Built 2026-10-16 (16 October 2026)

Tlacolula de Matamoros Weather Records (MXN00020165)

Record envelope, standing records and threshold days for Tlacolula de Matamoros (MXN00020165), Mexico, with 39 years of record.

Key Facts for Tlacolula de Matamoros

  • Tlacolula de Matamoros (MXN00020165) is a weather station in Mexico at 16.95 latitude and -96.47 longitude, 1,618 m (5,308 ft) above sea level.
  • The station reports from 1950 to 1988, 39 years of record.
  • 1,464 records set at Tlacolula de Matamoros still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Tlacolula de Matamoros tied a daily record high maximum temperature of 33.9 C (93.0 F) on 15 March 1988.

About the Station

  • Location: Mexico, 16.95 latitude, -96.47 longitude.
  • Elevation: 1,618 m (5,308 ft).
  • Period of record: 1950 to 1988, 39 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 Tlacolula de Matamoros, with 2026 drawn through them The band shows the record high and record low for each calendar day at Tlacolula de Matamoros. 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 Tlacolula de Matamoros. 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 Tlacolula de Matamoros, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan32.8 C (91.0 F)-8.9 C (16.0 F)n/an/a
Feb34.4 C (93.9 F)-7.2 C (19.0 F)n/an/a
Mar38.9 C (102.0 F)-4.4 C (24.1 F)n/an/a
Apr40.0 C (104.0 F)-4.4 C (24.1 F)n/an/a
May40.6 C (105.1 F)1.1 C (34.0 F)n/an/a
Jun38.9 C (102.0 F)3.9 C (39.0 F)n/an/a
Jul32.8 C (91.0 F)0.6 C (33.1 F)n/an/a
Aug35.0 C (95.0 F)3.9 C (39.0 F)n/an/a
Sep32.8 C (91.0 F)3.9 C (39.0 F)n/an/a
Oct35.0 C (95.0 F)-3.3 C (26.1 F)n/an/a
Nov32.8 C (91.0 F)-7.2 C (19.0 F)n/an/a
Dec31.1 C (88.0 F)-6.7 C (19.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Tlacolula de Matamoros by the year they were set 1,464 records at Tlacolula de Matamoros still stand. 1950 holds the most, with 110. 0501001501950: 1101951: 621952: 701953: 551954: 721955: 691956: 481957: 341958: 151959: 171960: 311961: 261962: 161963: 401964: 221965: 211966: 181967: 181968: 171969: 211970: 281971: 191972: 231973: 241974: 181975: 151976: 171977: 1011978: 301981: 661982: 891983: 1071984: 451985: 311986: 281987: 311988: 101950195419581962196619701974197819841988
1,464 records at Tlacolula de Matamoros still stand. 1950 holds the most, with 110.
Standing records at Tlacolula de Matamoros by the year they were set
Year setStanding records
1950110
195162
195270
195355
195472
195569
195648
195734
195815
195917
196031
196126
196216
196340
196422
196521
196618
196718
196817
196921
197028
197119
197223
197324
197418
197515
197617
1977101
197830
198166
198289
1983107
198445
198531
198628
198731
198810

All-Time Record Progression

1 new records
When Tlacolula de Matamoros set new all-time records 1 all-time records were set at Tlacolula de Matamoros between 18 May 1983 and 18 May 1983. Each dot is a new record. Record high maximum temperature18 May 1983: Record high maximum temperature 40.6 C (105.1 F)
1 all-time records were set at Tlacolula de Matamoros between 18 May 1983 and 18 May 1983. Each dot is a new record.
When Tlacolula de Matamoros set new all-time records
DateKindDetail
1983-05-18Record high maximum temperatureRecord high maximum temperature 40.6 C (105.1 F)

Wettest Day of Each Month

Aug: 80.8 mm (3.2 in)
Record daily precipitation for each month at Tlacolula de Matamoros The wettest day on record for each calendar month at Tlacolula de Matamoros. The most was 80.8 mm (3.2 in) on 31 August 1962. 0255075100 Jan: 59.9 mm (2.4 in), 19 January 1958 Jan Feb: 34.8 mm (1.4 in), 25 February 1983 Feb Mar: 21.8 mm (0.9 in), 12 March 1981 Mar Apr: 56.9 mm (2.2 in), 26 April 1972 Apr May: 53.8 mm (2.1 in), 20 May 1982 May Jun: 65.8 mm (2.6 in), 1 June 1957 Jun Jul: 62.0 mm (2.4 in), 13 July 1975 Jul Aug: 80.8 mm (3.2 in), 31 August 1962 Aug Sep: 67.8 mm (2.7 in), 1 September 1981 Sep Oct: 43.9 mm (1.7 in), 1 October 1950 Oct Nov: 35.3 mm (1.4 in), 3 November 1967 Nov Dec: 13.0 mm (0.5 in), 12 December 1958 Dec
The wettest day on record for each calendar month at Tlacolula de Matamoros. The most was 80.8 mm (3.2 in) on 31 August 1962.
Record daily precipitation for each month at Tlacolula de Matamoros
MonthRecord daily precipitation (mm)Date
Jan59.9 mm (2.4 in)19 January 1958
Feb34.8 mm (1.4 in)25 February 1983
Mar21.8 mm (0.9 in)12 March 1981
Apr56.9 mm (2.2 in)26 April 1972
May53.8 mm (2.1 in)20 May 1982
Jun65.8 mm (2.6 in)1 June 1957
Jul62.0 mm (2.4 in)13 July 1975
Aug80.8 mm (3.2 in)31 August 1962
Sep67.8 mm (2.7 in)1 September 1981
Oct43.9 mm (1.7 in)1 October 1950
Nov35.3 mm (1.4 in)3 November 1967
Dec13.0 mm (0.5 in)12 December 1958

Period of Record Coverage

1950 to 1988
Days with data per year at Tlacolula de Matamoros 37 years of record at Tlacolula de Matamoros, 1950 to 1988. 3 years have data for under 90 percent of days and are left out of rankings: 1978, 1987, 1988. 1950: 364 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 364 of 365 days1954: 364 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 364 of 365 days1958: 364 of 365 days1959: 365 of 365 days1960: 365 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 363 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 361 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 364 of 366 days1973: 363 of 365 days1974: 334 of 365 days1975: 364 of 365 days1976: 366 of 366 days1977: 362 of 365 days1978: 150 of 365 days1981: 357 of 365 days1982: 343 of 365 days1983: 353 of 365 days1984: 340 of 366 days1985: 338 of 365 days1986: 339 of 365 days1987: 151 of 365 days1988: 48 of 366 days1950195519601965197019751985
37 years of record at Tlacolula de Matamoros, 1950 to 1988. 3 years have data for under 90 percent of days and are left out of rankings: 1978, 1987, 1988.
Days with data per year at Tlacolula de Matamoros
YearDays with dataShare of yearComplete
1950364100%Yes
1951365100%Yes
1952366100%Yes
1953364100%Yes
1954364100%Yes
1955365100%Yes
1956366100%Yes
1957364100%Yes
1958364100%Yes
1959365100%Yes
1960365100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
196636399%Yes
1967365100%Yes
1968366100%Yes
196936199%Yes
1970365100%Yes
1971365100%Yes
197236499%Yes
197336399%Yes
197433492%Yes
1975364100%Yes
1976366100%Yes
197736299%Yes
197815041%No
198135798%Yes
198234394%Yes
198335397%Yes
198434093%Yes
198533893%Yes
198633993%Yes
198715141%No
19884813%No

Latest Records

20
Latest records at Tlacolula de Matamoros
DateStationRecordValueBeat old record byOld record stoodSignificance
15 March 1988Tlacolula de Matamoros, MXdaily high max (Tie)33.9 C (93.0 F)tie11 years1 of 100 (Routine)
14 March 1988Tlacolula de Matamoros, MXdaily high min (Tie)12.8 C (55.0 F)tie7 years1 of 100 (Routine)
9 March 1988Tlacolula de Matamoros, MXdaily high min12.8 C (55.0 F)2.2 C (4.0 F)7 years12 of 100 (Routine)
8 March 1988Tlacolula de Matamoros, MXdaily high min12.8 C (55.0 F)1.1 C (2.0 F)27 years14 of 100 (Routine)
7 March 1988Tlacolula de Matamoros, MXdaily high min12.8 C (55.0 F)1.1 C (2.0 F)20 years12 of 100 (Routine)
25 February 1988Tlacolula de Matamoros, MXmonthly high min15.0 C (59.0 F)1.1 C (2.0 F)0 years15 of 100 (Routine)
24 February 1988Tlacolula de Matamoros, MXmonthly high min (Tie)13.9 C (57.0 F)tie0 years3 of 100 (Routine)
23 February 1988Tlacolula de Matamoros, MXdaily high min (Tie)11.7 C (53.1 F)tie4 years1 of 100 (Routine)
22 February 1988Tlacolula de Matamoros, MXmonthly high min13.9 C (57.0 F)0.6 C (1.1 F)11 years17 of 100 (Routine)
18 February 1988Tlacolula de Matamoros, MXdaily high min12.8 C (55.0 F)1.1 C (2.0 F)9 years7 of 100 (Routine)
16 February 1988Tlacolula de Matamoros, MXdaily high min (Tie)11.7 C (53.1 F)tie4 years1 of 100 (Routine)
2 February 1988Tlacolula de Matamoros, MXdaily high min10.6 C (51.1 F)2.8 C (5.0 F)13 years14 of 100 (Routine)
21 January 1988Tlacolula de Matamoros, MXdaily high min10.0 C (50.0 F)1.1 C (2.0 F)28 years14 of 100 (Routine)
21 January 1988Tlacolula de Matamoros, MXdaily high max (Tie)30.0 C (86.0 F)tie5 years1 of 100 (Routine)
20 January 1988Tlacolula de Matamoros, MXdaily high min (Tie)10.0 C (50.0 F)tie9 years1 of 100 (Routine)
18 January 1988Tlacolula de Matamoros, MXdaily high min10.0 C (50.0 F)1.1 C (2.0 F)4 years7 of 100 (Routine)
11 January 1988Tlacolula de Matamoros, MXdaily high max (Tie)28.9 C (84.0 F)tie24 years2 of 100 (Routine)
4 January 1988Tlacolula de Matamoros, MXdaily high min (Tie)7.8 C (46.0 F)tie24 years2 of 100 (Routine)
24 November 1987Tlacolula de Matamoros, MXdaily high max (Tie)30.0 C (86.0 F)tie20 years2 of 100 (Routine)
19 November 1987Tlacolula de Matamoros, MXdaily high min (Tie)10.0 C (50.0 F)tie18 years2 of 100 (Routine)

Climate Trend

33 complete years, 1950 to 1986
Annual mean temperature at Tlacolula de Matamoros as warming stripes, 1950 to 1986 One stripe for each of 33 complete years at Tlacolula de Matamoros, 1950 to 1986. Blue stripes are years cooler than the station's own mean of 17.4 C (63.2 F); red stripes are warmer. The coolest year was 1954, at 14.6 C (58.2 F), and the warmest was 1982, at 20.2 C (68.4 F). The strongest colour marks a difference of 2.9 C (5.2 F). 1950: 16.0 C, -1.4 C from the station mean1951: 14.7 C, -2.6 C from the station mean1952: 14.9 C, -2.5 C from the station mean1953: 15.6 C, -1.8 C from the station mean1954: 14.6 C, -2.8 C from the station mean1955: 15.3 C, -2.0 C from the station mean1956: 15.9 C, -1.5 C from the station mean1957: 16.7 C, -0.6 C from the station mean1958: 17.1 C, -0.3 C from the station mean1959: 16.8 C, -0.6 C from the station mean1960: 17.1 C, -0.3 C from the station mean1961: 17.4 C, +0.1 C from the station mean1962: 16.8 C, -0.5 C from the station mean1963: 16.4 C, -0.9 C from the station mean1964: 17.8 C, +0.4 C from the station mean1965: 17.5 C, +0.1 C from the station mean1966: 17.0 C, -0.3 C from the station mean1967: 16.9 C, -0.5 C from the station mean1968: 17.0 C, -0.4 C from the station mean1969: 17.9 C, +0.6 C from the station mean1970: 17.3 C, 0.0 C from the station mean1971: 17.2 C, -0.1 C from the station mean1972: 17.9 C, +0.6 C from the station mean1973: 17.9 C, +0.5 C from the station mean1975: 17.4 C, +0.1 C from the station mean1976: 17.5 C, +0.1 C from the station mean1977: 19.7 C, +2.4 C from the station mean1981: 19.8 C, +2.5 C from the station mean1982: 20.2 C, +2.8 C from the station mean1983: 20.1 C, +2.8 C from the station mean1984: 19.3 C, +1.9 C from the station mean1985: 19.4 C, +2.1 C from the station mean1986: 19.5 C, +2.1 C from the station mean19501955196019651970197519801985
One stripe for each of 33 complete years at Tlacolula de Matamoros, 1950 to 1986. Blue stripes are years cooler than the station's own mean of 17.4 C (63.2 F); red stripes are warmer. The coolest year was 1954, at 14.6 C (58.2 F), and the warmest was 1982, at 20.2 C (68.4 F). The strongest colour marks a difference of 2.9 C (5.2 F).
Annual mean temperature at Tlacolula de Matamoros as warming stripes, 1950 to 1986
YearAnnual mean temperatureDifference from the station mean
195016.0 C-1.36 C
195114.7 C-2.64 C
195214.9 C-2.47 C
195315.6 C-1.81 C
195414.6 C-2.78 C
195515.3 C-2.02 C
195615.9 C-1.46 C
195716.7 C-0.64 C
195817.1 C-0.27 C
195916.8 C-0.59 C
196017.1 C-0.26 C
196117.4 C+0.06 C
196216.8 C-0.55 C
196316.4 C-0.94 C
196417.8 C+0.41 C
196517.5 C+0.12 C
196617.0 C-0.32 C
196716.9 C-0.50 C
196817.0 C-0.36 C
196917.9 C+0.55 C
197017.3 C-0.05 C
197117.2 C-0.12 C
197217.9 C+0.55 C
197317.9 C+0.52 C
197517.4 C+0.08 C
197617.5 C+0.13 C
197719.7 C+2.36 C
198119.8 C+2.45 C
198220.2 C+2.84 C
198320.1 C+2.76 C
198419.3 C+1.94 C
198519.4 C+2.08 C
198619.5 C+2.14 C

The annual mean temperature here has risen by 1.3 C (1.1 to 1.5) per decade over 1950 to 1986. In Fahrenheit: 2.3 F (1.9 to 2.7) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Tlacolula de Matamoros
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature1.3 C (1.1 to 1.5) per decade2.3 F (1.9 to 2.7) per decade1950 to 198633Rise
Mean daily maximum1.1 C (0.9 to 1.3) per decade2.0 F (1.6 to 2.4) per decade1950 to 198633Rise
Mean daily minimum1.5 C (1.3 to 1.7) per decade2.7 F (2.3 to 3.1) per decade1950 to 198633Rise

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

1950 to 1988
Yearly extremes at Tlacolula de Matamoros: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.6 C (105.1 F)198334.4 C (93.9 F)37
Coldest night (TNn)-8.9 C (16.0 F)1953-3.9 C (25.0 F)37
Wettest day (Rx1day)80.8 mm (3.2 in)196241.9 mm (1.6 in)38
Wettest five days (Rx5day)133.4 mm (5.3 in)195982.9 mm (3.3 in)38
Longest dry spell (CDD)118 days195173 days38

Hottest day (TXx)

Hottest day (TXx) at Tlacolula de Matamoros by year The hottest day of the year at Tlacolula de Matamoros, 1950 to 1988. The record is 40.6 C (105.1 F) in 1983, marked on the chart; the median year is 34.4 C (93.9 F). 303540451950196019701980Record: 40.6 C (105.1 F) in 1983
The hottest day of the year at Tlacolula de Matamoros, 1950 to 1988. The record is 40.6 C (105.1 F) in 1983, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Tlacolula de Matamoros by year
YearHottest day (TXx)
195034.4 C (93.9 F)
195130.0 C (86.0 F)
195231.1 C (88.0 F)
195335.0 C (95.0 F)
195431.1 C (88.0 F)
195532.2 C (90.0 F)
195633.3 C (91.9 F)
195732.8 C (91.0 F)
195835.0 C (95.0 F)
195931.7 C (89.1 F)
196031.7 C (89.1 F)
196133.9 C (93.0 F)
196232.8 C (91.0 F)
196332.2 C (90.0 F)
196435.0 C (95.0 F)
196535.6 C (96.1 F)
196632.8 C (91.0 F)
196732.2 C (90.0 F)
196832.2 C (90.0 F)
196935.0 C (95.0 F)
197035.0 C (95.0 F)
197134.4 C (93.9 F)
197238.9 C (102.0 F)
197335.0 C (95.0 F)
197433.9 C (93.0 F)
197533.9 C (93.0 F)
197632.8 C (91.0 F)
197736.7 C (98.1 F)
197836.7 C (98.1 F)
1980n/a
198138.9 C (102.0 F)
198235.6 C (96.1 F)
198340.6 C (105.1 F)
198437.8 C (100.0 F)
198536.7 C (98.1 F)
198640.0 C (104.0 F)
198735.0 C (95.0 F)
198835.0 C (95.0 F)

Coldest night (TNn)

Coldest night (TNn) at Tlacolula de Matamoros by year The coldest night of the year at Tlacolula de Matamoros, 1950 to 1988. The record is -8.9 C (16.0 F) in 1953, marked on the chart; the median year is -3.9 C (25.0 F). -10-5051950196019701980Record: -8.9 C (16.0 F) in 1953
The coldest night of the year at Tlacolula de Matamoros, 1950 to 1988. The record is -8.9 C (16.0 F) in 1953, marked on the chart; the median year is -3.9 C (25.0 F).
Coldest night (TNn) at Tlacolula de Matamoros by year
YearColdest night (TNn)
1950-7.2 C (19.0 F)
1951-7.2 C (19.0 F)
1952-4.4 C (24.1 F)
1953-8.9 C (16.0 F)
1954-6.7 C (19.9 F)
1955-5.0 C (23.0 F)
1956-8.9 C (16.0 F)
1957-6.1 C (21.0 F)
1958-3.3 C (26.1 F)
1959-3.9 C (25.0 F)
1960-7.2 C (19.0 F)
1961-5.0 C (23.0 F)
1962-3.3 C (26.1 F)
1963-5.0 C (23.0 F)
19640.0 C (32.0 F)
1965-4.4 C (24.1 F)
1966-4.4 C (24.1 F)
1967-5.0 C (23.0 F)
1968-5.0 C (23.0 F)
1969-2.2 C (28.0 F)
1970-3.3 C (26.1 F)
1971-2.2 C (28.0 F)
1972-2.8 C (27.0 F)
1973-5.0 C (23.0 F)
1974-4.4 C (24.1 F)
1975-1.1 C (30.0 F)
1976-5.0 C (23.0 F)
19770.6 C (33.1 F)
19782.8 C (37.0 F)
1980n/a
19810.6 C (33.1 F)
19823.9 C (39.0 F)
19831.7 C (35.1 F)
19841.7 C (35.1 F)
19852.8 C (37.0 F)
19860.6 C (33.1 F)
19870.6 C (33.1 F)
19883.9 C (39.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Tlacolula de Matamoros by year The wettest day of the year at Tlacolula de Matamoros, 1950 to 1988. The record is 80.8 mm (3.2 in) in 1962, marked on the chart; the median year is 41.9 mm (1.6 in). 02550751001950196019701980Record: 80.8 mm (3.2 in) in 1962
The wettest day of the year at Tlacolula de Matamoros, 1950 to 1988. The record is 80.8 mm (3.2 in) in 1962, marked on the chart; the median year is 41.9 mm (1.6 in).
Wettest day (Rx1day) at Tlacolula de Matamoros by year
YearWettest day (Rx1day)
195043.9 mm (1.7 in)
195137.8 mm (1.5 in)
195239.9 mm (1.6 in)
195334.8 mm (1.4 in)
195463.0 mm (2.5 in)
195535.8 mm (1.4 in)
195636.3 mm (1.4 in)
195765.8 mm (2.6 in)
195863.0 mm (2.5 in)
195951.8 mm (2.0 in)
196047.8 mm (1.9 in)
196135.8 mm (1.4 in)
196280.8 mm (3.2 in)
196347.8 mm (1.9 in)
196446.5 mm (1.8 in)
196533.8 mm (1.3 in)
196651.8 mm (2.0 in)
196741.9 mm (1.6 in)
196854.9 mm (2.2 in)
196939.9 mm (1.6 in)
197039.9 mm (1.6 in)
197140.9 mm (1.6 in)
197256.9 mm (2.2 in)
197347.0 mm (1.9 in)
197443.9 mm (1.7 in)
197562.0 mm (2.4 in)
197637.3 mm (1.5 in)
197734.3 mm (1.4 in)
197821.8 mm (0.9 in)
198012.4 mm (0.5 in)
198167.8 mm (2.7 in)
198253.8 mm (2.1 in)
198334.8 mm (1.4 in)
198437.8 mm (1.5 in)
198541.9 mm (1.6 in)
198637.8 mm (1.5 in)
198747.8 mm (1.9 in)
19880.0 mm (0.00 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Tlacolula de Matamoros by year The wettest five days of the year at Tlacolula de Matamoros, 1950 to 1988. The record is 133.4 mm (5.3 in) in 1959, marked on the chart; the median year is 82.9 mm (3.3 in). 0501001501950196019701980Record: 133.4 mm (5.3 in) in 1959
The wettest five days of the year at Tlacolula de Matamoros, 1950 to 1988. The record is 133.4 mm (5.3 in) in 1959, marked on the chart; the median year is 82.9 mm (3.3 in).
Wettest five days (Rx5day) at Tlacolula de Matamoros by year
YearWettest five days (Rx5day)
195077.0 mm (3.0 in)
195186.9 mm (3.4 in)
195294.6 mm (3.7 in)
195386.8 mm (3.4 in)
195473.9 mm (2.9 in)
195582.5 mm (3.2 in)
195665.9 mm (2.6 in)
195781.0 mm (3.2 in)
1958102.9 mm (4.1 in)
1959133.4 mm (5.3 in)
196088.4 mm (3.5 in)
196163.5 mm (2.5 in)
1962132.5 mm (5.2 in)
1963116.3 mm (4.6 in)
196471.2 mm (2.8 in)
196576.7 mm (3.0 in)
196699.3 mm (3.9 in)
196784.6 mm (3.3 in)
196875.4 mm (3.0 in)
1969118.4 mm (4.7 in)
197093.6 mm (3.7 in)
197168.6 mm (2.7 in)
1972125.3 mm (4.9 in)
197366.3 mm (2.6 in)
1974100.7 mm (4.0 in)
1975123.9 mm (4.9 in)
197652.6 mm (2.1 in)
197756.2 mm (2.2 in)
197826.6 mm (1.0 in)
198012.4 mm (0.5 in)
1981101.4 mm (4.0 in)
198294.5 mm (3.7 in)
198389.4 mm (3.5 in)
198471.6 mm (2.8 in)
198545.7 mm (1.8 in)
198669.4 mm (2.7 in)
198783.3 mm (3.3 in)
19880.0 mm (0.00 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Tlacolula de Matamoros by year The longest dry spell of the year at Tlacolula de Matamoros, 1950 to 1988. The record is 118 days in 1951, marked on the chart; the median year is 73 days. 0501001501950196019701980Record: 118 days in 1951
The longest dry spell of the year at Tlacolula de Matamoros, 1950 to 1988. The record is 118 days in 1951, marked on the chart; the median year is 73 days.
Longest dry spell (CDD) at Tlacolula de Matamoros by year
YearLongest dry spell (CDD)
195061 days
1951118 days
195286 days
1953113 days
1954103 days
195574 days
195691 days
195776 days
195849 days
1959107 days
1960107 days
196170 days
196261 days
196392 days
1964103 days
196571 days
196674 days
196758 days
196860 days
196960 days
197074 days
197193 days
197263 days
1973104 days
197470 days
197580 days
1976107 days
1977111 days
197882 days
198022 days
198170 days
198260 days
198365 days
198459 days
198530 days
198658 days
198729 days
19886 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.

Frost Dates and Growing Season

22 years with a frost

Across 22 years with a frost, the median last spring frost at Tlacolula de Matamoros falls on 22 February and the median first autumn frost on 17 November, which leaves a median of 274 days between them.

Frost dates and growing season at Tlacolula de Matamoros
MeasureMedian, all yearsEarliest periodRecent period (1951 to 1975)Recent against earliestFitted trend
Last spring frost22 Februaryn/a22 Februaryn/an/a
First autumn frost17 Novembern/a17 Novembern/an/a
Growing days274 daysn/a274 daysn/an/a

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

33 years, 1951 to 1986

A day with at least 43.8 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 94.0 mm (3.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Tlacolula de Matamoros: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years43.8 mm (1.7 in)
5 years54.3 mm (2.1 in)
10 years62.3 mm (2.5 in)
25 years73.8 mm (2.9 in)
50 years83.4 mm (3.3 in)Longer than the 33 years of record
100 years94.0 mm (3.7 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 1951 to 1986.

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: 80.8 mm (3.2 in) in 1962; 67.8 mm (2.7 in) in 1981; 65.8 mm (2.6 in) in 1957.

Download the Data

  • Data for Tlacolula de Matamoros standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Tlacolula de Matamoros 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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