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Tres Hermanos Weather Records (MXN00026102)

Record envelope, standing records and threshold days for Tres Hermanos (MXN00026102), Mexico, with 71 years of record.

Key Facts for Tres Hermanos

  • Tres Hermanos (MXN00026102) is a weather station in Mexico at 27.18 latitude and -109.18 longitude, 79 m (259 ft) above sea level.
  • The station reports from 1942 to 2012, 71 years of record.
  • 1,464 records set at Tres Hermanos still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Tres Hermanos set a daily record low minimum temperature of 6.7 C (44.1 F) on 12 November 2012.

About the Station

  • Location: Mexico, 27.18 latitude, -109.18 longitude.
  • Elevation: 79 m (259 ft).
  • Period of record: 1942 to 2012, 71 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 Tres Hermanos, with 2026 drawn through them The band shows the record high and record low for each calendar day at Tres Hermanos. 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 Tres Hermanos. 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 Tres Hermanos, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan39.4 C (102.9 F)-3.3 C (26.1 F)n/an/a
Feb40.6 C (105.1 F)-6.7 C (19.9 F)n/an/a
Mar42.2 C (108.0 F)0.6 C (33.1 F)n/an/a
Apr47.2 C (117.0 F)3.3 C (37.9 F)n/an/a
May46.1 C (115.0 F)7.2 C (45.0 F)n/an/a
Jun47.2 C (117.0 F)11.7 C (53.1 F)n/an/a
Jul48.9 C (120.0 F)16.7 C (62.1 F)n/an/a
Aug46.7 C (116.1 F)15.0 C (59.0 F)n/an/a
Sep44.4 C (111.9 F)15.6 C (60.1 F)n/an/a
Oct44.4 C (111.9 F)5.6 C (42.1 F)n/an/a
Nov41.7 C (107.1 F)-3.3 C (26.1 F)n/an/a
Dec38.3 C (100.9 F)-3.9 C (25.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Tres Hermanos by the year they were set 1,464 records at Tres Hermanos still stand. 1965 holds the most, with 95. 02550751001942: 51943: 151944: 411945: 201946: 291947: 161948: 331949: 231950: 181951: 281952: 241953: 181954: 111955: 171956: 161957: 191958: 231959: 81960: 181961: 151962: 181963: 131964: 441965: 951966: 81967: 241968: 151969: 221970: 61971: 151972: 241973: 661974: 251975: 171976: 201977: 291978: 181979: 191980: 171981: 141982: 111983: 201984: 151985: 271986: 121987: 211988: 211989: 161990: 161991: 181992: 121993: 91994: 41995: 411996: 111997: 171998: 171999: 102000: 152001: 142002: 152003: 162004: 162005: 172006: 242007: 272008: 152009: 282010: 192011: 322012: 22194219501958196619741982199019982006
1,464 records at Tres Hermanos still stand. 1965 holds the most, with 95.
Standing records at Tres Hermanos by the year they were set
Year setStanding records
19425
194315
194441
194520
194629
194716
194833
194923
195018
195128
195224
195318
195411
195517
195616
195719
195823
19598
196018
196115
196218
196313
196444
196595
19668
196724
196815
196922
19706
197115
197224
197366
197425
197517
197620
197729
197818
197919
198017
198114
198211
198320
198415
198527
198612
198721
198821
198916
199016
199118
199212
19939
19944
199541
199611
199717
199817
199910
200015
200114
200215
200316
200416
200517
200624
200727
200815
200928
201019
201132
201222

All-Time Record Progression

4 new records
When Tres Hermanos set new all-time records 4 all-time records were set at Tres Hermanos between 27 June 1974 and 4 February 2011. Each dot is a new record. Record high minimum temperatureRecord high maximum temperatureRecord low minimum temperature27 June 1974: Record high minimum temperature 31.1 C (88.0 F)25 July 2010: Record high maximum temperature 48.9 C (120.0 F)3 February 2011: Record low minimum temperature -6.1 C (21.0 F)4 February 2011: Record low minimum temperature -6.7 C (19.9 F)19751980198519901995200020052010
4 all-time records were set at Tres Hermanos between 27 June 1974 and 4 February 2011. Each dot is a new record.
When Tres Hermanos set new all-time records
DateKindDetail
1974-06-27Record high minimum temperatureRecord high minimum temperature 31.1 C (88.0 F)
2010-07-25Record high maximum temperatureRecord high maximum temperature 48.9 C (120.0 F)
2011-02-03Record low minimum temperatureRecord low minimum temperature -6.1 C (21.0 F)
2011-02-04Record low minimum temperatureRecord low minimum temperature -6.7 C (19.9 F)

Wettest Day of Each Month

Oct: 152.9 mm (6.0 in)
Record daily precipitation for each month at Tres Hermanos The wettest day on record for each calendar month at Tres Hermanos. The most was 152.9 mm (6.0 in) on 1 October 1959. 050100150200 Jan: 57.9 mm (2.3 in), 10 January 1960 Jan Feb: 46.0 mm (1.8 in), 1 February 1989 Feb Mar: 37.3 mm (1.5 in), 5 March 1958 Mar Apr: 34.3 mm (1.4 in), 11 April 1968 Apr May: 23.9 mm (0.9 in), 29 May 1972 May Jun: 79.0 mm (3.1 in), 28 June 1990 Jun Jul: 107.4 mm (4.2 in), 1 July 1993 Jul Aug: 117.3 mm (4.6 in), 6 August 1974 Aug Sep: 147.8 mm (5.8 in), 5 September 2007 Sep Oct: 152.9 mm (6.0 in), 1 October 1959 Oct Nov: 44.5 mm (1.8 in), 12 November 1994 Nov Dec: 97.3 mm (3.8 in), 10 December 1963 Dec
The wettest day on record for each calendar month at Tres Hermanos. The most was 152.9 mm (6.0 in) on 1 October 1959.
Record daily precipitation for each month at Tres Hermanos
MonthRecord daily precipitation (mm)Date
Jan57.9 mm (2.3 in)10 January 1960
Feb46.0 mm (1.8 in)1 February 1989
Mar37.3 mm (1.5 in)5 March 1958
Apr34.3 mm (1.4 in)11 April 1968
May23.9 mm (0.9 in)29 May 1972
Jun79.0 mm (3.1 in)28 June 1990
Jul107.4 mm (4.2 in)1 July 1993
Aug117.3 mm (4.6 in)6 August 1974
Sep147.8 mm (5.8 in)5 September 2007
Oct152.9 mm (6.0 in)1 October 1959
Nov44.5 mm (1.8 in)12 November 1994
Dec97.3 mm (3.8 in)10 December 1963

Period of Record Coverage

1942 to 2012
Days with data per year at Tres Hermanos 71 years of record at Tres Hermanos, 1942 to 2012. 4 years have data for under 90 percent of days and are left out of rankings: 1942, 1988, 1992, 2004. 1942: 93 of 365 days1943: 364 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 366 of 366 days1949: 365 of 365 days1950: 334 of 365 days1951: 364 of 365 days1952: 365 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 364 of 366 days1957: 364 of 365 days1958: 364 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 351 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 364 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 364 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 364 of 365 days1978: 364 of 365 days1979: 334 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 336 of 366 days1985: 334 of 365 days1986: 334 of 365 days1987: 364 of 365 days1988: 305 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 334 of 365 days1992: 306 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 335 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 364 of 365 days2002: 335 of 365 days2003: 365 of 365 days2004: 305 of 366 days2005: 337 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 days2012: 334 of 366 days1950196019701980199020002010
71 years of record at Tres Hermanos, 1942 to 2012. 4 years have data for under 90 percent of days and are left out of rankings: 1942, 1988, 1992, 2004.
Days with data per year at Tres Hermanos
YearDays with dataShare of yearComplete
19429325%No
1943364100%Yes
1944366100%Yes
1945365100%Yes
1946365100%Yes
1947365100%Yes
1948366100%Yes
1949365100%Yes
195033492%Yes
1951364100%Yes
1952365100%Yes
1953365100%Yes
1954365100%Yes
1955365100%Yes
195636499%Yes
1957364100%Yes
1958364100%Yes
1959365100%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
196435196%Yes
1965365100%Yes
1966365100%Yes
1967364100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974364100%Yes
1975365100%Yes
1976366100%Yes
1977364100%Yes
1978364100%Yes
197933492%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
198433692%Yes
198533492%Yes
198633492%Yes
1987364100%Yes
198830583%No
1989365100%Yes
1990365100%Yes
199133492%Yes
199230684%No
1993365100%Yes
1994365100%Yes
1995365100%Yes
199633592%Yes
1997365100%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes
2001364100%Yes
200233592%Yes
2003365100%Yes
200430583%No
200533792%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
201233491%Yes

Latest Records

20
Latest records at Tres Hermanos
DateStationRecordValueBeat old record byOld record stoodSignificance
12 November 2012Tres Hermanos, MXdaily low min6.7 C (44.1 F)0.5 C (0.9 F)65 years27 of 100 (Routine)
9 November 2012Tres Hermanos, MXdaily high min (Tie)20.6 C (69.1 F)tie39 years4 of 100 (Routine)
7 November 2012Tres Hermanos, MXdaily high max (Tie)40.0 C (104.0 F)tie5 years2 of 100 (Routine)
16 October 2012Tres Hermanos, MXdaily low max26.7 C (80.1 F)2.7 C (4.9 F)15 years19 of 100 (Routine)
15 October 2012Tres Hermanos, MXdaily low max27.8 C (82.0 F)1.1 C (2.0 F)32 years19 of 100 (Routine)
27 September 2012Tres Hermanos, MXdaily low max (Tie)30.0 C (86.0 F)tie42 years4 of 100 (Routine)
22 September 2012Tres Hermanos, MXdaily high max43.9 C (111.0 F)0.6 C (1.1 F)1 year9 of 100 (Routine)
19 August 2012Tres Hermanos, MXdaily rain89.9 mm (3.5 in)39.1 mm (1.5 in)24 years37 of 100 (Notable)
15 August 2012Tres Hermanos, MXdaily low max30.6 C (87.1 F)0.5 C (0.9 F)53 years23 of 100 (Routine)
13 August 2012Tres Hermanos, MXdaily high min (Tie)27.8 C (82.0 F)tie36 years4 of 100 (Routine)
12 August 2012Tres Hermanos, MXdaily high max42.8 C (109.0 F)1.1 C (2.0 F)9 years12 of 100 (Routine)
11 August 2012Tres Hermanos, MXmonthly high max46.7 C (116.1 F)1.1 C (2.0 F)1 year20 of 100 (Routine)
10 August 2012Tres Hermanos, MXdaily low min (Tie)20.6 C (69.1 F)tie64 years6 of 100 (Routine)
9 August 2012Tres Hermanos, MXdaily high max (Tie)41.7 C (107.1 F)tie62 years6 of 100 (Routine)
26 July 2012Tres Hermanos, MXdaily low min (Tie)21.1 C (70.0 F)tie28 years3 of 100 (Routine)
3 July 2012Tres Hermanos, MXdaily rain51.8 mm (2.0 in)22.8 mm (0.9 in)11 years25 of 100 (Routine)
2 July 2012Tres Hermanos, MXdaily rain50.8 mm (2.0 in)8.9 mm (0.35 in)1 year13 of 100 (Routine)
31 May 2012Tres Hermanos, MXdaily low min11.7 C (53.1 F)0.5 C (0.9 F)24 years15 of 100 (Routine)
30 May 2012Tres Hermanos, MXdaily high max43.9 C (111.0 F)0.6 C (1.1 F)51 years23 of 100 (Routine)
21 May 2012Tres Hermanos, MXdaily high max (Tie)42.8 C (109.0 F)tie64 years6 of 100 (Routine)

Climate Trend

56 complete years, 1943 to 2011
Annual mean temperature at Tres Hermanos as warming stripes, 1943 to 2011 One stripe for each of 56 complete years at Tres Hermanos, 1943 to 2011. Blue stripes are years cooler than the station's own mean of 24.9 C (76.9 F); red stripes are warmer. The coolest year was 1995, at 24.0 C (75.1 F), and the warmest was 1965, at 27.8 C (82.0 F). The strongest colour marks a difference of 2.9 C (5.2 F). 1943: 25.3 C, +0.4 C from the station mean1944: 24.6 C, -0.3 C from the station mean1945: 25.2 C, +0.2 C from the station mean1946: 25.2 C, +0.3 C from the station mean1947: 25.1 C, +0.1 C from the station mean1948: 25.3 C, +0.4 C from the station mean1949: 24.5 C, -0.4 C from the station mean1951: 25.7 C, +0.7 C from the station mean1952: 25.2 C, +0.3 C from the station mean1953: 25.2 C, +0.2 C from the station mean1954: 25.3 C, +0.3 C from the station mean1955: 24.5 C, -0.5 C from the station mean1956: 24.9 C, 0.0 C from the station mean1957: 25.0 C, 0.0 C from the station mean1958: 24.8 C, -0.2 C from the station mean1959: 24.9 C, -0.1 C from the station mean1960: 24.2 C, -0.8 C from the station mean1961: 24.3 C, -0.6 C from the station mean1962: 24.6 C, -0.3 C from the station mean1963: 24.8 C, -0.1 C from the station mean1965: 27.8 C, +2.8 C from the station mean1966: 25.7 C, +0.8 C from the station mean1967: 25.6 C, +0.7 C from the station mean1968: 25.4 C, +0.5 C from the station mean1969: 25.9 C, +0.9 C from the station mean1970: 25.2 C, +0.2 C from the station mean1971: 24.7 C, -0.3 C from the station mean1972: 25.3 C, +0.4 C from the station mean1973: 25.7 C, +0.8 C from the station mean1974: 25.5 C, +0.5 C from the station mean1975: 24.8 C, -0.2 C from the station mean1976: 25.4 C, +0.5 C from the station mean1977: 24.3 C, -0.6 C from the station mean1978: 24.2 C, -0.8 C from the station mean1980: 24.3 C, -0.7 C from the station mean1981: 24.9 C, 0.0 C from the station mean1982: 24.8 C, -0.1 C from the station mean1983: 24.6 C, -0.3 C from the station mean1987: 24.8 C, -0.2 C from the station mean1989: 24.4 C, -0.5 C from the station mean1990: 24.1 C, -0.9 C from the station mean1993: 24.8 C, -0.2 C from the station mean1994: 25.0 C, 0.0 C from the station mean1995: 24.0 C, -1.0 C from the station mean1997: 24.6 C, -0.3 C from the station mean1998: 24.1 C, -0.9 C from the station mean1999: 24.0 C, -1.0 C from the station mean2000: 25.1 C, +0.1 C from the station mean2001: 25.5 C, +0.5 C from the station mean2003: 25.5 C, +0.6 C from the station mean2006: 25.4 C, +0.5 C from the station mean2007: 24.6 C, -0.3 C from the station mean2008: 24.6 C, -0.3 C from the station mean2009: 25.2 C, +0.2 C from the station mean2010: 24.6 C, -0.4 C from the station mean2011: 24.4 C, -0.6 C from the station mean19431950196019701980199020002010
One stripe for each of 56 complete years at Tres Hermanos, 1943 to 2011. Blue stripes are years cooler than the station's own mean of 24.9 C (76.9 F); red stripes are warmer. The coolest year was 1995, at 24.0 C (75.1 F), and the warmest was 1965, at 27.8 C (82.0 F). The strongest colour marks a difference of 2.9 C (5.2 F).
Annual mean temperature at Tres Hermanos as warming stripes, 1943 to 2011
YearAnnual mean temperatureDifference from the station mean
194325.3 C+0.36 C
194424.6 C-0.32 C
194525.2 C+0.22 C
194625.2 C+0.29 C
194725.1 C+0.12 C
194825.3 C+0.36 C
194924.5 C-0.42 C
195125.7 C+0.72 C
195225.2 C+0.26 C
195325.2 C+0.25 C
195425.3 C+0.34 C
195524.5 C-0.49 C
195624.9 C-0.04 C
195725.0 C+0.03 C
195824.8 C-0.17 C
195924.9 C-0.09 C
196024.2 C-0.76 C
196124.3 C-0.62 C
196224.6 C-0.32 C
196324.8 C-0.11 C
196527.8 C+2.85 C
196625.7 C+0.77 C
196725.6 C+0.70 C
196825.4 C+0.46 C
196925.9 C+0.95 C
197025.2 C+0.25 C
197124.7 C-0.29 C
197225.3 C+0.36 C
197325.7 C+0.79 C
197425.5 C+0.51 C
197524.8 C-0.18 C
197625.4 C+0.49 C
197724.3 C-0.64 C
197824.2 C-0.78 C
198024.3 C-0.68 C
198124.9 C0.00 C
198224.8 C-0.10 C
198324.6 C-0.31 C
198724.8 C-0.15 C
198924.4 C-0.54 C
199024.1 C-0.85 C
199324.8 C-0.18 C
199425.0 C+0.02 C
199524.0 C-0.99 C
199724.6 C-0.32 C
199824.1 C-0.87 C
199924.0 C-0.96 C
200025.1 C+0.13 C
200125.5 C+0.51 C
200325.5 C+0.58 C
200625.4 C+0.49 C
200724.6 C-0.34 C
200824.6 C-0.33 C
200925.2 C+0.21 C
201024.6 C-0.35 C
201124.4 C-0.59 C

The fitted trend in annual mean temperature here over 1943 to 2011 is -0.07 C (-0.16 to 0.01) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.13 F (-0.28 to 0.01) 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 Tres Hermanos
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.07 C (-0.16 to 0.01) per decade-0.13 F (-0.28 to 0.01) per decade1943 to 201156Not clearly different from zero
Mean daily maximum0.1 C (-0.1 to 0.2) per decade0.1 F (-0.1 to 0.3) per decade1943 to 201156Not clearly different from zero
Mean daily minimum-0.2 C (-0.3 to -0.1) per decade-0.4 F (-0.6 to -0.1) per decade1943 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

1942 to 2012
Yearly extremes at Tres Hermanos: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)48.9 C (120.0 F)201044.4 C (111.9 F)71
Coldest night (TNn)-6.7 C (19.9 F)20111.7 C (35.1 F)71
Wettest day (Rx1day)152.9 mm (6.0 in)195962.0 mm (2.4 in)71
Wettest five days (Rx5day)274.4 mm (10.8 in)200895.8 mm (3.8 in)71
Longest dry spell (CDD)182 days2011103 days71

Hottest day (TXx)

Hottest day (TXx) at Tres Hermanos by year The hottest day of the year at Tres Hermanos, 1942 to 2012. The record is 48.9 C (120.0 F) in 2010, marked on the chart; the median year is 44.4 C (111.9 F). 404244464850196019802000Record: 48.9 C (120.0 F) in 2010
The hottest day of the year at Tres Hermanos, 1942 to 2012. The record is 48.9 C (120.0 F) in 2010, marked on the chart; the median year is 44.4 C (111.9 F).
Hottest day (TXx) at Tres Hermanos by year
YearHottest day (TXx)
194245.0 C (113.0 F)
194345.0 C (113.0 F)
194446.1 C (115.0 F)
194547.2 C (117.0 F)
194644.4 C (111.9 F)
194745.6 C (114.1 F)
194845.0 C (113.0 F)
194944.4 C (111.9 F)
195045.0 C (113.0 F)
195144.4 C (111.9 F)
195243.3 C (109.9 F)
195344.4 C (111.9 F)
195441.7 C (107.1 F)
195543.9 C (111.0 F)
195642.8 C (109.0 F)
195742.8 C (109.0 F)
195845.0 C (113.0 F)
195942.2 C (108.0 F)
196042.8 C (109.0 F)
196143.3 C (109.9 F)
196241.7 C (107.1 F)
196342.8 C (109.0 F)
196445.0 C (113.0 F)
196547.2 C (117.0 F)
196643.9 C (111.0 F)
196743.9 C (111.0 F)
196843.3 C (109.9 F)
196943.9 C (111.0 F)
197043.3 C (109.9 F)
197142.2 C (108.0 F)
197242.2 C (108.0 F)
197342.8 C (109.0 F)
197442.2 C (108.0 F)
197541.7 C (107.1 F)
197644.4 C (111.9 F)
197742.2 C (108.0 F)
197842.2 C (108.0 F)
197943.9 C (111.0 F)
198045.0 C (113.0 F)
198144.4 C (111.9 F)
198244.4 C (111.9 F)
198345.0 C (113.0 F)
198442.8 C (109.0 F)
198543.9 C (111.0 F)
198642.8 C (109.0 F)
198745.0 C (113.0 F)
198843.9 C (111.0 F)
198943.3 C (109.9 F)
199043.3 C (109.9 F)
199143.3 C (109.9 F)
199242.8 C (109.0 F)
199345.6 C (114.1 F)
199443.3 C (109.9 F)
199542.8 C (109.0 F)
199642.2 C (108.0 F)
199745.0 C (113.0 F)
199845.0 C (113.0 F)
199945.0 C (113.0 F)
200045.0 C (113.0 F)
200146.1 C (115.0 F)
200245.0 C (113.0 F)
200345.0 C (113.0 F)
200446.1 C (115.0 F)
200545.0 C (113.0 F)
200645.6 C (114.1 F)
200746.1 C (115.0 F)
200845.0 C (113.0 F)
200945.0 C (113.0 F)
201048.9 C (120.0 F)
201144.4 C (111.9 F)
201246.7 C (116.1 F)

Coldest night (TNn)

Coldest night (TNn) at Tres Hermanos by year The coldest night of the year at Tres Hermanos, 1942 to 2012. The record is -6.7 C (19.9 F) in 2011, marked on the chart; the median year is 1.7 C (35.1 F). -10-50510196019802000Record: -6.7 C (19.9 F) in 2011
The coldest night of the year at Tres Hermanos, 1942 to 2012. The record is -6.7 C (19.9 F) in 2011, marked on the chart; the median year is 1.7 C (35.1 F).
Coldest night (TNn) at Tres Hermanos by year
YearColdest night (TNn)
19425.0 C (41.0 F)
19432.8 C (37.0 F)
19442.2 C (36.0 F)
19453.9 C (39.0 F)
19461.7 C (35.1 F)
19472.2 C (36.0 F)
19480.0 C (32.0 F)
19490.0 C (32.0 F)
19505.0 C (41.0 F)
19512.8 C (37.0 F)
19521.1 C (34.0 F)
19530.0 C (32.0 F)
1954-3.9 C (25.0 F)
19550.0 C (32.0 F)
1956-2.8 C (27.0 F)
1957-0.6 C (30.9 F)
19583.9 C (39.0 F)
19591.7 C (35.1 F)
1960-1.1 C (30.0 F)
19611.7 C (35.1 F)
19620.6 C (33.1 F)
1963-0.6 C (30.9 F)
19641.7 C (35.1 F)
19653.9 C (39.0 F)
19662.2 C (36.0 F)
19674.4 C (39.9 F)
19685.0 C (41.0 F)
19695.0 C (41.0 F)
19706.1 C (43.0 F)
1971-3.3 C (26.1 F)
19724.4 C (39.9 F)
19735.0 C (41.0 F)
19745.6 C (42.1 F)
19752.8 C (37.0 F)
19765.6 C (42.1 F)
19771.7 C (35.1 F)
19780.0 C (32.0 F)
1979-3.3 C (26.1 F)
19802.8 C (37.0 F)
19811.7 C (35.1 F)
19822.2 C (36.0 F)
19833.9 C (39.0 F)
19841.1 C (34.0 F)
19850.6 C (33.1 F)
19860.6 C (33.1 F)
1987-0.6 C (30.9 F)
1988-1.7 C (28.9 F)
1989-0.6 C (30.9 F)
19902.2 C (36.0 F)
19911.1 C (34.0 F)
19921.7 C (35.1 F)
19935.0 C (41.0 F)
19941.1 C (34.0 F)
19953.9 C (39.0 F)
19962.2 C (36.0 F)
1997-2.8 C (27.0 F)
19981.7 C (35.1 F)
19990.0 C (32.0 F)
20000.6 C (33.1 F)
20010.6 C (33.1 F)
20021.1 C (34.0 F)
2003-2.2 C (28.0 F)
20042.2 C (36.0 F)
20053.3 C (37.9 F)
2006-1.1 C (30.0 F)
20070.6 C (33.1 F)
20081.1 C (34.0 F)
20092.2 C (36.0 F)
20100.0 C (32.0 F)
2011-6.7 C (19.9 F)
20122.2 C (36.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Tres Hermanos by year The wettest day of the year at Tres Hermanos, 1942 to 2012. The record is 152.9 mm (6.0 in) in 1959, marked on the chart; the median year is 62.0 mm (2.4 in). 050100150200196019802000Record: 152.9 mm (6.0 in) in 1959
The wettest day of the year at Tres Hermanos, 1942 to 2012. The record is 152.9 mm (6.0 in) in 1959, marked on the chart; the median year is 62.0 mm (2.4 in).
Wettest day (Rx1day) at Tres Hermanos by year
YearWettest day (Rx1day)
194263.5 mm (2.5 in)
194374.4 mm (2.9 in)
194445.0 mm (1.8 in)
194583.3 mm (3.3 in)
194665.3 mm (2.6 in)
194767.6 mm (2.7 in)
194856.6 mm (2.2 in)
194970.6 mm (2.8 in)
195049.8 mm (2.0 in)
195189.9 mm (3.5 in)
195296.8 mm (3.8 in)
195339.9 mm (1.6 in)
195478.0 mm (3.1 in)
195582.3 mm (3.2 in)
195654.4 mm (2.1 in)
195758.9 mm (2.3 in)
1958111.0 mm (4.4 in)
1959152.9 mm (6.0 in)
196084.6 mm (3.3 in)
196149.8 mm (2.0 in)
196235.8 mm (1.4 in)
196397.3 mm (3.8 in)
196436.3 mm (1.4 in)
196560.2 mm (2.4 in)
196663.8 mm (2.5 in)
196769.3 mm (2.7 in)
196848.8 mm (1.9 in)
196950.0 mm (2.0 in)
197048.8 mm (1.9 in)
197171.9 mm (2.8 in)
197251.8 mm (2.0 in)
197350.8 mm (2.0 in)
1974117.3 mm (4.6 in)
197569.9 mm (2.8 in)
197659.9 mm (2.4 in)
197754.4 mm (2.1 in)
197860.5 mm (2.4 in)
197952.8 mm (2.1 in)
198057.9 mm (2.3 in)
198141.4 mm (1.6 in)
198279.8 mm (3.1 in)
198372.9 mm (2.9 in)
198475.9 mm (3.0 in)
198563.8 mm (2.5 in)
198691.9 mm (3.6 in)
198750.8 mm (2.0 in)
198859.9 mm (2.4 in)
198946.0 mm (1.8 in)
199079.0 mm (3.1 in)
199160.5 mm (2.4 in)
199268.1 mm (2.7 in)
1993107.4 mm (4.2 in)
199444.5 mm (1.8 in)
199598.8 mm (3.9 in)
199650.8 mm (2.0 in)
199762.0 mm (2.4 in)
199847.0 mm (1.9 in)
199954.9 mm (2.2 in)
200034.8 mm (1.4 in)
200151.6 mm (2.0 in)
200256.4 mm (2.2 in)
200365.8 mm (2.6 in)
200481.8 mm (3.2 in)
200542.7 mm (1.7 in)
200673.9 mm (2.9 in)
2007147.8 mm (5.8 in)
200895.0 mm (3.7 in)
200968.6 mm (2.7 in)
201057.9 mm (2.3 in)
201153.8 mm (2.1 in)
201289.9 mm (3.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Tres Hermanos by year The wettest five days of the year at Tres Hermanos, 1942 to 2012. The record is 274.4 mm (10.8 in) in 2008, marked on the chart; the median year is 95.8 mm (3.8 in). 0100200300196019802000Record: 274.4 mm (10.8 in) in 2008
The wettest five days of the year at Tres Hermanos, 1942 to 2012. The record is 274.4 mm (10.8 in) in 2008, marked on the chart; the median year is 95.8 mm (3.8 in).
Wettest five days (Rx5day) at Tres Hermanos by year
YearWettest five days (Rx5day)
1942133.1 mm (5.2 in)
1943103.2 mm (4.1 in)
194467.9 mm (2.7 in)
1945117.9 mm (4.6 in)
194682.7 mm (3.3 in)
194793.3 mm (3.7 in)
194893.9 mm (3.7 in)
194977.8 mm (3.1 in)
1950102.9 mm (4.1 in)
1951109.5 mm (4.3 in)
1952154.5 mm (6.1 in)
195344.2 mm (1.7 in)
195489.2 mm (3.5 in)
1955144.3 mm (5.7 in)
195695.1 mm (3.7 in)
1957123.0 mm (4.8 in)
1958152.9 mm (6.0 in)
1959230.9 mm (9.1 in)
1960107.5 mm (4.2 in)
196195.3 mm (3.8 in)
196256.6 mm (2.2 in)
1963117.1 mm (4.6 in)
196458.4 mm (2.3 in)
196568.3 mm (2.7 in)
196690.5 mm (3.6 in)
196775.5 mm (3.0 in)
196869.9 mm (2.8 in)
196988.1 mm (3.5 in)
1970126.0 mm (5.0 in)
1971136.4 mm (5.4 in)
197295.8 mm (3.8 in)
197361.5 mm (2.4 in)
1974140.7 mm (5.5 in)
1975141.8 mm (5.6 in)
1976115.3 mm (4.5 in)
197796.8 mm (3.8 in)
197874.2 mm (2.9 in)
1979129.8 mm (5.1 in)
198098.8 mm (3.9 in)
198174.5 mm (2.9 in)
1982115.1 mm (4.5 in)
198397.5 mm (3.8 in)
1984103.4 mm (4.1 in)
198567.6 mm (2.7 in)
1986116.9 mm (4.6 in)
198786.1 mm (3.4 in)
198893.8 mm (3.7 in)
198961.2 mm (2.4 in)
199094.8 mm (3.7 in)
199172.2 mm (2.8 in)
199292.1 mm (3.6 in)
1993122.4 mm (4.8 in)
199474.2 mm (2.9 in)
1995220.5 mm (8.7 in)
1996109.5 mm (4.3 in)
199788.2 mm (3.5 in)
1998104.6 mm (4.1 in)
199979.7 mm (3.1 in)
200063.3 mm (2.5 in)
200196.3 mm (3.8 in)
200288.4 mm (3.5 in)
200382.1 mm (3.2 in)
200488.6 mm (3.5 in)
200571.4 mm (2.8 in)
200695.0 mm (3.7 in)
2007182.1 mm (7.2 in)
2008274.4 mm (10.8 in)
200999.9 mm (3.9 in)
2010130.0 mm (5.1 in)
2011119.1 mm (4.7 in)
2012112.0 mm (4.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Tres Hermanos by year The longest dry spell of the year at Tres Hermanos, 1942 to 2012. The record is 182 days in 2011, marked on the chart; the median year is 103 days. 050100150200196019802000Record: 182 days in 2011
The longest dry spell of the year at Tres Hermanos, 1942 to 2012. The record is 182 days in 2011, marked on the chart; the median year is 103 days.
Longest dry spell (CDD) at Tres Hermanos by year
YearLongest dry spell (CDD)
194227 days
1943152 days
194443 days
1945141 days
1946113 days
194763 days
1948126 days
1949137 days
195060 days
195194 days
195272 days
195371 days
195468 days
1955144 days
195648 days
195791 days
195881 days
195975 days
1960168 days
196170 days
1962109 days
1963134 days
196461 days
1965110 days
196693 days
1967106 days
196881 days
1969128 days
1970102 days
1971116 days
197262 days
1973104 days
197485 days
1975111 days
1976102 days
197795 days
197868 days
1979101 days
1980180 days
198157 days
1982104 days
198390 days
1984112 days
198557 days
198678 days
1987147 days
198876 days
198989 days
1990109 days
1991121 days
199244 days
1993116 days
1994168 days
1995130 days
1996154 days
199761 days
199865 days
1999103 days
2000107 days
2001122 days
2002163 days
200385 days
200494 days
2005133 days
200676 days
2007149 days
2008154 days
2009176 days
2010156 days
2011182 days
2012136 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

68 years, 1943 to 2012

A day with at least 62.5 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 154.5 mm (6.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Tres Hermanos: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years62.5 mm (2.5 in)
5 years83.0 mm (3.3 in)
10 years98.1 mm (3.9 in)
25 years119.1 mm (4.7 in)
50 years136.1 mm (5.4 in)
100 years154.5 mm (6.1 in)Longer than the 68 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, 68 years of values from 1943 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: 152.9 mm (6.0 in) in 1959; 147.8 mm (5.8 in) in 2007; 117.3 mm (4.6 in) in 1974.

Download the Data

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