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Miahuatlan (Smn) Weather Records (MXN00020070)

Record envelope, standing records and threshold days for Miahuatlan (Smn) (MXN00020070), Mexico, with 66 years of record.

Key Facts for Miahuatlan (Smn)

  • Miahuatlan (Smn) (MXN00020070) is a weather station in Mexico at 16.32 latitude and -96.58 longitude, 1,559 m (5,114 ft) above sea level.
  • The station reports from 1946 to 2011, 66 years of record.
  • 1,464 records set at Miahuatlan (Smn) still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Miahuatlan (Smn) set a daily record low minimum temperature of 0.6 C (33.1 F) on 30 November 2011.

About the Station

  • Location: Mexico, 16.32 latitude, -96.58 longitude.
  • Elevation: 1,559 m (5,114 ft).
  • Period of record: 1946 to 2011, 66 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 Miahuatlan (Smn), with 2026 drawn through them The band shows the record high and record low for each calendar day at Miahuatlan (Smn). The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -1001020304050 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Miahuatlan (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 Miahuatlan (Smn), with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan35.0 C (95.0 F)-2.2 C (28.0 F)n/an/a
Feb36.7 C (98.1 F)-2.2 C (28.0 F)n/an/a
Mar37.8 C (100.0 F)0.6 C (33.1 F)n/an/a
Apr37.8 C (100.0 F)2.8 C (37.0 F)n/an/a
May41.7 C (107.1 F)6.7 C (44.1 F)n/an/a
Jun35.6 C (96.1 F)5.6 C (42.1 F)n/an/a
Jul35.6 C (96.1 F)8.9 C (48.0 F)n/an/a
Aug38.9 C (102.0 F)7.8 C (46.0 F)n/an/a
Sep35.6 C (96.1 F)5.0 C (41.0 F)n/an/a
Oct37.8 C (100.0 F)0.0 C (32.0 F)n/an/a
Nov37.8 C (100.0 F)0.0 C (32.0 F)n/an/a
Dec37.8 C (100.0 F)-1.1 C (30.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Miahuatlan (Smn) by the year they were set 1,464 records at Miahuatlan (Smn) still stand. 1991 holds the most, with 79. 0204060801946: 401947: 291948: 101949: 231950: 381951: 381952: 291953: 201954: 251955: 351956: 241957: 701958: 341959: 151960: 161961: 81962: 81963: 31964: 131965: 71966: 111967: 51968: 81969: 71970: 61971: 131972: 101973: 181974: 121975: 151976: 221977: 121978: 111979: 181980: 141981: 81982: 291983: 381984: 181985: 271986: 371987: 381988: 171989: 281990: 71991: 791992: 271993: 531994: 411995: 211996: 301997: 421998: 351999: 112000: 162001: 162002: 182003: 122004: 212005: 142006: 132007: 92008: 132009: 192010: 212011: 391946195319601967197419811988199520022009
1,464 records at Miahuatlan (Smn) still stand. 1991 holds the most, with 79.
Standing records at Miahuatlan (Smn) by the year they were set
Year setStanding records
194640
194729
194810
194923
195038
195138
195229
195320
195425
195535
195624
195770
195834
195915
196016
19618
19628
19633
196413
19657
196611
19675
19688
19697
19706
197113
197210
197318
197412
197515
197622
197712
197811
197918
198014
19818
198229
198338
198418
198527
198637
198738
198817
198928
19907
199179
199227
199353
199441
199521
199630
199742
199835
199911
200016
200116
200218
200312
200421
200514
200613
20079
200813
200919
201021
201139

All-Time Record Progression

3 new records
When Miahuatlan (Smn) set new all-time records 3 all-time records were set at Miahuatlan (Smn) between 17 August 1991 and 21 May 2011. Each dot is a new record. Record high maximum temperatureRecord high minimum temperature17 August 1991: Record high maximum temperature 38.9 C (102.0 F)20 May 1993: Record high minimum temperature 26.7 C (80.1 F)21 May 2011: Record high maximum temperature 41.7 C (107.1 F)1995200020052010
3 all-time records were set at Miahuatlan (Smn) between 17 August 1991 and 21 May 2011. Each dot is a new record.
When Miahuatlan (Smn) set new all-time records
DateKindDetail
1991-08-17Record high maximum temperatureRecord high maximum temperature 38.9 C (102.0 F)
1993-05-20Record high minimum temperatureRecord high minimum temperature 26.7 C (80.1 F)
2011-05-21Record high maximum temperatureRecord high maximum temperature 41.7 C (107.1 F)

Wettest Day of Each Month

Jun: 148.8 mm (5.9 in)
Record daily precipitation for each month at Miahuatlan (Smn) The wettest day on record for each calendar month at Miahuatlan (Smn). The most was 148.8 mm (5.9 in) on 16 June 1974. 050100150 Jan: 72.9 mm (2.9 in), 19 January 1958 Jan Feb: 40.9 mm (1.6 in), 25 February 1983 Feb Mar: 46.0 mm (1.8 in), 21 March 1972 Mar Apr: 62.0 mm (2.4 in), 11 April 1985 Apr May: 95.0 mm (3.7 in), 30 May 1949 May Jun: 148.8 mm (5.9 in), 16 June 1974 Jun Jul: 97.8 mm (3.9 in), 14 July 1970 Jul Aug: 94.0 mm (3.7 in), 27 August 1979 Aug Sep: 63.8 mm (2.5 in), 17 September 1967 Sep Oct: 61.0 mm (2.4 in), 31 October 1996 Oct Nov: 42.9 mm (1.7 in), 15 November 2006 Nov Dec: 31.5 mm (1.2 in), 26 December 1995 Dec
The wettest day on record for each calendar month at Miahuatlan (Smn). The most was 148.8 mm (5.9 in) on 16 June 1974.
Record daily precipitation for each month at Miahuatlan (Smn)
MonthRecord daily precipitation (mm)Date
Jan72.9 mm (2.9 in)19 January 1958
Feb40.9 mm (1.6 in)25 February 1983
Mar46.0 mm (1.8 in)21 March 1972
Apr62.0 mm (2.4 in)11 April 1985
May95.0 mm (3.7 in)30 May 1949
Jun148.8 mm (5.9 in)16 June 1974
Jul97.8 mm (3.9 in)14 July 1970
Aug94.0 mm (3.7 in)27 August 1979
Sep63.8 mm (2.5 in)17 September 1967
Oct61.0 mm (2.4 in)31 October 1996
Nov42.9 mm (1.7 in)15 November 2006
Dec31.5 mm (1.2 in)26 December 1995

Period of Record Coverage

1946 to 2011
Days with data per year at Miahuatlan (Smn) 66 years of record at Miahuatlan (Smn), 1946 to 2011. 5 years have data for under 90 percent of days and are left out of rankings: 1990, 1993, 1996, 1997, 2005. 1946: 365 of 365 days1947: 365 of 365 days1948: 366 of 366 days1949: 365 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 364 of 365 days1954: 365 of 365 days1955: 335 of 365 days1956: 336 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 363 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 364 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 61 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 304 of 365 days1994: 335 of 365 days1995: 365 of 365 days1996: 305 of 366 days1997: 304 of 365 days1998: 364 of 365 days1999: 364 of 365 days2000: 365 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 303 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 334 of 365 days1950196019701980199020002010
66 years of record at Miahuatlan (Smn), 1946 to 2011. 5 years have data for under 90 percent of days and are left out of rankings: 1990, 1993, 1996, 1997, 2005.
Days with data per year at Miahuatlan (Smn)
YearDays with dataShare of yearComplete
1946365100%Yes
1947365100%Yes
1948366100%Yes
1949365100%Yes
1950365100%Yes
1951365100%Yes
1952366100%Yes
1953364100%Yes
1954365100%Yes
195533592%Yes
195633692%Yes
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
198336399%Yes
1984366100%Yes
1985365100%Yes
1986364100%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes
19906117%No
1991365100%Yes
1992366100%Yes
199330483%No
199433592%Yes
1995365100%Yes
199630583%No
199730483%No
1998364100%Yes
1999364100%Yes
2000365100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
200530383%No
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
201133492%Yes

Latest Records

20
Latest records at Miahuatlan (Smn)
DateStationRecordValueBeat old record byOld record stoodSignificance
30 November 2011Miahuatlan (Smn), MXdaily low min0.6 C (33.1 F)1.1 C (2.0 F)60 years27 of 100 (Routine)
29 November 2011Miahuatlan (Smn), MXdaily low min0.6 C (33.1 F)2.2 C (4.0 F)57 years30 of 100 (Routine)
17 November 2011Miahuatlan (Smn), MXmonthly high max (Tie)37.8 C (100.0 F)tie20 years5 of 100 (Routine)
6 November 2011Miahuatlan (Smn), MXdaily high max (Tie)30.6 C (87.1 F)tie60 years6 of 100 (Routine)
1 November 2011Miahuatlan (Smn), MXdaily high max35.0 C (95.0 F)4.4 C (7.9 F)62 years38 of 100 (Notable)
28 October 2011Miahuatlan (Smn), MXmonthly low min (Tie)0.0 C (32.0 F)tie0 years4 of 100 (Routine)
27 October 2011Miahuatlan (Smn), MXmonthly low min (Tie)0.0 C (32.0 F)tie0 years4 of 100 (Routine)
26 October 2011Miahuatlan (Smn), MXmonthly low min (Tie)0.0 C (32.0 F)tie0 years4 of 100 (Routine)
25 October 2011Miahuatlan (Smn), MXmonthly low min (Tie)0.0 C (32.0 F)tie0 years4 of 100 (Routine)
24 October 2011Miahuatlan (Smn), MXmonthly low min (Tie)0.0 C (32.0 F)tie0 years4 of 100 (Routine)
23 October 2011Miahuatlan (Smn), MXmonthly low min (Tie)0.0 C (32.0 F)tie0 years4 of 100 (Routine)
22 October 2011Miahuatlan (Smn), MXmonthly low min0.0 C (32.0 F)0.6 C (1.1 F)0 years18 of 100 (Routine)
21 October 2011Miahuatlan (Smn), MXmonthly low min (Tie)0.6 C (33.1 F)tie0 years4 of 100 (Routine)
20 October 2011Miahuatlan (Smn), MXmonthly low min (Tie)0.6 C (33.1 F)tie0 years4 of 100 (Routine)
19 October 2011Miahuatlan (Smn), MXmonthly low min0.6 C (33.1 F)0.5 C (0.9 F)0 years17 of 100 (Routine)
18 October 2011Miahuatlan (Smn), MXmonthly low min (Tie)1.1 C (34.0 F)tie0 years4 of 100 (Routine)
17 October 2011Miahuatlan (Smn), MXmonthly low min1.1 C (34.0 F)1.7 C (3.1 F)54 years38 of 100 (Notable)
16 October 2011Miahuatlan (Smn), MXdaily low min3.9 C (39.0 F)1.7 C (3.1 F)0 years12 of 100 (Routine)
5 October 2011Miahuatlan (Smn), MXdaily high max (Tie)31.7 C (89.1 F)tie1 year1 of 100 (Routine)
18 September 2011Miahuatlan (Smn), MXdaily low min10.0 C (50.0 F)0.6 C (1.1 F)53 years25 of 100 (Routine)

Climate Trend

56 complete years, 1946 to 2010
Annual mean temperature at Miahuatlan (Smn) as warming stripes, 1946 to 2010 One stripe for each of 56 complete years at Miahuatlan (Smn), 1946 to 2010. Blue stripes are years cooler than the station's own mean of 19.4 C (66.8 F); red stripes are warmer. The coolest year was 2004, at 17.5 C (63.5 F), and the warmest was 1991, at 21.7 C (71.0 F). The strongest colour marks a difference of 2.4 C (4.3 F). 1946: 20.3 C, +1.0 C from the station mean1947: 20.3 C, +0.9 C from the station mean1948: 20.1 C, +0.7 C from the station mean1949: 19.5 C, +0.1 C from the station mean1950: 19.0 C, -0.3 C from the station mean1951: 19.3 C, -0.1 C from the station mean1952: 18.9 C, -0.4 C from the station mean1953: 19.7 C, +0.4 C from the station mean1954: 18.9 C, -0.5 C from the station mean1957: 18.3 C, -1.1 C from the station mean1958: 18.7 C, -0.7 C from the station mean1959: 18.9 C, -0.5 C from the station mean1960: 18.8 C, -0.5 C from the station mean1961: 19.0 C, -0.4 C from the station mean1962: 18.9 C, -0.4 C from the station mean1963: 18.8 C, -0.6 C from the station mean1964: 19.0 C, -0.3 C from the station mean1965: 19.0 C, -0.3 C from the station mean1966: 18.7 C, -0.6 C from the station mean1967: 18.6 C, -0.7 C from the station mean1968: 18.8 C, -0.5 C from the station mean1969: 19.5 C, +0.1 C from the station mean1970: 19.0 C, -0.4 C from the station mean1971: 18.8 C, -0.5 C from the station mean1972: 19.8 C, +0.4 C from the station mean1973: 19.4 C, 0.0 C from the station mean1974: 18.5 C, -0.8 C from the station mean1975: 18.5 C, -0.8 C from the station mean1976: 18.6 C, -0.8 C from the station mean1977: 19.0 C, -0.3 C from the station mean1978: 19.7 C, +0.4 C from the station mean1979: 20.3 C, +0.9 C from the station mean1980: 20.2 C, +0.8 C from the station mean1981: 19.9 C, +0.5 C from the station mean1982: 21.0 C, +1.6 C from the station mean1983: 20.8 C, +1.4 C from the station mean1984: 20.3 C, +0.9 C from the station mean1985: 20.3 C, +1.0 C from the station mean1986: 20.6 C, +1.2 C from the station mean1987: 20.7 C, +1.3 C from the station mean1988: 20.5 C, +1.1 C from the station mean1989: 20.0 C, +0.6 C from the station mean1991: 21.7 C, +2.3 C from the station mean1992: 20.9 C, +1.5 C from the station mean1998: 20.0 C, +0.6 C from the station mean1999: 19.3 C, 0.0 C from the station mean2000: 19.3 C, -0.1 C from the station mean2001: 18.8 C, -0.6 C from the station mean2002: 18.4 C, -1.0 C from the station mean2003: 17.7 C, -1.7 C from the station mean2004: 17.5 C, -1.8 C from the station mean2006: 18.5 C, -0.9 C from the station mean2007: 19.3 C, -0.1 C from the station mean2008: 18.5 C, -0.8 C from the station mean2009: 18.8 C, -0.6 C from the station mean2010: 18.6 C, -0.7 C from the station mean19461950196019701980199020002010
One stripe for each of 56 complete years at Miahuatlan (Smn), 1946 to 2010. Blue stripes are years cooler than the station's own mean of 19.4 C (66.8 F); red stripes are warmer. The coolest year was 2004, at 17.5 C (63.5 F), and the warmest was 1991, at 21.7 C (71.0 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Miahuatlan (Smn) as warming stripes, 1946 to 2010
YearAnnual mean temperatureDifference from the station mean
194620.3 C+0.99 C
194720.3 C+0.95 C
194820.1 C+0.75 C
194919.5 C+0.11 C
195019.0 C-0.31 C
195119.3 C-0.07 C
195218.9 C-0.41 C
195319.7 C+0.38 C
195418.9 C-0.48 C
195718.3 C-1.06 C
195818.7 C-0.67 C
195918.9 C-0.48 C
196018.8 C-0.53 C
196119.0 C-0.38 C
196218.9 C-0.41 C
196318.8 C-0.55 C
196419.0 C-0.33 C
196519.0 C-0.33 C
196618.7 C-0.64 C
196718.6 C-0.72 C
196818.8 C-0.52 C
196919.5 C+0.11 C
197019.0 C-0.39 C
197118.8 C-0.52 C
197219.8 C+0.45 C
197319.4 C+0.02 C
197418.5 C-0.84 C
197518.5 C-0.84 C
197618.6 C-0.80 C
197719.0 C-0.33 C
197819.7 C+0.36 C
197920.3 C+0.91 C
198020.2 C+0.83 C
198119.9 C+0.52 C
198221.0 C+1.60 C
198320.8 C+1.41 C
198420.3 C+0.90 C
198520.3 C+0.99 C
198620.6 C+1.20 C
198720.7 C+1.31 C
198820.5 C+1.15 C
198920.0 C+0.64 C
199121.7 C+2.34 C
199220.9 C+1.51 C
199820.0 C+0.64 C
199919.3 C-0.01 C
200019.3 C-0.09 C
200118.8 C-0.59 C
200218.4 C-0.95 C
200317.7 C-1.67 C
200417.5 C-1.84 C
200618.5 C-0.87 C
200719.3 C-0.08 C
200818.5 C-0.84 C
200918.8 C-0.58 C
201018.6 C-0.71 C

The fitted trend in annual mean temperature here over 1946 to 2010 is -0.02 C (-0.14 to 0.11) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.03 F (-0.26 to 0.19) per decade. The slope is a straight line fitted to 56 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Miahuatlan (Smn)
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.02 C (-0.14 to 0.11) per decade-0.03 F (-0.26 to 0.19) per decade1946 to 201056Not clearly different from zero
Mean daily maximum0.1 C (-0.1 to 0.3) per decade0.2 F (-0.2 to 0.5) per decade1946 to 201056Not clearly different from zero
Mean daily minimum-0.13 C (-0.24 to -0.02) per decade-0.23 F (-0.42 to -0.03) per decade1946 to 201056Fall

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

1946 to 2011
Yearly extremes at Miahuatlan (Smn): the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.7 C (107.1 F)201135.0 C (95.0 F)66
Coldest night (TNn)-2.2 C (28.0 F)19560.6 C (33.1 F)66
Wettest day (Rx1day)148.8 mm (5.9 in)197448.3 mm (1.9 in)66
Wettest five days (Rx5day)290.1 mm (11.4 in)197485.9 mm (3.4 in)66
Longest dry spell (CDD)150 days197192 days66

Hottest day (TXx)

Hottest day (TXx) at Miahuatlan (Smn) by year The hottest day of the year at Miahuatlan (Smn), 1946 to 2011. The record is 41.7 C (107.1 F) in 2011, marked on the chart; the median year is 35.0 C (95.0 F). 3032.53537.54042.5196019802000Record: 41.7 C (107.1 F) in 2011
The hottest day of the year at Miahuatlan (Smn), 1946 to 2011. The record is 41.7 C (107.1 F) in 2011, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Miahuatlan (Smn) by year
YearHottest day (TXx)
194635.0 C (95.0 F)
194735.0 C (95.0 F)
194835.0 C (95.0 F)
194935.0 C (95.0 F)
195033.9 C (93.0 F)
195134.4 C (93.9 F)
195233.9 C (93.0 F)
195335.0 C (95.0 F)
195435.0 C (95.0 F)
195534.4 C (93.9 F)
195633.3 C (91.9 F)
195735.0 C (95.0 F)
195833.9 C (93.0 F)
195932.8 C (91.0 F)
196033.9 C (93.0 F)
196133.9 C (93.0 F)
196232.8 C (91.0 F)
196333.9 C (93.0 F)
196435.0 C (95.0 F)
196532.8 C (91.0 F)
196633.9 C (93.0 F)
196733.9 C (93.0 F)
196832.8 C (91.0 F)
196935.0 C (95.0 F)
197034.4 C (93.9 F)
197135.0 C (95.0 F)
197238.3 C (100.9 F)
197333.9 C (93.0 F)
197434.4 C (93.9 F)
197532.8 C (91.0 F)
197631.7 C (89.1 F)
197732.8 C (91.0 F)
197835.0 C (95.0 F)
197935.6 C (96.1 F)
198035.0 C (95.0 F)
198135.0 C (95.0 F)
198235.6 C (96.1 F)
198336.7 C (98.1 F)
198436.7 C (98.1 F)
198535.6 C (96.1 F)
198635.6 C (96.1 F)
198736.7 C (98.1 F)
198835.6 C (96.1 F)
198935.0 C (95.0 F)
199033.9 C (93.0 F)
199138.9 C (102.0 F)
199237.8 C (100.0 F)
199337.8 C (100.0 F)
199437.8 C (100.0 F)
199535.6 C (96.1 F)
199635.6 C (96.1 F)
199735.0 C (95.0 F)
199838.9 C (102.0 F)
199935.0 C (95.0 F)
200035.6 C (96.1 F)
200135.0 C (95.0 F)
200236.7 C (98.1 F)
200335.6 C (96.1 F)
200431.7 C (89.1 F)
200532.8 C (91.0 F)
200636.7 C (98.1 F)
200735.6 C (96.1 F)
200836.7 C (98.1 F)
200937.8 C (100.0 F)
201037.8 C (100.0 F)
201141.7 C (107.1 F)

Coldest night (TNn)

Coldest night (TNn) at Miahuatlan (Smn) by year The coldest night of the year at Miahuatlan (Smn), 1946 to 2011. The record is -2.2 C (28.0 F) in 1956, marked on the chart; the median year is 0.6 C (33.1 F). -4-20246196019802000Record: -2.2 C (28.0 F) in 1956
The coldest night of the year at Miahuatlan (Smn), 1946 to 2011. The record is -2.2 C (28.0 F) in 1956, marked on the chart; the median year is 0.6 C (33.1 F).
Coldest night (TNn) at Miahuatlan (Smn) by year
YearColdest night (TNn)
19463.9 C (39.0 F)
19475.0 C (41.0 F)
19484.4 C (39.9 F)
19490.6 C (33.1 F)
19500.0 C (32.0 F)
1951-1.1 C (30.0 F)
19522.8 C (37.0 F)
1953-1.1 C (30.0 F)
19540.0 C (32.0 F)
19552.8 C (37.0 F)
1956-2.2 C (28.0 F)
19570.0 C (32.0 F)
19583.3 C (37.9 F)
19592.8 C (37.0 F)
1960-2.2 C (28.0 F)
19610.0 C (32.0 F)
19620.0 C (32.0 F)
19630.0 C (32.0 F)
19640.0 C (32.0 F)
19651.1 C (34.0 F)
19661.7 C (35.1 F)
1967-1.1 C (30.0 F)
19680.0 C (32.0 F)
19692.8 C (37.0 F)
19702.2 C (36.0 F)
19713.9 C (39.0 F)
19721.7 C (35.1 F)
19730.0 C (32.0 F)
19742.2 C (36.0 F)
19753.9 C (39.0 F)
19760.0 C (32.0 F)
19772.8 C (37.0 F)
19785.0 C (41.0 F)
19792.2 C (36.0 F)
19801.7 C (35.1 F)
19812.8 C (37.0 F)
19820.0 C (32.0 F)
1983-2.2 C (28.0 F)
19840.6 C (33.1 F)
19851.7 C (35.1 F)
1986-2.2 C (28.0 F)
1987-2.2 C (28.0 F)
19880.6 C (33.1 F)
1989-1.1 C (30.0 F)
19903.3 C (37.9 F)
19912.8 C (37.0 F)
19925.0 C (41.0 F)
19933.9 C (39.0 F)
19942.8 C (37.0 F)
1995-1.1 C (30.0 F)
19962.8 C (37.0 F)
19975.0 C (41.0 F)
19980.0 C (32.0 F)
19990.6 C (33.1 F)
20000.0 C (32.0 F)
20013.9 C (39.0 F)
20020.0 C (32.0 F)
20030.0 C (32.0 F)
20040.6 C (33.1 F)
20050.6 C (33.1 F)
2006-1.1 C (30.0 F)
20073.9 C (39.0 F)
20081.7 C (35.1 F)
20090.6 C (33.1 F)
20100.0 C (32.0 F)
20110.0 C (32.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Miahuatlan (Smn) by year The wettest day of the year at Miahuatlan (Smn), 1946 to 2011. The record is 148.8 mm (5.9 in) in 1974, marked on the chart; the median year is 48.3 mm (1.9 in). 050100150196019802000Record: 148.8 mm (5.9 in) in 1974
The wettest day of the year at Miahuatlan (Smn), 1946 to 2011. The record is 148.8 mm (5.9 in) in 1974, marked on the chart; the median year is 48.3 mm (1.9 in).
Wettest day (Rx1day) at Miahuatlan (Smn) by year
YearWettest day (Rx1day)
194647.8 mm (1.9 in)
194783.8 mm (3.3 in)
194852.8 mm (2.1 in)
194995.0 mm (3.7 in)
195044.5 mm (1.8 in)
195155.9 mm (2.2 in)
195265.3 mm (2.6 in)
195338.9 mm (1.5 in)
195456.9 mm (2.2 in)
195545.0 mm (1.8 in)
195643.9 mm (1.7 in)
195735.8 mm (1.4 in)
195872.9 mm (2.9 in)
195974.9 mm (2.9 in)
196084.3 mm (3.3 in)
196133.8 mm (1.3 in)
196253.3 mm (2.1 in)
196350.8 mm (2.0 in)
196452.8 mm (2.1 in)
196541.9 mm (1.6 in)
196652.8 mm (2.1 in)
196763.8 mm (2.5 in)
196840.9 mm (1.6 in)
196980.8 mm (3.2 in)
197097.8 mm (3.9 in)
197140.9 mm (1.6 in)
197257.4 mm (2.3 in)
197331.8 mm (1.3 in)
1974148.8 mm (5.9 in)
197542.4 mm (1.7 in)
197639.4 mm (1.6 in)
197726.4 mm (1.0 in)
197833.8 mm (1.3 in)
197994.0 mm (3.7 in)
198047.5 mm (1.9 in)
198174.4 mm (2.9 in)
198230.0 mm (1.2 in)
198342.9 mm (1.7 in)
198455.9 mm (2.2 in)
198562.0 mm (2.4 in)
198669.9 mm (2.8 in)
198719.8 mm (0.8 in)
198850.3 mm (2.0 in)
198995.8 mm (3.8 in)
19906.9 mm (0.27 in)
199166.8 mm (2.6 in)
199239.9 mm (1.6 in)
199348.8 mm (1.9 in)
199435.8 mm (1.4 in)
199535.3 mm (1.4 in)
199661.0 mm (2.4 in)
199753.6 mm (2.1 in)
199847.5 mm (1.9 in)
199937.8 mm (1.5 in)
200041.7 mm (1.6 in)
200154.9 mm (2.2 in)
200240.1 mm (1.6 in)
200364.8 mm (2.6 in)
200435.8 mm (1.4 in)
200544.5 mm (1.8 in)
200652.8 mm (2.1 in)
200733.3 mm (1.3 in)
200856.4 mm (2.2 in)
200939.4 mm (1.6 in)
201047.5 mm (1.9 in)
201141.4 mm (1.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Miahuatlan (Smn) by year The wettest five days of the year at Miahuatlan (Smn), 1946 to 2011. The record is 290.1 mm (11.4 in) in 1974, marked on the chart; the median year is 85.9 mm (3.4 in). 0100200300196019802000Record: 290.1 mm (11.4 in) in 1974
The wettest five days of the year at Miahuatlan (Smn), 1946 to 2011. The record is 290.1 mm (11.4 in) in 1974, marked on the chart; the median year is 85.9 mm (3.4 in).
Wettest five days (Rx5day) at Miahuatlan (Smn) by year
YearWettest five days (Rx5day)
194691.5 mm (3.6 in)
1947160.5 mm (6.3 in)
194876.9 mm (3.0 in)
1949105.6 mm (4.2 in)
195054.6 mm (2.1 in)
1951113.8 mm (4.5 in)
195287.0 mm (3.4 in)
195376.5 mm (3.0 in)
195472.2 mm (2.8 in)
1955123.4 mm (4.9 in)
195679.3 mm (3.1 in)
195765.8 mm (2.6 in)
1958100.9 mm (4.0 in)
195983.1 mm (3.3 in)
1960125.8 mm (5.0 in)
196184.8 mm (3.3 in)
1962117.1 mm (4.6 in)
1963106.5 mm (4.2 in)
196475.0 mm (3.0 in)
196548.3 mm (1.9 in)
1966110.5 mm (4.4 in)
196787.1 mm (3.4 in)
196877.2 mm (3.0 in)
1969161.3 mm (6.4 in)
1970135.2 mm (5.3 in)
1971126.0 mm (5.0 in)
197294.0 mm (3.7 in)
197362.9 mm (2.5 in)
1974290.1 mm (11.4 in)
197556.1 mm (2.2 in)
197673.5 mm (2.9 in)
197756.6 mm (2.2 in)
197867.4 mm (2.7 in)
1979148.1 mm (5.8 in)
198071.2 mm (2.8 in)
1981177.4 mm (7.0 in)
198254.1 mm (2.1 in)
198379.8 mm (3.1 in)
198484.4 mm (3.3 in)
198581.4 mm (3.2 in)
1986123.3 mm (4.9 in)
198732.0 mm (1.3 in)
1988123.2 mm (4.9 in)
1989145.1 mm (5.7 in)
19906.9 mm (0.27 in)
199174.5 mm (2.9 in)
199263.5 mm (2.5 in)
1993113.5 mm (4.5 in)
199457.6 mm (2.3 in)
199564.9 mm (2.6 in)
1996124.5 mm (4.9 in)
1997105.0 mm (4.1 in)
199874.5 mm (2.9 in)
199982.2 mm (3.2 in)
2000103.6 mm (4.1 in)
2001137.0 mm (5.4 in)
200290.0 mm (3.5 in)
2003116.1 mm (4.6 in)
200459.7 mm (2.4 in)
200588.0 mm (3.5 in)
2006101.6 mm (4.0 in)
200765.8 mm (2.6 in)
200893.1 mm (3.7 in)
200979.0 mm (3.1 in)
201090.9 mm (3.6 in)
201164.3 mm (2.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Miahuatlan (Smn) by year The longest dry spell of the year at Miahuatlan (Smn), 1946 to 2011. The record is 150 days in 1971, marked on the chart; the median year is 92 days. 050100150196019802000Record: 150 days in 1971
The longest dry spell of the year at Miahuatlan (Smn), 1946 to 2011. The record is 150 days in 1971, marked on the chart; the median year is 92 days.
Longest dry spell (CDD) at Miahuatlan (Smn) by year
YearLongest dry spell (CDD)
194694 days
1947109 days
194898 days
194984 days
1950106 days
1951127 days
1952113 days
1953114 days
195480 days
1955105 days
195690 days
1957100 days
195861 days
1959101 days
1960106 days
196193 days
196289 days
196392 days
1964102 days
196589 days
196692 days
196796 days
196859 days
196977 days
197079 days
1971150 days
197280 days
197395 days
197492 days
1975101 days
197662 days
1977117 days
197880 days
1979104 days
198074 days
1981102 days
198258 days
198375 days
1984133 days
198587 days
198656 days
1987103 days
198890 days
1989121 days
199032 days
1991125 days
199270 days
199353 days
1994130 days
199564 days
199666 days
199797 days
1998148 days
199981 days
2000103 days
2001103 days
200256 days
2003102 days
200487 days
200574 days
200658 days
200770 days
200882 days
2009108 days
201064 days
201163 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

63 years, 1946 to 2011

A day with at least 49.2 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 134.2 mm (5.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Miahuatlan (Smn): the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years49.2 mm (1.9 in)
5 years67.1 mm (2.6 in)
10 years80.8 mm (3.2 in)
25 years100.2 mm (3.9 in)
50 years116.4 mm (4.6 in)
100 years134.2 mm (5.3 in)Longer than the 63 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, 63 years of values from 1946 to 2011.

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: 148.8 mm (5.9 in) in 1974; 97.8 mm (3.9 in) in 1970; 95.8 mm (3.8 in) in 1989.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

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

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