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San Ignacio Weather Records (MXN00003052)

Record envelope, standing records and threshold days for San Ignacio (MXN00003052), Mexico, with 75 years of record.

Key Facts for San Ignacio

  • San Ignacio (MXN00003052) is a weather station in Mexico at 27.28 latitude and -112.87 longitude, 150 m (492 ft) above sea level.
  • The station reports from 1938 to 2012, 75 years of record.
  • 1,464 records set at San Ignacio still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • San Ignacio set a daily record precipitation of 15.0 mm (0.6 in) on 12 December 2012.

About the Station

  • Location: Mexico, 27.28 latitude, -112.87 longitude.
  • Elevation: 150 m (492 ft).
  • Period of record: 1938 to 2012, 75 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 Ignacio, with 2026 drawn through them The band shows the record high and record low for each calendar day at San Ignacio. 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 Ignacio. 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 Ignacio, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan40.0 C (104.0 F)-3.3 C (26.1 F)n/an/a
Feb37.2 C (99.0 F)-2.2 C (28.0 F)n/an/a
Mar41.1 C (106.0 F)0.0 C (32.0 F)n/an/a
Apr43.3 C (109.9 F)2.8 C (37.0 F)n/an/a
May42.2 C (108.0 F)2.8 C (37.0 F)n/an/a
Jun45.0 C (113.0 F)3.9 C (39.0 F)n/an/a
Jul42.8 C (109.0 F)6.7 C (44.1 F)n/an/a
Aug45.0 C (113.0 F)8.3 C (46.9 F)n/an/a
Sep45.0 C (113.0 F)5.6 C (42.1 F)n/an/a
Oct42.2 C (108.0 F)2.8 C (37.0 F)n/an/a
Nov41.1 C (106.0 F)-2.2 C (28.0 F)n/an/a
Dec38.3 C (100.9 F)-3.3 C (26.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at San Ignacio by the year they were set 1,464 records at San Ignacio still stand. 1955 holds the most, with 170. 0501001502001938: 41939: 581940: 141941: 221942: 231943: 101944: 231945: 451946: 391947: 211948: 361949: 671950: 41951: 391952: 31953: 61954: 461955: 1701956: 121957: 101958: 81959: 91960: 101961: 61962: 191963: 141964: 181965: 101966: 71967: 111968: 111969: 91970: 51971: 211972: 71973: 161974: 81975: 141976: 91977: 31978: 111979: 171980: 71981: 241982: 431983: 131984: 181985: 291986: 171987: 151988: 141989: 101990: 21992: 201993: 41994: 161995: 121996: 161997: 131998: 251999: 102000: 82001: 122002: 162003: 112004: 102005: 72006: 92007: 82008: 72009: 632010: 682011: 232012: 191938194619541962197019781986199520032011
1,464 records at San Ignacio still stand. 1955 holds the most, with 170.
Standing records at San Ignacio by the year they were set
Year setStanding records
19384
193958
194014
194122
194223
194310
194423
194545
194639
194721
194836
194967
19504
195139
19523
19536
195446
1955170
195612
195710
19588
19599
196010
19616
196219
196314
196418
196510
19667
196711
196811
19699
19705
197121
19727
197316
19748
197514
19769
19773
197811
197917
19807
198124
198243
198313
198418
198529
198617
198715
198814
198910
19902
199220
19934
199416
199512
199616
199713
199825
199910
20008
200112
200216
200311
200410
20057
20069
20078
20087
200963
201068
201123
201219

All-Time Record Progression

5 new records
When San Ignacio set new all-time records 5 all-time records were set at San Ignacio between 12 January 1971 and 3 December 2010. Each dot is a new record. Record low minimum temperatureRecord high minimum temperatureRecord daily precipitation12 January 1971: Record low minimum temperature -1.1 C (30.0 F)13 June 2006: Record high minimum temperature 28.9 C (84.0 F)2 September 2009: Record daily precipitation 300.5 mm (11.8 in)28 November 2010: Record low minimum temperature -2.2 C (28.0 F)3 December 2010: Record low minimum temperature -3.3 C (26.1 F)19751980198519901995200020052010
5 all-time records were set at San Ignacio between 12 January 1971 and 3 December 2010. Each dot is a new record.
When San Ignacio set new all-time records
DateKindDetail
1971-01-12Record low minimum temperatureRecord low minimum temperature -1.1 C (30.0 F)
2006-06-13Record high minimum temperatureRecord high minimum temperature 28.9 C (84.0 F)
2009-09-02Record daily precipitationRecord daily precipitation 300.5 mm (11.8 in)
2010-11-28Record low minimum temperatureRecord low minimum temperature -2.2 C (28.0 F)
2010-12-03Record low minimum temperatureRecord low minimum temperature -3.3 C (26.1 F)

Wettest Day of Each Month

Sep: 300.5 mm (11.8 in)
Record daily precipitation for each month at San Ignacio The wettest day on record for each calendar month at San Ignacio. The most was 300.5 mm (11.8 in) on 2 September 2009. 0100200300400 Jan: 49.8 mm (2.0 in), 9 January 1949 Jan Feb: 39.9 mm (1.6 in), 3 February 1998 Feb Mar: 41.9 mm (1.6 in), 1 March 1978 Mar Apr: 15.0 mm (0.6 in), 3 April 1992 Apr May: 5.8 mm (0.23 in), 28 May 1972 May Jun: 0.3 mm (0.01 in), 17 June 1954 Jun Jul: 70.9 mm (2.8 in), 18 July 1974 Jul Aug: 69.9 mm (2.8 in), 26 August 1963 Aug Sep: 300.5 mm (11.8 in), 2 September 2009 Sep Oct: 65.8 mm (2.6 in), 23 October 2006 Oct Nov: 59.9 mm (2.4 in), 12 November 1997 Nov Dec: 71.9 mm (2.8 in), 5 December 1994 Dec
The wettest day on record for each calendar month at San Ignacio. The most was 300.5 mm (11.8 in) on 2 September 2009.
Record daily precipitation for each month at San Ignacio
MonthRecord daily precipitation (mm)Date
Jan49.8 mm (2.0 in)9 January 1949
Feb39.9 mm (1.6 in)3 February 1998
Mar41.9 mm (1.6 in)1 March 1978
Apr15.0 mm (0.6 in)3 April 1992
May5.8 mm (0.23 in)28 May 1972
Jun0.3 mm (0.01 in)17 June 1954
Jul70.9 mm (2.8 in)18 July 1974
Aug69.9 mm (2.8 in)26 August 1963
Sep300.5 mm (11.8 in)2 September 2009
Oct65.8 mm (2.6 in)23 October 2006
Nov59.9 mm (2.4 in)12 November 1997
Dec71.9 mm (2.8 in)5 December 1994

Period of Record Coverage

1938 to 2012
Days with data per year at San Ignacio 74 years of record at San Ignacio, 1938 to 2012. 15 years have data for under 90 percent of days and are left out of rankings: 1938, 1959, 1960, 1961, 1969, 1979, 1980, 1986 and others. 1938: 25 of 365 days1939: 364 of 365 days1940: 366 of 366 days1941: 365 of 365 days1942: 365 of 365 days1943: 365 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 366 of 366 days1949: 365 of 365 days1950: 334 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 363 of 366 days1957: 365 of 365 days1958: 363 of 365 days1959: 251 of 365 days1960: 255 of 366 days1961: 328 of 365 days1962: 362 of 365 days1963: 361 of 365 days1964: 364 of 366 days1965: 351 of 365 days1966: 353 of 365 days1967: 356 of 365 days1968: 363 of 366 days1969: 271 of 365 days1970: 363 of 365 days1971: 350 of 365 days1972: 361 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 358 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 243 of 365 days1980: 61 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 359 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 225 of 365 days1987: 319 of 365 days1988: 303 of 366 days1989: 349 of 365 days1990: 140 of 365 days1992: 342 of 366 days1993: 274 of 365 days1994: 365 of 365 days1995: 304 of 365 days1996: 365 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 234 of 365 days2000: 334 of 366 days2001: 333 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 335 of 365 days2006: 365 of 365 days2007: 335 of 365 days2008: 335 of 366 days2009: 365 of 365 days2010: 364 of 365 days2011: 120 of 365 days2012: 366 of 366 days19401950196019701980199020002010
74 years of record at San Ignacio, 1938 to 2012. 15 years have data for under 90 percent of days and are left out of rankings: 1938, 1959, 1960, 1961, 1969, 1979, 1980, 1986 and others.
Days with data per year at San Ignacio
YearDays with dataShare of yearComplete
1938257%No
1939364100%Yes
1940366100%Yes
1941365100%Yes
1942365100%Yes
1943365100%Yes
1944366100%Yes
1945365100%Yes
1946365100%Yes
1947365100%Yes
1948366100%Yes
1949365100%Yes
195033492%Yes
1951365100%Yes
1952366100%Yes
1953365100%Yes
1954365100%Yes
1955365100%Yes
195636399%Yes
1957365100%Yes
195836399%Yes
195925169%No
196025570%No
196132890%No
196236299%Yes
196336199%Yes
196436499%Yes
196535196%Yes
196635397%Yes
196735698%Yes
196836399%Yes
196927174%No
197036399%Yes
197135096%Yes
197236199%Yes
1973365100%Yes
1974365100%Yes
197535898%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
197924367%No
19806117%No
1981365100%Yes
1982365100%Yes
198335998%Yes
1984366100%Yes
1985365100%Yes
198622562%No
198731987%No
198830383%No
198934996%Yes
199014038%No
199234293%Yes
199327475%No
1994365100%Yes
199530483%No
1996365100%Yes
1997365100%Yes
1998365100%Yes
199923464%No
200033491%Yes
200133391%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
200533592%Yes
2006365100%Yes
200733592%Yes
200833592%Yes
2009365100%Yes
2010364100%Yes
201112033%No
2012366100%Yes

Latest Records

20
Latest records at San Ignacio
DateStationRecordValueBeat old record byOld record stoodSignificance
12 December 2012San Ignacio, MXdaily rain15.0 mm (0.6 in)9.2 mm (0.36 in)32 years20 of 100 (Routine)
24 September 2012San Ignacio, MXdaily high max (Tie)40.6 C (105.1 F)tie49 years5 of 100 (Routine)
23 September 2012San Ignacio, MXdaily high max (Tie)40.0 C (104.0 F)tie59 years6 of 100 (Routine)
14 September 2012San Ignacio, MXdaily rain24.9 mm (1.0 in)12.5 mm (0.5 in)28 years18 of 100 (Routine)
28 August 2012San Ignacio, MXdaily rain47.8 mm (1.9 in)28.0 mm (1.1 in)40 years43 of 100 (Notable)
27 August 2012San Ignacio, MXdaily rain20.8 mm (0.8 in)15.2 mm (0.6 in)9 years20 of 100 (Routine)
19 August 2012San Ignacio, MXdaily rain5.8 mm (0.23 in)5.5 mm (0.22 in)12 years14 of 100 (Routine)
16 August 2012San Ignacio, MXdaily rain49.8 mm (2.0 in)30.0 mm (1.2 in)29 years41 of 100 (Notable)
14 August 2012San Ignacio, MXdaily high min (Tie)23.9 C (75.0 F)tie67 years6 of 100 (Routine)
12 August 2012San Ignacio, MXdaily high min (Tie)23.9 C (75.0 F)tie66 years6 of 100 (Routine)
11 August 2012San Ignacio, MXdaily high min (Tie)25.0 C (77.0 F)tie66 years6 of 100 (Routine)
10 August 2012San Ignacio, MXdaily high min25.6 C (78.1 F)1.7 C (3.1 F)53 years27 of 100 (Routine)
25 July 2012San Ignacio, MXdaily high min25.0 C (77.0 F)1.7 C (3.1 F)66 years31 of 100 (Routine)
24 July 2012San Ignacio, MXdaily high min25.6 C (78.1 F)1.7 C (3.1 F)6 years13 of 100 (Routine)
10 July 2012San Ignacio, MXdaily high min (Tie)22.8 C (73.0 F)tie67 years6 of 100 (Routine)
30 June 2012San Ignacio, MXdaily high min25.6 C (78.1 F)1.2 C (2.2 F)73 years31 of 100 (Routine)
29 June 2012San Ignacio, MXdaily high min26.7 C (80.1 F)2.8 C (5.0 F)53 years30 of 100 (Routine)
27 June 2012San Ignacio, MXdaily high min23.9 C (75.0 F)2.2 C (4.0 F)45 years26 of 100 (Routine)
26 June 2012San Ignacio, MXdaily high min (Tie)22.8 C (73.0 F)tie45 years5 of 100 (Routine)
25 June 2012San Ignacio, MXdaily high min (Tie)21.7 C (71.1 F)tie6 years2 of 100 (Routine)

Climate Trend

49 complete years, 1939 to 2012
Annual mean temperature at San Ignacio as warming stripes, 1939 to 2012 One stripe for each of 49 complete years at San Ignacio, 1939 to 2012. Blue stripes are years cooler than the station's own mean of 21.4 C (70.5 F); red stripes are warmer. The coolest year was 2010, at 19.2 C (66.5 F), and the warmest was 1955, at 24.9 C (76.9 F). The strongest colour marks a difference of 3.6 C (6.5 F). 1939: 20.9 C, -0.5 C from the station mean1940: 21.1 C, -0.3 C from the station mean1941: 21.3 C, -0.1 C from the station mean1942: 20.7 C, -0.7 C from the station mean1943: 21.6 C, +0.2 C from the station mean1944: 20.2 C, -1.2 C from the station mean1945: 22.5 C, +1.1 C from the station mean1946: 22.1 C, +0.7 C from the station mean1947: 19.9 C, -1.5 C from the station mean1948: 19.8 C, -1.6 C from the station mean1949: 20.7 C, -0.7 C from the station mean1951: 21.6 C, +0.2 C from the station mean1952: 21.8 C, +0.4 C from the station mean1953: 21.5 C, +0.1 C from the station mean1954: 22.4 C, +1.0 C from the station mean1955: 24.9 C, +3.5 C from the station mean1956: 23.0 C, +1.6 C from the station mean1957: 21.5 C, +0.1 C from the station mean1958: 21.4 C, 0.0 C from the station mean1962: 21.3 C, -0.1 C from the station mean1963: 22.0 C, +0.6 C from the station mean1964: 20.9 C, -0.5 C from the station mean1965: 21.4 C, 0.0 C from the station mean1966: 21.6 C, +0.2 C from the station mean1967: 21.6 C, +0.2 C from the station mean1968: 21.1 C, -0.3 C from the station mean1970: 21.2 C, -0.2 C from the station mean1972: 21.0 C, -0.4 C from the station mean1973: 20.1 C, -1.3 C from the station mean1974: 20.8 C, -0.6 C from the station mean1975: 20.1 C, -1.3 C from the station mean1976: 20.8 C, -0.6 C from the station mean1977: 21.0 C, -0.4 C from the station mean1978: 21.2 C, -0.2 C from the station mean1981: 20.6 C, -0.8 C from the station mean1982: 22.2 C, +0.8 C from the station mean1983: 20.9 C, -0.5 C from the station mean1984: 20.9 C, -0.5 C from the station mean1985: 20.7 C, -0.7 C from the station mean1994: 22.4 C, +1.0 C from the station mean1996: 23.2 C, +1.8 C from the station mean1998: 23.3 C, +1.9 C from the station mean2002: 22.4 C, +1.0 C from the station mean2003: 22.3 C, +0.9 C from the station mean2004: 21.1 C, -0.3 C from the station mean2006: 22.5 C, +1.1 C from the station mean2009: 20.8 C, -0.6 C from the station mean2010: 19.2 C, -2.2 C from the station mean2012: 21.5 C, +0.1 C from the station mean19391950196019701980199020002010
One stripe for each of 49 complete years at San Ignacio, 1939 to 2012. Blue stripes are years cooler than the station's own mean of 21.4 C (70.5 F); red stripes are warmer. The coolest year was 2010, at 19.2 C (66.5 F), and the warmest was 1955, at 24.9 C (76.9 F). The strongest colour marks a difference of 3.6 C (6.5 F).
Annual mean temperature at San Ignacio as warming stripes, 1939 to 2012
YearAnnual mean temperatureDifference from the station mean
193920.9 C-0.46 C
194021.1 C-0.31 C
194121.3 C-0.11 C
194220.7 C-0.75 C
194321.6 C+0.18 C
194420.2 C-1.23 C
194522.5 C+1.13 C
194622.1 C+0.71 C
194719.9 C-1.50 C
194819.8 C-1.65 C
194920.7 C-0.72 C
195121.6 C+0.16 C
195221.8 C+0.37 C
195321.5 C+0.07 C
195422.4 C+0.97 C
195524.9 C+3.54 C
195623.0 C+1.64 C
195721.5 C+0.10 C
195821.4 C-0.01 C
196221.3 C-0.13 C
196322.0 C+0.57 C
196420.9 C-0.53 C
196521.4 C-0.05 C
196621.6 C+0.24 C
196721.6 C+0.15 C
196821.1 C-0.27 C
197021.2 C-0.20 C
197221.0 C-0.38 C
197320.1 C-1.32 C
197420.8 C-0.58 C
197520.1 C-1.35 C
197620.8 C-0.60 C
197721.0 C-0.37 C
197821.2 C-0.23 C
198120.6 C-0.80 C
198222.2 C+0.83 C
198320.9 C-0.47 C
198420.9 C-0.49 C
198520.7 C-0.72 C
199422.4 C+0.97 C
199623.2 C+1.77 C
199823.3 C+1.88 C
200222.4 C+1.02 C
200322.3 C+0.89 C
200421.1 C-0.34 C
200622.5 C+1.09 C
200920.8 C-0.64 C
201019.2 C-2.25 C
201221.5 C+0.13 C

The fitted trend in annual mean temperature here over 1939 to 2012 is 0.03 C (-0.11 to 0.17) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.2 to 0.3) per decade. The slope is a straight line fitted to 49 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at San Ignacio
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.03 C (-0.11 to 0.17) per decade0.1 F (-0.2 to 0.3) per decade1939 to 201249Not clearly different from zero
Mean daily maximum0.18 C (-0.04 to 0.40) per decade0.3 F (-0.1 to 0.7) per decade1939 to 201249Not clearly different from zero
Mean daily minimum-0.1 C (-0.3 to 0.1) per decade-0.2 F (-0.5 to 0.1) per decade1939 to 201249Not 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

1938 to 2012
Yearly extremes at San Ignacio: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.0 C (113.0 F)193941.7 C (107.1 F)74
Coldest night (TNn)-3.3 C (26.1 F)20101.1 C (34.0 F)74
Wettest day (Rx1day)300.5 mm (11.8 in)200921.6 mm (0.8 in)74
Wettest five days (Rx5day)475.3 mm (18.7 in)200931.7 mm (1.2 in)74
Longest dry spell (CDD)357 days1964173 days74

Hottest day (TXx)

Hottest day (TXx) at San Ignacio by year The hottest day of the year at San Ignacio, 1938 to 2012. The record is 45.0 C (113.0 F) in 1939, marked on the chart; the median year is 41.7 C (107.1 F). 303540451940196019802000Record: 45.0 C (113.0 F) in 1939
The hottest day of the year at San Ignacio, 1938 to 2012. The record is 45.0 C (113.0 F) in 1939, marked on the chart; the median year is 41.7 C (107.1 F).
Hottest day (TXx) at San Ignacio by year
YearHottest day (TXx)
193831.1 C (88.0 F)
193945.0 C (113.0 F)
194041.7 C (107.1 F)
194140.6 C (105.1 F)
194240.0 C (104.0 F)
194341.7 C (107.1 F)
194440.6 C (105.1 F)
194545.0 C (113.0 F)
194641.7 C (107.1 F)
194739.4 C (102.9 F)
194839.4 C (102.9 F)
194939.4 C (102.9 F)
195040.6 C (105.1 F)
195140.6 C (105.1 F)
195242.2 C (108.0 F)
195341.1 C (106.0 F)
195442.2 C (108.0 F)
195544.4 C (111.9 F)
195640.0 C (104.0 F)
195741.1 C (106.0 F)
195842.2 C (108.0 F)
195940.6 C (105.1 F)
196042.8 C (109.0 F)
196141.1 C (106.0 F)
196241.7 C (107.1 F)
196343.3 C (109.9 F)
196442.8 C (109.0 F)
196543.3 C (109.9 F)
196641.7 C (107.1 F)
196741.7 C (107.1 F)
196843.3 C (109.9 F)
196941.7 C (107.1 F)
197041.7 C (107.1 F)
197141.7 C (107.1 F)
197242.2 C (108.0 F)
197342.2 C (108.0 F)
197440.6 C (105.1 F)
197540.0 C (104.0 F)
197640.0 C (104.0 F)
197741.1 C (106.0 F)
197842.2 C (108.0 F)
197940.0 C (104.0 F)
198037.8 C (100.0 F)
198142.8 C (109.0 F)
198245.0 C (113.0 F)
198341.1 C (106.0 F)
198440.6 C (105.1 F)
198543.3 C (109.9 F)
198640.0 C (104.0 F)
198743.9 C (111.0 F)
198841.7 C (107.1 F)
198940.6 C (105.1 F)
199040.6 C (105.1 F)
199242.8 C (109.0 F)
199342.2 C (108.0 F)
199442.8 C (109.0 F)
199541.7 C (107.1 F)
199642.8 C (109.0 F)
199745.0 C (113.0 F)
199842.8 C (109.0 F)
199941.1 C (106.0 F)
200043.9 C (111.0 F)
200142.8 C (109.0 F)
200242.8 C (109.0 F)
200341.7 C (107.1 F)
200440.6 C (105.1 F)
200543.9 C (111.0 F)
200641.7 C (107.1 F)
200741.7 C (107.1 F)
200840.6 C (105.1 F)
200941.7 C (107.1 F)
201043.9 C (111.0 F)
201132.8 C (91.0 F)
201241.7 C (107.1 F)

Coldest night (TNn)

Coldest night (TNn) at San Ignacio by year The coldest night of the year at San Ignacio, 1938 to 2012. The record is -3.3 C (26.1 F) in 2010, marked on the chart; the median year is 1.1 C (34.0 F). -505101940196019802000Record: -3.3 C (26.1 F) in 2010
The coldest night of the year at San Ignacio, 1938 to 2012. The record is -3.3 C (26.1 F) in 2010, marked on the chart; the median year is 1.1 C (34.0 F).
Coldest night (TNn) at San Ignacio by year
YearColdest night (TNn)
19382.8 C (37.0 F)
19390.6 C (33.1 F)
19400.6 C (33.1 F)
19411.7 C (35.1 F)
19421.1 C (34.0 F)
19430.6 C (33.1 F)
19441.1 C (34.0 F)
19452.8 C (37.0 F)
19460.0 C (32.0 F)
19470.6 C (33.1 F)
19481.7 C (35.1 F)
19490.0 C (32.0 F)
19501.7 C (35.1 F)
19510.6 C (33.1 F)
19526.7 C (44.1 F)
19536.1 C (43.0 F)
19547.2 C (45.0 F)
19557.2 C (45.0 F)
19563.3 C (37.9 F)
19573.3 C (37.9 F)
19582.2 C (36.0 F)
19591.1 C (34.0 F)
19601.1 C (34.0 F)
19612.2 C (36.0 F)
19620.6 C (33.1 F)
19630.0 C (32.0 F)
19640.0 C (32.0 F)
19650.6 C (33.1 F)
19660.0 C (32.0 F)
19671.7 C (35.1 F)
19680.6 C (33.1 F)
19690.6 C (33.1 F)
19700.0 C (32.0 F)
1971-1.1 C (30.0 F)
19720.6 C (33.1 F)
19730.0 C (32.0 F)
19740.6 C (33.1 F)
19750.6 C (33.1 F)
19761.7 C (35.1 F)
19773.3 C (37.9 F)
19781.7 C (35.1 F)
19792.8 C (37.0 F)
19800.0 C (32.0 F)
19810.0 C (32.0 F)
19820.6 C (33.1 F)
19830.6 C (33.1 F)
19840.6 C (33.1 F)
19850.6 C (33.1 F)
19861.7 C (35.1 F)
19870.6 C (33.1 F)
19881.7 C (35.1 F)
19891.7 C (35.1 F)
19900.0 C (32.0 F)
19923.9 C (39.0 F)
19933.9 C (39.0 F)
19943.9 C (39.0 F)
19955.0 C (41.0 F)
19964.4 C (39.9 F)
19976.7 C (44.1 F)
19983.9 C (39.0 F)
19993.9 C (39.0 F)
20001.7 C (35.1 F)
20011.7 C (35.1 F)
20022.8 C (37.0 F)
20030.6 C (33.1 F)
20041.7 C (35.1 F)
20055.0 C (41.0 F)
20062.8 C (37.0 F)
20071.1 C (34.0 F)
20082.8 C (37.0 F)
20090.0 C (32.0 F)
2010-3.3 C (26.1 F)
2011-3.3 C (26.1 F)
20120.6 C (33.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at San Ignacio by year The wettest day of the year at San Ignacio, 1938 to 2012. The record is 300.5 mm (11.8 in) in 2009, marked on the chart; the median year is 21.6 mm (0.8 in). 01002003004001940196019802000Record: 300.5 mm (11.8 in) in 2009
The wettest day of the year at San Ignacio, 1938 to 2012. The record is 300.5 mm (11.8 in) in 2009, marked on the chart; the median year is 21.6 mm (0.8 in).
Wettest day (Rx1day) at San Ignacio by year
YearWettest day (Rx1day)
19380.0 mm (0.00 in)
19399.9 mm (0.39 in)
194014.0 mm (0.6 in)
194118.3 mm (0.7 in)
194219.8 mm (0.8 in)
194315.0 mm (0.6 in)
194437.3 mm (1.5 in)
194520.3 mm (0.8 in)
194619.8 mm (0.8 in)
194724.9 mm (1.0 in)
194815.7 mm (0.6 in)
194995.0 mm (3.7 in)
195033.8 mm (1.3 in)
195121.3 mm (0.8 in)
195224.9 mm (1.0 in)
195323.9 mm (0.9 in)
195423.9 mm (0.9 in)
195514.0 mm (0.6 in)
195627.4 mm (1.1 in)
195729.0 mm (1.1 in)
195833.8 mm (1.3 in)
195945.0 mm (1.8 in)
196011.9 mm (0.5 in)
19614.3 mm (0.17 in)
196229.0 mm (1.1 in)
196369.9 mm (2.8 in)
19640.0 mm (0.00 in)
19651.8 mm (0.07 in)
196636.3 mm (1.4 in)
196761.0 mm (2.4 in)
196818.8 mm (0.7 in)
196922.9 mm (0.9 in)
197020.8 mm (0.8 in)
197119.8 mm (0.8 in)
197220.8 mm (0.8 in)
197319.8 mm (0.8 in)
197470.9 mm (2.8 in)
197519.8 mm (0.8 in)
197619.8 mm (0.8 in)
197733.8 mm (1.3 in)
197841.9 mm (1.6 in)
197918.8 mm (0.7 in)
19808.9 mm (0.35 in)
198124.9 mm (1.0 in)
198220.3 mm (0.8 in)
198321.3 mm (0.8 in)
198421.8 mm (0.9 in)
198513.5 mm (0.5 in)
198627.9 mm (1.1 in)
19877.4 mm (0.29 in)
198812.4 mm (0.5 in)
198914.0 mm (0.6 in)
199015.0 mm (0.6 in)
199231.8 mm (1.3 in)
199347.0 mm (1.9 in)
199471.9 mm (2.8 in)
199521.8 mm (0.9 in)
19961.8 mm (0.07 in)
199759.9 mm (2.4 in)
199839.9 mm (1.6 in)
19990.0 mm (0.00 in)
200067.8 mm (2.7 in)
20011.8 mm (0.07 in)
200219.8 mm (0.8 in)
200370.4 mm (2.8 in)
200464.8 mm (2.6 in)
200519.8 mm (0.8 in)
200669.9 mm (2.8 in)
200720.8 mm (0.8 in)
200831.8 mm (1.3 in)
2009300.5 mm (11.8 in)
201039.9 mm (1.6 in)
201125.9 mm (1.0 in)
201249.8 mm (2.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at San Ignacio by year The wettest five days of the year at San Ignacio, 1938 to 2012. The record is 475.3 mm (18.7 in) in 2009, marked on the chart; the median year is 31.7 mm (1.2 in). 02004006001940196019802000Record: 475.3 mm (18.7 in) in 2009
The wettest five days of the year at San Ignacio, 1938 to 2012. The record is 475.3 mm (18.7 in) in 2009, marked on the chart; the median year is 31.7 mm (1.2 in).
Wettest five days (Rx5day) at San Ignacio by year
YearWettest five days (Rx5day)
19380.0 mm (0.00 in)
193925.4 mm (1.0 in)
194014.0 mm (0.6 in)
194133.5 mm (1.3 in)
194219.8 mm (0.8 in)
194317.8 mm (0.7 in)
194498.7 mm (3.9 in)
194533.0 mm (1.3 in)
194655.4 mm (2.2 in)
194745.7 mm (1.8 in)
194831.5 mm (1.2 in)
1949138.7 mm (5.5 in)
195033.8 mm (1.3 in)
195121.6 mm (0.9 in)
195231.8 mm (1.3 in)
195344.7 mm (1.8 in)
195423.9 mm (0.9 in)
195518.8 mm (0.7 in)
195627.4 mm (1.1 in)
195729.0 mm (1.1 in)
195845.7 mm (1.8 in)
195967.9 mm (2.7 in)
196015.0 mm (0.6 in)
19615.6 mm (0.22 in)
196239.4 mm (1.6 in)
196369.9 mm (2.8 in)
19640.0 mm (0.00 in)
19651.8 mm (0.07 in)
196651.3 mm (2.0 in)
196773.2 mm (2.9 in)
196818.8 mm (0.7 in)
196929.7 mm (1.2 in)
197023.3 mm (0.9 in)
197119.8 mm (0.8 in)
197241.6 mm (1.6 in)
197320.6 mm (0.8 in)
197470.9 mm (2.8 in)
197519.8 mm (0.8 in)
197623.9 mm (0.9 in)
197733.8 mm (1.3 in)
197859.7 mm (2.4 in)
197933.2 mm (1.3 in)
198014.7 mm (0.6 in)
198151.3 mm (2.0 in)
198245.4 mm (1.8 in)
198341.4 mm (1.6 in)
198421.8 mm (0.9 in)
198516.8 mm (0.7 in)
19868.6 mm (0.34 in)
198711.8 mm (0.5 in)
198822.3 mm (0.9 in)
198914.0 mm (0.6 in)
199019.8 mm (0.8 in)
199257.2 mm (2.3 in)
199365.0 mm (2.6 in)
1994139.4 mm (5.5 in)
199521.8 mm (0.9 in)
19961.8 mm (0.07 in)
199759.9 mm (2.4 in)
199851.9 mm (2.0 in)
19990.0 mm (0.00 in)
200067.8 mm (2.7 in)
20011.8 mm (0.07 in)
200228.5 mm (1.1 in)
200370.4 mm (2.8 in)
200496.6 mm (3.8 in)
200519.8 mm (0.8 in)
2006118.7 mm (4.7 in)
200737.4 mm (1.5 in)
200831.8 mm (1.3 in)
2009475.3 mm (18.7 in)
201041.7 mm (1.6 in)
201125.9 mm (1.0 in)
201274.4 mm (2.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at San Ignacio by year The longest dry spell of the year at San Ignacio, 1938 to 2012. The record is 357 days in 1964, marked on the chart; the median year is 173 days. 01002003004001940196019802000Record: 357 days in 1964
The longest dry spell of the year at San Ignacio, 1938 to 2012. The record is 357 days in 1964, marked on the chart; the median year is 173 days.
Longest dry spell (CDD) at San Ignacio by year
YearLongest dry spell (CDD)
193831 days
1939234 days
1940126 days
1941197 days
1942222 days
1943240 days
1944137 days
1945205 days
1946194 days
1947141 days
1948124 days
1949213 days
1950127 days
1951127 days
1952141 days
1953172 days
1954182 days
1955190 days
1956117 days
1957147 days
1958144 days
1959213 days
1960191 days
196175 days
1962192 days
1963182 days
1964357 days
1965186 days
1966120 days
1967155 days
1968190 days
196966 days
1970181 days
1971193 days
1972148 days
1973140 days
1974131 days
1975227 days
1976165 days
1977201 days
1978174 days
1979116 days
198040 days
1981199 days
1982174 days
1983104 days
198498 days
1985162 days
198679 days
1987155 days
1988190 days
1989174 days
199059 days
199292 days
1993116 days
1994297 days
1995127 days
1996171 days
1997185 days
1998141 days
1999181 days
2000199 days
2001206 days
2002251 days
2003183 days
2004154 days
2005179 days
2006185 days
2007167 days
2008182 days
2009202 days
2010190 days
201159 days
2012150 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

60 years, 1939 to 2012

A day with at least 23.9 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 187.9 mm (7.4 in) of rain is expected about once in 100 years.

Rainfall return levels at San Ignacio: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years23.9 mm (0.9 in)
5 years45.4 mm (1.8 in)
10 years65.9 mm (2.6 in)
25 years102.2 mm (4.0 in)
50 years139.3 mm (5.5 in)
100 years187.9 mm (7.4 in)Longer than the 60 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, 60 years of values from 1939 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: 300.5 mm (11.8 in) in 2009; 95.0 mm (3.7 in) in 1949; 71.9 mm (2.8 in) in 1994.

Download the Data

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