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San Fernando Weather Records (MXN00028086)

Record envelope, standing records and threshold days for San Fernando (MXN00028086), Mexico, with 81 years of record.

Key Facts for San Fernando

  • San Fernando (MXN00028086) is a weather station in Mexico at 24.83 latitude and -98.15 longitude, 46 m (150 ft) above sea level.
  • The station reports from 1931 to 2011, 81 years of record.
  • 1,464 records set at San Fernando still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • San Fernando set a daily record precipitation of 48.0 mm (1.9 in) on 10 December 2011.

About the Station

  • Location: Mexico, 24.83 latitude, -98.15 longitude.
  • Elevation: 46 m (150 ft).
  • Period of record: 1931 to 2011, 81 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at San Fernando, with 2026 drawn through them The band shows the record high and record low for each calendar day at San Fernando. 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 San Fernando. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at San Fernando, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan35.6 C (96.1 F)-7.8 C (18.0 F)n/an/a
Feb38.9 C (102.0 F)-10.0 C (14.0 F)n/an/a
Mar41.1 C (106.0 F)-2.2 C (28.0 F)n/an/a
Apr43.3 C (109.9 F)1.7 C (35.1 F)n/an/a
May43.9 C (111.0 F)10.0 C (50.0 F)n/an/a
Jun43.9 C (111.0 F)13.3 C (55.9 F)n/an/a
Jul41.7 C (107.1 F)17.2 C (63.0 F)n/an/a
Aug41.7 C (107.1 F)17.2 C (63.0 F)n/an/a
Sep45.0 C (113.0 F)10.6 C (51.1 F)n/an/a
Oct41.7 C (107.1 F)1.1 C (34.0 F)n/an/a
Nov42.2 C (108.0 F)-2.8 C (27.0 F)n/an/a
Dec36.1 C (97.0 F)-8.9 C (16.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at San Fernando by the year they were set 1,464 records at San Fernando still stand. 1933 holds the most, with 65. 0204060801931: 21932: 291933: 651934: 211935: 221936: 191937: 201938: 111939: 201940: 301943: 141944: 281947: 161948: 271949: 251950: 321951: 161952: 111953: 221954: 181955: 281956: 91957: 261958: 111959: 291960: 241961: 181962: 131963: 211964: 281965: 141966: 201967: 141968: 161969: 121970: 241971: 121972: 111973: 201974: 271975: 191976: 181977: 71978: 131979: 121980: 231981: 171982: 381983: 381984: 191985: 191986: 101987: 131988: 101989: 271990: 221991: 341992: 131993: 101994: 251995: 281996: 261997: 191998: 301999: 112000: 112001: 152002: 82003: 122004: 82005: 132006: 142007: 92008: 162009: 152010: 42011: 131931193919511959196719751983199119992007
1,464 records at San Fernando still stand. 1933 holds the most, with 65.
Standing records at San Fernando by the year they were set
Year setStanding records
19312
193229
193365
193421
193522
193619
193720
193811
193920
194030
194314
194428
194716
194827
194925
195032
195116
195211
195322
195418
195528
19569
195726
195811
195929
196024
196118
196213
196321
196428
196514
196620
196714
196816
196912
197024
197112
197211
197320
197427
197519
197618
19777
197813
197912
198023
198117
198238
198338
198419
198519
198610
198713
198810
198927
199022
199134
199213
199310
199425
199528
199626
199719
199830
199911
200011
200115
20028
200312
20048
200513
200614
20079
200816
200915
20104
201113

All-Time Record Progression

1 new records
When San Fernando set new all-time records 1 all-time records were set at San Fernando between 24 December 1983 and 24 December 1983. Each dot is a new record. Record low maximum temperature24 December 1983: Record low maximum temperature 0.0 C (32.0 F)
1 all-time records were set at San Fernando between 24 December 1983 and 24 December 1983. Each dot is a new record.
When San Fernando set new all-time records
DateKindDetail
1983-12-24Record low maximum temperatureRecord low maximum temperature 0.0 C (32.0 F)

Wettest Day of Each Month

Aug: 231.4 mm (9.1 in)
Record daily precipitation for each month at San Fernando The wettest day on record for each calendar month at San Fernando. The most was 231.4 mm (9.1 in) on 4 August 1933. 0100200300 Jan: 63.8 mm (2.5 in), 15 January 2011 Jan Feb: 70.9 mm (2.8 in), 16 February 1957 Feb Mar: 115.3 mm (4.5 in), 29 March 2004 Mar Apr: 87.4 mm (3.4 in), 27 April 1982 Apr May: 163.6 mm (6.4 in), 5 May 1963 May Jun: 174.8 mm (6.9 in), 19 June 1957 Jun Jul: 112.8 mm (4.4 in), 6 July 1933 Jul Aug: 231.4 mm (9.1 in), 4 August 1933 Aug Sep: 158.8 mm (6.3 in), 22 September 1978 Sep Oct: 144.3 mm (5.7 in), 3 October 1950 Oct Nov: 108.0 mm (4.3 in), 3 November 1952 Nov Dec: 78.0 mm (3.1 in), 2 December 1989 Dec
The wettest day on record for each calendar month at San Fernando. The most was 231.4 mm (9.1 in) on 4 August 1933.
Record daily precipitation for each month at San Fernando
MonthRecord daily precipitation (mm)Date
Jan63.8 mm (2.5 in)15 January 2011
Feb70.9 mm (2.8 in)16 February 1957
Mar115.3 mm (4.5 in)29 March 2004
Apr87.4 mm (3.4 in)27 April 1982
May163.6 mm (6.4 in)5 May 1963
Jun174.8 mm (6.9 in)19 June 1957
Jul112.8 mm (4.4 in)6 July 1933
Aug231.4 mm (9.1 in)4 August 1933
Sep158.8 mm (6.3 in)22 September 1978
Oct144.3 mm (5.7 in)3 October 1950
Nov108.0 mm (4.3 in)3 November 1952
Dec78.0 mm (3.1 in)2 December 1989

Period of Record Coverage

1931 to 2011
Days with data per year at San Fernando 77 years of record at San Fernando, 1931 to 2011. 7 years have data for under 90 percent of days and are left out of rankings: 1931, 1960, 2006, 2007, 2008, 2009, 2011. 1931: 29 of 365 days1932: 365 of 366 days1933: 364 of 365 days1934: 363 of 365 days1935: 343 of 365 days1936: 356 of 366 days1937: 344 of 365 days1938: 338 of 365 days1939: 355 of 365 days1940: 363 of 366 days1943: 352 of 365 days1944: 361 of 366 days1947: 358 of 365 days1948: 357 of 366 days1949: 332 of 365 days1950: 357 of 365 days1951: 359 of 365 days1952: 333 of 366 days1953: 361 of 365 days1954: 362 of 365 days1955: 357 of 365 days1956: 332 of 366 days1957: 360 of 365 days1958: 358 of 365 days1959: 358 of 365 days1960: 299 of 366 days1961: 357 of 365 days1962: 358 of 365 days1963: 361 of 365 days1964: 361 of 366 days1965: 330 of 365 days1966: 358 of 365 days1967: 357 of 365 days1968: 362 of 366 days1969: 356 of 365 days1970: 360 of 365 days1971: 360 of 365 days1972: 358 of 366 days1973: 362 of 365 days1974: 359 of 365 days1975: 359 of 365 days1976: 356 of 366 days1977: 361 of 365 days1978: 358 of 365 days1979: 359 of 365 days1980: 358 of 366 days1981: 362 of 365 days1982: 363 of 365 days1983: 364 of 365 days1984: 364 of 366 days1985: 359 of 365 days1986: 356 of 365 days1987: 362 of 365 days1988: 366 of 366 days1989: 364 of 365 days1990: 364 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 364 of 365 days1994: 364 of 365 days1995: 365 of 365 days1996: 364 of 366 days1997: 356 of 365 days1998: 365 of 365 days1999: 363 of 365 days2000: 363 of 366 days2001: 339 of 365 days2002: 330 of 365 days2003: 343 of 365 days2004: 362 of 366 days2005: 343 of 365 days2006: 314 of 365 days2007: 307 of 365 days2008: 312 of 366 days2009: 252 of 365 days2010: 329 of 365 days2011: 326 of 365 days19401950196019701980199020002010
77 years of record at San Fernando, 1931 to 2011. 7 years have data for under 90 percent of days and are left out of rankings: 1931, 1960, 2006, 2007, 2008, 2009, 2011.
Days with data per year at San Fernando
YearDays with dataShare of yearComplete
1931298%No
1932365100%Yes
1933364100%Yes
193436399%Yes
193534394%Yes
193635697%Yes
193734494%Yes
193833893%Yes
193935597%Yes
194036399%Yes
194335296%Yes
194436199%Yes
194735898%Yes
194835798%Yes
194933291%Yes
195035798%Yes
195135998%Yes
195233391%Yes
195336199%Yes
195436299%Yes
195535798%Yes
195633291%Yes
195736099%Yes
195835898%Yes
195935898%Yes
196029982%No
196135798%Yes
196235898%Yes
196336199%Yes
196436199%Yes
196533090%Yes
196635898%Yes
196735798%Yes
196836299%Yes
196935698%Yes
197036099%Yes
197136099%Yes
197235898%Yes
197336299%Yes
197435998%Yes
197535998%Yes
197635697%Yes
197736199%Yes
197835898%Yes
197935998%Yes
198035898%Yes
198136299%Yes
198236399%Yes
1983364100%Yes
198436499%Yes
198535998%Yes
198635698%Yes
198736299%Yes
1988366100%Yes
1989364100%Yes
1990364100%Yes
1991365100%Yes
1992366100%Yes
1993364100%Yes
1994364100%Yes
1995365100%Yes
199636499%Yes
199735698%Yes
1998365100%Yes
199936399%Yes
200036399%Yes
200133993%Yes
200233090%Yes
200334394%Yes
200436299%Yes
200534394%Yes
200631486%No
200730784%No
200831285%No
200925269%No
201032990%Yes
201132689%No

Latest Records

20
Latest records at San Fernando
DateStationRecordValueBeat old record byOld record stoodSignificance
10 December 2011San Fernando, MXdaily rain48.0 mm (1.9 in)38.1 mm (1.5 in)57 years64 of 100 (Major)
22 November 2011San Fernando, MXdaily high min (Tie)21.7 C (71.1 F)tie6 years2 of 100 (Routine)
20 November 2011San Fernando, MXdaily high min (Tie)20.6 C (69.1 F)tie16 years3 of 100 (Routine)
25 September 2011San Fernando, MXdaily high max (Tie)40.0 C (104.0 F)tie5 years2 of 100 (Routine)
22 September 2011San Fernando, MXdaily high max (Tie)38.3 C (100.9 F)tie46 years5 of 100 (Routine)
4 September 2011San Fernando, MXdaily high max40.6 C (105.1 F)0.6 C (1.1 F)10 years12 of 100 (Routine)
2 September 2011San Fernando, MXdaily high max (Tie)38.9 C (102.0 F)tie53 years6 of 100 (Routine)
28 August 2011San Fernando, MXdaily high min (Tie)25.0 C (77.0 F)tie54 years6 of 100 (Routine)
12 August 2011San Fernando, MXdaily high min26.7 C (80.1 F)1.1 C (2.0 F)74 years37 of 100 (Notable)
11 August 2011San Fernando, MXdaily high min26.1 C (79.0 F)0.5 C (0.9 F)60 years29 of 100 (Routine)
10 August 2011San Fernando, MXdaily high min26.1 C (79.0 F)1.1 C (2.0 F)62 years33 of 100 (Routine)
9 August 2011San Fernando, MXdaily high min (Tie)25.0 C (77.0 F)tie60 years6 of 100 (Routine)
8 August 2011San Fernando, MXdaily high min (Tie)25.0 C (77.0 F)tie72 years7 of 100 (Routine)
24 July 2011San Fernando, MXdaily high min (Tie)26.1 C (79.0 F)tie14 years3 of 100 (Routine)
23 July 2011San Fernando, MXdaily high min25.6 C (78.1 F)0.6 C (1.1 F)30 years20 of 100 (Routine)
1 July 2011San Fernando, MXdaily low max (Tie)27.8 C (82.0 F)tie48 years5 of 100 (Routine)
30 June 2011San Fernando, MXdaily low max25.6 C (78.1 F)2.2 C (4.0 F)20 years22 of 100 (Routine)
21 April 2011San Fernando, MXdaily high min (Tie)24.4 C (75.9 F)tie16 years3 of 100 (Routine)
20 April 2011San Fernando, MXdaily high min24.4 C (75.9 F)0.5 C (0.9 F)48 years23 of 100 (Routine)
4 April 2011San Fernando, MXdaily high max (Tie)40.0 C (104.0 F)tie56 years6 of 100 (Routine)

Climate Trend

60 complete years, 1932 to 2005
Annual mean temperature at San Fernando as warming stripes, 1932 to 2005 One stripe for each of 60 complete years at San Fernando, 1932 to 2005. Blue stripes are years cooler than the station's own mean of 23.3 C (73.9 F); red stripes are warmer. The coolest year was 1983, at 21.3 C (70.4 F), and the warmest was 1950, at 25.2 C (77.3 F). The strongest colour marks a difference of 2.0 C (3.6 F). 1932: 23.4 C, +0.1 C from the station mean1933: 24.2 C, +1.0 C from the station mean1934: 24.3 C, +1.0 C from the station mean1936: 22.4 C, -0.8 C from the station mean1937: 23.1 C, -0.2 C from the station mean1939: 23.3 C, +0.1 C from the station mean1940: 23.0 C, -0.3 C from the station mean1943: 23.4 C, +0.1 C from the station mean1944: 23.0 C, -0.3 C from the station mean1947: 22.9 C, -0.3 C from the station mean1948: 23.6 C, +0.3 C from the station mean1950: 25.2 C, +1.9 C from the station mean1951: 23.8 C, +0.5 C from the station mean1953: 24.3 C, +1.0 C from the station mean1954: 24.1 C, +0.8 C from the station mean1955: 23.5 C, +0.2 C from the station mean1957: 24.5 C, +1.2 C from the station mean1958: 23.2 C, -0.1 C from the station mean1959: 23.0 C, -0.3 C from the station mean1961: 23.4 C, +0.2 C from the station mean1962: 24.1 C, +0.8 C from the station mean1963: 23.4 C, +0.1 C from the station mean1964: 23.9 C, +0.7 C from the station mean1966: 22.5 C, -0.7 C from the station mean1967: 23.1 C, -0.2 C from the station mean1968: 22.3 C, -0.9 C from the station mean1969: 23.2 C, -0.1 C from the station mean1970: 22.3 C, -1.0 C from the station mean1971: 23.3 C, +0.1 C from the station mean1972: 23.2 C, -0.1 C from the station mean1973: 22.4 C, -0.9 C from the station mean1974: 23.1 C, -0.1 C from the station mean1975: 23.2 C, -0.1 C from the station mean1976: 21.7 C, -1.6 C from the station mean1977: 22.9 C, -0.4 C from the station mean1978: 22.7 C, -0.6 C from the station mean1979: 22.4 C, -0.8 C from the station mean1980: 23.0 C, -0.2 C from the station mean1981: 22.4 C, -0.9 C from the station mean1982: 22.0 C, -1.2 C from the station mean1983: 21.3 C, -2.0 C from the station mean1984: 22.1 C, -1.2 C from the station mean1985: 22.2 C, -1.0 C from the station mean1986: 23.0 C, -0.3 C from the station mean1987: 22.2 C, -1.1 C from the station mean1988: 22.6 C, -0.6 C from the station mean1989: 23.3 C, 0.0 C from the station mean1990: 24.3 C, +1.0 C from the station mean1991: 23.9 C, +0.6 C from the station mean1992: 23.2 C, -0.1 C from the station mean1993: 23.3 C, 0.0 C from the station mean1994: 24.3 C, +1.0 C from the station mean1995: 24.0 C, +0.7 C from the station mean1996: 23.9 C, +0.6 C from the station mean1997: 23.1 C, -0.1 C from the station mean1998: 24.7 C, +1.5 C from the station mean1999: 24.1 C, +0.8 C from the station mean2000: 23.9 C, +0.6 C from the station mean2004: 23.6 C, +0.3 C from the station mean2005: 24.2 C, +0.9 C from the station mean19321940195019601970198019902000
One stripe for each of 60 complete years at San Fernando, 1932 to 2005. Blue stripes are years cooler than the station's own mean of 23.3 C (73.9 F); red stripes are warmer. The coolest year was 1983, at 21.3 C (70.4 F), and the warmest was 1950, at 25.2 C (77.3 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at San Fernando as warming stripes, 1932 to 2005
YearAnnual mean temperatureDifference from the station mean
193223.4 C+0.15 C
193324.2 C+0.98 C
193424.3 C+1.04 C
193622.4 C-0.82 C
193723.1 C-0.19 C
193923.3 C+0.08 C
194023.0 C-0.31 C
194323.4 C+0.13 C
194423.0 C-0.26 C
194722.9 C-0.32 C
194823.6 C+0.29 C
195025.2 C+1.93 C
195123.8 C+0.54 C
195324.3 C+1.05 C
195424.1 C+0.79 C
195523.5 C+0.24 C
195724.5 C+1.21 C
195823.2 C-0.11 C
195923.0 C-0.30 C
196123.4 C+0.18 C
196224.1 C+0.80 C
196323.4 C+0.15 C
196423.9 C+0.67 C
196622.5 C-0.74 C
196723.1 C-0.19 C
196822.3 C-0.92 C
196923.2 C-0.07 C
197022.3 C-1.01 C
197123.3 C+0.06 C
197223.2 C-0.07 C
197322.4 C-0.86 C
197423.1 C-0.13 C
197523.2 C-0.09 C
197621.7 C-1.55 C
197722.9 C-0.36 C
197822.7 C-0.59 C
197922.4 C-0.82 C
198023.0 C-0.22 C
198122.4 C-0.86 C
198222.0 C-1.24 C
198321.3 C-1.95 C
198422.1 C-1.19 C
198522.2 C-1.03 C
198623.0 C-0.29 C
198722.2 C-1.06 C
198822.6 C-0.63 C
198923.3 C+0.01 C
199024.3 C+1.02 C
199123.9 C+0.63 C
199223.2 C-0.06 C
199323.3 C+0.02 C
199424.3 C+0.99 C
199524.0 C+0.73 C
199623.9 C+0.63 C
199723.1 C-0.13 C
199824.7 C+1.48 C
199924.1 C+0.79 C
200023.9 C+0.61 C
200423.6 C+0.33 C
200524.2 C+0.93 C

The fitted trend in annual mean temperature here over 1932 to 2005 is -0.03 C (-0.13 to 0.07) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.05 F (-0.23 to 0.13) per decade. The slope is a straight line fitted to 60 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at San Fernando
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.03 C (-0.13 to 0.07) per decade-0.05 F (-0.23 to 0.13) per decade1932 to 200560Not clearly different from zero
Mean daily maximum-0.07 C (-0.18 to 0.04) per decade-0.1 F (-0.3 to 0.1) per decade1932 to 200560Not clearly different from zero
Mean daily minimum0.02 C (-0.11 to 0.14) per decade0.03 F (-0.20 to 0.26) per decade1932 to 200560Not 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

1931 to 2011
Yearly extremes at San Fernando: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.0 C (113.0 F)196140.0 C (104.0 F)77
Coldest night (TNn)-10.0 C (14.0 F)1951-1.1 C (30.0 F)77
Wettest day (Rx1day)231.4 mm (9.1 in)193380.3 mm (3.2 in)77
Wettest five days (Rx5day)297.0 mm (11.7 in)1967144.3 mm (5.7 in)77
Longest dry spell (CDD)99 days201147 days77

Hottest day (TXx)

Hottest day (TXx) at San Fernando by year The hottest day of the year at San Fernando, 1931 to 2011. The record is 45.0 C (113.0 F) in 1961, marked on the chart; the median year is 40.0 C (104.0 F). 3638404244461940196019802000Record: 45.0 C (113.0 F) in 1961
The hottest day of the year at San Fernando, 1931 to 2011. The record is 45.0 C (113.0 F) in 1961, marked on the chart; the median year is 40.0 C (104.0 F).
Hottest day (TXx) at San Fernando by year
YearHottest day (TXx)
193137.2 C (99.0 F)
193240.6 C (105.1 F)
193342.2 C (108.0 F)
193438.9 C (102.0 F)
193539.4 C (102.9 F)
193640.6 C (105.1 F)
193740.0 C (104.0 F)
193837.8 C (100.0 F)
193941.1 C (106.0 F)
194038.9 C (102.0 F)
194341.1 C (106.0 F)
194440.0 C (104.0 F)
194738.9 C (102.0 F)
194840.6 C (105.1 F)
194940.6 C (105.1 F)
195040.0 C (104.0 F)
195139.4 C (102.9 F)
195238.9 C (102.0 F)
195343.3 C (109.9 F)
195441.1 C (106.0 F)
195540.0 C (104.0 F)
195640.0 C (104.0 F)
195741.1 C (106.0 F)
195840.0 C (104.0 F)
195941.1 C (106.0 F)
196041.7 C (107.1 F)
196145.0 C (113.0 F)
196240.6 C (105.1 F)
196340.6 C (105.1 F)
196441.1 C (106.0 F)
196540.0 C (104.0 F)
196640.0 C (104.0 F)
196741.1 C (106.0 F)
196838.9 C (102.0 F)
196940.0 C (104.0 F)
197039.4 C (102.9 F)
197140.0 C (104.0 F)
197239.4 C (102.9 F)
197341.7 C (107.1 F)
197442.8 C (109.0 F)
197541.1 C (106.0 F)
197638.9 C (102.0 F)
197740.0 C (104.0 F)
197840.6 C (105.1 F)
197940.0 C (104.0 F)
198040.0 C (104.0 F)
198138.9 C (102.0 F)
198238.9 C (102.0 F)
198338.9 C (102.0 F)
198440.6 C (105.1 F)
198538.9 C (102.0 F)
198640.0 C (104.0 F)
198738.9 C (102.0 F)
198840.0 C (104.0 F)
198940.6 C (105.1 F)
199039.4 C (102.9 F)
199141.7 C (107.1 F)
199238.9 C (102.0 F)
199338.3 C (100.9 F)
199439.4 C (102.9 F)
199541.1 C (106.0 F)
199641.1 C (106.0 F)
199741.7 C (107.1 F)
199843.9 C (111.0 F)
199943.9 C (111.0 F)
200041.1 C (106.0 F)
200141.7 C (107.1 F)
200240.6 C (105.1 F)
200340.6 C (105.1 F)
200440.0 C (104.0 F)
200541.1 C (106.0 F)
200640.0 C (104.0 F)
200739.4 C (102.9 F)
200841.1 C (106.0 F)
200941.1 C (106.0 F)
201039.4 C (102.9 F)
201140.6 C (105.1 F)

Coldest night (TNn)

Coldest night (TNn) at San Fernando by year The coldest night of the year at San Fernando, 1931 to 2011. The record is -10.0 C (14.0 F) in 1951, marked on the chart; the median year is -1.1 C (30.0 F). -10-505101940196019802000Record: -10.0 C (14.0 F) in 1951
The coldest night of the year at San Fernando, 1931 to 2011. The record is -10.0 C (14.0 F) in 1951, marked on the chart; the median year is -1.1 C (30.0 F).
Coldest night (TNn) at San Fernando by year
YearColdest night (TNn)
19318.9 C (48.0 F)
1932-2.2 C (28.0 F)
19330.0 C (32.0 F)
1934-1.1 C (30.0 F)
19350.0 C (32.0 F)
19360.0 C (32.0 F)
19371.7 C (35.1 F)
1938-2.2 C (28.0 F)
19391.7 C (35.1 F)
1940-5.0 C (23.0 F)
19430.6 C (33.1 F)
1944-3.9 C (25.0 F)
19470.0 C (32.0 F)
19480.0 C (32.0 F)
1949-0.6 C (30.9 F)
1950-5.0 C (23.0 F)
1951-10.0 C (14.0 F)
19520.0 C (32.0 F)
1953-3.3 C (26.1 F)
19540.6 C (33.1 F)
1955-1.7 C (28.9 F)
1956-4.4 C (24.1 F)
1957-3.9 C (25.0 F)
1958-1.1 C (30.0 F)
19590.0 C (32.0 F)
1960-1.1 C (30.0 F)
19610.0 C (32.0 F)
1962-7.8 C (18.0 F)
1963-3.3 C (26.1 F)
1964-2.8 C (27.0 F)
1965-0.6 C (30.9 F)
1966-2.2 C (28.0 F)
1967-1.1 C (30.0 F)
1968-1.1 C (30.0 F)
19691.1 C (34.0 F)
1970-1.7 C (28.9 F)
19710.0 C (32.0 F)
19720.0 C (32.0 F)
1973-4.4 C (24.1 F)
1974-2.8 C (27.0 F)
1975-5.0 C (23.0 F)
1976-4.4 C (24.1 F)
1977-2.2 C (28.0 F)
1978-2.2 C (28.0 F)
1979-4.4 C (24.1 F)
19800.0 C (32.0 F)
19810.0 C (32.0 F)
1982-5.6 C (21.9 F)
1983-7.8 C (18.0 F)
1984-5.0 C (23.0 F)
1985-5.0 C (23.0 F)
1986-0.6 C (30.9 F)
1987-2.8 C (27.0 F)
19880.0 C (32.0 F)
1989-8.9 C (16.0 F)
1990-1.1 C (30.0 F)
19912.2 C (36.0 F)
19920.0 C (32.0 F)
19930.0 C (32.0 F)
19943.3 C (37.9 F)
19952.8 C (37.0 F)
1996-2.2 C (28.0 F)
1997-1.7 C (28.9 F)
19981.1 C (34.0 F)
19990.0 C (32.0 F)
20002.8 C (37.0 F)
20011.7 C (35.1 F)
20023.3 C (37.9 F)
20030.0 C (32.0 F)
2004-1.7 C (28.9 F)
20050.6 C (33.1 F)
20061.7 C (35.1 F)
20072.8 C (37.0 F)
20081.1 C (34.0 F)
20090.0 C (32.0 F)
2010-2.2 C (28.0 F)
2011-2.8 C (27.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at San Fernando by year The wettest day of the year at San Fernando, 1931 to 2011. The record is 231.4 mm (9.1 in) in 1933, marked on the chart; the median year is 80.3 mm (3.2 in). 01002003001940196019802000Record: 231.4 mm (9.1 in) in 1933
The wettest day of the year at San Fernando, 1931 to 2011. The record is 231.4 mm (9.1 in) in 1933, marked on the chart; the median year is 80.3 mm (3.2 in).
Wettest day (Rx1day) at San Fernando by year
YearWettest day (Rx1day)
19311.3 mm (0.05 in)
193264.8 mm (2.6 in)
1933231.4 mm (9.1 in)
193471.4 mm (2.8 in)
193581.8 mm (3.2 in)
193657.9 mm (2.3 in)
193738.9 mm (1.5 in)
1938225.8 mm (8.9 in)
193956.9 mm (2.2 in)
194075.9 mm (3.0 in)
194385.9 mm (3.4 in)
194474.9 mm (2.9 in)
1947136.9 mm (5.4 in)
194873.9 mm (2.9 in)
194940.4 mm (1.6 in)
1950144.3 mm (5.7 in)
1951115.8 mm (4.6 in)
1952108.0 mm (4.3 in)
195369.9 mm (2.8 in)
1954111.0 mm (4.4 in)
195562.5 mm (2.5 in)
195670.9 mm (2.8 in)
1957174.8 mm (6.9 in)
195879.8 mm (3.1 in)
195969.9 mm (2.8 in)
196045.0 mm (1.8 in)
1961116.8 mm (4.6 in)
196253.8 mm (2.1 in)
1963163.6 mm (6.4 in)
196442.9 mm (1.7 in)
196559.9 mm (2.4 in)
196679.8 mm (3.1 in)
1967126.5 mm (5.0 in)
196839.9 mm (1.6 in)
196993.5 mm (3.7 in)
197088.9 mm (3.5 in)
1971154.9 mm (6.1 in)
197268.3 mm (2.7 in)
197393.5 mm (3.7 in)
197435.3 mm (1.4 in)
1975118.9 mm (4.7 in)
197699.8 mm (3.9 in)
1977104.9 mm (4.1 in)
1978158.8 mm (6.3 in)
197971.9 mm (2.8 in)
198064.8 mm (2.6 in)
198184.8 mm (3.3 in)
198287.4 mm (3.4 in)
198365.3 mm (2.6 in)
198479.2 mm (3.1 in)
198599.8 mm (3.9 in)
1986105.9 mm (4.2 in)
198787.4 mm (3.4 in)
1988137.4 mm (5.4 in)
198978.0 mm (3.1 in)
199060.5 mm (2.4 in)
199184.8 mm (3.3 in)
199270.4 mm (2.8 in)
199353.3 mm (2.1 in)
199482.8 mm (3.3 in)
199570.9 mm (2.8 in)
199667.3 mm (2.6 in)
199770.9 mm (2.8 in)
1998144.3 mm (5.7 in)
1999101.3 mm (4.0 in)
200052.8 mm (2.1 in)
200142.9 mm (1.7 in)
2002103.9 mm (4.1 in)
2003105.4 mm (4.1 in)
2004115.3 mm (4.5 in)
2005119.4 mm (4.7 in)
200670.9 mm (2.8 in)
2007101.6 mm (4.0 in)
200888.9 mm (3.5 in)
200980.3 mm (3.2 in)
201087.9 mm (3.5 in)
201163.8 mm (2.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at San Fernando by year The wettest five days of the year at San Fernando, 1931 to 2011. The record is 297.0 mm (11.7 in) in 1967, marked on the chart; the median year is 144.3 mm (5.7 in). 01002003001940196019802000Record: 297.0 mm (11.7 in) in 1967
The wettest five days of the year at San Fernando, 1931 to 2011. The record is 297.0 mm (11.7 in) in 1967, marked on the chart; the median year is 144.3 mm (5.7 in).
Wettest five days (Rx5day) at San Fernando by year
YearWettest five days (Rx5day)
19311.3 mm (0.05 in)
1932136.7 mm (5.4 in)
1933237.5 mm (9.4 in)
1934111.3 mm (4.4 in)
1935157.8 mm (6.2 in)
193692.3 mm (3.6 in)
193784.2 mm (3.3 in)
1938225.8 mm (8.9 in)
1939124.2 mm (4.9 in)
194075.9 mm (3.0 in)
1943163.3 mm (6.4 in)
1944171.5 mm (6.8 in)
1947185.1 mm (7.3 in)
194886.7 mm (3.4 in)
194976.9 mm (3.0 in)
1950181.6 mm (7.1 in)
1951148.6 mm (5.9 in)
1952115.2 mm (4.5 in)
195393.6 mm (3.7 in)
1954164.7 mm (6.5 in)
1955128.1 mm (5.0 in)
1956123.6 mm (4.9 in)
1957180.9 mm (7.1 in)
1958113.2 mm (4.5 in)
1959175.6 mm (6.9 in)
196083.6 mm (3.3 in)
1961227.6 mm (9.0 in)
196279.5 mm (3.1 in)
1963175.3 mm (6.9 in)
196449.4 mm (1.9 in)
196587.9 mm (3.5 in)
1966118.5 mm (4.7 in)
1967297.0 mm (11.7 in)
196866.6 mm (2.6 in)
1969123.7 mm (4.9 in)
1970194.6 mm (7.7 in)
1971224.3 mm (8.8 in)
1972190.2 mm (7.5 in)
1973252.0 mm (9.9 in)
197490.9 mm (3.6 in)
1975207.3 mm (8.2 in)
1976251.7 mm (9.9 in)
1977160.8 mm (6.3 in)
1978233.8 mm (9.2 in)
1979185.4 mm (7.3 in)
1980129.8 mm (5.1 in)
1981111.0 mm (4.4 in)
1982161.8 mm (6.4 in)
198394.0 mm (3.7 in)
1984167.9 mm (6.6 in)
198599.8 mm (3.9 in)
1986145.5 mm (5.7 in)
1987147.3 mm (5.8 in)
1988180.6 mm (7.1 in)
1989103.1 mm (4.1 in)
199090.7 mm (3.6 in)
1991205.0 mm (8.1 in)
1992116.4 mm (4.6 in)
199375.0 mm (3.0 in)
1994100.4 mm (4.0 in)
1995172.8 mm (6.8 in)
1996153.4 mm (6.0 in)
1997146.9 mm (5.8 in)
1998144.3 mm (5.7 in)
1999162.4 mm (6.4 in)
200074.5 mm (2.9 in)
200152.8 mm (2.1 in)
2002211.1 mm (8.3 in)
2003176.8 mm (7.0 in)
2004147.1 mm (5.8 in)
2005122.2 mm (4.8 in)
2006127.0 mm (5.0 in)
2007110.7 mm (4.4 in)
2008227.4 mm (9.0 in)
2009100.1 mm (3.9 in)
2010186.0 mm (7.3 in)
2011105.9 mm (4.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at San Fernando by year The longest dry spell of the year at San Fernando, 1931 to 2011. The record is 99 days in 2011, marked on the chart; the median year is 47 days. 02550751001940196019802000Record: 99 days in 2011
The longest dry spell of the year at San Fernando, 1931 to 2011. The record is 99 days in 2011, marked on the chart; the median year is 47 days.
Longest dry spell (CDD) at San Fernando by year
YearLongest dry spell (CDD)
193116 days
193249 days
193351 days
193429 days
193544 days
193633 days
193741 days
193861 days
193945 days
194045 days
194342 days
194468 days
194745 days
194848 days
194923 days
195076 days
195143 days
195243 days
195365 days
195474 days
195549 days
195651 days
195755 days
195850 days
195945 days
196041 days
196154 days
196263 days
196337 days
196453 days
196547 days
196643 days
196738 days
196834 days
196942 days
197045 days
197190 days
197230 days
197337 days
197447 days
197584 days
197643 days
197740 days
197840 days
197938 days
198055 days
198152 days
198249 days
198352 days
198457 days
198529 days
198660 days
198729 days
198861 days
198979 days
199035 days
199140 days
199233 days
199349 days
199449 days
199555 days
199648 days
199760 days
199878 days
199960 days
200051 days
200147 days
200261 days
200358 days
200428 days
200547 days
200643 days
200732 days
200854 days
200966 days
201035 days
201199 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

27 years with a frost

Across 27 years with a frost, the median last spring frost at San Fernando falls on 14 February and the median first autumn frost on 10 December, which leaves a median of 304 days between them.

Fitted over all years, the growing season changes by +2.8 days per decade at this station.

Frost dates and growing season at San Fernando
MeasureMedian, all yearsEarliest periodRecent period (1932 to 2004)Recent against earliestFitted trend
Last spring frost14 Februaryn/a14 Februaryn/a-1.1 days per decade
First autumn frost10 Decembern/a10 Decembern/a+1.8 days per decade
Growing days304 daysn/a304 daysn/a+2.8 days per decade

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

71 years, 1932 to 2011

A day with at least 82.5 mm (3.2 in) of rain is expected about once in 2 years. A day with at least 234.1 mm (9.2 in) of rain is expected about once in 100 years.

Rainfall return levels at San Fernando: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years82.5 mm (3.2 in)
5 years116.2 mm (4.6 in)
10 years141.0 mm (5.6 in)
25 years175.6 mm (6.9 in)
50 years203.8 mm (8.0 in)
100 years234.1 mm (9.2 in)Longer than the 71 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, 71 years of values from 1932 to 2011.

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: 231.4 mm (9.1 in) in 1933; 225.8 mm (8.9 in) in 1938; 174.8 mm (6.9 in) in 1957.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

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