Built 2026-10-19 (19 October 2026)

El Conejo Weather Records (MXN00011134)

Record envelope, standing records and threshold days for El Conejo (MXN00011134), Mexico, with 37 years of record.

Key Facts for El Conejo

  • El Conejo (MXN00011134) is a weather station in Mexico at 20.70 latitude and -101.37 longitude, 1,740 m (5,708 ft) above sea level.
  • The station reports from 1977 to 2013, 37 years of record.
  • 1,464 records set at El Conejo still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • El Conejo tied a daily record high minimum temperature of 14.4 C (57.9 F) on 28 April 2013.

About the Station

  • Location: Mexico, 20.70 latitude, -101.37 longitude.
  • Elevation: 1,740 m (5,708 ft).
  • Period of record: 1977 to 2013, 37 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 El Conejo, with 2026 drawn through them The band shows the record high and record low for each calendar day at El Conejo. 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 El Conejo. 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 El Conejo, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan28.9 C (84.0 F)-5.0 C (23.0 F)n/an/a
Feb32.8 C (91.0 F)-2.8 C (27.0 F)n/an/a
Mar35.0 C (95.0 F)-1.7 C (28.9 F)n/an/a
Apr37.2 C (99.0 F)1.1 C (34.0 F)n/an/a
May38.9 C (102.0 F)5.6 C (42.1 F)n/an/a
Jun37.2 C (99.0 F)7.8 C (46.0 F)n/an/a
Jul33.9 C (93.0 F)8.9 C (48.0 F)n/an/a
Aug32.2 C (90.0 F)10.0 C (50.0 F)n/an/a
Sep31.7 C (89.1 F)2.8 C (37.0 F)n/an/a
Oct32.2 C (90.0 F)-1.1 C (30.0 F)n/an/a
Nov32.8 C (91.0 F)-3.3 C (26.1 F)n/an/a
Dec29.4 C (84.9 F)-5.0 C (23.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at El Conejo by the year they were set 1,464 records at El Conejo still stand. 1979 holds the most, with 75. 0204060801977: 411978: 461979: 751980: 561981: 581982: 681983: 731984: 471985: 461986: 581987: 531988: 461989: 441990: 291991: 361992: 541993: 231994: 261995: 391996: 251997: 421998: 271999: 412000: 402001: 262002: 202003: 272004: 312005: 272006: 262007: 202008: 212009: 482010: 492011: 382012: 292013: 91977198119851989199319972001200520092013
1,464 records at El Conejo still stand. 1979 holds the most, with 75.
Standing records at El Conejo by the year they were set
Year setStanding records
197741
197846
197975
198056
198158
198268
198373
198447
198546
198658
198753
198846
198944
199029
199136
199254
199323
199426
199539
199625
199742
199827
199941
200040
200126
200220
200327
200431
200527
200626
200720
200821
200948
201049
201138
201229
20139

All-Time Record Progression

1 new records
When El Conejo set new all-time records 1 all-time records were set at El Conejo between 4 February 2010 and 4 February 2010. Each dot is a new record. Record daily precipitation4 February 2010: Record daily precipitation 89.4 mm (3.5 in)2010
1 all-time records were set at El Conejo between 4 February 2010 and 4 February 2010. Each dot is a new record.
When El Conejo set new all-time records
DateKindDetail
2010-02-04Record daily precipitationRecord daily precipitation 89.4 mm (3.5 in)

Wettest Day of Each Month

Feb: 89.4 mm (3.5 in)
Record daily precipitation for each month at El Conejo The wettest day on record for each calendar month at El Conejo. The most was 89.4 mm (3.5 in) on 4 February 2010. 0255075100 Jan: 39.4 mm (1.6 in), 24 January 1980 Jan Feb: 89.4 mm (3.5 in), 4 February 2010 Feb Mar: 18.3 mm (0.7 in), 7 March 1988 Mar Apr: 21.3 mm (0.8 in), 8 April 1985 Apr May: 59.7 mm (2.4 in), 31 May 1992 May Jun: 69.6 mm (2.7 in), 23 June 1993 Jun Jul: 85.3 mm (3.4 in), 7 July 2003 Jul Aug: 87.4 mm (3.4 in), 26 August 1996 Aug Sep: 72.6 mm (2.9 in), 21 September 1993 Sep Oct: 67.6 mm (2.7 in), 4 October 1978 Oct Nov: 29.5 mm (1.2 in), 7 November 1983 Nov Dec: 23.9 mm (0.9 in), 3 December 1979 Dec
The wettest day on record for each calendar month at El Conejo. The most was 89.4 mm (3.5 in) on 4 February 2010.
Record daily precipitation for each month at El Conejo
MonthRecord daily precipitation (mm)Date
Jan39.4 mm (1.6 in)24 January 1980
Feb89.4 mm (3.5 in)4 February 2010
Mar18.3 mm (0.7 in)7 March 1988
Apr21.3 mm (0.8 in)8 April 1985
May59.7 mm (2.4 in)31 May 1992
Jun69.6 mm (2.7 in)23 June 1993
Jul85.3 mm (3.4 in)7 July 2003
Aug87.4 mm (3.4 in)26 August 1996
Sep72.6 mm (2.9 in)21 September 1993
Oct67.6 mm (2.7 in)4 October 1978
Nov29.5 mm (1.2 in)7 November 1983
Dec23.9 mm (0.9 in)3 December 1979

Period of Record Coverage

1977 to 2013
Days with data per year at El Conejo 37 years of record at El Conejo, 1977 to 2013. 2 years have data for under 90 percent of days and are left out of rankings: 1977, 2013. 1977: 162 of 365 days1978: 363 of 365 days1979: 364 of 365 days1980: 364 of 366 days1981: 365 of 365 days1982: 364 of 365 days1983: 365 of 365 days1984: 364 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 364 of 365 days1988: 364 of 366 days1989: 364 of 365 days1990: 334 of 365 days1991: 365 of 365 days1992: 365 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 364 of 365 days1996: 366 of 366 days1997: 364 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 364 of 365 days2003: 365 of 365 days2004: 365 of 366 days2005: 365 of 365 days2006: 341 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 364 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 120 of 365 days1980198519901995200020052010
37 years of record at El Conejo, 1977 to 2013. 2 years have data for under 90 percent of days and are left out of rankings: 1977, 2013.
Days with data per year at El Conejo
YearDays with dataShare of yearComplete
197716244%No
197836399%Yes
1979364100%Yes
198036499%Yes
1981365100%Yes
1982364100%Yes
1983365100%Yes
198436499%Yes
1985365100%Yes
1986365100%Yes
1987364100%Yes
198836499%Yes
1989364100%Yes
199033492%Yes
1991365100%Yes
1992365100%Yes
1993365100%Yes
1994365100%Yes
1995364100%Yes
1996366100%Yes
1997364100%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes
2001365100%Yes
2002364100%Yes
2003365100%Yes
2004365100%Yes
2005365100%Yes
200634193%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010364100%Yes
2011365100%Yes
2012366100%Yes
201312033%No

Latest Records

20
Latest records at El Conejo
DateStationRecordValueBeat old record byOld record stoodSignificance
28 April 2013El Conejo, MXdaily high min (Tie)14.4 C (57.9 F)tie28 years2 of 100 (Routine)
27 April 2013El Conejo, MXdaily high min (Tie)15.0 C (59.0 F)tie28 years2 of 100 (Routine)
26 April 2013El Conejo, MXmonthly high min16.7 C (62.1 F)1.1 C (2.0 F)6 years18 of 100 (Routine)
18 April 2013El Conejo, MXdaily high max (Tie)35.6 C (96.1 F)tie35 years3 of 100 (Routine)
13 April 2013El Conejo, MXdaily low min5.0 C (41.0 F)0.6 C (1.1 F)6 years6 of 100 (Routine)
6 April 2013El Conejo, MXdaily high min (Tie)12.8 C (55.0 F)tie23 years2 of 100 (Routine)
2 April 2013El Conejo, MXdaily high min (Tie)12.2 C (54.0 F)tie31 years3 of 100 (Routine)
27 March 2013El Conejo, MXdaily low min (Tie)5.0 C (41.0 F)tie35 years3 of 100 (Routine)
15 March 2013El Conejo, MXmonthly low max17.2 C (63.0 F)1.1 C (2.0 F)30 years26 of 100 (Routine)
14 March 2013El Conejo, MXdaily low max (Tie)23.9 C (75.0 F)tie20 years2 of 100 (Routine)
9 March 2013El Conejo, MXdaily high min (Tie)10.6 C (51.1 F)tie3 years0 of 100 (Routine)
5 March 2013El Conejo, MXdaily low min0.6 C (33.1 F)0.5 C (0.9 F)22 years11 of 100 (Routine)
4 March 2013El Conejo, MXmonthly low min (Tie)-1.7 C (28.9 F)tie23 years5 of 100 (Routine)
3 March 2013El Conejo, MXdaily low min0.0 C (32.0 F)1.7 C (3.1 F)4 years10 of 100 (Routine)
1 March 2013El Conejo, MXdaily low max20.0 C (68.0 F)2.8 C (5.0 F)26 years21 of 100 (Routine)
28 February 2013El Conejo, MXdaily high max (Tie)31.7 C (89.1 F)tie4 years1 of 100 (Routine)
13 February 2013El Conejo, MXdaily high max (Tie)30.0 C (86.0 F)tie13 years1 of 100 (Routine)
12 February 2013El Conejo, MXdaily high max (Tie)29.4 C (84.9 F)tie27 years2 of 100 (Routine)
8 February 2013El Conejo, MXdaily high max (Tie)30.0 C (86.0 F)tie14 years1 of 100 (Routine)
2 February 2013El Conejo, MXdaily high max (Tie)30.0 C (86.0 F)tie25 years2 of 100 (Routine)

Climate Trend

33 complete years, 1978 to 2012
Annual mean temperature at El Conejo as warming stripes, 1978 to 2012 One stripe for each of 33 complete years at El Conejo, 1978 to 2012. Blue stripes are years cooler than the station's own mean of 18.5 C (65.3 F); red stripes are warmer. The coolest year was 1992, at 17.7 C (63.8 F), and the warmest was 2011, at 19.3 C (66.7 F). The strongest colour marks a difference of 0.9 C (1.6 F). 1978: 18.4 C, -0.1 C from the station mean1979: 18.6 C, +0.1 C from the station mean1980: 18.8 C, +0.3 C from the station mean1981: 18.3 C, -0.2 C from the station mean1982: 19.0 C, +0.5 C from the station mean1983: 18.2 C, -0.3 C from the station mean1984: 18.4 C, -0.1 C from the station mean1985: 18.4 C, -0.1 C from the station mean1986: 18.1 C, -0.4 C from the station mean1987: 18.4 C, -0.1 C from the station mean1988: 18.6 C, +0.1 C from the station mean1989: 18.5 C, 0.0 C from the station mean1991: 18.6 C, 0.0 C from the station mean1992: 17.7 C, -0.9 C from the station mean1993: 18.1 C, -0.4 C from the station mean1994: 18.7 C, +0.2 C from the station mean1995: 18.8 C, +0.2 C from the station mean1996: 18.2 C, -0.4 C from the station mean1997: 18.1 C, -0.4 C from the station mean1998: 18.8 C, +0.3 C from the station mean1999: 18.1 C, -0.4 C from the station mean2000: 18.6 C, +0.1 C from the station mean2001: 18.4 C, -0.1 C from the station mean2002: 18.5 C, 0.0 C from the station mean2003: 18.5 C, 0.0 C from the station mean2004: 18.2 C, -0.3 C from the station mean2005: 18.8 C, +0.3 C from the station mean2007: 18.7 C, +0.1 C from the station mean2008: 18.5 C, 0.0 C from the station mean2009: 19.2 C, +0.7 C from the station mean2010: 18.2 C, -0.3 C from the station mean2011: 19.3 C, +0.7 C from the station mean2012: 19.2 C, +0.7 C from the station mean1978198519901995200020052010
One stripe for each of 33 complete years at El Conejo, 1978 to 2012. Blue stripes are years cooler than the station's own mean of 18.5 C (65.3 F); red stripes are warmer. The coolest year was 1992, at 17.7 C (63.8 F), and the warmest was 2011, at 19.3 C (66.7 F). The strongest colour marks a difference of 0.9 C (1.6 F).
Annual mean temperature at El Conejo as warming stripes, 1978 to 2012
YearAnnual mean temperatureDifference from the station mean
197818.4 C-0.12 C
197918.6 C+0.07 C
198018.8 C+0.33 C
198118.3 C-0.23 C
198219.0 C+0.53 C
198318.2 C-0.28 C
198418.4 C-0.07 C
198518.4 C-0.14 C
198618.1 C-0.40 C
198718.4 C-0.07 C
198818.6 C+0.13 C
198918.5 C+0.03 C
199118.6 C+0.05 C
199217.7 C-0.85 C
199318.1 C-0.41 C
199418.7 C+0.23 C
199518.8 C+0.25 C
199618.2 C-0.36 C
199718.1 C-0.41 C
199818.8 C+0.26 C
199918.1 C-0.40 C
200018.6 C+0.07 C
200118.4 C-0.13 C
200218.5 C+0.03 C
200318.5 C+0.03 C
200418.2 C-0.34 C
200518.8 C+0.27 C
200718.7 C+0.15 C
200818.5 C+0.02 C
200919.2 C+0.67 C
201018.2 C-0.30 C
201119.3 C+0.75 C
201219.2 C+0.66 C

The fitted trend in annual mean temperature here over 1978 to 2012 is 0.09 C (-0.03 to 0.21) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.1 to 0.4) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at El Conejo
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.09 C (-0.03 to 0.21) per decade0.2 F (-0.1 to 0.4) per decade1978 to 201233Not clearly different from zero
Mean daily maximum0.24 C (0.03 to 0.44) per decade0.4 F (0.1 to 0.8) per decade1978 to 201233Rise
Mean daily minimum-0.1 C (-0.2 to 0.1) per decade-0.1 F (-0.3 to 0.1) per decade1978 to 201233Not clearly different from zero

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

1977 to 2013
Yearly extremes at El Conejo: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.9 C (102.0 F)197935.6 C (96.1 F)37
Coldest night (TNn)-5.0 C (23.0 F)1988-1.7 C (28.9 F)37
Wettest day (Rx1day)89.4 mm (3.5 in)201050.3 mm (2.0 in)37
Wettest five days (Rx5day)199.6 mm (7.9 in)200490.6 mm (3.6 in)37
Longest dry spell (CDD)146 days200082 days37

Hottest day (TXx)

Hottest day (TXx) at El Conejo by year The hottest day of the year at El Conejo, 1977 to 2013. The record is 38.9 C (102.0 F) in 1979, marked on the chart; the median year is 35.6 C (96.1 F). 3032343638401980199020002010Record: 38.9 C (102.0 F) in 1979
The hottest day of the year at El Conejo, 1977 to 2013. The record is 38.9 C (102.0 F) in 1979, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at El Conejo by year
YearHottest day (TXx)
197731.1 C (88.0 F)
197836.1 C (97.0 F)
197938.9 C (102.0 F)
198035.6 C (96.1 F)
198135.0 C (95.0 F)
198236.7 C (98.1 F)
198337.8 C (100.0 F)
198435.6 C (96.1 F)
198533.9 C (93.0 F)
198633.9 C (93.0 F)
198735.0 C (95.0 F)
198836.1 C (97.0 F)
198936.7 C (98.1 F)
199035.6 C (96.1 F)
199136.1 C (97.0 F)
199233.3 C (91.9 F)
199335.6 C (96.1 F)
199435.0 C (95.0 F)
199536.7 C (98.1 F)
199635.0 C (95.0 F)
199734.4 C (93.9 F)
199837.8 C (100.0 F)
199935.6 C (96.1 F)
200035.6 C (96.1 F)
200135.0 C (95.0 F)
200236.1 C (97.0 F)
200337.2 C (99.0 F)
200433.3 C (91.9 F)
200537.2 C (99.0 F)
200635.0 C (95.0 F)
200735.0 C (95.0 F)
200836.7 C (98.1 F)
200936.1 C (97.0 F)
201036.7 C (98.1 F)
201137.8 C (100.0 F)
201236.7 C (98.1 F)
201335.6 C (96.1 F)

Coldest night (TNn)

Coldest night (TNn) at El Conejo by year The coldest night of the year at El Conejo, 1977 to 2013. The record is -5.0 C (23.0 F) in 1988, marked on the chart; the median year is -1.7 C (28.9 F). -6-4-2021980199020002010Record: -5.0 C (23.0 F) in 1988
The coldest night of the year at El Conejo, 1977 to 2013. The record is -5.0 C (23.0 F) in 1988, marked on the chart; the median year is -1.7 C (28.9 F).
Coldest night (TNn) at El Conejo by year
YearColdest night (TNn)
1977-1.1 C (30.0 F)
1978-1.1 C (30.0 F)
1979-2.2 C (28.0 F)
1980-1.1 C (30.0 F)
1981-1.7 C (28.9 F)
19820.0 C (32.0 F)
1983-2.2 C (28.0 F)
1984-1.1 C (30.0 F)
1985-3.9 C (25.0 F)
1986-2.8 C (27.0 F)
1987-1.1 C (30.0 F)
1988-5.0 C (23.0 F)
1989-5.0 C (23.0 F)
1990-1.7 C (28.9 F)
1991-1.1 C (30.0 F)
19920.0 C (32.0 F)
1993-0.6 C (30.9 F)
1994-1.7 C (28.9 F)
1995-1.1 C (30.0 F)
1996-2.8 C (27.0 F)
1997-5.0 C (23.0 F)
1998-2.8 C (27.0 F)
1999-3.3 C (26.1 F)
2000-2.2 C (28.0 F)
20010.0 C (32.0 F)
2002-2.8 C (27.0 F)
2003-4.4 C (24.1 F)
2004-1.7 C (28.9 F)
2005-0.6 C (30.9 F)
2006-4.4 C (24.1 F)
2007-0.6 C (30.9 F)
2008-2.8 C (27.0 F)
2009-1.1 C (30.0 F)
2010-4.4 C (24.1 F)
2011-3.3 C (26.1 F)
20120.6 C (33.1 F)
2013-1.7 C (28.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at El Conejo by year The wettest day of the year at El Conejo, 1977 to 2013. The record is 89.4 mm (3.5 in) in 2010, marked on the chart; the median year is 50.3 mm (2.0 in). 02550751001980199020002010Record: 89.4 mm (3.5 in) in 2010
The wettest day of the year at El Conejo, 1977 to 2013. The record is 89.4 mm (3.5 in) in 2010, marked on the chart; the median year is 50.3 mm (2.0 in).
Wettest day (Rx1day) at El Conejo by year
YearWettest day (Rx1day)
197740.4 mm (1.6 in)
197867.6 mm (2.7 in)
197936.8 mm (1.4 in)
198049.8 mm (2.0 in)
198161.2 mm (2.4 in)
198256.9 mm (2.2 in)
198361.5 mm (2.4 in)
198434.8 mm (1.4 in)
198539.4 mm (1.6 in)
198659.4 mm (2.3 in)
198754.4 mm (2.1 in)
198846.5 mm (1.8 in)
198935.3 mm (1.4 in)
199045.5 mm (1.8 in)
199173.7 mm (2.9 in)
199259.7 mm (2.4 in)
199372.6 mm (2.9 in)
199432.3 mm (1.3 in)
199549.3 mm (1.9 in)
199687.4 mm (3.4 in)
199758.4 mm (2.3 in)
199862.7 mm (2.5 in)
199965.8 mm (2.6 in)
200038.4 mm (1.5 in)
200150.3 mm (2.0 in)
200241.7 mm (1.6 in)
200385.3 mm (3.4 in)
200467.8 mm (2.7 in)
200535.3 mm (1.4 in)
200650.3 mm (2.0 in)
200755.6 mm (2.2 in)
200844.5 mm (1.8 in)
200943.2 mm (1.7 in)
201089.4 mm (3.5 in)
201157.2 mm (2.3 in)
201248.8 mm (1.9 in)
20133.6 mm (0.14 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at El Conejo by year The wettest five days of the year at El Conejo, 1977 to 2013. The record is 199.6 mm (7.9 in) in 2004, marked on the chart; the median year is 90.6 mm (3.6 in). 0501001502001980199020002010Record: 199.6 mm (7.9 in) in 2004
The wettest five days of the year at El Conejo, 1977 to 2013. The record is 199.6 mm (7.9 in) in 2004, marked on the chart; the median year is 90.6 mm (3.6 in).
Wettest five days (Rx5day) at El Conejo by year
YearWettest five days (Rx5day)
197792.8 mm (3.7 in)
1978140.1 mm (5.5 in)
197970.5 mm (2.8 in)
1980138.4 mm (5.4 in)
198182.3 mm (3.2 in)
198273.9 mm (2.9 in)
1983111.0 mm (4.4 in)
198465.9 mm (2.6 in)
198565.7 mm (2.6 in)
198687.6 mm (3.4 in)
198792.8 mm (3.7 in)
1988119.9 mm (4.7 in)
198967.6 mm (2.7 in)
199083.6 mm (3.3 in)
1991136.6 mm (5.4 in)
199274.0 mm (2.9 in)
199387.0 mm (3.4 in)
199463.3 mm (2.5 in)
199596.5 mm (3.8 in)
1996161.1 mm (6.3 in)
199790.6 mm (3.6 in)
1998110.2 mm (4.3 in)
199974.4 mm (2.9 in)
200080.1 mm (3.2 in)
200190.0 mm (3.5 in)
2002100.7 mm (4.0 in)
2003192.9 mm (7.6 in)
2004199.6 mm (7.9 in)
200562.7 mm (2.5 in)
2006120.6 mm (4.7 in)
2007117.4 mm (4.6 in)
2008133.4 mm (5.3 in)
2009126.6 mm (5.0 in)
2010162.8 mm (6.4 in)
201181.6 mm (3.2 in)
201284.7 mm (3.3 in)
20139.2 mm (0.36 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at El Conejo by year The longest dry spell of the year at El Conejo, 1977 to 2013. The record is 146 days in 2000, marked on the chart; the median year is 82 days. 0501001501980199020002010Record: 146 days in 2000
The longest dry spell of the year at El Conejo, 1977 to 2013. The record is 146 days in 2000, marked on the chart; the median year is 82 days.
Longest dry spell (CDD) at El Conejo by year
YearLongest dry spell (CDD)
197724 days
197848 days
197985 days
198035 days
198144 days
198248 days
198373 days
198470 days
198579 days
198670 days
198791 days
1988101 days
198999 days
199068 days
199189 days
199232 days
199377 days
1994106 days
199584 days
1996113 days
199766 days
1998112 days
1999136 days
2000146 days
200150 days
200256 days
2003115 days
200446 days
200579 days
200686 days
200754 days
2008145 days
200994 days
201095 days
2011105 days
201282 days
2013112 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

22 years with a frost

Across 22 years with a frost, the median last spring frost at El Conejo falls on 25 January and the median first autumn frost on 24 November, which leaves a median of 298 days between them.

Frost dates and growing season at El Conejo
MeasureMedian, all yearsEarliest periodRecent period (1979 to 2011)Recent against earliestFitted trend
Last spring frost25 Januaryn/a25 Januaryn/an/a
First autumn frost24 Novembern/a24 Novembern/an/a
Growing days298 daysn/a298 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

35 years, 1978 to 2012

A day with at least 52.9 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 99.7 mm (3.9 in) of rain is expected about once in 100 years.

Rainfall return levels at El Conejo: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years52.9 mm (2.1 in)
5 years66.8 mm (2.6 in)
10 years75.5 mm (3.0 in)
25 years85.7 mm (3.4 in)
50 years92.9 mm (3.7 in)Longer than the 35 years of record
100 years99.7 mm (3.9 in)Longer than the 35 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, 35 years of values from 1978 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: 89.4 mm (3.5 in) in 2010; 87.4 mm (3.4 in) in 1996; 85.3 mm (3.4 in) in 2003.

Download the Data

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