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Hacienda San Juan Weather Records (MXN00011026)

Record envelope, standing records and threshold days for Hacienda San Juan (MXN00011026), Mexico, with 39 years of record.

Key Facts for Hacienda San Juan

  • Hacienda San Juan (MXN00011026) is a weather station in Mexico at 21.47 latitude and -100.92 longitude, 2,120 m (6,955 ft) above sea level.
  • The station reports from 1961 to 1999, 39 years of record.
  • 1,464 records set at Hacienda San Juan still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Hacienda San Juan tied a daily record low maximum temperature of 17.8 C (64.0 F) on 20 April 1999.

About the Station

  • Location: Mexico, 21.47 latitude, -100.92 longitude.
  • Elevation: 2,120 m (6,955 ft).
  • Period of record: 1961 to 1999, 39 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 Hacienda San Juan, with 2026 drawn through them The band shows the record high and record low for each calendar day at Hacienda San Juan. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -10010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Hacienda San Juan. 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 Hacienda San Juan, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan28.9 C (84.0 F)-5.6 C (21.9 F)n/an/a
Feb30.0 C (86.0 F)-8.3 C (17.1 F)n/an/a
Mar32.2 C (90.0 F)-5.6 C (21.9 F)n/an/a
Apr36.7 C (98.1 F)0.0 C (32.0 F)n/an/a
May35.6 C (96.1 F)0.6 C (33.1 F)n/an/a
Jun35.6 C (96.1 F)0.6 C (33.1 F)n/an/a
Jul32.8 C (91.0 F)2.2 C (36.0 F)n/an/a
Aug30.0 C (86.0 F)5.0 C (41.0 F)n/an/a
Sep30.0 C (86.0 F)0.6 C (33.1 F)n/an/a
Oct30.0 C (86.0 F)-3.3 C (26.1 F)n/an/a
Nov28.9 C (84.0 F)-6.1 C (21.0 F)n/an/a
Dec27.2 C (81.0 F)-10.0 C (14.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Hacienda San Juan by the year they were set 1,464 records at Hacienda San Juan still stand. 1962 holds the most, with 99. 02550751001961: 571962: 991963: 251964: 461965: 251966: 451967: 381968: 481969: 381970: 351971: 351972: 301973: 201974: 861975: 201976: 741977: 141978: 431979: 501980: 271981: 391982: 291983: 321984: 641985: 381986: 521987: 661988: 101989: 331990: 161991: 221992: 211993: 221994: 301995: 321996: 241997: 371998: 321999: 101961196519691973197719811985198919931997
1,464 records at Hacienda San Juan still stand. 1962 holds the most, with 99.
Standing records at Hacienda San Juan by the year they were set
Year setStanding records
196157
196299
196325
196446
196525
196645
196738
196848
196938
197035
197135
197230
197320
197486
197520
197674
197714
197843
197950
198027
198139
198229
198332
198464
198538
198652
198766
198810
198933
199016
199122
199221
199322
199430
199532
199624
199737
199832
199910

All-Time Record Progression

1 new records
When Hacienda San Juan set new all-time records 1 all-time records were set at Hacienda San Juan between 14 December 1997 and 14 December 1997. Each dot is a new record. Record low minimum temperature14 December 1997: Record low minimum temperature -10.0 C (14.0 F)
1 all-time records were set at Hacienda San Juan between 14 December 1997 and 14 December 1997. Each dot is a new record.
When Hacienda San Juan set new all-time records
DateKindDetail
1997-12-14Record low minimum temperatureRecord low minimum temperature -10.0 C (14.0 F)

Wettest Day of Each Month

Aug: 80.8 mm (3.2 in)
Record daily precipitation for each month at Hacienda San Juan The wettest day on record for each calendar month at Hacienda San Juan. The most was 80.8 mm (3.2 in) on 10 August 1985. 0255075100 Jan: 31.2 mm (1.2 in), 29 January 1992 Jan Feb: 18.3 mm (0.7 in), 21 February 1965 Feb Mar: 30.0 mm (1.2 in), 3 March 1968 Mar Apr: 37.3 mm (1.5 in), 21 April 1994 Apr May: 51.1 mm (2.0 in), 16 May 1965 May Jun: 69.9 mm (2.8 in), 3 June 1985 Jun Jul: 67.3 mm (2.6 in), 26 July 1989 Jul Aug: 80.8 mm (3.2 in), 10 August 1985 Aug Sep: 51.8 mm (2.0 in), 11 September 1968 Sep Oct: 52.3 mm (2.1 in), 14 October 1966 Oct Nov: 18.3 mm (0.7 in), 17 November 1976 Nov Dec: 39.9 mm (1.6 in), 3 December 1979 Dec
The wettest day on record for each calendar month at Hacienda San Juan. The most was 80.8 mm (3.2 in) on 10 August 1985.
Record daily precipitation for each month at Hacienda San Juan
MonthRecord daily precipitation (mm)Date
Jan31.2 mm (1.2 in)29 January 1992
Feb18.3 mm (0.7 in)21 February 1965
Mar30.0 mm (1.2 in)3 March 1968
Apr37.3 mm (1.5 in)21 April 1994
May51.1 mm (2.0 in)16 May 1965
Jun69.9 mm (2.8 in)3 June 1985
Jul67.3 mm (2.6 in)26 July 1989
Aug80.8 mm (3.2 in)10 August 1985
Sep51.8 mm (2.0 in)11 September 1968
Oct52.3 mm (2.1 in)14 October 1966
Nov18.3 mm (0.7 in)17 November 1976
Dec39.9 mm (1.6 in)3 December 1979

Period of Record Coverage

1961 to 1999
Days with data per year at Hacienda San Juan 39 years of record at Hacienda San Juan, 1961 to 1999. 9 years have data for under 90 percent of days and are left out of rankings: 1969, 1973, 1976, 1977, 1978, 1979, 1987, 1988 and others. 1961: 331 of 365 days1962: 364 of 365 days1963: 365 of 365 days1964: 365 of 366 days1965: 363 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 364 of 366 days1969: 328 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 334 of 366 days1973: 301 of 365 days1974: 364 of 365 days1975: 333 of 365 days1976: 303 of 366 days1977: 181 of 365 days1978: 299 of 365 days1979: 303 of 365 days1980: 365 of 366 days1981: 362 of 365 days1982: 364 of 365 days1983: 364 of 365 days1984: 361 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 322 of 365 days1988: 107 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 364 of 366 days1993: 364 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 119 of 365 days1965197019751980198519901995
39 years of record at Hacienda San Juan, 1961 to 1999. 9 years have data for under 90 percent of days and are left out of rankings: 1969, 1973, 1976, 1977, 1978, 1979, 1987, 1988 and others.
Days with data per year at Hacienda San Juan
YearDays with dataShare of yearComplete
196133191%Yes
1962364100%Yes
1963365100%Yes
1964365100%Yes
196536399%Yes
1966365100%Yes
1967365100%Yes
196836499%Yes
196932890%No
1970365100%Yes
1971365100%Yes
197233491%Yes
197330182%No
1974364100%Yes
197533391%Yes
197630383%No
197718150%No
197829982%No
197930383%No
1980365100%Yes
198136299%Yes
1982364100%Yes
1983364100%Yes
198436199%Yes
1985365100%Yes
1986365100%Yes
198732288%No
198810729%No
1989365100%Yes
1990365100%Yes
1991365100%Yes
199236499%Yes
1993364100%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998365100%Yes
199911933%No

Latest Records

20
Latest records at Hacienda San Juan
DateStationRecordValueBeat old record byOld record stoodSignificance
20 April 1999Hacienda San Juan, MXdaily low max (Tie)17.8 C (64.0 F)tie24 years2 of 100 (Routine)
19 April 1999Hacienda San Juan, MXdaily low min2.2 C (36.0 F)0.6 C (1.1 F)36 years16 of 100 (Routine)
29 March 1999Hacienda San Juan, MXdaily low max (Tie)15.0 C (59.0 F)tie30 years3 of 100 (Routine)
26 March 1999Hacienda San Juan, MXdaily rain17.3 mm (0.7 in)16.3 mm (0.6 in)28 years20 of 100 (Routine)
26 March 1999Hacienda San Juan, MXdaily low max (Tie)11.7 C (53.1 F)tie12 years1 of 100 (Routine)
25 March 1999Hacienda San Juan, MXdaily high min11.7 C (53.1 F)0.6 C (1.1 F)34 years14 of 100 (Routine)
22 March 1999Hacienda San Juan, MXdaily rain13.2 mm (0.5 in)0.8 mm (0.03 in)32 years13 of 100 (Routine)
16 March 1999Hacienda San Juan, MXdaily low min0.6 C (33.1 F)2.2 C (4.0 F)12 years12 of 100 (Routine)
15 February 1999Hacienda San Juan, MXdaily low min-3.3 C (26.1 F)1.6 C (2.9 F)36 years18 of 100 (Routine)
14 February 1999Hacienda San Juan, MXdaily low min-5.0 C (23.0 F)3.9 C (7.0 F)36 years25 of 100 (Routine)
12 February 1999Hacienda San Juan, MXdaily low max (Tie)10.0 C (50.0 F)tie17 years2 of 100 (Routine)
26 January 1999Hacienda San Juan, MXdaily low min-2.2 C (28.0 F)2.2 C (4.0 F)17 years16 of 100 (Routine)
25 January 1999Hacienda San Juan, MXdaily low min-4.4 C (24.1 F)3.3 C (5.9 F)16 years19 of 100 (Routine)
24 January 1999Hacienda San Juan, MXdaily low min-2.2 C (28.0 F)2.2 C (4.0 F)33 years21 of 100 (Routine)
5 January 1999Hacienda San Juan, MXmonthly low min (Tie)-5.6 C (21.9 F)tie14 years4 of 100 (Routine)
4 January 1999Hacienda San Juan, MXdaily low min-4.4 C (24.1 F)2.2 C (4.0 F)0 years11 of 100 (Routine)
3 January 1999Hacienda San Juan, MXdaily low min (Tie)-3.9 C (25.0 F)tie12 years1 of 100 (Routine)
20 December 1998Hacienda San Juan, MXdaily high max25.0 C (77.0 F)1.1 C (2.0 F)5 years6 of 100 (Routine)
18 December 1998Hacienda San Juan, MXdaily low min-5.0 C (23.0 F)1.7 C (3.1 F)16 years12 of 100 (Routine)
17 December 1998Hacienda San Juan, MXdaily low min-5.0 C (23.0 F)2.8 C (5.0 F)25 years19 of 100 (Routine)

Climate Trend

27 complete years, 1962 to 1998
Annual mean temperature at Hacienda San Juan as warming stripes, 1962 to 1998 One stripe for each of 27 complete years at Hacienda San Juan, 1962 to 1998. Blue stripes are years cooler than the station's own mean of 14.6 C (58.3 F); red stripes are warmer. The coolest year was 1974, at 12.3 C (54.2 F), and the warmest was 1962, at 16.4 C (61.6 F). The strongest colour marks a difference of 2.4 C (4.3 F). 1962: 16.4 C, +1.8 C from the station mean1963: 15.7 C, +1.0 C from the station mean1964: 15.9 C, +1.3 C from the station mean1965: 14.6 C, 0.0 C from the station mean1966: 13.6 C, -1.0 C from the station mean1967: 14.5 C, -0.1 C from the station mean1968: 13.1 C, -1.5 C from the station mean1970: 14.8 C, +0.1 C from the station mean1971: 14.8 C, +0.1 C from the station mean1974: 12.3 C, -2.3 C from the station mean1980: 13.7 C, -0.9 C from the station mean1981: 13.0 C, -1.7 C from the station mean1982: 13.8 C, -0.9 C from the station mean1983: 13.7 C, -1.0 C from the station mean1984: 13.0 C, -1.6 C from the station mean1985: 13.1 C, -1.6 C from the station mean1986: 12.7 C, -2.0 C from the station mean1989: 15.6 C, +1.0 C from the station mean1990: 15.2 C, +0.6 C from the station mean1991: 15.9 C, +1.3 C from the station mean1992: 14.7 C, 0.0 C from the station mean1993: 15.8 C, +1.2 C from the station mean1994: 16.2 C, +1.6 C from the station mean1995: 16.4 C, +1.8 C from the station mean1996: 15.6 C, +0.9 C from the station mean1997: 15.5 C, +0.8 C from the station mean1998: 15.8 C, +1.2 C from the station mean19621965197019751980198519901995
One stripe for each of 27 complete years at Hacienda San Juan, 1962 to 1998. Blue stripes are years cooler than the station's own mean of 14.6 C (58.3 F); red stripes are warmer. The coolest year was 1974, at 12.3 C (54.2 F), and the warmest was 1962, at 16.4 C (61.6 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Hacienda San Juan as warming stripes, 1962 to 1998
YearAnnual mean temperatureDifference from the station mean
196216.4 C+1.79 C
196315.7 C+1.04 C
196415.9 C+1.29 C
196514.6 C-0.01 C
196613.6 C-1.04 C
196714.5 C-0.15 C
196813.1 C-1.53 C
197014.8 C+0.13 C
197114.8 C+0.11 C
197412.3 C-2.31 C
198013.7 C-0.94 C
198113.0 C-1.67 C
198213.8 C-0.89 C
198313.7 C-0.99 C
198413.0 C-1.63 C
198513.1 C-1.57 C
198612.7 C-1.98 C
198915.6 C+0.98 C
199015.2 C+0.57 C
199115.9 C+1.27 C
199214.7 C+0.04 C
199315.8 C+1.17 C
199416.2 C+1.56 C
199516.4 C+1.77 C
199615.6 C+0.92 C
199715.5 C+0.84 C
199815.8 C+1.16 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

1961 to 1999
Yearly extremes at Hacienda San Juan: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)36.7 C (98.1 F)196132.8 C (91.0 F)39
Coldest night (TNn)-10.0 C (14.0 F)1997-3.3 C (26.1 F)39
Wettest day (Rx1day)80.8 mm (3.2 in)198542.9 mm (1.7 in)39
Wettest five days (Rx5day)180.6 mm (7.1 in)197674.7 mm (2.9 in)39
Longest dry spell (CDD)140 days199559 days39

Hottest day (TXx)

Hottest day (TXx) at Hacienda San Juan by year The hottest day of the year at Hacienda San Juan, 1961 to 1999. The record is 36.7 C (98.1 F) in 1961, marked on the chart; the median year is 32.8 C (91.0 F). 27.53032.53537.5197019801990Record: 36.7 C (98.1 F) in 1961
The hottest day of the year at Hacienda San Juan, 1961 to 1999. The record is 36.7 C (98.1 F) in 1961, marked on the chart; the median year is 32.8 C (91.0 F).
Hottest day (TXx) at Hacienda San Juan by year
YearHottest day (TXx)
196136.7 C (98.1 F)
196235.6 C (96.1 F)
196333.3 C (91.9 F)
196434.4 C (93.9 F)
196532.2 C (90.0 F)
196632.2 C (90.0 F)
196734.4 C (93.9 F)
196831.7 C (89.1 F)
196934.4 C (93.9 F)
197035.0 C (95.0 F)
197132.2 C (90.0 F)
197235.0 C (95.0 F)
197333.9 C (93.0 F)
197429.4 C (84.9 F)
197530.0 C (86.0 F)
197629.4 C (84.9 F)
197730.0 C (86.0 F)
197832.8 C (91.0 F)
197935.0 C (95.0 F)
198032.2 C (90.0 F)
198130.6 C (87.1 F)
198231.1 C (88.0 F)
198333.9 C (93.0 F)
198430.6 C (87.1 F)
198532.8 C (91.0 F)
198630.0 C (86.0 F)
198731.1 C (88.0 F)
198827.8 C (82.0 F)
198932.8 C (91.0 F)
199033.3 C (91.9 F)
199134.4 C (93.9 F)
199230.0 C (86.0 F)
199332.8 C (91.0 F)
199432.2 C (90.0 F)
199533.9 C (93.0 F)
199633.3 C (91.9 F)
199732.2 C (90.0 F)
199835.0 C (95.0 F)
199932.2 C (90.0 F)

Coldest night (TNn)

Coldest night (TNn) at Hacienda San Juan by year The coldest night of the year at Hacienda San Juan, 1961 to 1999. The record is -10.0 C (14.0 F) in 1997, marked on the chart; the median year is -3.3 C (26.1 F). -10-7.5-5-2.50197019801990Record: -10.0 C (14.0 F) in 1997
The coldest night of the year at Hacienda San Juan, 1961 to 1999. The record is -10.0 C (14.0 F) in 1997, marked on the chart; the median year is -3.3 C (26.1 F).
Coldest night (TNn) at Hacienda San Juan by year
YearColdest night (TNn)
1961-1.1 C (30.0 F)
1962-1.1 C (30.0 F)
1963-5.0 C (23.0 F)
1964-2.2 C (28.0 F)
1965-4.4 C (24.1 F)
19660.0 C (32.0 F)
19670.0 C (32.0 F)
1968-1.1 C (30.0 F)
19690.0 C (32.0 F)
19700.0 C (32.0 F)
1971-3.3 C (26.1 F)
1972-3.3 C (26.1 F)
19730.0 C (32.0 F)
1974-5.0 C (23.0 F)
1975-5.0 C (23.0 F)
1976-8.3 C (17.1 F)
19770.0 C (32.0 F)
19780.0 C (32.0 F)
19790.0 C (32.0 F)
19800.0 C (32.0 F)
1981-5.0 C (23.0 F)
1982-3.3 C (26.1 F)
1983-4.4 C (24.1 F)
1984-5.6 C (21.9 F)
1985-5.0 C (23.0 F)
1986-4.4 C (24.1 F)
1987-5.6 C (21.9 F)
19880.0 C (32.0 F)
1989-7.8 C (18.0 F)
1990-5.0 C (23.0 F)
1991-2.8 C (27.0 F)
1992-2.2 C (28.0 F)
1993-2.8 C (27.0 F)
1994-3.3 C (26.1 F)
1995-1.7 C (28.9 F)
1996-6.1 C (21.0 F)
1997-10.0 C (14.0 F)
1998-5.0 C (23.0 F)
1999-5.6 C (21.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Hacienda San Juan by year The wettest day of the year at Hacienda San Juan, 1961 to 1999. The record is 80.8 mm (3.2 in) in 1985, marked on the chart; the median year is 42.9 mm (1.7 in). 020406080100197019801990Record: 80.8 mm (3.2 in) in 1985
The wettest day of the year at Hacienda San Juan, 1961 to 1999. The record is 80.8 mm (3.2 in) in 1985, marked on the chart; the median year is 42.9 mm (1.7 in).
Wettest day (Rx1day) at Hacienda San Juan by year
YearWettest day (Rx1day)
196150.8 mm (2.0 in)
196224.9 mm (1.0 in)
196354.9 mm (2.2 in)
196445.0 mm (1.8 in)
196551.1 mm (2.0 in)
196655.4 mm (2.2 in)
196726.4 mm (1.0 in)
196851.8 mm (2.0 in)
196922.9 mm (0.9 in)
197047.2 mm (1.9 in)
197174.2 mm (2.9 in)
197231.8 mm (1.3 in)
197351.3 mm (2.0 in)
197448.8 mm (1.9 in)
197544.5 mm (1.8 in)
197642.9 mm (1.7 in)
19778.1 mm (0.32 in)
197829.0 mm (1.1 in)
197939.9 mm (1.6 in)
198057.9 mm (2.3 in)
198151.8 mm (2.0 in)
198236.8 mm (1.4 in)
198334.8 mm (1.4 in)
198455.4 mm (2.2 in)
198580.8 mm (3.2 in)
198650.0 mm (2.0 in)
198733.5 mm (1.3 in)
198821.8 mm (0.9 in)
198967.3 mm (2.6 in)
199044.5 mm (1.8 in)
199157.9 mm (2.3 in)
199236.3 mm (1.4 in)
199326.4 mm (1.0 in)
199437.3 mm (1.5 in)
199531.5 mm (1.2 in)
199633.8 mm (1.3 in)
199739.4 mm (1.6 in)
199833.3 mm (1.3 in)
199917.3 mm (0.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Hacienda San Juan by year The wettest five days of the year at Hacienda San Juan, 1961 to 1999. The record is 180.6 mm (7.1 in) in 1976, marked on the chart; the median year is 74.7 mm (2.9 in). 050100150200197019801990Record: 180.6 mm (7.1 in) in 1976
The wettest five days of the year at Hacienda San Juan, 1961 to 1999. The record is 180.6 mm (7.1 in) in 1976, marked on the chart; the median year is 74.7 mm (2.9 in).
Wettest five days (Rx5day) at Hacienda San Juan by year
YearWettest five days (Rx5day)
196178.7 mm (3.1 in)
196244.2 mm (1.7 in)
1963117.6 mm (4.6 in)
196484.9 mm (3.3 in)
196582.3 mm (3.2 in)
196696.2 mm (3.8 in)
196756.3 mm (2.2 in)
196885.7 mm (3.4 in)
196947.0 mm (1.9 in)
197085.8 mm (3.4 in)
1971140.0 mm (5.5 in)
197267.7 mm (2.7 in)
1973115.6 mm (4.6 in)
197456.2 mm (2.2 in)
197581.8 mm (3.2 in)
1976180.6 mm (7.1 in)
197715.7 mm (0.6 in)
197840.4 mm (1.6 in)
197970.3 mm (2.8 in)
198060.7 mm (2.4 in)
198170.4 mm (2.8 in)
198283.0 mm (3.3 in)
198352.1 mm (2.1 in)
198484.4 mm (3.3 in)
1985143.8 mm (5.7 in)
198696.7 mm (3.8 in)
198762.4 mm (2.5 in)
198836.9 mm (1.5 in)
1989115.1 mm (4.5 in)
199071.7 mm (2.8 in)
199190.4 mm (3.6 in)
199274.7 mm (2.9 in)
199355.7 mm (2.2 in)
199454.1 mm (2.1 in)
199573.1 mm (2.9 in)
199686.9 mm (3.4 in)
199769.9 mm (2.8 in)
199878.8 mm (3.1 in)
199930.5 mm (1.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Hacienda San Juan by year The longest dry spell of the year at Hacienda San Juan, 1961 to 1999. The record is 140 days in 1995, marked on the chart; the median year is 59 days. 050100150197019801990Record: 140 days in 1995
The longest dry spell of the year at Hacienda San Juan, 1961 to 1999. The record is 140 days in 1995, marked on the chart; the median year is 59 days.
Longest dry spell (CDD) at Hacienda San Juan by year
YearLongest dry spell (CDD)
196145 days
196270 days
196390 days
196445 days
196536 days
196633 days
196745 days
196844 days
196951 days
197057 days
197184 days
197241 days
197338 days
197434 days
197575 days
197659 days
197760 days
197875 days
197951 days
198034 days
198134 days
198263 days
198373 days
198459 days
198545 days
198653 days
198799 days
198870 days
198999 days
199040 days
1991126 days
199245 days
199382 days
199483 days
1995140 days
1996128 days
199751 days
1998101 days
199980 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

24 years with a frost

Across 24 years with a frost, the median last spring frost at Hacienda San Juan falls on 4 March and the median first autumn frost on 13 November, which leaves a median of 265 days between them.

Frost dates and growing season at Hacienda San Juan
MeasureMedian, all yearsEarliest periodRecent period (1962 to 1998)Recent against earliestFitted trend
Last spring frost4 Marchn/a4 Marchn/an/a
First autumn frost13 Novembern/a13 Novembern/an/a
Growing days265 daysn/a265 daysn/an/a

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

32 years, 1961 to 1998

A day with at least 43.5 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 84.4 mm (3.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Hacienda San Juan: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years43.5 mm (1.7 in)
5 years56.4 mm (2.2 in)
10 years64.1 mm (2.5 in)
25 years72.9 mm (2.9 in)
50 years78.9 mm (3.1 in)Longer than the 32 years of record
100 years84.4 mm (3.3 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 1961 to 1998.

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: 80.8 mm (3.2 in) in 1985; 74.2 mm (2.9 in) in 1971; 67.3 mm (2.6 in) in 1989.

Download the Data

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