San Ildelfonso Villa Alta Threshold Days by Year (MXN00020177)
12 fixed thresholds counted per year at San Ildelfonso Villa Alta (MXN00020177): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for San Ildelfonso Villa Alta Thresholds
- San Ildelfonso Villa Alta: days with a maximum temperature at or above 30 C (86 F) in 47 years, most in 1973 with 132.
- San Ildelfonso Villa Alta: days with a maximum temperature at or above 90 F (32.2 C) in 47 years, most in 1973 with 62.
- San Ildelfonso Villa Alta: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 2006 with 67.
- San Ildelfonso Villa Alta: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 1952 with 40.
- 12 fixed thresholds have at least one qualifying day at San Ildelfonso Villa Alta.
Days at or above 30 C (86 F)
47 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1931 | 29 | 56.8 |
| 1932 | 74 | 56.8 |
| 1933 | 85 | 56.8 |
| 1934 | 46 | 56.8 |
| 1935 | 75 | 56.8 |
| 1939 | 32 | 56.8 |
| 1951 | 47 | 61 |
| 1952 | 44 | 61 |
| 1953 | 71 | 61 |
| 1954 | 53 | 61 |
| 1955 | 66 | 61 |
| 1956 | 40 | 61 |
| 1957 | 87 | 61 |
| 1958 | 76 | 61 |
| 1959 | 65 | 61 |
| 1960 | 99 | 73.4 |
| 1961 | 72 | 73.4 |
| 1962 | 68 | 73.4 |
| 1963 | 71 | 73.4 |
| 1964 | 74 | 73.4 |
| 1965 | 77 | 73.4 |
| 1966 | 66 | 73.4 |
| 1967 | 63 | 73.4 |
| 1968 | 67 | 73.4 |
| 1969 | 77 | 73.4 |
| 1970 | 63 | 83.3 |
| 1971 | 76 | 83.3 |
| 1972 | 82 | 83.3 |
| 1973 | 132 | 83.3 |
| 1975 | 115 | 83.3 |
| 1976 | 67 | 83.3 |
| 1977 | 81 | 83.3 |
| 1978 | 81 | 83.3 |
| 1979 | 53 | 83.3 |
| 1980 | 72 | 69.2 |
| 1981 | 57 | 69.2 |
| 1982 | 81 | 69.2 |
| 1983 | 78 | 69.2 |
| 1984 | 58 | 69.2 |
| 1993 | 90 | 90 |
| 2001 | 57 | 37.3 |
| 2002 | 46 | 37.3 |
| 2003 | 49 | 37.3 |
| 2004 | 33 | 37.3 |
| 2005 | 33 | 37.3 |
| 2006 | 29 | 37.3 |
| 2009 | 14 | 37.3 |
| Year | First date | Last date |
|---|---|---|
| 1931 | 1931-02-17 | 1931-09-27 |
| 1932 | 1932-02-22 | 1932-09-21 |
| 1933 | 1933-02-08 | 1933-09-25 |
| 1934 | 1934-02-28 | 1934-09-04 |
| 1935 | 1935-03-05 | 1935-09-05 |
| 1939 | 1939-04-25 | 1939-12-26 |
| 1951 | 1951-01-13 | 1951-12-22 |
| 1952 | 1952-01-26 | 1952-09-12 |
| 1953 | 1953-01-23 | 1953-12-29 |
| 1954 | 1954-01-21 | 1954-12-28 |
| 1955 | 1955-01-16 | 1955-11-16 |
| 1956 | 1956-01-21 | 1956-11-02 |
| 1957 | 1957-02-01 | 1957-11-19 |
| 1958 | 1958-01-28 | 1958-09-21 |
| 1959 | 1959-01-21 | 1959-12-28 |
| 1960 | 1960-01-01 | 1960-12-28 |
| 1961 | 1961-02-16 | 1961-12-17 |
| 1962 | 1962-01-05 | 1962-09-09 |
| 1963 | 1963-01-10 | 1963-12-11 |
| 1964 | 1964-01-19 | 1964-12-25 |
| 1965 | 1965-02-01 | 1965-12-14 |
| 1966 | 1966-02-09 | 1966-12-28 |
| 1967 | 1967-02-06 | 1967-12-18 |
| 1968 | 1968-02-21 | 1968-11-27 |
| 1969 | 1969-01-09 | 1969-12-29 |
| 1970 | 1970-01-16 | 1970-11-13 |
| 1971 | 1971-01-03 | 1971-12-31 |
| 1972 | 1972-01-13 | 1972-12-30 |
| 1973 | 1973-01-02 | 1973-12-24 |
| 1975 | 1975-01-08 | 1975-09-11 |
| 1976 | 1976-01-25 | 1976-11-28 |
| 1977 | 1977-01-28 | 1977-12-05 |
| 1978 | 1978-01-18 | 1978-12-07 |
| 1979 | 1979-01-20 | 1979-10-31 |
| 1980 | 1980-01-11 | 1980-10-28 |
| 1981 | 1981-02-01 | 1981-12-28 |
| 1982 | 1982-01-03 | 1982-09-12 |
| 1983 | 1983-01-31 | 1983-12-14 |
| 1984 | 1984-02-12 | 1984-06-07 |
| 1993 | 1993-02-16 | 1993-12-30 |
| 2001 | 2001-03-10 | 2001-10-12 |
| 2002 | 2002-03-01 | 2002-09-04 |
| 2003 | 2003-03-24 | 2003-09-08 |
| 2004 | 2004-01-29 | 2004-10-20 |
| 2005 | 2005-05-02 | 2005-09-25 |
| 2006 | 2006-04-05 | 2006-06-13 |
| 2009 | 2009-03-25 | 2009-06-13 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 47 | 132 | 1973 | 14 |
| 35 C (95 F): Days | 40 | 47 | 1975 | 1 |
| 40 C (104 F): Days | 1 | 2 | 1973 | 2 |
| 90 F (32.2 C): Days | 47 | 62 | 1973 | 2 |
| 100 F (37.8 C): Days | 22 | 17 | 1975 | 1 |
| 20 C (68 F): Tropical nights (min | 40 | 31 | 1965 | 30 |
| 25 C (77 F): Days with min | 3 | 1 | 1933 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 46 | 67 | 2006 | 45 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 46 | 40 | 1952 | 8 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 42 | 15 | 1952 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 13 | 3 | 1932 | 1 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 2 | 1 | 1932 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1931.
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).