San Anton Threshold Days by Year (MXN00011061)
10 fixed thresholds counted per year at San Anton (MXN00011061): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for San Anton Thresholds
- San Anton: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1967 with 32.
- San Anton: days with 25 mm (0.98 in) or more of precipitation in 36 years, most in 1964 with 11.
- San Anton: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 1980 with 32.
- San Anton: days with a maximum temperature at or above 30 C (86 F) in 20 years, most in 2004 with 159.
- 10 fixed thresholds have at least one qualifying day at San Anton.
Days at or above 30 C (86 F)
20 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1964 | 60 | 99.2 |
| 1965 | 128 | 99.2 |
| 1966 | 106 | 99.2 |
| 1967 | 120 | 99.2 |
| 1969 | 82 | 99.2 |
| 1972 | 14 | 5.7 |
| 1973 | 1 | 5.7 |
| 1975 | 2 | 5.7 |
| 1983 | 14 | 6 |
| 1986 | 3 | 6 |
| 1988 | 1 | 6 |
| 1998 | 23 | 55.5 |
| 1999 | 88 | 55.5 |
| 2003 | 7 | 57 |
| 2004 | 159 | 57 |
| 2006 | 8 | 57 |
| 2007 | 54 | 57 |
| 2010 | 67 | 57.3 |
| 2011 | 44 | 57.3 |
| 2012 | 61 | 57.3 |
| Year | First date | Last date |
|---|---|---|
| 1964 | 1964-02-13 | 1964-08-29 |
| 1965 | 1965-02-01 | 1965-12-25 |
| 1966 | 1966-01-02 | 1966-10-17 |
| 1967 | 1967-01-25 | 1967-11-17 |
| 1969 | 1969-02-01 | 1969-11-13 |
| 1972 | 1972-04-07 | 1972-05-17 |
| 1973 | 1973-05-27 | 1973-05-27 |
| 1975 | 1975-04-17 | 1975-05-16 |
| 1983 | 1983-05-02 | 1983-05-31 |
| 1986 | 1986-03-31 | 1986-05-11 |
| 1988 | 1988-08-08 | 1988-08-08 |
| 1998 | 1998-04-08 | 1998-08-20 |
| 1999 | 1999-03-01 | 1999-05-31 |
| 2003 | 2003-05-01 | 2003-05-12 |
| 2004 | 2004-03-01 | 2004-10-31 |
| 2006 | 2006-03-14 | 2006-06-04 |
| 2007 | 2007-06-02 | 2007-10-27 |
| 2010 | 2010-05-06 | 2010-09-08 |
| 2011 | 2011-03-27 | 2011-10-21 |
| 2012 | 2012-04-06 | 2012-09-25 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 20 | 159 | 2004 | 61 |
| 35 C (95 F): Days | 10 | 40 | 1965 | 1 |
| 40 C (104 F): Days | 1 | 2 | 1967 | 2 |
| 90 F (32.2 C): Days | 13 | 75 | 1965 | 10 |
| 100 F (37.8 C): Days | 4 | 8 | 1967 | 1 |
| 0 C (32 F): Frost days (min | 33 | 32 | 1980 | 2 |
| 20 C (68 F): Tropical nights (min | 4 | 2 | 1964 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 40 | 32 | 1967 | 20 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 36 | 11 | 1964 | 6 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 18 | 3 | 1964 | 3 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1964.
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). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).