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Santa Maria Chilchotla Weather Records (MXN00020029)

Record envelope, standing records and threshold days for Santa Maria Chilchotla (MXN00020029), Mexico, with 57 years of record.

Key Facts for Santa Maria Chilchotla

  • Santa Maria Chilchotla (MXN00020029) is a weather station in Mexico at 18.25 latitude and -96.82 longitude, 1,358 m (4,455 ft) above sea level.
  • The station reports from 1954 to 2010, 57 years of record.
  • 1,464 records set at Santa Maria Chilchotla still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Santa Maria Chilchotla set a monthly record high maximum temperature of 33.9 C (93.0 F) on 31 December 2010.

About the Station

  • Location: Mexico, 18.25 latitude, -96.82 longitude.
  • Elevation: 1,358 m (4,455 ft).
  • Period of record: 1954 to 2010, 57 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 Santa Maria Chilchotla, with 2026 drawn through them The band shows the record high and record low for each calendar day at Santa Maria Chilchotla. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Santa Maria Chilchotla. 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 Santa Maria Chilchotla, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan35.0 C (95.0 F)1.7 C (35.1 F)n/an/a
Feb35.0 C (95.0 F)2.2 C (36.0 F)n/an/a
Mar35.6 C (96.1 F)3.9 C (39.0 F)n/an/a
Apr35.6 C (96.1 F)5.6 C (42.1 F)n/an/a
May38.9 C (102.0 F)8.9 C (48.0 F)n/an/a
Jun32.8 C (91.0 F)10.6 C (51.1 F)n/an/a
Jul31.7 C (89.1 F)10.0 C (50.0 F)n/an/a
Aug30.0 C (86.0 F)10.0 C (50.0 F)n/an/a
Sep31.7 C (89.1 F)10.0 C (50.0 F)n/an/a
Oct32.2 C (90.0 F)7.8 C (46.0 F)n/an/a
Nov35.0 C (95.0 F)3.9 C (39.0 F)n/an/a
Dec33.9 C (93.0 F)5.0 C (41.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Santa Maria Chilchotla by the year they were set 1,464 records at Santa Maria Chilchotla still stand. 1956 holds the most, with 87. 02550751001954: 471955: 341956: 871957: 251958: 461959: 501960: 411961: 361962: 301963: 101964: 291965: 211966: 431967: 281968: 261969: 101970: 281971: 471972: 551973: 671974: 321975: 171976: 141977: 441978: 201979: 201980: 241981: 231982: 211983: 411984: 301986: 191987: 51988: 231989: 261990: 41991: 151992: 311993: 192000: 162001: 212002: 452003: 282004: 242005: 182006: 212007: 152008: 272009: 242010: 371954195919641969197419791984199020012006
1,464 records at Santa Maria Chilchotla still stand. 1956 holds the most, with 87.
Standing records at Santa Maria Chilchotla by the year they were set
Year setStanding records
195447
195534
195687
195725
195846
195950
196041
196136
196230
196310
196429
196521
196643
196728
196826
196910
197028
197147
197255
197367
197432
197517
197614
197744
197820
197920
198024
198123
198221
198341
198430
198619
19875
198823
198926
19904
199115
199231
199319
200016
200121
200245
200328
200424
200518
200621
200715
200827
200924
201037

All-Time Record Progression

4 new records
When Santa Maria Chilchotla set new all-time records 4 all-time records were set at Santa Maria Chilchotla between 26 January 1988 and 10 May 2008. Each dot is a new record. Record low maximum temperatureRecord daily precipitationRecord high maximum temperature26 January 1988: Record low maximum temperature 8.9 C (48.0 F)27 January 1988: Record low maximum temperature 7.8 C (46.0 F)16 July 2003: Record daily precipitation 273.8 mm (10.8 in)10 May 2008: Record high maximum temperature 38.9 C (102.0 F)1990199520002005
4 all-time records were set at Santa Maria Chilchotla between 26 January 1988 and 10 May 2008. Each dot is a new record.
When Santa Maria Chilchotla set new all-time records
DateKindDetail
1988-01-26Record low maximum temperatureRecord low maximum temperature 8.9 C (48.0 F)
1988-01-27Record low maximum temperatureRecord low maximum temperature 7.8 C (46.0 F)
2003-07-16Record daily precipitationRecord daily precipitation 273.8 mm (10.8 in)
2008-05-10Record high maximum temperatureRecord high maximum temperature 38.9 C (102.0 F)

Wettest Day of Each Month

Jul: 273.8 mm (10.8 in)
Record daily precipitation for each month at Santa Maria Chilchotla The wettest day on record for each calendar month at Santa Maria Chilchotla. The most was 273.8 mm (10.8 in) on 16 July 2003. 0100200300 Jan: 140.0 mm (5.5 in), 4 January 1969 Jan Feb: 69.1 mm (2.7 in), 22 February 1981 Feb Mar: 88.4 mm (3.5 in), 30 March 1976 Mar Apr: 128.0 mm (5.0 in), 14 April 1974 Apr May: 164.8 mm (6.5 in), 18 May 1968 May Jun: 252.0 mm (9.9 in), 3 June 2004 Jun Jul: 273.8 mm (10.8 in), 16 July 2003 Jul Aug: 237.5 mm (9.4 in), 1 August 1958 Aug Sep: 254.3 mm (10.0 in), 19 September 1960 Sep Oct: 239.8 mm (9.4 in), 14 October 1958 Oct Nov: 142.0 mm (5.6 in), 24 November 2009 Nov Dec: 175.0 mm (6.9 in), 4 December 1981 Dec
The wettest day on record for each calendar month at Santa Maria Chilchotla. The most was 273.8 mm (10.8 in) on 16 July 2003.
Record daily precipitation for each month at Santa Maria Chilchotla
MonthRecord daily precipitation (mm)Date
Jan140.0 mm (5.5 in)4 January 1969
Feb69.1 mm (2.7 in)22 February 1981
Mar88.4 mm (3.5 in)30 March 1976
Apr128.0 mm (5.0 in)14 April 1974
May164.8 mm (6.5 in)18 May 1968
Jun252.0 mm (9.9 in)3 June 2004
Jul273.8 mm (10.8 in)16 July 2003
Aug237.5 mm (9.4 in)1 August 1958
Sep254.3 mm (10.0 in)19 September 1960
Oct239.8 mm (9.4 in)14 October 1958
Nov142.0 mm (5.6 in)24 November 2009
Dec175.0 mm (6.9 in)4 December 1981

Period of Record Coverage

1954 to 2010
Days with data per year at Santa Maria Chilchotla 50 years of record at Santa Maria Chilchotla, 1954 to 2010. 10 years have data for under 90 percent of days and are left out of rankings: 1956, 1957, 1969, 1980, 1986, 1987, 1988, 1989 and others. 1954: 331 of 365 days1955: 363 of 365 days1956: 302 of 366 days1957: 234 of 365 days1958: 363 of 365 days1959: 364 of 365 days1960: 360 of 366 days1961: 361 of 365 days1962: 360 of 365 days1963: 360 of 365 days1964: 365 of 366 days1965: 363 of 365 days1966: 364 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 169 of 365 days1970: 364 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 354 of 365 days1974: 360 of 365 days1975: 364 of 365 days1976: 364 of 366 days1977: 361 of 365 days1978: 361 of 365 days1979: 352 of 365 days1980: 327 of 366 days1981: 362 of 365 days1982: 332 of 365 days1983: 363 of 365 days1984: 330 of 366 days1986: 268 of 365 days1987: 59 of 365 days1988: 178 of 366 days1989: 239 of 365 days1990: 214 of 365 days1991: 181 of 365 days1992: 358 of 366 days1993: 360 of 365 days2000: 350 of 366 days2001: 359 of 365 days2002: 333 of 365 days2003: 329 of 365 days2004: 356 of 366 days2005: 358 of 365 days2006: 358 of 365 days2007: 361 of 365 days2008: 360 of 366 days2009: 358 of 365 days2010: 357 of 365 days196019701980199020002010
50 years of record at Santa Maria Chilchotla, 1954 to 2010. 10 years have data for under 90 percent of days and are left out of rankings: 1956, 1957, 1969, 1980, 1986, 1987, 1988, 1989 and others.
Days with data per year at Santa Maria Chilchotla
YearDays with dataShare of yearComplete
195433191%Yes
195536399%Yes
195630283%No
195723464%No
195836399%Yes
1959364100%Yes
196036098%Yes
196136199%Yes
196236099%Yes
196336099%Yes
1964365100%Yes
196536399%Yes
1966364100%Yes
1967365100%Yes
1968366100%Yes
196916946%No
1970364100%Yes
1971365100%Yes
1972366100%Yes
197335497%Yes
197436099%Yes
1975364100%Yes
197636499%Yes
197736199%Yes
197836199%Yes
197935296%Yes
198032789%No
198136299%Yes
198233291%Yes
198336399%Yes
198433090%Yes
198626873%No
19875916%No
198817849%No
198923965%No
199021459%No
199118150%No
199235898%Yes
199336099%Yes
200035096%Yes
200135998%Yes
200233391%Yes
200332990%Yes
200435697%Yes
200535898%Yes
200635898%Yes
200736199%Yes
200836098%Yes
200935898%Yes
201035798%Yes

Latest Records

20
Latest records at Santa Maria Chilchotla
DateStationRecordValueBeat old record byOld record stoodSignificance
31 December 2010Santa Maria Chilchotla, MXmonthly high max33.9 C (93.0 F)1.1 C (2.0 F)44 years30 of 100 (Routine)
29 December 2010Santa Maria Chilchotla, MXdaily low min (Tie)7.8 C (46.0 F)tie5 years1 of 100 (Routine)
16 December 2010Santa Maria Chilchotla, MXdaily high max31.7 C (89.1 F)1.7 C (3.1 F)39 years19 of 100 (Routine)
16 December 2010Santa Maria Chilchotla, MXdaily low min (Tie)7.8 C (46.0 F)tie52 years5 of 100 (Routine)
15 December 2010Santa Maria Chilchotla, MXdaily low min6.7 C (44.1 F)1.1 C (2.0 F)5 years10 of 100 (Routine)
13 December 2010Santa Maria Chilchotla, MXmonthly low max (Tie)10.0 C (50.0 F)tie9 years4 of 100 (Routine)
10 December 2010Santa Maria Chilchotla, MXdaily low min6.7 C (44.1 F)2.2 C (4.0 F)56 years30 of 100 (Routine)
9 December 2010Santa Maria Chilchotla, MXdaily low min (Tie)8.9 C (48.0 F)tie56 years5 of 100 (Routine)
2 December 2010Santa Maria Chilchotla, MXdaily low min (Tie)7.8 C (46.0 F)tie52 years5 of 100 (Routine)
30 November 2010Santa Maria Chilchotla, MXdaily high max (Tie)26.7 C (80.1 F)tie44 years4 of 100 (Routine)
29 November 2010Santa Maria Chilchotla, MXmonthly high max35.0 C (95.0 F)2.2 C (4.0 F)33 years30 of 100 (Routine)
17 November 2010Santa Maria Chilchotla, MXdaily rain73.9 mm (2.9 in)4.0 mm (0.16 in)16 years11 of 100 (Routine)
16 November 2010Santa Maria Chilchotla, MXdaily high min (Tie)17.8 C (64.0 F)tie23 years2 of 100 (Routine)
13 November 2010Santa Maria Chilchotla, MXdaily high max30.6 C (87.1 F)1.7 C (3.1 F)40 years21 of 100 (Routine)
9 November 2010Santa Maria Chilchotla, MXdaily low min (Tie)6.7 C (44.1 F)tie19 years2 of 100 (Routine)
6 November 2010Santa Maria Chilchotla, MXdaily low min6.7 C (44.1 F)0.5 C (0.9 F)44 years20 of 100 (Routine)
5 November 2010Santa Maria Chilchotla, MXdaily low min7.8 C (46.0 F)1.1 C (2.0 F)44 years22 of 100 (Routine)
2 November 2010Santa Maria Chilchotla, MXdaily rain133.1 mm (5.2 in)100.3 mm (3.9 in)25 years52 of 100 (Notable)
1 November 2010Santa Maria Chilchotla, MXdaily high max30.6 C (87.1 F)2.8 C (5.0 F)53 years28 of 100 (Routine)
28 October 2010Santa Maria Chilchotla, MXdaily rain85.9 mm (3.4 in)21.9 mm (0.9 in)45 years25 of 100 (Routine)

Climate Trend

34 complete years, 1955 to 2010
Annual mean temperature at Santa Maria Chilchotla as warming stripes, 1955 to 2010 One stripe for each of 34 complete years at Santa Maria Chilchotla, 1955 to 2010. Blue stripes are years cooler than the station's own mean of 18.2 C (64.8 F); red stripes are warmer. The coolest year was 1992, at 16.7 C (62.0 F), and the warmest was 1971, at 20.1 C (68.1 F). The strongest colour marks a difference of 1.9 C (3.4 F). 1955: 16.9 C, -1.3 C from the station mean1958: 17.6 C, -0.6 C from the station mean1959: 17.0 C, -1.2 C from the station mean1960: 17.4 C, -0.8 C from the station mean1961: 17.5 C, -0.7 C from the station mean1962: 17.6 C, -0.6 C from the station mean1963: 18.1 C, -0.1 C from the station mean1964: 18.7 C, +0.5 C from the station mean1965: 17.9 C, -0.3 C from the station mean1966: 18.6 C, +0.4 C from the station mean1967: 18.4 C, +0.2 C from the station mean1968: 18.3 C, +0.1 C from the station mean1970: 19.6 C, +1.4 C from the station mean1971: 20.1 C, +1.9 C from the station mean1972: 20.0 C, +1.8 C from the station mean1973: 19.2 C, +0.9 C from the station mean1974: 19.1 C, +0.9 C from the station mean1975: 18.7 C, +0.5 C from the station mean1976: 18.9 C, +0.7 C from the station mean1977: 19.5 C, +1.3 C from the station mean1978: 18.9 C, +0.7 C from the station mean1979: 17.9 C, -0.3 C from the station mean1981: 17.7 C, -0.5 C from the station mean1983: 19.1 C, +0.9 C from the station mean1992: 16.7 C, -1.5 C from the station mean1993: 17.2 C, -1.1 C from the station mean2001: 17.4 C, -0.8 C from the station mean2004: 17.2 C, -1.0 C from the station mean2005: 18.0 C, -0.2 C from the station mean2006: 18.0 C, -0.2 C from the station mean2007: 17.9 C, -0.3 C from the station mean2008: 18.0 C, -0.3 C from the station mean2009: 18.4 C, +0.2 C from the station mean2010: 17.6 C, -0.6 C from the station mean195519601965197019751980198519901995200020052010
One stripe for each of 34 complete years at Santa Maria Chilchotla, 1955 to 2010. Blue stripes are years cooler than the station's own mean of 18.2 C (64.8 F); red stripes are warmer. The coolest year was 1992, at 16.7 C (62.0 F), and the warmest was 1971, at 20.1 C (68.1 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Santa Maria Chilchotla as warming stripes, 1955 to 2010
YearAnnual mean temperatureDifference from the station mean
195516.9 C-1.27 C
195817.6 C-0.58 C
195917.0 C-1.23 C
196017.4 C-0.76 C
196117.5 C-0.71 C
196217.6 C-0.62 C
196318.1 C-0.09 C
196418.7 C+0.50 C
196517.9 C-0.31 C
196618.6 C+0.40 C
196718.4 C+0.18 C
196818.3 C+0.13 C
197019.6 C+1.43 C
197120.1 C+1.88 C
197220.0 C+1.79 C
197319.2 C+0.95 C
197419.1 C+0.92 C
197518.7 C+0.49 C
197618.9 C+0.70 C
197719.5 C+1.27 C
197818.9 C+0.73 C
197917.9 C-0.33 C
198117.7 C-0.48 C
198319.1 C+0.88 C
199216.7 C-1.54 C
199317.2 C-1.05 C
200117.4 C-0.76 C
200417.2 C-0.96 C
200518.0 C-0.24 C
200618.0 C-0.24 C
200717.9 C-0.27 C
200818.0 C-0.25 C
200918.4 C+0.17 C
201017.6 C-0.61 C

The fitted trend in annual mean temperature here over 1955 to 2010 is -0.1 C (-0.3 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.5 to 0.2) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Santa Maria Chilchotla
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.1 C (-0.3 to 0.1) per decade-0.1 F (-0.5 to 0.2) per decade1955 to 201034Not clearly different from zero
Mean daily maximum-0.1 C (-0.3 to 0.1) per decade-0.2 F (-0.6 to 0.3) per decade1955 to 201034Not clearly different from zero
Mean daily minimum-0.1 C (-0.2 to 0.1) per decade-0.1 F (-0.4 to 0.2) per decade1955 to 201034Not 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

1954 to 2010
Yearly extremes at Santa Maria Chilchotla: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.9 C (102.0 F)200832.8 C (91.0 F)50
Coldest night (TNn)1.7 C (35.1 F)19585.6 C (42.1 F)50
Wettest day (Rx1day)273.8 mm (10.8 in)2003174.4 mm (6.9 in)50
Wettest five days (Rx5day)700.5 mm (27.6 in)1975386.5 mm (15.2 in)50
Longest dry spell (CDD)48 days197517 days50

Hottest day (TXx)

Hottest day (TXx) at Santa Maria Chilchotla by year The hottest day of the year at Santa Maria Chilchotla, 1954 to 2010. The record is 38.9 C (102.0 F) in 2008, marked on the chart; the median year is 32.8 C (91.0 F). 25303540196019701980199020002010Record: 38.9 C (102.0 F) in 2008
The hottest day of the year at Santa Maria Chilchotla, 1954 to 2010. The record is 38.9 C (102.0 F) in 2008, marked on the chart; the median year is 32.8 C (91.0 F).
Hottest day (TXx) at Santa Maria Chilchotla by year
YearHottest day (TXx)
195433.9 C (93.0 F)
195527.8 C (82.0 F)
195631.1 C (88.0 F)
195730.0 C (86.0 F)
195835.6 C (96.1 F)
195930.0 C (86.0 F)
196032.8 C (91.0 F)
196135.0 C (95.0 F)
196232.8 C (91.0 F)
196333.3 C (91.9 F)
196428.9 C (84.0 F)
196530.6 C (87.1 F)
196632.8 C (91.0 F)
196735.0 C (95.0 F)
196832.8 C (91.0 F)
196932.2 C (90.0 F)
197035.0 C (95.0 F)
197135.0 C (95.0 F)
197235.6 C (96.1 F)
197335.0 C (95.0 F)
197432.8 C (91.0 F)
197530.0 C (86.0 F)
197628.9 C (84.0 F)
197735.0 C (95.0 F)
197831.7 C (89.1 F)
197930.0 C (86.0 F)
198031.7 C (89.1 F)
198130.0 C (86.0 F)
198230.0 C (86.0 F)
198335.6 C (96.1 F)
198434.4 C (93.9 F)
198632.8 C (91.0 F)
198730.0 C (86.0 F)
198830.0 C (86.0 F)
198933.9 C (93.0 F)
199028.9 C (84.0 F)
199125.0 C (77.0 F)
199228.9 C (84.0 F)
199332.8 C (91.0 F)
200032.8 C (91.0 F)
200132.2 C (90.0 F)
200235.0 C (95.0 F)
200335.0 C (95.0 F)
200430.6 C (87.1 F)
200535.6 C (96.1 F)
200632.8 C (91.0 F)
200735.0 C (95.0 F)
200838.9 C (102.0 F)
200935.6 C (96.1 F)
201036.7 C (98.1 F)

Coldest night (TNn)

Coldest night (TNn) at Santa Maria Chilchotla by year The coldest night of the year at Santa Maria Chilchotla, 1954 to 2010. The record is 1.7 C (35.1 F) in 1958, marked on the chart; the median year is 5.6 C (42.1 F). 02.557.510196019701980199020002010Record: 1.7 C (35.1 F) in 1958
The coldest night of the year at Santa Maria Chilchotla, 1954 to 2010. The record is 1.7 C (35.1 F) in 1958, marked on the chart; the median year is 5.6 C (42.1 F).
Coldest night (TNn) at Santa Maria Chilchotla by year
YearColdest night (TNn)
19542.2 C (36.0 F)
19553.9 C (39.0 F)
19564.4 C (39.9 F)
19575.0 C (41.0 F)
19581.7 C (35.1 F)
19593.9 C (39.0 F)
19602.8 C (37.0 F)
19615.0 C (41.0 F)
19623.3 C (37.9 F)
19635.0 C (41.0 F)
196410.0 C (50.0 F)
19655.6 C (42.1 F)
19666.7 C (44.1 F)
19675.0 C (41.0 F)
19685.0 C (41.0 F)
19696.7 C (44.1 F)
19706.7 C (44.1 F)
19716.7 C (44.1 F)
197210.0 C (50.0 F)
19735.6 C (42.1 F)
19748.9 C (48.0 F)
19758.9 C (48.0 F)
19767.8 C (46.0 F)
19776.7 C (44.1 F)
19787.8 C (46.0 F)
19797.8 C (46.0 F)
19805.6 C (42.1 F)
19816.7 C (44.1 F)
19828.9 C (48.0 F)
19838.9 C (48.0 F)
19847.2 C (45.0 F)
19865.0 C (41.0 F)
19877.8 C (46.0 F)
19885.0 C (41.0 F)
19895.6 C (42.1 F)
19907.8 C (46.0 F)
19916.7 C (44.1 F)
19925.6 C (42.1 F)
19933.9 C (39.0 F)
20006.7 C (44.1 F)
20015.0 C (41.0 F)
20025.0 C (41.0 F)
20035.6 C (42.1 F)
20045.6 C (42.1 F)
20055.6 C (42.1 F)
20063.9 C (39.0 F)
20075.6 C (42.1 F)
20085.0 C (41.0 F)
20095.0 C (41.0 F)
20105.0 C (41.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Santa Maria Chilchotla by year The wettest day of the year at Santa Maria Chilchotla, 1954 to 2010. The record is 273.8 mm (10.8 in) in 2003, marked on the chart; the median year is 174.4 mm (6.9 in). 0100200300196019701980199020002010Record: 273.8 mm (10.8 in) in 2003
The wettest day of the year at Santa Maria Chilchotla, 1954 to 2010. The record is 273.8 mm (10.8 in) in 2003, marked on the chart; the median year is 174.4 mm (6.9 in).
Wettest day (Rx1day) at Santa Maria Chilchotla by year
YearWettest day (Rx1day)
1954141.5 mm (5.6 in)
1955242.8 mm (9.6 in)
1956143.8 mm (5.7 in)
1957206.8 mm (8.1 in)
1958239.8 mm (9.4 in)
1959175.8 mm (6.9 in)
1960254.3 mm (10.0 in)
1961210.8 mm (8.3 in)
1962118.9 mm (4.7 in)
1963157.7 mm (6.2 in)
1964160.5 mm (6.3 in)
196597.0 mm (3.8 in)
1966142.0 mm (5.6 in)
1967119.9 mm (4.7 in)
1968164.8 mm (6.5 in)
1969220.5 mm (8.7 in)
1970159.8 mm (6.3 in)
1971208.3 mm (8.2 in)
1972180.3 mm (7.1 in)
1973157.0 mm (6.2 in)
1974254.0 mm (10.0 in)
1975220.0 mm (8.7 in)
1976149.4 mm (5.9 in)
1977179.8 mm (7.1 in)
1978173.0 mm (6.8 in)
1979125.0 mm (4.9 in)
1980181.9 mm (7.2 in)
1981212.9 mm (8.4 in)
1982106.4 mm (4.2 in)
1983270.3 mm (10.6 in)
1984180.6 mm (7.1 in)
1986185.2 mm (7.3 in)
198741.9 mm (1.6 in)
1988110.0 mm (4.3 in)
1989140.0 mm (5.5 in)
1990159.8 mm (6.3 in)
199199.8 mm (3.9 in)
1992164.8 mm (6.5 in)
1993140.0 mm (5.5 in)
2000115.6 mm (4.6 in)
2001206.0 mm (8.1 in)
2002148.1 mm (5.8 in)
2003273.8 mm (10.8 in)
2004252.0 mm (9.9 in)
2005209.8 mm (8.3 in)
2006133.9 mm (5.3 in)
2007208.8 mm (8.2 in)
2008238.8 mm (9.4 in)
2009235.5 mm (9.3 in)
2010189.0 mm (7.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Santa Maria Chilchotla by year The wettest five days of the year at Santa Maria Chilchotla, 1954 to 2010. The record is 700.5 mm (27.6 in) in 1975, marked on the chart; the median year is 386.5 mm (15.2 in). 0200400600800196019701980199020002010Record: 700.5 mm (27.6 in) in 1975
The wettest five days of the year at Santa Maria Chilchotla, 1954 to 2010. The record is 700.5 mm (27.6 in) in 1975, marked on the chart; the median year is 386.5 mm (15.2 in).
Wettest five days (Rx5day) at Santa Maria Chilchotla by year
YearWettest five days (Rx5day)
1954401.8 mm (15.8 in)
1955587.5 mm (23.1 in)
1956402.9 mm (15.9 in)
1957342.7 mm (13.5 in)
1958489.8 mm (19.3 in)
1959292.9 mm (11.5 in)
1960533.9 mm (21.0 in)
1961490.9 mm (19.3 in)
1962306.5 mm (12.1 in)
1963394.4 mm (15.5 in)
1964331.7 mm (13.1 in)
1965234.1 mm (9.2 in)
1966293.1 mm (11.5 in)
1967274.2 mm (10.8 in)
1968302.8 mm (11.9 in)
1969645.7 mm (25.4 in)
1970419.2 mm (16.5 in)
1971314.0 mm (12.4 in)
1972551.9 mm (21.7 in)
1973483.1 mm (19.0 in)
1974498.1 mm (19.6 in)
1975700.5 mm (27.6 in)
1976374.3 mm (14.7 in)
1977333.2 mm (13.1 in)
1978414.8 mm (16.3 in)
1979307.6 mm (12.1 in)
1980594.2 mm (23.4 in)
1981396.3 mm (15.6 in)
1982266.8 mm (10.5 in)
1983541.1 mm (21.3 in)
1984378.7 mm (14.9 in)
1986472.8 mm (18.6 in)
198774.2 mm (2.9 in)
1988211.4 mm (8.3 in)
1989358.9 mm (14.1 in)
1990414.6 mm (16.3 in)
1991291.1 mm (11.5 in)
1992376.7 mm (14.8 in)
1993293.8 mm (11.6 in)
2000291.6 mm (11.5 in)
2001409.2 mm (16.1 in)
2002334.9 mm (13.2 in)
2003378.7 mm (14.9 in)
2004399.6 mm (15.7 in)
2005329.9 mm (13.0 in)
2006362.5 mm (14.3 in)
2007411.1 mm (16.2 in)
2008536.7 mm (21.1 in)
2009401.4 mm (15.8 in)
2010440.0 mm (17.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Santa Maria Chilchotla by year The longest dry spell of the year at Santa Maria Chilchotla, 1954 to 2010. The record is 48 days in 1975, marked on the chart; the median year is 17 days. 1020304050196019701980199020002010Record: 48 days in 1975
The longest dry spell of the year at Santa Maria Chilchotla, 1954 to 2010. The record is 48 days in 1975, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Santa Maria Chilchotla by year
YearLongest dry spell (CDD)
195415 days
195526 days
195619 days
195714 days
195818 days
195912 days
196014 days
196121 days
196221 days
196321 days
196415 days
196518 days
196621 days
196717 days
196838 days
196917 days
197021 days
197126 days
197220 days
197316 days
197415 days
197548 days
197614 days
197714 days
197813 days
197914 days
198021 days
198123 days
198223 days
198335 days
198415 days
198622 days
198711 days
198813 days
198915 days
199019 days
199112 days
199211 days
199311 days
200014 days
200122 days
200224 days
200332 days
200412 days
200513 days
200619 days
200712 days
200818 days
200911 days
201013 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

42 years, 1954 to 2010

A day with at least 181.8 mm (7.2 in) of rain is expected about once in 2 years. A day with at least 301.6 mm (11.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Santa Maria Chilchotla: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years181.8 mm (7.2 in)
5 years225.4 mm (8.9 in)
10 years248.8 mm (9.8 in)
25 years273.4 mm (10.8 in)
50 years288.6 mm (11.4 in)Longer than the 42 years of record
100 years301.6 mm (11.9 in)Longer than the 42 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, 42 years of values from 1954 to 2010.

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: 273.8 mm (10.8 in) in 2003; 270.3 mm (10.6 in) in 1983; 254.3 mm (10.0 in) in 1960.

Download the Data

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