Built 2026-10-19 (19 October 2026)

Arperos Weather Records (MXN00011135)

Record envelope, standing records and threshold days for Arperos (MXN00011135), Mexico, with 36 years of record.

Key Facts for Arperos

  • Arperos (MXN00011135) is a weather station in Mexico at 21.10 latitude and -101.38 longitude, 1,992 m (6,535 ft) above sea level.
  • The station reports from 1977 to 2012, 36 years of record.
  • 1,464 records set at Arperos still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Arperos tied a daily record high maximum temperature of 28.9 C (84.0 F) on 25 December 2012.

About the Station

  • Location: Mexico, 21.10 latitude, -101.38 longitude.
  • Elevation: 1,992 m (6,535 ft).
  • Period of record: 1977 to 2012, 36 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Arperos, with 2026 drawn through them The band shows the record high and record low for each calendar day at Arperos. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -10010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Arperos. 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 Arperos, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan30.0 C (86.0 F)-4.4 C (24.1 F)n/an/a
Feb30.6 C (87.1 F)-5.0 C (23.0 F)n/an/a
Mar33.9 C (93.0 F)-3.3 C (26.1 F)n/an/a
Apr35.0 C (95.0 F)1.7 C (35.1 F)n/an/a
May37.8 C (100.0 F)2.8 C (37.0 F)n/an/a
Jun37.8 C (100.0 F)5.0 C (41.0 F)n/an/a
Jul36.1 C (97.0 F)6.7 C (44.1 F)n/an/a
Aug35.6 C (96.1 F)2.2 C (36.0 F)n/an/a
Sep35.6 C (96.1 F)2.8 C (37.0 F)n/an/a
Oct32.8 C (91.0 F)0.0 C (32.0 F)n/an/a
Nov31.7 C (89.1 F)-5.0 C (23.0 F)n/an/a
Dec35.0 C (95.0 F)-5.0 C (23.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Arperos by the year they were set 1,464 records at Arperos still stand. 1995 holds the most, with 288. 01002003001977: 11978: 291979: 1141980: 381981: 281982: 381983: 911984: 401985: 341986: 221987: 61988: 141989: 151990: 271991: 341993: 471994: 81995: 2881997: 331998: 551999: 542000: 142001: 272002: 202003: 132004: 122005: 242006: 222007: 342008: 362009: 292010: 1202011: 702012: 27197719811985198919941999200320072011
1,464 records at Arperos still stand. 1995 holds the most, with 288.
Standing records at Arperos by the year they were set
Year setStanding records
19771
197829
1979114
198038
198128
198238
198391
198440
198534
198622
19876
198814
198915
199027
199134
199347
19948
1995288
199733
199855
199954
200014
200127
200220
200313
200412
200524
200622
200734
200836
200929
2010120
201170
201227

Wettest Day of Each Month

Aug: 85.6 mm (3.4 in)
Record daily precipitation for each month at Arperos The wettest day on record for each calendar month at Arperos. The most was 85.6 mm (3.4 in) on 29 August 1988. 0255075100 Jan: 46.5 mm (1.8 in), 26 January 1980 Jan Feb: 63.8 mm (2.5 in), 4 February 2010 Feb Mar: 9.1 mm (0.36 in), 12 March 2004 Mar Apr: 15.0 mm (0.6 in), 16 April 1981 Apr May: 42.9 mm (1.7 in), 14 May 2006 May Jun: 52.1 mm (2.1 in), 23 June 1986 Jun Jul: 58.7 mm (2.3 in), 1 July 1984 Jul Aug: 85.6 mm (3.4 in), 29 August 1988 Aug Sep: 68.1 mm (2.7 in), 7 September 2003 Sep Oct: 53.8 mm (2.1 in), 20 October 2002 Oct Nov: 41.1 mm (1.6 in), 4 November 2002 Nov Dec: 17.8 mm (0.7 in), 2 December 1979 Dec
The wettest day on record for each calendar month at Arperos. The most was 85.6 mm (3.4 in) on 29 August 1988.
Record daily precipitation for each month at Arperos
MonthRecord daily precipitation (mm)Date
Jan46.5 mm (1.8 in)26 January 1980
Feb63.8 mm (2.5 in)4 February 2010
Mar9.1 mm (0.36 in)12 March 2004
Apr15.0 mm (0.6 in)16 April 1981
May42.9 mm (1.7 in)14 May 2006
Jun52.1 mm (2.1 in)23 June 1986
Jul58.7 mm (2.3 in)1 July 1984
Aug85.6 mm (3.4 in)29 August 1988
Sep68.1 mm (2.7 in)7 September 2003
Oct53.8 mm (2.1 in)20 October 2002
Nov41.1 mm (1.6 in)4 November 2002
Dec17.8 mm (0.7 in)2 December 1979

Period of Record Coverage

1977 to 2012
Days with data per year at Arperos 35 years of record at Arperos, 1977 to 2012. 19 years have data for under 90 percent of days and are left out of rankings: 1977, 1978, 1980, 1981, 1986, 1987, 1988, 1989 and others. 1977: 31 of 365 days1978: 166 of 365 days1979: 360 of 365 days1980: 290 of 366 days1981: 288 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 365 of 366 days1985: 365 of 365 days1986: 297 of 365 days1987: 242 of 365 days1988: 274 of 366 days1989: 294 of 365 days1990: 365 of 365 days1991: 212 of 365 days1992: 121 of 366 days1993: 184 of 365 days1994: 241 of 365 days1995: 319 of 365 days1997: 118 of 365 days1998: 243 of 365 days1999: 306 of 365 days2000: 274 of 366 days2001: 304 of 365 days2002: 314 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 335 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 364 of 365 days2011: 365 of 365 days2012: 335 of 366 days1980198519901995200020052010
35 years of record at Arperos, 1977 to 2012. 19 years have data for under 90 percent of days and are left out of rankings: 1977, 1978, 1980, 1981, 1986, 1987, 1988, 1989 and others.
Days with data per year at Arperos
YearDays with dataShare of yearComplete
1977318%No
197816645%No
197936099%Yes
198029079%No
198128879%No
1982365100%Yes
1983365100%Yes
1984365100%Yes
1985365100%Yes
198629781%No
198724266%No
198827475%No
198929481%No
1990365100%Yes
199121258%No
199212133%No
199318450%No
199424166%No
199531987%No
199711832%No
199824367%No
199930684%No
200027475%No
200130483%No
200231486%No
2003365100%Yes
2004366100%Yes
2005365100%Yes
200633592%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010364100%Yes
2011365100%Yes
201233592%Yes

Latest Records

20
Latest records at Arperos
DateStationRecordValueBeat old record byOld record stoodSignificance
25 December 2012Arperos, MXdaily high max (Tie)28.9 C (84.0 F)tie13 years1 of 100 (Routine)
10 December 2012Arperos, MXdaily high min (Tie)8.9 C (48.0 F)tie33 years3 of 100 (Routine)
6 December 2012Arperos, MXdaily low max18.9 C (66.0 F)0.5 C (0.9 F)33 years13 of 100 (Routine)
21 November 2012Arperos, MXdaily high min11.7 C (53.1 F)1.7 C (3.1 F)30 years17 of 100 (Routine)
14 November 2012Arperos, MXdaily high min (Tie)10.6 C (51.1 F)tie19 years2 of 100 (Routine)
11 November 2012Arperos, MXdaily high min (Tie)10.6 C (51.1 F)tie19 years2 of 100 (Routine)
5 October 2012Arperos, MXdaily low min5.0 C (41.0 F)0.6 C (1.1 F)15 years9 of 100 (Routine)
3 October 2012Arperos, MXdaily low min5.6 C (42.1 F)1.6 C (2.9 F)15 years12 of 100 (Routine)
28 September 2012Arperos, MXdaily low max (Tie)22.8 C (73.0 F)tie28 years2 of 100 (Routine)
19 September 2012Arperos, MXdaily low min (Tie)8.9 C (48.0 F)tie4 years1 of 100 (Routine)
8 September 2012Arperos, MXdaily high min (Tie)15.0 C (59.0 F)tie29 years2 of 100 (Routine)
5 September 2012Arperos, MXdaily low min6.7 C (44.1 F)1.1 C (2.0 F)15 years11 of 100 (Routine)
25 August 2012Arperos, MXdaily high min (Tie)15.6 C (60.1 F)tie31 years3 of 100 (Routine)
20 August 2012Arperos, MXdaily low max22.8 C (73.0 F)0.5 C (0.9 F)17 years9 of 100 (Routine)
15 August 2012Arperos, MXdaily high min (Tie)15.0 C (59.0 F)tie31 years3 of 100 (Routine)
12 August 2012Arperos, MXdaily high min (Tie)15.0 C (59.0 F)tie11 years1 of 100 (Routine)
9 August 2012Arperos, MXdaily high min16.7 C (62.1 F)2.3 C (4.1 F)34 years23 of 100 (Routine)
8 August 2012Arperos, MXdaily high min15.6 C (60.1 F)1.2 C (2.2 F)34 years18 of 100 (Routine)
21 July 2012Arperos, MXdaily low max20.0 C (68.0 F)1.1 C (2.0 F)34 years16 of 100 (Routine)
15 July 2012Arperos, MXdaily low max20.0 C (68.0 F)0.6 C (1.1 F)28 years12 of 100 (Routine)

Climate Trend

14 complete years, 1979 to 2011
Annual mean temperature at Arperos as warming stripes, 1979 to 2011 One stripe for each of 14 complete years at Arperos, 1979 to 2011. Blue stripes are years cooler than the station's own mean of 17.2 C (62.9 F); red stripes are warmer. The coolest year was 2011, at 15.4 C (59.8 F), and the warmest was 1990, at 18.6 C (65.4 F). The strongest colour marks a difference of 1.8 C (3.2 F). 1979: 17.3 C, +0.1 C from the station mean1982: 18.0 C, +0.9 C from the station mean1983: 17.4 C, +0.2 C from the station mean1984: 16.4 C, -0.7 C from the station mean1985: 16.7 C, -0.5 C from the station mean1990: 18.6 C, +1.4 C from the station mean2003: 17.9 C, +0.7 C from the station mean2004: 17.5 C, +0.3 C from the station mean2005: 18.3 C, +1.1 C from the station mean2007: 16.9 C, -0.2 C from the station mean2008: 15.8 C, -1.3 C from the station mean2009: 17.3 C, +0.2 C from the station mean2010: 16.6 C, -0.5 C from the station mean2011: 15.4 C, -1.7 C from the station mean1979198519901995200020052010
One stripe for each of 14 complete years at Arperos, 1979 to 2011. Blue stripes are years cooler than the station's own mean of 17.2 C (62.9 F); red stripes are warmer. The coolest year was 2011, at 15.4 C (59.8 F), and the warmest was 1990, at 18.6 C (65.4 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Arperos as warming stripes, 1979 to 2011
YearAnnual mean temperatureDifference from the station mean
197917.3 C+0.12 C
198218.0 C+0.86 C
198317.4 C+0.24 C
198416.4 C-0.71 C
198516.7 C-0.45 C
199018.6 C+1.42 C
200317.9 C+0.74 C
200417.5 C+0.34 C
200518.3 C+1.13 C
200716.9 C-0.22 C
200815.8 C-1.33 C
200917.3 C+0.17 C
201016.6 C-0.52 C
201115.4 C-1.72 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

1977 to 2012
Yearly extremes at Arperos: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.8 C (100.0 F)198033.9 C (93.0 F)35
Coldest night (TNn)-5.0 C (23.0 F)2010-1.1 C (30.0 F)35
Wettest day (Rx1day)85.6 mm (3.4 in)198839.9 mm (1.6 in)34
Wettest five days (Rx5day)229.5 mm (9.0 in)200388.5 mm (3.5 in)34
Longest dry spell (CDD)159 days199873 days34

Hottest day (TXx)

Hottest day (TXx) at Arperos by year The hottest day of the year at Arperos, 1977 to 2012. The record is 37.8 C (100.0 F) in 1980, marked on the chart; the median year is 33.9 C (93.0 F). 253035401980199020002010Record: 37.8 C (100.0 F) in 1980
The hottest day of the year at Arperos, 1977 to 2012. The record is 37.8 C (100.0 F) in 1980, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Arperos by year
YearHottest day (TXx)
197726.7 C (80.1 F)
197828.9 C (84.0 F)
197935.0 C (95.0 F)
198037.8 C (100.0 F)
198136.7 C (98.1 F)
198235.0 C (95.0 F)
198337.2 C (99.0 F)
198434.4 C (93.9 F)
198535.0 C (95.0 F)
198632.2 C (90.0 F)
198731.7 C (89.1 F)
198834.4 C (93.9 F)
198932.2 C (90.0 F)
199033.9 C (93.0 F)
199136.1 C (97.0 F)
199230.0 C (86.0 F)
199332.2 C (90.0 F)
199433.9 C (93.0 F)
199535.0 C (95.0 F)
199735.0 C (95.0 F)
199832.8 C (91.0 F)
199937.8 C (100.0 F)
200035.0 C (95.0 F)
200135.0 C (95.0 F)
200231.7 C (89.1 F)
200335.0 C (95.0 F)
200432.8 C (91.0 F)
200535.0 C (95.0 F)
200630.6 C (87.1 F)
200732.8 C (91.0 F)
200832.8 C (91.0 F)
200931.7 C (89.1 F)
201035.6 C (96.1 F)
201131.7 C (89.1 F)
201230.6 C (87.1 F)

Coldest night (TNn)

Coldest night (TNn) at Arperos by year The coldest night of the year at Arperos, 1977 to 2012. The record is -5.0 C (23.0 F) in 2010, marked on the chart; the median year is -1.1 C (30.0 F). -505101980199020002010Record: -5.0 C (23.0 F) in 2010
The coldest night of the year at Arperos, 1977 to 2012. The record is -5.0 C (23.0 F) in 2010, marked on the chart; the median year is -1.1 C (30.0 F).
Coldest night (TNn) at Arperos by year
YearColdest night (TNn)
1977-2.8 C (27.0 F)
19781.7 C (35.1 F)
19790.0 C (32.0 F)
19800.0 C (32.0 F)
19810.6 C (33.1 F)
1982-1.7 C (28.9 F)
1983-3.9 C (25.0 F)
1984-2.2 C (28.0 F)
1985-3.9 C (25.0 F)
1986-2.2 C (28.0 F)
1987-3.3 C (26.1 F)
19881.7 C (35.1 F)
19890.0 C (32.0 F)
1990-4.4 C (24.1 F)
19910.0 C (32.0 F)
19925.6 C (42.1 F)
19930.6 C (33.1 F)
19943.9 C (39.0 F)
19950.6 C (33.1 F)
19971.7 C (35.1 F)
1998-1.1 C (30.0 F)
19990.6 C (33.1 F)
20000.0 C (32.0 F)
2001-1.1 C (30.0 F)
20020.6 C (33.1 F)
2003-2.2 C (28.0 F)
2004-1.1 C (30.0 F)
2005-0.6 C (30.9 F)
2006-3.3 C (26.1 F)
2007-2.2 C (28.0 F)
2008-2.2 C (28.0 F)
2009-2.2 C (28.0 F)
2010-5.0 C (23.0 F)
2011-5.0 C (23.0 F)
2012-3.3 C (26.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Arperos by year The wettest day of the year at Arperos, 1977 to 2012. The record is 85.6 mm (3.4 in) in 1988, marked on the chart; the median year is 39.9 mm (1.6 in). 02550751001980199020002010Record: 85.6 mm (3.4 in) in 1988
The wettest day of the year at Arperos, 1977 to 2012. The record is 85.6 mm (3.4 in) in 1988, marked on the chart; the median year is 39.9 mm (1.6 in).
Wettest day (Rx1day) at Arperos by year
YearWettest day (Rx1day)
19774.8 mm (0.19 in)
197833.8 mm (1.3 in)
197924.9 mm (1.0 in)
198046.5 mm (1.8 in)
198158.2 mm (2.3 in)
198229.5 mm (1.2 in)
198340.6 mm (1.6 in)
198458.7 mm (2.3 in)
198539.9 mm (1.6 in)
198652.1 mm (2.1 in)
198711.4 mm (0.4 in)
198885.6 mm (3.4 in)
198929.2 mm (1.1 in)
199042.9 mm (1.7 in)
1991n/a
19920.0 mm (0.00 in)
19933.8 mm (0.15 in)
199430.0 mm (1.2 in)
199531.0 mm (1.2 in)
199739.9 mm (1.6 in)
199823.9 mm (0.9 in)
199919.1 mm (0.8 in)
200040.4 mm (1.6 in)
200131.8 mm (1.3 in)
200254.9 mm (2.2 in)
200377.2 mm (3.0 in)
200449.8 mm (2.0 in)
200554.9 mm (2.2 in)
200653.8 mm (2.1 in)
200732.8 mm (1.3 in)
200859.2 mm (2.3 in)
200964.0 mm (2.5 in)
201063.8 mm (2.5 in)
201122.1 mm (0.9 in)
201239.9 mm (1.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Arperos by year The wettest five days of the year at Arperos, 1977 to 2012. The record is 229.5 mm (9.0 in) in 2003, marked on the chart; the median year is 88.5 mm (3.5 in). 01002003001980199020002010Record: 229.5 mm (9.0 in) in 2003
The wettest five days of the year at Arperos, 1977 to 2012. The record is 229.5 mm (9.0 in) in 2003, marked on the chart; the median year is 88.5 mm (3.5 in).
Wettest five days (Rx5day) at Arperos by year
YearWettest five days (Rx5day)
19774.8 mm (0.19 in)
197875.4 mm (3.0 in)
197959.4 mm (2.3 in)
198098.8 mm (3.9 in)
1981104.5 mm (4.1 in)
198267.2 mm (2.6 in)
1983112.8 mm (4.4 in)
1984144.5 mm (5.7 in)
1985102.3 mm (4.0 in)
1986112.5 mm (4.4 in)
198712.2 mm (0.5 in)
1988146.1 mm (5.8 in)
198958.9 mm (2.3 in)
199070.9 mm (2.8 in)
1991n/a
19920.0 mm (0.00 in)
19938.4 mm (0.33 in)
199455.4 mm (2.2 in)
199568.9 mm (2.7 in)
1997109.8 mm (4.3 in)
199846.3 mm (1.8 in)
199924.3 mm (1.0 in)
200089.9 mm (3.5 in)
200187.0 mm (3.4 in)
2002129.6 mm (5.1 in)
2003229.5 mm (9.0 in)
2004149.9 mm (5.9 in)
2005134.1 mm (5.3 in)
2006102.9 mm (4.1 in)
200773.5 mm (2.9 in)
2008164.4 mm (6.5 in)
2009113.4 mm (4.5 in)
2010114.6 mm (4.5 in)
201138.3 mm (1.5 in)
201262.6 mm (2.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Arperos by year The longest dry spell of the year at Arperos, 1977 to 2012. The record is 159 days in 1998, marked on the chart; the median year is 73 days. 0501001502001980199020002010Record: 159 days in 1998
The longest dry spell of the year at Arperos, 1977 to 2012. The record is 159 days in 1998, marked on the chart; the median year is 73 days.
Longest dry spell (CDD) at Arperos by year
YearLongest dry spell (CDD)
197744 days
197884 days
197963 days
198034 days
198161 days
198254 days
198372 days
198468 days
198548 days
198652 days
198793 days
1988144 days
1989141 days
1990109 days
1991n/a
199292 days
199326 days
199431 days
199561 days
199750 days
1998159 days
1999102 days
2000126 days
200168 days
200266 days
2003124 days
200474 days
2005146 days
2006132 days
200750 days
200876 days
200962 days
2010100 days
2011101 days
201275 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.

Download the Data

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