The wettest day of the year at Santiaguillo, 1971 to 2010. The record is 298.2 mm (11.7 in) in 1990, marked on the chart; the median year is 119.9 mm (4.7 in). 01002003001980199020002010Record: 298.2 mm (11.7 in) in 1990
The wettest day of the year at Santiaguillo, 1971 to 2010. The record is 298.2 mm (11.7 in) in 1990, marked on the chart; the median year is 119.9 mm (4.7 in).
Wettest day (Rx1day) at Santiaguillo by year
YearWettest day (Rx1day)
1971119.9 mm (4.7 in)
197272.9 mm (2.9 in)
197359.9 mm (2.4 in)
1974240.0 mm (9.4 in)
1975150.4 mm (5.9 in)
1976140.5 mm (5.5 in)
1977177.8 mm (7.0 in)
1978131.8 mm (5.2 in)
197964.8 mm (2.6 in)
1980131.8 mm (5.2 in)
198193.0 mm (3.7 in)
1982112.8 mm (4.4 in)
1983104.9 mm (4.1 in)
1984116.8 mm (4.6 in)
1985122.9 mm (4.8 in)
198695.3 mm (3.8 in)
198762.0 mm (2.4 in)
1988140.0 mm (5.5 in)
1989119.9 mm (4.7 in)
1990298.2 mm (11.7 in)
1991259.3 mm (10.2 in)
1992121.7 mm (4.8 in)
1993201.2 mm (7.9 in)
1994191.0 mm (7.5 in)
199546.2 mm (1.8 in)
199640.1 mm (1.6 in)
199733.8 mm (1.3 in)
199860.5 mm (2.4 in)
1999100.6 mm (4.0 in)
200079.8 mm (3.1 in)
200197.8 mm (3.9 in)
200264.8 mm (2.6 in)
2003119.9 mm (4.7 in)
2004125.0 mm (4.9 in)
2005102.9 mm (4.1 in)
200679.8 mm (3.1 in)
2007178.8 mm (7.0 in)
2008294.9 mm (11.6 in)
2009149.9 mm (5.9 in)
2010119.9 mm (4.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Santiaguillo by year The wettest five days of the year at Santiaguillo, 1971 to 2010. The record is 614.2 mm (24.2 in) in 2008, marked on the chart; the median year is 218.9 mm (8.6 in). 02004006008001980199020002010Record: 614.2 mm (24.2 in) in 2008
The wettest five days of the year at Santiaguillo, 1971 to 2010. The record is 614.2 mm (24.2 in) in 2008, marked on the chart; the median year is 218.9 mm (8.6 in).
Wettest five days (Rx5day) at Santiaguillo by year
YearWettest five days (Rx5day)
1971161.3 mm (6.4 in)
1972159.3 mm (6.3 in)
1973104.7 mm (4.1 in)
1974515.4 mm (20.3 in)
1975307.7 mm (12.1 in)
1976445.3 mm (17.5 in)
1977246.4 mm (9.7 in)
1978346.3 mm (13.6 in)
1979127.0 mm (5.0 in)
1980256.6 mm (10.1 in)
1981256.1 mm (10.1 in)
1982155.3 mm (6.1 in)
1983223.0 mm (8.8 in)
1984265.7 mm (10.5 in)
1985271.6 mm (10.7 in)
1986152.6 mm (6.0 in)
1987126.8 mm (5.0 in)
1988226.5 mm (8.9 in)
1989279.5 mm (11.0 in)
1990384.0 mm (15.1 in)
1991475.8 mm (18.7 in)
1992189.9 mm (7.5 in)
1993517.9 mm (20.4 in)
1994609.2 mm (24.0 in)
199546.2 mm (1.8 in)
1996141.2 mm (5.6 in)
199760.5 mm (2.4 in)
199890.7 mm (3.6 in)
1999263.9 mm (10.4 in)
2000178.3 mm (7.0 in)
2001155.1 mm (6.1 in)
2002183.6 mm (7.2 in)
2003210.6 mm (8.3 in)
2004125.0 mm (4.9 in)
2005183.7 mm (7.2 in)
200698.6 mm (3.9 in)
2007444.5 mm (17.5 in)
2008614.2 mm (24.2 in)
2009214.7 mm (8.5 in)
2010409.4 mm (16.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Santiaguillo by year The longest dry spell of the year at Santiaguillo, 1971 to 2010. The record is 121 days in 2002, marked on the chart; the median year is 42 days. 0501001501980199020002010Record: 121 days in 2002
The longest dry spell of the year at Santiaguillo, 1971 to 2010. The record is 121 days in 2002, marked on the chart; the median year is 42 days.
Longest dry spell (CDD) at Santiaguillo by year
YearLongest dry spell (CDD)
197124 days
197225 days
197359 days
197443 days
197546 days
197627 days
197747 days
197824 days
197932 days
198041 days
198145 days
198239 days
198365 days
198454 days
198526 days
198640 days
198735 days
198843 days
198931 days
199042 days
199138 days
199219 days
199332 days
199431 days
199536 days
199630 days
199746 days
199849 days
199951 days
2000115 days
200151 days
2002121 days
200389 days
200447 days
200546 days
200636 days
200729 days
200868 days
200935 days
201066 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

33 years, 1972 to 2010

A day with at least 110.5 mm (4.4 in) of rain is expected about once in 2 years. A day with at least 329.2 mm (13.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Santiaguillo: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years110.5 mm (4.4 in)
5 years163.1 mm (6.4 in)
10 years200.2 mm (7.9 in)
25 years249.8 mm (9.8 in)
50 years288.7 mm (11.4 in)Longer than the 33 years of record
100 years329.2 mm (13.0 in)Longer than the 33 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 33 years of values from 1972 to 2010.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 294.9 mm (11.6 in) in 2008; 259.3 mm (10.2 in) in 1991; 240.0 mm (9.4 in) in 1974.

Download the Data

  • Data for Santiaguillo standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Santiaguillo 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).