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Built 2026-10-19 (19 October 2026)

Jonacatepec Weather Records (MXN00017028)

Record envelope, standing records and threshold days for Jonacatepec (MXN00017028), Mexico, with 86 years of record.

Key Facts for Jonacatepec

  • Jonacatepec (MXN00017028) is a weather station in Mexico at 18.68 latitude and -98.82 longitude, 1,350 m (4,429 ft) above sea level.
  • The station reports from 1926 to 2011, 86 years of record.
  • 1,464 records set at Jonacatepec still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Jonacatepec set a daily record low minimum temperature of 1.7 C (35.1 F) on 2 December 2011.

About the Station

  • Location: Mexico, 18.68 latitude, -98.82 longitude.
  • Elevation: 1,350 m (4,429 ft).
  • Period of record: 1926 to 2011, 86 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 Jonacatepec, with 2026 drawn through them The band shows the record high and record low for each calendar day at Jonacatepec. 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 Jonacatepec. 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 Jonacatepec, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan40.0 C (104.0 F)-1.1 C (30.0 F)n/an/a
Feb41.7 C (107.1 F)0.6 C (33.1 F)n/an/a
Mar41.7 C (107.1 F)1.1 C (34.0 F)n/an/a
Apr45.0 C (113.0 F)5.0 C (41.0 F)n/an/a
May43.9 C (111.0 F)5.6 C (42.1 F)n/an/a
Jun45.0 C (113.0 F)7.8 C (46.0 F)n/an/a
Jul41.7 C (107.1 F)5.0 C (41.0 F)n/an/a
Aug40.0 C (104.0 F)6.7 C (44.1 F)n/an/a
Sep40.0 C (104.0 F)5.0 C (41.0 F)n/an/a
Oct40.0 C (104.0 F)0.6 C (33.1 F)n/an/a
Nov40.0 C (104.0 F)0.6 C (33.1 F)n/an/a
Dec40.0 C (104.0 F)-4.4 C (24.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Jonacatepec by the year they were set 1,464 records at Jonacatepec still stand. 1951 holds the most, with 201. 01002003001926: 21927: 81928: 61929: 21930: 91931: 41932: 51933: 41934: 21935: 61936: 51937: 41938: 41939: 21940: 31941: 51942: 221943: 511944: 731945: 1201946: 71947: 21948: 251949: 51950: 801951: 2011952: 601953: 1531954: 61955: 61956: 31957: 131958: 301959: 111960: 211961: 131962: 211963: 111964: 101965: 51966: 151967: 71968: 131970: 31986: 191987: 21988: 71989: 31990: 101991: 451992: 461993: 211994: 281995: 271996: 1041997: 31998: 51999: 182000: 52001: 12002: 42003: 102004: 62005: 32006: 142007: 42008: 102009: 22010: 52011: 41926193319401947195419611968199119982005
1,464 records at Jonacatepec still stand. 1951 holds the most, with 201.
Standing records at Jonacatepec by the year they were set
Year setStanding records
19262
19278
19286
19292
19309
19314
19325
19334
19342
19356
19365
19374
19384
19392
19403
19415
194222
194351
194473
1945120
19467
19472
194825
19495
195080
1951201
195260
1953153
19546
19556
19563
195713
195830
195911
196021
196113
196221
196311
196410
19655
196615
19677
196813
19703
198619
19872
19887
19893
199010
199145
199246
199321
199428
199527
1996104
19973
19985
199918
20005
20011
20024
200310
20046
20053
200614
20074
200810
20092
20105
20114

All-Time Record Progression

3 new records
When Jonacatepec set new all-time records 3 all-time records were set at Jonacatepec between 18 January 1958 and 11 January 1967. Each dot is a new record. Record low maximum temperature18 January 1958: Record low maximum temperature 15.6 C (60.1 F)20 January 1958: Record low maximum temperature 15.0 C (59.0 F)11 January 1967: Record low maximum temperature 14.4 C (57.9 F)19601965
3 all-time records were set at Jonacatepec between 18 January 1958 and 11 January 1967. Each dot is a new record.
When Jonacatepec set new all-time records
DateKindDetail
1958-01-18Record low maximum temperatureRecord low maximum temperature 15.6 C (60.1 F)
1958-01-20Record low maximum temperatureRecord low maximum temperature 15.0 C (59.0 F)
1967-01-11Record low maximum temperatureRecord low maximum temperature 14.4 C (57.9 F)

Wettest Day of Each Month

Jun: 106.9 mm (4.2 in)
Record daily precipitation for each month at Jonacatepec The wettest day on record for each calendar month at Jonacatepec. The most was 106.9 mm (4.2 in) on 11 June 1948. 050100150 Jan: 53.3 mm (2.1 in), 10 January 1967 Jan Feb: 45.0 mm (1.8 in), 4 February 2010 Feb Mar: 18.0 mm (0.7 in), 2 March 2001 Mar Apr: 40.9 mm (1.6 in), 3 April 1966 Apr May: 64.8 mm (2.6 in), 30 May 1945 May Jun: 106.9 mm (4.2 in), 11 June 1948 Jun Jul: 78.0 mm (3.1 in), 21 July 1958 Jul Aug: 83.1 mm (3.3 in), 29 August 1958 Aug Sep: 86.4 mm (3.4 in), 27 September 1941 Sep Oct: 84.8 mm (3.3 in), 4 October 1941 Oct Nov: 39.9 mm (1.6 in), 5 November 1961 Nov Dec: 31.8 mm (1.3 in), 31 December 1995 Dec
The wettest day on record for each calendar month at Jonacatepec. The most was 106.9 mm (4.2 in) on 11 June 1948.
Record daily precipitation for each month at Jonacatepec
MonthRecord daily precipitation (mm)Date
Jan53.3 mm (2.1 in)10 January 1967
Feb45.0 mm (1.8 in)4 February 2010
Mar18.0 mm (0.7 in)2 March 2001
Apr40.9 mm (1.6 in)3 April 1966
May64.8 mm (2.6 in)30 May 1945
Jun106.9 mm (4.2 in)11 June 1948
Jul78.0 mm (3.1 in)21 July 1958
Aug83.1 mm (3.3 in)29 August 1958
Sep86.4 mm (3.4 in)27 September 1941
Oct84.8 mm (3.3 in)4 October 1941
Nov39.9 mm (1.6 in)5 November 1961
Dec31.8 mm (1.3 in)31 December 1995

Period of Record Coverage

1926 to 2011
Days with data per year at Jonacatepec 70 years of record at Jonacatepec, 1926 to 2011. 3 years have data for under 90 percent of days and are left out of rankings: 1926, 1952, 1970. 1926: 181 of 365 days1927: 365 of 365 days1928: 366 of 366 days1929: 365 of 365 days1930: 365 of 365 days1931: 365 of 365 days1932: 366 of 366 days1933: 363 of 365 days1934: 365 of 365 days1935: 365 of 365 days1936: 366 of 366 days1937: 365 of 365 days1938: 365 of 365 days1939: 365 of 365 days1940: 366 of 366 days1941: 364 of 365 days1942: 364 of 365 days1943: 334 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 364 of 365 days1947: 333 of 365 days1948: 365 of 366 days1949: 364 of 365 days1950: 365 of 365 days1951: 364 of 365 days1952: 311 of 366 days1953: 364 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 365 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 364 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1970: 150 of 365 days1986: 334 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 365 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days19301940195019601970199020002010
70 years of record at Jonacatepec, 1926 to 2011. 3 years have data for under 90 percent of days and are left out of rankings: 1926, 1952, 1970.
Days with data per year at Jonacatepec
YearDays with dataShare of yearComplete
192618150%No
1927365100%Yes
1928366100%Yes
1929365100%Yes
1930365100%Yes
1931365100%Yes
1932366100%Yes
193336399%Yes
1934365100%Yes
1935365100%Yes
1936366100%Yes
1937365100%Yes
1938365100%Yes
1939365100%Yes
1940366100%Yes
1941364100%Yes
1942364100%Yes
194333492%Yes
1944366100%Yes
1945365100%Yes
1946364100%Yes
194733391%Yes
1948365100%Yes
1949364100%Yes
1950365100%Yes
1951364100%Yes
195231185%No
1953364100%Yes
1954365100%Yes
1955365100%Yes
1956365100%Yes
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes
1961365100%Yes
1962364100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
197015041%No
198633492%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
1992365100%Yes
1993365100%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes

Latest Records

20
Latest records at Jonacatepec
DateStationRecordValueBeat old record byOld record stoodSignificance
2 December 2011Jonacatepec, MXdaily low min1.7 C (35.1 F)0.5 C (0.9 F)66 years29 of 100 (Routine)
1 December 2011Jonacatepec, MXdaily low min1.7 C (35.1 F)0.5 C (0.9 F)68 years29 of 100 (Routine)
10 September 2011Jonacatepec, MXdaily low min7.8 C (46.0 F)0.5 C (0.9 F)65 years28 of 100 (Routine)
11 June 2011Jonacatepec, MXdaily low min10.6 C (51.1 F)0.5 C (0.9 F)68 years29 of 100 (Routine)
15 April 2011Jonacatepec, MXdaily rain9.7 mm (0.38 in)1.8 mm (0.07 in)74 years20 of 100 (Routine)
28 December 2010Jonacatepec, MXdaily low max22.8 C (73.0 F)1.1 C (2.0 F)16 years16 of 100 (Routine)
11 December 2010Jonacatepec, MXdaily low min (Tie)2.8 C (37.0 F)tie72 years7 of 100 (Routine)
10 December 2010Jonacatepec, MXdaily low min (Tie)2.8 C (37.0 F)tie65 years6 of 100 (Routine)
27 September 2010Jonacatepec, MXdaily low max22.8 C (73.0 F)2.2 C (4.0 F)68 years35 of 100 (Notable)
18 September 2010Jonacatepec, MXdaily rain79.0 mm (3.1 in)40.6 mm (1.6 in)20 years46 of 100 (Notable)
6 September 2010Jonacatepec, MXdaily low max23.9 C (75.0 F)1.1 C (2.0 F)76 years33 of 100 (Routine)
31 August 2010Jonacatepec, MXdaily low max23.9 C (75.0 F)1.1 C (2.0 F)4 years12 of 100 (Routine)
17 August 2010Jonacatepec, MXdaily rain60.2 mm (2.4 in)25.4 mm (1.0 in)15 years32 of 100 (Routine)
23 July 2010Jonacatepec, MXmonthly low max (Tie)21.7 C (71.1 F)tie77 years10 of 100 (Routine)
6 June 2010Jonacatepec, MXdaily high max (Tie)38.9 C (102.0 F)tie59 years6 of 100 (Routine)
16 April 2010Jonacatepec, MXdaily low min (Tie)7.8 C (46.0 F)tie8 years2 of 100 (Routine)
8 April 2010Jonacatepec, MXdaily rain19.6 mm (0.8 in)11.7 mm (0.5 in)17 years20 of 100 (Routine)
4 February 2010Jonacatepec, MXmonthly rain45.0 mm (1.8 in)25.2 mm (1.0 in)0 years58 of 100 (Notable)
3 February 2010Jonacatepec, MXmonthly rain19.8 mm (0.8 in)3.0 mm (0.12 in)79 years20 of 100 (Routine)
1 February 2010Jonacatepec, MXmonthly rain (Tie)16.8 mm (0.7 in)tie79 years10 of 100 (Routine)

Climate Trend

56 complete years, 1927 to 2011
Annual mean temperature at Jonacatepec as warming stripes, 1927 to 2011 One stripe for each of 56 complete years at Jonacatepec, 1927 to 2011. Blue stripes are years cooler than the station's own mean of 21.9 C (71.4 F); red stripes are warmer. The coolest year was 1996, at 18.6 C (65.5 F), and the warmest was 1991, at 24.6 C (76.2 F). The strongest colour marks a difference of 3.3 C (5.9 F). 1927: 21.5 C, -0.4 C from the station mean1928: 21.9 C, +0.1 C from the station mean1929: 21.9 C, 0.0 C from the station mean1930: 22.0 C, +0.1 C from the station mean1931: 22.0 C, +0.1 C from the station mean1932: 22.2 C, +0.3 C from the station mean1933: 22.2 C, +0.4 C from the station mean1934: 21.8 C, -0.1 C from the station mean1935: 21.4 C, -0.5 C from the station mean1936: 22.1 C, +0.2 C from the station mean1937: 22.2 C, +0.3 C from the station mean1938: 21.8 C, -0.1 C from the station mean1939: 21.2 C, -0.7 C from the station mean1940: 21.2 C, -0.7 C from the station mean1941: 20.7 C, -1.2 C from the station mean1942: 20.1 C, -1.7 C from the station mean1944: 19.0 C, -2.9 C from the station mean1945: 18.9 C, -2.9 C from the station mean1954: 23.9 C, +2.0 C from the station mean1955: 23.9 C, +2.0 C from the station mean1956: 23.6 C, +1.7 C from the station mean1957: 24.4 C, +2.5 C from the station mean1958: 23.9 C, +2.1 C from the station mean1959: 23.8 C, +2.0 C from the station mean1960: 24.4 C, +2.5 C from the station mean1961: 24.2 C, +2.3 C from the station mean1962: 24.2 C, +2.4 C from the station mean1963: 23.9 C, +2.0 C from the station mean1964: 24.3 C, +2.5 C from the station mean1965: 24.2 C, +2.3 C from the station mean1966: 24.2 C, +2.3 C from the station mean1967: 24.5 C, +2.6 C from the station mean1968: 24.5 C, +2.7 C from the station mean1987: 21.6 C, -0.2 C from the station mean1988: 21.1 C, -0.8 C from the station mean1989: 21.0 C, -0.8 C from the station mean1990: 21.0 C, -0.8 C from the station mean1991: 24.6 C, +2.7 C from the station mean1992: 20.1 C, -1.8 C from the station mean1993: 19.8 C, -2.1 C from the station mean1994: 22.1 C, +0.2 C from the station mean1995: 21.6 C, -0.3 C from the station mean1996: 18.6 C, -3.3 C from the station mean1997: 19.6 C, -2.3 C from the station mean2000: 20.5 C, -1.4 C from the station mean2001: 20.8 C, -1.1 C from the station mean2002: 21.6 C, -0.3 C from the station mean2003: 20.7 C, -1.2 C from the station mean2004: 20.4 C, -1.5 C from the station mean2005: 21.4 C, -0.5 C from the station mean2006: 20.3 C, -1.6 C from the station mean2007: 20.3 C, -1.6 C from the station mean2008: 19.9 C, -2.0 C from the station mean2009: 19.7 C, -2.2 C from the station mean2010: 20.5 C, -1.3 C from the station mean2011: 21.5 C, -0.4 C from the station mean192719401950196019701980199020002010
One stripe for each of 56 complete years at Jonacatepec, 1927 to 2011. Blue stripes are years cooler than the station's own mean of 21.9 C (71.4 F); red stripes are warmer. The coolest year was 1996, at 18.6 C (65.5 F), and the warmest was 1991, at 24.6 C (76.2 F). The strongest colour marks a difference of 3.3 C (5.9 F).
Annual mean temperature at Jonacatepec as warming stripes, 1927 to 2011
YearAnnual mean temperatureDifference from the station mean
192721.5 C-0.39 C
192821.9 C+0.07 C
192921.9 C+0.01 C
193022.0 C+0.14 C
193122.0 C+0.14 C
193222.2 C+0.29 C
193322.2 C+0.36 C
193421.8 C-0.05 C
193521.4 C-0.47 C
193622.1 C+0.24 C
193722.2 C+0.31 C
193821.8 C-0.08 C
193921.2 C-0.70 C
194021.2 C-0.68 C
194120.7 C-1.17 C
194220.1 C-1.72 C
194419.0 C-2.89 C
194518.9 C-2.93 C
195423.9 C+2.05 C
195523.9 C+2.01 C
195623.6 C+1.71 C
195724.4 C+2.55 C
195823.9 C+2.06 C
195923.8 C+1.98 C
196024.4 C+2.49 C
196124.2 C+2.29 C
196224.2 C+2.36 C
196323.9 C+2.01 C
196424.3 C+2.47 C
196524.2 C+2.33 C
196624.2 C+2.34 C
196724.5 C+2.62 C
196824.5 C+2.68 C
198721.6 C-0.24 C
198821.1 C-0.77 C
198921.0 C-0.84 C
199021.0 C-0.83 C
199124.6 C+2.71 C
199220.1 C-1.79 C
199319.8 C-2.09 C
199422.1 C+0.25 C
199521.6 C-0.29 C
199618.6 C-3.26 C
199719.6 C-2.25 C
200020.5 C-1.36 C
200120.8 C-1.08 C
200221.6 C-0.28 C
200320.7 C-1.17 C
200420.4 C-1.50 C
200521.4 C-0.48 C
200620.3 C-1.59 C
200720.3 C-1.61 C
200819.9 C-2.00 C
200919.7 C-2.18 C
201020.5 C-1.34 C
201121.5 C-0.37 C

The annual mean temperature here has fallen by 0.18 C (0.03 to 0.34) per decade over 1927 to 2011. In Fahrenheit: 0.3 F (0.1 to 0.6) per decade. The slope is a straight line fitted to 56 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Jonacatepec
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.18 C (-0.34 to -0.03) per decade-0.3 F (-0.6 to -0.1) per decade1927 to 201156Fall
Mean daily maximum-0.09 C (-0.21 to 0.04) per decade-0.2 F (-0.4 to 0.1) per decade1927 to 201156Not clearly different from zero
Mean daily minimum-0.28 C (-0.52 to -0.04) per decade-0.5 F (-0.9 to -0.1) per decade1927 to 201156Fall

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

1926 to 2011
Yearly extremes at Jonacatepec: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.0 C (113.0 F)195137.8 C (100.0 F)70
Coldest night (TNn)-4.4 C (24.1 F)19434.4 C (39.9 F)70
Wettest day (Rx1day)106.9 mm (4.2 in)194859.9 mm (2.4 in)70
Wettest five days (Rx5day)184.7 mm (7.3 in)1990111.2 mm (4.4 in)70
Longest dry spell (CDD)148 days199877 days70

Hottest day (TXx)

Hottest day (TXx) at Jonacatepec by year The hottest day of the year at Jonacatepec, 1926 to 2011. The record is 45.0 C (113.0 F) in 1951, marked on the chart; the median year is 37.8 C (100.0 F). 303540451940196019802000Record: 45.0 C (113.0 F) in 1951
The hottest day of the year at Jonacatepec, 1926 to 2011. The record is 45.0 C (113.0 F) in 1951, marked on the chart; the median year is 37.8 C (100.0 F).
Hottest day (TXx) at Jonacatepec by year
YearHottest day (TXx)
192630.6 C (87.1 F)
192736.1 C (97.0 F)
192835.6 C (96.1 F)
192936.7 C (98.1 F)
193036.7 C (98.1 F)
193135.0 C (95.0 F)
193236.7 C (98.1 F)
193336.7 C (98.1 F)
193438.3 C (100.9 F)
193536.1 C (97.0 F)
193636.1 C (97.0 F)
193736.7 C (98.1 F)
193835.6 C (96.1 F)
193936.7 C (98.1 F)
194037.8 C (100.0 F)
194137.8 C (100.0 F)
194238.3 C (100.9 F)
194338.9 C (102.0 F)
194437.8 C (100.0 F)
194537.8 C (100.0 F)
194637.2 C (99.0 F)
194737.8 C (100.0 F)
194841.7 C (107.1 F)
194940.6 C (105.1 F)
195040.0 C (104.0 F)
195145.0 C (113.0 F)
195240.0 C (104.0 F)
195337.8 C (100.0 F)
195440.0 C (104.0 F)
195540.0 C (104.0 F)
195637.8 C (100.0 F)
195738.9 C (102.0 F)
195838.3 C (100.9 F)
195937.8 C (100.0 F)
196037.8 C (100.0 F)
196137.8 C (100.0 F)
196237.8 C (100.0 F)
196340.0 C (104.0 F)
196440.6 C (105.1 F)
196539.4 C (102.9 F)
196642.8 C (109.0 F)
196739.4 C (102.9 F)
196837.2 C (99.0 F)
197040.0 C (104.0 F)
198635.6 C (96.1 F)
198736.7 C (98.1 F)
198836.7 C (98.1 F)
198935.0 C (95.0 F)
199032.8 C (91.0 F)
199141.7 C (107.1 F)
199235.0 C (95.0 F)
199336.7 C (98.1 F)
199438.3 C (100.9 F)
199540.0 C (104.0 F)
199636.1 C (97.0 F)
199735.0 C (95.0 F)
199837.2 C (99.0 F)
199935.0 C (95.0 F)
200036.7 C (98.1 F)
200137.8 C (100.0 F)
200236.7 C (98.1 F)
200337.8 C (100.0 F)
200435.0 C (95.0 F)
200536.7 C (98.1 F)
200635.6 C (96.1 F)
200735.0 C (95.0 F)
200836.7 C (98.1 F)
200935.0 C (95.0 F)
201040.0 C (104.0 F)
201140.0 C (104.0 F)

Coldest night (TNn)

Coldest night (TNn) at Jonacatepec by year The coldest night of the year at Jonacatepec, 1926 to 2011. The record is -4.4 C (24.1 F) in 1943, marked on the chart; the median year is 4.4 C (39.9 F). -50510151940196019802000Record: -4.4 C (24.1 F) in 1943
The coldest night of the year at Jonacatepec, 1926 to 2011. The record is -4.4 C (24.1 F) in 1943, marked on the chart; the median year is 4.4 C (39.9 F).
Coldest night (TNn) at Jonacatepec by year
YearColdest night (TNn)
19266.7 C (44.1 F)
19275.0 C (41.0 F)
19286.1 C (43.0 F)
19296.7 C (44.1 F)
19306.7 C (44.1 F)
19317.2 C (45.0 F)
19323.9 C (39.0 F)
19335.0 C (41.0 F)
19345.0 C (41.0 F)
19353.9 C (39.0 F)
19365.6 C (42.1 F)
19378.3 C (46.9 F)
19382.8 C (37.0 F)
19392.8 C (37.0 F)
19400.6 C (33.1 F)
19410.6 C (33.1 F)
19420.6 C (33.1 F)
1943-4.4 C (24.1 F)
19440.6 C (33.1 F)
19450.6 C (33.1 F)
19460.6 C (33.1 F)
19474.4 C (39.9 F)
194812.2 C (54.0 F)
194912.2 C (54.0 F)
195010.0 C (50.0 F)
195110.0 C (50.0 F)
19527.8 C (46.0 F)
19536.7 C (44.1 F)
19544.4 C (39.9 F)
19556.7 C (44.1 F)
19563.3 C (37.9 F)
19577.8 C (46.0 F)
19586.7 C (44.1 F)
19598.9 C (48.0 F)
19608.9 C (48.0 F)
19617.2 C (45.0 F)
19627.8 C (46.0 F)
19638.3 C (46.9 F)
19648.3 C (46.9 F)
19657.8 C (46.0 F)
19666.7 C (44.1 F)
19677.8 C (46.0 F)
19687.2 C (45.0 F)
197010.0 C (50.0 F)
19863.9 C (39.0 F)
19873.9 C (39.0 F)
19885.0 C (41.0 F)
19893.9 C (39.0 F)
19905.6 C (42.1 F)
19912.8 C (37.0 F)
19923.9 C (39.0 F)
19933.9 C (39.0 F)
19941.7 C (35.1 F)
19952.8 C (37.0 F)
19961.1 C (34.0 F)
19970.6 C (33.1 F)
19981.1 C (34.0 F)
1999-1.1 C (30.0 F)
20000.0 C (32.0 F)
20015.0 C (41.0 F)
20023.9 C (39.0 F)
20031.7 C (35.1 F)
20042.8 C (37.0 F)
20052.8 C (37.0 F)
2006-1.1 C (30.0 F)
20075.0 C (41.0 F)
20081.7 C (35.1 F)
20091.7 C (35.1 F)
20102.8 C (37.0 F)
20111.7 C (35.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Jonacatepec by year The wettest day of the year at Jonacatepec, 1926 to 2011. The record is 106.9 mm (4.2 in) in 1948, marked on the chart; the median year is 59.9 mm (2.4 in). 204060801001201940196019802000Record: 106.9 mm (4.2 in) in 1948
The wettest day of the year at Jonacatepec, 1926 to 2011. The record is 106.9 mm (4.2 in) in 1948, marked on the chart; the median year is 59.9 mm (2.4 in).
Wettest day (Rx1day) at Jonacatepec by year
YearWettest day (Rx1day)
192660.5 mm (2.4 in)
192747.8 mm (1.9 in)
192840.6 mm (1.6 in)
192953.3 mm (2.1 in)
193050.5 mm (2.0 in)
193134.3 mm (1.4 in)
193252.8 mm (2.1 in)
193376.5 mm (3.0 in)
193473.9 mm (2.9 in)
193569.9 mm (2.8 in)
193653.3 mm (2.1 in)
193748.8 mm (1.9 in)
193845.0 mm (1.8 in)
193954.9 mm (2.2 in)
194052.8 mm (2.1 in)
194186.4 mm (3.4 in)
194268.8 mm (2.7 in)
194341.9 mm (1.6 in)
194465.3 mm (2.6 in)
194564.8 mm (2.6 in)
194664.8 mm (2.6 in)
194780.8 mm (3.2 in)
1948106.9 mm (4.2 in)
194956.9 mm (2.2 in)
195047.0 mm (1.9 in)
195182.8 mm (3.3 in)
195230.5 mm (1.2 in)
195368.8 mm (2.7 in)
195449.8 mm (2.0 in)
195561.5 mm (2.4 in)
195649.8 mm (2.0 in)
195742.4 mm (1.7 in)
195883.1 mm (3.3 in)
195962.5 mm (2.5 in)
196044.2 mm (1.7 in)
196144.2 mm (1.7 in)
196235.6 mm (1.4 in)
196362.0 mm (2.4 in)
196441.9 mm (1.6 in)
196547.5 mm (1.9 in)
196667.1 mm (2.6 in)
196753.3 mm (2.1 in)
196888.4 mm (3.5 in)
197059.9 mm (2.4 in)
198659.9 mm (2.4 in)
198763.8 mm (2.5 in)
198873.9 mm (2.9 in)
198951.3 mm (2.0 in)
199082.8 mm (3.3 in)
199151.8 mm (2.0 in)
199245.0 mm (1.8 in)
199335.8 mm (1.4 in)
199449.8 mm (2.0 in)
199543.9 mm (1.7 in)
199671.9 mm (2.8 in)
199752.3 mm (2.1 in)
199863.5 mm (2.5 in)
199974.9 mm (2.9 in)
200059.9 mm (2.4 in)
200163.0 mm (2.5 in)
200267.8 mm (2.7 in)
200361.0 mm (2.4 in)
200451.8 mm (2.0 in)
200593.0 mm (3.7 in)
200663.0 mm (2.5 in)
200764.8 mm (2.6 in)
200855.6 mm (2.2 in)
200958.9 mm (2.3 in)
201079.0 mm (3.1 in)
201162.0 mm (2.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Jonacatepec by year The wettest five days of the year at Jonacatepec, 1926 to 2011. The record is 184.7 mm (7.3 in) in 1990, marked on the chart; the median year is 111.2 mm (4.4 in). 501001502001940196019802000Record: 184.7 mm (7.3 in) in 1990
The wettest five days of the year at Jonacatepec, 1926 to 2011. The record is 184.7 mm (7.3 in) in 1990, marked on the chart; the median year is 111.2 mm (4.4 in).
Wettest five days (Rx5day) at Jonacatepec by year
YearWettest five days (Rx5day)
1926139.8 mm (5.5 in)
192781.6 mm (3.2 in)
192865.2 mm (2.6 in)
1929113.4 mm (4.5 in)
1930104.6 mm (4.1 in)
1931103.8 mm (4.1 in)
1932145.2 mm (5.7 in)
1933114.5 mm (4.5 in)
1934100.1 mm (3.9 in)
193595.4 mm (3.8 in)
1936129.8 mm (5.1 in)
1937107.7 mm (4.2 in)
1938137.6 mm (5.4 in)
1939123.7 mm (4.9 in)
194092.8 mm (3.7 in)
1941145.6 mm (5.7 in)
1942153.9 mm (6.1 in)
194373.2 mm (2.9 in)
1944120.2 mm (4.7 in)
1945132.5 mm (5.2 in)
1946122.3 mm (4.8 in)
1947159.3 mm (6.3 in)
1948135.4 mm (5.3 in)
1949103.4 mm (4.1 in)
195066.3 mm (2.6 in)
1951129.0 mm (5.1 in)
195264.5 mm (2.5 in)
1953113.8 mm (4.5 in)
195491.5 mm (3.6 in)
1955126.3 mm (5.0 in)
1956108.7 mm (4.3 in)
1957105.7 mm (4.2 in)
1958146.1 mm (5.8 in)
1959110.7 mm (4.4 in)
1960102.2 mm (4.0 in)
1961107.4 mm (4.2 in)
196276.7 mm (3.0 in)
1963131.8 mm (5.2 in)
1964103.4 mm (4.1 in)
196585.1 mm (3.4 in)
1966111.2 mm (4.4 in)
196770.2 mm (2.8 in)
1968160.1 mm (6.3 in)
1970104.1 mm (4.1 in)
198678.1 mm (3.1 in)
198794.0 mm (3.7 in)
1988107.5 mm (4.2 in)
198983.9 mm (3.3 in)
1990184.7 mm (7.3 in)
1991103.0 mm (4.1 in)
1992110.3 mm (4.3 in)
199384.0 mm (3.3 in)
1994129.6 mm (5.1 in)
1995139.5 mm (5.5 in)
1996146.3 mm (5.8 in)
199773.2 mm (2.9 in)
1998146.2 mm (5.8 in)
1999153.9 mm (6.1 in)
2000116.3 mm (4.6 in)
2001144.9 mm (5.7 in)
2002156.5 mm (6.2 in)
2003156.6 mm (6.2 in)
2004111.1 mm (4.4 in)
2005112.8 mm (4.4 in)
200689.9 mm (3.5 in)
200793.2 mm (3.7 in)
2008108.2 mm (4.3 in)
2009156.5 mm (6.2 in)
2010142.7 mm (5.6 in)
2011147.4 mm (5.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Jonacatepec by year The longest dry spell of the year at Jonacatepec, 1926 to 2011. The record is 148 days in 1998, marked on the chart; the median year is 77 days. 0501001501940196019802000Record: 148 days in 1998
The longest dry spell of the year at Jonacatepec, 1926 to 2011. The record is 148 days in 1998, marked on the chart; the median year is 77 days.
Longest dry spell (CDD) at Jonacatepec by year
YearLongest dry spell (CDD)
192636 days
192772 days
192848 days
1929104 days
193063 days
1931114 days
1932121 days
1933137 days
193442 days
193562 days
1936105 days
193763 days
193855 days
1939107 days
194049 days
194143 days
1942121 days
194391 days
194476 days
194578 days
194687 days
1947111 days
194871 days
194978 days
195099 days
195177 days
195296 days
1953119 days
195434 days
195541 days
195640 days
195767 days
195845 days
195958 days
196068 days
196153 days
1962104 days
196378 days
196497 days
196553 days
196674 days
196785 days
196847 days
1970120 days
198685 days
1987110 days
198889 days
198974 days
199072 days
1991118 days
199260 days
199359 days
1994141 days
199581 days
199663 days
199762 days
1998148 days
199979 days
200070 days
200177 days
200285 days
200388 days
200466 days
2005133 days
200683 days
200775 days
2008113 days
200961 days
201059 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

66 years, 1927 to 2011

A day with at least 58.0 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 103.3 mm (4.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Jonacatepec: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years58.0 mm (2.3 in)
5 years72.1 mm (2.8 in)
10 years80.6 mm (3.2 in)
25 years90.4 mm (3.6 in)
50 years97.1 mm (3.8 in)
100 years103.3 mm (4.1 in)Longer than the 66 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, 66 years of values from 1927 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: 106.9 mm (4.2 in) in 1948; 93.0 mm (3.7 in) in 2005; 88.4 mm (3.5 in) in 1968.

Download the Data

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