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San Juan del Meco Weather Records (MXN00024068)

Record envelope, standing records and threshold days for San Juan del Meco (MXN00024068), Mexico, with 51 years of record.

Key Facts for San Juan del Meco

  • San Juan del Meco (MXN00024068) is a weather station in Mexico at 22.62 latitude and -99.62 longitude, 1,149 m (3,769 ft) above sea level.
  • The station reports from 1961 to 2011, 51 years of record.
  • 1,464 records set at San Juan del Meco still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • San Juan del Meco set a monthly record daily precipitation of 239.8 mm (9.4 in) on 30 June 2011.

About the Station

  • Location: Mexico, 22.62 latitude, -99.62 longitude.
  • Elevation: 1,149 m (3,769 ft).
  • Period of record: 1961 to 2011, 51 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 Juan del Meco, with 2026 drawn through them The band shows the record high and record low for each calendar day at San Juan del Meco. 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 San Juan del Meco. 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 Juan del Meco, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan30.6 C (87.1 F)-6.1 C (21.0 F)n/an/a
Feb35.0 C (95.0 F)-5.0 C (23.0 F)n/an/a
Mar38.3 C (100.9 F)-0.6 C (30.9 F)n/an/a
Apr41.7 C (107.1 F)3.9 C (39.0 F)n/an/a
May45.0 C (113.0 F)5.6 C (42.1 F)n/an/a
Jun40.0 C (104.0 F)10.0 C (50.0 F)n/an/a
Jul35.6 C (96.1 F)10.0 C (50.0 F)n/an/a
Aug33.3 C (91.9 F)7.8 C (46.0 F)n/an/a
Sep33.9 C (93.0 F)6.7 C (44.1 F)n/an/a
Oct35.0 C (95.0 F)1.7 C (35.1 F)n/an/a
Nov31.7 C (89.1 F)-5.0 C (23.0 F)n/an/a
Dec31.7 C (89.1 F)-4.4 C (24.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at San Juan del Meco by the year they were set 1,464 records at San Juan del Meco still stand. 1970 holds the most, with 55. 02040601961: 461962: 391963: 221964: 401965: 281966: 501967: 441968: 331969: 411970: 551971: 331972: 341973: 481974: 351975: 281976: 331977: 281978: 241979: 491980: 501981: 281982: 521983: 521984: 261985: 161986: 191987: 331988: 171989: 191990: 21991: 231992: 161993: 251994: 321995: 341996: 341997: 251998: 501999: 142000: 212001: 262002: 292003: 412004: 232005: 192006: 102007: 102008: 81961196619711976198119861991199620012006
1,464 records at San Juan del Meco still stand. 1970 holds the most, with 55.
Standing records at San Juan del Meco by the year they were set
Year setStanding records
196146
196239
196322
196440
196528
196650
196744
196833
196941
197055
197133
197234
197348
197435
197528
197633
197728
197824
197949
198050
198128
198252
198352
198426
198516
198619
198733
198817
198919
19902
199123
199216
199325
199432
199534
199634
199725
199850
199914
200021
200126
200229
200341
200423
200519
200610
200710
20088

Wettest Day of Each Month

Sep: 297.4 mm (11.7 in)
Record daily precipitation for each month at San Juan del Meco The wettest day on record for each calendar month at San Juan del Meco. The most was 297.4 mm (11.7 in) on 2 September 1977. 0100200300 Jan: 34.8 mm (1.4 in), 22 January 1989 Jan Feb: 38.9 mm (1.5 in), 4 February 2007 Feb Mar: 24.9 mm (1.0 in), 21 March 1982 Mar Apr: 57.9 mm (2.3 in), 7 April 1997 Apr May: 71.9 mm (2.8 in), 27 May 1991 May Jun: 239.8 mm (9.4 in), 30 June 2011 Jun Jul: 135.9 mm (5.4 in), 8 July 2008 Jul Aug: 164.8 mm (6.5 in), 22 August 2007 Aug Sep: 297.4 mm (11.7 in), 2 September 1977 Sep Oct: 175.8 mm (6.9 in), 10 October 1966 Oct Nov: 56.9 mm (2.2 in), 27 November 1986 Nov Dec: 96.8 mm (3.8 in), 3 December 1979 Dec
The wettest day on record for each calendar month at San Juan del Meco. The most was 297.4 mm (11.7 in) on 2 September 1977.
Record daily precipitation for each month at San Juan del Meco
MonthRecord daily precipitation (mm)Date
Jan34.8 mm (1.4 in)22 January 1989
Feb38.9 mm (1.5 in)4 February 2007
Mar24.9 mm (1.0 in)21 March 1982
Apr57.9 mm (2.3 in)7 April 1997
May71.9 mm (2.8 in)27 May 1991
Jun239.8 mm (9.4 in)30 June 2011
Jul135.9 mm (5.4 in)8 July 2008
Aug164.8 mm (6.5 in)22 August 2007
Sep297.4 mm (11.7 in)2 September 1977
Oct175.8 mm (6.9 in)10 October 1966
Nov56.9 mm (2.2 in)27 November 1986
Dec96.8 mm (3.8 in)3 December 1979

Period of Record Coverage

1961 to 2008
Days with data per year at San Juan del Meco 48 years of record at San Juan del Meco, 1961 to 2008. 7 years have data for under 90 percent of days and are left out of rankings: 1969, 1990, 1999, 2000, 2006, 2007, 2008. 1961: 358 of 365 days1962: 362 of 365 days1963: 363 of 365 days1964: 364 of 366 days1965: 361 of 365 days1966: 355 of 365 days1967: 359 of 365 days1968: 361 of 366 days1969: 327 of 365 days1970: 363 of 365 days1971: 363 of 365 days1972: 364 of 366 days1973: 362 of 365 days1974: 364 of 365 days1975: 361 of 365 days1976: 359 of 366 days1977: 364 of 365 days1978: 360 of 365 days1979: 362 of 365 days1980: 364 of 366 days1981: 364 of 365 days1982: 365 of 365 days1983: 364 of 365 days1984: 334 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 363 of 365 days1988: 366 of 366 days1989: 335 of 365 days1990: 31 of 365 days1991: 363 of 365 days1992: 364 of 366 days1993: 363 of 365 days1994: 365 of 365 days1995: 362 of 365 days1996: 364 of 366 days1997: 364 of 365 days1998: 365 of 365 days1999: 304 of 365 days2000: 329 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 362 of 365 days2004: 364 of 366 days2005: 364 of 365 days2006: 121 of 365 days2007: 182 of 365 days2008: 59 of 366 days1970198019902000
48 years of record at San Juan del Meco, 1961 to 2008. 7 years have data for under 90 percent of days and are left out of rankings: 1969, 1990, 1999, 2000, 2006, 2007, 2008.
Days with data per year at San Juan del Meco
YearDays with dataShare of yearComplete
196135898%Yes
196236299%Yes
196336399%Yes
196436499%Yes
196536199%Yes
196635597%Yes
196735998%Yes
196836199%Yes
196932790%No
197036399%Yes
197136399%Yes
197236499%Yes
197336299%Yes
1974364100%Yes
197536199%Yes
197635998%Yes
1977364100%Yes
197836099%Yes
197936299%Yes
198036499%Yes
1981364100%Yes
1982365100%Yes
1983364100%Yes
198433491%Yes
1985365100%Yes
1986365100%Yes
198736399%Yes
1988366100%Yes
198933592%Yes
1990318%No
199136399%Yes
199236499%Yes
199336399%Yes
1994365100%Yes
199536299%Yes
199636499%Yes
1997364100%Yes
1998365100%Yes
199930483%No
200032990%No
2001365100%Yes
2002365100%Yes
200336299%Yes
200436499%Yes
2005364100%Yes
200612133%No
200718250%No
20085916%No

Latest Records

20
Latest records at San Juan del Meco
DateStationRecordValueBeat old record byOld record stoodSignificance
30 June 2011San Juan del Meco, MXmonthly rain239.8 mm (9.4 in)104.9 mm (4.1 in)50 years70 of 100 (Major)
25 June 2011San Juan del Meco, MXdaily rain56.9 mm (2.2 in)1.0 mm (0.04 in)44 years18 of 100 (Routine)
4 June 2011San Juan del Meco, MXdaily rain9.9 mm (0.39 in)0.5 mm (0.02 in)0 years5 of 100 (Routine)
19 September 2010San Juan del Meco, MXdaily rain47.0 mm (1.9 in)9.2 mm (0.36 in)24 years15 of 100 (Routine)
29 July 2010San Juan del Meco, MXdaily rain40.9 mm (1.6 in)3.1 mm (0.12 in)23 years12 of 100 (Routine)
28 July 2010San Juan del Meco, MXdaily rain81.8 mm (3.2 in)57.7 mm (2.3 in)41 years49 of 100 (Notable)
23 July 2010San Juan del Meco, MXdaily rain86.9 mm (3.4 in)41.9 mm (1.6 in)24 years35 of 100 (Notable)
4 June 2010San Juan del Meco, MXdaily rain9.4 mm (0.37 in)1.5 mm (0.06 in)39 years16 of 100 (Routine)
9 April 2010San Juan del Meco, MXdaily rain4.8 mm (0.19 in)4.8 mm (0.19 in)48 years20 of 100 (Routine)
15 February 2010San Juan del Meco, MXdaily rain11.9 mm (0.5 in)2.0 mm (0.08 in)42 years19 of 100 (Routine)
14 February 2010San Juan del Meco, MXdaily rain9.9 mm (0.39 in)9.1 mm (0.36 in)34 years20 of 100 (Routine)
3 February 2010San Juan del Meco, MXdaily rain9.7 mm (0.38 in)3.9 mm (0.15 in)18 years15 of 100 (Routine)
2 February 2010San Juan del Meco, MXdaily rain25.4 mm (1.0 in)23.1 mm (0.9 in)4 years37 of 100 (Notable)
31 January 2010San Juan del Meco, MXdaily rain11.4 mm (0.4 in)2.5 mm (0.10 in)46 years20 of 100 (Routine)
14 January 2010San Juan del Meco, MXdaily rain25.4 mm (1.0 in)21.8 mm (0.9 in)34 years46 of 100 (Notable)
16 December 2009San Juan del Meco, MXdaily rain34.8 mm (1.4 in)33.5 mm (1.3 in)44 years48 of 100 (Notable)
26 October 2009San Juan del Meco, MXdaily rain32.8 mm (1.3 in)21.4 mm (0.8 in)8 years17 of 100 (Routine)
22 July 2009San Juan del Meco, MXdaily rain50.8 mm (2.0 in)31.0 mm (1.2 in)36 years32 of 100 (Routine)
29 May 2009San Juan del Meco, MXdaily rain14.0 mm (0.6 in)4.6 mm (0.18 in)2 years8 of 100 (Routine)
27 October 2008San Juan del Meco, MXdaily rain13.0 mm (0.5 in)6.1 mm (0.24 in)5 years8 of 100 (Routine)

Climate Trend

39 complete years, 1961 to 2005
Annual mean temperature at San Juan del Meco as warming stripes, 1961 to 2005 One stripe for each of 39 complete years at San Juan del Meco, 1961 to 2005. Blue stripes are years cooler than the station's own mean of 18.6 C (65.6 F); red stripes are warmer. The coolest year was 1966, at 16.7 C (62.0 F), and the warmest was 1995, at 20.5 C (68.9 F). The strongest colour marks a difference of 2.0 C (3.6 F). 1961: 18.0 C, -0.6 C from the station mean1962: 18.1 C, -0.5 C from the station mean1963: 17.7 C, -1.0 C from the station mean1964: 18.0 C, -0.6 C from the station mean1965: 17.8 C, -0.8 C from the station mean1966: 16.7 C, -2.0 C from the station mean1967: 17.3 C, -1.4 C from the station mean1968: 17.1 C, -1.6 C from the station mean1970: 17.5 C, -1.1 C from the station mean1971: 18.2 C, -0.5 C from the station mean1972: 18.1 C, -0.5 C from the station mean1973: 18.2 C, -0.5 C from the station mean1974: 17.6 C, -1.0 C from the station mean1975: 18.0 C, -0.6 C from the station mean1976: 17.0 C, -1.7 C from the station mean1977: 18.2 C, -0.4 C from the station mean1978: 18.1 C, -0.6 C from the station mean1979: 18.9 C, +0.2 C from the station mean1980: 19.3 C, +0.6 C from the station mean1981: 19.2 C, +0.6 C from the station mean1982: 19.6 C, +1.0 C from the station mean1983: 19.4 C, +0.7 C from the station mean1985: 18.8 C, +0.2 C from the station mean1986: 19.2 C, +0.5 C from the station mean1987: 18.0 C, -0.7 C from the station mean1988: 18.2 C, -0.4 C from the station mean1991: 19.4 C, +0.7 C from the station mean1992: 18.6 C, 0.0 C from the station mean1993: 19.2 C, +0.5 C from the station mean1994: 20.1 C, +1.5 C from the station mean1995: 20.5 C, +1.9 C from the station mean1996: 19.4 C, +0.8 C from the station mean1997: 19.2 C, +0.6 C from the station mean1998: 20.5 C, +1.8 C from the station mean2001: 20.1 C, +1.5 C from the station mean2002: 19.5 C, +0.9 C from the station mean2003: 19.8 C, +1.1 C from the station mean2004: 19.1 C, +0.5 C from the station mean2005: 19.7 C, +1.0 C from the station mean1961196519701975198019851990199520002005
One stripe for each of 39 complete years at San Juan del Meco, 1961 to 2005. Blue stripes are years cooler than the station's own mean of 18.6 C (65.6 F); red stripes are warmer. The coolest year was 1966, at 16.7 C (62.0 F), and the warmest was 1995, at 20.5 C (68.9 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at San Juan del Meco as warming stripes, 1961 to 2005
YearAnnual mean temperatureDifference from the station mean
196118.0 C-0.63 C
196218.1 C-0.53 C
196317.7 C-0.96 C
196418.0 C-0.62 C
196517.8 C-0.82 C
196616.7 C-1.98 C
196717.3 C-1.37 C
196817.1 C-1.55 C
197017.5 C-1.13 C
197118.2 C-0.47 C
197218.1 C-0.54 C
197318.2 C-0.49 C
197417.6 C-1.02 C
197518.0 C-0.64 C
197617.0 C-1.66 C
197718.2 C-0.42 C
197818.1 C-0.57 C
197918.9 C+0.21 C
198019.3 C+0.61 C
198119.2 C+0.58 C
198219.6 C+0.97 C
198319.4 C+0.72 C
198518.8 C+0.19 C
198619.2 C+0.53 C
198718.0 C-0.68 C
198818.2 C-0.43 C
199119.4 C+0.75 C
199218.6 C-0.02 C
199319.2 C+0.55 C
199420.1 C+1.50 C
199520.5 C+1.87 C
199619.4 C+0.78 C
199719.2 C+0.57 C
199820.5 C+1.85 C
200120.1 C+1.48 C
200219.5 C+0.89 C
200319.8 C+1.15 C
200419.1 C+0.50 C
200519.7 C+1.01 C

The annual mean temperature here has risen by 0.6 C (0.4 to 0.7) per decade over 1961 to 2005. In Fahrenheit: 1.1 F (0.8 to 1.3) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at San Juan del Meco
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.6 C (0.4 to 0.7) per decade1.1 F (0.8 to 1.3) per decade1961 to 200539Rise
Mean daily maximum0.6 C (0.4 to 0.8) per decade1.1 F (0.7 to 1.5) per decade1961 to 200539Rise
Mean daily minimum0.6 C (0.5 to 0.7) per decade1.0 F (0.9 to 1.2) per decade1961 to 200539Rise

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

1961 to 2011
Yearly extremes at San Juan del Meco: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.0 C (113.0 F)197336.7 C (98.1 F)48
Coldest night (TNn)-6.1 C (21.0 F)19620.0 C (32.0 F)48
Wettest day (Rx1day)297.4 mm (11.7 in)197780.8 mm (3.2 in)51
Wettest five days (Rx5day)421.5 mm (16.6 in)1993158.5 mm (6.2 in)51
Longest dry spell (CDD)179 days199878 days51

Hottest day (TXx)

Hottest day (TXx) at San Juan del Meco by year The hottest day of the year at San Juan del Meco, 1961 to 2011. The record is 45.0 C (113.0 F) in 1973, marked on the chart; the median year is 36.7 C (98.1 F). 2030405019701980199020002010Record: 45.0 C (113.0 F) in 1973
The hottest day of the year at San Juan del Meco, 1961 to 2011. The record is 45.0 C (113.0 F) in 1973, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at San Juan del Meco by year
YearHottest day (TXx)
196138.9 C (102.0 F)
196235.0 C (95.0 F)
196335.0 C (95.0 F)
196437.8 C (100.0 F)
196535.0 C (95.0 F)
196632.2 C (90.0 F)
196735.0 C (95.0 F)
196834.4 C (93.9 F)
196936.1 C (97.0 F)
197036.7 C (98.1 F)
197138.3 C (100.9 F)
197235.6 C (96.1 F)
197345.0 C (113.0 F)
197437.8 C (100.0 F)
197536.7 C (98.1 F)
197633.9 C (93.0 F)
197736.1 C (97.0 F)
197836.7 C (98.1 F)
197937.2 C (99.0 F)
198038.9 C (102.0 F)
198136.1 C (97.0 F)
198239.4 C (102.9 F)
198338.9 C (102.0 F)
198440.0 C (104.0 F)
198538.3 C (100.9 F)
198633.9 C (93.0 F)
198735.0 C (95.0 F)
198830.6 C (87.1 F)
198937.8 C (100.0 F)
199030.0 C (86.0 F)
199138.9 C (102.0 F)
199233.3 C (91.9 F)
199335.6 C (96.1 F)
199435.0 C (95.0 F)
199540.6 C (105.1 F)
199635.0 C (95.0 F)
199735.6 C (96.1 F)
199840.6 C (105.1 F)
199937.8 C (100.0 F)
200035.6 C (96.1 F)
200138.3 C (100.9 F)
200239.4 C (102.9 F)
200344.4 C (111.9 F)
200437.2 C (99.0 F)
200541.7 C (107.1 F)
200635.0 C (95.0 F)
200736.7 C (98.1 F)
200821.7 C (71.1 F)
2009n/a
2010n/a
2011n/a

Coldest night (TNn)

Coldest night (TNn) at San Juan del Meco by year The coldest night of the year at San Juan del Meco, 1961 to 2011. The record is -6.1 C (21.0 F) in 1962, marked on the chart; the median year is 0.0 C (32.0 F). -7.5-5-2.502.5519701980199020002010Record: -6.1 C (21.0 F) in 1962
The coldest night of the year at San Juan del Meco, 1961 to 2011. The record is -6.1 C (21.0 F) in 1962, marked on the chart; the median year is 0.0 C (32.0 F).
Coldest night (TNn) at San Juan del Meco by year
YearColdest night (TNn)
19610.0 C (32.0 F)
1962-6.1 C (21.0 F)
1963-2.2 C (28.0 F)
1964-2.2 C (28.0 F)
1965-1.7 C (28.9 F)
19660.0 C (32.0 F)
1967-1.7 C (28.9 F)
19680.0 C (32.0 F)
1969-3.3 C (26.1 F)
1970-5.0 C (23.0 F)
1971-1.1 C (30.0 F)
19720.0 C (32.0 F)
1973-5.0 C (23.0 F)
1974-5.0 C (23.0 F)
1975-5.0 C (23.0 F)
1976-4.4 C (24.1 F)
19770.0 C (32.0 F)
1978-3.3 C (26.1 F)
1979-4.4 C (24.1 F)
19800.0 C (32.0 F)
19812.8 C (37.0 F)
19820.6 C (33.1 F)
1983-2.2 C (28.0 F)
19840.6 C (33.1 F)
19850.6 C (33.1 F)
19861.1 C (34.0 F)
19870.0 C (32.0 F)
19881.1 C (34.0 F)
1989-3.3 C (26.1 F)
19903.9 C (39.0 F)
19913.9 C (39.0 F)
19920.0 C (32.0 F)
19930.0 C (32.0 F)
19940.6 C (33.1 F)
19952.8 C (37.0 F)
19961.7 C (35.1 F)
1997-3.3 C (26.1 F)
19982.8 C (37.0 F)
19990.6 C (33.1 F)
20000.6 C (33.1 F)
20012.2 C (36.0 F)
20021.7 C (35.1 F)
20030.0 C (32.0 F)
20040.0 C (32.0 F)
20053.9 C (39.0 F)
20060.6 C (33.1 F)
20071.7 C (35.1 F)
20080.6 C (33.1 F)
2009n/a
2010n/a
2011n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at San Juan del Meco by year The wettest day of the year at San Juan del Meco, 1961 to 2011. The record is 297.4 mm (11.7 in) in 1977, marked on the chart; the median year is 80.8 mm (3.2 in). 010020030019701980199020002010Record: 297.4 mm (11.7 in) in 1977
The wettest day of the year at San Juan del Meco, 1961 to 2011. The record is 297.4 mm (11.7 in) in 1977, marked on the chart; the median year is 80.8 mm (3.2 in).
Wettest day (Rx1day) at San Juan del Meco by year
YearWettest day (Rx1day)
1961134.9 mm (5.3 in)
196261.5 mm (2.4 in)
196394.0 mm (3.7 in)
196446.0 mm (1.8 in)
196542.9 mm (1.7 in)
1966175.8 mm (6.9 in)
1967109.0 mm (4.3 in)
196846.5 mm (1.8 in)
1969137.4 mm (5.4 in)
1970123.2 mm (4.9 in)
197178.0 mm (3.1 in)
197254.4 mm (2.1 in)
197389.7 mm (3.5 in)
1974176.8 mm (7.0 in)
197599.8 mm (3.9 in)
197679.8 mm (3.1 in)
1977297.4 mm (11.7 in)
197889.9 mm (3.5 in)
197996.8 mm (3.8 in)
198053.8 mm (2.1 in)
198196.8 mm (3.8 in)
198246.0 mm (1.8 in)
198386.9 mm (3.4 in)
198447.0 mm (1.9 in)
198547.8 mm (1.9 in)
198680.8 mm (3.2 in)
198749.8 mm (2.0 in)
198871.9 mm (2.8 in)
198957.9 mm (2.3 in)
19900.0 mm (0.00 in)
1991100.8 mm (4.0 in)
199262.0 mm (2.4 in)
1993273.8 mm (10.8 in)
199465.8 mm (2.6 in)
199571.9 mm (2.8 in)
199681.8 mm (3.2 in)
199757.9 mm (2.3 in)
199842.4 mm (1.7 in)
199954.4 mm (2.1 in)
2000117.9 mm (4.6 in)
2001111.3 mm (4.4 in)
2002109.7 mm (4.3 in)
2003100.8 mm (4.0 in)
200455.4 mm (2.2 in)
200571.4 mm (2.8 in)
200672.9 mm (2.9 in)
2007164.8 mm (6.5 in)
2008135.9 mm (5.4 in)
200950.8 mm (2.0 in)
201091.9 mm (3.6 in)
2011239.8 mm (9.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at San Juan del Meco by year The wettest five days of the year at San Juan del Meco, 1961 to 2011. The record is 421.5 mm (16.6 in) in 1993, marked on the chart; the median year is 158.5 mm (6.2 in). 020040060019701980199020002010Record: 421.5 mm (16.6 in) in 1993
The wettest five days of the year at San Juan del Meco, 1961 to 2011. The record is 421.5 mm (16.6 in) in 1993, marked on the chart; the median year is 158.5 mm (6.2 in).
Wettest five days (Rx5day) at San Juan del Meco by year
YearWettest five days (Rx5day)
1961203.5 mm (8.0 in)
1962185.4 mm (7.3 in)
1963126.5 mm (5.0 in)
196499.3 mm (3.9 in)
196579.2 mm (3.1 in)
1966226.6 mm (8.9 in)
1967206.8 mm (8.1 in)
196870.4 mm (2.8 in)
1969320.5 mm (12.6 in)
1970213.4 mm (8.4 in)
1971121.8 mm (4.8 in)
197299.7 mm (3.9 in)
1973205.5 mm (8.1 in)
1974366.4 mm (14.4 in)
1975270.0 mm (10.6 in)
1976195.6 mm (7.7 in)
1977334.3 mm (13.2 in)
1978162.5 mm (6.4 in)
1979150.4 mm (5.9 in)
198095.6 mm (3.8 in)
1981279.3 mm (11.0 in)
198256.2 mm (2.2 in)
1983245.5 mm (9.7 in)
1984108.7 mm (4.3 in)
1985105.5 mm (4.2 in)
1986128.8 mm (5.1 in)
198779.8 mm (3.1 in)
1988170.5 mm (6.7 in)
198984.9 mm (3.3 in)
19900.0 mm (0.00 in)
1991180.5 mm (7.1 in)
199285.8 mm (3.4 in)
1993421.5 mm (16.6 in)
199482.9 mm (3.3 in)
1995165.4 mm (6.5 in)
1996156.1 mm (6.1 in)
199757.9 mm (2.3 in)
199856.1 mm (2.2 in)
1999135.7 mm (5.3 in)
2000212.9 mm (8.4 in)
2001231.4 mm (9.1 in)
2002158.5 mm (6.2 in)
2003147.8 mm (5.8 in)
2004132.1 mm (5.2 in)
2005185.0 mm (7.3 in)
200672.9 mm (2.9 in)
2007228.0 mm (9.0 in)
2008329.4 mm (13.0 in)
200960.2 mm (2.4 in)
2010226.4 mm (8.9 in)
2011273.1 mm (10.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at San Juan del Meco by year The longest dry spell of the year at San Juan del Meco, 1961 to 2011. The record is 179 days in 1998, marked on the chart; the median year is 78 days. 05010015020019701980199020002010Record: 179 days in 1998
The longest dry spell of the year at San Juan del Meco, 1961 to 2011. The record is 179 days in 1998, marked on the chart; the median year is 78 days.
Longest dry spell (CDD) at San Juan del Meco by year
YearLongest dry spell (CDD)
1961127 days
196244 days
196365 days
196454 days
196537 days
196642 days
196749 days
196836 days
196949 days
197078 days
197167 days
197254 days
197350 days
197456 days
197582 days
197644 days
197761 days
197883 days
197983 days
198089 days
198146 days
198279 days
1983127 days
198495 days
198597 days
1986103 days
1987134 days
198891 days
198992 days
199031 days
1991114 days
199269 days
1993159 days
199457 days
1995129 days
1996103 days
199760 days
1998179 days
1999151 days
2000101 days
2001116 days
200251 days
200370 days
200434 days
200547 days
200649 days
200743 days
200889 days
2009148 days
201097 days
2011104 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

48 years, 1961 to 2010

A day with at least 79.2 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 314.1 mm (12.4 in) of rain is expected about once in 100 years.

Rainfall return levels at San Juan del Meco: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years79.2 mm (3.1 in)
5 years119.6 mm (4.7 in)
10 years153.6 mm (6.0 in)
25 years207.1 mm (8.2 in)
50 years256.0 mm (10.1 in)Longer than the 48 years of record
100 years314.1 mm (12.4 in)Longer than the 48 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, 48 years of values from 1961 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: 297.4 mm (11.7 in) in 1977; 273.8 mm (10.8 in) in 1993; 176.8 mm (7.0 in) in 1974.

Download the Data

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