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El Potosi Weather Records (MXN00019020)

Record envelope, standing records and threshold days for El Potosi (MXN00019020), Mexico, with 56 years of record.

Key Facts for El Potosi

  • El Potosi (MXN00019020) is a weather station in Mexico at 24.83 latitude and -100.32 longitude, 1,890 m (6,200 ft) above sea level.
  • The station reports from 1956 to 2011, 56 years of record.
  • 1,464 records set at El Potosi still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • El Potosi tied a daily record low minimum temperature of -3.3 C (26.1 F) on 30 December 2011.

About the Station

  • Location: Mexico, 24.83 latitude, -100.32 longitude.
  • Elevation: 1,890 m (6,200 ft).
  • Period of record: 1956 to 2011, 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 El Potosi, with 2026 drawn through them The band shows the record high and record low for each calendar day at El Potosi. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at El Potosi. 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 El Potosi, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan30.6 C (87.1 F)-10.0 C (14.0 F)n/an/a
Feb33.9 C (93.0 F)-12.2 C (10.0 F)n/an/a
Mar36.7 C (98.1 F)-8.3 C (17.1 F)n/an/a
Apr37.8 C (100.0 F)-3.3 C (26.1 F)n/an/a
May45.0 C (113.0 F)0.0 C (32.0 F)n/an/a
Jun40.0 C (104.0 F)1.7 C (35.1 F)n/an/a
Jul41.7 C (107.1 F)0.0 C (32.0 F)n/an/a
Aug38.9 C (102.0 F)1.7 C (35.1 F)n/an/a
Sep38.9 C (102.0 F)-3.3 C (26.1 F)n/an/a
Oct38.9 C (102.0 F)-6.1 C (21.0 F)n/an/a
Nov32.8 C (91.0 F)-14.4 C (6.1 F)n/an/a
Dec36.7 C (98.1 F)-9.4 C (15.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at El Potosi by the year they were set 1,464 records at El Potosi still stand. 1964 holds the most, with 80. 0204060801959: 271960: 331962: 661963: 681964: 801965: 651966: 561967: 31968: 201969: 311970: 341971: 331972: 171973: 91974: 21975: 321976: 551977: 291978: 261979: 181980: 251981: 541982: 221983: 121984: 71985: 191986: 451987: 281988: 311989: 241990: 301991: 371992: 161993: 191994: 191995: 171996: 321997: 311998: 751999: 182000: 52001: 152002: 202003: 242004: 32005: 272006: 142007: 222008: 302009: 122010: 72011: 20195919661972197819841990199620022008
1,464 records at El Potosi still stand. 1964 holds the most, with 80.
Standing records at El Potosi by the year they were set
Year setStanding records
195927
196033
196266
196368
196480
196565
196656
19673
196820
196931
197034
197133
197217
19739
19742
197532
197655
197729
197826
197918
198025
198154
198222
198312
19847
198519
198645
198728
198831
198924
199030
199137
199216
199319
199419
199517
199632
199731
199875
199918
20005
200115
200220
200324
20043
200527
200614
200722
200830
200912
20107
201120

All-Time Record Progression

5 new records
When El Potosi set new all-time records 5 all-time records were set at El Potosi between 14 June 2002 and 28 November 2011. Each dot is a new record. Record high maximum temperatureRecord low minimum temperature14 June 2002: Record high maximum temperature 40.0 C (104.0 F)6 May 2003: Record high maximum temperature 40.6 C (105.1 F)10 May 2003: Record high maximum temperature 41.7 C (107.1 F)30 May 2008: Record high maximum temperature 45.0 C (113.0 F)28 November 2011: Record low minimum temperature -14.4 C (6.1 F)20052010
5 all-time records were set at El Potosi between 14 June 2002 and 28 November 2011. Each dot is a new record.
When El Potosi set new all-time records
DateKindDetail
2002-06-14Record high maximum temperatureRecord high maximum temperature 40.0 C (104.0 F)
2003-05-06Record high maximum temperatureRecord high maximum temperature 40.6 C (105.1 F)
2003-05-10Record high maximum temperatureRecord high maximum temperature 41.7 C (107.1 F)
2008-05-30Record high maximum temperatureRecord high maximum temperature 45.0 C (113.0 F)
2011-11-28Record low minimum temperatureRecord low minimum temperature -14.4 C (6.1 F)

Wettest Day of Each Month

Sep: 122.9 mm (4.8 in)
Record daily precipitation for each month at El Potosi The wettest day on record for each calendar month at El Potosi. The most was 122.9 mm (4.8 in) on 16 September 1988. 050100150 Jan: 51.6 mm (2.0 in), 25 January 1984 Jan Feb: 30.0 mm (1.2 in), 20 February 1960 Feb Mar: 57.9 mm (2.3 in), 8 March 2005 Mar Apr: 66.8 mm (2.6 in), 15 April 1964 Apr May: 62.0 mm (2.4 in), 25 May 1994 May Jun: 42.9 mm (1.7 in), 19 June 1976 Jun Jul: 62.0 mm (2.4 in), 21 July 2005 Jul Aug: 86.9 mm (3.4 in), 25 August 2006 Aug Sep: 122.9 mm (4.8 in), 16 September 1988 Sep Oct: 41.9 mm (1.6 in), 18 October 2003 Oct Nov: 55.9 mm (2.2 in), 30 November 2009 Nov Dec: 51.8 mm (2.0 in), 24 December 1958 Dec
The wettest day on record for each calendar month at El Potosi. The most was 122.9 mm (4.8 in) on 16 September 1988.
Record daily precipitation for each month at El Potosi
MonthRecord daily precipitation (mm)Date
Jan51.6 mm (2.0 in)25 January 1984
Feb30.0 mm (1.2 in)20 February 1960
Mar57.9 mm (2.3 in)8 March 2005
Apr66.8 mm (2.6 in)15 April 1964
May62.0 mm (2.4 in)25 May 1994
Jun42.9 mm (1.7 in)19 June 1976
Jul62.0 mm (2.4 in)21 July 2005
Aug86.9 mm (3.4 in)25 August 2006
Sep122.9 mm (4.8 in)16 September 1988
Oct41.9 mm (1.6 in)18 October 2003
Nov55.9 mm (2.2 in)30 November 2009
Dec51.8 mm (2.0 in)24 December 1958

Period of Record Coverage

1959 to 2011
Days with data per year at El Potosi 52 years of record at El Potosi, 1959 to 2011. 15 years have data for under 90 percent of days and are left out of rankings: 1959, 1960, 1962, 1967, 1968, 1969, 1971, 1972 and others. 1959: 64 of 365 days1960: 151 of 366 days1962: 275 of 365 days1963: 365 of 365 days1964: 365 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 194 of 365 days1968: 243 of 366 days1969: 300 of 365 days1970: 359 of 365 days1971: 304 of 365 days1972: 245 of 366 days1973: 152 of 365 days1974: 121 of 365 days1975: 362 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 334 of 365 days1980: 273 of 366 days1981: 363 of 365 days1982: 303 of 365 days1983: 183 of 365 days1984: 153 of 366 days1985: 332 of 365 days1986: 334 of 365 days1987: 364 of 365 days1988: 366 of 366 days1989: 334 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 365 of 366 days1993: 365 of 365 days1994: 363 of 365 days1995: 364 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 362 of 365 days1999: 361 of 365 days2000: 359 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 336 of 366 days2005: 365 of 365 days2006: 360 of 365 days2007: 360 of 365 days2008: 359 of 366 days2009: 365 of 365 days2010: 243 of 365 days2011: 365 of 365 days196019701980199020002010
52 years of record at El Potosi, 1959 to 2011. 15 years have data for under 90 percent of days and are left out of rankings: 1959, 1960, 1962, 1967, 1968, 1969, 1971, 1972 and others.
Days with data per year at El Potosi
YearDays with dataShare of yearComplete
19596418%No
196015141%No
196227575%No
1963365100%Yes
1964365100%Yes
1965365100%Yes
1966365100%Yes
196719453%No
196824366%No
196930082%No
197035998%Yes
197130483%No
197224567%No
197315242%No
197412133%No
197536299%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
197933492%Yes
198027375%No
198136399%Yes
198230383%No
198318350%No
198415342%No
198533291%Yes
198633492%Yes
1987364100%Yes
1988366100%Yes
198933492%Yes
1990365100%Yes
1991365100%Yes
1992365100%Yes
1993365100%Yes
199436399%Yes
1995364100%Yes
1996366100%Yes
1997365100%Yes
199836299%Yes
199936199%Yes
200035998%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
200433692%Yes
2005365100%Yes
200636099%Yes
200736099%Yes
200835998%Yes
2009365100%Yes
201024367%No
2011365100%Yes

Latest Records

20
Latest records at El Potosi
DateStationRecordValueBeat old record byOld record stoodSignificance
30 December 2011El Potosi, MXdaily low min (Tie)-3.3 C (26.1 F)tie1 year1 of 100 (Routine)
29 December 2011El Potosi, MXdaily low min-6.1 C (21.0 F)1.1 C (2.0 F)52 years22 of 100 (Routine)
28 December 2011El Potosi, MXdaily low min-6.1 C (21.0 F)1.1 C (2.0 F)52 years22 of 100 (Routine)
27 December 2011El Potosi, MXmonthly low min (Tie)-9.4 C (15.1 F)tie34 years6 of 100 (Routine)
4 December 2011El Potosi, MXdaily low min (Tie)-4.4 C (24.1 F)tie33 years3 of 100 (Routine)
30 November 2011El Potosi, MXdaily low min-5.0 C (23.0 F)3.9 C (7.0 F)18 years20 of 100 (Routine)
29 November 2011El Potosi, MXdaily low min-9.4 C (15.1 F)6.1 C (11.0 F)17 years26 of 100 (Routine)
28 November 2011El Potosi, MXall-time low min-14.4 C (6.1 F)2.2 C (4.0 F)51 years45 of 100 (Notable)
9 September 2011El Potosi, MXdaily low min1.7 C (35.1 F)1.1 C (2.0 F)48 years22 of 100 (Routine)
7 September 2011El Potosi, MXdaily low min0.6 C (33.1 F)2.2 C (4.0 F)48 years26 of 100 (Routine)
3 September 2011El Potosi, MXdaily high max (Tie)31.7 C (89.1 F)tie9 years1 of 100 (Routine)
9 August 2011El Potosi, MXdaily high max (Tie)32.8 C (91.0 F)tie12 years2 of 100 (Routine)
8 August 2011El Potosi, MXdaily high min (Tie)15.0 C (59.0 F)tie46 years4 of 100 (Routine)
7 August 2011El Potosi, MXdaily high min (Tie)15.0 C (59.0 F)tie20 years2 of 100 (Routine)
6 August 2011El Potosi, MXdaily high min (Tie)15.0 C (59.0 F)tie46 years4 of 100 (Routine)
4 August 2011El Potosi, MXdaily rain6.4 mm (0.25 in)0.6 mm (0.02 in)44 years18 of 100 (Routine)
27 April 2011El Potosi, MXdaily high max33.9 C (93.0 F)1.1 C (2.0 F)40 years20 of 100 (Routine)
22 April 2011El Potosi, MXdaily high max33.9 C (93.0 F)2.2 C (4.0 F)46 years25 of 100 (Routine)
20 April 2011El Potosi, MXdaily high max33.9 C (93.0 F)1.1 C (2.0 F)44 years21 of 100 (Routine)
19 April 2011El Potosi, MXdaily high max (Tie)31.7 C (89.1 F)tie44 years4 of 100 (Routine)

Climate Trend

28 complete years, 1965 to 2011
Annual mean temperature at El Potosi as warming stripes, 1965 to 2011 One stripe for each of 28 complete years at El Potosi, 1965 to 2011. Blue stripes are years cooler than the station's own mean of 16.2 C (61.2 F); red stripes are warmer. The coolest year was 1976, at 14.5 C (58.0 F), and the warmest was 1998, at 18.5 C (65.3 F). The strongest colour marks a difference of 2.3 C (4.1 F). 1965: 16.9 C, +0.7 C from the station mean1970: 15.6 C, -0.6 C from the station mean1975: 15.9 C, -0.4 C from the station mean1976: 14.5 C, -1.8 C from the station mean1977: 14.9 C, -1.3 C from the station mean1978: 16.1 C, -0.1 C from the station mean1981: 16.0 C, -0.3 C from the station mean1987: 15.4 C, -0.8 C from the station mean1988: 15.2 C, -1.0 C from the station mean1990: 15.7 C, -0.5 C from the station mean1991: 16.4 C, +0.2 C from the station mean1992: 15.3 C, -1.0 C from the station mean1993: 16.0 C, -0.2 C from the station mean1994: 16.4 C, +0.1 C from the station mean1995: 16.7 C, +0.5 C from the station mean1997: 17.3 C, +1.1 C from the station mean1998: 18.5 C, +2.3 C from the station mean1999: 15.8 C, -0.4 C from the station mean2000: 16.6 C, +0.3 C from the station mean2001: 17.1 C, +0.9 C from the station mean2002: 17.3 C, +1.1 C from the station mean2003: 16.3 C, +0.1 C from the station mean2005: 16.4 C, +0.1 C from the station mean2006: 15.1 C, -1.1 C from the station mean2007: 17.4 C, +1.2 C from the station mean2008: 16.4 C, +0.2 C from the station mean2009: 16.5 C, +0.3 C from the station mean2011: 16.5 C, +0.3 C from the station mean1965197019751980198519901995200020052010
One stripe for each of 28 complete years at El Potosi, 1965 to 2011. Blue stripes are years cooler than the station's own mean of 16.2 C (61.2 F); red stripes are warmer. The coolest year was 1976, at 14.5 C (58.0 F), and the warmest was 1998, at 18.5 C (65.3 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at El Potosi as warming stripes, 1965 to 2011
YearAnnual mean temperatureDifference from the station mean
196516.9 C+0.67 C
197015.6 C-0.63 C
197515.9 C-0.37 C
197614.5 C-1.76 C
197714.9 C-1.30 C
197816.1 C-0.12 C
198116.0 C-0.26 C
198715.4 C-0.78 C
198815.2 C-1.00 C
199015.7 C-0.49 C
199116.4 C+0.17 C
199215.3 C-0.96 C
199316.0 C-0.19 C
199416.4 C+0.14 C
199516.7 C+0.52 C
199717.3 C+1.12 C
199818.5 C+2.29 C
199915.8 C-0.40 C
200016.6 C+0.34 C
200117.1 C+0.89 C
200217.3 C+1.08 C
200316.3 C+0.09 C
200516.4 C+0.13 C
200615.1 C-1.14 C
200717.4 C+1.21 C
200816.4 C+0.21 C
200916.5 C+0.31 C
201116.5 C+0.26 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

1956 to 2011
Yearly extremes at El Potosi: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.0 C (113.0 F)200835.0 C (95.0 F)52
Coldest night (TNn)-14.4 C (6.1 F)2011-4.4 C (24.1 F)52
Wettest day (Rx1day)122.9 mm (4.8 in)198834.8 mm (1.4 in)55
Wettest five days (Rx5day)122.9 mm (4.8 in)198853.8 mm (2.1 in)55
Longest dry spell (CDD)108 days200954 days55

Hottest day (TXx)

Hottest day (TXx) at El Potosi by year The hottest day of the year at El Potosi, 1956 to 2011. The record is 45.0 C (113.0 F) in 2008, marked on the chart; the median year is 35.0 C (95.0 F). 2530354045196019701980199020002010Record: 45.0 C (113.0 F) in 2008
The hottest day of the year at El Potosi, 1956 to 2011. The record is 45.0 C (113.0 F) in 2008, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at El Potosi by year
YearHottest day (TXx)
1956n/a
1957n/a
1958n/a
195928.9 C (84.0 F)
196031.7 C (89.1 F)
196237.8 C (100.0 F)
196335.6 C (96.1 F)
196438.9 C (102.0 F)
196536.7 C (98.1 F)
196637.8 C (100.0 F)
196735.0 C (95.0 F)
196831.7 C (89.1 F)
196935.0 C (95.0 F)
197035.6 C (96.1 F)
197133.9 C (93.0 F)
197238.9 C (102.0 F)
197332.8 C (91.0 F)
197432.8 C (91.0 F)
197533.3 C (91.9 F)
197630.0 C (86.0 F)
197732.8 C (91.0 F)
197835.6 C (96.1 F)
197932.8 C (91.0 F)
198033.9 C (93.0 F)
198138.9 C (102.0 F)
198235.0 C (95.0 F)
198331.7 C (89.1 F)
198435.6 C (96.1 F)
198530.6 C (87.1 F)
198638.9 C (102.0 F)
198735.0 C (95.0 F)
198830.0 C (86.0 F)
198933.9 C (93.0 F)
199033.9 C (93.0 F)
199133.9 C (93.0 F)
199232.8 C (91.0 F)
199333.9 C (93.0 F)
199431.7 C (89.1 F)
199533.9 C (93.0 F)
199632.8 C (91.0 F)
199736.7 C (98.1 F)
199838.9 C (102.0 F)
199932.8 C (91.0 F)
200035.0 C (95.0 F)
200135.0 C (95.0 F)
200240.0 C (104.0 F)
200341.7 C (107.1 F)
200435.6 C (96.1 F)
200541.7 C (107.1 F)
200635.6 C (96.1 F)
200738.9 C (102.0 F)
200845.0 C (113.0 F)
200936.7 C (98.1 F)
201035.0 C (95.0 F)
201136.7 C (98.1 F)

Coldest night (TNn)

Coldest night (TNn) at El Potosi by year The coldest night of the year at El Potosi, 1956 to 2011. The record is -14.4 C (6.1 F) in 2011, marked on the chart; the median year is -4.4 C (24.1 F). -15-10-505196019701980199020002010Record: -14.4 C (6.1 F) in 2011
The coldest night of the year at El Potosi, 1956 to 2011. The record is -14.4 C (6.1 F) in 2011, marked on the chart; the median year is -4.4 C (24.1 F).
Coldest night (TNn) at El Potosi by year
YearColdest night (TNn)
1956n/a
1957n/a
1958n/a
1959-7.2 C (19.0 F)
1960-12.2 C (10.0 F)
19620.0 C (32.0 F)
1963-8.3 C (17.1 F)
19640.0 C (32.0 F)
19650.0 C (32.0 F)
1966-4.4 C (24.1 F)
1967-2.2 C (28.0 F)
1968-4.4 C (24.1 F)
19690.0 C (32.0 F)
19700.0 C (32.0 F)
19710.0 C (32.0 F)
19721.7 C (35.1 F)
19730.0 C (32.0 F)
19740.0 C (32.0 F)
1975-6.1 C (21.0 F)
1976-7.2 C (19.0 F)
1977-9.4 C (15.1 F)
1978-8.3 C (17.1 F)
1979-7.2 C (19.0 F)
1980-4.4 C (24.1 F)
1981-0.6 C (30.9 F)
1982-2.2 C (28.0 F)
1983-4.4 C (24.1 F)
19842.2 C (36.0 F)
1985-5.6 C (21.9 F)
1986-8.3 C (17.1 F)
1987-3.3 C (26.1 F)
1988-8.3 C (17.1 F)
1989-8.3 C (17.1 F)
1990-5.0 C (23.0 F)
1991-8.3 C (17.1 F)
1992-4.4 C (24.1 F)
1993-4.4 C (24.1 F)
1994-5.0 C (23.0 F)
1995-3.3 C (26.1 F)
1996-3.3 C (26.1 F)
1997-8.3 C (17.1 F)
1998-4.4 C (24.1 F)
1999-8.3 C (17.1 F)
2000-4.4 C (24.1 F)
2001-4.4 C (24.1 F)
2002-6.7 C (19.9 F)
2003-7.2 C (19.0 F)
2004-6.1 C (21.0 F)
2005-4.4 C (24.1 F)
2006-8.3 C (17.1 F)
2007-4.4 C (24.1 F)
2008-4.4 C (24.1 F)
2009-4.4 C (24.1 F)
2010-7.2 C (19.0 F)
2011-14.4 C (6.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at El Potosi by year The wettest day of the year at El Potosi, 1956 to 2011. The record is 122.9 mm (4.8 in) in 1988, marked on the chart; the median year is 34.8 mm (1.4 in). 050100150196019701980199020002010Record: 122.9 mm (4.8 in) in 1988
The wettest day of the year at El Potosi, 1956 to 2011. The record is 122.9 mm (4.8 in) in 1988, marked on the chart; the median year is 34.8 mm (1.4 in).
Wettest day (Rx1day) at El Potosi by year
YearWettest day (Rx1day)
195639.9 mm (1.6 in)
195723.9 mm (0.9 in)
195851.8 mm (2.0 in)
195934.8 mm (1.4 in)
196030.0 mm (1.2 in)
196219.8 mm (0.8 in)
196334.8 mm (1.4 in)
196466.8 mm (2.6 in)
196579.8 mm (3.1 in)
196636.8 mm (1.4 in)
196727.9 mm (1.1 in)
196829.0 mm (1.1 in)
196927.9 mm (1.1 in)
197020.6 mm (0.8 in)
197135.8 mm (1.4 in)
197219.8 mm (0.8 in)
197329.0 mm (1.1 in)
19747.9 mm (0.31 in)
197539.4 mm (1.6 in)
197653.3 mm (2.1 in)
197749.8 mm (2.0 in)
197824.9 mm (1.0 in)
197921.8 mm (0.9 in)
198022.9 mm (0.9 in)
198135.1 mm (1.4 in)
198239.9 mm (1.6 in)
198359.9 mm (2.4 in)
198451.6 mm (2.0 in)
198539.9 mm (1.6 in)
198646.0 mm (1.8 in)
198727.9 mm (1.1 in)
1988122.9 mm (4.8 in)
198923.9 mm (0.9 in)
199055.4 mm (2.2 in)
199151.8 mm (2.0 in)
199240.4 mm (1.6 in)
199328.4 mm (1.1 in)
199462.0 mm (2.4 in)
199519.3 mm (0.8 in)
199637.8 mm (1.5 in)
199727.9 mm (1.1 in)
199815.7 mm (0.6 in)
199916.8 mm (0.7 in)
200022.9 mm (0.9 in)
200130.0 mm (1.2 in)
200242.9 mm (1.7 in)
200341.9 mm (1.6 in)
200432.8 mm (1.3 in)
200562.0 mm (2.4 in)
200686.9 mm (3.4 in)
200719.8 mm (0.8 in)
200859.9 mm (2.4 in)
200955.9 mm (2.2 in)
201027.9 mm (1.1 in)
201122.9 mm (0.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at El Potosi by year The wettest five days of the year at El Potosi, 1956 to 2011. The record is 122.9 mm (4.8 in) in 1988, marked on the chart; the median year is 53.8 mm (2.1 in). 050100150196019701980199020002010Record: 122.9 mm (4.8 in) in 1988
The wettest five days of the year at El Potosi, 1956 to 2011. The record is 122.9 mm (4.8 in) in 1988, marked on the chart; the median year is 53.8 mm (2.1 in).
Wettest five days (Rx5day) at El Potosi by year
YearWettest five days (Rx5day)
195643.7 mm (1.7 in)
195745.6 mm (1.8 in)
195872.1 mm (2.8 in)
195942.7 mm (1.7 in)
196049.8 mm (2.0 in)
196238.4 mm (1.5 in)
1963101.2 mm (4.0 in)
196493.5 mm (3.7 in)
196579.8 mm (3.1 in)
196666.6 mm (2.6 in)
196732.7 mm (1.3 in)
196845.8 mm (1.8 in)
196938.3 mm (1.5 in)
197028.2 mm (1.1 in)
197185.4 mm (3.4 in)
197240.7 mm (1.6 in)
197353.8 mm (2.1 in)
197413.7 mm (0.5 in)
197583.4 mm (3.3 in)
197694.5 mm (3.7 in)
197789.7 mm (3.5 in)
197839.9 mm (1.6 in)
197929.7 mm (1.2 in)
198046.2 mm (1.8 in)
198153.1 mm (2.1 in)
198259.0 mm (2.3 in)
198359.9 mm (2.4 in)
198494.0 mm (3.7 in)
198546.7 mm (1.8 in)
198661.7 mm (2.4 in)
198757.4 mm (2.3 in)
1988122.9 mm (4.8 in)
198932.8 mm (1.3 in)
199087.2 mm (3.4 in)
199155.7 mm (2.2 in)
199290.0 mm (3.5 in)
199340.2 mm (1.6 in)
199471.7 mm (2.8 in)
199536.6 mm (1.4 in)
199640.4 mm (1.6 in)
199754.6 mm (2.1 in)
199829.7 mm (1.2 in)
199929.5 mm (1.2 in)
200022.9 mm (0.9 in)
200143.8 mm (1.7 in)
200253.9 mm (2.1 in)
200357.6 mm (2.3 in)
200445.8 mm (1.8 in)
200572.6 mm (2.9 in)
2006118.3 mm (4.7 in)
200741.4 mm (1.6 in)
2008113.5 mm (4.5 in)
200969.6 mm (2.7 in)
201055.4 mm (2.2 in)
201122.9 mm (0.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at El Potosi by year The longest dry spell of the year at El Potosi, 1956 to 2011. The record is 108 days in 2009, marked on the chart; the median year is 54 days. 255075100125196019701980199020002010Record: 108 days in 2009
The longest dry spell of the year at El Potosi, 1956 to 2011. The record is 108 days in 2009, marked on the chart; the median year is 54 days.
Longest dry spell (CDD) at El Potosi by year
YearLongest dry spell (CDD)
195632 days
195740 days
195838 days
195958 days
196056 days
196232 days
196354 days
196490 days
196556 days
196650 days
196755 days
196832 days
196951 days
197066 days
197150 days
197227 days
197346 days
197451 days
197558 days
197642 days
197756 days
197860 days
197943 days
198072 days
198136 days
198256 days
198380 days
198461 days
198547 days
198658 days
198747 days
198845 days
198959 days
199047 days
199157 days
199236 days
199382 days
199446 days
199536 days
199678 days
199750 days
199870 days
199957 days
200067 days
200149 days
200252 days
200358 days
200431 days
200549 days
200672 days
200745 days
2008102 days
2009108 days
201061 days
201191 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.

Frost Dates and Growing Season

27 years with a frost

Across 27 years with a frost, the median last spring frost at El Potosi falls on 6 March and the median first autumn frost on 1 November, which leaves a median of 241 days between them.

Fitted over all years, the growing season changes by -7.6 days per decade at this station.

Frost dates and growing season at El Potosi
MeasureMedian, all yearsEarliest periodRecent period (1965 to 2011)Recent against earliestFitted trend
Last spring frost6 Marchn/a6 Marchn/a+6.3 days per decade
First autumn frost1 Novembern/a1 Novembern/a-1.3 days per decade
Growing days241 daysn/a241 daysn/a-7.6 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

39 years, 1957 to 2011

A day with at least 36.6 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 124.0 mm (4.9 in) of rain is expected about once in 100 years.

Rainfall return levels at El Potosi: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years36.6 mm (1.4 in)
5 years55.4 mm (2.2 in)
10 years69.4 mm (2.7 in)
25 years89.4 mm (3.5 in)
50 years105.9 mm (4.2 in)Longer than the 39 years of record
100 years124.0 mm (4.9 in)Longer than the 39 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, 39 years of values from 1957 to 2011.

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: 122.9 mm (4.8 in) in 1988; 86.9 mm (3.4 in) in 2006; 79.8 mm (3.1 in) in 1965.

Download the Data

  • Data for El Potosi standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for El Potosi threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

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