Daily records
Page built 2026-10-16
Data as of 2025-12-31
Search
Built 2026-10-16 (16 October 2026)

Ex Hacienda San Diego Weather Records (MXN00014064)

Record envelope, standing records and threshold days for Ex Hacienda San Diego (MXN00014064), Mexico, with 40 years of record.

Key Facts for Ex Hacienda San Diego

  • Ex Hacienda San Diego (MXN00014064) is a weather station in Mexico at 20.33 latitude and -103.80 longitude, 1,388 m (4,553 ft) above sea level.
  • The station reports from 1947 to 1986, 40 years of record.
  • 1,464 records set at Ex Hacienda San Diego still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Ex Hacienda San Diego tied a daily record low maximum temperature of 23.9 C (75.0 F) on 20 August 1986.

About the Station

  • Location: Mexico, 20.33 latitude, -103.80 longitude.
  • Elevation: 1,388 m (4,553 ft).
  • Period of record: 1947 to 1986, 40 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 Ex Hacienda San Diego, with 2026 drawn through them The band shows the record high and record low for each calendar day at Ex Hacienda San Diego. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Ex Hacienda San Diego. 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 Ex Hacienda San Diego, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan33.9 C (93.0 F)1.7 C (35.1 F)n/an/a
Feb34.4 C (93.9 F)1.7 C (35.1 F)n/an/a
Mar35.6 C (96.1 F)3.9 C (39.0 F)n/an/a
Apr38.9 C (102.0 F)0.6 C (33.1 F)n/an/a
May38.9 C (102.0 F)7.2 C (45.0 F)n/an/a
Jun37.8 C (100.0 F)6.7 C (44.1 F)n/an/a
Jul35.0 C (95.0 F)6.7 C (44.1 F)n/an/a
Aug35.6 C (96.1 F)7.2 C (45.0 F)n/an/a
Sep33.9 C (93.0 F)6.7 C (44.1 F)n/an/a
Oct32.8 C (91.0 F)5.6 C (42.1 F)n/an/a
Nov33.9 C (93.0 F)3.9 C (39.0 F)n/an/a
Dec33.3 C (91.9 F)2.8 C (37.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Ex Hacienda San Diego by the year they were set 1,464 records at Ex Hacienda San Diego still stand. 1964 holds the most, with 149. 0501001501947: 591948: 611949: 481950: 481951: 451952: 361953: 951954: 741955: 301956: 211957: 361958: 311959: 201960: 311961: 11962: 81963: 11964: 1491965: 791966: 341967: 261968: 211969: 331970: 551971: 111972: 161973: 251974: 401975: 111976: 241977: 111978: 101979: 171980: 121981: 901982: 111983: 481984: 51985: 741986: 171947195119551959196319671971197519791983
1,464 records at Ex Hacienda San Diego still stand. 1964 holds the most, with 149.
Standing records at Ex Hacienda San Diego by the year they were set
Year setStanding records
194759
194861
194948
195048
195145
195236
195395
195474
195530
195621
195736
195831
195920
196031
19611
19628
19631
1964149
196579
196634
196726
196821
196933
197055
197111
197216
197325
197440
197511
197624
197711
197810
197917
198012
198190
198211
198348
19845
198574
198617

All-Time Record Progression

1 new records
When Ex Hacienda San Diego set new all-time records 1 all-time records were set at Ex Hacienda San Diego between 20 May 1981 and 20 May 1981. Each dot is a new record. Record high minimum temperature20 May 1981: Record high minimum temperature 24.4 C (75.9 F)
1 all-time records were set at Ex Hacienda San Diego between 20 May 1981 and 20 May 1981. Each dot is a new record.
When Ex Hacienda San Diego set new all-time records
DateKindDetail
1981-05-20Record high minimum temperatureRecord high minimum temperature 24.4 C (75.9 F)

Wettest Day of Each Month

Jul: 118.4 mm (4.7 in)
Record daily precipitation for each month at Ex Hacienda San Diego The wettest day on record for each calendar month at Ex Hacienda San Diego. The most was 118.4 mm (4.7 in) on 31 July 1962. 050100150 Jan: 26.9 mm (1.1 in), 11 January 1967 Jan Feb: 39.9 mm (1.6 in), 11 February 1970 Feb Mar: 52.6 mm (2.1 in), 30 March 1968 Mar Apr: 30.0 mm (1.2 in), 28 April 1974 Apr May: 42.9 mm (1.7 in), 25 May 1953 May Jun: 108.5 mm (4.3 in), 16 June 1959 Jun Jul: 118.4 mm (4.7 in), 31 July 1962 Jul Aug: 64.8 mm (2.6 in), 1 August 1985 Aug Sep: 79.8 mm (3.1 in), 23 September 1984 Sep Oct: 34.8 mm (1.4 in), 17 October 1958 Oct Nov: 69.9 mm (2.8 in), 22 November 1969 Nov Dec: 41.9 mm (1.6 in), 12 December 1960 Dec
The wettest day on record for each calendar month at Ex Hacienda San Diego. The most was 118.4 mm (4.7 in) on 31 July 1962.
Record daily precipitation for each month at Ex Hacienda San Diego
MonthRecord daily precipitation (mm)Date
Jan26.9 mm (1.1 in)11 January 1967
Feb39.9 mm (1.6 in)11 February 1970
Mar52.6 mm (2.1 in)30 March 1968
Apr30.0 mm (1.2 in)28 April 1974
May42.9 mm (1.7 in)25 May 1953
Jun108.5 mm (4.3 in)16 June 1959
Jul118.4 mm (4.7 in)31 July 1962
Aug64.8 mm (2.6 in)1 August 1985
Sep79.8 mm (3.1 in)23 September 1984
Oct34.8 mm (1.4 in)17 October 1958
Nov69.9 mm (2.8 in)22 November 1969
Dec41.9 mm (1.6 in)12 December 1960

Period of Record Coverage

1947 to 1986
Days with data per year at Ex Hacienda San Diego 40 years of record at Ex Hacienda San Diego, 1947 to 1986. 7 years have data for under 90 percent of days and are left out of rankings: 1947, 1951, 1968, 1979, 1980, 1984, 1986. 1947: 169 of 365 days1948: 360 of 366 days1949: 359 of 365 days1950: 357 of 365 days1951: 303 of 365 days1952: 364 of 366 days1953: 347 of 365 days1954: 359 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: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 304 of 366 days1969: 364 of 365 days1970: 334 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 358 of 365 days1974: 362 of 365 days1975: 345 of 365 days1976: 353 of 366 days1977: 360 of 365 days1978: 334 of 365 days1979: 211 of 365 days1980: 212 of 366 days1981: 334 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 300 of 366 days1985: 357 of 365 days1986: 243 of 365 days19501955196019651970197519801985
40 years of record at Ex Hacienda San Diego, 1947 to 1986. 7 years have data for under 90 percent of days and are left out of rankings: 1947, 1951, 1968, 1979, 1980, 1984, 1986.
Days with data per year at Ex Hacienda San Diego
YearDays with dataShare of yearComplete
194716946%No
194836098%Yes
194935998%Yes
195035798%Yes
195130383%No
195236499%Yes
195334795%Yes
195435998%Yes
1955365100%Yes
1956365100%Yes
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
196830483%No
1969364100%Yes
197033492%Yes
1971365100%Yes
1972366100%Yes
197335898%Yes
197436299%Yes
197534595%Yes
197635396%Yes
197736099%Yes
197833492%Yes
197921158%No
198021258%No
198133492%Yes
1982365100%Yes
1983365100%Yes
198430082%No
198535798%Yes
198624367%No

Latest Records

20
Latest records at Ex Hacienda San Diego
DateStationRecordValueBeat old record byOld record stoodSignificance
20 August 1986Ex Hacienda San Diego, MXdaily low max (Tie)23.9 C (75.0 F)tie31 years3 of 100 (Routine)
19 August 1986Ex Hacienda San Diego, MXdaily low max22.8 C (73.0 F)1.1 C (2.0 F)37 years19 of 100 (Routine)
15 August 1986Ex Hacienda San Diego, MXdaily low max22.8 C (73.0 F)1.1 C (2.0 F)29 years16 of 100 (Routine)
15 August 1986Ex Hacienda San Diego, MXdaily rain (Tie)45.0 mm (1.8 in)tie37 years3 of 100 (Routine)
14 August 1986Ex Hacienda San Diego, MXdaily low max23.3 C (73.9 F)0.6 C (1.1 F)39 years17 of 100 (Routine)
13 August 1986Ex Hacienda San Diego, MXdaily low max (Tie)23.9 C (75.0 F)tie4 years1 of 100 (Routine)
12 August 1986Ex Hacienda San Diego, MXdaily low max22.8 C (73.0 F)1.1 C (2.0 F)29 years16 of 100 (Routine)
6 August 1986Ex Hacienda San Diego, MXdaily low max (Tie)23.9 C (75.0 F)tie39 years3 of 100 (Routine)
23 July 1986Ex Hacienda San Diego, MXdaily rain39.9 mm (1.6 in)6.4 mm (0.25 in)31 years17 of 100 (Routine)
20 July 1986Ex Hacienda San Diego, MXdaily rain34.8 mm (1.4 in)4.3 mm (0.17 in)19 years12 of 100 (Routine)
8 July 1986Ex Hacienda San Diego, MXdaily rain45.0 mm (1.8 in)4.6 mm (0.18 in)36 years18 of 100 (Routine)
28 June 1986Ex Hacienda San Diego, MXdaily rain54.9 mm (2.2 in)8.9 mm (0.35 in)36 years21 of 100 (Routine)
24 June 1986Ex Hacienda San Diego, MXdaily rain54.9 mm (2.2 in)3.1 mm (0.12 in)27 years14 of 100 (Routine)
24 June 1986Ex Hacienda San Diego, MXdaily low max (Tie)21.7 C (71.1 F)tie4 years1 of 100 (Routine)
21 June 1986Ex Hacienda San Diego, MXdaily low max (Tie)21.7 C (71.1 F)tie4 years1 of 100 (Routine)
18 June 1986Ex Hacienda San Diego, MXdaily low max21.7 C (71.1 F)2.7 C (4.9 F)4 years13 of 100 (Routine)
17 June 1986Ex Hacienda San Diego, MXdaily low max21.7 C (71.1 F)3.3 C (5.9 F)39 years25 of 100 (Routine)
16 June 1986Ex Hacienda San Diego, MXdaily low max21.7 C (71.1 F)2.2 C (4.0 F)0 years11 of 100 (Routine)
15 June 1986Ex Hacienda San Diego, MXdaily low max22.8 C (73.0 F)1.6 C (2.9 F)0 years9 of 100 (Routine)
14 June 1986Ex Hacienda San Diego, MXdaily low max22.8 C (73.0 F)2.2 C (4.0 F)32 years20 of 100 (Routine)

Climate Trend

29 complete years, 1948 to 1985
Annual mean temperature at Ex Hacienda San Diego as warming stripes, 1948 to 1985 One stripe for each of 29 complete years at Ex Hacienda San Diego, 1948 to 1985. Blue stripes are years cooler than the station's own mean of 19.6 C (67.2 F); red stripes are warmer. The coolest year was 1985, at 17.7 C (63.9 F), and the warmest was 1971, at 21.3 C (70.3 F). The strongest colour marks a difference of 1.9 C (3.4 F). 1948: 20.8 C, +1.3 C from the station mean1949: 20.9 C, +1.3 C from the station mean1950: 20.5 C, +0.9 C from the station mean1952: 19.5 C, -0.1 C from the station mean1953: 19.8 C, +0.2 C from the station mean1954: 19.4 C, -0.1 C from the station mean1955: 19.6 C, 0.0 C from the station mean1956: 18.6 C, -0.9 C from the station mean1957: 18.9 C, -0.6 C from the station mean1958: 18.5 C, -1.0 C from the station mean1959: 19.4 C, -0.2 C from the station mean1960: 19.9 C, +0.3 C from the station mean1961: 19.6 C, 0.0 C from the station mean1962: 19.7 C, +0.2 C from the station mean1963: 19.3 C, -0.3 C from the station mean1964: 20.6 C, +1.1 C from the station mean1965: 19.5 C, 0.0 C from the station mean1966: 18.0 C, -1.6 C from the station mean1967: 18.3 C, -1.2 C from the station mean1969: 21.1 C, +1.6 C from the station mean1971: 21.3 C, +1.7 C from the station mean1972: 20.8 C, +1.2 C from the station mean1973: 19.2 C, -0.4 C from the station mean1974: 18.9 C, -0.7 C from the station mean1976: 20.1 C, +0.6 C from the station mean1977: 20.0 C, +0.4 C from the station mean1982: 19.2 C, -0.3 C from the station mean1983: 18.0 C, -1.5 C from the station mean1985: 17.7 C, -1.8 C from the station mean19481955196019651970197519801985
One stripe for each of 29 complete years at Ex Hacienda San Diego, 1948 to 1985. Blue stripes are years cooler than the station's own mean of 19.6 C (67.2 F); red stripes are warmer. The coolest year was 1985, at 17.7 C (63.9 F), and the warmest was 1971, at 21.3 C (70.3 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Ex Hacienda San Diego as warming stripes, 1948 to 1985
YearAnnual mean temperatureDifference from the station mean
194820.8 C+1.27 C
194920.9 C+1.32 C
195020.5 C+0.95 C
195219.5 C-0.08 C
195319.8 C+0.24 C
195419.4 C-0.14 C
195519.6 C+0.01 C
195618.6 C-0.92 C
195718.9 C-0.63 C
195818.5 C-1.03 C
195919.4 C-0.17 C
196019.9 C+0.33 C
196119.6 C+0.05 C
196219.7 C+0.16 C
196319.3 C-0.30 C
196420.6 C+1.09 C
196519.5 C-0.04 C
196618.0 C-1.57 C
196718.3 C-1.23 C
196921.1 C+1.56 C
197121.3 C+1.71 C
197220.8 C+1.22 C
197319.2 C-0.35 C
197418.9 C-0.66 C
197620.1 C+0.56 C
197720.0 C+0.41 C
198219.2 C-0.32 C
198318.0 C-1.53 C
198517.7 C-1.82 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

1947 to 1986
Yearly extremes at Ex Hacienda San Diego: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.9 C (102.0 F)196434.4 C (93.9 F)40
Coldest night (TNn)0.6 C (33.1 F)19663.9 C (39.0 F)40
Wettest day (Rx1day)118.4 mm (4.7 in)196252.3 mm (2.1 in)40
Wettest five days (Rx5day)192.5 mm (7.6 in)1962115.0 mm (4.5 in)40
Longest dry spell (CDD)174 days1969108 days40

Hottest day (TXx)

Hottest day (TXx) at Ex Hacienda San Diego by year The hottest day of the year at Ex Hacienda San Diego, 1947 to 1986. The record is 38.9 C (102.0 F) in 1964, marked on the chart; the median year is 34.4 C (93.9 F). 3032.53537.5401950196019701980Record: 38.9 C (102.0 F) in 1964
The hottest day of the year at Ex Hacienda San Diego, 1947 to 1986. The record is 38.9 C (102.0 F) in 1964, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Ex Hacienda San Diego by year
YearHottest day (TXx)
194730.6 C (87.1 F)
194833.9 C (93.0 F)
194935.0 C (95.0 F)
195033.9 C (93.0 F)
195136.7 C (98.1 F)
195232.8 C (91.0 F)
195335.0 C (95.0 F)
195435.6 C (96.1 F)
195535.6 C (96.1 F)
195633.9 C (93.0 F)
195735.6 C (96.1 F)
195835.6 C (96.1 F)
195932.2 C (90.0 F)
196035.6 C (96.1 F)
196135.0 C (95.0 F)
196233.9 C (93.0 F)
196331.7 C (89.1 F)
196438.9 C (102.0 F)
196535.0 C (95.0 F)
196634.4 C (93.9 F)
196733.9 C (93.0 F)
196833.9 C (93.0 F)
196935.6 C (96.1 F)
197038.9 C (102.0 F)
197135.6 C (96.1 F)
197235.0 C (95.0 F)
197335.6 C (96.1 F)
197430.6 C (87.1 F)
197534.4 C (93.9 F)
197633.9 C (93.0 F)
197731.7 C (89.1 F)
197835.6 C (96.1 F)
197934.4 C (93.9 F)
198036.7 C (98.1 F)
198135.6 C (96.1 F)
198233.9 C (93.0 F)
198331.7 C (89.1 F)
198432.8 C (91.0 F)
198530.6 C (87.1 F)
198633.9 C (93.0 F)

Coldest night (TNn)

Coldest night (TNn) at Ex Hacienda San Diego by year The coldest night of the year at Ex Hacienda San Diego, 1947 to 1986. The record is 0.6 C (33.1 F) in 1966, marked on the chart; the median year is 3.9 C (39.0 F). 024681950196019701980Record: 0.6 C (33.1 F) in 1966
The coldest night of the year at Ex Hacienda San Diego, 1947 to 1986. The record is 0.6 C (33.1 F) in 1966, marked on the chart; the median year is 3.9 C (39.0 F).
Coldest night (TNn) at Ex Hacienda San Diego by year
YearColdest night (TNn)
19476.7 C (44.1 F)
19484.4 C (39.9 F)
19495.0 C (41.0 F)
19503.9 C (39.0 F)
19511.7 C (35.1 F)
19527.2 C (45.0 F)
19535.0 C (41.0 F)
19544.4 C (39.9 F)
19555.0 C (41.0 F)
19562.8 C (37.0 F)
19573.9 C (39.0 F)
19583.9 C (39.0 F)
19591.7 C (35.1 F)
19601.7 C (35.1 F)
19615.0 C (41.0 F)
19621.7 C (35.1 F)
19635.0 C (41.0 F)
19641.7 C (35.1 F)
19655.6 C (42.1 F)
19660.6 C (33.1 F)
19672.8 C (37.0 F)
19686.7 C (44.1 F)
19693.9 C (39.0 F)
19702.8 C (37.0 F)
19717.8 C (46.0 F)
19725.0 C (41.0 F)
19732.8 C (37.0 F)
19743.9 C (39.0 F)
19752.8 C (37.0 F)
19762.8 C (37.0 F)
19775.0 C (41.0 F)
19785.0 C (41.0 F)
19793.9 C (39.0 F)
19805.0 C (41.0 F)
19816.7 C (44.1 F)
19824.4 C (39.9 F)
19833.9 C (39.0 F)
19845.0 C (41.0 F)
19852.8 C (37.0 F)
19862.8 C (37.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Ex Hacienda San Diego by year The wettest day of the year at Ex Hacienda San Diego, 1947 to 1986. The record is 118.4 mm (4.7 in) in 1962, marked on the chart; the median year is 52.3 mm (2.1 in). 02550751001251950196019701980Record: 118.4 mm (4.7 in) in 1962
The wettest day of the year at Ex Hacienda San Diego, 1947 to 1986. The record is 118.4 mm (4.7 in) in 1962, marked on the chart; the median year is 52.3 mm (2.1 in).
Wettest day (Rx1day) at Ex Hacienda San Diego by year
YearWettest day (Rx1day)
194741.7 mm (1.6 in)
194856.6 mm (2.2 in)
194953.1 mm (2.1 in)
195039.9 mm (1.6 in)
195152.3 mm (2.1 in)
195281.8 mm (3.2 in)
195342.9 mm (1.7 in)
195499.8 mm (3.9 in)
195536.1 mm (1.4 in)
195659.9 mm (2.4 in)
195752.3 mm (2.1 in)
195864.8 mm (2.6 in)
1959108.5 mm (4.3 in)
196042.4 mm (1.7 in)
196141.9 mm (1.6 in)
1962118.4 mm (4.7 in)
196340.1 mm (1.6 in)
196434.8 mm (1.4 in)
196530.5 mm (1.2 in)
196630.5 mm (1.2 in)
196734.8 mm (1.4 in)
196852.6 mm (2.1 in)
196969.9 mm (2.8 in)
197039.9 mm (1.6 in)
197120.3 mm (0.8 in)
197230.0 mm (1.2 in)
197359.9 mm (2.4 in)
197439.9 mm (1.6 in)
197545.0 mm (1.8 in)
197659.9 mm (2.4 in)
197764.8 mm (2.6 in)
197864.8 mm (2.6 in)
197951.8 mm (2.0 in)
198064.8 mm (2.6 in)
198149.8 mm (2.0 in)
198264.8 mm (2.6 in)
198345.0 mm (1.8 in)
198479.8 mm (3.1 in)
198564.8 mm (2.6 in)
198654.9 mm (2.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Ex Hacienda San Diego by year The wettest five days of the year at Ex Hacienda San Diego, 1947 to 1986. The record is 192.5 mm (7.6 in) in 1962, marked on the chart; the median year is 115.0 mm (4.5 in). 501001502001950196019701980Record: 192.5 mm (7.6 in) in 1962
The wettest five days of the year at Ex Hacienda San Diego, 1947 to 1986. The record is 192.5 mm (7.6 in) in 1962, marked on the chart; the median year is 115.0 mm (4.5 in).
Wettest five days (Rx5day) at Ex Hacienda San Diego by year
YearWettest five days (Rx5day)
194772.7 mm (2.9 in)
1948107.7 mm (4.2 in)
194990.5 mm (3.6 in)
195066.1 mm (2.6 in)
1951111.7 mm (4.4 in)
1952117.7 mm (4.6 in)
195364.5 mm (2.5 in)
1954151.6 mm (6.0 in)
195592.5 mm (3.6 in)
1956125.5 mm (4.9 in)
1957104.7 mm (4.1 in)
1958180.9 mm (7.1 in)
1959165.4 mm (6.5 in)
1960134.0 mm (5.3 in)
196179.2 mm (3.1 in)
1962192.5 mm (7.6 in)
1963115.0 mm (4.5 in)
1964104.9 mm (4.1 in)
1965100.6 mm (4.0 in)
1966105.6 mm (4.2 in)
1967132.3 mm (5.2 in)
196880.5 mm (3.2 in)
196969.9 mm (2.8 in)
197059.7 mm (2.4 in)
197160.7 mm (2.4 in)
197270.1 mm (2.8 in)
1973124.8 mm (4.9 in)
1974154.5 mm (6.1 in)
1975134.4 mm (5.3 in)
1976169.4 mm (6.7 in)
1977121.7 mm (4.8 in)
1978164.6 mm (6.5 in)
1979129.6 mm (5.1 in)
1980136.7 mm (5.4 in)
1981117.3 mm (4.6 in)
198283.6 mm (3.3 in)
1983114.9 mm (4.5 in)
198494.5 mm (3.7 in)
1985169.5 mm (6.7 in)
1986156.5 mm (6.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Ex Hacienda San Diego by year The longest dry spell of the year at Ex Hacienda San Diego, 1947 to 1986. The record is 174 days in 1969, marked on the chart; the median year is 108 days. 0501001502001950196019701980Record: 174 days in 1969
The longest dry spell of the year at Ex Hacienda San Diego, 1947 to 1986. The record is 174 days in 1969, marked on the chart; the median year is 108 days.
Longest dry spell (CDD) at Ex Hacienda San Diego by year
YearLongest dry spell (CDD)
194775 days
194882 days
1949154 days
1950102 days
195161 days
1952111 days
1953144 days
1954139 days
1955131 days
1956138 days
1957109 days
195873 days
195997 days
1960161 days
1961124 days
196294 days
196381 days
1964163 days
196551 days
196653 days
1967139 days
196848 days
1969174 days
1970116 days
1971153 days
1972107 days
197399 days
197470 days
1975141 days
197678 days
197787 days
197896 days
197934 days
198038 days
1981109 days
1982109 days
1983125 days
1984130 days
198556 days
1986123 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

32 years, 1948 to 1985

A day with at least 49.8 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 135.5 mm (5.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Ex Hacienda San Diego: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years49.8 mm (2.0 in)
5 years69.7 mm (2.7 in)
10 years84.0 mm (3.3 in)
25 years103.5 mm (4.1 in)
50 years119.0 mm (4.7 in)Longer than the 32 years of record
100 years135.5 mm (5.3 in)Longer than the 32 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, 32 years of values from 1948 to 1985.

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: 118.4 mm (4.7 in) in 1962; 108.5 mm (4.3 in) in 1959; 99.8 mm (3.9 in) in 1954.

Download the Data

  • Data for Ex Hacienda San Diego standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Ex Hacienda San Diego 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).