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San Sebastian del Oeste Weather Records (MXN00014133)

Record envelope, standing records and threshold days for San Sebastian del Oeste (MXN00014133), Mexico, with 40 years of record.

Key Facts for San Sebastian del Oeste

  • San Sebastian del Oeste (MXN00014133) is a weather station in Mexico at 20.75 latitude and -104.85 longitude, 840 m (2,755 ft) above sea level.
  • The station reports from 1950 to 1989, 40 years of record.
  • 1,464 records set at San Sebastian del Oeste still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • San Sebastian del Oeste tied a daily record low minimum temperature of 7.8 C (46.0 F) on 30 October 1989.

About the Station

  • Location: Mexico, 20.75 latitude, -104.85 longitude.
  • Elevation: 840 m (2,755 ft).
  • Period of record: 1950 to 1989, 40 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at San Sebastian del Oeste, with 2026 drawn through them The band shows the record high and record low for each calendar day at San Sebastian del Oeste. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -1001020304050 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at San Sebastian del Oeste. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at San Sebastian del Oeste, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan35.0 C (95.0 F)-2.2 C (28.0 F)n/an/a
Feb40.0 C (104.0 F)0.0 C (32.0 F)n/an/a
Mar37.8 C (100.0 F)0.0 C (32.0 F)n/an/a
Apr40.6 C (105.1 F)0.6 C (33.1 F)n/an/a
May40.0 C (104.0 F)3.9 C (39.0 F)n/an/a
Jun40.0 C (104.0 F)5.0 C (41.0 F)n/an/a
Jul38.3 C (100.9 F)7.8 C (46.0 F)n/an/a
Aug35.6 C (96.1 F)6.7 C (44.1 F)n/an/a
Sep38.9 C (102.0 F)7.8 C (46.0 F)n/an/a
Oct36.7 C (98.1 F)5.0 C (41.0 F)n/an/a
Nov35.6 C (96.1 F)2.2 C (36.0 F)n/an/a
Dec35.0 C (95.0 F)1.7 C (35.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at San Sebastian del Oeste by the year they were set 1,464 records at San Sebastian del Oeste still stand. 1988 holds the most, with 154. 0501001502001950: 51951: 361952: 91953: 251954: 201955: 251956: 201957: 471958: 291959: 401960: 261961: 211962: 181963: 211964: 661965: 901966: 331967: 171968: 211969: 291970: 201971: 241972: 111973: 21974: 1301975: 731977: 121978: 171979: 481980: 231981: 221982: 111983: 321984: 481985: 531986: 1041987: 451988: 1541989: 371950195419581962196619701974197919831987
1,464 records at San Sebastian del Oeste still stand. 1988 holds the most, with 154.
Standing records at San Sebastian del Oeste by the year they were set
Year setStanding records
19505
195136
19529
195325
195420
195525
195620
195747
195829
195940
196026
196121
196218
196321
196466
196590
196633
196717
196821
196929
197020
197124
197211
19732
1974130
197573
197712
197817
197948
198023
198122
198211
198332
198448
198553
1986104
198745
1988154
198937

All-Time Record Progression

2 new records
When San Sebastian del Oeste set new all-time records 2 all-time records were set at San Sebastian del Oeste between 25 February 1986 and 17 April 1986. Each dot is a new record. Record high maximum temperature25 February 1986: Record high maximum temperature 40.0 C (104.0 F)17 April 1986: Record high maximum temperature 40.6 C (105.1 F)
2 all-time records were set at San Sebastian del Oeste between 25 February 1986 and 17 April 1986. Each dot is a new record.
When San Sebastian del Oeste set new all-time records
DateKindDetail
1986-02-25Record high maximum temperatureRecord high maximum temperature 40.0 C (104.0 F)
1986-04-17Record high maximum temperatureRecord high maximum temperature 40.6 C (105.1 F)

Wettest Day of Each Month

Jun: 129.8 mm (5.1 in)
Record daily precipitation for each month at San Sebastian del Oeste The wettest day on record for each calendar month at San Sebastian del Oeste. The most was 129.8 mm (5.1 in) on 23 June 1956. 050100150 Jan: 67.8 mm (2.7 in), 30 January 1984 Jan Feb: 63.0 mm (2.5 in), 12 February 1978 Feb Mar: 74.9 mm (2.9 in), 4 March 1968 Mar Apr: 68.8 mm (2.7 in), 13 April 1959 Apr May: 56.9 mm (2.2 in), 26 May 1983 May Jun: 129.8 mm (5.1 in), 23 June 1956 Jun Jul: 99.8 mm (3.9 in), 28 July 1987 Jul Aug: 104.9 mm (4.1 in), 31 August 1971 Aug Sep: 109.0 mm (4.3 in), 8 September 1958 Sep Oct: 93.0 mm (3.7 in), 7 October 1967 Oct Nov: 54.9 mm (2.2 in), 26 November 1982 Nov Dec: 38.9 mm (1.5 in), 28 December 1953 Dec
The wettest day on record for each calendar month at San Sebastian del Oeste. The most was 129.8 mm (5.1 in) on 23 June 1956.
Record daily precipitation for each month at San Sebastian del Oeste
MonthRecord daily precipitation (mm)Date
Jan67.8 mm (2.7 in)30 January 1984
Feb63.0 mm (2.5 in)12 February 1978
Mar74.9 mm (2.9 in)4 March 1968
Apr68.8 mm (2.7 in)13 April 1959
May56.9 mm (2.2 in)26 May 1983
Jun129.8 mm (5.1 in)23 June 1956
Jul99.8 mm (3.9 in)28 July 1987
Aug104.9 mm (4.1 in)31 August 1971
Sep109.0 mm (4.3 in)8 September 1958
Oct93.0 mm (3.7 in)7 October 1967
Nov54.9 mm (2.2 in)26 November 1982
Dec38.9 mm (1.5 in)28 December 1953

Period of Record Coverage

1950 to 1989
Days with data per year at San Sebastian del Oeste 39 years of record at San Sebastian del Oeste, 1950 to 1989. 12 years have data for under 90 percent of days and are left out of rankings: 1950, 1958, 1964, 1973, 1974, 1975, 1977, 1978 and others. 1950: 92 of 365 days1951: 335 of 365 days1952: 364 of 366 days1953: 362 of 365 days1954: 365 of 365 days1955: 360 of 365 days1956: 357 of 366 days1957: 359 of 365 days1958: 326 of 365 days1959: 359 of 365 days1960: 363 of 366 days1961: 358 of 365 days1962: 361 of 365 days1963: 362 of 365 days1964: 297 of 366 days1965: 362 of 365 days1966: 362 of 365 days1967: 330 of 365 days1968: 365 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 151 of 365 days1974: 296 of 365 days1975: 172 of 365 days1977: 310 of 365 days1978: 313 of 365 days1979: 339 of 365 days1980: 336 of 366 days1981: 364 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 275 of 365 days1986: 237 of 365 days1987: 181 of 365 days1988: 358 of 366 days1989: 182 of 365 days19501955196019651970197519801985
39 years of record at San Sebastian del Oeste, 1950 to 1989. 12 years have data for under 90 percent of days and are left out of rankings: 1950, 1958, 1964, 1973, 1974, 1975, 1977, 1978 and others.
Days with data per year at San Sebastian del Oeste
YearDays with dataShare of yearComplete
19509225%No
195133592%Yes
195236499%Yes
195336299%Yes
1954365100%Yes
195536099%Yes
195635798%Yes
195735998%Yes
195832689%No
195935998%Yes
196036399%Yes
196135898%Yes
196236199%Yes
196336299%Yes
196429781%No
196536299%Yes
196636299%Yes
196733090%Yes
1968365100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
197315141%No
197429681%No
197517247%No
197731085%No
197831386%No
197933993%Yes
198033692%Yes
1981364100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
198527575%No
198623765%No
198718150%No
198835898%Yes
198918250%No

Latest Records

20
Latest records at San Sebastian del Oeste
DateStationRecordValueBeat old record byOld record stoodSignificance
30 October 1989San Sebastian del Oeste, MXdaily low min (Tie)7.8 C (46.0 F)tie19 years2 of 100 (Routine)
28 October 1989San Sebastian del Oeste, MXdaily high max35.0 C (95.0 F)3.3 C (5.9 F)4 years15 of 100 (Routine)
26 October 1989San Sebastian del Oeste, MXdaily high max35.0 C (95.0 F)1.1 C (2.0 F)10 years10 of 100 (Routine)
26 October 1989San Sebastian del Oeste, MXdaily low min (Tie)7.8 C (46.0 F)tie3 years1 of 100 (Routine)
24 October 1989San Sebastian del Oeste, MXdaily high max (Tie)35.0 C (95.0 F)tie10 years1 of 100 (Routine)
24 October 1989San Sebastian del Oeste, MXdaily low min (Tie)7.8 C (46.0 F)tie0 years1 of 100 (Routine)
22 October 1989San Sebastian del Oeste, MXdaily high max (Tie)35.0 C (95.0 F)tie10 years1 of 100 (Routine)
20 October 1989San Sebastian del Oeste, MXdaily high max35.0 C (95.0 F)1.1 C (2.0 F)10 years10 of 100 (Routine)
20 October 1989San Sebastian del Oeste, MXdaily low min (Tie)7.8 C (46.0 F)tie0 years1 of 100 (Routine)
18 October 1989San Sebastian del Oeste, MXdaily high max (Tie)35.0 C (95.0 F)tie10 years1 of 100 (Routine)
18 October 1989San Sebastian del Oeste, MXdaily low min (Tie)7.8 C (46.0 F)tie0 years1 of 100 (Routine)
14 October 1989San Sebastian del Oeste, MXdaily high max (Tie)35.0 C (95.0 F)tie10 years1 of 100 (Routine)
12 October 1989San Sebastian del Oeste, MXdaily high max (Tie)35.0 C (95.0 F)tie10 years1 of 100 (Routine)
9 October 1989San Sebastian del Oeste, MXdaily high max (Tie)35.0 C (95.0 F)tie10 years1 of 100 (Routine)
8 October 1989San Sebastian del Oeste, MXdaily low min (Tie)7.8 C (46.0 F)tie3 years1 of 100 (Routine)
7 October 1989San Sebastian del Oeste, MXdaily low min7.8 C (46.0 F)0.5 C (0.9 F)0 years6 of 100 (Routine)
7 October 1989San Sebastian del Oeste, MXdaily high max (Tie)35.0 C (95.0 F)tie0 years1 of 100 (Routine)
6 October 1989San Sebastian del Oeste, MXdaily low min (Tie)7.8 C (46.0 F)tie3 years1 of 100 (Routine)
5 October 1989San Sebastian del Oeste, MXdaily low min (Tie)7.8 C (46.0 F)tie0 years1 of 100 (Routine)
4 October 1989San Sebastian del Oeste, MXdaily high max (Tie)35.0 C (95.0 F)tie10 years1 of 100 (Routine)

Climate Trend

22 complete years, 1952 to 1988
Annual mean temperature at San Sebastian del Oeste as warming stripes, 1952 to 1988 One stripe for each of 22 complete years at San Sebastian del Oeste, 1952 to 1988. Blue stripes are years cooler than the station's own mean of 18.7 C (65.6 F); red stripes are warmer. The coolest year was 1983, at 17.3 C (63.2 F), and the warmest was 1957, at 20.3 C (68.6 F). The strongest colour marks a difference of 1.7 C (3.1 F). 1952: 18.9 C, +0.3 C from the station mean1953: 19.2 C, +0.5 C from the station mean1954: 19.5 C, +0.9 C from the station mean1955: 19.6 C, +0.9 C from the station mean1956: 20.0 C, +1.4 C from the station mean1957: 20.3 C, +1.7 C from the station mean1959: 18.5 C, -0.1 C from the station mean1960: 18.6 C, -0.1 C from the station mean1961: 17.8 C, -0.9 C from the station mean1962: 18.0 C, -0.6 C from the station mean1963: 18.4 C, -0.3 C from the station mean1965: 18.7 C, 0.0 C from the station mean1966: 17.9 C, -0.7 C from the station mean1968: 18.1 C, -0.5 C from the station mean1969: 19.0 C, +0.3 C from the station mean1970: 18.6 C, -0.1 C from the station mean1971: 18.0 C, -0.7 C from the station mean1972: 17.9 C, -0.8 C from the station mean1981: 18.1 C, -0.6 C from the station mean1982: 18.6 C, -0.1 C from the station mean1983: 17.3 C, -1.3 C from the station mean1988: 19.5 C, +0.8 C from the station mean19521955196019651970197519801985
One stripe for each of 22 complete years at San Sebastian del Oeste, 1952 to 1988. Blue stripes are years cooler than the station's own mean of 18.7 C (65.6 F); red stripes are warmer. The coolest year was 1983, at 17.3 C (63.2 F), and the warmest was 1957, at 20.3 C (68.6 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at San Sebastian del Oeste as warming stripes, 1952 to 1988
YearAnnual mean temperatureDifference from the station mean
195218.9 C+0.28 C
195319.2 C+0.52 C
195419.5 C+0.86 C
195519.6 C+0.93 C
195620.0 C+1.37 C
195720.3 C+1.67 C
195918.5 C-0.13 C
196018.6 C-0.05 C
196117.8 C-0.87 C
196218.0 C-0.63 C
196318.4 C-0.28 C
196518.7 C0.00 C
196617.9 C-0.74 C
196818.1 C-0.54 C
196919.0 C+0.33 C
197018.6 C-0.06 C
197118.0 C-0.65 C
197217.9 C-0.80 C
198118.1 C-0.60 C
198218.6 C-0.07 C
198317.3 C-1.32 C
198819.5 C+0.84 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

1950 to 1989
Yearly extremes at San Sebastian del Oeste: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.6 C (105.1 F)198632.8 C (91.0 F)39
Coldest night (TNn)-2.2 C (28.0 F)19551.7 C (35.1 F)39
Wettest day (Rx1day)129.8 mm (5.1 in)195663.0 mm (2.5 in)39
Wettest five days (Rx5day)273.6 mm (10.8 in)1956152.5 mm (6.0 in)39
Longest dry spell (CDD)162 days1988105 days39

Hottest day (TXx)

Hottest day (TXx) at San Sebastian del Oeste by year The hottest day of the year at San Sebastian del Oeste, 1950 to 1989. The record is 40.6 C (105.1 F) in 1986, marked on the chart; the median year is 32.8 C (91.0 F). 25303540451950196019701980Record: 40.6 C (105.1 F) in 1986
The hottest day of the year at San Sebastian del Oeste, 1950 to 1989. The record is 40.6 C (105.1 F) in 1986, marked on the chart; the median year is 32.8 C (91.0 F).
Hottest day (TXx) at San Sebastian del Oeste by year
YearHottest day (TXx)
195027.8 C (82.0 F)
195132.8 C (91.0 F)
195235.0 C (95.0 F)
195335.0 C (95.0 F)
195435.0 C (95.0 F)
195535.6 C (96.1 F)
195635.6 C (96.1 F)
195738.9 C (102.0 F)
195838.3 C (100.9 F)
195935.0 C (95.0 F)
196035.0 C (95.0 F)
196131.7 C (89.1 F)
196233.3 C (91.9 F)
196331.7 C (89.1 F)
196429.4 C (84.9 F)
196530.6 C (87.1 F)
196628.9 C (84.0 F)
196733.3 C (91.9 F)
196830.0 C (86.0 F)
196932.2 C (90.0 F)
197032.2 C (90.0 F)
197131.1 C (88.0 F)
197231.1 C (88.0 F)
197330.0 C (86.0 F)
197431.7 C (89.1 F)
197528.9 C (84.0 F)
197729.4 C (84.9 F)
197831.1 C (88.0 F)
197938.9 C (102.0 F)
198031.1 C (88.0 F)
198135.6 C (96.1 F)
198231.7 C (89.1 F)
198331.7 C (89.1 F)
198438.9 C (102.0 F)
198538.9 C (102.0 F)
198640.6 C (105.1 F)
198740.0 C (104.0 F)
198840.0 C (104.0 F)
198938.3 C (100.9 F)

Coldest night (TNn)

Coldest night (TNn) at San Sebastian del Oeste by year The coldest night of the year at San Sebastian del Oeste, 1950 to 1989. The record is -2.2 C (28.0 F) in 1955, marked on the chart; the median year is 1.7 C (35.1 F). -2.502.557.5101950196019701980Record: -2.2 C (28.0 F) in 1955
The coldest night of the year at San Sebastian del Oeste, 1950 to 1989. The record is -2.2 C (28.0 F) in 1955, marked on the chart; the median year is 1.7 C (35.1 F).
Coldest night (TNn) at San Sebastian del Oeste by year
YearColdest night (TNn)
19505.0 C (41.0 F)
19511.7 C (35.1 F)
19520.6 C (33.1 F)
19531.7 C (35.1 F)
19543.9 C (39.0 F)
1955-2.2 C (28.0 F)
19560.0 C (32.0 F)
19570.6 C (33.1 F)
1958-1.1 C (30.0 F)
19590.0 C (32.0 F)
19600.6 C (33.1 F)
19610.0 C (32.0 F)
19622.8 C (37.0 F)
19630.0 C (32.0 F)
19642.8 C (37.0 F)
19652.8 C (37.0 F)
19660.0 C (32.0 F)
19671.1 C (34.0 F)
19681.7 C (35.1 F)
19691.7 C (35.1 F)
19700.0 C (32.0 F)
19710.6 C (33.1 F)
19725.0 C (41.0 F)
19734.4 C (39.9 F)
19742.2 C (36.0 F)
19752.2 C (36.0 F)
19775.0 C (41.0 F)
19780.6 C (33.1 F)
19792.2 C (36.0 F)
19802.2 C (36.0 F)
19812.8 C (37.0 F)
19821.7 C (35.1 F)
19830.6 C (33.1 F)
19842.8 C (37.0 F)
19857.8 C (46.0 F)
19862.2 C (36.0 F)
19877.8 C (46.0 F)
19887.8 C (46.0 F)
19897.8 C (46.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at San Sebastian del Oeste by year The wettest day of the year at San Sebastian del Oeste, 1950 to 1989. The record is 129.8 mm (5.1 in) in 1956, marked on the chart; the median year is 63.0 mm (2.5 in). 0501001501950196019701980Record: 129.8 mm (5.1 in) in 1956
The wettest day of the year at San Sebastian del Oeste, 1950 to 1989. The record is 129.8 mm (5.1 in) in 1956, marked on the chart; the median year is 63.0 mm (2.5 in).
Wettest day (Rx1day) at San Sebastian del Oeste by year
YearWettest day (Rx1day)
195022.9 mm (0.9 in)
195172.9 mm (2.9 in)
195255.9 mm (2.2 in)
195353.8 mm (2.1 in)
195481.8 mm (3.2 in)
195555.9 mm (2.2 in)
1956129.8 mm (5.1 in)
195764.8 mm (2.6 in)
1958109.0 mm (4.3 in)
195986.9 mm (3.4 in)
196088.4 mm (3.5 in)
196155.9 mm (2.2 in)
196259.9 mm (2.4 in)
196379.8 mm (3.1 in)
196454.9 mm (2.2 in)
196539.9 mm (1.6 in)
196652.3 mm (2.1 in)
196793.0 mm (3.7 in)
196880.3 mm (3.2 in)
196961.5 mm (2.4 in)
197078.5 mm (3.1 in)
1971104.9 mm (4.1 in)
197249.3 mm (1.9 in)
197360.5 mm (2.4 in)
197456.9 mm (2.2 in)
197553.6 mm (2.1 in)
197757.9 mm (2.3 in)
197863.0 mm (2.5 in)
197982.8 mm (3.3 in)
198095.0 mm (3.7 in)
198179.8 mm (3.1 in)
198254.9 mm (2.2 in)
198374.9 mm (2.9 in)
198467.8 mm (2.7 in)
198550.3 mm (2.0 in)
198659.9 mm (2.4 in)
198799.8 mm (3.9 in)
198869.9 mm (2.8 in)
19890.0 mm (0.00 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at San Sebastian del Oeste by year The wettest five days of the year at San Sebastian del Oeste, 1950 to 1989. The record is 273.6 mm (10.8 in) in 1956, marked on the chart; the median year is 152.5 mm (6.0 in). 01002003001950196019701980Record: 273.6 mm (10.8 in) in 1956
The wettest five days of the year at San Sebastian del Oeste, 1950 to 1989. The record is 273.6 mm (10.8 in) in 1956, marked on the chart; the median year is 152.5 mm (6.0 in).
Wettest five days (Rx5day) at San Sebastian del Oeste by year
YearWettest five days (Rx5day)
195047.6 mm (1.9 in)
1951242.4 mm (9.5 in)
1952116.6 mm (4.6 in)
1953139.3 mm (5.5 in)
1954201.2 mm (7.9 in)
1955147.3 mm (5.8 in)
1956273.6 mm (10.8 in)
1957133.4 mm (5.3 in)
1958165.0 mm (6.5 in)
1959183.9 mm (7.2 in)
1960166.4 mm (6.6 in)
1961152.5 mm (6.0 in)
1962120.6 mm (4.7 in)
1963200.7 mm (7.9 in)
1964120.7 mm (4.8 in)
1965121.4 mm (4.8 in)
1966145.8 mm (5.7 in)
1967155.2 mm (6.1 in)
1968197.2 mm (7.8 in)
1969194.5 mm (7.7 in)
1970186.8 mm (7.4 in)
1971213.4 mm (8.4 in)
1972108.5 mm (4.3 in)
1973194.5 mm (7.7 in)
1974194.9 mm (7.7 in)
1975152.1 mm (6.0 in)
1977121.9 mm (4.8 in)
1978122.2 mm (4.8 in)
1979154.7 mm (6.1 in)
1980190.0 mm (7.5 in)
1981161.3 mm (6.4 in)
198296.1 mm (3.8 in)
1983149.1 mm (5.9 in)
1984115.6 mm (4.6 in)
1985120.7 mm (4.8 in)
1986166.5 mm (6.6 in)
1987174.5 mm (6.9 in)
1988124.5 mm (4.9 in)
19890.0 mm (0.00 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at San Sebastian del Oeste by year The longest dry spell of the year at San Sebastian del Oeste, 1950 to 1989. The record is 162 days in 1988, marked on the chart; the median year is 105 days. 0501001502001950196019701980Record: 162 days in 1988
The longest dry spell of the year at San Sebastian del Oeste, 1950 to 1989. The record is 162 days in 1988, marked on the chart; the median year is 105 days.
Longest dry spell (CDD) at San Sebastian del Oeste by year
YearLongest dry spell (CDD)
195082 days
195174 days
1952108 days
1953105 days
1954160 days
1955123 days
195693 days
1957119 days
195848 days
195968 days
1960151 days
1961139 days
1962137 days
1963140 days
196454 days
1965121 days
196670 days
1967104 days
196891 days
1969130 days
197098 days
1971131 days
1972147 days
197362 days
1974113 days
1975133 days
197763 days
197842 days
1979107 days
198053 days
198144 days
1982136 days
198382 days
198497 days
198594 days
198668 days
1987130 days
1988162 days
1989151 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

30 years, 1951 to 1988

A day with at least 69.9 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 137.9 mm (5.4 in) of rain is expected about once in 100 years.

Rainfall return levels at San Sebastian del Oeste: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years69.9 mm (2.8 in)
5 years88.2 mm (3.5 in)
10 years100.3 mm (3.9 in)
25 years115.6 mm (4.6 in)
50 years126.8 mm (5.0 in)Longer than the 30 years of record
100 years137.9 mm (5.4 in)Longer than the 30 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, 30 years of values from 1951 to 1988.

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: 129.8 mm (5.1 in) in 1956; 109.0 mm (4.3 in) in 1958; 104.9 mm (4.1 in) in 1971.

Download the Data

  • Data for San Sebastian del Oeste standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for San Sebastian del Oeste 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

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