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San Antonio Tejas Weather Records (MXN00012140)

Record envelope, standing records and threshold days for San Antonio Tejas (MXN00012140), Mexico, with 52 years of record.

Key Facts for San Antonio Tejas

  • San Antonio Tejas (MXN00012140) is a weather station in Mexico at 17.72 latitude and -100.87 longitude, 1,900 m (6,233 ft) above sea level.
  • The station reports from 1961 to 2012, 52 years of record.
  • 1,464 records set at San Antonio Tejas still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • San Antonio Tejas set a daily record precipitation of 24.9 mm (1.0 in) on 3 November 2012.

About the Station

  • Location: Mexico, 17.72 latitude, -100.87 longitude.
  • Elevation: 1,900 m (6,233 ft).
  • Period of record: 1961 to 2012, 52 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 Antonio Tejas, with 2026 drawn through them The band shows the record high and record low for each calendar day at San Antonio Tejas. 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 San Antonio Tejas. 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 Antonio Tejas, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan37.8 C (100.0 F)0.6 C (33.1 F)n/an/a
Feb36.7 C (98.1 F)1.7 C (35.1 F)n/an/a
Mar38.9 C (102.0 F)1.7 C (35.1 F)n/an/a
Apr34.4 C (93.9 F)3.9 C (39.0 F)n/an/a
May35.0 C (95.0 F)6.7 C (44.1 F)n/an/a
Jun32.8 C (91.0 F)6.7 C (44.1 F)n/an/a
Jul35.6 C (96.1 F)6.7 C (44.1 F)n/an/a
Aug33.9 C (93.0 F)7.8 C (46.0 F)n/an/a
Sep35.0 C (95.0 F)7.2 C (45.0 F)n/an/a
Oct35.0 C (95.0 F)5.6 C (42.1 F)n/an/a
Nov37.8 C (100.0 F)5.6 C (42.1 F)n/an/a
Dec36.7 C (98.1 F)2.8 C (37.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at San Antonio Tejas by the year they were set 1,464 records at San Antonio Tejas still stand. 1997 holds the most, with 164. 0501001502001961: 31962: 211963: 771964: 571965: 331966: 201967: 1181968: 151969: 451972: 531973: 201974: 211975: 151976: 201977: 191978: 281979: 321980: 391981: 201982: 341985: 201986: 361987: 311988: 71989: 21992: 211993: 11994: 11995: 11997: 1641998: 1501999: 372001: 92002: 42003: 12004: 212005: 92006: 142007: 22008: 32009: 732010: 1422011: 102012: 15196119661973197819851992199820042009
1,464 records at San Antonio Tejas still stand. 1997 holds the most, with 164.
Standing records at San Antonio Tejas by the year they were set
Year setStanding records
19613
196221
196377
196457
196533
196620
1967118
196815
196945
197253
197320
197421
197515
197620
197719
197828
197932
198039
198120
198234
198520
198636
198731
19887
19892
199221
19931
19941
19951
1997164
1998150
199937
20019
20024
20031
200421
20059
200614
20072
20083
200973
2010142
201110
201215

Wettest Day of Each Month

Oct: 319.8 mm (12.6 in)
Record daily precipitation for each month at San Antonio Tejas The wettest day on record for each calendar month at San Antonio Tejas. The most was 319.8 mm (12.6 in) on 7 October 1976. 0100200300400 Jan: 91.9 mm (3.6 in), 23 January 1980 Jan Feb: 59.9 mm (2.4 in), 3 February 1975 Feb Mar: 42.9 mm (1.7 in), 17 March 1966 Mar Apr: 74.9 mm (2.9 in), 2 April 1966 Apr May: 109.0 mm (4.3 in), 30 May 1978 May Jun: 255.8 mm (10.1 in), 22 June 1973 Jun Jul: 228.3 mm (9.0 in), 6 July 1993 Jul Aug: 193.3 mm (7.6 in), 16 August 1988 Aug Sep: 141.0 mm (5.6 in), 21 September 1974 Sep Oct: 319.8 mm (12.6 in), 7 October 1976 Oct Nov: 74.4 mm (2.9 in), 4 November 1981 Nov Dec: 80.3 mm (3.2 in), 19 December 1997 Dec
The wettest day on record for each calendar month at San Antonio Tejas. The most was 319.8 mm (12.6 in) on 7 October 1976.
Record daily precipitation for each month at San Antonio Tejas
MonthRecord daily precipitation (mm)Date
Jan91.9 mm (3.6 in)23 January 1980
Feb59.9 mm (2.4 in)3 February 1975
Mar42.9 mm (1.7 in)17 March 1966
Apr74.9 mm (2.9 in)2 April 1966
May109.0 mm (4.3 in)30 May 1978
Jun255.8 mm (10.1 in)22 June 1973
Jul228.3 mm (9.0 in)6 July 1993
Aug193.3 mm (7.6 in)16 August 1988
Sep141.0 mm (5.6 in)21 September 1974
Oct319.8 mm (12.6 in)7 October 1976
Nov74.4 mm (2.9 in)4 November 1981
Dec80.3 mm (3.2 in)19 December 1997

Period of Record Coverage

1961 to 2012
Days with data per year at San Antonio Tejas 43 years of record at San Antonio Tejas, 1961 to 2012. 17 years have data for under 90 percent of days and are left out of rankings: 1961, 1962, 1963, 1964, 1965, 1966, 1968, 1969 and others. 1961: 24 of 365 days1962: 211 of 365 days1963: 328 of 365 days1964: 279 of 366 days1965: 44 of 365 days1966: 237 of 365 days1967: 365 of 365 days1968: 215 of 366 days1969: 318 of 365 days1972: 302 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 364 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 147 of 365 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 310 of 365 days1992: 335 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 214 of 365 days1998: 365 of 365 days1999: 365 of 365 days2001: 275 of 365 days2002: 350 of 365 days2003: 356 of 365 days2004: 271 of 366 days2005: 293 of 365 days2006: 317 of 365 days2009: 270 of 365 days2010: 361 of 365 days2011: 365 of 365 days2012: 335 of 366 days19802010
43 years of record at San Antonio Tejas, 1961 to 2012. 17 years have data for under 90 percent of days and are left out of rankings: 1961, 1962, 1963, 1964, 1965, 1966, 1968, 1969 and others.
Days with data per year at San Antonio Tejas
YearDays with dataShare of yearComplete
1961247%No
196221158%No
196332890%No
196427976%No
19654412%No
196623765%No
1967365100%Yes
196821559%No
196931887%No
197230283%No
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978364100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
198214740%No
1985365100%Yes
1986365100%Yes
1987365100%Yes
1988366100%Yes
198931085%No
199233592%Yes
1993365100%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
199721459%No
1998365100%Yes
1999365100%Yes
200127575%No
200235096%Yes
200335698%Yes
200427174%No
200529380%No
200631787%No
200927074%No
201036199%Yes
2011365100%Yes
201233592%Yes

Latest Records

20
Latest records at San Antonio Tejas
DateStationRecordValueBeat old record byOld record stoodSignificance
3 November 2012San Antonio Tejas, MXdaily rain24.9 mm (1.0 in)6.1 mm (0.24 in)10 years12 of 100 (Routine)
28 October 2012San Antonio Tejas, MXdaily low min8.9 C (48.0 F)1.1 C (2.0 F)50 years23 of 100 (Routine)
27 October 2012San Antonio Tejas, MXdaily low min (Tie)8.9 C (48.0 F)tie7 years1 of 100 (Routine)
25 October 2012San Antonio Tejas, MXdaily low min (Tie)8.9 C (48.0 F)tie48 years4 of 100 (Routine)
24 October 2012San Antonio Tejas, MXdaily low min8.9 C (48.0 F)1.1 C (2.0 F)48 years22 of 100 (Routine)
23 October 2012San Antonio Tejas, MXdaily low min (Tie)8.9 C (48.0 F)tie48 years4 of 100 (Routine)
3 October 2012San Antonio Tejas, MXdaily low max (Tie)20.6 C (69.1 F)tie45 years4 of 100 (Routine)
18 September 2012San Antonio Tejas, MXdaily low max (Tie)20.0 C (68.0 F)tie49 years4 of 100 (Routine)
17 September 2012San Antonio Tejas, MXdaily low max (Tie)20.0 C (68.0 F)tie44 years4 of 100 (Routine)
15 September 2012San Antonio Tejas, MXdaily low max20.0 C (68.0 F)0.6 C (1.1 F)49 years20 of 100 (Routine)
14 September 2012San Antonio Tejas, MXdaily low max (Tie)20.0 C (68.0 F)tie49 years4 of 100 (Routine)
27 August 2012San Antonio Tejas, MXdaily low max (Tie)20.6 C (69.1 F)tie45 years4 of 100 (Routine)
22 August 2012San Antonio Tejas, MXdaily low max (Tie)20.6 C (69.1 F)tie48 years4 of 100 (Routine)
1 August 2012San Antonio Tejas, MXdaily low min8.9 C (48.0 F)1.1 C (2.0 F)46 years22 of 100 (Routine)
31 July 2012San Antonio Tejas, MXdaily low min (Tie)8.9 C (48.0 F)tie49 years4 of 100 (Routine)
30 June 2012San Antonio Tejas, MXdaily low max (Tie)20.0 C (68.0 F)tie50 years5 of 100 (Routine)
27 June 2012San Antonio Tejas, MXmonthly low max (Tie)17.8 C (64.0 F)tie43 years6 of 100 (Routine)
26 June 2012San Antonio Tejas, MXmonthly low max (Tie)17.8 C (64.0 F)tie43 years6 of 100 (Routine)
21 June 2012San Antonio Tejas, MXmonthly low max (Tie)17.8 C (64.0 F)tie42 years6 of 100 (Routine)
20 June 2012San Antonio Tejas, MXmonthly low max (Tie)17.8 C (64.0 F)tie42 years6 of 100 (Routine)

Climate Trend

23 complete years, 1967 to 2011
Annual mean temperature at San Antonio Tejas as warming stripes, 1967 to 2011 One stripe for each of 23 complete years at San Antonio Tejas, 1967 to 2011. Blue stripes are years cooler than the station's own mean of 20.5 C (69.0 F); red stripes are warmer. The coolest year was 2010, at 15.3 C (59.5 F), and the warmest was 1999, at 22.1 C (71.9 F). The strongest colour marks a difference of 5.3 C (9.5 F). 1967: 16.0 C, -4.5 C from the station mean1973: 21.0 C, +0.5 C from the station mean1974: 21.0 C, +0.4 C from the station mean1975: 21.0 C, +0.4 C from the station mean1976: 21.3 C, +0.7 C from the station mean1977: 21.7 C, +1.1 C from the station mean1978: 21.4 C, +0.8 C from the station mean1979: 21.4 C, +0.8 C from the station mean1980: 21.6 C, +1.0 C from the station mean1981: 21.1 C, +0.5 C from the station mean1985: 21.4 C, +0.8 C from the station mean1986: 21.6 C, +1.1 C from the station mean1987: 21.2 C, +0.7 C from the station mean1988: 20.8 C, +0.2 C from the station mean1993: 20.5 C, 0.0 C from the station mean1994: 20.7 C, +0.2 C from the station mean1995: 20.8 C, +0.2 C from the station mean1996: 20.9 C, +0.3 C from the station mean1998: 21.7 C, +1.1 C from the station mean1999: 22.1 C, +1.6 C from the station mean2003: 19.9 C, -0.6 C from the station mean2010: 15.3 C, -5.3 C from the station mean2011: 18.4 C, -2.1 C from the station mean1967197019751980198519901995200020052010
One stripe for each of 23 complete years at San Antonio Tejas, 1967 to 2011. Blue stripes are years cooler than the station's own mean of 20.5 C (69.0 F); red stripes are warmer. The coolest year was 2010, at 15.3 C (59.5 F), and the warmest was 1999, at 22.1 C (71.9 F). The strongest colour marks a difference of 5.3 C (9.5 F).
Annual mean temperature at San Antonio Tejas as warming stripes, 1967 to 2011
YearAnnual mean temperatureDifference from the station mean
196716.0 C-4.53 C
197321.0 C+0.47 C
197421.0 C+0.40 C
197521.0 C+0.44 C
197621.3 C+0.73 C
197721.7 C+1.14 C
197821.4 C+0.80 C
197921.4 C+0.84 C
198021.6 C+1.00 C
198121.1 C+0.52 C
198521.4 C+0.83 C
198621.6 C+1.05 C
198721.2 C+0.67 C
198820.8 C+0.22 C
199320.5 C-0.04 C
199420.7 C+0.19 C
199520.8 C+0.21 C
199620.9 C+0.34 C
199821.7 C+1.10 C
199922.1 C+1.59 C
200319.9 C-0.63 C
201015.3 C-5.27 C
201118.4 C-2.14 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 2012
Yearly extremes at San Antonio Tejas: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.9 C (102.0 F)199831.7 C (89.1 F)43
Coldest night (TNn)0.6 C (33.1 F)19676.7 C (44.1 F)45
Wettest day (Rx1day)319.8 mm (12.6 in)197679.8 mm (3.1 in)47
Wettest five days (Rx5day)414.9 mm (16.3 in)1976155.2 mm (6.1 in)47
Longest dry spell (CDD)170 days199888 days47

Hottest day (TXx)

Hottest day (TXx) at San Antonio Tejas by year The hottest day of the year at San Antonio Tejas, 1961 to 2012. The record is 38.9 C (102.0 F) in 1998, marked on the chart; the median year is 31.7 C (89.1 F). 202530354019701980199020002010Record: 38.9 C (102.0 F) in 1998
The hottest day of the year at San Antonio Tejas, 1961 to 2012. The record is 38.9 C (102.0 F) in 1998, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at San Antonio Tejas by year
YearHottest day (TXx)
196126.7 C (80.1 F)
196228.9 C (84.0 F)
196327.8 C (82.0 F)
196432.2 C (90.0 F)
196525.0 C (77.0 F)
196631.1 C (88.0 F)
196732.8 C (91.0 F)
196828.9 C (84.0 F)
196928.9 C (84.0 F)
197233.9 C (93.0 F)
197332.8 C (91.0 F)
197431.7 C (89.1 F)
197535.0 C (95.0 F)
197631.1 C (88.0 F)
197733.9 C (93.0 F)
197832.8 C (91.0 F)
197933.3 C (91.9 F)
198032.8 C (91.0 F)
198132.2 C (90.0 F)
198233.3 C (91.9 F)
198533.3 C (91.9 F)
198631.7 C (89.1 F)
198731.7 C (89.1 F)
198831.7 C (89.1 F)
198931.7 C (89.1 F)
1990n/a
1991n/a
199235.0 C (95.0 F)
199331.1 C (88.0 F)
199431.1 C (88.0 F)
199531.7 C (89.1 F)
199630.0 C (86.0 F)
199737.8 C (100.0 F)
199838.9 C (102.0 F)
199933.9 C (93.0 F)
200131.7 C (89.1 F)
200231.7 C (89.1 F)
200333.9 C (93.0 F)
200432.8 C (91.0 F)
200532.8 C (91.0 F)
200631.7 C (89.1 F)
2007n/a
2008n/a
200923.9 C (75.0 F)
201025.0 C (77.0 F)
201131.7 C (89.1 F)
201231.7 C (89.1 F)

Coldest night (TNn)

Coldest night (TNn) at San Antonio Tejas by year The coldest night of the year at San Antonio Tejas, 1961 to 2012. The record is 0.6 C (33.1 F) in 1967, marked on the chart; the median year is 6.7 C (44.1 F). 05101519701980199020002010Record: 0.6 C (33.1 F) in 1967
The coldest night of the year at San Antonio Tejas, 1961 to 2012. The record is 0.6 C (33.1 F) in 1967, marked on the chart; the median year is 6.7 C (44.1 F).
Coldest night (TNn) at San Antonio Tejas by year
YearColdest night (TNn)
19613.9 C (39.0 F)
19625.0 C (41.0 F)
19631.7 C (35.1 F)
19645.0 C (41.0 F)
19654.4 C (39.9 F)
19662.8 C (37.0 F)
19670.6 C (33.1 F)
19684.4 C (39.9 F)
19693.9 C (39.0 F)
19727.8 C (46.0 F)
19738.9 C (48.0 F)
197410.0 C (50.0 F)
19757.8 C (46.0 F)
19766.7 C (44.1 F)
19778.3 C (46.9 F)
19787.8 C (46.0 F)
19797.8 C (46.0 F)
19808.9 C (48.0 F)
19816.1 C (43.0 F)
19828.3 C (46.9 F)
198510.0 C (50.0 F)
198610.0 C (50.0 F)
198710.6 C (51.1 F)
19886.7 C (44.1 F)
19895.0 C (41.0 F)
1990n/a
1991n/a
19928.9 C (48.0 F)
19937.8 C (46.0 F)
19947.8 C (46.0 F)
19957.8 C (46.0 F)
19969.4 C (48.9 F)
19975.6 C (42.1 F)
19985.0 C (41.0 F)
199910.0 C (50.0 F)
200111.7 C (53.1 F)
20025.6 C (42.1 F)
20038.9 C (48.0 F)
20046.7 C (44.1 F)
20055.6 C (42.1 F)
20065.0 C (41.0 F)
20075.0 C (41.0 F)
20085.6 C (42.1 F)
20095.6 C (42.1 F)
20105.0 C (41.0 F)
20112.8 C (37.0 F)
20125.6 C (42.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at San Antonio Tejas by year The wettest day of the year at San Antonio Tejas, 1961 to 2012. The record is 319.8 mm (12.6 in) in 1976, marked on the chart; the median year is 79.8 mm (3.1 in). 010020030040019701980199020002010Record: 319.8 mm (12.6 in) in 1976
The wettest day of the year at San Antonio Tejas, 1961 to 2012. The record is 319.8 mm (12.6 in) in 1976, marked on the chart; the median year is 79.8 mm (3.1 in).
Wettest day (Rx1day) at San Antonio Tejas by year
YearWettest day (Rx1day)
19610.0 mm (0.00 in)
196240.9 mm (1.6 in)
196339.9 mm (1.6 in)
196441.9 mm (1.6 in)
196524.9 mm (1.0 in)
196674.9 mm (2.9 in)
196790.9 mm (3.6 in)
196881.8 mm (3.2 in)
196934.8 mm (1.4 in)
197260.5 mm (2.4 in)
1973255.8 mm (10.1 in)
1974141.0 mm (5.6 in)
197586.9 mm (3.4 in)
1976319.8 mm (12.6 in)
197759.9 mm (2.4 in)
1978109.0 mm (4.3 in)
197969.3 mm (2.7 in)
198091.9 mm (3.6 in)
1981137.9 mm (5.4 in)
198247.0 mm (1.9 in)
198555.9 mm (2.2 in)
1986128.8 mm (5.1 in)
198771.9 mm (2.8 in)
1988193.3 mm (7.6 in)
198979.8 mm (3.1 in)
199049.8 mm (2.0 in)
199163.0 mm (2.5 in)
1992112.8 mm (4.4 in)
1993228.3 mm (9.0 in)
199483.1 mm (3.3 in)
1995125.0 mm (4.9 in)
199681.8 mm (3.2 in)
199780.3 mm (3.2 in)
1998122.4 mm (4.8 in)
1999100.3 mm (3.9 in)
200148.8 mm (1.9 in)
2002106.7 mm (4.2 in)
200353.8 mm (2.1 in)
200470.4 mm (2.8 in)
200576.2 mm (3.0 in)
200685.6 mm (3.4 in)
200768.8 mm (2.7 in)
200880.3 mm (3.2 in)
200966.8 mm (2.6 in)
201074.4 mm (2.9 in)
2011119.9 mm (4.7 in)
201241.9 mm (1.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at San Antonio Tejas by year The wettest five days of the year at San Antonio Tejas, 1961 to 2012. The record is 414.9 mm (16.3 in) in 1976, marked on the chart; the median year is 155.2 mm (6.1 in). 020040060019701980199020002010Record: 414.9 mm (16.3 in) in 1976
The wettest five days of the year at San Antonio Tejas, 1961 to 2012. The record is 414.9 mm (16.3 in) in 1976, marked on the chart; the median year is 155.2 mm (6.1 in).
Wettest five days (Rx5day) at San Antonio Tejas by year
YearWettest five days (Rx5day)
19610.0 mm (0.00 in)
1962113.1 mm (4.5 in)
1963114.6 mm (4.5 in)
1964129.5 mm (5.1 in)
196572.5 mm (2.9 in)
1966154.2 mm (6.1 in)
1967205.8 mm (8.1 in)
1968132.6 mm (5.2 in)
196971.0 mm (2.8 in)
1972142.7 mm (5.6 in)
1973325.9 mm (12.8 in)
1974272.9 mm (10.7 in)
1975185.5 mm (7.3 in)
1976414.9 mm (16.3 in)
1977118.7 mm (4.7 in)
1978148.8 mm (5.9 in)
1979149.3 mm (5.9 in)
1980205.9 mm (8.1 in)
1981315.4 mm (12.4 in)
198292.2 mm (3.6 in)
1985100.4 mm (4.0 in)
1986167.6 mm (6.6 in)
1987155.2 mm (6.1 in)
1988365.6 mm (14.4 in)
1989185.0 mm (7.3 in)
199094.8 mm (3.7 in)
199195.7 mm (3.8 in)
1992186.5 mm (7.3 in)
1993359.9 mm (14.2 in)
1994207.1 mm (8.2 in)
1995199.4 mm (7.9 in)
1996177.4 mm (7.0 in)
1997115.4 mm (4.5 in)
1998256.2 mm (10.1 in)
1999254.3 mm (10.0 in)
2001121.3 mm (4.8 in)
2002252.5 mm (9.9 in)
2003130.3 mm (5.1 in)
2004170.4 mm (6.7 in)
2005131.6 mm (5.2 in)
2006158.1 mm (6.2 in)
200799.8 mm (3.9 in)
2008188.9 mm (7.4 in)
2009148.2 mm (5.8 in)
2010162.7 mm (6.4 in)
2011201.4 mm (7.9 in)
2012123.1 mm (4.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at San Antonio Tejas by year The longest dry spell of the year at San Antonio Tejas, 1961 to 2012. The record is 170 days in 1998, marked on the chart; the median year is 88 days. 05010015020019701980199020002010Record: 170 days in 1998
The longest dry spell of the year at San Antonio Tejas, 1961 to 2012. The record is 170 days in 1998, marked on the chart; the median year is 88 days.
Longest dry spell (CDD) at San Antonio Tejas by year
YearLongest dry spell (CDD)
196125 days
196238 days
1963127 days
196470 days
196589 days
196653 days
196744 days
196816 days
196970 days
197246 days
197394 days
197499 days
197586 days
1976119 days
1977116 days
197870 days
197964 days
198048 days
198150 days
1982119 days
1985118 days
198675 days
198789 days
198895 days
198997 days
1990141 days
1991124 days
199296 days
199377 days
1994129 days
199574 days
199676 days
199740 days
1998170 days
1999157 days
200138 days
200283 days
2003122 days
200462 days
200593 days
200676 days
200757 days
2008105 days
200988 days
2010126 days
2011111 days
201289 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

34 years, 1965 to 2012

A day with at least 88.1 mm (3.5 in) of rain is expected about once in 2 years. A day with at least 367.4 mm (14.5 in) of rain is expected about once in 100 years.

Rainfall return levels at San Antonio Tejas: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years88.1 mm (3.5 in)
5 years135.4 mm (5.3 in)
10 years175.6 mm (6.9 in)
25 years239.0 mm (9.4 in)
50 years297.5 mm (11.7 in)Longer than the 34 years of record
100 years367.4 mm (14.5 in)Longer than the 34 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, 34 years of values from 1965 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: 319.8 mm (12.6 in) in 1976; 255.8 mm (10.1 in) in 1973; 228.3 mm (9.0 in) in 1993.

Download the Data

  • Data for San Antonio Tejas standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for San Antonio Tejas 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

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