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San Agustin Metziquititlan Weather Records (MXN00013015)

Record envelope, standing records and threshold days for San Agustin Metziquititlan (MXN00013015), Mexico, with 70 years of record.

Key Facts for San Agustin Metziquititlan

  • San Agustin Metziquititlan (MXN00013015) is a weather station in Mexico at 20.53 latitude and -98.63 longitude, 1,421 m (4,662 ft) above sea level.
  • The station reports from 1942 to 2011, 70 years of record.
  • 1,464 records set at San Agustin Metziquititlan still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • San Agustin Metziquititlan set a daily record precipitation of 1.8 mm (0.07 in) on 14 December 2011.

About the Station

  • Location: Mexico, 20.53 latitude, -98.63 longitude.
  • Elevation: 1,421 m (4,662 ft).
  • Period of record: 1942 to 2011, 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 San Agustin Metziquititlan, with 2026 drawn through them The band shows the record high and record low for each calendar day at San Agustin Metziquititlan. 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 San Agustin Metziquititlan. 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 San Agustin Metziquititlan, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan32.8 C (91.0 F)-5.0 C (23.0 F)n/an/a
Feb33.9 C (93.0 F)-5.0 C (23.0 F)n/an/a
Mar38.9 C (102.0 F)-2.2 C (28.0 F)n/an/a
Apr40.0 C (104.0 F)-1.1 C (30.0 F)n/an/a
May40.6 C (105.1 F)3.9 C (39.0 F)n/an/a
Jun38.9 C (102.0 F)3.9 C (39.0 F)n/an/a
Jul36.7 C (98.1 F)3.9 C (39.0 F)n/an/a
Aug37.8 C (100.0 F)5.0 C (41.0 F)n/an/a
Sep35.6 C (96.1 F)2.8 C (37.0 F)n/an/a
Oct33.9 C (93.0 F)-1.1 C (30.0 F)n/an/a
Nov33.9 C (93.0 F)-5.0 C (23.0 F)n/an/a
Dec31.7 C (89.1 F)-5.0 C (23.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at San Agustin Metziquititlan by the year they were set 1,464 records at San Agustin Metziquititlan still stand. 1973 holds the most, with 91. 02550751001942: 141943: 461944: 261945: 281946: 271947: 271948: 221949: 341950: 341951: 411952: 451953: 391954: 281955: 521956: 381957: 311958: 251959: 271960: 411961: 401962: 271963: 161964: 331965: 351966: 431967: 871968: 451970: 761972: 511973: 911974: 461975: 421976: 431977: 102007: 42008: 102009: 332010: 632011: 441942194619501954195819621966197219762009
1,464 records at San Agustin Metziquititlan still stand. 1973 holds the most, with 91.
Standing records at San Agustin Metziquititlan by the year they were set
Year setStanding records
194214
194346
194426
194528
194627
194727
194822
194934
195034
195141
195245
195339
195428
195552
195638
195731
195825
195927
196041
196140
196227
196316
196433
196535
196643
196787
196845
197076
197251
197391
197446
197542
197643
197710
20074
200810
200933
201063
201144

Wettest Day of Each Month

Oct: 119.9 mm (4.7 in)
Record daily precipitation for each month at San Agustin Metziquititlan The wettest day on record for each calendar month at San Agustin Metziquititlan. The most was 119.9 mm (4.7 in) on 7 October 1954. 050100150 Jan: 30.0 mm (1.2 in), 10 January 1967 Jan Feb: 25.9 mm (1.0 in), 19 February 1946 Feb Mar: 19.8 mm (0.8 in), 23 March 1967 Mar Apr: 42.9 mm (1.7 in), 8 April 1968 Apr May: 34.8 mm (1.4 in), 28 May 1946 May Jun: 63.5 mm (2.5 in), 26 June 1973 Jun Jul: 86.4 mm (3.4 in), 31 July 1972 Jul Aug: 87.1 mm (3.4 in), 15 August 1947 Aug Sep: 91.9 mm (3.6 in), 20 September 1974 Sep Oct: 119.9 mm (4.7 in), 7 October 1954 Oct Nov: 40.9 mm (1.6 in), 4 November 1952 Nov Dec: 30.0 mm (1.2 in), 1 December 1944 Dec
The wettest day on record for each calendar month at San Agustin Metziquititlan. The most was 119.9 mm (4.7 in) on 7 October 1954.
Record daily precipitation for each month at San Agustin Metziquititlan
MonthRecord daily precipitation (mm)Date
Jan30.0 mm (1.2 in)10 January 1967
Feb25.9 mm (1.0 in)19 February 1946
Mar19.8 mm (0.8 in)23 March 1967
Apr42.9 mm (1.7 in)8 April 1968
May34.8 mm (1.4 in)28 May 1946
Jun63.5 mm (2.5 in)26 June 1973
Jul86.4 mm (3.4 in)31 July 1972
Aug87.1 mm (3.4 in)15 August 1947
Sep91.9 mm (3.6 in)20 September 1974
Oct119.9 mm (4.7 in)7 October 1954
Nov40.9 mm (1.6 in)4 November 1952
Dec30.0 mm (1.2 in)1 December 1944

Period of Record Coverage

1942 to 2011
Days with data per year at San Agustin Metziquititlan 39 years of record at San Agustin Metziquititlan, 1942 to 2011. 4 years have data for under 90 percent of days and are left out of rankings: 1942, 1966, 1977, 2007. 1942: 104 of 365 days1943: 334 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 364 of 365 days1947: 362 of 365 days1948: 365 of 366 days1949: 365 of 365 days1950: 365 of 365 days1951: 364 of 365 days1952: 365 of 366 days1953: 365 of 365 days1954: 364 of 365 days1955: 364 of 365 days1956: 365 of 366 days1957: 364 of 365 days1958: 364 of 365 days1959: 364 of 365 days1960: 365 of 366 days1961: 353 of 365 days1962: 353 of 365 days1963: 353 of 365 days1964: 354 of 366 days1965: 352 of 365 days1966: 148 of 365 days1967: 347 of 365 days1968: 354 of 366 days1970: 363 of 365 days1972: 364 of 366 days1973: 363 of 365 days1974: 362 of 365 days1975: 363 of 365 days1976: 366 of 366 days1977: 31 of 365 days2007: 214 of 365 days2008: 333 of 366 days2009: 363 of 365 days2010: 349 of 365 days2011: 363 of 365 days19451950195519601965197019752010
39 years of record at San Agustin Metziquititlan, 1942 to 2011. 4 years have data for under 90 percent of days and are left out of rankings: 1942, 1966, 1977, 2007.
Days with data per year at San Agustin Metziquititlan
YearDays with dataShare of yearComplete
194210428%No
194333492%Yes
1944366100%Yes
1945365100%Yes
1946364100%Yes
194736299%Yes
1948365100%Yes
1949365100%Yes
1950365100%Yes
1951364100%Yes
1952365100%Yes
1953365100%Yes
1954364100%Yes
1955364100%Yes
1956365100%Yes
1957364100%Yes
1958364100%Yes
1959364100%Yes
1960365100%Yes
196135397%Yes
196235397%Yes
196335397%Yes
196435497%Yes
196535296%Yes
196614841%No
196734795%Yes
196835497%Yes
197036399%Yes
197236499%Yes
197336399%Yes
197436299%Yes
197536399%Yes
1976366100%Yes
1977318%No
200721459%No
200833391%Yes
200936399%Yes
201034996%Yes
201136399%Yes

Latest Records

20
Latest records at San Agustin Metziquititlan
DateStationRecordValueBeat old record byOld record stoodSignificance
14 December 2011San Agustin Metziquititlan, MXdaily rain1.8 mm (0.07 in)1.8 mm (0.07 in)68 years20 of 100 (Routine)
5 December 2011San Agustin Metziquititlan, MXdaily high max (Tie)27.8 C (82.0 F)tie62 years6 of 100 (Routine)
25 November 2011San Agustin Metziquititlan, MXdaily low max12.8 C (55.0 F)1.1 C (2.0 F)54 years25 of 100 (Routine)
18 November 2011San Agustin Metziquititlan, MXdaily rain18.8 mm (0.7 in)17.8 mm (0.7 in)64 years20 of 100 (Routine)
18 November 2011San Agustin Metziquititlan, MXdaily high max (Tie)28.9 C (84.0 F)tie53 years5 of 100 (Routine)
8 November 2011San Agustin Metziquititlan, MXdaily rain20.8 mm (0.8 in)8.4 mm (0.33 in)57 years20 of 100 (Routine)
17 October 2011San Agustin Metziquititlan, MXdaily high max (Tie)30.6 C (87.1 F)tie45 years5 of 100 (Routine)
30 September 2011San Agustin Metziquititlan, MXdaily high max31.7 C (89.1 F)1.7 C (3.1 F)0 years11 of 100 (Routine)
18 September 2011San Agustin Metziquititlan, MXdaily low min (Tie)8.9 C (48.0 F)tie65 years6 of 100 (Routine)
13 September 2011San Agustin Metziquititlan, MXdaily low min (Tie)8.9 C (48.0 F)tie68 years6 of 100 (Routine)
12 September 2011San Agustin Metziquititlan, MXdaily low min8.9 C (48.0 F)1.1 C (2.0 F)4 years12 of 100 (Routine)
11 September 2011San Agustin Metziquititlan, MXdaily low min5.6 C (42.1 F)3.3 C (5.9 F)60 years37 of 100 (Notable)
10 September 2011San Agustin Metziquititlan, MXdaily low min5.6 C (42.1 F)1.1 C (2.0 F)0 years11 of 100 (Routine)
8 September 2011San Agustin Metziquititlan, MXdaily low min (Tie)6.7 C (44.1 F)tie36 years4 of 100 (Routine)
7 September 2011San Agustin Metziquititlan, MXdaily high max (Tie)28.9 C (84.0 F)tie52 years5 of 100 (Routine)
7 September 2011San Agustin Metziquititlan, MXdaily low min (Tie)6.7 C (44.1 F)tie36 years4 of 100 (Routine)
5 September 2011San Agustin Metziquititlan, MXdaily low min (Tie)8.9 C (48.0 F)tie49 years5 of 100 (Routine)
3 September 2011San Agustin Metziquititlan, MXdaily high max (Tie)33.9 C (93.0 F)tie1 year1 of 100 (Routine)
2 September 2011San Agustin Metziquititlan, MXdaily low min8.9 C (48.0 F)1.1 C (2.0 F)61 years29 of 100 (Routine)
2 September 2011San Agustin Metziquititlan, MXdaily high max32.8 C (91.0 F)1.1 C (2.0 F)1 year10 of 100 (Routine)

Climate Trend

32 complete years, 1944 to 2011
Annual mean temperature at San Agustin Metziquititlan as warming stripes, 1944 to 2011 One stripe for each of 32 complete years at San Agustin Metziquititlan, 1944 to 2011. Blue stripes are years cooler than the station's own mean of 17.2 C (63.0 F); red stripes are warmer. The coolest year was 1967, at 15.0 C (59.0 F), and the warmest was 1973, at 19.9 C (67.7 F). The strongest colour marks a difference of 2.7 C (4.9 F). 1944: 17.2 C, 0.0 C from the station mean1945: 17.8 C, +0.5 C from the station mean1946: 17.3 C, +0.1 C from the station mean1947: 17.1 C, -0.1 C from the station mean1948: 16.9 C, -0.3 C from the station mean1949: 16.7 C, -0.6 C from the station mean1950: 16.2 C, -1.0 C from the station mean1951: 16.6 C, -0.6 C from the station mean1952: 16.1 C, -1.1 C from the station mean1953: 16.1 C, -1.1 C from the station mean1954: 16.3 C, -0.9 C from the station mean1955: 16.2 C, -1.0 C from the station mean1956: 16.0 C, -1.3 C from the station mean1957: 16.7 C, -0.5 C from the station mean1958: 17.1 C, -0.1 C from the station mean1959: 16.6 C, -0.7 C from the station mean1960: 16.5 C, -0.8 C from the station mean1961: 16.2 C, -1.1 C from the station mean1962: 16.6 C, -0.6 C from the station mean1963: 16.5 C, -0.7 C from the station mean1964: 16.9 C, -0.4 C from the station mean1965: 17.5 C, +0.2 C from the station mean1967: 15.0 C, -2.2 C from the station mean1968: 19.0 C, +1.7 C from the station mean1970: 19.2 C, +1.9 C from the station mean1972: 19.6 C, +2.3 C from the station mean1973: 19.9 C, +2.6 C from the station mean1974: 19.0 C, +1.8 C from the station mean1975: 18.7 C, +1.5 C from the station mean1976: 18.3 C, +1.1 C from the station mean2009: 18.0 C, +0.7 C from the station mean2011: 17.8 C, +0.5 C from the station mean19441950196019701980199020002010
One stripe for each of 32 complete years at San Agustin Metziquititlan, 1944 to 2011. Blue stripes are years cooler than the station's own mean of 17.2 C (63.0 F); red stripes are warmer. The coolest year was 1967, at 15.0 C (59.0 F), and the warmest was 1973, at 19.9 C (67.7 F). The strongest colour marks a difference of 2.7 C (4.9 F).
Annual mean temperature at San Agustin Metziquititlan as warming stripes, 1944 to 2011
YearAnnual mean temperatureDifference from the station mean
194417.2 C-0.01 C
194517.8 C+0.55 C
194617.3 C+0.08 C
194717.1 C-0.14 C
194816.9 C-0.33 C
194916.7 C-0.56 C
195016.2 C-1.03 C
195116.6 C-0.62 C
195216.1 C-1.14 C
195316.1 C-1.09 C
195416.3 C-0.93 C
195516.2 C-1.00 C
195616.0 C-1.25 C
195716.7 C-0.53 C
195817.1 C-0.09 C
195916.6 C-0.66 C
196016.5 C-0.76 C
196116.2 C-1.05 C
196216.6 C-0.59 C
196316.5 C-0.70 C
196416.9 C-0.38 C
196517.5 C+0.22 C
196715.0 C-2.23 C
196819.0 C+1.73 C
197019.2 C+1.94 C
197219.6 C+2.32 C
197319.9 C+2.62 C
197419.0 C+1.80 C
197518.7 C+1.50 C
197618.3 C+1.10 C
200918.0 C+0.73 C
201117.8 C+0.54 C

The annual mean temperature here has risen by 0.3 C (0.1 to 0.6) per decade over 1944 to 2011. In Fahrenheit: 0.6 F (0.2 to 1.1) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at San Agustin Metziquititlan
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.3 C (0.1 to 0.6) per decade0.6 F (0.2 to 1.1) per decade1944 to 201132Rise
Mean daily maximum0.4 C (0.1 to 0.7) per decade0.7 F (0.1 to 1.2) per decade1944 to 201132Rise
Mean daily minimum0.31 C (0.04 to 0.57) per decade0.6 F (0.1 to 1.0) per decade1944 to 201132Rise

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

1942 to 2011
Yearly extremes at San Agustin Metziquititlan: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.6 C (105.1 F)197335.6 C (96.1 F)39
Coldest night (TNn)-5.0 C (23.0 F)1945-3.3 C (26.1 F)39
Wettest day (Rx1day)119.9 mm (4.7 in)195437.3 mm (1.5 in)39
Wettest five days (Rx5day)236.8 mm (9.3 in)195662.6 mm (2.5 in)39
Longest dry spell (CDD)114 days194350 days39

Hottest day (TXx)

Hottest day (TXx) at San Agustin Metziquititlan by year The hottest day of the year at San Agustin Metziquititlan, 1942 to 2011. The record is 40.6 C (105.1 F) in 1973, marked on the chart; the median year is 35.6 C (96.1 F). 3032.53537.54042.5196019802000Record: 40.6 C (105.1 F) in 1973
The hottest day of the year at San Agustin Metziquititlan, 1942 to 2011. The record is 40.6 C (105.1 F) in 1973, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at San Agustin Metziquititlan by year
YearHottest day (TXx)
194232.2 C (90.0 F)
194336.7 C (98.1 F)
194436.7 C (98.1 F)
194535.6 C (96.1 F)
194635.6 C (96.1 F)
194735.6 C (96.1 F)
194835.0 C (95.0 F)
194933.9 C (93.0 F)
195035.0 C (95.0 F)
195135.6 C (96.1 F)
195233.9 C (93.0 F)
195335.0 C (95.0 F)
195435.6 C (96.1 F)
195536.7 C (98.1 F)
195635.6 C (96.1 F)
195735.6 C (96.1 F)
195835.0 C (95.0 F)
195933.9 C (93.0 F)
196035.6 C (96.1 F)
196135.0 C (95.0 F)
196235.0 C (95.0 F)
196332.8 C (91.0 F)
196436.7 C (98.1 F)
196533.9 C (93.0 F)
196632.8 C (91.0 F)
196731.7 C (89.1 F)
196835.6 C (96.1 F)
197040.0 C (104.0 F)
197238.3 C (100.9 F)
197340.6 C (105.1 F)
197437.8 C (100.0 F)
197537.8 C (100.0 F)
197637.2 C (99.0 F)
197732.8 C (91.0 F)
200736.7 C (98.1 F)
200837.8 C (100.0 F)
200935.6 C (96.1 F)
201040.0 C (104.0 F)
201136.7 C (98.1 F)

Coldest night (TNn)

Coldest night (TNn) at San Agustin Metziquititlan by year The coldest night of the year at San Agustin Metziquititlan, 1942 to 2011. The record is -5.0 C (23.0 F) in 1945, marked on the chart; the median year is -3.3 C (26.1 F). -6-4-202196019802000Record: -5.0 C (23.0 F) in 1945
The coldest night of the year at San Agustin Metziquititlan, 1942 to 2011. The record is -5.0 C (23.0 F) in 1945, marked on the chart; the median year is -3.3 C (26.1 F).
Coldest night (TNn) at San Agustin Metziquititlan by year
YearColdest night (TNn)
1942-2.2 C (28.0 F)
1943-2.8 C (27.0 F)
1944-3.3 C (26.1 F)
1945-5.0 C (23.0 F)
19460.0 C (32.0 F)
1947-1.1 C (30.0 F)
1948-4.4 C (24.1 F)
1949-5.0 C (23.0 F)
1950-5.0 C (23.0 F)
1951-5.0 C (23.0 F)
1952-5.0 C (23.0 F)
1953-5.0 C (23.0 F)
1954-5.0 C (23.0 F)
1955-4.4 C (24.1 F)
1956-5.0 C (23.0 F)
1957-3.3 C (26.1 F)
1958-4.4 C (24.1 F)
1959-0.6 C (30.9 F)
1960-5.0 C (23.0 F)
1961-3.3 C (26.1 F)
1962-5.0 C (23.0 F)
1963-4.4 C (24.1 F)
1964-2.2 C (28.0 F)
1965-5.0 C (23.0 F)
1966-3.3 C (26.1 F)
1967-4.4 C (24.1 F)
1968-0.6 C (30.9 F)
1970-1.1 C (30.0 F)
19720.0 C (32.0 F)
1973-2.2 C (28.0 F)
1974-2.2 C (28.0 F)
1975-2.2 C (28.0 F)
1976-3.3 C (26.1 F)
19770.6 C (33.1 F)
20070.0 C (32.0 F)
20080.0 C (32.0 F)
20090.0 C (32.0 F)
20100.6 C (33.1 F)
2011-1.1 C (30.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at San Agustin Metziquititlan by year The wettest day of the year at San Agustin Metziquititlan, 1942 to 2011. The record is 119.9 mm (4.7 in) in 1954, marked on the chart; the median year is 37.3 mm (1.5 in). 050100150196019802000Record: 119.9 mm (4.7 in) in 1954
The wettest day of the year at San Agustin Metziquititlan, 1942 to 2011. The record is 119.9 mm (4.7 in) in 1954, marked on the chart; the median year is 37.3 mm (1.5 in).
Wettest day (Rx1day) at San Agustin Metziquititlan by year
YearWettest day (Rx1day)
194215.0 mm (0.6 in)
194319.8 mm (0.8 in)
194470.4 mm (2.8 in)
194539.4 mm (1.6 in)
194641.9 mm (1.6 in)
194787.1 mm (3.4 in)
194831.8 mm (1.3 in)
194933.0 mm (1.3 in)
195021.8 mm (0.9 in)
195131.0 mm (1.2 in)
195252.3 mm (2.1 in)
195331.8 mm (1.3 in)
1954119.9 mm (4.7 in)
195551.8 mm (2.0 in)
195670.9 mm (2.8 in)
195730.0 mm (1.2 in)
195871.9 mm (2.8 in)
195956.4 mm (2.2 in)
196043.9 mm (1.7 in)
196137.3 mm (1.5 in)
196231.0 mm (1.2 in)
196316.8 mm (0.7 in)
196426.9 mm (1.1 in)
196526.9 mm (1.1 in)
196623.9 mm (0.9 in)
196741.9 mm (1.6 in)
196842.9 mm (1.7 in)
197077.5 mm (3.1 in)
197286.4 mm (3.4 in)
197363.5 mm (2.5 in)
197491.9 mm (3.6 in)
197557.9 mm (2.3 in)
197635.8 mm (1.4 in)
19770.0 mm (0.00 in)
200738.9 mm (1.5 in)
200820.6 mm (0.8 in)
20096.1 mm (0.24 in)
201012.4 mm (0.5 in)
201121.8 mm (0.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at San Agustin Metziquititlan by year The wettest five days of the year at San Agustin Metziquititlan, 1942 to 2011. The record is 236.8 mm (9.3 in) in 1956, marked on the chart; the median year is 62.6 mm (2.5 in). 0100200300196019802000Record: 236.8 mm (9.3 in) in 1956
The wettest five days of the year at San Agustin Metziquititlan, 1942 to 2011. The record is 236.8 mm (9.3 in) in 1956, marked on the chart; the median year is 62.6 mm (2.5 in).
Wettest five days (Rx5day) at San Agustin Metziquititlan by year
YearWettest five days (Rx5day)
194233.8 mm (1.3 in)
194357.9 mm (2.3 in)
1944146.6 mm (5.8 in)
194575.7 mm (3.0 in)
194667.4 mm (2.7 in)
1947118.3 mm (4.7 in)
194853.9 mm (2.1 in)
194986.1 mm (3.4 in)
195041.9 mm (1.6 in)
195138.1 mm (1.5 in)
1952141.0 mm (5.6 in)
195362.6 mm (2.5 in)
1954204.0 mm (8.0 in)
1955128.0 mm (5.0 in)
1956236.8 mm (9.3 in)
195741.5 mm (1.6 in)
1958137.2 mm (5.4 in)
1959101.5 mm (4.0 in)
196053.4 mm (2.1 in)
1961102.4 mm (4.0 in)
196264.2 mm (2.5 in)
196339.2 mm (1.5 in)
196435.0 mm (1.4 in)
196539.9 mm (1.6 in)
196654.9 mm (2.2 in)
196765.9 mm (2.6 in)
196858.6 mm (2.3 in)
1970122.5 mm (4.8 in)
1972106.0 mm (4.2 in)
1973126.7 mm (5.0 in)
1974203.0 mm (8.0 in)
1975105.1 mm (4.1 in)
197655.1 mm (2.2 in)
19770.0 mm (0.00 in)
200751.8 mm (2.0 in)
200830.5 mm (1.2 in)
20097.8 mm (0.31 in)
201026.6 mm (1.0 in)
201138.3 mm (1.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at San Agustin Metziquititlan by year The longest dry spell of the year at San Agustin Metziquititlan, 1942 to 2011. The record is 114 days in 1943, marked on the chart; the median year is 50 days. 0255075100125196019802000Record: 114 days in 1943
The longest dry spell of the year at San Agustin Metziquititlan, 1942 to 2011. The record is 114 days in 1943, marked on the chart; the median year is 50 days.
Longest dry spell (CDD) at San Agustin Metziquititlan by year
YearLongest dry spell (CDD)
194220 days
1943114 days
194450 days
194593 days
194653 days
194798 days
194840 days
194960 days
195066 days
195173 days
195250 days
195376 days
195478 days
195577 days
1956105 days
195742 days
195858 days
195956 days
196098 days
196130 days
196230 days
196330 days
196426 days
196523 days
196620 days
196729 days
196830 days
197082 days
197239 days
197394 days
197443 days
197555 days
197643 days
197731 days
200724 days
200865 days
200942 days
201035 days
201136 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

36 years, 1943 to 2011

A day with at least 39.8 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 137.5 mm (5.4 in) of rain is expected about once in 100 years.

Rainfall return levels at San Agustin Metziquititlan: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years39.8 mm (1.6 in)
5 years63.0 mm (2.5 in)
10 years79.5 mm (3.1 in)
25 years101.7 mm (4.0 in)
50 years119.2 mm (4.7 in)Longer than the 36 years of record
100 years137.5 mm (5.4 in)Longer than the 36 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, 36 years of values from 1943 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: 119.9 mm (4.7 in) in 1954; 91.9 mm (3.6 in) in 1974; 87.1 mm (3.4 in) in 1947.

Download the Data

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