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Ciudad Constitucion Weather Records (MXM00076402)

Record envelope, standing records and threshold days for Ciudad Constitucion (MXM00076402), Mexico, with 70 years of record.

Key Facts for Ciudad Constitucion

  • Ciudad Constitucion (MXM00076402) is a weather station in Mexico at 24.95 latitude and -111.70 longitude, 48 m (157 ft) above sea level.
  • The station reports from 1957 to 2026, 70 years of record.
  • 1,464 records set at Ciudad Constitucion still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Ciudad Constitucion set a daily record high minimum temperature of 26.8 C (80.2 F) on 10 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Mexico, 24.95 latitude, -111.70 longitude.
  • Elevation: 48 m (157 ft).
  • Period of record: 1957 to 2026, 70 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

3 days at or beyond a record
Daily record high and record low at Ciudad Constitucion, with 2026 drawn through them The band shows the record high and record low for each calendar day at Ciudad Constitucion. The lines show the 2026 daily maximum and minimum. 3 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 Ciudad Constitucion. The lines show the 2026 daily maximum and minimum. 3 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Ciudad Constitucion, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan36.5 C (97.7 F)-2.0 C (28.4 F)n/an/a
Feb38.0 C (100.4 F)-1.5 C (29.3 F)n/an/a
Mar38.5 C (101.3 F)1.0 C (33.8 F)n/an/a
Apr42.0 C (107.6 F)2.0 C (35.6 F)36.4 C (97.5 F)9.0 C (48.2 F)
May45.0 C (113.0 F)4.0 C (39.2 F)41.7 C (107.1 F)11.8 C (53.2 F)
Jun45.8 C (114.4 F)6.0 C (42.8 F)39.2 C (102.6 F)21.6 C (70.9 F)
Jul45.5 C (113.9 F)10.0 C (50.0 F)39.8 C (103.6 F)17.0 C (62.6 F)
Aug44.0 C (111.2 F)9.0 C (48.2 F)41.6 C (106.9 F)21.8 C (71.2 F)
Sep46.0 C (114.8 F)10.0 C (50.0 F)41.8 C (107.2 F)20.0 C (68.0 F)
Oct43.0 C (109.4 F)5.0 C (41.0 F)38.3 C (100.9 F)22.2 C (72.0 F)
Nov39.4 C (102.9 F)2.0 C (35.6 F)n/an/a
Dec36.2 C (97.2 F)-3.0 C (26.6 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Ciudad Constitucion by the year they were set 1,464 records at Ciudad Constitucion still stand. 1982 holds the most, with 76. 0204060801957: 381958: 521959: 491960: 261961: 261962: 201963: 201964: 241965: 191966: 171967: 181968: 111969: 171970: 101971: 291972: 171973: 351974: 171975: 411976: 181977: 131978: 501979: 561980: 341981: 141982: 761983: 151984: 241985: 221986: 241987: 471988: 251989: 71990: 191991: 201992: 231993: 311994: 81995: 301996: 241997: 291998: 71999: 72000: 122001: 142002: 172003: 92004: 62005: 102006: 62007: 72008: 62009: 122010: 52011: 42012: 52013: 72014: 202015: 232016: 232017: 152018: 112019: 42020: 122021: 22022: 72023: 132024: 62025: 352026: 641957196419711978198519921999200620132020
1,464 records at Ciudad Constitucion still stand. 1982 holds the most, with 76.
Standing records at Ciudad Constitucion by the year they were set
Year setStanding records
195738
195852
195949
196026
196126
196220
196320
196424
196519
196617
196718
196811
196917
197010
197129
197217
197335
197417
197541
197618
197713
197850
197956
198034
198114
198276
198315
198424
198522
198624
198747
198825
19897
199019
199120
199223
199331
19948
199530
199624
199729
19987
19997
200012
200114
200217
20039
20046
200510
20066
20077
20086
200912
20105
20114
20125
20137
201420
201523
201623
201715
201811
20194
202012
20212
20227
202313
20246
202535
202664

All-Time Record Progression

9 new records
When Ciudad Constitucion set new all-time records 9 all-time records were set at Ciudad Constitucion between 18 January 1987 and 17 July 2026. Each dot is a new record. Record low maximum temperatureRecord low minimum temperatureRecord daily precipitationRecord high minimum temperature18 January 1987: Record low maximum temperature 13.0 C (55.4 F)27 December 1987: Record low minimum temperature -3.0 C (26.6 F)5 September 1997: Record daily precipitation 117.4 mm (4.6 in)27 August 2003: Record daily precipitation 181.1 mm (7.1 in)29 July 2025: Record high minimum temperature 27.8 C (82.0 F)16 June 2026: Record high minimum temperature 27.9 C (82.2 F)22 June 2026: Record high minimum temperature 28.4 C (83.1 F)24 June 2026: Record high minimum temperature 30.8 C (87.4 F)17 July 2026: Record high minimum temperature 31.0 C (87.8 F)19901995200020052010201520202025
9 all-time records were set at Ciudad Constitucion between 18 January 1987 and 17 July 2026. Each dot is a new record.
When Ciudad Constitucion set new all-time records
DateKindDetail
1987-01-18Record low maximum temperatureRecord low maximum temperature 13.0 C (55.4 F)
1987-12-27Record low minimum temperatureRecord low minimum temperature -3.0 C (26.6 F)
1997-09-05Record daily precipitationRecord daily precipitation 117.4 mm (4.6 in)
2003-08-27Record daily precipitationRecord daily precipitation 181.1 mm (7.1 in)
2025-07-29Record high minimum temperatureRecord high minimum temperature 27.8 C (82.0 F)
2026-06-16Record high minimum temperatureRecord high minimum temperature 27.9 C (82.2 F)
2026-06-22Record high minimum temperatureRecord high minimum temperature 28.4 C (83.1 F)
2026-06-24Record high minimum temperatureRecord high minimum temperature 30.8 C (87.4 F)
2026-07-17Record high minimum temperatureRecord high minimum temperature 31.0 C (87.8 F)

Wettest Day of Each Month

Aug: 181.1 mm (7.1 in)
Record daily precipitation for each month at Ciudad Constitucion The wettest day on record for each calendar month at Ciudad Constitucion. The most was 181.1 mm (7.1 in) on 27 August 2003. 050100150200 Jan: 57.0 mm (2.2 in), 3 January 1992 Jan Feb: 31.5 mm (1.2 in), 15 February 1995 Feb Mar: 26.0 mm (1.0 in), 2 March 1983 Mar Apr: 54.1 mm (2.1 in), 22 April 2007 Apr May: 8.0 mm (0.31 in), 20 May 1997 May Jun: 22.0 mm (0.9 in), 23 June 1984 Jun Jul: 90.0 mm (3.5 in), 21 July 1983 Jul Aug: 181.1 mm (7.1 in), 27 August 2003 Aug Sep: 117.4 mm (4.6 in), 5 September 1997 Sep Oct: 104.1 mm (4.1 in), 17 October 2012 Oct Nov: 59.0 mm (2.3 in), 24 November 1967 Nov Dec: 70.0 mm (2.8 in), 8 December 1959 Dec
The wettest day on record for each calendar month at Ciudad Constitucion. The most was 181.1 mm (7.1 in) on 27 August 2003.
Record daily precipitation for each month at Ciudad Constitucion
MonthRecord daily precipitation (mm)Date
Jan57.0 mm (2.2 in)3 January 1992
Feb31.5 mm (1.2 in)15 February 1995
Mar26.0 mm (1.0 in)2 March 1983
Apr54.1 mm (2.1 in)22 April 2007
May8.0 mm (0.31 in)20 May 1997
Jun22.0 mm (0.9 in)23 June 1984
Jul90.0 mm (3.5 in)21 July 1983
Aug181.1 mm (7.1 in)27 August 2003
Sep117.4 mm (4.6 in)5 September 1997
Oct104.1 mm (4.1 in)17 October 2012
Nov59.0 mm (2.3 in)24 November 1967
Dec70.0 mm (2.8 in)8 December 1959

Period of Record Coverage

1957 to 2026
Days with data per year at Ciudad Constitucion 70 years of record at Ciudad Constitucion, 1957 to 2026. 36 years have data for under 90 percent of days and are left out of rankings: 1957, 1959, 1960, 1963, 1967, 1973, 1989, 1998 and others. 1957: 306 of 365 days1958: 365 of 365 days1959: 303 of 365 days1960: 270 of 366 days1961: 365 of 365 days1962: 334 of 365 days1963: 243 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 297 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 365 of 366 days1973: 303 of 365 days1974: 359 of 365 days1975: 364 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 335 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 345 of 366 days1989: 306 of 365 days1990: 339 of 365 days1991: 362 of 365 days1992: 363 of 366 days1993: 365 of 365 days1994: 335 of 365 days1995: 365 of 365 days1996: 365 of 366 days1997: 359 of 365 days1998: 79 of 365 days1999: 45 of 365 days2000: 237 of 366 days2001: 241 of 365 days2002: 239 of 365 days2003: 194 of 365 days2004: 193 of 366 days2005: 204 of 365 days2006: 201 of 365 days2007: 223 of 365 days2008: 224 of 366 days2009: 187 of 365 days2010: 176 of 365 days2011: 165 of 365 days2012: 218 of 366 days2013: 223 of 365 days2014: 214 of 365 days2015: 210 of 365 days2016: 223 of 366 days2017: 207 of 365 days2018: 185 of 365 days2019: 195 of 365 days2020: 209 of 366 days2021: 150 of 365 days2022: 119 of 365 days2023: 143 of 365 days2024: 155 of 366 days2025: 223 of 365 days2026: 114 of 365 days1960197019801990200020102020
70 years of record at Ciudad Constitucion, 1957 to 2026. 36 years have data for under 90 percent of days and are left out of rankings: 1957, 1959, 1960, 1963, 1967, 1973, 1989, 1998 and others.
Days with data per year at Ciudad Constitucion
YearDays with dataShare of yearComplete
195730684%No
1958365100%Yes
195930383%No
196027074%No
1961365100%Yes
196233492%Yes
196324367%No
1964366100%Yes
1965365100%Yes
1966365100%Yes
196729781%No
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972365100%Yes
197330383%No
197435998%Yes
1975364100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
198033592%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
198834594%Yes
198930684%No
199033993%Yes
199136299%Yes
199236399%Yes
1993365100%Yes
199433592%Yes
1995365100%Yes
1996365100%Yes
199735998%Yes
19987922%No
19994512%No
200023765%No
200124166%No
200223965%No
200319453%No
200419353%No
200520456%No
200620155%No
200722361%No
200822461%No
200918751%No
201017648%No
201116545%No
201221860%No
201322361%No
201421459%No
201521058%No
201622361%No
201720757%No
201818551%No
201919553%No
202020957%No
202115041%No
202211933%No
202314339%No
202415542%No
202522361%No
202611431%No

Latest Records

20
Latest records at Ciudad Constitucion
DateStationRecordValueBeat old record byOld record stoodSignificance
10 October 2026Ciudad Constitucion, MXdaily high min (Provisional)26.8 C (80.2 F)1.8 C (3.2 F)0 years12 of 100 (Routine)
9 October 2026Ciudad Constitucion, MXdaily high min (Provisional)28.2 C (82.8 F)2.4 C (4.3 F)0 years14 of 100 (Routine)
6 October 2026Ciudad Constitucion, MXdaily rain (Provisional)2.3 mm (0.09 in)2.3 mm (0.09 in)68 years20 of 100 (Routine)
6 October 2026Ciudad Constitucion, MXdaily high min (Provisional)24.9 C (76.8 F)1.9 C (3.4 F)35 years22 of 100 (Routine)
5 October 2026Ciudad Constitucion, MXdaily high min (Provisional)25.0 C (77.0 F)1.0 C (1.8 F)65 years29 of 100 (Routine)
4 October 2026Ciudad Constitucion, MXmonthly high min (Provisional)28.5 C (83.3 F)0.9 C (1.6 F)0 years19 of 100 (Routine)
30 September 2026Ciudad Constitucion, MXdaily high min (Provisional)25.5 C (77.9 F)1.9 C (3.4 F)8 years16 of 100 (Routine)
28 September 2026Ciudad Constitucion, MXdaily high min (Provisional)28.6 C (83.5 F)4.6 C (8.3 F)60 years42 of 100 (Notable)
27 September 2026Ciudad Constitucion, MXdaily high min (Provisional)28.9 C (84.0 F)4.3 C (7.7 F)0 years23 of 100 (Routine)
26 September 2026Ciudad Constitucion, MXdaily high min (Provisional)28.9 C (84.0 F)3.5 C (6.3 F)0 years20 of 100 (Routine)
24 September 2026Ciudad Constitucion, MXdaily rain (Provisional)18.5 mm (0.7 in)1.5 mm (0.06 in)33 years17 of 100 (Routine)
23 September 2026Ciudad Constitucion, MXdaily high min (Provisional)27.0 C (80.6 F)2.0 C (3.6 F)28 years22 of 100 (Routine)
21 September 2026Ciudad Constitucion, MXmonthly high min (Provisional)31.0 C (87.8 F)1.7 C (3.1 F)0 years23 of 100 (Routine)
20 September 2026Ciudad Constitucion, MXmonthly high min (Provisional)29.3 C (84.7 F)0.5 C (0.9 F)0 years18 of 100 (Routine)
19 September 2026Ciudad Constitucion, MXdaily high min (Provisional)27.4 C (81.3 F)2.0 C (3.6 F)24 years21 of 100 (Routine)
18 September 2026Ciudad Constitucion, MXdaily high min (Provisional)27.6 C (81.7 F)2.2 C (4.0 F)0 years15 of 100 (Routine)
16 September 2026Ciudad Constitucion, MXdaily rain (Provisional)55.8 mm (2.2 in)40.8 mm (1.6 in)56 years43 of 100 (Notable)
15 September 2026Ciudad Constitucion, MXdaily high min (Provisional)25.8 C (78.4 F)0.4 C (0.7 F)0 years8 of 100 (Routine)
8 September 2026Ciudad Constitucion, MXdaily high min (Provisional)27.4 C (81.3 F)1.6 C (2.9 F)0 years13 of 100 (Routine)
3 September 2026Ciudad Constitucion, MXdaily high max (Provisional)41.8 C (107.2 F)0.8 C (1.4 F)44 years22 of 100 (Routine)

Climate Trend

29 complete years, 1958 to 1997
Annual mean temperature at Ciudad Constitucion as warming stripes, 1958 to 1997 One stripe for each of 29 complete years at Ciudad Constitucion, 1958 to 1997. Blue stripes are years cooler than the station's own mean of 22.0 C (71.6 F); red stripes are warmer. The coolest year was 1975, at 20.1 C (68.2 F), and the warmest was 1997, at 24.0 C (75.2 F). The strongest colour marks a difference of 2.1 C (3.8 F). 1958: 23.2 C, +1.2 C from the station mean1961: 22.1 C, +0.1 C from the station mean1964: 21.3 C, -0.7 C from the station mean1965: 21.7 C, -0.4 C from the station mean1966: 22.2 C, +0.2 C from the station mean1968: 22.1 C, +0.1 C from the station mean1969: 22.1 C, +0.1 C from the station mean1970: 22.3 C, +0.3 C from the station mean1971: 21.7 C, -0.3 C from the station mean1972: 22.7 C, +0.7 C from the station mean1974: 21.3 C, -0.7 C from the station mean1975: 20.1 C, -1.9 C from the station mean1976: 21.1 C, -0.9 C from the station mean1977: 21.9 C, -0.1 C from the station mean1978: 22.2 C, +0.2 C from the station mean1979: 21.3 C, -0.8 C from the station mean1981: 22.4 C, +0.4 C from the station mean1982: 20.2 C, -1.8 C from the station mean1983: 22.7 C, +0.7 C from the station mean1984: 23.1 C, +1.0 C from the station mean1985: 21.6 C, -0.4 C from the station mean1986: 22.1 C, +0.1 C from the station mean1987: 20.8 C, -1.3 C from the station mean1991: 21.3 C, -0.7 C from the station mean1992: 22.1 C, +0.1 C from the station mean1993: 21.8 C, -0.2 C from the station mean1995: 23.4 C, +1.4 C from the station mean1996: 23.6 C, +1.6 C from the station mean1997: 24.0 C, +2.0 C from the station mean19581965197019751980198519901995
One stripe for each of 29 complete years at Ciudad Constitucion, 1958 to 1997. Blue stripes are years cooler than the station's own mean of 22.0 C (71.6 F); red stripes are warmer. The coolest year was 1975, at 20.1 C (68.2 F), and the warmest was 1997, at 24.0 C (75.2 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Ciudad Constitucion as warming stripes, 1958 to 1997
YearAnnual mean temperatureDifference from the station mean
195823.2 C+1.19 C
196122.1 C+0.11 C
196421.3 C-0.74 C
196521.7 C-0.36 C
196622.2 C+0.20 C
196822.1 C+0.13 C
196922.1 C+0.13 C
197022.3 C+0.28 C
197121.7 C-0.33 C
197222.7 C+0.68 C
197421.3 C-0.74 C
197520.1 C-1.92 C
197621.1 C-0.90 C
197721.9 C-0.09 C
197822.2 C+0.23 C
197921.3 C-0.75 C
198122.4 C+0.37 C
198220.2 C-1.77 C
198322.7 C+0.68 C
198423.1 C+1.04 C
198521.6 C-0.41 C
198622.1 C+0.10 C
198720.8 C-1.25 C
199121.3 C-0.72 C
199222.1 C+0.08 C
199321.8 C-0.23 C
199523.4 C+1.37 C
199623.6 C+1.62 C
199724.0 C+2.01 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

1957 to 2026
Yearly extremes at Ciudad Constitucion: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)46.0 C (114.8 F)198242.0 C (107.6 F)70
Coldest night (TNn)-3.0 C (26.6 F)19872.3 C (36.1 F)70
Wettest day (Rx1day)181.1 mm (7.1 in)200341.0 mm (1.6 in)69
Wettest five days (Rx5day)201.2 mm (7.9 in)200344.5 mm (1.8 in)69
Longest dry spell (CDD)252 days1980111 days69

Hottest day (TXx)

Hottest day (TXx) at Ciudad Constitucion by year The hottest day of the year at Ciudad Constitucion, 1957 to 2026. The record is 46.0 C (114.8 F) in 1982, marked on the chart; the median year is 42.0 C (107.6 F). 38404244461960198020002020Record: 46.0 C (114.8 F) in 1982
The hottest day of the year at Ciudad Constitucion, 1957 to 2026. The record is 46.0 C (114.8 F) in 1982, marked on the chart; the median year is 42.0 C (107.6 F).
Hottest day (TXx) at Ciudad Constitucion by year
YearHottest day (TXx)
195742.0 C (107.6 F)
195845.0 C (113.0 F)
195940.0 C (104.0 F)
196042.0 C (107.6 F)
196141.0 C (105.8 F)
196241.0 C (105.8 F)
196340.0 C (104.0 F)
196440.0 C (104.0 F)
196540.0 C (104.0 F)
196642.5 C (108.5 F)
196741.0 C (105.8 F)
196841.0 C (105.8 F)
196941.0 C (105.8 F)
197041.0 C (105.8 F)
197140.0 C (104.0 F)
197243.0 C (109.4 F)
197340.0 C (104.0 F)
197438.0 C (100.4 F)
197540.0 C (104.0 F)
197641.0 C (105.8 F)
197741.0 C (105.8 F)
197844.0 C (111.2 F)
197944.0 C (111.2 F)
198045.0 C (113.0 F)
198142.0 C (107.6 F)
198246.0 C (114.8 F)
198342.0 C (107.6 F)
198445.0 C (113.0 F)
198542.0 C (107.6 F)
198642.5 C (108.5 F)
198743.0 C (109.4 F)
198843.0 C (109.4 F)
198943.0 C (109.4 F)
199041.0 C (105.8 F)
199141.0 C (105.8 F)
199243.0 C (109.4 F)
199341.0 C (105.8 F)
199442.0 C (107.6 F)
199542.5 C (108.5 F)
199643.0 C (109.4 F)
199745.5 C (113.9 F)
199841.8 C (107.2 F)
199942.2 C (108.0 F)
200043.8 C (110.8 F)
200143.8 C (110.8 F)
200243.2 C (109.8 F)
200342.0 C (107.6 F)
200442.9 C (109.2 F)
200542.8 C (109.0 F)
200642.5 C (108.5 F)
200740.6 C (105.1 F)
200843.4 C (110.1 F)
200942.0 C (107.6 F)
201044.0 C (111.2 F)
201143.0 C (109.4 F)
201242.5 C (108.5 F)
201342.0 C (107.6 F)
201445.8 C (114.4 F)
201543.2 C (109.8 F)
201643.5 C (110.3 F)
201742.5 C (108.5 F)
201842.0 C (107.6 F)
201941.4 C (106.5 F)
202042.0 C (107.6 F)
202142.2 C (108.0 F)
202240.0 C (104.0 F)
202343.6 C (110.5 F)
202442.8 C (109.0 F)
202540.4 C (104.7 F)
202641.8 C (107.2 F)

Coldest night (TNn)

Coldest night (TNn) at Ciudad Constitucion by year The coldest night of the year at Ciudad Constitucion, 1957 to 2026. The record is -3.0 C (26.6 F) in 1987, marked on the chart; the median year is 2.3 C (36.1 F). -505101960198020002020Record: -3.0 C (26.6 F) in 1987
The coldest night of the year at Ciudad Constitucion, 1957 to 2026. The record is -3.0 C (26.6 F) in 1987, marked on the chart; the median year is 2.3 C (36.1 F).
Coldest night (TNn) at Ciudad Constitucion by year
YearColdest night (TNn)
19572.0 C (35.6 F)
19584.0 C (39.2 F)
19595.0 C (41.0 F)
19605.0 C (41.0 F)
19614.0 C (39.2 F)
19622.0 C (35.6 F)
19632.0 C (35.6 F)
19641.0 C (33.8 F)
19651.0 C (33.8 F)
19662.5 C (36.5 F)
19671.5 C (34.7 F)
19683.5 C (38.3 F)
19693.0 C (37.4 F)
19704.0 C (39.2 F)
19712.0 C (35.6 F)
19724.0 C (39.2 F)
19732.0 C (35.6 F)
19741.0 C (33.8 F)
1975-1.5 C (29.3 F)
19761.0 C (33.8 F)
19772.5 C (36.5 F)
1978-2.0 C (28.4 F)
1979-0.5 C (31.1 F)
19802.0 C (35.6 F)
19812.0 C (35.6 F)
19821.0 C (33.8 F)
19832.5 C (36.5 F)
19841.0 C (33.8 F)
1985-1.0 C (30.2 F)
19861.0 C (33.8 F)
1987-3.0 C (26.6 F)
1988-3.0 C (26.6 F)
19892.0 C (35.6 F)
1990-1.0 C (30.2 F)
1991-1.0 C (30.2 F)
19923.0 C (37.4 F)
19932.0 C (35.6 F)
19942.0 C (35.6 F)
19952.0 C (35.6 F)
19962.5 C (36.5 F)
19971.5 C (34.7 F)
19985.2 C (41.4 F)
19994.0 C (39.2 F)
20002.0 C (35.6 F)
20010.8 C (33.4 F)
20021.2 C (34.2 F)
20034.5 C (40.1 F)
20042.4 C (36.3 F)
20054.2 C (39.6 F)
20063.6 C (38.5 F)
20072.6 C (36.7 F)
20082.4 C (36.3 F)
20093.0 C (37.4 F)
20102.6 C (36.7 F)
20113.6 C (38.5 F)
20124.8 C (40.6 F)
20131.6 C (34.9 F)
20141.4 C (34.5 F)
20154.8 C (40.6 F)
20163.6 C (38.5 F)
20173.5 C (38.3 F)
20182.6 C (36.7 F)
20193.4 C (38.1 F)
20204.0 C (39.2 F)
20212.2 C (36.0 F)
20224.8 C (40.6 F)
20231.8 C (35.2 F)
20243.8 C (38.8 F)
20254.0 C (39.2 F)
20269.0 C (48.2 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Ciudad Constitucion by year The wettest day of the year at Ciudad Constitucion, 1957 to 2026. The record is 181.1 mm (7.1 in) in 2003, marked on the chart; the median year is 41.0 mm (1.6 in). 0501001502001960198020002020Record: 181.1 mm (7.1 in) in 2003
The wettest day of the year at Ciudad Constitucion, 1957 to 2026. The record is 181.1 mm (7.1 in) in 2003, marked on the chart; the median year is 41.0 mm (1.6 in).
Wettest day (Rx1day) at Ciudad Constitucion by year
YearWettest day (Rx1day)
195738.0 mm (1.5 in)
195840.5 mm (1.6 in)
195985.0 mm (3.3 in)
196034.0 mm (1.3 in)
196154.0 mm (2.1 in)
196243.0 mm (1.7 in)
19635.0 mm (0.20 in)
196440.0 mm (1.6 in)
196547.0 mm (1.9 in)
196630.0 mm (1.2 in)
196759.0 mm (2.3 in)
196830.0 mm (1.2 in)
196941.0 mm (1.6 in)
197041.0 mm (1.6 in)
197143.0 mm (1.7 in)
197258.6 mm (2.3 in)
197325.7 mm (1.0 in)
197431.0 mm (1.2 in)
197544.5 mm (1.8 in)
197652.0 mm (2.0 in)
197745.0 mm (1.8 in)
197819.0 mm (0.7 in)
1979100.0 mm (3.9 in)
19802.0 mm (0.08 in)
198131.0 mm (1.2 in)
198226.5 mm (1.0 in)
1983110.0 mm (4.3 in)
198445.0 mm (1.8 in)
198510.0 mm (0.4 in)
198638.0 mm (1.5 in)
198730.0 mm (1.2 in)
198814.6 mm (0.6 in)
198937.0 mm (1.5 in)
199051.0 mm (2.0 in)
199156.0 mm (2.2 in)
199257.0 mm (2.2 in)
199355.0 mm (2.2 in)
199468.9 mm (2.7 in)
199531.5 mm (1.2 in)
199634.7 mm (1.4 in)
1997117.4 mm (4.6 in)
199821.3 mm (0.8 in)
19990.0 mm (0.00 in)
200028.2 mm (1.1 in)
200147.8 mm (1.9 in)
200229.7 mm (1.2 in)
2003181.1 mm (7.1 in)
200440.4 mm (1.6 in)
200520.1 mm (0.8 in)
200652.3 mm (2.1 in)
200754.1 mm (2.1 in)
200852.1 mm (2.1 in)
200994.5 mm (3.7 in)
201014.5 mm (0.6 in)
20114.1 mm (0.16 in)
2012104.1 mm (4.1 in)
201347.5 mm (1.9 in)
201446.2 mm (1.8 in)
201524.4 mm (1.0 in)
2016110.0 mm (4.3 in)
201719.3 mm (0.8 in)
201873.7 mm (2.9 in)
201954.1 mm (2.1 in)
202020.1 mm (0.8 in)
202138.6 mm (1.5 in)
202228.7 mm (1.1 in)
202399.1 mm (3.9 in)
202414.5 mm (0.6 in)
2025n/a
202655.8 mm (2.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Ciudad Constitucion by year The wettest five days of the year at Ciudad Constitucion, 1957 to 2026. The record is 201.2 mm (7.9 in) in 2003, marked on the chart; the median year is 44.5 mm (1.8 in). 01002003001960198020002020Record: 201.2 mm (7.9 in) in 2003
The wettest five days of the year at Ciudad Constitucion, 1957 to 2026. The record is 201.2 mm (7.9 in) in 2003, marked on the chart; the median year is 44.5 mm (1.8 in).
Wettest five days (Rx5day) at Ciudad Constitucion by year
YearWettest five days (Rx5day)
195740.0 mm (1.6 in)
195844.0 mm (1.7 in)
195985.0 mm (3.3 in)
196067.0 mm (2.6 in)
196179.0 mm (3.1 in)
196268.0 mm (2.7 in)
19635.0 mm (0.20 in)
196440.0 mm (1.6 in)
196563.5 mm (2.5 in)
196632.5 mm (1.3 in)
1967102.5 mm (4.0 in)
196835.5 mm (1.4 in)
196944.0 mm (1.7 in)
197041.5 mm (1.6 in)
197168.0 mm (2.7 in)
197264.2 mm (2.5 in)
197331.9 mm (1.3 in)
197443.0 mm (1.7 in)
197544.5 mm (1.8 in)
197652.0 mm (2.0 in)
197749.9 mm (2.0 in)
197819.0 mm (0.7 in)
1979101.2 mm (4.0 in)
19803.0 mm (0.12 in)
198131.0 mm (1.2 in)
198234.0 mm (1.3 in)
1983147.5 mm (5.8 in)
198445.0 mm (1.8 in)
198511.3 mm (0.4 in)
198642.0 mm (1.7 in)
1987109.0 mm (4.3 in)
198814.6 mm (0.6 in)
198937.0 mm (1.5 in)
199083.0 mm (3.3 in)
199161.0 mm (2.4 in)
199290.0 mm (3.5 in)
199366.1 mm (2.6 in)
199472.3 mm (2.8 in)
199531.5 mm (1.2 in)
199643.7 mm (1.7 in)
1997132.6 mm (5.2 in)
199824.6 mm (1.0 in)
19990.0 mm (0.00 in)
200040.7 mm (1.6 in)
200157.2 mm (2.3 in)
200253.9 mm (2.1 in)
2003201.2 mm (7.9 in)
2004101.1 mm (4.0 in)
20055.3 mm (0.21 in)
200652.6 mm (2.1 in)
200754.1 mm (2.1 in)
200841.2 mm (1.6 in)
2009172.5 mm (6.8 in)
201014.5 mm (0.6 in)
20114.1 mm (0.16 in)
2012169.4 mm (6.7 in)
201358.7 mm (2.3 in)
201446.2 mm (1.8 in)
201515.2 mm (0.6 in)
2016110.0 mm (4.3 in)
201735.6 mm (1.4 in)
201819.1 mm (0.8 in)
201989.9 mm (3.5 in)
202020.1 mm (0.8 in)
202138.6 mm (1.5 in)
20220.0 mm (0.00 in)
2023119.4 mm (4.7 in)
20240.5 mm (0.02 in)
2025n/a
202684.3 mm (3.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Ciudad Constitucion by year The longest dry spell of the year at Ciudad Constitucion, 1957 to 2026. The record is 252 days in 1980, marked on the chart; the median year is 111 days. 01002003001960198020002020Record: 252 days in 1980
The longest dry spell of the year at Ciudad Constitucion, 1957 to 2026. The record is 252 days in 1980, marked on the chart; the median year is 111 days.
Longest dry spell (CDD) at Ciudad Constitucion by year
YearLongest dry spell (CDD)
1957148 days
195871 days
195982 days
1960140 days
1961190 days
1962168 days
1963151 days
1964111 days
1965118 days
1966181 days
1967183 days
1968118 days
1969144 days
1970107 days
1971212 days
1972171 days
1973160 days
1974236 days
1975209 days
1976191 days
1977205 days
1978146 days
1979176 days
1980252 days
198185 days
1982166 days
1983110 days
1984145 days
1985189 days
198685 days
1987141 days
1988221 days
1989145 days
1990181 days
1991216 days
1992138 days
1993176 days
1994215 days
1995153 days
1996186 days
1997121 days
199831 days
19995 days
200033 days
200140 days
200251 days
200315 days
200425 days
200519 days
200653 days
200744 days
200883 days
200959 days
201042 days
201128 days
201287 days
201380 days
201447 days
201532 days
201656 days
201753 days
201834 days
201961 days
202022 days
202119 days
202213 days
202313 days
202415 days
2025n/a
202612 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

34 years, 1958 to 1997

A day with at least 40.7 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 125.5 mm (4.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Ciudad Constitucion: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years40.7 mm (1.6 in)
5 years61.6 mm (2.4 in)
10 years76.2 mm (3.0 in)
25 years95.4 mm (3.8 in)
50 years110.2 mm (4.3 in)Longer than the 34 years of record
100 years125.5 mm (4.9 in)Longer than the 34 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, 34 years of values from 1958 to 1997.

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: 117.4 mm (4.6 in) in 1997; 110.0 mm (4.3 in) in 1983; 100.0 mm (3.9 in) in 1979.

Download the Data

  • Data for Ciudad Constitucion standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Ciudad Constitucion 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 (2026-10-14).