San Martin Obispo Weather Records (MXN00015098)
Record envelope, standing records and threshold days for San Martin Obispo (MXN00015098), Mexico, with 49 years of record.
Key Facts for San Martin Obispo
- San Martin Obispo (MXN00015098) is a weather station in Mexico at 19.62 latitude and -99.18 longitude, 2,255 m (7,398 ft) above sea level.
- The station reports from 1964 to 2012, 49 years of record.
- 1,464 records set at San Martin Obispo still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- San Martin Obispo tied a daily record high minimum temperature of 14.4 C (57.9 F) on 26 July 2012.
About the Station
- Location: Mexico, 19.62 latitude, -99.18 longitude.
- Elevation: 2,255 m (7,398 ft).
- Period of record: 1964 to 2012, 49 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 27.8 C (82.0 F) | -6.7 C (19.9 F) | n/a | n/a |
| Feb | 30.0 C (86.0 F) | -6.7 C (19.9 F) | n/a | n/a |
| Mar | 31.1 C (88.0 F) | -3.9 C (25.0 F) | n/a | n/a |
| Apr | 31.7 C (89.1 F) | 1.7 C (35.1 F) | n/a | n/a |
| May | 33.9 C (93.0 F) | 3.3 C (37.9 F) | n/a | n/a |
| Jun | 31.7 C (89.1 F) | 3.9 C (39.0 F) | n/a | n/a |
| Jul | 28.9 C (84.0 F) | 5.6 C (42.1 F) | n/a | n/a |
| Aug | 28.3 C (82.9 F) | 1.7 C (35.1 F) | n/a | n/a |
| Sep | 27.8 C (82.0 F) | 0.0 C (32.0 F) | n/a | n/a |
| Oct | 28.3 C (82.9 F) | -1.1 C (30.0 F) | n/a | n/a |
| Nov | 26.7 C (80.1 F) | -3.3 C (26.1 F) | n/a | n/a |
| Dec | 25.6 C (78.1 F) | -4.4 C (24.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1975 | 38 |
| 1976 | 51 |
| 1977 | 42 |
| 1978 | 35 |
| 1979 | 52 |
| 1980 | 38 |
| 1981 | 44 |
| 1982 | 67 |
| 1983 | 92 |
| 1984 | 33 |
| 1985 | 27 |
| 1986 | 31 |
| 1990 | 26 |
| 1991 | 13 |
| 1992 | 20 |
| 1993 | 9 |
| 1994 | 39 |
| 1995 | 61 |
| 1996 | 102 |
| 1997 | 75 |
| 1998 | 57 |
| 1999 | 35 |
| 2000 | 22 |
| 2002 | 37 |
| 2003 | 54 |
| 2004 | 34 |
| 2005 | 50 |
| 2006 | 32 |
| 2007 | 42 |
| 2008 | 16 |
| 2009 | 66 |
| 2010 | 47 |
| 2011 | 61 |
| 2012 | 16 |
Wettest Day of Each Month
Aug: 73.7 mm (2.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 29.5 mm (1.2 in) | 10 January 1967 |
| Feb | 22.4 mm (0.9 in) | 4 February 2010 |
| Mar | 33.0 mm (1.3 in) | 30 March 1969 |
| Apr | 21.8 mm (0.9 in) | 12 April 2008 |
| May | 66.3 mm (2.6 in) | 21 May 1967 |
| Jun | 59.9 mm (2.4 in) | 30 June 2011 |
| Jul | 73.2 mm (2.9 in) | 17 July 2012 |
| Aug | 73.7 mm (2.9 in) | 28 August 1967 |
| Sep | 63.0 mm (2.5 in) | 27 September 1983 |
| Oct | 56.1 mm (2.2 in) | 10 October 1982 |
| Nov | 36.6 mm (1.4 in) | 5 November 2002 |
| Dec | 17.8 mm (0.7 in) | 4 December 1968 |
Period of Record Coverage
1975 to 2012| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1975 | 157 | 43% | No |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 363 | 99% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 363 | 99% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 337 | 92% | Yes |
| 1986 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 334 | 92% | Yes |
| 1992 | 336 | 92% | Yes |
| 1993 | 160 | 44% | No |
| 1994 | 317 | 87% | No |
| 1995 | 364 | 100% | Yes |
| 1996 | 305 | 83% | No |
| 1997 | 364 | 100% | Yes |
| 1998 | 351 | 96% | Yes |
| 1999 | 328 | 90% | No |
| 2000 | 364 | 99% | Yes |
| 2002 | 364 | 100% | Yes |
| 2003 | 346 | 95% | Yes |
| 2004 | 351 | 96% | Yes |
| 2005 | 341 | 93% | Yes |
| 2006 | 361 | 99% | Yes |
| 2007 | 364 | 100% | Yes |
| 2008 | 244 | 67% | No |
| 2009 | 333 | 91% | Yes |
| 2010 | 260 | 71% | No |
| 2011 | 365 | 100% | Yes |
| 2012 | 212 | 58% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 26 July 2012 | San Martin Obispo, MX | daily high min (Tie) | 14.4 C (57.9 F) | tie | 7 years | 1 of 100 (Routine) |
| 18 July 2012 | San Martin Obispo, MX | daily low max (Tie) | 20.0 C (68.0 F) | tie | 17 years | 2 of 100 (Routine) |
| 17 July 2012 | San Martin Obispo, MX | monthly rain | 73.2 mm (2.9 in) | 19.9 mm (0.8 in) | 1 year | 37 of 100 (Notable) |
| 17 July 2012 | San Martin Obispo, MX | daily high min (Tie) | 13.3 C (55.9 F) | tie | 5 years | 1 of 100 (Routine) |
| 28 June 2012 | San Martin Obispo, MX | daily high min | 15.0 C (59.0 F) | 1.1 C (2.0 F) | 2 years | 8 of 100 (Routine) |
| 27 June 2012 | San Martin Obispo, MX | daily high min (Tie) | 14.4 C (57.9 F) | tie | 3 years | 0 of 100 (Routine) |
| 22 June 2012 | San Martin Obispo, MX | daily rain | 31.0 mm (1.2 in) | 2.3 mm (0.09 in) | 27 years | 14 of 100 (Routine) |
| 19 June 2012 | San Martin Obispo, MX | daily low max (Tie) | 20.0 C (68.0 F) | tie | 34 years | 3 of 100 (Routine) |
| 19 June 2012 | San Martin Obispo, MX | daily high min (Tie) | 13.9 C (57.0 F) | tie | 35 years | 3 of 100 (Routine) |
| 31 May 2012 | San Martin Obispo, MX | daily high max (Tie) | 30.0 C (86.0 F) | tie | 22 years | 2 of 100 (Routine) |
| 16 May 2012 | San Martin Obispo, MX | daily rain | 11.7 mm (0.5 in) | 7.1 mm (0.28 in) | 2 years | 14 of 100 (Routine) |
| 14 May 2012 | San Martin Obispo, MX | daily low max | 18.9 C (66.0 F) | 1.1 C (2.0 F) | 28 years | 15 of 100 (Routine) |
| 13 April 2012 | San Martin Obispo, MX | daily high min | 12.2 C (54.0 F) | 0.5 C (0.9 F) | 26 years | 12 of 100 (Routine) |
| 11 April 2012 | San Martin Obispo, MX | daily rain | 13.7 mm (0.5 in) | 0.7 mm (0.03 in) | 8 years | 7 of 100 (Routine) |
| 18 March 2012 | San Martin Obispo, MX | daily rain | 8.9 mm (0.35 in) | 3.1 mm (0.12 in) | 34 years | 19 of 100 (Routine) |
| 11 March 2012 | San Martin Obispo, MX | daily high min (Tie) | 10.0 C (50.0 F) | tie | 31 years | 3 of 100 (Routine) |
| 8 March 2012 | San Martin Obispo, MX | daily high min (Tie) | 10.6 C (51.1 F) | tie | 31 years | 3 of 100 (Routine) |
| 3 March 2012 | San Martin Obispo, MX | daily high min | 11.1 C (52.0 F) | 1.7 C (3.1 F) | 9 years | 10 of 100 (Routine) |
| 2 March 2012 | San Martin Obispo, MX | daily high min (Tie) | 10.0 C (50.0 F) | tie | 5 years | 1 of 100 (Routine) |
| 29 February 2012 | San Martin Obispo, MX | daily high min | 8.9 C (48.0 F) | 2.2 C (4.0 F) | 12 years | 13 of 100 (Routine) |
Climate Trend
18 complete years, 1976 to 2011| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1976 | 14.2 C | -1.19 C |
| 1977 | 14.8 C | -0.59 C |
| 1978 | 15.0 C | -0.41 C |
| 1979 | 14.8 C | -0.58 C |
| 1980 | 15.1 C | -0.24 C |
| 1981 | 14.8 C | -0.57 C |
| 1982 | 15.4 C | +0.06 C |
| 1983 | 15.8 C | +0.40 C |
| 1984 | 15.4 C | +0.06 C |
| 1986 | 15.5 C | +0.14 C |
| 1990 | 16.1 C | +0.69 C |
| 1995 | 13.1 C | -2.28 C |
| 1997 | 12.9 C | -2.47 C |
| 2000 | 16.5 C | +1.08 C |
| 2002 | 16.7 C | +1.31 C |
| 2006 | 16.7 C | +1.29 C |
| 2007 | 16.7 C | +1.34 C |
| 2011 | 17.3 C | +1.94 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
1964 to 2012| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 33.9 C (93.0 F) | 1983 | 30.6 C (87.1 F) | 34 |
| Coldest night (TNn) | -6.7 C (19.9 F) | 1976 | -1.4 C (29.5 F) | 34 |
| Wettest day (Rx1day) | 73.7 mm (2.9 in) | 1967 | 44.7 mm (1.8 in) | 45 |
| Wettest five days (Rx5day) | 152.7 mm (6.0 in) | 2012 | 90.4 mm (3.6 in) | 45 |
| Longest dry spell (CDD) | 136 days | 1998 | 51 days | 45 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1964 | n/a |
| 1965 | n/a |
| 1966 | n/a |
| 1967 | n/a |
| 1968 | n/a |
| 1969 | n/a |
| 1970 | n/a |
| 1971 | n/a |
| 1972 | n/a |
| 1973 | n/a |
| 1974 | n/a |
| 1975 | 24.4 C (75.9 F) |
| 1976 | 27.8 C (82.0 F) |
| 1977 | 30.0 C (86.0 F) |
| 1978 | 30.6 C (87.1 F) |
| 1979 | 29.4 C (84.9 F) |
| 1980 | 28.9 C (84.0 F) |
| 1981 | 30.0 C (86.0 F) |
| 1982 | 30.6 C (87.1 F) |
| 1983 | 33.9 C (93.0 F) |
| 1984 | 31.7 C (89.1 F) |
| 1985 | 30.6 C (87.1 F) |
| 1986 | 30.6 C (87.1 F) |
| 1990 | 30.6 C (87.1 F) |
| 1991 | 30.6 C (87.1 F) |
| 1992 | 28.9 C (84.0 F) |
| 1993 | 30.6 C (87.1 F) |
| 1994 | 30.6 C (87.1 F) |
| 1995 | 26.7 C (80.1 F) |
| 1996 | 26.7 C (80.1 F) |
| 1997 | 27.8 C (82.0 F) |
| 1998 | 29.4 C (84.9 F) |
| 1999 | 30.6 C (87.1 F) |
| 2000 | 28.9 C (84.0 F) |
| 2002 | 30.6 C (87.1 F) |
| 2003 | 32.2 C (90.0 F) |
| 2004 | 28.9 C (84.0 F) |
| 2005 | 31.7 C (89.1 F) |
| 2006 | 31.1 C (88.0 F) |
| 2007 | 30.0 C (86.0 F) |
| 2008 | 30.6 C (87.1 F) |
| 2009 | 30.0 C (86.0 F) |
| 2010 | 30.6 C (87.1 F) |
| 2011 | 31.7 C (89.1 F) |
| 2012 | 30.0 C (86.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1964 | n/a |
| 1965 | n/a |
| 1966 | n/a |
| 1967 | n/a |
| 1968 | n/a |
| 1969 | n/a |
| 1970 | n/a |
| 1971 | n/a |
| 1972 | n/a |
| 1973 | n/a |
| 1974 | n/a |
| 1975 | -4.4 C (24.1 F) |
| 1976 | -6.7 C (19.9 F) |
| 1977 | -2.2 C (28.0 F) |
| 1978 | -2.8 C (27.0 F) |
| 1979 | -1.1 C (30.0 F) |
| 1980 | -3.9 C (25.0 F) |
| 1981 | -3.9 C (25.0 F) |
| 1982 | -4.4 C (24.1 F) |
| 1983 | -5.0 C (23.0 F) |
| 1984 | -2.2 C (28.0 F) |
| 1985 | -1.7 C (28.9 F) |
| 1986 | -6.7 C (19.9 F) |
| 1990 | -1.1 C (30.0 F) |
| 1991 | 1.1 C (34.0 F) |
| 1992 | -1.1 C (30.0 F) |
| 1993 | 0.6 C (33.1 F) |
| 1994 | 0.0 C (32.0 F) |
| 1995 | -1.7 C (28.9 F) |
| 1996 | -5.0 C (23.0 F) |
| 1997 | -5.0 C (23.0 F) |
| 1998 | -4.4 C (24.1 F) |
| 1999 | -5.0 C (23.0 F) |
| 2000 | 1.1 C (34.0 F) |
| 2002 | -0.6 C (30.9 F) |
| 2003 | 0.0 C (32.0 F) |
| 2004 | -1.1 C (30.0 F) |
| 2005 | 1.1 C (34.0 F) |
| 2006 | 0.0 C (32.0 F) |
| 2007 | 2.8 C (37.0 F) |
| 2008 | 0.0 C (32.0 F) |
| 2009 | -5.0 C (23.0 F) |
| 2010 | 2.2 C (36.0 F) |
| 2011 | 0.0 C (32.0 F) |
| 2012 | 0.6 C (33.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1964 | 12.7 mm (0.5 in) |
| 1965 | 30.0 mm (1.2 in) |
| 1966 | 39.9 mm (1.6 in) |
| 1967 | 73.7 mm (2.9 in) |
| 1968 | 26.2 mm (1.0 in) |
| 1969 | 35.1 mm (1.4 in) |
| 1970 | 52.3 mm (2.1 in) |
| 1971 | 44.7 mm (1.8 in) |
| 1972 | 34.8 mm (1.4 in) |
| 1973 | 44.2 mm (1.7 in) |
| 1974 | 52.3 mm (2.1 in) |
| 1975 | 33.3 mm (1.3 in) |
| 1976 | 40.6 mm (1.6 in) |
| 1977 | 46.0 mm (1.8 in) |
| 1978 | 36.6 mm (1.4 in) |
| 1979 | 39.9 mm (1.6 in) |
| 1980 | 35.3 mm (1.4 in) |
| 1981 | 43.2 mm (1.7 in) |
| 1982 | 56.1 mm (2.2 in) |
| 1983 | 63.0 mm (2.5 in) |
| 1984 | 31.8 mm (1.3 in) |
| 1985 | 53.8 mm (2.1 in) |
| 1986 | 46.0 mm (1.8 in) |
| 1990 | 39.4 mm (1.6 in) |
| 1991 | 47.0 mm (1.9 in) |
| 1992 | 43.4 mm (1.7 in) |
| 1993 | 33.3 mm (1.3 in) |
| 1994 | 45.7 mm (1.8 in) |
| 1995 | 69.3 mm (2.7 in) |
| 1996 | 50.3 mm (2.0 in) |
| 1997 | 51.6 mm (2.0 in) |
| 1998 | 62.7 mm (2.5 in) |
| 1999 | 47.0 mm (1.9 in) |
| 2000 | 61.0 mm (2.4 in) |
| 2002 | 43.9 mm (1.7 in) |
| 2003 | 41.7 mm (1.6 in) |
| 2004 | 43.2 mm (1.7 in) |
| 2005 | 47.5 mm (1.9 in) |
| 2006 | 50.8 mm (2.0 in) |
| 2007 | 41.1 mm (1.6 in) |
| 2008 | 34.0 mm (1.3 in) |
| 2009 | 46.0 mm (1.8 in) |
| 2010 | 53.3 mm (2.1 in) |
| 2011 | 59.9 mm (2.4 in) |
| 2012 | 73.2 mm (2.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1964 | 22.3 mm (0.9 in) |
| 1965 | 63.3 mm (2.5 in) |
| 1966 | 56.6 mm (2.2 in) |
| 1967 | 145.9 mm (5.7 in) |
| 1968 | 76.2 mm (3.0 in) |
| 1969 | 98.8 mm (3.9 in) |
| 1970 | 90.4 mm (3.6 in) |
| 1971 | 71.1 mm (2.8 in) |
| 1972 | 68.4 mm (2.7 in) |
| 1973 | 93.8 mm (3.7 in) |
| 1974 | 111.5 mm (4.4 in) |
| 1975 | 84.4 mm (3.3 in) |
| 1976 | 96.1 mm (3.8 in) |
| 1977 | 85.1 mm (3.4 in) |
| 1978 | 69.9 mm (2.8 in) |
| 1979 | 89.6 mm (3.5 in) |
| 1980 | 64.6 mm (2.5 in) |
| 1981 | 69.2 mm (2.7 in) |
| 1982 | 88.2 mm (3.5 in) |
| 1983 | 122.2 mm (4.8 in) |
| 1984 | 65.3 mm (2.6 in) |
| 1985 | 120.6 mm (4.7 in) |
| 1986 | 97.8 mm (3.9 in) |
| 1990 | 67.7 mm (2.7 in) |
| 1991 | 98.1 mm (3.9 in) |
| 1992 | 75.4 mm (3.0 in) |
| 1993 | 61.4 mm (2.4 in) |
| 1994 | 94.6 mm (3.7 in) |
| 1995 | 90.4 mm (3.6 in) |
| 1996 | 101.2 mm (4.0 in) |
| 1997 | 114.3 mm (4.5 in) |
| 1998 | 142.0 mm (5.6 in) |
| 1999 | 128.1 mm (5.0 in) |
| 2000 | 102.6 mm (4.0 in) |
| 2002 | 91.6 mm (3.6 in) |
| 2003 | 71.4 mm (2.8 in) |
| 2004 | 128.5 mm (5.1 in) |
| 2005 | 107.2 mm (4.2 in) |
| 2006 | 84.6 mm (3.3 in) |
| 2007 | 89.7 mm (3.5 in) |
| 2008 | 59.5 mm (2.3 in) |
| 2009 | 78.9 mm (3.1 in) |
| 2010 | 100.6 mm (4.0 in) |
| 2011 | 94.8 mm (3.7 in) |
| 2012 | 152.7 mm (6.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1964 | 19 days |
| 1965 | 51 days |
| 1966 | 61 days |
| 1967 | 64 days |
| 1968 | 45 days |
| 1969 | 62 days |
| 1970 | 60 days |
| 1971 | 76 days |
| 1972 | 70 days |
| 1973 | 57 days |
| 1974 | 56 days |
| 1975 | 65 days |
| 1976 | 39 days |
| 1977 | 80 days |
| 1978 | 43 days |
| 1979 | 41 days |
| 1980 | 39 days |
| 1981 | 36 days |
| 1982 | 60 days |
| 1983 | 55 days |
| 1984 | 49 days |
| 1985 | 49 days |
| 1986 | 105 days |
| 1990 | 40 days |
| 1991 | 22 days |
| 1992 | 52 days |
| 1993 | 27 days |
| 1994 | 62 days |
| 1995 | 40 days |
| 1996 | 64 days |
| 1997 | 44 days |
| 1998 | 136 days |
| 1999 | 48 days |
| 2000 | 53 days |
| 2002 | 46 days |
| 2003 | 59 days |
| 2004 | 60 days |
| 2005 | 49 days |
| 2006 | 32 days |
| 2007 | 31 days |
| 2008 | 57 days |
| 2009 | 53 days |
| 2010 | 48 days |
| 2011 | 47 days |
| 2012 | 22 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
39 years, 1965 to 2011A day with at least 44.8 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 77.4 mm (3.0 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 44.8 mm (1.8 in) | |
| 5 years | 54.4 mm (2.1 in) | |
| 10 years | 60.4 mm (2.4 in) | |
| 25 years | 67.6 mm (2.7 in) | |
| 50 years | 72.6 mm (2.9 in) | Longer than the 39 years of record |
| 100 years | 77.4 mm (3.0 in) | Longer than the 39 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, 39 years of values from 1965 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: 73.7 mm (2.9 in) in 1967; 69.3 mm (2.7 in) in 1995; 63.0 mm (2.5 in) in 1983.
Download the Data
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).