Daily records
Page built 2026-10-15
Data as of 2025-12-31
Search
Built 2026-10-15 (15 October 2026)

Boca del Salado Weather Records (MXN00003003)

Record envelope, standing records and threshold days for Boca del Salado (MXN00003003), Mexico, with 56 years of record.

Key Facts for Boca del Salado

  • Boca del Salado (MXN00003003) is a weather station in Mexico at 23.28 latitude and -109.43 longitude, 20 m (65 ft) above sea level.
  • The station reports from 1957 to 2012, 56 years of record.
  • 1,464 records set at Boca del Salado still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Boca del Salado set a daily record precipitation of 15.0 mm (0.6 in) on 29 December 2012.

About the Station

  • Location: Mexico, 23.28 latitude, -109.43 longitude.
  • Elevation: 20 m (65 ft).
  • Period of record: 1957 to 2012, 56 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 Boca del Salado, with 2026 drawn through them The band shows the record high and record low for each calendar day at Boca del Salado. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 01020304050 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Boca del Salado. 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 Boca del Salado, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan35.0 C (95.0 F)3.9 C (39.0 F)n/an/a
Feb35.0 C (95.0 F)1.7 C (35.1 F)n/an/a
Mar36.7 C (98.1 F)5.0 C (41.0 F)n/an/a
Apr38.9 C (102.0 F)7.8 C (46.0 F)n/an/a
May40.6 C (105.1 F)10.0 C (50.0 F)n/an/a
Jun40.6 C (105.1 F)10.6 C (51.1 F)n/an/a
Jul41.7 C (107.1 F)11.7 C (53.1 F)n/an/a
Aug40.6 C (105.1 F)11.7 C (53.1 F)n/an/a
Sep40.0 C (104.0 F)12.8 C (55.0 F)n/an/a
Oct38.9 C (102.0 F)5.6 C (42.1 F)n/an/a
Nov38.9 C (102.0 F)7.8 C (46.0 F)n/an/a
Dec33.9 C (93.0 F)3.9 C (39.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Boca del Salado by the year they were set 1,464 records at Boca del Salado still stand. 1979 holds the most, with 103. 0501001501957: 351958: 851959: 361960: 181961: 151962: 181963: 161964: 161965: 61966: 71967: 111968: 101969: 111970: 191971: 221972: 241973: 451974: 81975: 281976: 111977: 181978: 211979: 1031980: 281981: 151982: 101983: 131984: 51985: 141986: 231987: 241988: 391989: 161990: 521991: 491992: 511993: 181994: 301995: 251996: 611997: 51998: 361999: 12001: 342002: 12003: 52004: 452005: 122006: 252007: 232008: 342009: 82010: 542011: 822012: 431957196319691975198119871993199920062012
1,464 records at Boca del Salado still stand. 1979 holds the most, with 103.
Standing records at Boca del Salado by the year they were set
Year setStanding records
195735
195885
195936
196018
196115
196218
196316
196416
19656
19667
196711
196810
196911
197019
197122
197224
197345
19748
197528
197611
197718
197821
1979103
198028
198115
198210
198313
19845
198514
198623
198724
198839
198916
199052
199149
199251
199318
199430
199525
199661
19975
199836
19991
200134
20021
20035
200445
200512
200625
200723
200834
20098
201054
201182
201243

All-Time Record Progression

4 new records
When Boca del Salado set new all-time records 4 all-time records were set at Boca del Salado between 1 September 1998 and 25 December 2006. Each dot is a new record. Record daily precipitationRecord high maximum temperatureRecord low maximum temperature1 September 1998: Record daily precipitation 300.0 mm (11.8 in)9 July 2001: Record high maximum temperature 41.7 C (107.1 F)1 September 2006: Record daily precipitation 319.8 mm (12.6 in)25 December 2006: Record low maximum temperature 15.6 C (60.1 F)20002005
4 all-time records were set at Boca del Salado between 1 September 1998 and 25 December 2006. Each dot is a new record.
When Boca del Salado set new all-time records
DateKindDetail
1998-09-01Record daily precipitationRecord daily precipitation 300.0 mm (11.8 in)
2001-07-09Record high maximum temperatureRecord high maximum temperature 41.7 C (107.1 F)
2006-09-01Record daily precipitationRecord daily precipitation 319.8 mm (12.6 in)
2006-12-25Record low maximum temperatureRecord low maximum temperature 15.6 C (60.1 F)

Wettest Day of Each Month

Sep: 319.8 mm (12.6 in)
Record daily precipitation for each month at Boca del Salado The wettest day on record for each calendar month at Boca del Salado. The most was 319.8 mm (12.6 in) on 1 September 2006. 0100200300400 Jan: 99.8 mm (3.9 in), 13 January 2004 Jan Feb: 39.9 mm (1.6 in), 11 February 2005 Feb Mar: 19.8 mm (0.8 in), 2 March 2001 Mar Apr: 8.9 mm (0.35 in), 27 April 1986 Apr May: 40.9 mm (1.6 in), 29 May 1972 May Jun: 15.0 mm (0.6 in), 7 June 1964 Jun Jul: 66.8 mm (2.6 in), 25 July 2006 Jul Aug: 140.0 mm (5.5 in), 27 August 2003 Aug Sep: 319.8 mm (12.6 in), 1 September 2006 Sep Oct: 143.3 mm (5.6 in), 13 October 1964 Oct Nov: 291.8 mm (11.5 in), 6 November 1974 Nov Dec: 160.3 mm (6.3 in), 8 December 1959 Dec
The wettest day on record for each calendar month at Boca del Salado. The most was 319.8 mm (12.6 in) on 1 September 2006.
Record daily precipitation for each month at Boca del Salado
MonthRecord daily precipitation (mm)Date
Jan99.8 mm (3.9 in)13 January 2004
Feb39.9 mm (1.6 in)11 February 2005
Mar19.8 mm (0.8 in)2 March 2001
Apr8.9 mm (0.35 in)27 April 1986
May40.9 mm (1.6 in)29 May 1972
Jun15.0 mm (0.6 in)7 June 1964
Jul66.8 mm (2.6 in)25 July 2006
Aug140.0 mm (5.5 in)27 August 2003
Sep319.8 mm (12.6 in)1 September 2006
Oct143.3 mm (5.6 in)13 October 1964
Nov291.8 mm (11.5 in)6 November 1974
Dec160.3 mm (6.3 in)8 December 1959

Period of Record Coverage

1957 to 2012
Days with data per year at Boca del Salado 56 years of record at Boca del Salado, 1957 to 2012. 12 years have data for under 90 percent of days and are left out of rankings: 1957, 1968, 1969, 1980, 1989, 1990, 1991, 1996 and others. 1957: 183 of 365 days1958: 364 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 335 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 306 of 366 days1969: 206 of 365 days1970: 334 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 215 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: 335 of 366 days1989: 274 of 365 days1990: 273 of 365 days1991: 243 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 305 of 366 days1997: 150 of 365 days1998: 365 of 365 days1999: 253 of 365 days2000: 176 of 366 days2001: 323 of 365 days2002: 358 of 365 days2003: 361 of 365 days2004: 366 of 366 days2005: 362 of 365 days2006: 335 of 365 days2007: 347 of 365 days2008: 334 of 366 days2009: 353 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days196019701980199020002010
56 years of record at Boca del Salado, 1957 to 2012. 12 years have data for under 90 percent of days and are left out of rankings: 1957, 1968, 1969, 1980, 1989, 1990, 1991, 1996 and others.
Days with data per year at Boca del Salado
YearDays with dataShare of yearComplete
195718350%No
1958364100%Yes
1959365100%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
196333592%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
196830684%No
196920656%No
197033492%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
198021559%No
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
198833592%Yes
198927475%No
199027375%No
199124367%No
1992366100%Yes
1993365100%Yes
1994365100%Yes
1995365100%Yes
199630583%No
199715041%No
1998365100%Yes
199925369%No
200017648%No
200132388%No
200235898%Yes
200336199%Yes
2004366100%Yes
200536299%Yes
200633592%Yes
200734795%Yes
200833491%Yes
200935397%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes

Latest Records

20
Latest records at Boca del Salado
DateStationRecordValueBeat old record byOld record stoodSignificance
29 December 2012Boca del Salado, MXdaily rain15.0 mm (0.6 in)11.2 mm (0.4 in)36 years19 of 100 (Routine)
22 December 2012Boca del Salado, MXdaily low min (Tie)5.6 C (42.1 F)tie6 years1 of 100 (Routine)
14 December 2012Boca del Salado, MXdaily low min (Tie)7.8 C (46.0 F)tie33 years3 of 100 (Routine)
13 December 2012Boca del Salado, MXdaily rain25.9 mm (1.0 in)14.0 mm (0.6 in)47 years24 of 100 (Routine)
13 December 2012Boca del Salado, MXdaily low min (Tie)7.8 C (46.0 F)tie6 years1 of 100 (Routine)
12 December 2012Boca del Salado, MXdaily low min (Tie)6.7 C (44.1 F)tie6 years1 of 100 (Routine)
11 December 2012Boca del Salado, MXdaily low min7.8 C (46.0 F)1.1 C (2.0 F)6 years9 of 100 (Routine)
10 December 2012Boca del Salado, MXdaily low min (Tie)8.9 C (48.0 F)tie41 years4 of 100 (Routine)
3 December 2012Boca del Salado, MXdaily low min7.8 C (46.0 F)2.2 C (4.0 F)33 years21 of 100 (Routine)
2 December 2012Boca del Salado, MXdaily low min (Tie)8.9 C (48.0 F)tie33 years3 of 100 (Routine)
30 November 2012Boca del Salado, MXdaily low max22.8 C (73.0 F)1.1 C (2.0 F)33 years18 of 100 (Routine)
29 November 2012Boca del Salado, MXdaily low max (Tie)22.8 C (73.0 F)tie51 years5 of 100 (Routine)
28 November 2012Boca del Salado, MXdaily low max (Tie)22.8 C (73.0 F)tie39 years4 of 100 (Routine)
27 November 2012Boca del Salado, MXdaily low max (Tie)25.0 C (77.0 F)tie51 years5 of 100 (Routine)
26 November 2012Boca del Salado, MXdaily low max (Tie)25.0 C (77.0 F)tie39 years4 of 100 (Routine)
21 November 2012Boca del Salado, MXdaily low max (Tie)23.9 C (75.0 F)tie38 years4 of 100 (Routine)
20 November 2012Boca del Salado, MXdaily low max (Tie)25.0 C (77.0 F)tie51 years5 of 100 (Routine)
16 November 2012Boca del Salado, MXdaily low max (Tie)22.8 C (73.0 F)tie33 years3 of 100 (Routine)
15 November 2012Boca del Salado, MXdaily low max21.7 C (71.1 F)3.3 C (5.9 F)35 years28 of 100 (Routine)
11 November 2012Boca del Salado, MXdaily low max (Tie)22.8 C (73.0 F)tie54 years5 of 100 (Routine)

Climate Trend

37 complete years, 1958 to 2012
Annual mean temperature at Boca del Salado as warming stripes, 1958 to 2012 One stripe for each of 37 complete years at Boca del Salado, 1958 to 2012. Blue stripes are years cooler than the station's own mean of 23.4 C (74.1 F); red stripes are warmer. The coolest year was 1979, at 20.3 C (68.5 F), and the warmest was 2011, at 26.3 C (79.3 F). The strongest colour marks a difference of 3.2 C (5.8 F). 1958: 24.9 C, +1.5 C from the station mean1959: 25.3 C, +2.0 C from the station mean1960: 23.7 C, +0.3 C from the station mean1961: 23.6 C, +0.2 C from the station mean1962: 23.3 C, -0.1 C from the station mean1964: 22.9 C, -0.5 C from the station mean1965: 23.1 C, -0.2 C from the station mean1966: 23.3 C, 0.0 C from the station mean1967: 22.8 C, -0.5 C from the station mean1971: 22.3 C, -1.1 C from the station mean1972: 23.4 C, 0.0 C from the station mean1973: 22.4 C, -1.0 C from the station mean1974: 22.1 C, -1.3 C from the station mean1975: 21.3 C, -2.1 C from the station mean1976: 21.9 C, -1.4 C from the station mean1977: 21.9 C, -1.4 C from the station mean1978: 21.9 C, -1.5 C from the station mean1979: 20.3 C, -3.1 C from the station mean1981: 24.2 C, +0.8 C from the station mean1982: 24.3 C, +0.9 C from the station mean1983: 25.0 C, +1.6 C from the station mean1984: 24.1 C, +0.7 C from the station mean1985: 24.0 C, +0.6 C from the station mean1986: 24.7 C, +1.3 C from the station mean1987: 24.7 C, +1.3 C from the station mean1992: 22.5 C, -0.9 C from the station mean1993: 24.0 C, +0.6 C from the station mean1994: 22.6 C, -0.8 C from the station mean1995: 24.8 C, +1.5 C from the station mean1998: 23.7 C, +0.3 C from the station mean2002: 22.8 C, -0.6 C from the station mean2003: 23.2 C, -0.2 C from the station mean2004: 23.9 C, +0.5 C from the station mean2005: 22.0 C, -1.4 C from the station mean2010: 23.6 C, +0.2 C from the station mean2011: 26.3 C, +2.9 C from the station mean2012: 24.4 C, +1.0 C from the station mean19581965197019751980198519901995200020052010
One stripe for each of 37 complete years at Boca del Salado, 1958 to 2012. Blue stripes are years cooler than the station's own mean of 23.4 C (74.1 F); red stripes are warmer. The coolest year was 1979, at 20.3 C (68.5 F), and the warmest was 2011, at 26.3 C (79.3 F). The strongest colour marks a difference of 3.2 C (5.8 F).
Annual mean temperature at Boca del Salado as warming stripes, 1958 to 2012
YearAnnual mean temperatureDifference from the station mean
195824.9 C+1.52 C
195925.3 C+1.96 C
196023.7 C+0.32 C
196123.6 C+0.22 C
196223.3 C-0.06 C
196422.9 C-0.53 C
196523.1 C-0.24 C
196623.3 C-0.04 C
196722.8 C-0.55 C
197122.3 C-1.13 C
197223.4 C-0.02 C
197322.4 C-1.01 C
197422.1 C-1.30 C
197521.3 C-2.10 C
197621.9 C-1.45 C
197721.9 C-1.45 C
197821.9 C-1.53 C
197920.3 C-3.13 C
198124.2 C+0.82 C
198224.3 C+0.93 C
198325.0 C+1.61 C
198424.1 C+0.69 C
198524.0 C+0.62 C
198624.7 C+1.34 C
198724.7 C+1.33 C
199222.5 C-0.91 C
199324.0 C+0.63 C
199422.6 C-0.81 C
199524.8 C+1.45 C
199823.7 C+0.28 C
200222.8 C-0.60 C
200323.2 C-0.17 C
200423.9 C+0.50 C
200522.0 C-1.36 C
201023.6 C+0.20 C
201126.3 C+2.91 C
201224.4 C+1.00 C

The fitted trend in annual mean temperature here over 1958 to 2012 is 0.1 C (-0.1 to 0.4) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.2 to 0.7) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Boca del Salado
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.1 C (-0.1 to 0.4) per decade0.2 F (-0.2 to 0.7) per decade1958 to 201237Not clearly different from zero
Mean daily maximum0.2 C (-0.2 to 0.5) per decade0.3 F (-0.3 to 0.9) per decade1958 to 201237Not clearly different from zero
Mean daily minimum0.1 C (-0.2 to 0.4) per decade0.2 F (-0.3 to 0.7) per decade1958 to 201237Not clearly different from zero

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 2012
Yearly extremes at Boca del Salado: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.7 C (107.1 F)200138.9 C (102.0 F)56
Coldest night (TNn)1.7 C (35.1 F)19657.8 C (46.0 F)56
Wettest day (Rx1day)319.8 mm (12.6 in)200664.7 mm (2.5 in)56
Wettest five days (Rx5day)434.3 mm (17.1 in)197493.7 mm (3.7 in)56
Longest dry spell (CDD)231 days1976171 days56

Hottest day (TXx)

Hottest day (TXx) at Boca del Salado by year The hottest day of the year at Boca del Salado, 1957 to 2012. The record is 41.7 C (107.1 F) in 2001, marked on the chart; the median year is 38.9 C (102.0 F). 30354045196019701980199020002010Record: 41.7 C (107.1 F) in 2001
The hottest day of the year at Boca del Salado, 1957 to 2012. The record is 41.7 C (107.1 F) in 2001, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Boca del Salado by year
YearHottest day (TXx)
195738.3 C (100.9 F)
195836.7 C (98.1 F)
195938.9 C (102.0 F)
196036.7 C (98.1 F)
196138.9 C (102.0 F)
196237.8 C (100.0 F)
196340.6 C (105.1 F)
196438.9 C (102.0 F)
196539.4 C (102.9 F)
196637.8 C (100.0 F)
196736.7 C (98.1 F)
196840.0 C (104.0 F)
196938.9 C (102.0 F)
197038.9 C (102.0 F)
197137.8 C (100.0 F)
197238.9 C (102.0 F)
197338.9 C (102.0 F)
197436.7 C (98.1 F)
197540.6 C (105.1 F)
197637.8 C (100.0 F)
197735.6 C (96.1 F)
197835.6 C (96.1 F)
197935.6 C (96.1 F)
198040.0 C (104.0 F)
198137.8 C (100.0 F)
198237.8 C (100.0 F)
198336.7 C (98.1 F)
198435.6 C (96.1 F)
198538.9 C (102.0 F)
198638.9 C (102.0 F)
198740.0 C (104.0 F)
198840.0 C (104.0 F)
198937.8 C (100.0 F)
199040.6 C (105.1 F)
199138.9 C (102.0 F)
199238.9 C (102.0 F)
199338.9 C (102.0 F)
199436.7 C (98.1 F)
199540.6 C (105.1 F)
199635.6 C (96.1 F)
199730.6 C (87.1 F)
199840.6 C (105.1 F)
199936.7 C (98.1 F)
200033.9 C (93.0 F)
200141.7 C (107.1 F)
200235.6 C (96.1 F)
200337.8 C (100.0 F)
200438.9 C (102.0 F)
200535.0 C (95.0 F)
200638.9 C (102.0 F)
200738.9 C (102.0 F)
200838.9 C (102.0 F)
200938.9 C (102.0 F)
201040.0 C (104.0 F)
201138.9 C (102.0 F)
201238.9 C (102.0 F)

Coldest night (TNn)

Coldest night (TNn) at Boca del Salado by year The coldest night of the year at Boca del Salado, 1957 to 2012. The record is 1.7 C (35.1 F) in 1965, marked on the chart; the median year is 7.8 C (46.0 F). 02.557.51012.5196019701980199020002010Record: 1.7 C (35.1 F) in 1965
The coldest night of the year at Boca del Salado, 1957 to 2012. The record is 1.7 C (35.1 F) in 1965, marked on the chart; the median year is 7.8 C (46.0 F).
Coldest night (TNn) at Boca del Salado by year
YearColdest night (TNn)
195711.7 C (53.1 F)
19585.0 C (41.0 F)
19598.9 C (48.0 F)
19605.0 C (41.0 F)
19617.8 C (46.0 F)
19627.8 C (46.0 F)
19637.8 C (46.0 F)
19645.0 C (41.0 F)
19651.7 C (35.1 F)
19667.8 C (46.0 F)
19675.0 C (41.0 F)
196810.0 C (50.0 F)
196910.0 C (50.0 F)
19707.8 C (46.0 F)
19715.0 C (41.0 F)
19727.8 C (46.0 F)
19737.8 C (46.0 F)
19746.7 C (44.1 F)
19756.7 C (44.1 F)
19767.8 C (46.0 F)
197710.0 C (50.0 F)
19787.8 C (46.0 F)
19795.6 C (42.1 F)
19805.6 C (42.1 F)
198110.0 C (50.0 F)
19828.9 C (48.0 F)
198310.6 C (51.1 F)
198410.0 C (50.0 F)
19858.9 C (48.0 F)
19868.9 C (48.0 F)
198710.0 C (50.0 F)
198810.0 C (50.0 F)
19896.7 C (44.1 F)
19908.9 C (48.0 F)
19915.6 C (42.1 F)
19927.8 C (46.0 F)
19937.8 C (46.0 F)
19943.9 C (39.0 F)
199510.0 C (50.0 F)
19968.9 C (48.0 F)
199710.0 C (50.0 F)
199810.6 C (51.1 F)
19998.9 C (48.0 F)
20008.9 C (48.0 F)
200110.0 C (50.0 F)
200210.0 C (50.0 F)
20035.0 C (41.0 F)
20045.0 C (41.0 F)
20056.7 C (44.1 F)
20063.9 C (39.0 F)
20076.7 C (44.1 F)
20083.9 C (39.0 F)
20095.0 C (41.0 F)
20105.0 C (41.0 F)
201110.0 C (50.0 F)
20125.6 C (42.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Boca del Salado by year The wettest day of the year at Boca del Salado, 1957 to 2012. The record is 319.8 mm (12.6 in) in 2006, marked on the chart; the median year is 64.7 mm (2.5 in). 0100200300400196019701980199020002010Record: 319.8 mm (12.6 in) in 2006
The wettest day of the year at Boca del Salado, 1957 to 2012. The record is 319.8 mm (12.6 in) in 2006, marked on the chart; the median year is 64.7 mm (2.5 in).
Wettest day (Rx1day) at Boca del Salado by year
YearWettest day (Rx1day)
195714.0 mm (0.6 in)
195858.9 mm (2.3 in)
1959160.3 mm (6.3 in)
196063.0 mm (2.5 in)
196154.4 mm (2.1 in)
196282.3 mm (3.2 in)
196332.8 mm (1.3 in)
1964143.3 mm (5.6 in)
196547.0 mm (1.9 in)
196622.4 mm (0.9 in)
196788.4 mm (3.5 in)
196839.9 mm (1.6 in)
196916.8 mm (0.7 in)
197038.9 mm (1.5 in)
197147.0 mm (1.9 in)
197280.8 mm (3.2 in)
197337.8 mm (1.5 in)
1974291.8 mm (11.5 in)
197519.8 mm (0.8 in)
1976105.9 mm (4.2 in)
1977122.9 mm (4.8 in)
197885.3 mm (3.4 in)
197966.3 mm (2.6 in)
198017.3 mm (0.7 in)
1981154.9 mm (6.1 in)
1982137.9 mm (5.4 in)
198371.4 mm (2.8 in)
198441.9 mm (1.6 in)
1985124.0 mm (4.9 in)
198655.4 mm (2.2 in)
198739.9 mm (1.6 in)
19883.3 mm (0.13 in)
198990.9 mm (3.6 in)
1990110.0 mm (4.3 in)
199149.8 mm (2.0 in)
199250.3 mm (2.0 in)
1993201.9 mm (7.9 in)
199449.8 mm (2.0 in)
1995159.8 mm (6.3 in)
199641.9 mm (1.6 in)
19970.0 mm (0.00 in)
1998300.0 mm (11.8 in)
199927.9 mm (1.1 in)
2000129.8 mm (5.1 in)
2001209.8 mm (8.3 in)
200274.9 mm (2.9 in)
2003220.0 mm (8.7 in)
200499.8 mm (3.9 in)
200539.9 mm (1.6 in)
2006319.8 mm (12.6 in)
2007124.0 mm (4.9 in)
200859.9 mm (2.4 in)
200979.8 mm (3.1 in)
201019.8 mm (0.8 in)
201128.4 mm (1.1 in)
201294.0 mm (3.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Boca del Salado by year The wettest five days of the year at Boca del Salado, 1957 to 2012. The record is 434.3 mm (17.1 in) in 1974, marked on the chart; the median year is 93.7 mm (3.7 in). 0200400600196019701980199020002010Record: 434.3 mm (17.1 in) in 1974
The wettest five days of the year at Boca del Salado, 1957 to 2012. The record is 434.3 mm (17.1 in) in 1974, marked on the chart; the median year is 93.7 mm (3.7 in).
Wettest five days (Rx5day) at Boca del Salado by year
YearWettest five days (Rx5day)
195728.2 mm (1.1 in)
1958112.8 mm (4.4 in)
1959171.2 mm (6.7 in)
196066.0 mm (2.6 in)
196177.5 mm (3.1 in)
1962134.4 mm (5.3 in)
196355.2 mm (2.2 in)
1964215.0 mm (8.5 in)
196575.2 mm (3.0 in)
196623.7 mm (0.9 in)
1967151.9 mm (6.0 in)
196851.9 mm (2.0 in)
196918.6 mm (0.7 in)
197056.5 mm (2.2 in)
197163.0 mm (2.5 in)
197289.2 mm (3.5 in)
197358.4 mm (2.3 in)
1974434.3 mm (17.1 in)
197542.2 mm (1.7 in)
1976116.1 mm (4.6 in)
1977149.3 mm (5.9 in)
197899.3 mm (3.9 in)
1979113.5 mm (4.5 in)
198017.3 mm (0.7 in)
1981161.8 mm (6.4 in)
1982186.7 mm (7.4 in)
198398.1 mm (3.9 in)
198445.7 mm (1.8 in)
1985124.0 mm (4.9 in)
198675.2 mm (3.0 in)
198741.2 mm (1.6 in)
19888.9 mm (0.35 in)
1989157.7 mm (6.2 in)
1990112.8 mm (4.4 in)
199179.6 mm (3.1 in)
199250.3 mm (2.0 in)
1993330.0 mm (13.0 in)
199449.8 mm (2.0 in)
1995159.8 mm (6.3 in)
199698.6 mm (3.9 in)
19970.0 mm (0.00 in)
1998331.8 mm (13.1 in)
199947.7 mm (1.9 in)
2000129.8 mm (5.1 in)
2001347.4 mm (13.7 in)
200288.9 mm (3.5 in)
2003232.5 mm (9.2 in)
2004129.8 mm (5.1 in)
200539.9 mm (1.6 in)
2006427.8 mm (16.8 in)
2007147.9 mm (5.8 in)
200861.7 mm (2.4 in)
2009162.6 mm (6.4 in)
201043.9 mm (1.7 in)
201128.4 mm (1.1 in)
2012212.6 mm (8.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Boca del Salado by year The longest dry spell of the year at Boca del Salado, 1957 to 2012. The record is 231 days in 1976, marked on the chart; the median year is 171 days. 050100150200250196019701980199020002010Record: 231 days in 1976
The longest dry spell of the year at Boca del Salado, 1957 to 2012. The record is 231 days in 1976, marked on the chart; the median year is 171 days.
Longest dry spell (CDD) at Boca del Salado by year
YearLongest dry spell (CDD)
195753 days
1958131 days
1959170 days
1960189 days
1961191 days
1962214 days
1963190 days
1964158 days
1965184 days
1966174 days
1967226 days
1968169 days
196945 days
1970146 days
1971205 days
1972147 days
1973214 days
1974187 days
1975179 days
1976231 days
1977209 days
1978194 days
1979174 days
1980209 days
1981158 days
1982200 days
1983124 days
1984158 days
1985181 days
198683 days
198787 days
1988183 days
1989161 days
1990101 days
1991109 days
1992101 days
1993175 days
1994218 days
1995215 days
1996224 days
199789 days
1998196 days
1999150 days
2000168 days
200169 days
200260 days
200390 days
2004171 days
2005145 days
200690 days
200790 days
2008119 days
2009212 days
2010139 days
2011220 days
2012226 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

47 years, 1958 to 2012

A day with at least 74.2 mm (2.9 in) of rain is expected about once in 2 years. A day with at least 400.1 mm (15.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Boca del Salado: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years74.2 mm (2.9 in)
5 years134.5 mm (5.3 in)
10 years183.4 mm (7.2 in)
25 years257.8 mm (10.1 in)
50 years323.7 mm (12.7 in)Longer than the 47 years of record
100 years400.1 mm (15.8 in)Longer than the 47 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, 47 years of values from 1958 to 2012.

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: 319.8 mm (12.6 in) in 2006; 300.0 mm (11.8 in) in 1998; 291.8 mm (11.5 in) in 1974.

Download the Data

  • Data for Boca del Salado standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Boca del Salado 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

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