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Tlacotepec Weather Records (MXN00012089)

Record envelope, standing records and threshold days for Tlacotepec (MXN00012089), Mexico, with 65 years of record.

Key Facts for Tlacotepec

  • Tlacotepec (MXN00012089) is a weather station in Mexico at 17.78 latitude and -99.97 longitude, 1,539 m (5,049 ft) above sea level.
  • The station reports from 1948 to 2012, 65 years of record.
  • 1,464 records set at Tlacotepec still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Tlacotepec tied a daily record low minimum temperature of 8.9 C (48.0 F) on 29 November 2012.

About the Station

  • Location: Mexico, 17.78 latitude, -99.97 longitude.
  • Elevation: 1,539 m (5,049 ft).
  • Period of record: 1948 to 2012, 65 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 Tlacotepec, with 2026 drawn through them The band shows the record high and record low for each calendar day at Tlacotepec. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Tlacotepec. 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 Tlacotepec, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan30.6 C (87.1 F)5.6 C (42.1 F)n/an/a
Feb32.8 C (91.0 F)3.9 C (39.0 F)n/an/a
Mar35.6 C (96.1 F)7.8 C (46.0 F)n/an/a
Apr38.9 C (102.0 F)8.9 C (48.0 F)n/an/a
May36.7 C (98.1 F)10.0 C (50.0 F)n/an/a
Jun37.8 C (100.0 F)8.9 C (48.0 F)n/an/a
Jul30.0 C (86.0 F)8.9 C (48.0 F)n/an/a
Aug30.0 C (86.0 F)7.8 C (46.0 F)n/an/a
Sep29.4 C (84.9 F)8.9 C (48.0 F)n/an/a
Oct31.7 C (89.1 F)8.3 C (46.9 F)n/an/a
Nov30.0 C (86.0 F)6.7 C (44.1 F)n/an/a
Dec30.0 C (86.0 F)5.6 C (42.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Tlacotepec by the year they were set 1,464 records at Tlacotepec still stand. 2012 holds the most, with 172. 0501001502001964: 31967: 51968: 221969: 1471970: 1151971: 721972: 781973: 461974: 271975: 151976: 221977: 251978: 291979: 371980: 311981: 331982: 111983: 231984: 141985: 251986: 371987: 421988: 221989: 61990: 31991: 111992: 291993: 61994: 211995: 12002: 392003: 182004: 242005: 22006: 242007: 32008: 552009: 252010: 972011: 472012: 172196419711976198119861991200220072012
1,464 records at Tlacotepec still stand. 2012 holds the most, with 172.
Standing records at Tlacotepec by the year they were set
Year setStanding records
19643
19675
196822
1969147
1970115
197172
197278
197346
197427
197515
197622
197725
197829
197937
198031
198133
198211
198323
198414
198525
198637
198742
198822
19896
19903
199111
199229
19936
199421
19951
200239
200318
200424
20052
200624
20073
200855
200925
201097
201147
2012172

All-Time Record Progression

2 new records
When Tlacotepec set new all-time records 2 all-time records were set at Tlacotepec between 15 August 1993 and 29 June 2004. Each dot is a new record. Record daily precipitation15 August 1993: Record daily precipitation 119.9 mm (4.7 in)29 June 2004: Record daily precipitation 164.3 mm (6.5 in)199520002005
2 all-time records were set at Tlacotepec between 15 August 1993 and 29 June 2004. Each dot is a new record.
When Tlacotepec set new all-time records
DateKindDetail
1993-08-15Record daily precipitationRecord daily precipitation 119.9 mm (4.7 in)
2004-06-29Record daily precipitationRecord daily precipitation 164.3 mm (6.5 in)

Wettest Day of Each Month

Jun: 164.3 mm (6.5 in)
Record daily precipitation for each month at Tlacotepec The wettest day on record for each calendar month at Tlacotepec. The most was 164.3 mm (6.5 in) on 29 June 2004. 050100150200 Jan: 45.0 mm (1.8 in), 25 January 1980 Jan Feb: 116.3 mm (4.6 in), 3 February 2010 Feb Mar: 45.5 mm (1.8 in), 13 March 1950 Mar Apr: 37.8 mm (1.5 in), 29 April 2007 Apr May: 66.8 mm (2.6 in), 30 May 1978 May Jun: 164.3 mm (6.5 in), 29 June 2004 Jun Jul: 91.4 mm (3.6 in), 29 July 1970 Jul Aug: 119.9 mm (4.7 in), 15 August 1993 Aug Sep: 87.9 mm (3.5 in), 3 September 1955 Sep Oct: 55.9 mm (2.2 in), 3 October 1978 Oct Nov: 82.3 mm (3.2 in), 3 November 2002 Nov Dec: 22.9 mm (0.9 in), 19 December 1976 Dec
The wettest day on record for each calendar month at Tlacotepec. The most was 164.3 mm (6.5 in) on 29 June 2004.
Record daily precipitation for each month at Tlacotepec
MonthRecord daily precipitation (mm)Date
Jan45.0 mm (1.8 in)25 January 1980
Feb116.3 mm (4.6 in)3 February 2010
Mar45.5 mm (1.8 in)13 March 1950
Apr37.8 mm (1.5 in)29 April 2007
May66.8 mm (2.6 in)30 May 1978
Jun164.3 mm (6.5 in)29 June 2004
Jul91.4 mm (3.6 in)29 July 1970
Aug119.9 mm (4.7 in)15 August 1993
Sep87.9 mm (3.5 in)3 September 1955
Oct55.9 mm (2.2 in)3 October 1978
Nov82.3 mm (3.2 in)3 November 2002
Dec22.9 mm (0.9 in)19 December 1976

Period of Record Coverage

1964 to 2012
Days with data per year at Tlacotepec 41 years of record at Tlacotepec, 1964 to 2012. 11 years have data for under 90 percent of days and are left out of rankings: 1964, 1967, 1968, 1988, 1989, 1990, 1991, 1992 and others. 1964: 3 of 366 days1967: 34 of 365 days1968: 201 of 366 days1969: 356 of 365 days1970: 365 of 365 days1971: 363 of 365 days1972: 366 of 366 days1973: 364 of 365 days1974: 363 of 365 days1975: 364 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 364 of 365 days1982: 365 of 365 days1983: 364 of 365 days1984: 333 of 366 days1985: 364 of 365 days1986: 364 of 365 days1987: 364 of 365 days1988: 243 of 366 days1989: 91 of 365 days1990: 153 of 365 days1991: 243 of 365 days1992: 304 of 366 days1993: 215 of 365 days1994: 365 of 365 days1995: 120 of 365 days2002: 364 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 334 of 365 days2007: 243 of 365 days2008: 335 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 334 of 365 days2012: 333 of 366 days1970198019902010
41 years of record at Tlacotepec, 1964 to 2012. 11 years have data for under 90 percent of days and are left out of rankings: 1964, 1967, 1968, 1988, 1989, 1990, 1991, 1992 and others.
Days with data per year at Tlacotepec
YearDays with dataShare of yearComplete
196431%No
1967349%No
196820155%No
196935698%Yes
1970365100%Yes
197136399%Yes
1972366100%Yes
1973364100%Yes
197436399%Yes
1975364100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981364100%Yes
1982365100%Yes
1983364100%Yes
198433391%Yes
1985364100%Yes
1986364100%Yes
1987364100%Yes
198824366%No
19899125%No
199015342%No
199124367%No
199230483%No
199321559%No
1994365100%Yes
199512033%No
2002364100%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
200633492%Yes
200724367%No
200833592%Yes
2009365100%Yes
2010365100%Yes
201133492%Yes
201233391%Yes

Latest Records

20
Latest records at Tlacotepec
DateStationRecordValueBeat old record byOld record stoodSignificance
29 November 2012Tlacotepec, MXdaily low min (Tie)8.9 C (48.0 F)tie42 years4 of 100 (Routine)
28 November 2012Tlacotepec, MXdaily low min (Tie)8.9 C (48.0 F)tie6 years1 of 100 (Routine)
27 November 2012Tlacotepec, MXdaily low min (Tie)8.9 C (48.0 F)tie10 years1 of 100 (Routine)
25 November 2012Tlacotepec, MXdaily low max17.8 C (64.0 F)1.1 C (2.0 F)33 years17 of 100 (Routine)
23 November 2012Tlacotepec, MXdaily low min (Tie)7.8 C (46.0 F)tie43 years4 of 100 (Routine)
22 November 2012Tlacotepec, MXdaily low max (Tie)18.9 C (66.0 F)tie6 years1 of 100 (Routine)
21 November 2012Tlacotepec, MXdaily low min (Tie)7.8 C (46.0 F)tie4 years1 of 100 (Routine)
20 November 2012Tlacotepec, MXdaily low min (Tie)7.8 C (46.0 F)tie4 years1 of 100 (Routine)
19 November 2012Tlacotepec, MXdaily low min (Tie)7.8 C (46.0 F)tie4 years1 of 100 (Routine)
18 November 2012Tlacotepec, MXdaily low min (Tie)8.9 C (48.0 F)tie42 years4 of 100 (Routine)
17 November 2012Tlacotepec, MXdaily low min (Tie)8.9 C (48.0 F)tie42 years4 of 100 (Routine)
16 November 2012Tlacotepec, MXdaily low min (Tie)8.9 C (48.0 F)tie37 years3 of 100 (Routine)
11 November 2012Tlacotepec, MXdaily low min (Tie)7.8 C (46.0 F)tie2 years1 of 100 (Routine)
5 November 2012Tlacotepec, MXdaily low min (Tie)7.8 C (46.0 F)tie33 years3 of 100 (Routine)
4 November 2012Tlacotepec, MXdaily low min (Tie)8.9 C (48.0 F)tie4 years1 of 100 (Routine)
3 November 2012Tlacotepec, MXdaily low max17.8 C (64.0 F)1.1 C (2.0 F)10 years11 of 100 (Routine)
3 November 2012Tlacotepec, MXdaily low min (Tie)8.9 C (48.0 F)tie4 years1 of 100 (Routine)
2 November 2012Tlacotepec, MXdaily low max18.9 C (66.0 F)1.1 C (2.0 F)10 years11 of 100 (Routine)
2 November 2012Tlacotepec, MXdaily low min (Tie)8.9 C (48.0 F)tie4 years1 of 100 (Routine)
1 November 2012Tlacotepec, MXdaily low min (Tie)8.9 C (48.0 F)tie1 year1 of 100 (Routine)

Climate Trend

24 complete years, 1969 to 2010
Annual mean temperature at Tlacotepec as warming stripes, 1969 to 2010 One stripe for each of 24 complete years at Tlacotepec, 1969 to 2010. Blue stripes are years cooler than the station's own mean of 19.8 C (67.6 F); red stripes are warmer. The coolest year was 2010, at 16.3 C (61.4 F), and the warmest was 1969, at 21.4 C (70.6 F). The strongest colour marks a difference of 3.5 C (6.3 F). 1969: 21.4 C, +1.6 C from the station mean1970: 21.0 C, +1.2 C from the station mean1971: 20.8 C, +1.0 C from the station mean1973: 20.8 C, +1.0 C from the station mean1974: 20.3 C, +0.5 C from the station mean1975: 20.1 C, +0.3 C from the station mean1976: 20.1 C, +0.3 C from the station mean1977: 20.3 C, +0.5 C from the station mean1978: 20.4 C, +0.6 C from the station mean1979: 20.2 C, +0.4 C from the station mean1980: 20.3 C, +0.5 C from the station mean1981: 19.9 C, +0.1 C from the station mean1982: 20.1 C, +0.3 C from the station mean1983: 19.9 C, +0.1 C from the station mean1985: 20.2 C, +0.4 C from the station mean1986: 20.4 C, +0.6 C from the station mean1987: 20.2 C, +0.4 C from the station mean1994: 19.0 C, -0.8 C from the station mean2002: 18.2 C, -1.6 C from the station mean2003: 18.8 C, -1.0 C from the station mean2004: 19.1 C, -0.7 C from the station mean2005: 20.0 C, +0.2 C from the station mean2009: 17.1 C, -2.7 C from the station mean2010: 16.3 C, -3.5 C from the station mean196919751980198519901995200020052010
One stripe for each of 24 complete years at Tlacotepec, 1969 to 2010. Blue stripes are years cooler than the station's own mean of 19.8 C (67.6 F); red stripes are warmer. The coolest year was 2010, at 16.3 C (61.4 F), and the warmest was 1969, at 21.4 C (70.6 F). The strongest colour marks a difference of 3.5 C (6.3 F).
Annual mean temperature at Tlacotepec as warming stripes, 1969 to 2010
YearAnnual mean temperatureDifference from the station mean
196921.4 C+1.64 C
197021.0 C+1.20 C
197120.8 C+1.00 C
197320.8 C+0.96 C
197420.3 C+0.53 C
197520.1 C+0.30 C
197620.1 C+0.32 C
197720.3 C+0.48 C
197820.4 C+0.58 C
197920.2 C+0.45 C
198020.3 C+0.54 C
198119.9 C+0.13 C
198220.1 C+0.34 C
198319.9 C+0.12 C
198520.2 C+0.42 C
198620.4 C+0.62 C
198720.2 C+0.41 C
199419.0 C-0.80 C
200218.2 C-1.60 C
200318.8 C-0.95 C
200419.1 C-0.71 C
200520.0 C+0.18 C
200917.1 C-2.68 C
201016.3 C-3.46 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

1948 to 2012
Yearly extremes at Tlacotepec: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.9 C (102.0 F)198434.4 C (93.9 F)41
Coldest night (TNn)3.9 C (39.0 F)19706.7 C (44.1 F)40
Wettest day (Rx1day)164.3 mm (6.5 in)200451.8 mm (2.0 in)57
Wettest five days (Rx5day)230.8 mm (9.1 in)1970117.9 mm (4.6 in)57
Longest dry spell (CDD)365 days1961101 days57

Hottest day (TXx)

Hottest day (TXx) at Tlacotepec by year The hottest day of the year at Tlacotepec, 1948 to 2012. The record is 38.9 C (102.0 F) in 1984, marked on the chart; the median year is 34.4 C (93.9 F). 25303540196019802000Record: 38.9 C (102.0 F) in 1984
The hottest day of the year at Tlacotepec, 1948 to 2012. The record is 38.9 C (102.0 F) in 1984, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Tlacotepec by year
YearHottest day (TXx)
1948n/a
1949n/a
1950n/a
1951n/a
1953n/a
1954n/a
1955n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
196435.0 C (95.0 F)
1965n/a
1966n/a
196727.2 C (81.0 F)
196835.0 C (95.0 F)
196935.6 C (96.1 F)
197036.1 C (97.0 F)
197136.7 C (98.1 F)
197235.6 C (96.1 F)
197336.1 C (97.0 F)
197437.8 C (100.0 F)
197535.0 C (95.0 F)
197636.1 C (97.0 F)
197733.9 C (93.0 F)
197836.1 C (97.0 F)
197933.3 C (91.9 F)
198035.0 C (95.0 F)
198135.0 C (95.0 F)
198233.9 C (93.0 F)
198334.4 C (93.9 F)
198438.9 C (102.0 F)
198538.3 C (100.9 F)
198636.7 C (98.1 F)
198734.4 C (93.9 F)
198835.0 C (95.0 F)
198925.6 C (78.1 F)
199027.2 C (81.0 F)
199132.8 C (91.0 F)
199232.8 C (91.0 F)
199333.9 C (93.0 F)
199433.3 C (91.9 F)
199532.8 C (91.0 F)
200233.9 C (93.0 F)
200334.4 C (93.9 F)
200434.4 C (93.9 F)
200534.4 C (93.9 F)
200633.3 C (91.9 F)
200731.7 C (89.1 F)
200828.9 C (84.0 F)
200928.9 C (84.0 F)
201030.6 C (87.1 F)
201131.7 C (89.1 F)
201230.0 C (86.0 F)

Coldest night (TNn)

Coldest night (TNn) at Tlacotepec by year The coldest night of the year at Tlacotepec, 1948 to 2012. The record is 3.9 C (39.0 F) in 1970, marked on the chart; the median year is 6.7 C (44.1 F). 24681012196019802000Record: 3.9 C (39.0 F) in 1970
The coldest night of the year at Tlacotepec, 1948 to 2012. The record is 3.9 C (39.0 F) in 1970, marked on the chart; the median year is 6.7 C (44.1 F).
Coldest night (TNn) at Tlacotepec by year
YearColdest night (TNn)
1948n/a
1949n/a
1950n/a
1951n/a
1953n/a
1954n/a
1955n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
19678.3 C (46.9 F)
19687.8 C (46.0 F)
19696.7 C (44.1 F)
19703.9 C (39.0 F)
19716.7 C (44.1 F)
19725.0 C (41.0 F)
19735.6 C (42.1 F)
19748.3 C (46.9 F)
19756.7 C (44.1 F)
19766.7 C (44.1 F)
19777.8 C (46.0 F)
19787.2 C (45.0 F)
19796.7 C (44.1 F)
19806.7 C (44.1 F)
19816.7 C (44.1 F)
19826.7 C (44.1 F)
19836.7 C (44.1 F)
19847.8 C (46.0 F)
198510.0 C (50.0 F)
19867.2 C (45.0 F)
19875.6 C (42.1 F)
19886.7 C (44.1 F)
198910.6 C (51.1 F)
19906.7 C (44.1 F)
19917.8 C (46.0 F)
19926.7 C (44.1 F)
19937.8 C (46.0 F)
19948.3 C (46.9 F)
19958.9 C (48.0 F)
20025.6 C (42.1 F)
20036.7 C (44.1 F)
20045.6 C (42.1 F)
20057.8 C (46.0 F)
20067.8 C (46.0 F)
20078.3 C (46.9 F)
20086.7 C (44.1 F)
20097.8 C (46.0 F)
20105.6 C (42.1 F)
20116.7 C (44.1 F)
20126.7 C (44.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Tlacotepec by year The wettest day of the year at Tlacotepec, 1948 to 2012. The record is 164.3 mm (6.5 in) in 2004, marked on the chart; the median year is 51.8 mm (2.0 in). 050100150200196019802000Record: 164.3 mm (6.5 in) in 2004
The wettest day of the year at Tlacotepec, 1948 to 2012. The record is 164.3 mm (6.5 in) in 2004, marked on the chart; the median year is 51.8 mm (2.0 in).
Wettest day (Rx1day) at Tlacotepec by year
YearWettest day (Rx1day)
19480.0 mm (0.00 in)
194938.9 mm (1.5 in)
195047.5 mm (1.9 in)
195142.9 mm (1.7 in)
195322.9 mm (0.9 in)
195441.4 mm (1.6 in)
195587.9 mm (3.5 in)
195710.7 mm (0.4 in)
195810.7 mm (0.4 in)
19599.9 mm (0.39 in)
196017.8 mm (0.7 in)
19610.0 mm (0.00 in)
19620.0 mm (0.00 in)
196349.8 mm (2.0 in)
196417.8 mm (0.7 in)
196519.3 mm (0.8 in)
196615.0 mm (0.6 in)
196716.3 mm (0.6 in)
196842.9 mm (1.7 in)
196953.3 mm (2.1 in)
1970113.8 mm (4.5 in)
197189.9 mm (3.5 in)
197256.9 mm (2.2 in)
197392.5 mm (3.6 in)
1974101.9 mm (4.0 in)
197550.8 mm (2.0 in)
197651.8 mm (2.0 in)
197739.9 mm (1.6 in)
197866.8 mm (2.6 in)
197977.0 mm (3.0 in)
198049.8 mm (2.0 in)
198171.9 mm (2.8 in)
198264.8 mm (2.6 in)
198363.8 mm (2.5 in)
198420.8 mm (0.8 in)
19850.8 mm (0.03 in)
198619.3 mm (0.8 in)
198767.3 mm (2.6 in)
198860.5 mm (2.4 in)
198971.9 mm (2.8 in)
199079.8 mm (3.1 in)
199134.8 mm (1.4 in)
199241.9 mm (1.6 in)
1993119.9 mm (4.7 in)
199467.3 mm (2.6 in)
199542.9 mm (1.7 in)
200282.3 mm (3.2 in)
200365.8 mm (2.6 in)
2004164.3 mm (6.5 in)
200563.5 mm (2.5 in)
200664.3 mm (2.5 in)
200771.9 mm (2.8 in)
200884.3 mm (3.3 in)
200957.9 mm (2.3 in)
2010116.3 mm (4.6 in)
201152.6 mm (2.1 in)
201246.7 mm (1.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Tlacotepec by year The wettest five days of the year at Tlacotepec, 1948 to 2012. The record is 230.8 mm (9.1 in) in 1970, marked on the chart; the median year is 117.9 mm (4.6 in). 0100200300196019802000Record: 230.8 mm (9.1 in) in 1970
The wettest five days of the year at Tlacotepec, 1948 to 2012. The record is 230.8 mm (9.1 in) in 1970, marked on the chart; the median year is 117.9 mm (4.6 in).
Wettest five days (Rx5day) at Tlacotepec by year
YearWettest five days (Rx5day)
19480.0 mm (0.00 in)
1949116.8 mm (4.6 in)
1950145.1 mm (5.7 in)
1951119.1 mm (4.7 in)
195398.1 mm (3.9 in)
1954151.2 mm (6.0 in)
1955164.4 mm (6.5 in)
195747.6 mm (1.9 in)
195837.6 mm (1.5 in)
195946.5 mm (1.8 in)
196075.5 mm (3.0 in)
19610.0 mm (0.00 in)
19620.0 mm (0.00 in)
196349.8 mm (2.0 in)
196417.8 mm (0.7 in)
196519.8 mm (0.8 in)
196619.8 mm (0.8 in)
196731.1 mm (1.2 in)
196885.7 mm (3.4 in)
196988.6 mm (3.5 in)
1970230.8 mm (9.1 in)
1971133.9 mm (5.3 in)
1972145.6 mm (5.7 in)
1973133.7 mm (5.3 in)
1974168.0 mm (6.6 in)
1975109.7 mm (4.3 in)
1976148.7 mm (5.9 in)
197776.5 mm (3.0 in)
1978152.4 mm (6.0 in)
1979143.3 mm (5.6 in)
1980117.9 mm (4.6 in)
1981166.9 mm (6.6 in)
1982108.0 mm (4.3 in)
1983132.6 mm (5.2 in)
198432.3 mm (1.3 in)
19851.2 mm (0.05 in)
198619.3 mm (0.8 in)
1987120.9 mm (4.8 in)
1988102.0 mm (4.0 in)
1989174.3 mm (6.9 in)
1990127.6 mm (5.0 in)
199183.5 mm (3.3 in)
199290.4 mm (3.6 in)
1993148.8 mm (5.9 in)
1994103.4 mm (4.1 in)
199575.3 mm (3.0 in)
2002139.5 mm (5.5 in)
2003129.4 mm (5.1 in)
2004195.6 mm (7.7 in)
2005144.9 mm (5.7 in)
2006132.9 mm (5.2 in)
2007122.1 mm (4.8 in)
2008159.2 mm (6.3 in)
2009133.6 mm (5.3 in)
2010165.9 mm (6.5 in)
2011128.0 mm (5.0 in)
201297.6 mm (3.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Tlacotepec by year The longest dry spell of the year at Tlacotepec, 1948 to 2012. The record is 365 days in 1961, marked on the chart; the median year is 101 days. 0100200300400196019802000Record: 365 days in 1961
The longest dry spell of the year at Tlacotepec, 1948 to 2012. The record is 365 days in 1961, marked on the chart; the median year is 101 days.
Longest dry spell (CDD) at Tlacotepec by year
YearLongest dry spell (CDD)
194831 days
1949143 days
195071 days
195112 days
195359 days
1954124 days
1955121 days
1957151 days
1958132 days
1959149 days
1960120 days
1961365 days
1962365 days
1963150 days
1964183 days
1965165 days
1966158 days
1967144 days
196831 days
196969 days
1970132 days
197178 days
1972106 days
197394 days
197463 days
1975107 days
1976101 days
1977131 days
197843 days
197963 days
198057 days
198167 days
198272 days
198370 days
1984124 days
1985365 days
1986286 days
1987152 days
198895 days
198920 days
199027 days
199155 days
199296 days
1993101 days
1994141 days
199525 days
200249 days
2003133 days
200459 days
200553 days
200689 days
200762 days
2008107 days
200969 days
2010112 days
2011105 days
201237 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

43 years, 1949 to 2012

A day with at least 49.4 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 147.4 mm (5.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Tlacotepec: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years49.4 mm (1.9 in)
5 years81.1 mm (3.2 in)
10 years99.7 mm (3.9 in)
25 years120.7 mm (4.8 in)
50 years134.7 mm (5.3 in)Longer than the 43 years of record
100 years147.4 mm (5.8 in)Longer than the 43 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, 43 years of values from 1949 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: 164.3 mm (6.5 in) in 2004; 116.3 mm (4.6 in) in 2010; 113.8 mm (4.5 in) in 1970.

Download the Data

  • Data for Tlacotepec standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Tlacotepec 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).