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Built 2026-10-18 (18 October 2026)

San Juan de Las Flores Weather Records (MXN00012069)

Record envelope, standing records and threshold days for San Juan de Las Flores (MXN00012069), Mexico, with 48 years of record.

Key Facts for San Juan de Las Flores

  • San Juan de Las Flores (MXN00012069) is a weather station in Mexico at 17.32 latitude and -100.38 longitude, 630 m (2,066 ft) above sea level.
  • The station reports from 1965 to 2012, 48 years of record.
  • 1,464 records set at San Juan de Las Flores still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • San Juan de Las Flores tied a monthly record high minimum temperature of 21.7 C (71.1 F) on 23 November 2012.

About the Station

  • Location: Mexico, 17.32 latitude, -100.38 longitude.
  • Elevation: 630 m (2,066 ft).
  • Period of record: 1965 to 2012, 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 Las Flores, with 2026 drawn through them The band shows the record high and record low for each calendar day at San Juan de Las Flores. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 10152025303540 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at San Juan de Las Flores. 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 Las Flores, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan32.8 C (91.0 F)13.3 C (55.9 F)n/an/a
Feb35.0 C (95.0 F)11.7 C (53.1 F)n/an/a
Mar33.9 C (93.0 F)13.9 C (57.0 F)n/an/a
Apr35.6 C (96.1 F)13.9 C (57.0 F)n/an/a
May35.0 C (95.0 F)15.6 C (60.1 F)n/an/a
Jun35.0 C (95.0 F)15.0 C (59.0 F)n/an/a
Jul35.6 C (96.1 F)16.7 C (62.1 F)n/an/a
Aug35.6 C (96.1 F)16.7 C (62.1 F)n/an/a
Sep31.7 C (89.1 F)16.1 C (61.0 F)n/an/a
Oct31.7 C (89.1 F)16.7 C (62.1 F)n/an/a
Nov31.7 C (89.1 F)15.6 C (60.1 F)n/an/a
Dec33.9 C (93.0 F)15.6 C (60.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at San Juan de Las Flores by the year they were set 1,464 records at San Juan de Las Flores still stand. 1981 holds the most, with 101. 0501001501980: 591981: 1011982: 461983: 841984: 601985: 631986: 361987: 751988: 691989: 231990: 271991: 351992: 511993: 451994: 361995: 411996: 481997: 411998: 251999: 142000: 252001: 512002: 452003: 552004: 172005: 622006: 432008: 162009: 232010: 702011: 602012: 1819801984198819921996200020042009
1,464 records at San Juan de Las Flores still stand. 1981 holds the most, with 101.
Standing records at San Juan de Las Flores by the year they were set
Year setStanding records
198059
1981101
198246
198384
198460
198563
198636
198775
198869
198923
199027
199135
199251
199345
199436
199541
199648
199741
199825
199914
200025
200151
200245
200355
200417
200562
200643
200816
200923
201070
201160
201218

Wettest Day of Each Month

Sep: 312.9 mm (12.3 in)
Record daily precipitation for each month at San Juan de Las Flores The wettest day on record for each calendar month at San Juan de Las Flores. The most was 312.9 mm (12.3 in) on 25 September 1967. 0100200300400 Jan: 104.9 mm (4.1 in), 25 January 1980 Jan Feb: 94.5 mm (3.7 in), 1 February 1976 Feb Mar: 19.8 mm (0.8 in), 5 March 1968 Mar Apr: 39.9 mm (1.6 in), 3 April 1966 Apr May: 79.8 mm (3.1 in), 31 May 2004 May Jun: 270.3 mm (10.6 in), 16 June 2012 Jun Jul: 160.3 mm (6.3 in), 9 July 1987 Jul Aug: 210.8 mm (8.3 in), 23 August 1999 Aug Sep: 312.9 mm (12.3 in), 25 September 1967 Sep Oct: 189.0 mm (7.4 in), 5 October 2005 Oct Nov: 119.9 mm (4.7 in), 3 November 2002 Nov Dec: 84.8 mm (3.3 in), 14 December 1979 Dec
The wettest day on record for each calendar month at San Juan de Las Flores. The most was 312.9 mm (12.3 in) on 25 September 1967.
Record daily precipitation for each month at San Juan de Las Flores
MonthRecord daily precipitation (mm)Date
Jan104.9 mm (4.1 in)25 January 1980
Feb94.5 mm (3.7 in)1 February 1976
Mar19.8 mm (0.8 in)5 March 1968
Apr39.9 mm (1.6 in)3 April 1966
May79.8 mm (3.1 in)31 May 2004
Jun270.3 mm (10.6 in)16 June 2012
Jul160.3 mm (6.3 in)9 July 1987
Aug210.8 mm (8.3 in)23 August 1999
Sep312.9 mm (12.3 in)25 September 1967
Oct189.0 mm (7.4 in)5 October 2005
Nov119.9 mm (4.7 in)3 November 2002
Dec84.8 mm (3.3 in)14 December 1979

Period of Record Coverage

1980 to 2012
Days with data per year at San Juan de Las Flores 32 years of record at San Juan de Las Flores, 1980 to 2012. 4 years have data for under 90 percent of days and are left out of rankings: 1980, 1986, 2004, 2006. 1980: 225 of 366 days1981: 365 of 365 days1982: 334 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 212 of 365 days1987: 364 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 335 of 366 days1993: 334 of 365 days1994: 365 of 365 days1995: 334 of 365 days1996: 366 of 366 days1997: 335 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 333 of 365 days2003: 365 of 365 days2004: 305 of 366 days2005: 334 of 365 days2006: 303 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 335 of 366 days1980198519901995200020052010
32 years of record at San Juan de Las Flores, 1980 to 2012. 4 years have data for under 90 percent of days and are left out of rankings: 1980, 1986, 2004, 2006.
Days with data per year at San Juan de Las Flores
YearDays with dataShare of yearComplete
198022561%No
1981365100%Yes
198233492%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
198621258%No
1987364100%Yes
1988366100%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
199233592%Yes
199333492%Yes
1994365100%Yes
199533492%Yes
1996366100%Yes
199733592%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes
2001365100%Yes
200233391%Yes
2003365100%Yes
200430583%No
200533492%Yes
200630383%No
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
201233592%Yes

Latest Records

20
Latest records at San Juan de Las Flores
DateStationRecordValueBeat old record byOld record stoodSignificance
23 November 2012San Juan de Las Flores, MXmonthly high min (Tie)21.7 C (71.1 F)tie28 years5 of 100 (Routine)
20 November 2012San Juan de Las Flores, MXdaily low max23.9 C (75.0 F)1.7 C (3.1 F)32 years23 of 100 (Routine)
19 November 2012San Juan de Las Flores, MXdaily low max (Tie)23.9 C (75.0 F)tie6 years1 of 100 (Routine)
7 November 2012San Juan de Las Flores, MXdaily high max (Tie)30.0 C (86.0 F)tie23 years2 of 100 (Routine)
6 November 2012San Juan de Las Flores, MXdaily high max (Tie)30.0 C (86.0 F)tie17 years2 of 100 (Routine)
30 October 2012San Juan de Las Flores, MXdaily low max (Tie)25.0 C (77.0 F)tie31 years3 of 100 (Routine)
24 October 2012San Juan de Las Flores, MXdaily high max (Tie)30.0 C (86.0 F)tie25 years2 of 100 (Routine)
19 October 2012San Juan de Las Flores, MXdaily high max (Tie)30.0 C (86.0 F)tie11 years1 of 100 (Routine)
19 October 2012San Juan de Las Flores, MXdaily high min (Tie)21.7 C (71.1 F)tie6 years1 of 100 (Routine)
18 October 2012San Juan de Las Flores, MXdaily high max (Tie)30.0 C (86.0 F)tie11 years1 of 100 (Routine)
17 October 2012San Juan de Las Flores, MXdaily low min (Tie)18.9 C (66.0 F)tie26 years2 of 100 (Routine)
12 October 2012San Juan de Las Flores, MXdaily high max (Tie)30.0 C (86.0 F)tie12 years1 of 100 (Routine)
3 October 2012San Juan de Las Flores, MXdaily high max (Tie)30.0 C (86.0 F)tie6 years1 of 100 (Routine)
28 September 2012San Juan de Las Flores, MXdaily high max (Tie)28.9 C (84.0 F)tie18 years2 of 100 (Routine)
15 September 2012San Juan de Las Flores, MXdaily high min (Tie)20.6 C (69.1 F)tie31 years3 of 100 (Routine)
14 September 2012San Juan de Las Flores, MXdaily high max (Tie)30.0 C (86.0 F)tie30 years3 of 100 (Routine)
8 September 2012San Juan de Las Flores, MXdaily high min (Tie)20.6 C (69.1 F)tie30 years3 of 100 (Routine)
8 September 2012San Juan de Las Flores, MXdaily high max (Tie)28.9 C (84.0 F)tie18 years2 of 100 (Routine)
3 September 2012San Juan de Las Flores, MXdaily high min (Tie)20.6 C (69.1 F)tie32 years3 of 100 (Routine)
3 September 2012San Juan de Las Flores, MXdaily high max (Tie)30.6 C (87.1 F)tie3 years0 of 100 (Routine)

Climate Trend

19 complete years, 1981 to 2011
Annual mean temperature at San Juan de Las Flores as warming stripes, 1981 to 2011 One stripe for each of 19 complete years at San Juan de Las Flores, 1981 to 2011. Blue stripes are years cooler than the station's own mean of 24.1 C (75.4 F); red stripes are warmer. The coolest year was 1981, at 23.7 C (74.7 F), and the warmest was 2011, at 24.5 C (76.2 F). The strongest colour marks a difference of 0.5 C (0.9 F). 1981: 23.7 C, -0.4 C from the station mean1984: 23.7 C, -0.4 C from the station mean1985: 23.9 C, -0.2 C from the station mean1987: 24.0 C, -0.1 C from the station mean1988: 24.2 C, +0.1 C from the station mean1989: 23.7 C, -0.4 C from the station mean1990: 24.2 C, +0.1 C from the station mean1991: 24.2 C, +0.1 C from the station mean1994: 24.0 C, -0.2 C from the station mean1996: 24.4 C, +0.3 C from the station mean1998: 24.4 C, +0.2 C from the station mean1999: 24.4 C, +0.2 C from the station mean2000: 24.5 C, +0.4 C from the station mean2001: 24.5 C, +0.3 C from the station mean2003: 23.8 C, -0.4 C from the station mean2008: 24.0 C, -0.1 C from the station mean2009: 24.5 C, +0.4 C from the station mean2010: 23.9 C, -0.3 C from the station mean2011: 24.5 C, +0.4 C from the station mean1981198519901995200020052010
One stripe for each of 19 complete years at San Juan de Las Flores, 1981 to 2011. Blue stripes are years cooler than the station's own mean of 24.1 C (75.4 F); red stripes are warmer. The coolest year was 1981, at 23.7 C (74.7 F), and the warmest was 2011, at 24.5 C (76.2 F). The strongest colour marks a difference of 0.5 C (0.9 F).
Annual mean temperature at San Juan de Las Flores as warming stripes, 1981 to 2011
YearAnnual mean temperatureDifference from the station mean
198123.7 C-0.44 C
198423.7 C-0.40 C
198523.9 C-0.21 C
198724.0 C-0.12 C
198824.2 C+0.09 C
198923.7 C-0.42 C
199024.2 C+0.08 C
199124.2 C+0.06 C
199424.0 C-0.16 C
199624.4 C+0.26 C
199824.4 C+0.24 C
199924.4 C+0.24 C
200024.5 C+0.36 C
200124.5 C+0.33 C
200323.8 C-0.37 C
200824.0 C-0.15 C
200924.5 C+0.39 C
201023.9 C-0.26 C
201124.5 C+0.39 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

1965 to 2012
Yearly extremes at San Juan de Las Flores: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)35.6 C (96.1 F)199733.3 C (91.9 F)32
Coldest night (TNn)11.7 C (53.1 F)201016.4 C (61.5 F)32
Wettest day (Rx1day)312.9 mm (12.3 in)196793.0 mm (3.7 in)47
Wettest five days (Rx5day)736.7 mm (29.0 in)1984206.5 mm (8.1 in)47
Longest dry spell (CDD)158 days1993106 days47

Hottest day (TXx)

Hottest day (TXx) at San Juan de Las Flores by year The hottest day of the year at San Juan de Las Flores, 1965 to 2012. The record is 35.6 C (96.1 F) in 1997, marked on the chart; the median year is 33.3 C (91.9 F). 3032343619701980199020002010Record: 35.6 C (96.1 F) in 1997
The hottest day of the year at San Juan de Las Flores, 1965 to 2012. The record is 35.6 C (96.1 F) in 1997, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at San Juan de Las Flores by year
YearHottest day (TXx)
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
198035.0 C (95.0 F)
198135.0 C (95.0 F)
198231.7 C (89.1 F)
198335.0 C (95.0 F)
198432.2 C (90.0 F)
198532.8 C (91.0 F)
198631.1 C (88.0 F)
198732.8 C (91.0 F)
198832.2 C (90.0 F)
198931.7 C (89.1 F)
199032.8 C (91.0 F)
199133.9 C (93.0 F)
199233.3 C (91.9 F)
199333.9 C (93.0 F)
199433.3 C (91.9 F)
199533.9 C (93.0 F)
199632.8 C (91.0 F)
199735.6 C (96.1 F)
199833.9 C (93.0 F)
199932.8 C (91.0 F)
200031.7 C (89.1 F)
200132.8 C (91.0 F)
200232.8 C (91.0 F)
200332.8 C (91.0 F)
200433.3 C (91.9 F)
200535.0 C (95.0 F)
200633.9 C (93.0 F)
200833.9 C (93.0 F)
200933.9 C (93.0 F)
201033.9 C (93.0 F)
201135.6 C (96.1 F)
201232.8 C (91.0 F)

Coldest night (TNn)

Coldest night (TNn) at San Juan de Las Flores by year The coldest night of the year at San Juan de Las Flores, 1965 to 2012. The record is 11.7 C (53.1 F) in 2010, marked on the chart; the median year is 16.4 C (61.5 F). 101214161819701980199020002010Record: 11.7 C (53.1 F) in 2010
The coldest night of the year at San Juan de Las Flores, 1965 to 2012. The record is 11.7 C (53.1 F) in 2010, marked on the chart; the median year is 16.4 C (61.5 F).
Coldest night (TNn) at San Juan de Las Flores by year
YearColdest night (TNn)
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
198017.8 C (64.0 F)
198115.0 C (59.0 F)
198216.7 C (62.1 F)
198313.3 C (55.9 F)
198415.0 C (59.0 F)
198516.7 C (62.1 F)
198616.7 C (62.1 F)
198715.0 C (59.0 F)
198816.7 C (62.1 F)
198915.0 C (59.0 F)
199015.6 C (60.1 F)
199116.7 C (62.1 F)
199215.0 C (59.0 F)
199315.6 C (60.1 F)
199415.6 C (60.1 F)
199516.7 C (62.1 F)
199616.1 C (61.0 F)
199715.6 C (60.1 F)
199816.7 C (62.1 F)
199916.7 C (62.1 F)
200017.2 C (63.0 F)
200116.7 C (62.1 F)
200215.6 C (60.1 F)
200313.9 C (57.0 F)
200416.7 C (62.1 F)
200516.7 C (62.1 F)
200616.7 C (62.1 F)
200815.0 C (59.0 F)
200916.7 C (62.1 F)
201011.7 C (53.1 F)
201115.6 C (60.1 F)
201216.7 C (62.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at San Juan de Las Flores by year The wettest day of the year at San Juan de Las Flores, 1965 to 2012. The record is 312.9 mm (12.3 in) in 1967, marked on the chart; the median year is 93.0 mm (3.7 in). 010020030040019701980199020002010Record: 312.9 mm (12.3 in) in 1967
The wettest day of the year at San Juan de Las Flores, 1965 to 2012. The record is 312.9 mm (12.3 in) in 1967, marked on the chart; the median year is 93.0 mm (3.7 in).
Wettest day (Rx1day) at San Juan de Las Flores by year
YearWettest day (Rx1day)
196560.5 mm (2.4 in)
196674.9 mm (2.9 in)
1967312.9 mm (12.3 in)
196897.8 mm (3.9 in)
196971.9 mm (2.8 in)
1970110.0 mm (4.3 in)
1971174.8 mm (6.9 in)
1972182.9 mm (7.2 in)
1973247.9 mm (9.8 in)
197493.0 mm (3.7 in)
197581.8 mm (3.2 in)
1976117.9 mm (4.6 in)
197783.8 mm (3.3 in)
197874.9 mm (2.9 in)
197984.8 mm (3.3 in)
1980104.9 mm (4.1 in)
1981104.9 mm (4.1 in)
198282.8 mm (3.3 in)
198361.5 mm (2.4 in)
1984204.0 mm (8.0 in)
198555.9 mm (2.2 in)
1986108.0 mm (4.3 in)
1987160.3 mm (6.3 in)
1988129.8 mm (5.1 in)
198983.3 mm (3.3 in)
199087.4 mm (3.4 in)
1991105.9 mm (4.2 in)
199269.3 mm (2.7 in)
1993199.9 mm (7.9 in)
199475.9 mm (3.0 in)
199582.8 mm (3.3 in)
1996146.8 mm (5.8 in)
199786.9 mm (3.4 in)
1998128.8 mm (5.1 in)
1999210.8 mm (8.3 in)
200087.9 mm (3.5 in)
200159.9 mm (2.4 in)
2002119.9 mm (4.7 in)
200390.2 mm (3.6 in)
200479.8 mm (3.1 in)
2005189.0 mm (7.4 in)
2006127.0 mm (5.0 in)
200872.9 mm (2.9 in)
200971.1 mm (2.8 in)
201091.9 mm (3.6 in)
2011113.8 mm (4.5 in)
2012270.3 mm (10.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at San Juan de Las Flores by year The wettest five days of the year at San Juan de Las Flores, 1965 to 2012. The record is 736.7 mm (29.0 in) in 1984, marked on the chart; the median year is 206.5 mm (8.1 in). 020040060080019701980199020002010Record: 736.7 mm (29.0 in) in 1984
The wettest five days of the year at San Juan de Las Flores, 1965 to 2012. The record is 736.7 mm (29.0 in) in 1984, marked on the chart; the median year is 206.5 mm (8.1 in).
Wettest five days (Rx5day) at San Juan de Las Flores by year
YearWettest five days (Rx5day)
1965101.2 mm (4.0 in)
1966196.4 mm (7.7 in)
1967654.3 mm (25.8 in)
1968164.6 mm (6.5 in)
1969157.5 mm (6.2 in)
1970318.0 mm (12.5 in)
1971478.4 mm (18.8 in)
1972252.6 mm (9.9 in)
1973312.4 mm (12.3 in)
1974219.8 mm (8.7 in)
1975238.4 mm (9.4 in)
1976216.4 mm (8.5 in)
1977216.7 mm (8.5 in)
1978146.3 mm (5.8 in)
1979203.2 mm (8.0 in)
1980229.7 mm (9.0 in)
1981247.9 mm (9.8 in)
1982162.8 mm (6.4 in)
1983123.7 mm (4.9 in)
1984736.7 mm (29.0 in)
1985158.2 mm (6.2 in)
1986157.8 mm (6.2 in)
1987194.4 mm (7.7 in)
1988287.2 mm (11.3 in)
1989321.5 mm (12.7 in)
1990100.1 mm (3.9 in)
1991224.1 mm (8.8 in)
1992135.0 mm (5.3 in)
1993313.3 mm (12.3 in)
1994155.7 mm (6.1 in)
1995195.3 mm (7.7 in)
1996242.8 mm (9.6 in)
1997202.8 mm (8.0 in)
1998206.5 mm (8.1 in)
1999415.8 mm (16.4 in)
2000298.3 mm (11.7 in)
2001178.6 mm (7.0 in)
2002256.8 mm (10.1 in)
2003145.8 mm (5.7 in)
2004147.4 mm (5.8 in)
2005218.4 mm (8.6 in)
2006244.0 mm (9.6 in)
2008142.0 mm (5.6 in)
2009115.9 mm (4.6 in)
2010205.4 mm (8.1 in)
2011195.1 mm (7.7 in)
2012307.9 mm (12.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at San Juan de Las Flores by year The longest dry spell of the year at San Juan de Las Flores, 1965 to 2012. The record is 158 days in 1993, marked on the chart; the median year is 106 days. 05010015020019701980199020002010Record: 158 days in 1993
The longest dry spell of the year at San Juan de Las Flores, 1965 to 2012. The record is 158 days in 1993, marked on the chart; the median year is 106 days.
Longest dry spell (CDD) at San Juan de Las Flores by year
YearLongest dry spell (CDD)
196552 days
196692 days
196796 days
196863 days
196971 days
1970151 days
197153 days
1972107 days
197395 days
1974136 days
197598 days
197699 days
1977117 days
197874 days
1979106 days
1980115 days
198157 days
1982138 days
198370 days
198478 days
198571 days
198635 days
1987110 days
198895 days
1989151 days
199054 days
1991147 days
1992118 days
1993158 days
1994127 days
1995104 days
1996150 days
1997139 days
1998155 days
1999136 days
2000142 days
2001108 days
200287 days
200388 days
200461 days
2005110 days
2006133 days
2008140 days
2009133 days
2010112 days
201198 days
201297 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

41 years, 1966 to 2012

A day with at least 103.1 mm (4.1 in) of rain is expected about once in 2 years. A day with at least 397.7 mm (15.7 in) of rain is expected about once in 100 years.

Rainfall return levels at San Juan de Las Flores: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years103.1 mm (4.1 in)
5 years152.1 mm (6.0 in)
10 years194.0 mm (7.6 in)
25 years260.9 mm (10.3 in)
50 years323.0 mm (12.7 in)Longer than the 41 years of record
100 years397.7 mm (15.7 in)Longer than the 41 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, 41 years of values from 1966 to 2012.

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: 312.9 mm (12.3 in) in 1967; 270.3 mm (10.6 in) in 2012; 247.9 mm (9.8 in) in 1973.

Download the Data

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