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Topo Chico Weather Records (MXN00019061)

Record envelope, standing records and threshold days for Topo Chico (MXN00019061), Mexico, with 59 years of record.

Key Facts for Topo Chico

  • Topo Chico (MXN00019061) is a weather station in Mexico at 25.72 latitude and -100.32 longitude, 550 m (1,804 ft) above sea level.
  • The station reports from 1947 to 2005, 59 years of record.
  • 1,464 records set at Topo Chico still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Topo Chico tied a daily record high maximum temperature of 35.0 C (95.0 F) on 13 December 2005.

About the Station

  • Location: Mexico, 25.72 latitude, -100.32 longitude.
  • Elevation: 550 m (1,804 ft).
  • Period of record: 1947 to 2005, 59 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 Topo Chico, with 2026 drawn through them The band shows the record high and record low for each calendar day at Topo Chico. 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 Topo Chico. 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 Topo Chico, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan36.7 C (98.1 F)-4.4 C (24.1 F)n/an/a
Feb40.0 C (104.0 F)-4.4 C (24.1 F)n/an/a
Mar42.8 C (109.0 F)0.0 C (32.0 F)n/an/a
Apr43.9 C (111.0 F)0.0 C (32.0 F)n/an/a
May45.6 C (114.1 F)0.0 C (32.0 F)n/an/a
Jun43.9 C (111.0 F)10.6 C (51.1 F)n/an/a
Jul43.3 C (109.9 F)10.6 C (51.1 F)n/an/a
Aug42.2 C (108.0 F)11.7 C (53.1 F)n/an/a
Sep40.0 C (104.0 F)6.7 C (44.1 F)n/an/a
Oct38.9 C (102.0 F)0.0 C (32.0 F)n/an/a
Nov40.0 C (104.0 F)0.0 C (32.0 F)n/an/a
Dec36.7 C (98.1 F)-6.1 C (21.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Topo Chico by the year they were set 1,464 records at Topo Chico still stand. 1959 holds the most, with 132. 0501001501958: 301959: 1321960: 431961: 1081962: 671963: 311964: 271965: 261966: 261967: 261968: 711969: 541970: 91971: 361972: 261973: 301974: 171975: 251976: 371977: 211978: 321979: 371980: 331981: 241982: 351983: 251984: 31985: 201986: 181987: 181988: 111989: 471990: 81991: 291992: 181993: 141994: 131995: 251996: 631997: 122001: 122002: 172003: 502004: 402005: 18195819631968197319781983198819932001
1,464 records at Topo Chico still stand. 1959 holds the most, with 132.
Standing records at Topo Chico by the year they were set
Year setStanding records
195830
1959132
196043
1961108
196267
196331
196427
196526
196626
196726
196871
196954
19709
197136
197226
197330
197417
197525
197637
197721
197832
197937
198033
198124
198235
198325
19843
198520
198618
198718
198811
198947
19908
199129
199218
199314
199413
199525
199663
199712
200112
200217
200350
200440
200518

All-Time Record Progression

2 new records
When Topo Chico set new all-time records 2 all-time records were set at Topo Chico between 4 September 1986 and 16 September 1988. Each dot is a new record. Record daily precipitation4 September 1986: Record daily precipitation 179.8 mm (7.1 in)16 September 1988: Record daily precipitation 259.8 mm (10.2 in)
2 all-time records were set at Topo Chico between 4 September 1986 and 16 September 1988. Each dot is a new record.
When Topo Chico set new all-time records
DateKindDetail
1986-09-04Record daily precipitationRecord daily precipitation 179.8 mm (7.1 in)
1988-09-16Record daily precipitationRecord daily precipitation 259.8 mm (10.2 in)

Wettest Day of Each Month

Sep: 259.8 mm (10.2 in)
Record daily precipitation for each month at Topo Chico The wettest day on record for each calendar month at Topo Chico. The most was 259.8 mm (10.2 in) on 16 September 1988. 0100200300 Jan: 67.3 mm (2.6 in), 6 January 2003 Jan Feb: 40.1 mm (1.6 in), 27 February 1949 Feb Mar: 27.9 mm (1.1 in), 24 March 1951 Mar Apr: 88.4 mm (3.5 in), 15 April 1981 Apr May: 67.8 mm (2.7 in), 15 May 1967 May Jun: 133.9 mm (5.3 in), 23 June 1973 Jun Jul: 100.1 mm (3.9 in), 2 July 1948 Jul Aug: 134.4 mm (5.3 in), 23 August 1996 Aug Sep: 259.8 mm (10.2 in), 16 September 1988 Sep Oct: 124.0 mm (4.9 in), 3 October 1977 Oct Nov: 53.8 mm (2.1 in), 16 November 1976 Nov Dec: 37.3 mm (1.5 in), 8 December 1982 Dec
The wettest day on record for each calendar month at Topo Chico. The most was 259.8 mm (10.2 in) on 16 September 1988.
Record daily precipitation for each month at Topo Chico
MonthRecord daily precipitation (mm)Date
Jan67.3 mm (2.6 in)6 January 2003
Feb40.1 mm (1.6 in)27 February 1949
Mar27.9 mm (1.1 in)24 March 1951
Apr88.4 mm (3.5 in)15 April 1981
May67.8 mm (2.7 in)15 May 1967
Jun133.9 mm (5.3 in)23 June 1973
Jul100.1 mm (3.9 in)2 July 1948
Aug134.4 mm (5.3 in)23 August 1996
Sep259.8 mm (10.2 in)16 September 1988
Oct124.0 mm (4.9 in)3 October 1977
Nov53.8 mm (2.1 in)16 November 1976
Dec37.3 mm (1.5 in)8 December 1982

Period of Record Coverage

1958 to 2005
Days with data per year at Topo Chico 45 years of record at Topo Chico, 1958 to 2005. 9 years have data for under 90 percent of days and are left out of rankings: 1958, 1969, 1970, 1974, 1975, 1984, 1995, 1997 and others. 1958: 182 of 365 days1959: 357 of 365 days1960: 355 of 366 days1961: 360 of 365 days1962: 360 of 365 days1963: 361 of 365 days1964: 334 of 366 days1965: 364 of 365 days1966: 364 of 365 days1967: 333 of 365 days1968: 363 of 366 days1969: 149 of 365 days1970: 133 of 365 days1971: 336 of 365 days1972: 362 of 366 days1973: 363 of 365 days1974: 301 of 365 days1975: 302 of 365 days1976: 355 of 366 days1977: 361 of 365 days1978: 360 of 365 days1979: 357 of 365 days1980: 356 of 366 days1981: 363 of 365 days1982: 330 of 365 days1983: 362 of 365 days1984: 121 of 366 days1985: 356 of 365 days1986: 354 of 365 days1987: 354 of 365 days1988: 342 of 366 days1989: 341 of 365 days1990: 345 of 365 days1991: 348 of 365 days1992: 330 of 366 days1993: 343 of 365 days1994: 330 of 365 days1995: 213 of 365 days1996: 358 of 366 days1997: 235 of 365 days2001: 201 of 365 days2002: 363 of 365 days2003: 363 of 365 days2004: 332 of 366 days2005: 360 of 365 days1960197019801990
45 years of record at Topo Chico, 1958 to 2005. 9 years have data for under 90 percent of days and are left out of rankings: 1958, 1969, 1970, 1974, 1975, 1984, 1995, 1997 and others.
Days with data per year at Topo Chico
YearDays with dataShare of yearComplete
195818250%No
195935798%Yes
196035597%Yes
196136099%Yes
196236099%Yes
196336199%Yes
196433491%Yes
1965364100%Yes
1966364100%Yes
196733391%Yes
196836399%Yes
196914941%No
197013336%No
197133692%Yes
197236299%Yes
197336399%Yes
197430182%No
197530283%No
197635597%Yes
197736199%Yes
197836099%Yes
197935798%Yes
198035697%Yes
198136399%Yes
198233090%Yes
198336299%Yes
198412133%No
198535698%Yes
198635497%Yes
198735497%Yes
198834293%Yes
198934193%Yes
199034595%Yes
199134895%Yes
199233090%Yes
199334394%Yes
199433090%Yes
199521358%No
199635898%Yes
199723564%No
200120155%No
200236399%Yes
200336399%Yes
200433291%Yes
200536099%Yes

Latest Records

20
Latest records at Topo Chico
DateStationRecordValueBeat old record byOld record stoodSignificance
13 December 2005Topo Chico, MXdaily high max (Tie)35.0 C (95.0 F)tie0 years1 of 100 (Routine)
3 December 2005Topo Chico, MXdaily high min (Tie)15.6 C (60.1 F)tie44 years4 of 100 (Routine)
2 December 2005Topo Chico, MXdaily high min16.7 C (62.1 F)1.7 C (3.1 F)46 years21 of 100 (Routine)
1 December 2005Topo Chico, MXdaily high min (Tie)17.8 C (64.0 F)tie38 years3 of 100 (Routine)
30 November 2005Topo Chico, MXdaily high min17.8 C (64.0 F)1.7 C (3.1 F)24 years14 of 100 (Routine)
18 November 2005Topo Chico, MXdaily rain30.0 mm (1.2 in)25.7 mm (1.0 in)16 years47 of 100 (Notable)
2 November 2005Topo Chico, MXdaily low min6.7 C (44.1 F)2.2 C (4.0 F)28 years16 of 100 (Routine)
28 October 2005Topo Chico, MXdaily rain15.7 mm (0.6 in)9.9 mm (0.39 in)56 years20 of 100 (Routine)
26 October 2005Topo Chico, MXdaily low min8.9 C (48.0 F)1.1 C (2.0 F)23 years12 of 100 (Routine)
25 October 2005Topo Chico, MXdaily low min6.7 C (44.1 F)2.2 C (4.0 F)24 years16 of 100 (Routine)
24 October 2005Topo Chico, MXdaily low max (Tie)17.8 C (64.0 F)tie24 years2 of 100 (Routine)
28 September 2005Topo Chico, MXdaily high max (Tie)35.6 C (96.1 F)tie40 years4 of 100 (Routine)
24 September 2005Topo Chico, MXdaily high max36.7 C (98.1 F)1.1 C (2.0 F)39 years17 of 100 (Routine)
21 August 2005Topo Chico, MXdaily low max (Tie)23.9 C (75.0 F)tie28 years3 of 100 (Routine)
26 July 2005Topo Chico, MXdaily low max25.6 C (78.1 F)2.2 C (4.0 F)16 years14 of 100 (Routine)
25 July 2005Topo Chico, MXdaily rain19.8 mm (0.8 in)8.4 mm (0.33 in)20 years16 of 100 (Routine)
25 July 2005Topo Chico, MXdaily low max23.9 C (75.0 F)1.7 C (3.1 F)16 years13 of 100 (Routine)
24 July 2005Topo Chico, MXdaily low max23.9 C (75.0 F)6.1 C (11.0 F)47 years36 of 100 (Notable)
23 July 2005Topo Chico, MXdaily low max23.9 C (75.0 F)2.8 C (5.0 F)32 years21 of 100 (Routine)
22 July 2005Topo Chico, MXdaily low max21.7 C (71.1 F)3.3 C (5.9 F)32 years22 of 100 (Routine)

Climate Trend

28 complete years, 1960 to 2005
Annual mean temperature at Topo Chico as warming stripes, 1960 to 2005 One stripe for each of 28 complete years at Topo Chico, 1960 to 2005. Blue stripes are years cooler than the station's own mean of 22.3 C (72.2 F); red stripes are warmer. The coolest year was 2003, at 19.4 C (66.9 F), and the warmest was 1968, at 24.5 C (76.1 F). The strongest colour marks a difference of 3.0 C (5.4 F). 1960: 21.3 C, -1.1 C from the station mean1961: 20.7 C, -1.6 C from the station mean1962: 22.9 C, +0.6 C from the station mean1963: 22.0 C, -0.3 C from the station mean1965: 23.5 C, +1.2 C from the station mean1966: 22.7 C, +0.4 C from the station mean1968: 24.5 C, +2.2 C from the station mean1972: 22.0 C, -0.3 C from the station mean1973: 21.4 C, -0.9 C from the station mean1976: 20.9 C, -1.4 C from the station mean1977: 22.6 C, +0.3 C from the station mean1978: 22.3 C, 0.0 C from the station mean1979: 22.7 C, +0.4 C from the station mean1980: 23.2 C, +0.8 C from the station mean1981: 22.5 C, +0.1 C from the station mean1983: 22.5 C, +0.2 C from the station mean1985: 22.7 C, +0.3 C from the station mean1986: 23.0 C, +0.6 C from the station mean1987: 21.9 C, -0.4 C from the station mean1988: 22.5 C, +0.2 C from the station mean1989: 23.1 C, +0.8 C from the station mean1990: 23.4 C, +1.0 C from the station mean1991: 23.4 C, +1.0 C from the station mean1993: 22.6 C, +0.2 C from the station mean1996: 24.0 C, +1.7 C from the station mean2002: 20.0 C, -2.3 C from the station mean2003: 19.4 C, -3.0 C from the station mean2005: 21.6 C, -0.7 C from the station mean1960196519701975198019851990199520002005
One stripe for each of 28 complete years at Topo Chico, 1960 to 2005. Blue stripes are years cooler than the station's own mean of 22.3 C (72.2 F); red stripes are warmer. The coolest year was 2003, at 19.4 C (66.9 F), and the warmest was 1968, at 24.5 C (76.1 F). The strongest colour marks a difference of 3.0 C (5.4 F).
Annual mean temperature at Topo Chico as warming stripes, 1960 to 2005
YearAnnual mean temperatureDifference from the station mean
196021.3 C-1.05 C
196120.7 C-1.61 C
196222.9 C+0.57 C
196322.0 C-0.33 C
196523.5 C+1.19 C
196622.7 C+0.38 C
196824.5 C+2.18 C
197222.0 C-0.29 C
197321.4 C-0.91 C
197620.9 C-1.44 C
197722.6 C+0.31 C
197822.3 C-0.04 C
197922.7 C+0.41 C
198023.2 C+0.85 C
198122.5 C+0.13 C
198322.5 C+0.18 C
198522.7 C+0.33 C
198623.0 C+0.62 C
198721.9 C-0.40 C
198822.5 C+0.19 C
198923.1 C+0.80 C
199023.4 C+1.04 C
199123.4 C+1.02 C
199322.6 C+0.24 C
199624.0 C+1.68 C
200220.0 C-2.31 C
200319.4 C-2.95 C
200521.6 C-0.70 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

1947 to 2005
Yearly extremes at Topo Chico: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.6 C (114.1 F)198340.6 C (105.1 F)45
Coldest night (TNn)-6.1 C (21.0 F)19890.0 C (32.0 F)45
Wettest day (Rx1day)259.8 mm (10.2 in)198865.3 mm (2.6 in)56
Wettest five days (Rx5day)327.9 mm (12.9 in)1973102.5 mm (4.0 in)56
Longest dry spell (CDD)177 days200257 days56

Hottest day (TXx)

Hottest day (TXx) at Topo Chico by year The hottest day of the year at Topo Chico, 1947 to 2005. The record is 45.6 C (114.1 F) in 1983, marked on the chart; the median year is 40.6 C (105.1 F). 3537.54042.54547.5195019601970198019902000Record: 45.6 C (114.1 F) in 1983
The hottest day of the year at Topo Chico, 1947 to 2005. The record is 45.6 C (114.1 F) in 1983, marked on the chart; the median year is 40.6 C (105.1 F).
Hottest day (TXx) at Topo Chico by year
YearHottest day (TXx)
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
195837.8 C (100.0 F)
195935.6 C (96.1 F)
196038.9 C (102.0 F)
196138.9 C (102.0 F)
196240.6 C (105.1 F)
196342.8 C (109.0 F)
196440.0 C (104.0 F)
196540.0 C (104.0 F)
196638.9 C (102.0 F)
196738.9 C (102.0 F)
196838.9 C (102.0 F)
196937.8 C (100.0 F)
197038.9 C (102.0 F)
197141.7 C (107.1 F)
197240.6 C (105.1 F)
197343.9 C (111.0 F)
197443.9 C (111.0 F)
197541.7 C (107.1 F)
197640.0 C (104.0 F)
197741.7 C (107.1 F)
197842.8 C (109.0 F)
197943.9 C (111.0 F)
198042.8 C (109.0 F)
198140.6 C (105.1 F)
198243.3 C (109.9 F)
198345.6 C (114.1 F)
198438.9 C (102.0 F)
198540.0 C (104.0 F)
198641.7 C (107.1 F)
198740.0 C (104.0 F)
198842.8 C (109.0 F)
198942.8 C (109.0 F)
199040.6 C (105.1 F)
199142.8 C (109.0 F)
199243.9 C (111.0 F)
199341.7 C (107.1 F)
199441.7 C (107.1 F)
199545.6 C (114.1 F)
199642.8 C (109.0 F)
199741.7 C (107.1 F)
200140.0 C (104.0 F)
200238.9 C (102.0 F)
200341.7 C (107.1 F)
200440.0 C (104.0 F)
200540.6 C (105.1 F)

Coldest night (TNn)

Coldest night (TNn) at Topo Chico by year The coldest night of the year at Topo Chico, 1947 to 2005. The record is -6.1 C (21.0 F) in 1989, marked on the chart; the median year is 0.0 C (32.0 F). -7.5-5-2.502.55195019601970198019902000Record: -6.1 C (21.0 F) in 1989
The coldest night of the year at Topo Chico, 1947 to 2005. The record is -6.1 C (21.0 F) in 1989, marked on the chart; the median year is 0.0 C (32.0 F).
Coldest night (TNn) at Topo Chico by year
YearColdest night (TNn)
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
19580.0 C (32.0 F)
19591.7 C (35.1 F)
19600.0 C (32.0 F)
19611.7 C (35.1 F)
1962-1.1 C (30.0 F)
19630.0 C (32.0 F)
19640.0 C (32.0 F)
19651.7 C (35.1 F)
19661.7 C (35.1 F)
1967-3.3 C (26.1 F)
19682.8 C (37.0 F)
19692.8 C (37.0 F)
19701.7 C (35.1 F)
1971-1.1 C (30.0 F)
19720.6 C (33.1 F)
1973-2.2 C (28.0 F)
19741.7 C (35.1 F)
1975-4.4 C (24.1 F)
1976-2.2 C (28.0 F)
19770.6 C (33.1 F)
19780.0 C (32.0 F)
1979-4.4 C (24.1 F)
19800.6 C (33.1 F)
1981-1.1 C (30.0 F)
19820.0 C (32.0 F)
19830.0 C (32.0 F)
19840.0 C (32.0 F)
1985-4.4 C (24.1 F)
19862.8 C (37.0 F)
19870.6 C (33.1 F)
19880.6 C (33.1 F)
1989-6.1 C (21.0 F)
1990-1.1 C (30.0 F)
19910.0 C (32.0 F)
19920.6 C (33.1 F)
19930.0 C (32.0 F)
19940.6 C (33.1 F)
19950.6 C (33.1 F)
1996-2.2 C (28.0 F)
1997-2.2 C (28.0 F)
20011.7 C (35.1 F)
20020.0 C (32.0 F)
2003-1.1 C (30.0 F)
20040.0 C (32.0 F)
20052.8 C (37.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Topo Chico by year The wettest day of the year at Topo Chico, 1947 to 2005. The record is 259.8 mm (10.2 in) in 1988, marked on the chart; the median year is 65.3 mm (2.6 in). 0100200300195019601970198019902000Record: 259.8 mm (10.2 in) in 1988
The wettest day of the year at Topo Chico, 1947 to 2005. The record is 259.8 mm (10.2 in) in 1988, marked on the chart; the median year is 65.3 mm (2.6 in).
Wettest day (Rx1day) at Topo Chico by year
YearWettest day (Rx1day)
194780.0 mm (3.1 in)
1948108.0 mm (4.3 in)
194965.8 mm (2.6 in)
195039.9 mm (1.6 in)
195183.6 mm (3.3 in)
195220.3 mm (0.8 in)
195374.9 mm (2.9 in)
195439.9 mm (1.6 in)
195564.8 mm (2.6 in)
195632.8 mm (1.3 in)
195721.8 mm (0.9 in)
195859.9 mm (2.4 in)
195919.8 mm (0.8 in)
196049.8 mm (2.0 in)
196190.9 mm (3.6 in)
1962106.9 mm (4.2 in)
196359.9 mm (2.4 in)
196495.0 mm (3.7 in)
196547.8 mm (1.9 in)
196647.0 mm (1.9 in)
1967115.8 mm (4.6 in)
196837.8 mm (1.5 in)
196919.8 mm (0.8 in)
197060.5 mm (2.4 in)
197193.0 mm (3.7 in)
197267.3 mm (2.6 in)
1973133.9 mm (5.3 in)
197483.8 mm (3.3 in)
197541.4 mm (1.6 in)
197653.8 mm (2.1 in)
1977124.0 mm (4.9 in)
1978110.0 mm (4.3 in)
197947.8 mm (1.9 in)
198083.3 mm (3.3 in)
198188.4 mm (3.5 in)
198241.4 mm (1.6 in)
198385.9 mm (3.4 in)
198439.9 mm (1.6 in)
198556.4 mm (2.2 in)
1986179.8 mm (7.1 in)
198733.8 mm (1.3 in)
1988259.8 mm (10.2 in)
198988.4 mm (3.5 in)
199075.4 mm (3.0 in)
199168.8 mm (2.7 in)
199259.9 mm (2.4 in)
199367.8 mm (2.7 in)
1994171.5 mm (6.8 in)
199530.0 mm (1.2 in)
1996134.4 mm (5.3 in)
199736.8 mm (1.4 in)
200157.9 mm (2.3 in)
200274.4 mm (2.9 in)
2003113.3 mm (4.5 in)
200419.8 mm (0.8 in)
200530.0 mm (1.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Topo Chico by year The wettest five days of the year at Topo Chico, 1947 to 2005. The record is 327.9 mm (12.9 in) in 1973, marked on the chart; the median year is 102.5 mm (4.0 in). 0100200300400195019601970198019902000Record: 327.9 mm (12.9 in) in 1973
The wettest five days of the year at Topo Chico, 1947 to 2005. The record is 327.9 mm (12.9 in) in 1973, marked on the chart; the median year is 102.5 mm (4.0 in).
Wettest five days (Rx5day) at Topo Chico by year
YearWettest five days (Rx5day)
1947257.6 mm (10.1 in)
1948170.3 mm (6.7 in)
1949101.3 mm (4.0 in)
195071.6 mm (2.8 in)
1951186.2 mm (7.3 in)
195240.7 mm (1.6 in)
1953181.3 mm (7.1 in)
195439.9 mm (1.6 in)
195569.6 mm (2.7 in)
195645.7 mm (1.8 in)
195752.6 mm (2.1 in)
1958271.6 mm (10.7 in)
195919.8 mm (0.8 in)
196079.2 mm (3.1 in)
1961171.6 mm (6.8 in)
1962114.8 mm (4.5 in)
1963103.1 mm (4.1 in)
196495.0 mm (3.7 in)
196565.5 mm (2.6 in)
1966101.9 mm (4.0 in)
1967215.3 mm (8.5 in)
196861.0 mm (2.4 in)
196924.7 mm (1.0 in)
197074.2 mm (2.9 in)
1971157.3 mm (6.2 in)
1972120.9 mm (4.8 in)
1973327.9 mm (12.9 in)
1974117.3 mm (4.6 in)
1975132.2 mm (5.2 in)
197688.5 mm (3.5 in)
1977139.9 mm (5.5 in)
1978225.3 mm (8.9 in)
1979113.4 mm (4.5 in)
1980176.1 mm (6.9 in)
1981139.0 mm (5.5 in)
198257.0 mm (2.2 in)
1983123.7 mm (4.9 in)
198443.2 mm (1.7 in)
198579.5 mm (3.1 in)
1986310.6 mm (12.2 in)
198782.8 mm (3.3 in)
1988259.8 mm (10.2 in)
198998.3 mm (3.9 in)
199080.2 mm (3.2 in)
1991100.7 mm (4.0 in)
199275.4 mm (3.0 in)
1993116.2 mm (4.6 in)
1994179.9 mm (7.1 in)
199533.8 mm (1.3 in)
1996290.4 mm (11.4 in)
199753.6 mm (2.1 in)
2001117.3 mm (4.6 in)
2002109.2 mm (4.3 in)
2003178.1 mm (7.0 in)
200455.6 mm (2.2 in)
200558.0 mm (2.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Topo Chico by year The longest dry spell of the year at Topo Chico, 1947 to 2005. The record is 177 days in 2002, marked on the chart; the median year is 57 days. 050100150200195019601970198019902000Record: 177 days in 2002
The longest dry spell of the year at Topo Chico, 1947 to 2005. The record is 177 days in 2002, marked on the chart; the median year is 57 days.
Longest dry spell (CDD) at Topo Chico by year
YearLongest dry spell (CDD)
194765 days
194861 days
194969 days
195049 days
195176 days
195254 days
1953119 days
195464 days
195569 days
1956100 days
195766 days
1958102 days
1959100 days
196042 days
196177 days
196271 days
196385 days
196472 days
196560 days
196681 days
196761 days
196853 days
196975 days
197055 days
197171 days
197238 days
197343 days
197470 days
197531 days
197628 days
197743 days
197845 days
197965 days
198050 days
198155 days
198249 days
198359 days
198432 days
198531 days
1986103 days
198731 days
198864 days
198943 days
199045 days
199139 days
199242 days
199356 days
199443 days
199528 days
199689 days
199741 days
200141 days
2002177 days
200357 days
200439 days
200548 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

46 years, 1948 to 2005

A day with at least 67.2 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 244.3 mm (9.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Topo Chico: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years67.2 mm (2.6 in)
5 years107.0 mm (4.2 in)
10 years136.2 mm (5.4 in)
25 years176.6 mm (7.0 in)
50 years209.3 mm (8.2 in)Longer than the 46 years of record
100 years244.3 mm (9.6 in)Longer than the 46 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, 46 years of values from 1948 to 2005.

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: 259.8 mm (10.2 in) in 1988; 179.8 mm (7.1 in) in 1986; 171.5 mm (6.8 in) in 1994.

Download the Data

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