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Ciudad del Maiz (Smn) Weather Records (MXN00024116)

Record envelope, standing records and threshold days for Ciudad del Maiz (Smn) (MXN00024116), Mexico, with 60 years of record.

Key Facts for Ciudad del Maiz (Smn)

  • Ciudad del Maiz (Smn) (MXN00024116) is a weather station in Mexico at 22.38 latitude and -99.60 longitude, 1,241 m (4,071 ft) above sea level.
  • The station reports from 1923 to 1982, 60 years of record.
  • 1,464 records set at Ciudad del Maiz (Smn) still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Ciudad del Maiz (Smn) tied a daily record low maximum temperature of 20.6 C (69.1 F) on 30 June 1982.

About the Station

  • Location: Mexico, 22.38 latitude, -99.60 longitude.
  • Elevation: 1,241 m (4,071 ft).
  • Period of record: 1923 to 1982, 60 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 Ciudad del Maiz (Smn), with 2026 drawn through them The band shows the record high and record low for each calendar day at Ciudad del Maiz (Smn). The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Ciudad del Maiz (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 Ciudad del Maiz (Smn), with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan38.9 C (102.0 F)-6.1 C (21.0 F)n/an/a
Feb42.8 C (109.0 F)-6.1 C (21.0 F)n/an/a
Mar42.8 C (109.0 F)-3.3 C (26.1 F)n/an/a
Apr45.6 C (114.1 F)0.0 C (32.0 F)n/an/a
May43.3 C (109.9 F)0.6 C (33.1 F)n/an/a
Jun42.8 C (109.0 F)2.8 C (37.0 F)n/an/a
Jul41.7 C (107.1 F)5.0 C (41.0 F)n/an/a
Aug45.0 C (113.0 F)5.0 C (41.0 F)n/an/a
Sep42.2 C (108.0 F)3.9 C (39.0 F)n/an/a
Oct40.6 C (105.1 F)1.7 C (35.1 F)n/an/a
Nov38.9 C (102.0 F)-3.9 C (25.0 F)n/an/a
Dec37.2 C (99.0 F)-6.1 C (21.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Ciudad del Maiz (Smn) by the year they were set 1,464 records at Ciudad del Maiz (Smn) still stand. 1974 holds the most, with 102. 0501001501923: 261924: 491925: 271926: 161927: 281929: 361930: 431931: 361932: 181944: 231945: 451946: 341947: 41955: 161956: 571957: 431958: 231959: 311960: 391961: 241962: 331963: 221964: 261965: 191966: 361968: 451969: 271970: 381971: 311972: 841973: 81974: 1021975: 721976: 481977: 281978: 971979: 231980: 411981: 451982: 211923192719321947195819621966197119751979
1,464 records at Ciudad del Maiz (Smn) still stand. 1974 holds the most, with 102.
Standing records at Ciudad del Maiz (Smn) by the year they were set
Year setStanding records
192326
192449
192527
192616
192728
192936
193043
193136
193218
194423
194545
194634
19474
195516
195657
195743
195823
195931
196039
196124
196233
196322
196426
196519
196636
196845
196927
197038
197131
197284
19738
1974102
197572
197648
197728
197897
197923
198041
198145
198221

Wettest Day of Each Month

Sep: 349.8 mm (13.8 in)
Record daily precipitation for each month at Ciudad del Maiz (Smn) The wettest day on record for each calendar month at Ciudad del Maiz (Smn). The most was 349.8 mm (13.8 in) on 19 September 1955. 0100200300400 Jan: 57.9 mm (2.3 in), 6 January 1948 Jan Feb: 125.0 mm (4.9 in), 14 February 1923 Feb Mar: 99.8 mm (3.9 in), 21 March 1923 Mar Apr: 67.8 mm (2.7 in), 11 April 1946 Apr May: 41.9 mm (1.6 in), 31 May 1945 May Jun: 121.2 mm (4.8 in), 22 June 1973 Jun Jul: 114.8 mm (4.5 in), 16 July 1970 Jul Aug: 55.9 mm (2.2 in), 9 August 1958 Aug Sep: 349.8 mm (13.8 in), 19 September 1955 Sep Oct: 126.0 mm (5.0 in), 9 October 1968 Oct Nov: 34.8 mm (1.4 in), 5 November 1963 Nov Dec: 34.3 mm (1.4 in), 3 December 1971 Dec
The wettest day on record for each calendar month at Ciudad del Maiz (Smn). The most was 349.8 mm (13.8 in) on 19 September 1955.
Record daily precipitation for each month at Ciudad del Maiz (Smn)
MonthRecord daily precipitation (mm)Date
Jan57.9 mm (2.3 in)6 January 1948
Feb125.0 mm (4.9 in)14 February 1923
Mar99.8 mm (3.9 in)21 March 1923
Apr67.8 mm (2.7 in)11 April 1946
May41.9 mm (1.6 in)31 May 1945
Jun121.2 mm (4.8 in)22 June 1973
Jul114.8 mm (4.5 in)16 July 1970
Aug55.9 mm (2.2 in)9 August 1958
Sep349.8 mm (13.8 in)19 September 1955
Oct126.0 mm (5.0 in)9 October 1968
Nov34.8 mm (1.4 in)5 November 1963
Dec34.3 mm (1.4 in)3 December 1971

Period of Record Coverage

1923 to 1982
Days with data per year at Ciudad del Maiz (Smn) 40 years of record at Ciudad del Maiz (Smn), 1923 to 1982. 16 years have data for under 90 percent of days and are left out of rankings: 1923, 1925, 1926, 1927, 1929, 1930, 1932, 1944 and others. 1923: 292 of 365 days1924: 364 of 366 days1925: 304 of 365 days1926: 153 of 365 days1927: 181 of 365 days1929: 61 of 365 days1930: 183 of 365 days1931: 365 of 365 days1932: 182 of 366 days1944: 122 of 366 days1945: 212 of 365 days1946: 305 of 365 days1947: 44 of 365 days1955: 128 of 365 days1956: 364 of 366 days1957: 361 of 365 days1958: 363 of 365 days1959: 365 of 365 days1960: 365 of 366 days1961: 362 of 365 days1962: 365 of 365 days1963: 333 of 365 days1964: 364 of 366 days1965: 363 of 365 days1966: 332 of 365 days1968: 364 of 366 days1969: 363 of 365 days1970: 365 of 365 days1971: 359 of 365 days1972: 298 of 366 days1973: 274 of 365 days1974: 284 of 365 days1975: 355 of 365 days1976: 365 of 366 days1977: 365 of 365 days1978: 355 of 365 days1979: 363 of 365 days1980: 364 of 366 days1981: 360 of 365 days1982: 176 of 365 days192519301945195519601965197019751980
40 years of record at Ciudad del Maiz (Smn), 1923 to 1982. 16 years have data for under 90 percent of days and are left out of rankings: 1923, 1925, 1926, 1927, 1929, 1930, 1932, 1944 and others.
Days with data per year at Ciudad del Maiz (Smn)
YearDays with dataShare of yearComplete
192329280%No
192436499%Yes
192530483%No
192615342%No
192718150%No
19296117%No
193018350%No
1931365100%Yes
193218250%No
194412233%No
194521258%No
194630584%No
19474412%No
195512835%No
195636499%Yes
195736199%Yes
195836399%Yes
1959365100%Yes
1960365100%Yes
196136299%Yes
1962365100%Yes
196333391%Yes
196436499%Yes
196536399%Yes
196633291%Yes
196836499%Yes
196936399%Yes
1970365100%Yes
197135998%Yes
197229881%No
197327475%No
197428478%No
197535597%Yes
1976365100%Yes
1977365100%Yes
197835597%Yes
197936399%Yes
198036499%Yes
198136099%Yes
198217648%No

Latest Records

20
Latest records at Ciudad del Maiz (Smn)
DateStationRecordValueBeat old record byOld record stoodSignificance
30 June 1982Ciudad del Maiz (Smn), MXdaily low max (Tie)20.6 C (69.1 F)tie4 years1 of 100 (Routine)
12 June 1982Ciudad del Maiz (Smn), MXdaily high min (Tie)20.0 C (68.0 F)tie36 years4 of 100 (Routine)
9 June 1982Ciudad del Maiz (Smn), MXdaily high min (Tie)20.0 C (68.0 F)tie12 years2 of 100 (Routine)
28 May 1982Ciudad del Maiz (Smn), MXdaily high min (Tie)18.3 C (64.9 F)tie49 years5 of 100 (Routine)
12 May 1982Ciudad del Maiz (Smn), MXdaily low max (Tie)21.7 C (71.1 F)tie4 years1 of 100 (Routine)
8 May 1982Ciudad del Maiz (Smn), MXdaily low min8.9 C (48.0 F)1.1 C (2.0 F)3 years10 of 100 (Routine)
7 May 1982Ciudad del Maiz (Smn), MXdaily low min (Tie)10.0 C (50.0 F)tie3 years1 of 100 (Routine)
30 April 1982Ciudad del Maiz (Smn), MXdaily low max (Tie)21.7 C (71.1 F)tie0 years1 of 100 (Routine)
27 April 1982Ciudad del Maiz (Smn), MXdaily low max18.9 C (66.0 F)1.1 C (2.0 F)0 years7 of 100 (Routine)
25 April 1982Ciudad del Maiz (Smn), MXdaily low max17.8 C (64.0 F)5.0 C (9.0 F)4 years15 of 100 (Routine)
24 April 1982Ciudad del Maiz (Smn), MXdaily low max17.8 C (64.0 F)2.2 C (4.0 F)13 years13 of 100 (Routine)
23 April 1982Ciudad del Maiz (Smn), MXdaily low max20.0 C (68.0 F)0.6 C (1.1 F)51 years22 of 100 (Routine)
19 April 1982Ciudad del Maiz (Smn), MXdaily low max18.9 C (66.0 F)1.1 C (2.0 F)4 years8 of 100 (Routine)
17 April 1982Ciudad del Maiz (Smn), MXdaily low max18.9 C (66.0 F)1.7 C (3.1 F)25 years15 of 100 (Routine)
7 April 1982Ciudad del Maiz (Smn), MXdaily low max18.9 C (66.0 F)1.1 C (2.0 F)4 years8 of 100 (Routine)
5 April 1982Ciudad del Maiz (Smn), MXdaily low max16.7 C (62.1 F)2.2 C (4.0 F)4 years10 of 100 (Routine)
29 March 1982Ciudad del Maiz (Smn), MXdaily low max15.6 C (60.1 F)2.2 C (4.0 F)8 years11 of 100 (Routine)
9 March 1982Ciudad del Maiz (Smn), MXdaily low max (Tie)12.8 C (55.0 F)tie0 years1 of 100 (Routine)
7 March 1982Ciudad del Maiz (Smn), MXdaily low max11.7 C (53.1 F)2.2 C (4.0 F)0 years9 of 100 (Routine)
6 March 1982Ciudad del Maiz (Smn), MXdaily low max (Tie)15.0 C (59.0 F)tie13 years2 of 100 (Routine)

Climate Trend

22 complete years, 1924 to 1981
Annual mean temperature at Ciudad del Maiz (Smn) as warming stripes, 1924 to 1981 One stripe for each of 22 complete years at Ciudad del Maiz (Smn), 1924 to 1981. Blue stripes are years cooler than the station's own mean of 19.2 C (66.5 F); red stripes are warmer. The coolest year was 1978, at 15.7 C (60.3 F), and the warmest was 1924, at 21.3 C (70.4 F). The strongest colour marks a difference of 3.5 C (6.3 F). 1924: 21.3 C, +2.1 C from the station mean1931: 20.1 C, +0.9 C from the station mean1956: 19.7 C, +0.5 C from the station mean1957: 20.6 C, +1.4 C from the station mean1958: 19.9 C, +0.7 C from the station mean1959: 19.7 C, +0.5 C from the station mean1960: 19.4 C, +0.2 C from the station mean1961: 19.3 C, +0.1 C from the station mean1962: 19.2 C, +0.1 C from the station mean1964: 19.2 C, 0.0 C from the station mean1965: 19.2 C, +0.1 C from the station mean1968: 18.6 C, -0.6 C from the station mean1969: 20.2 C, +1.1 C from the station mean1970: 20.4 C, +1.2 C from the station mean1971: 20.6 C, +1.4 C from the station mean1975: 19.6 C, +0.4 C from the station mean1976: 17.5 C, -1.7 C from the station mean1977: 17.7 C, -1.5 C from the station mean1978: 15.7 C, -3.4 C from the station mean1979: 18.6 C, -0.6 C from the station mean1980: 18.2 C, -1.0 C from the station mean1981: 17.1 C, -2.0 C from the station mean192419301935194019451950195519601965197019751980
One stripe for each of 22 complete years at Ciudad del Maiz (Smn), 1924 to 1981. Blue stripes are years cooler than the station's own mean of 19.2 C (66.5 F); red stripes are warmer. The coolest year was 1978, at 15.7 C (60.3 F), and the warmest was 1924, at 21.3 C (70.4 F). The strongest colour marks a difference of 3.5 C (6.3 F).
Annual mean temperature at Ciudad del Maiz (Smn) as warming stripes, 1924 to 1981
YearAnnual mean temperatureDifference from the station mean
192421.3 C+2.15 C
193120.1 C+0.92 C
195619.7 C+0.54 C
195720.6 C+1.40 C
195819.9 C+0.70 C
195919.7 C+0.51 C
196019.4 C+0.21 C
196119.3 C+0.10 C
196219.2 C+0.07 C
196419.2 C+0.02 C
196519.2 C+0.06 C
196818.6 C-0.56 C
196920.2 C+1.07 C
197020.4 C+1.22 C
197120.6 C+1.42 C
197519.6 C+0.42 C
197617.5 C-1.72 C
197717.7 C-1.49 C
197815.7 C-3.43 C
197918.6 C-0.58 C
198018.2 C-0.95 C
198117.1 C-2.03 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

1923 to 1982
Yearly extremes at Ciudad del Maiz (Smn): the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.6 C (114.1 F)197138.9 C (102.0 F)40
Coldest night (TNn)-6.1 C (21.0 F)1957-0.6 C (30.9 F)40
Wettest day (Rx1day)349.8 mm (13.8 in)195557.4 mm (2.3 in)48
Wettest five days (Rx5day)571.4 mm (22.5 in)1955103.8 mm (4.1 in)48
Longest dry spell (CDD)184 days193073 days48

Hottest day (TXx)

Hottest day (TXx) at Ciudad del Maiz (Smn) by year The hottest day of the year at Ciudad del Maiz (Smn), 1923 to 1982. The record is 45.6 C (114.1 F) in 1971, marked on the chart; the median year is 38.9 C (102.0 F). 3035404550193019401950196019701980Record: 45.6 C (114.1 F) in 1971
The hottest day of the year at Ciudad del Maiz (Smn), 1923 to 1982. The record is 45.6 C (114.1 F) in 1971, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Ciudad del Maiz (Smn) by year
YearHottest day (TXx)
192341.7 C (107.1 F)
192442.8 C (109.0 F)
192541.7 C (107.1 F)
192636.1 C (97.0 F)
192741.7 C (107.1 F)
192945.0 C (113.0 F)
193038.9 C (102.0 F)
193138.9 C (102.0 F)
193236.7 C (98.1 F)
1942n/a
1943n/a
194435.0 C (95.0 F)
194543.3 C (109.9 F)
194643.3 C (109.9 F)
194737.8 C (100.0 F)
1948n/a
1949n/a
1951n/a
1952n/a
1953n/a
1954n/a
195534.4 C (93.9 F)
195637.8 C (100.0 F)
195741.7 C (107.1 F)
195841.1 C (106.0 F)
195938.9 C (102.0 F)
196037.8 C (100.0 F)
196139.4 C (102.9 F)
196236.7 C (98.1 F)
196338.3 C (100.9 F)
196441.1 C (106.0 F)
196537.8 C (100.0 F)
196636.1 C (97.0 F)
196837.8 C (100.0 F)
196938.9 C (102.0 F)
197041.7 C (107.1 F)
197145.6 C (114.1 F)
197240.0 C (104.0 F)
197344.4 C (111.9 F)
197442.2 C (108.0 F)
197545.6 C (114.1 F)
197635.0 C (95.0 F)
197732.8 C (91.0 F)
197830.0 C (86.0 F)
197938.9 C (102.0 F)
198039.4 C (102.9 F)
198130.6 C (87.1 F)
198239.4 C (102.9 F)

Coldest night (TNn)

Coldest night (TNn) at Ciudad del Maiz (Smn) by year The coldest night of the year at Ciudad del Maiz (Smn), 1923 to 1982. The record is -6.1 C (21.0 F) in 1957, marked on the chart; the median year is -0.6 C (30.9 F). -10-50510193019401950196019701980Record: -6.1 C (21.0 F) in 1957
The coldest night of the year at Ciudad del Maiz (Smn), 1923 to 1982. The record is -6.1 C (21.0 F) in 1957, marked on the chart; the median year is -0.6 C (30.9 F).
Coldest night (TNn) at Ciudad del Maiz (Smn) by year
YearColdest night (TNn)
19230.0 C (32.0 F)
1924-3.3 C (26.1 F)
1925-4.4 C (24.1 F)
19260.6 C (33.1 F)
19272.8 C (37.0 F)
19295.6 C (42.1 F)
19302.8 C (37.0 F)
19311.7 C (35.1 F)
1932-3.3 C (26.1 F)
1942n/a
1943n/a
1944-2.2 C (28.0 F)
19451.7 C (35.1 F)
19461.7 C (35.1 F)
19470.0 C (32.0 F)
1948n/a
1949n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955-1.7 C (28.9 F)
1956-5.0 C (23.0 F)
1957-6.1 C (21.0 F)
1958-3.3 C (26.1 F)
1959-2.2 C (28.0 F)
1960-6.1 C (21.0 F)
1961-2.2 C (28.0 F)
1962-6.1 C (21.0 F)
1963-3.3 C (26.1 F)
1964-4.4 C (24.1 F)
1965-4.4 C (24.1 F)
1966-3.9 C (25.0 F)
1968-2.2 C (28.0 F)
19690.0 C (32.0 F)
19700.0 C (32.0 F)
19710.6 C (33.1 F)
19722.8 C (37.0 F)
19732.2 C (36.0 F)
1974-0.6 C (30.9 F)
1975-0.6 C (30.9 F)
1976-1.1 C (30.0 F)
19770.6 C (33.1 F)
19780.6 C (33.1 F)
19790.6 C (33.1 F)
1980-0.6 C (30.9 F)
19815.6 C (42.1 F)
19820.0 C (32.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Ciudad del Maiz (Smn) by year The wettest day of the year at Ciudad del Maiz (Smn), 1923 to 1982. The record is 349.8 mm (13.8 in) in 1955, marked on the chart; the median year is 57.4 mm (2.3 in). 0100200300400193019401950196019701980Record: 349.8 mm (13.8 in) in 1955
The wettest day of the year at Ciudad del Maiz (Smn), 1923 to 1982. The record is 349.8 mm (13.8 in) in 1955, marked on the chart; the median year is 57.4 mm (2.3 in).
Wettest day (Rx1day) at Ciudad del Maiz (Smn) by year
YearWettest day (Rx1day)
1923125.0 mm (4.9 in)
192447.8 mm (1.9 in)
192534.8 mm (1.4 in)
192659.9 mm (2.4 in)
192759.9 mm (2.4 in)
19296.9 mm (0.27 in)
19303.8 mm (0.15 in)
19316.4 mm (0.25 in)
193223.4 mm (0.9 in)
194248.3 mm (1.9 in)
194341.9 mm (1.6 in)
194448.8 mm (1.9 in)
194541.9 mm (1.6 in)
194667.8 mm (2.7 in)
194748.3 mm (1.9 in)
1948106.9 mm (4.2 in)
194931.8 mm (1.3 in)
195160.5 mm (2.4 in)
195251.3 mm (2.0 in)
195359.9 mm (2.4 in)
195470.4 mm (2.8 in)
1955349.8 mm (13.8 in)
1956108.0 mm (4.3 in)
195745.0 mm (1.8 in)
195874.9 mm (2.9 in)
195975.4 mm (3.0 in)
196054.9 mm (2.2 in)
196183.8 mm (3.3 in)
196264.8 mm (2.6 in)
196349.8 mm (2.0 in)
196430.0 mm (1.2 in)
196530.0 mm (1.2 in)
1966121.9 mm (4.8 in)
1968126.0 mm (5.0 in)
1969120.4 mm (4.7 in)
1970114.8 mm (4.5 in)
197136.8 mm (1.4 in)
197236.8 mm (1.4 in)
1973121.2 mm (4.8 in)
197480.3 mm (3.2 in)
197567.1 mm (2.6 in)
197635.8 mm (1.4 in)
1977175.8 mm (6.9 in)
197874.9 mm (2.9 in)
197931.0 mm (1.2 in)
198039.9 mm (1.6 in)
198171.1 mm (2.8 in)
198213.0 mm (0.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Ciudad del Maiz (Smn) by year The wettest five days of the year at Ciudad del Maiz (Smn), 1923 to 1982. The record is 571.4 mm (22.5 in) in 1955, marked on the chart; the median year is 103.8 mm (4.1 in). 0200400600193019401950196019701980Record: 571.4 mm (22.5 in) in 1955
The wettest five days of the year at Ciudad del Maiz (Smn), 1923 to 1982. The record is 571.4 mm (22.5 in) in 1955, marked on the chart; the median year is 103.8 mm (4.1 in).
Wettest five days (Rx5day) at Ciudad del Maiz (Smn) by year
YearWettest five days (Rx5day)
1923259.4 mm (10.2 in)
192480.5 mm (3.2 in)
192592.2 mm (3.6 in)
192666.8 mm (2.6 in)
1927184.5 mm (7.3 in)
192922.3 mm (0.9 in)
19303.8 mm (0.15 in)
193110.0 mm (0.4 in)
193242.2 mm (1.7 in)
1942106.0 mm (4.2 in)
194396.5 mm (3.8 in)
194494.8 mm (3.7 in)
194545.4 mm (1.8 in)
194689.7 mm (3.5 in)
1947131.7 mm (5.2 in)
1948201.6 mm (7.9 in)
194951.6 mm (2.0 in)
1951128.1 mm (5.0 in)
1952100.1 mm (3.9 in)
1953126.2 mm (5.0 in)
1954178.5 mm (7.0 in)
1955571.4 mm (22.5 in)
1956140.8 mm (5.5 in)
195756.8 mm (2.2 in)
1958167.1 mm (6.6 in)
1959190.5 mm (7.5 in)
1960100.3 mm (3.9 in)
1961192.5 mm (7.6 in)
1962102.4 mm (4.0 in)
196392.5 mm (3.6 in)
196470.6 mm (2.8 in)
196582.4 mm (3.2 in)
1966290.8 mm (11.4 in)
1968199.7 mm (7.9 in)
1969207.8 mm (8.2 in)
1970137.2 mm (5.4 in)
1971105.1 mm (4.1 in)
197272.2 mm (2.8 in)
1973207.6 mm (8.2 in)
1974205.0 mm (8.1 in)
1975177.4 mm (7.0 in)
197690.7 mm (3.6 in)
1977206.3 mm (8.1 in)
1978140.9 mm (5.5 in)
197982.7 mm (3.3 in)
198090.7 mm (3.6 in)
1981221.6 mm (8.7 in)
198218.6 mm (0.7 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Ciudad del Maiz (Smn) by year The longest dry spell of the year at Ciudad del Maiz (Smn), 1923 to 1982. The record is 184 days in 1930, marked on the chart; the median year is 73 days. 050100150200193019401950196019701980Record: 184 days in 1930
The longest dry spell of the year at Ciudad del Maiz (Smn), 1923 to 1982. The record is 184 days in 1930, marked on the chart; the median year is 73 days.
Longest dry spell (CDD) at Ciudad del Maiz (Smn) by year
YearLongest dry spell (CDD)
192330 days
192471 days
192551 days
192654 days
192736 days
1929121 days
1930184 days
193194 days
193259 days
194227 days
194383 days
194441 days
1945118 days
194645 days
1947106 days
194896 days
1949144 days
195134 days
195292 days
195391 days
195475 days
1955133 days
1956113 days
1957108 days
195889 days
195947 days
196099 days
1961126 days
196259 days
196358 days
1964100 days
196567 days
196635 days
196839 days
196991 days
197092 days
1971151 days
197278 days
197347 days
197439 days
197564 days
197649 days
197781 days
197835 days
197963 days
198057 days
198148 days
198279 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

33 years, 1923 to 1981

A day with at least 64.2 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 320.7 mm (12.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Ciudad del Maiz (Smn): the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years64.2 mm (2.5 in)
5 years108.5 mm (4.3 in)
10 years145.7 mm (5.7 in)
25 years204.1 mm (8.0 in)
50 years257.4 mm (10.1 in)Longer than the 33 years of record
100 years320.7 mm (12.6 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 1923 to 1981.

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: 349.8 mm (13.8 in) in 1955; 175.8 mm (6.9 in) in 1977; 126.0 mm (5.0 in) in 1968.

Download the Data

  • Data for Ciudad del Maiz (Smn) standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Ciudad del Maiz (Smn) threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

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