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Built 2026-10-19 (19 October 2026)

Ixtlahuacan (Smn) Weather Records (MXN00006042)

Record envelope, standing records and threshold days for Ixtlahuacan (Smn) (MXN00006042), Mexico, with 70 years of record.

Key Facts for Ixtlahuacan (Smn)

  • Ixtlahuacan (Smn) (MXN00006042) is a weather station in Mexico at 19.00 latitude and -103.72 longitude, 194 m (636 ft) above sea level.
  • The station reports from 1944 to 2013, 70 years of record.
  • 1,464 records set at Ixtlahuacan (Smn) still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Ixtlahuacan (Smn) tied a daily record high minimum temperature of 25.6 C (78.1 F) on 9 May 2013.

About the Station

  • Location: Mexico, 19.00 latitude, -103.72 longitude.
  • Elevation: 194 m (636 ft).
  • Period of record: 1944 to 2013, 70 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Ixtlahuacan (Smn), with 2026 drawn through them The band shows the record high and record low for each calendar day at Ixtlahuacan (Smn). 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 Ixtlahuacan (Smn). 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 Ixtlahuacan (Smn), with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan45.0 C (113.0 F)5.6 C (42.1 F)n/an/a
Feb45.0 C (113.0 F)5.0 C (41.0 F)n/an/a
Mar45.0 C (113.0 F)3.9 C (39.0 F)n/an/a
Apr41.7 C (107.1 F)8.9 C (48.0 F)n/an/a
May43.9 C (111.0 F)8.9 C (48.0 F)n/an/a
Jun43.3 C (109.9 F)10.6 C (51.1 F)n/an/a
Jul41.7 C (107.1 F)11.7 C (53.1 F)n/an/a
Aug41.7 C (107.1 F)11.7 C (53.1 F)n/an/a
Sep40.0 C (104.0 F)12.8 C (55.0 F)n/an/a
Oct40.6 C (105.1 F)11.7 C (53.1 F)n/an/a
Nov43.9 C (111.0 F)10.0 C (50.0 F)n/an/a
Dec42.8 C (109.0 F)7.8 C (46.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Ixtlahuacan (Smn) by the year they were set 1,464 records at Ixtlahuacan (Smn) still stand. 1998 holds the most, with 212. 01002003001957: 331958: 521959: 261960: 351961: 141962: 341963: 181964: 111965: 191966: 211967: 101968: 231969: 161970: 161971: 101972: 181973: 111974: 11986: 11987: 81988: 341989: 191990: 241991: 111992: 141993: 1461994: 871995: 191996: 271997: 271998: 2121999: 92000: 72001: 102002: 122003: 182004: 242005: 72006: 182007: 832008: 1092009: 452010: 722011: 242012: 262013: 31957196219671972198819931998200320082013
1,464 records at Ixtlahuacan (Smn) still stand. 1998 holds the most, with 212.
Standing records at Ixtlahuacan (Smn) by the year they were set
Year setStanding records
195733
195852
195926
196035
196114
196234
196318
196411
196519
196621
196710
196823
196916
197016
197110
197218
197311
19741
19861
19878
198834
198919
199024
199111
199214
1993146
199487
199519
199627
199727
1998212
19999
20007
200110
200212
200318
200424
20057
200618
200783
2008109
200945
201072
201124
201226
20133

All-Time Record Progression

1 new records
When Ixtlahuacan (Smn) set new all-time records 1 all-time records were set at Ixtlahuacan (Smn) between 4 January 2008 and 4 January 2008. Each dot is a new record. Record high maximum temperature4 January 2008: Record high maximum temperature 45.0 C (113.0 F)
1 all-time records were set at Ixtlahuacan (Smn) between 4 January 2008 and 4 January 2008. Each dot is a new record.
When Ixtlahuacan (Smn) set new all-time records
DateKindDetail
2008-01-04Record high maximum temperatureRecord high maximum temperature 45.0 C (113.0 F)

Wettest Day of Each Month

Oct: 300.0 mm (11.8 in)
Record daily precipitation for each month at Ixtlahuacan (Smn) The wettest day on record for each calendar month at Ixtlahuacan (Smn). The most was 300.0 mm (11.8 in) on 3 October 1969. 0100200300 Jan: 68.3 mm (2.7 in), 12 January 1967 Jan Feb: 105.9 mm (4.2 in), 3 February 2010 Feb Mar: 142.0 mm (5.6 in), 4 March 1968 Mar Apr: 101.9 mm (4.0 in), 17 April 1959 Apr May: 86.9 mm (3.4 in), 28 May 1974 May Jun: 133.4 mm (5.3 in), 24 June 1966 Jun Jul: 121.4 mm (4.8 in), 31 July 1973 Jul Aug: 123.7 mm (4.9 in), 21 August 1993 Aug Sep: 222.0 mm (8.7 in), 5 September 1999 Sep Oct: 300.0 mm (11.8 in), 3 October 1969 Oct Nov: 132.8 mm (5.2 in), 24 November 1972 Nov Dec: 111.3 mm (4.4 in), 18 December 1991 Dec
The wettest day on record for each calendar month at Ixtlahuacan (Smn). The most was 300.0 mm (11.8 in) on 3 October 1969.
Record daily precipitation for each month at Ixtlahuacan (Smn)
MonthRecord daily precipitation (mm)Date
Jan68.3 mm (2.7 in)12 January 1967
Feb105.9 mm (4.2 in)3 February 2010
Mar142.0 mm (5.6 in)4 March 1968
Apr101.9 mm (4.0 in)17 April 1959
May86.9 mm (3.4 in)28 May 1974
Jun133.4 mm (5.3 in)24 June 1966
Jul121.4 mm (4.8 in)31 July 1973
Aug123.7 mm (4.9 in)21 August 1993
Sep222.0 mm (8.7 in)5 September 1999
Oct300.0 mm (11.8 in)3 October 1969
Nov132.8 mm (5.2 in)24 November 1972
Dec111.3 mm (4.4 in)18 December 1991

Period of Record Coverage

1957 to 2013
Days with data per year at Ixtlahuacan (Smn) 46 years of record at Ixtlahuacan (Smn), 1957 to 2013. 13 years have data for under 90 percent of days and are left out of rankings: 1957, 1974, 1986, 1987, 1988, 1989, 1991, 1992 and others. 1957: 148 of 365 days1958: 361 of 365 days1959: 364 of 365 days1960: 366 of 366 days1961: 353 of 365 days1962: 353 of 365 days1963: 353 of 365 days1964: 353 of 366 days1965: 353 of 365 days1966: 353 of 365 days1967: 353 of 365 days1968: 353 of 366 days1969: 361 of 365 days1970: 365 of 365 days1971: 364 of 365 days1972: 335 of 366 days1973: 363 of 365 days1974: 166 of 365 days1986: 44 of 365 days1987: 147 of 365 days1988: 213 of 366 days1989: 319 of 365 days1990: 365 of 365 days1991: 243 of 365 days1992: 225 of 366 days1993: 243 of 365 days1994: 359 of 365 days1995: 245 of 365 days1996: 132 of 366 days1997: 294 of 365 days1998: 353 of 365 days1999: 365 of 365 days2000: 365 of 366 days2001: 363 of 365 days2002: 355 of 365 days2003: 356 of 365 days2004: 358 of 366 days2005: 354 of 365 days2006: 353 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 91 of 365 days19601970199020002010
46 years of record at Ixtlahuacan (Smn), 1957 to 2013. 13 years have data for under 90 percent of days and are left out of rankings: 1957, 1974, 1986, 1987, 1988, 1989, 1991, 1992 and others.
Days with data per year at Ixtlahuacan (Smn)
YearDays with dataShare of yearComplete
195714841%No
195836199%Yes
1959364100%Yes
1960366100%Yes
196135397%Yes
196235397%Yes
196335397%Yes
196435396%Yes
196535397%Yes
196635397%Yes
196735397%Yes
196835396%Yes
196936199%Yes
1970365100%Yes
1971364100%Yes
197233592%Yes
197336399%Yes
197416645%No
19864412%No
198714740%No
198821358%No
198931987%No
1990365100%Yes
199124367%No
199222561%No
199324367%No
199435998%Yes
199524567%No
199613236%No
199729481%No
199835397%Yes
1999365100%Yes
2000365100%Yes
200136399%Yes
200235597%Yes
200335698%Yes
200435898%Yes
200535497%Yes
200635397%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
20139125%No

Latest Records

20
Latest records at Ixtlahuacan (Smn)
DateStationRecordValueBeat old record byOld record stoodSignificance
9 May 2013Ixtlahuacan (Smn), MXdaily high min (Tie)25.6 C (78.1 F)tie54 years5 of 100 (Routine)
8 May 2013Ixtlahuacan (Smn), MXdaily high max (Tie)38.9 C (102.0 F)tie0 years1 of 100 (Routine)
8 May 2013Ixtlahuacan (Smn), MXdaily high min (Tie)25.0 C (77.0 F)tie8 years1 of 100 (Routine)
14 April 2013Ixtlahuacan (Smn), MXdaily high min25.0 C (77.0 F)1.1 C (2.0 F)8 years10 of 100 (Routine)
13 April 2013Ixtlahuacan (Smn), MXdaily high max38.9 C (102.0 F)1.1 C (2.0 F)55 years25 of 100 (Routine)
13 April 2013Ixtlahuacan (Smn), MXmonthly high min (Tie)25.6 C (78.1 F)tie48 years7 of 100 (Routine)
9 April 2013Ixtlahuacan (Smn), MXdaily high min (Tie)22.8 C (73.0 F)tie8 years1 of 100 (Routine)
26 December 2012Ixtlahuacan (Smn), MXdaily high min (Tie)21.7 C (71.1 F)tie10 years2 of 100 (Routine)
25 December 2012Ixtlahuacan (Smn), MXdaily high min22.8 C (73.0 F)1.1 C (2.0 F)48 years22 of 100 (Routine)
23 December 2012Ixtlahuacan (Smn), MXdaily high min (Tie)21.7 C (71.1 F)tie4 years1 of 100 (Routine)
22 December 2012Ixtlahuacan (Smn), MXdaily high min (Tie)21.7 C (71.1 F)tie48 years4 of 100 (Routine)
20 December 2012Ixtlahuacan (Smn), MXdaily high min (Tie)20.6 C (69.1 F)tie55 years5 of 100 (Routine)
18 December 2012Ixtlahuacan (Smn), MXdaily high min (Tie)22.8 C (73.0 F)tie46 years4 of 100 (Routine)
17 December 2012Ixtlahuacan (Smn), MXdaily high min23.9 C (75.0 F)1.1 C (2.0 F)1 year8 of 100 (Routine)
12 December 2012Ixtlahuacan (Smn), MXdaily high min23.9 C (75.0 F)1.1 C (2.0 F)1 year8 of 100 (Routine)
10 December 2012Ixtlahuacan (Smn), MXdaily high min22.8 C (73.0 F)1.1 C (2.0 F)15 years12 of 100 (Routine)
9 December 2012Ixtlahuacan (Smn), MXdaily high min25.0 C (77.0 F)1.1 C (2.0 F)47 years22 of 100 (Routine)
7 December 2012Ixtlahuacan (Smn), MXdaily high min (Tie)22.8 C (73.0 F)tie54 years5 of 100 (Routine)
6 December 2012Ixtlahuacan (Smn), MXdaily high min23.9 C (75.0 F)1.1 C (2.0 F)54 years24 of 100 (Routine)
5 December 2012Ixtlahuacan (Smn), MXmonthly high min (Tie)25.6 C (78.1 F)tie10 years4 of 100 (Routine)

Climate Trend

30 complete years, 1958 to 2012
Annual mean temperature at Ixtlahuacan (Smn) as warming stripes, 1958 to 2012 One stripe for each of 30 complete years at Ixtlahuacan (Smn), 1958 to 2012. Blue stripes are years cooler than the station's own mean of 27.0 C (80.7 F); red stripes are warmer. The coolest year was 1998, at 23.8 C (74.9 F), and the warmest was 2007, at 29.0 C (84.1 F). The strongest colour marks a difference of 3.3 C (5.9 F). 1958: 27.3 C, +0.3 C from the station mean1960: 27.0 C, -0.1 C from the station mean1961: 27.0 C, -0.1 C from the station mean1962: 26.9 C, -0.1 C from the station mean1963: 26.9 C, -0.1 C from the station mean1964: 26.9 C, -0.1 C from the station mean1965: 27.2 C, +0.2 C from the station mean1966: 27.4 C, +0.3 C from the station mean1967: 26.8 C, -0.3 C from the station mean1968: 26.4 C, -0.6 C from the station mean1969: 26.6 C, -0.5 C from the station mean1970: 26.5 C, -0.6 C from the station mean1971: 26.0 C, -1.1 C from the station mean1973: 26.5 C, -0.6 C from the station mean1990: 25.8 C, -1.2 C from the station mean1994: 25.5 C, -1.5 C from the station mean1998: 23.8 C, -3.2 C from the station mean1999: 26.3 C, -0.7 C from the station mean2000: 27.0 C, 0.0 C from the station mean2001: 27.1 C, +0.1 C from the station mean2002: 27.6 C, +0.5 C from the station mean2003: 27.9 C, +0.9 C from the station mean2004: 28.0 C, +1.0 C from the station mean2005: 27.8 C, +0.7 C from the station mean2006: 27.9 C, +0.9 C from the station mean2007: 29.0 C, +1.9 C from the station mean2009: 28.3 C, +1.3 C from the station mean2010: 28.6 C, +1.6 C from the station mean2011: 27.0 C, 0.0 C from the station mean2012: 28.2 C, +1.2 C from the station mean19581965197019751980198519901995200020052010
One stripe for each of 30 complete years at Ixtlahuacan (Smn), 1958 to 2012. Blue stripes are years cooler than the station's own mean of 27.0 C (80.7 F); red stripes are warmer. The coolest year was 1998, at 23.8 C (74.9 F), and the warmest was 2007, at 29.0 C (84.1 F). The strongest colour marks a difference of 3.3 C (5.9 F).
Annual mean temperature at Ixtlahuacan (Smn) as warming stripes, 1958 to 2012
YearAnnual mean temperatureDifference from the station mean
195827.3 C+0.30 C
196027.0 C-0.07 C
196127.0 C-0.05 C
196226.9 C-0.13 C
196326.9 C-0.11 C
196426.9 C-0.14 C
196527.2 C+0.18 C
196627.4 C+0.34 C
196726.8 C-0.26 C
196826.4 C-0.62 C
196926.6 C-0.45 C
197026.5 C-0.56 C
197126.0 C-1.05 C
197326.5 C-0.56 C
199025.8 C-1.22 C
199425.5 C-1.52 C
199823.8 C-3.22 C
199926.3 C-0.71 C
200027.0 C0.00 C
200127.1 C+0.10 C
200227.6 C+0.52 C
200327.9 C+0.86 C
200428.0 C+0.97 C
200527.8 C+0.74 C
200627.9 C+0.87 C
200729.0 C+1.91 C
200928.3 C+1.30 C
201028.6 C+1.56 C
201127.0 C-0.04 C
201228.2 C+1.20 C

The fitted trend in annual mean temperature here over 1958 to 2012 is 0.17 C (-0.02 to 0.36) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.31 F (-0.03 to 0.64) per decade. The slope is a straight line fitted to 30 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Ixtlahuacan (Smn)
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.17 C (-0.02 to 0.36) per decade0.31 F (-0.03 to 0.64) per decade1958 to 201230Not clearly different from zero
Mean daily maximum0.4 C (0.1 to 0.6) per decade0.7 F (0.2 to 1.1) per decade1958 to 201230Rise
Mean daily minimum-0.03 C (-0.24 to 0.18) per decade-0.1 F (-0.4 to 0.3) per decade1958 to 201230Not clearly different from zero

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

1944 to 2013
Yearly extremes at Ixtlahuacan (Smn): the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.0 C (113.0 F)200838.9 C (102.0 F)46
Coldest night (TNn)3.9 C (39.0 F)199411.7 C (53.1 F)46
Wettest day (Rx1day)300.0 mm (11.8 in)196977.0 mm (3.0 in)60
Wettest five days (Rx5day)414.1 mm (16.3 in)1999115.8 mm (4.6 in)60
Longest dry spell (CDD)171 days1957130 days60

Hottest day (TXx)

Hottest day (TXx) at Ixtlahuacan (Smn) by year The hottest day of the year at Ixtlahuacan (Smn), 1944 to 2013. The record is 45.0 C (113.0 F) in 2008, marked on the chart; the median year is 38.9 C (102.0 F). 3537.54042.545196019802000Record: 45.0 C (113.0 F) in 2008
The hottest day of the year at Ixtlahuacan (Smn), 1944 to 2013. The record is 45.0 C (113.0 F) in 2008, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Ixtlahuacan (Smn) by year
YearHottest day (TXx)
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
195740.0 C (104.0 F)
195838.9 C (102.0 F)
195937.8 C (100.0 F)
196038.9 C (102.0 F)
196138.9 C (102.0 F)
196238.9 C (102.0 F)
196337.8 C (100.0 F)
196437.8 C (100.0 F)
196538.9 C (102.0 F)
196638.9 C (102.0 F)
196738.9 C (102.0 F)
196836.7 C (98.1 F)
196938.9 C (102.0 F)
197038.9 C (102.0 F)
197138.9 C (102.0 F)
197238.9 C (102.0 F)
197337.8 C (100.0 F)
197437.8 C (100.0 F)
1975n/a
198636.7 C (98.1 F)
198737.8 C (100.0 F)
198838.9 C (102.0 F)
198943.3 C (109.9 F)
199042.8 C (109.0 F)
199138.3 C (100.9 F)
199240.0 C (104.0 F)
199340.0 C (104.0 F)
199443.9 C (111.0 F)
199539.4 C (102.9 F)
199639.4 C (102.9 F)
199740.0 C (104.0 F)
199841.7 C (107.1 F)
199938.9 C (102.0 F)
200040.0 C (104.0 F)
200140.0 C (104.0 F)
200238.9 C (102.0 F)
200337.8 C (100.0 F)
200437.8 C (100.0 F)
200537.8 C (100.0 F)
200638.9 C (102.0 F)
200743.9 C (111.0 F)
200845.0 C (113.0 F)
200941.7 C (107.1 F)
201043.9 C (111.0 F)
201140.0 C (104.0 F)
201240.6 C (105.1 F)
201338.9 C (102.0 F)

Coldest night (TNn)

Coldest night (TNn) at Ixtlahuacan (Smn) by year The coldest night of the year at Ixtlahuacan (Smn), 1944 to 2013. The record is 3.9 C (39.0 F) in 1994, marked on the chart; the median year is 11.7 C (53.1 F). 05101520196019802000Record: 3.9 C (39.0 F) in 1994
The coldest night of the year at Ixtlahuacan (Smn), 1944 to 2013. The record is 3.9 C (39.0 F) in 1994, marked on the chart; the median year is 11.7 C (53.1 F).
Coldest night (TNn) at Ixtlahuacan (Smn) by year
YearColdest night (TNn)
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
195713.9 C (57.0 F)
195812.8 C (55.0 F)
195912.8 C (55.0 F)
196012.8 C (55.0 F)
196110.0 C (50.0 F)
196210.0 C (50.0 F)
196311.7 C (53.1 F)
196410.6 C (51.1 F)
196511.7 C (53.1 F)
196611.7 C (53.1 F)
196710.6 C (51.1 F)
196811.7 C (53.1 F)
196911.7 C (53.1 F)
197010.0 C (50.0 F)
197110.0 C (50.0 F)
197210.0 C (50.0 F)
19737.8 C (46.0 F)
197411.7 C (53.1 F)
1975n/a
198618.9 C (66.0 F)
198711.7 C (53.1 F)
198810.0 C (50.0 F)
198910.0 C (50.0 F)
19907.8 C (46.0 F)
199110.6 C (51.1 F)
199210.6 C (51.1 F)
19937.8 C (46.0 F)
19943.9 C (39.0 F)
19958.9 C (48.0 F)
199613.9 C (57.0 F)
199710.0 C (50.0 F)
199811.7 C (53.1 F)
199910.0 C (50.0 F)
200010.6 C (51.1 F)
200111.7 C (53.1 F)
200213.9 C (57.0 F)
200315.6 C (60.1 F)
200416.7 C (62.1 F)
200515.0 C (59.0 F)
200615.6 C (60.1 F)
200716.7 C (62.1 F)
200817.8 C (64.0 F)
200910.6 C (51.1 F)
201011.7 C (53.1 F)
20118.9 C (48.0 F)
201213.9 C (57.0 F)
201318.9 C (66.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Ixtlahuacan (Smn) by year The wettest day of the year at Ixtlahuacan (Smn), 1944 to 2013. The record is 300.0 mm (11.8 in) in 1969, marked on the chart; the median year is 77.0 mm (3.0 in). 0100200300196019802000Record: 300.0 mm (11.8 in) in 1969
The wettest day of the year at Ixtlahuacan (Smn), 1944 to 2013. The record is 300.0 mm (11.8 in) in 1969, marked on the chart; the median year is 77.0 mm (3.0 in).
Wettest day (Rx1day) at Ixtlahuacan (Smn) by year
YearWettest day (Rx1day)
194421.1 mm (0.8 in)
19450.0 mm (0.00 in)
194677.0 mm (3.0 in)
194771.1 mm (2.8 in)
194860.2 mm (2.4 in)
194969.9 mm (2.8 in)
195064.3 mm (2.5 in)
195175.2 mm (3.0 in)
1952110.0 mm (4.3 in)
195372.9 mm (2.9 in)
195431.0 mm (1.2 in)
195562.0 mm (2.4 in)
195619.1 mm (0.8 in)
195736.8 mm (1.4 in)
195888.9 mm (3.5 in)
1959101.9 mm (4.0 in)
196069.9 mm (2.8 in)
196169.3 mm (2.7 in)
196285.3 mm (3.4 in)
1963109.0 mm (4.3 in)
196450.3 mm (2.0 in)
196550.8 mm (2.0 in)
1966133.4 mm (5.3 in)
196782.8 mm (3.3 in)
1968142.0 mm (5.6 in)
1969300.0 mm (11.8 in)
197075.4 mm (3.0 in)
1971102.4 mm (4.0 in)
1972132.8 mm (5.2 in)
1973121.4 mm (4.8 in)
197496.3 mm (3.8 in)
197523.9 mm (0.9 in)
198620.1 mm (0.8 in)
198787.9 mm (3.5 in)
198834.8 mm (1.4 in)
198988.9 mm (3.5 in)
199057.4 mm (2.3 in)
1991111.3 mm (4.4 in)
199243.2 mm (1.7 in)
1993123.7 mm (4.9 in)
199489.4 mm (3.5 in)
199592.5 mm (3.6 in)
199692.5 mm (3.6 in)
199777.0 mm (3.0 in)
199890.9 mm (3.6 in)
1999222.0 mm (8.7 in)
2000190.0 mm (7.5 in)
200160.2 mm (2.4 in)
200269.9 mm (2.8 in)
200385.6 mm (3.4 in)
200447.0 mm (1.9 in)
200579.8 mm (3.1 in)
200627.2 mm (1.1 in)
200767.3 mm (2.6 in)
2008106.9 mm (4.2 in)
200982.8 mm (3.3 in)
2010105.9 mm (4.2 in)
2011244.9 mm (9.6 in)
201239.9 mm (1.6 in)
201330.0 mm (1.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Ixtlahuacan (Smn) by year The wettest five days of the year at Ixtlahuacan (Smn), 1944 to 2013. The record is 414.1 mm (16.3 in) in 1999, marked on the chart; the median year is 115.8 mm (4.6 in). 0200400600196019802000Record: 414.1 mm (16.3 in) in 1999
The wettest five days of the year at Ixtlahuacan (Smn), 1944 to 2013. The record is 414.1 mm (16.3 in) in 1999, marked on the chart; the median year is 115.8 mm (4.6 in).
Wettest five days (Rx5day) at Ixtlahuacan (Smn) by year
YearWettest five days (Rx5day)
194421.1 mm (0.8 in)
19450.0 mm (0.00 in)
1946144.3 mm (5.7 in)
1947115.3 mm (4.5 in)
1948164.6 mm (6.5 in)
194973.7 mm (2.9 in)
1950103.7 mm (4.1 in)
1951133.9 mm (5.3 in)
1952111.8 mm (4.4 in)
1953100.8 mm (4.0 in)
195455.7 mm (2.2 in)
1955115.6 mm (4.6 in)
195619.9 mm (0.8 in)
195771.8 mm (2.8 in)
1958154.3 mm (6.1 in)
1959167.2 mm (6.6 in)
1960164.4 mm (6.5 in)
1961116.0 mm (4.6 in)
1962193.6 mm (7.6 in)
1963167.5 mm (6.6 in)
1964104.5 mm (4.1 in)
196584.6 mm (3.3 in)
1966231.4 mm (9.1 in)
1967223.3 mm (8.8 in)
1968361.2 mm (14.2 in)
1969363.5 mm (14.3 in)
1970214.6 mm (8.4 in)
1971190.9 mm (7.5 in)
1972183.9 mm (7.2 in)
1973148.1 mm (5.8 in)
1974209.3 mm (8.2 in)
197526.2 mm (1.0 in)
198635.4 mm (1.4 in)
198793.5 mm (3.7 in)
198857.4 mm (2.3 in)
1989186.2 mm (7.3 in)
1990105.4 mm (4.1 in)
1991111.3 mm (4.4 in)
199264.5 mm (2.5 in)
1993196.6 mm (7.7 in)
1994198.9 mm (7.8 in)
1995185.0 mm (7.3 in)
1996185.0 mm (7.3 in)
199787.7 mm (3.5 in)
1998226.9 mm (8.9 in)
1999414.1 mm (16.3 in)
2000253.5 mm (10.0 in)
200186.9 mm (3.4 in)
2002106.2 mm (4.2 in)
2003107.5 mm (4.2 in)
200487.6 mm (3.4 in)
200592.8 mm (3.7 in)
200674.0 mm (2.9 in)
200791.9 mm (3.6 in)
2008191.3 mm (7.5 in)
2009134.4 mm (5.3 in)
2010195.1 mm (7.7 in)
2011360.1 mm (14.2 in)
201269.3 mm (2.7 in)
201350.4 mm (2.0 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Ixtlahuacan (Smn) by year The longest dry spell of the year at Ixtlahuacan (Smn), 1944 to 2013. The record is 171 days in 1957, marked on the chart; the median year is 130 days. 050100150200196019802000Record: 171 days in 1957
The longest dry spell of the year at Ixtlahuacan (Smn), 1944 to 2013. The record is 171 days in 1957, marked on the chart; the median year is 130 days.
Longest dry spell (CDD) at Ixtlahuacan (Smn) by year
YearLongest dry spell (CDD)
194466 days
194531 days
194641 days
1947148 days
1948107 days
1949160 days
1950154 days
1951170 days
1952151 days
1953167 days
1954161 days
1955140 days
1956161 days
1957171 days
195899 days
195998 days
1960162 days
196130 days
196230 days
196330 days
196430 days
196530 days
196630 days
196730 days
196830 days
1969171 days
1970152 days
1971167 days
197260 days
197378 days
1974146 days
197517 days
198616 days
198785 days
1988166 days
1989120 days
1990124 days
1991151 days
1992120 days
199363 days
1994162 days
1995163 days
199661 days
199761 days
1998160 days
1999163 days
2000155 days
2001160 days
2002134 days
2003126 days
2004122 days
2005162 days
2006166 days
2007158 days
2008147 days
2009156 days
2010117 days
2011159 days
2012122 days
201381 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

45 years, 1947 to 2012

A day with at least 77.9 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 309.8 mm (12.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Ixtlahuacan (Smn): the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years77.9 mm (3.1 in)
5 years120.6 mm (4.7 in)
10 years155.4 mm (6.1 in)
25 years208.3 mm (8.2 in)
50 years255.4 mm (10.1 in)Longer than the 45 years of record
100 years309.8 mm (12.2 in)Longer than the 45 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, 45 years of values from 1947 to 2012.

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: 300.0 mm (11.8 in) in 1969; 244.9 mm (9.6 in) in 2011; 222.0 mm (8.7 in) in 1999.

Download the Data

  • Data for Ixtlahuacan (Smn) standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Ixtlahuacan (Smn) 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). Records are computed by this site and are not official.

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