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San Juan de Los Lagos Weather Records (MXN00014126)

Record envelope, standing records and threshold days for San Juan de Los Lagos (MXN00014126), Mexico, with 48 years of record.

Key Facts for San Juan de Los Lagos

  • San Juan de Los Lagos (MXN00014126) is a weather station in Mexico at 21.23 latitude and -102.32 longitude, 1,750 m (5,741 ft) above sea level.
  • The station reports from 1941 to 1988, 48 years of record.
  • 1,464 records set at San Juan de Los Lagos still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • San Juan de Los Lagos tied a daily record high maximum temperature of 32.8 C (91.0 F) on 9 August 1988.

About the Station

  • Location: Mexico, 21.23 latitude, -102.32 longitude.
  • Elevation: 1,750 m (5,741 ft).
  • Period of record: 1941 to 1988, 48 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 de Los Lagos, with 2026 drawn through them The band shows the record high and record low for each calendar day at San Juan de Los Lagos. 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 de Los Lagos. 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 de Los Lagos, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan36.7 C (98.1 F)-8.3 C (17.1 F)n/an/a
Feb35.6 C (96.1 F)-5.0 C (23.0 F)n/an/a
Mar37.8 C (100.0 F)-5.0 C (23.0 F)n/an/a
Apr38.9 C (102.0 F)-0.6 C (30.9 F)n/an/a
May45.0 C (113.0 F)5.6 C (42.1 F)n/an/a
Jun41.7 C (107.1 F)3.9 C (39.0 F)n/an/a
Jul37.8 C (100.0 F)8.9 C (48.0 F)n/an/a
Aug40.0 C (104.0 F)7.8 C (46.0 F)n/an/a
Sep38.9 C (102.0 F)0.0 C (32.0 F)n/an/a
Oct40.0 C (104.0 F)0.0 C (32.0 F)n/an/a
Nov36.7 C (98.1 F)-5.0 C (23.0 F)n/an/a
Dec35.6 C (96.1 F)-5.0 C (23.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at San Juan de Los Lagos by the year they were set 1,464 records at San Juan de Los Lagos still stand. 1941 holds the most, with 178. 0501001502001941: 1781942: 1571943: 631944: 391945: 411946: 671947: 431948: 191949: 181950: 221951: 291952: 161953: 231954: 231955: 301956: 321957: 281958: 251959: 71960: 171961: 151962: 191963: 191964: 151965: 191966: 191967: 351968: 221969: 101970: 181971: 151972: 291973: 151974: 231975: 171976: 271977: 91978: 151979: 161980: 261981: 91982: 291983: 301984: 311985: 231986: 221987: 471988: 131941194619511956196119661971197619811986
1,464 records at San Juan de Los Lagos still stand. 1941 holds the most, with 178.
Standing records at San Juan de Los Lagos by the year they were set
Year setStanding records
1941178
1942157
194363
194439
194541
194667
194743
194819
194918
195022
195129
195216
195323
195423
195530
195632
195728
195825
19597
196017
196115
196219
196319
196415
196519
196619
196735
196822
196910
197018
197115
197229
197315
197423
197517
197627
19779
197815
197916
198026
19819
198229
198330
198431
198523
198622
198747
198813

Wettest Day of Each Month

Sep: 122.9 mm (4.8 in)
Record daily precipitation for each month at San Juan de Los Lagos The wettest day on record for each calendar month at San Juan de Los Lagos. The most was 122.9 mm (4.8 in) on 19 September 1957. 050100150 Jan: 52.3 mm (2.1 in), 11 January 1967 Jan Feb: 49.0 mm (1.9 in), 10 February 1966 Feb Mar: 22.6 mm (0.9 in), 3 March 1968 Mar Apr: 41.9 mm (1.6 in), 28 April 1965 Apr May: 40.1 mm (1.6 in), 26 May 1972 May Jun: 81.0 mm (3.2 in), 25 June 1962 Jun Jul: 77.2 mm (3.0 in), 1 July 1988 Jul Aug: 72.9 mm (2.9 in), 7 August 1942 Aug Sep: 122.9 mm (4.8 in), 19 September 1957 Sep Oct: 71.4 mm (2.8 in), 20 October 1985 Oct Nov: 32.8 mm (1.3 in), 26 November 1982 Nov Dec: 36.6 mm (1.4 in), 26 December 1958 Dec
The wettest day on record for each calendar month at San Juan de Los Lagos. The most was 122.9 mm (4.8 in) on 19 September 1957.
Record daily precipitation for each month at San Juan de Los Lagos
MonthRecord daily precipitation (mm)Date
Jan52.3 mm (2.1 in)11 January 1967
Feb49.0 mm (1.9 in)10 February 1966
Mar22.6 mm (0.9 in)3 March 1968
Apr41.9 mm (1.6 in)28 April 1965
May40.1 mm (1.6 in)26 May 1972
Jun81.0 mm (3.2 in)25 June 1962
Jul77.2 mm (3.0 in)1 July 1988
Aug72.9 mm (2.9 in)7 August 1942
Sep122.9 mm (4.8 in)19 September 1957
Oct71.4 mm (2.8 in)20 October 1985
Nov32.8 mm (1.3 in)26 November 1982
Dec36.6 mm (1.4 in)26 December 1958

Period of Record Coverage

1941 to 1988
Days with data per year at San Juan de Los Lagos 48 years of record at San Juan de Los Lagos, 1941 to 1988. 4 years have data for under 90 percent of days and are left out of rankings: 1941, 1949, 1966, 1988. 1941: 177 of 365 days1942: 356 of 365 days1943: 357 of 365 days1944: 362 of 366 days1945: 360 of 365 days1946: 346 of 365 days1947: 354 of 365 days1948: 361 of 366 days1949: 274 of 365 days1950: 363 of 365 days1951: 359 of 365 days1952: 365 of 366 days1953: 351 of 365 days1954: 346 of 365 days1955: 343 of 365 days1956: 362 of 366 days1957: 356 of 365 days1958: 360 of 365 days1959: 359 of 365 days1960: 365 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 304 of 365 days1967: 364 of 365 days1968: 366 of 366 days1969: 361 of 365 days1970: 364 of 365 days1971: 365 of 365 days1972: 361 of 366 days1973: 365 of 365 days1974: 364 of 365 days1975: 364 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 364 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 353 of 365 days1984: 363 of 366 days1985: 365 of 365 days1986: 334 of 365 days1987: 349 of 365 days1988: 210 of 366 days1950196019701980
48 years of record at San Juan de Los Lagos, 1941 to 1988. 4 years have data for under 90 percent of days and are left out of rankings: 1941, 1949, 1966, 1988.
Days with data per year at San Juan de Los Lagos
YearDays with dataShare of yearComplete
194117748%No
194235698%Yes
194335798%Yes
194436299%Yes
194536099%Yes
194634695%Yes
194735497%Yes
194836199%Yes
194927475%No
195036399%Yes
195135998%Yes
1952365100%Yes
195335196%Yes
195434695%Yes
195534394%Yes
195636299%Yes
195735698%Yes
195836099%Yes
195935998%Yes
1960365100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
196630483%No
1967364100%Yes
1968366100%Yes
196936199%Yes
1970364100%Yes
1971365100%Yes
197236199%Yes
1973365100%Yes
1974364100%Yes
1975364100%Yes
1976366100%Yes
1977365100%Yes
1978364100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
198335397%Yes
198436399%Yes
1985365100%Yes
198633492%Yes
198734996%Yes
198821057%No

Latest Records

20
Latest records at San Juan de Los Lagos
DateStationRecordValueBeat old record byOld record stoodSignificance
9 August 1988San Juan de Los Lagos, MXdaily high max (Tie)32.8 C (91.0 F)tie44 years4 of 100 (Routine)
9 August 1988San Juan de Los Lagos, MXdaily high min (Tie)16.7 C (62.1 F)tie8 years1 of 100 (Routine)
6 August 1988San Juan de Los Lagos, MXdaily low min (Tie)10.0 C (50.0 F)tie32 years3 of 100 (Routine)
3 August 1988San Juan de Los Lagos, MXdaily low min (Tie)10.0 C (50.0 F)tie6 years1 of 100 (Routine)
31 July 1988San Juan de Los Lagos, MXdaily low max (Tie)23.9 C (75.0 F)tie45 years4 of 100 (Routine)
30 July 1988San Juan de Los Lagos, MXdaily low max (Tie)21.7 C (71.1 F)tie3 years1 of 100 (Routine)
29 July 1988San Juan de Los Lagos, MXdaily low min10.0 C (50.0 F)0.6 C (1.1 F)31 years16 of 100 (Routine)
29 July 1988San Juan de Los Lagos, MXdaily low max (Tie)23.9 C (75.0 F)tie1 year1 of 100 (Routine)
25 July 1988San Juan de Los Lagos, MXdaily low min (Tie)11.1 C (52.0 F)tie20 years2 of 100 (Routine)
23 July 1988San Juan de Los Lagos, MXdaily low max21.7 C (71.1 F)1.1 C (2.0 F)16 years11 of 100 (Routine)
23 July 1988San Juan de Los Lagos, MXdaily low min (Tie)11.1 C (52.0 F)tie24 years2 of 100 (Routine)
22 July 1988San Juan de Los Lagos, MXdaily low max20.0 C (68.0 F)2.8 C (5.0 F)34 years22 of 100 (Routine)
22 July 1988San Juan de Los Lagos, MXdaily low min (Tie)10.0 C (50.0 F)tie12 years1 of 100 (Routine)
2 July 1988San Juan de Los Lagos, MXdaily low max20.0 C (68.0 F)1.7 C (3.1 F)15 years13 of 100 (Routine)
1 July 1988San Juan de Los Lagos, MXmonthly rain77.2 mm (3.0 in)1.5 mm (0.06 in)11 years18 of 100 (Routine)
20 May 1988San Juan de Los Lagos, MXdaily low max23.9 C (75.0 F)1.1 C (2.0 F)30 years16 of 100 (Routine)
3 May 1988San Juan de Los Lagos, MXdaily low min6.7 C (44.1 F)1.1 C (2.0 F)31 years17 of 100 (Routine)
1 May 1988San Juan de Los Lagos, MXdaily low min (Tie)6.1 C (43.0 F)tie26 years2 of 100 (Routine)
29 April 1988San Juan de Los Lagos, MXdaily low min (Tie)6.1 C (43.0 F)tie26 years2 of 100 (Routine)
26 April 1988San Juan de Los Lagos, MXdaily low min6.1 C (43.0 F)0.6 C (1.1 F)43 years18 of 100 (Routine)

Climate Trend

42 complete years, 1942 to 1987
Annual mean temperature at San Juan de Los Lagos as warming stripes, 1942 to 1987 One stripe for each of 42 complete years at San Juan de Los Lagos, 1942 to 1987. Blue stripes are years cooler than the station's own mean of 18.4 C (65.1 F); red stripes are warmer. The coolest year was 1984, at 16.7 C (62.1 F), and the warmest was 1942, at 21.3 C (70.3 F). The strongest colour marks a difference of 2.9 C (5.2 F). 1942: 21.3 C, +2.8 C from the station mean1943: 20.1 C, +1.6 C from the station mean1944: 19.9 C, +1.4 C from the station mean1945: 20.2 C, +1.8 C from the station mean1947: 19.7 C, +1.3 C from the station mean1948: 18.6 C, +0.2 C from the station mean1950: 18.0 C, -0.4 C from the station mean1951: 18.5 C, +0.1 C from the station mean1952: 17.9 C, -0.5 C from the station mean1953: 18.1 C, -0.3 C from the station mean1954: 18.4 C, -0.1 C from the station mean1955: 17.7 C, -0.7 C from the station mean1956: 17.4 C, -1.0 C from the station mean1957: 18.2 C, -0.3 C from the station mean1958: 18.3 C, -0.1 C from the station mean1959: 19.2 C, +0.7 C from the station mean1960: 20.1 C, +1.7 C from the station mean1961: 19.5 C, +1.1 C from the station mean1962: 18.5 C, 0.0 C from the station mean1963: 18.3 C, -0.1 C from the station mean1964: 18.2 C, -0.2 C from the station mean1965: 18.2 C, -0.2 C from the station mean1967: 17.9 C, -0.5 C from the station mean1968: 18.0 C, -0.4 C from the station mean1969: 18.6 C, +0.2 C from the station mean1970: 17.9 C, -0.5 C from the station mean1971: 17.8 C, -0.6 C from the station mean1972: 18.2 C, -0.2 C from the station mean1973: 17.8 C, -0.6 C from the station mean1974: 17.5 C, -0.9 C from the station mean1975: 17.6 C, -0.8 C from the station mean1976: 17.7 C, -0.7 C from the station mean1977: 18.3 C, -0.1 C from the station mean1978: 19.1 C, +0.7 C from the station mean1979: 19.2 C, +0.8 C from the station mean1980: 19.3 C, +0.9 C from the station mean1981: 18.9 C, +0.5 C from the station mean1982: 18.0 C, -0.4 C from the station mean1983: 16.9 C, -1.5 C from the station mean1984: 16.7 C, -1.7 C from the station mean1985: 17.0 C, -1.4 C from the station mean1987: 16.8 C, -1.6 C from the station mean1942194519501955196019651970197519801985
One stripe for each of 42 complete years at San Juan de Los Lagos, 1942 to 1987. Blue stripes are years cooler than the station's own mean of 18.4 C (65.1 F); red stripes are warmer. The coolest year was 1984, at 16.7 C (62.1 F), and the warmest was 1942, at 21.3 C (70.3 F). The strongest colour marks a difference of 2.9 C (5.2 F).
Annual mean temperature at San Juan de Los Lagos as warming stripes, 1942 to 1987
YearAnnual mean temperatureDifference from the station mean
194221.3 C+2.85 C
194320.1 C+1.64 C
194419.9 C+1.45 C
194520.2 C+1.76 C
194719.7 C+1.33 C
194818.6 C+0.16 C
195018.0 C-0.41 C
195118.5 C+0.08 C
195217.9 C-0.48 C
195318.1 C-0.28 C
195418.4 C-0.06 C
195517.7 C-0.72 C
195617.4 C-1.00 C
195718.2 C-0.26 C
195818.3 C-0.14 C
195919.2 C+0.75 C
196020.1 C+1.69 C
196119.5 C+1.09 C
196218.5 C+0.04 C
196318.3 C-0.10 C
196418.2 C-0.24 C
196518.2 C-0.21 C
196717.9 C-0.50 C
196818.0 C-0.44 C
196918.6 C+0.22 C
197017.9 C-0.48 C
197117.8 C-0.59 C
197218.2 C-0.20 C
197317.8 C-0.60 C
197417.5 C-0.94 C
197517.6 C-0.84 C
197617.7 C-0.67 C
197718.3 C-0.07 C
197819.1 C+0.67 C
197919.2 C+0.82 C
198019.3 C+0.87 C
198118.9 C+0.47 C
198218.0 C-0.44 C
198316.9 C-1.50 C
198416.7 C-1.67 C
198517.0 C-1.37 C
198716.8 C-1.60 C

The annual mean temperature here has fallen by 0.4 C (0.2 to 0.6) per decade over 1942 to 1987. In Fahrenheit: 0.8 F (0.4 to 1.1) per decade. The slope is a straight line fitted to 42 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at San Juan de Los Lagos
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.4 C (-0.6 to -0.2) per decade-0.8 F (-1.1 to -0.4) per decade1942 to 198742Fall
Mean daily maximum-0.6 C (-0.9 to -0.3) per decade-1.1 F (-1.6 to -0.5) per decade1942 to 198742Fall
Mean daily minimum-0.3 C (-0.4 to -0.1) per decade-0.5 F (-0.8 to -0.2) per decade1942 to 198742Fall

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

1941 to 1988
Yearly extremes at San Juan de Los Lagos: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.0 C (113.0 F)194635.6 C (96.1 F)48
Coldest night (TNn)-8.3 C (17.1 F)1956-1.7 C (28.9 F)48
Wettest day (Rx1day)122.9 mm (4.8 in)195754.5 mm (2.1 in)48
Wettest five days (Rx5day)189.2 mm (7.4 in)194396.5 mm (3.8 in)48
Longest dry spell (CDD)145 days198680 days48

Hottest day (TXx)

Hottest day (TXx) at San Juan de Los Lagos by year The hottest day of the year at San Juan de Los Lagos, 1941 to 1988. The record is 45.0 C (113.0 F) in 1946, marked on the chart; the median year is 35.6 C (96.1 F). 303540451950196019701980Record: 45.0 C (113.0 F) in 1946
The hottest day of the year at San Juan de Los Lagos, 1941 to 1988. The record is 45.0 C (113.0 F) in 1946, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at San Juan de Los Lagos by year
YearHottest day (TXx)
194140.0 C (104.0 F)
194241.7 C (107.1 F)
194340.6 C (105.1 F)
194438.9 C (102.0 F)
194541.7 C (107.1 F)
194645.0 C (113.0 F)
194738.9 C (102.0 F)
194834.4 C (93.9 F)
194935.0 C (95.0 F)
195034.4 C (93.9 F)
195135.0 C (95.0 F)
195235.0 C (95.0 F)
195335.6 C (96.1 F)
195436.1 C (97.0 F)
195535.0 C (95.0 F)
195634.4 C (93.9 F)
195735.0 C (95.0 F)
195834.4 C (93.9 F)
195935.0 C (95.0 F)
196035.6 C (96.1 F)
196134.4 C (93.9 F)
196238.3 C (100.9 F)
196336.7 C (98.1 F)
196436.7 C (98.1 F)
196536.7 C (98.1 F)
196634.4 C (93.9 F)
196738.3 C (100.9 F)
196837.2 C (99.0 F)
196938.3 C (100.9 F)
197036.7 C (98.1 F)
197135.6 C (96.1 F)
197235.6 C (96.1 F)
197337.2 C (99.0 F)
197436.1 C (97.0 F)
197535.6 C (96.1 F)
197635.6 C (96.1 F)
197734.4 C (93.9 F)
197836.7 C (98.1 F)
197936.7 C (98.1 F)
198035.6 C (96.1 F)
198136.7 C (98.1 F)
198235.0 C (95.0 F)
198335.0 C (95.0 F)
198432.8 C (91.0 F)
198534.4 C (93.9 F)
198635.0 C (95.0 F)
198731.7 C (89.1 F)
198833.9 C (93.0 F)

Coldest night (TNn)

Coldest night (TNn) at San Juan de Los Lagos by year The coldest night of the year at San Juan de Los Lagos, 1941 to 1988. The record is -8.3 C (17.1 F) in 1956, marked on the chart; the median year is -1.7 C (28.9 F). -10-5051950196019701980Record: -8.3 C (17.1 F) in 1956
The coldest night of the year at San Juan de Los Lagos, 1941 to 1988. The record is -8.3 C (17.1 F) in 1956, marked on the chart; the median year is -1.7 C (28.9 F).
Coldest night (TNn) at San Juan de Los Lagos by year
YearColdest night (TNn)
19412.8 C (37.0 F)
1942-5.0 C (23.0 F)
1943-0.6 C (30.9 F)
1944-1.1 C (30.0 F)
19450.0 C (32.0 F)
19460.0 C (32.0 F)
1947-1.1 C (30.0 F)
19480.6 C (33.1 F)
19490.0 C (32.0 F)
19500.0 C (32.0 F)
19510.0 C (32.0 F)
19520.0 C (32.0 F)
19530.0 C (32.0 F)
1954-4.4 C (24.1 F)
1955-7.2 C (19.0 F)
1956-8.3 C (17.1 F)
1957-3.3 C (26.1 F)
1958-3.3 C (26.1 F)
1959-1.1 C (30.0 F)
1960-0.6 C (30.9 F)
19610.0 C (32.0 F)
1962-5.6 C (21.9 F)
1963-2.2 C (28.0 F)
1964-1.1 C (30.0 F)
1965-1.7 C (28.9 F)
1966-3.9 C (25.0 F)
1967-7.2 C (19.0 F)
1968-5.0 C (23.0 F)
19690.0 C (32.0 F)
19700.0 C (32.0 F)
19710.0 C (32.0 F)
1972-4.4 C (24.1 F)
19730.0 C (32.0 F)
1974-2.2 C (28.0 F)
1975-4.4 C (24.1 F)
1976-5.0 C (23.0 F)
19770.0 C (32.0 F)
1978-3.3 C (26.1 F)
1979-3.9 C (25.0 F)
1980-1.7 C (28.9 F)
1981-1.7 C (28.9 F)
1982-3.9 C (25.0 F)
1983-2.2 C (28.0 F)
19840.0 C (32.0 F)
1985-4.4 C (24.1 F)
19860.0 C (32.0 F)
1987-5.0 C (23.0 F)
1988-6.1 C (21.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at San Juan de Los Lagos by year The wettest day of the year at San Juan de Los Lagos, 1941 to 1988. The record is 122.9 mm (4.8 in) in 1957, marked on the chart; the median year is 54.5 mm (2.1 in). 2550751001251950196019701980Record: 122.9 mm (4.8 in) in 1957
The wettest day of the year at San Juan de Los Lagos, 1941 to 1988. The record is 122.9 mm (4.8 in) in 1957, marked on the chart; the median year is 54.5 mm (2.1 in).
Wettest day (Rx1day) at San Juan de Los Lagos by year
YearWettest day (Rx1day)
194168.8 mm (2.7 in)
194272.9 mm (2.9 in)
194359.9 mm (2.4 in)
194458.2 mm (2.3 in)
194563.0 mm (2.5 in)
194642.4 mm (1.7 in)
194754.1 mm (2.1 in)
194853.3 mm (2.1 in)
194940.9 mm (1.6 in)
195074.9 mm (2.9 in)
195132.3 mm (1.3 in)
195240.4 mm (1.6 in)
195354.4 mm (2.1 in)
195427.9 mm (1.1 in)
195566.0 mm (2.6 in)
195653.8 mm (2.1 in)
1957122.9 mm (4.8 in)
195842.4 mm (1.7 in)
195963.5 mm (2.5 in)
196036.3 mm (1.4 in)
196134.0 mm (1.3 in)
196281.0 mm (3.2 in)
196347.5 mm (1.9 in)
196462.5 mm (2.5 in)
196557.2 mm (2.3 in)
196651.3 mm (2.0 in)
196752.3 mm (2.1 in)
196826.2 mm (1.0 in)
196943.2 mm (1.7 in)
197073.4 mm (2.9 in)
197161.0 mm (2.4 in)
197240.1 mm (1.6 in)
197371.1 mm (2.8 in)
197460.2 mm (2.4 in)
197552.8 mm (2.1 in)
197675.7 mm (3.0 in)
197739.4 mm (1.6 in)
197846.2 mm (1.8 in)
197958.7 mm (2.3 in)
198057.9 mm (2.3 in)
198178.0 mm (3.1 in)
198232.8 mm (1.3 in)
198354.6 mm (2.1 in)
198439.9 mm (1.6 in)
198571.4 mm (2.8 in)
198646.0 mm (1.8 in)
198762.5 mm (2.5 in)
198877.2 mm (3.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at San Juan de Los Lagos by year The wettest five days of the year at San Juan de Los Lagos, 1941 to 1988. The record is 189.2 mm (7.4 in) in 1943, marked on the chart; the median year is 96.5 mm (3.8 in). 501001502001950196019701980Record: 189.2 mm (7.4 in) in 1943
The wettest five days of the year at San Juan de Los Lagos, 1941 to 1988. The record is 189.2 mm (7.4 in) in 1943, marked on the chart; the median year is 96.5 mm (3.8 in).
Wettest five days (Rx5day) at San Juan de Los Lagos by year
YearWettest five days (Rx5day)
194177.2 mm (3.0 in)
194299.8 mm (3.9 in)
1943189.2 mm (7.4 in)
1944133.8 mm (5.3 in)
194591.4 mm (3.6 in)
194668.8 mm (2.7 in)
1947112.3 mm (4.4 in)
194863.2 mm (2.5 in)
194968.6 mm (2.7 in)
1950132.0 mm (5.2 in)
195182.4 mm (3.2 in)
195293.7 mm (3.7 in)
195381.8 mm (3.2 in)
195471.4 mm (2.8 in)
1955118.4 mm (4.7 in)
195691.6 mm (3.6 in)
1957176.4 mm (6.9 in)
195885.9 mm (3.4 in)
195985.3 mm (3.4 in)
196092.8 mm (3.7 in)
196191.2 mm (3.6 in)
1962147.6 mm (5.8 in)
1963117.8 mm (4.6 in)
196482.9 mm (3.3 in)
1965162.8 mm (6.4 in)
1966111.2 mm (4.4 in)
1967160.2 mm (6.3 in)
196888.3 mm (3.5 in)
1969118.2 mm (4.7 in)
1970117.1 mm (4.6 in)
1971132.4 mm (5.2 in)
197277.0 mm (3.0 in)
1973184.5 mm (7.3 in)
1974159.3 mm (6.3 in)
197594.8 mm (3.7 in)
1976185.1 mm (7.3 in)
1977102.9 mm (4.1 in)
197895.7 mm (3.8 in)
197991.6 mm (3.6 in)
198074.4 mm (2.9 in)
1981110.2 mm (4.3 in)
198255.5 mm (2.2 in)
198385.1 mm (3.4 in)
198477.5 mm (3.1 in)
1985105.8 mm (4.2 in)
1986115.8 mm (4.6 in)
1987119.6 mm (4.7 in)
198897.3 mm (3.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at San Juan de Los Lagos by year The longest dry spell of the year at San Juan de Los Lagos, 1941 to 1988. The record is 145 days in 1986, marked on the chart; the median year is 80 days. 0501001501950196019701980Record: 145 days in 1986
The longest dry spell of the year at San Juan de Los Lagos, 1941 to 1988. The record is 145 days in 1986, marked on the chart; the median year is 80 days.
Longest dry spell (CDD) at San Juan de Los Lagos by year
YearLongest dry spell (CDD)
194121 days
1942106 days
1943112 days
194450 days
194574 days
194688 days
1947103 days
194868 days
194940 days
195097 days
195174 days
1952107 days
195378 days
195496 days
1955127 days
195673 days
195767 days
195880 days
1959101 days
1960108 days
1961114 days
196269 days
196357 days
196456 days
196556 days
196656 days
196753 days
196831 days
1969131 days
197068 days
1971132 days
197248 days
1973120 days
197452 days
1975124 days
197666 days
197780 days
197881 days
1979109 days
198067 days
198174 days
198285 days
1983127 days
198488 days
198598 days
1986145 days
198793 days
198865 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

28 years with a frost

Across 28 years with a frost, the median last spring frost at San Juan de Los Lagos falls on 15 February and the median first autumn frost on 2 December, which leaves a median of 289 days between them.

Fitted over all years, the growing season changes by +1.1 days per decade at this station.

Frost dates and growing season at San Juan de Los Lagos
MeasureMedian, all yearsEarliest periodRecent period (1942 to 1987)Recent against earliestFitted trend
Last spring frost15 Februaryn/a15 Februaryn/a0.0 days per decade
First autumn frost2 Decembern/a2 Decembern/a+1.1 days per decade
Growing days289 daysn/a289 daysn/a+1.1 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

44 years, 1942 to 1987

A day with at least 53.9 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 101.6 mm (4.0 in) of rain is expected about once in 100 years.

Rainfall return levels at San Juan de Los Lagos: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years53.9 mm (2.1 in)
5 years69.2 mm (2.7 in)
10 years78.2 mm (3.1 in)
25 years88.5 mm (3.5 in)
50 years95.4 mm (3.8 in)Longer than the 44 years of record
100 years101.6 mm (4.0 in)Longer than the 44 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, 44 years of values from 1942 to 1987.

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 1957; 81.0 mm (3.2 in) in 1962; 78.0 mm (3.1 in) in 1981.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

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