San Miguel El Alto Threshold Days by Year (MXN00014131)
12 fixed thresholds counted per year at San Miguel El Alto (MXN00014131): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for San Miguel El Alto Thresholds
- San Miguel El Alto: days with 10 mm (0.39 in) or more of precipitation in 50 years, most in 1965 with 37.
- San Miguel El Alto: days with 25 mm (0.98 in) or more of precipitation in 50 years, most in 1942 with 12.
- San Miguel El Alto: days with a maximum temperature at or above 30 C (86 F) in 48 years, most in 1997 with 248.
- San Miguel El Alto: nights with a minimum temperature at or below 0 C (32 F) in 47 years, most in 1999 with 51.
- 12 fixed thresholds have at least one qualifying day at San Miguel El Alto.
Days at or above 30 C (86 F)
48 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1942 | 140 | 68.3 |
| 1943 | 154 | 68.3 |
| 1944 | 36 | 68.3 |
| 1945 | 57 | 68.3 |
| 1946 | 49 | 68.3 |
| 1947 | 29 | 68.3 |
| 1948 | 41 | 68.3 |
| 1949 | 40 | 68.3 |
| 1950 | 38 | 49.1 |
| 1951 | 48 | 49.1 |
| 1952 | 66 | 49.1 |
| 1953 | 63 | 49.1 |
| 1954 | 75 | 49.1 |
| 1955 | 81 | 49.1 |
| 1957 | 59 | 49.1 |
| 1958 | 5 | 49.1 |
| 1959 | 7 | 49.1 |
| 1963 | 20 | 48.8 |
| 1964 | 64 | 48.8 |
| 1965 | 57 | 48.8 |
| 1968 | 54 | 48.8 |
| 1970 | 22 | 49 |
| 1971 | 31 | 49 |
| 1972 | 48 | 49 |
| 1974 | 41 | 49 |
| 1975 | 41 | 49 |
| 1976 | 43 | 49 |
| 1977 | 62 | 49 |
| 1978 | 73 | 49 |
| 1979 | 80 | 49 |
| 1980 | 69 | 63.2 |
| 1981 | 51 | 63.2 |
| 1982 | 88 | 63.2 |
| 1983 | 53 | 63.2 |
| 1984 | 44 | 63.2 |
| 1985 | 62 | 63.2 |
| 1986 | 56 | 63.2 |
| 1987 | 54 | 63.2 |
| 1988 | 68 | 63.2 |
| 1989 | 87 | 63.2 |
| 1990 | 79 | 117 |
| 1993 | 25 | 117 |
| 1994 | 105 | 117 |
| 1995 | 124 | 117 |
| 1996 | 150 | 117 |
| 1997 | 248 | 117 |
| 1998 | 109 | 117 |
| 1999 | 96 | 117 |
| Year | First date | Last date |
|---|---|---|
| 1942 | 1942-03-13 | 1942-12-31 |
| 1943 | 1943-01-01 | 1943-08-20 |
| 1944 | 1944-04-11 | 1944-07-07 |
| 1945 | 1945-03-05 | 1945-06-27 |
| 1946 | 1946-03-18 | 1946-09-15 |
| 1947 | 1947-03-24 | 1947-07-12 |
| 1948 | 1948-03-17 | 1948-06-09 |
| 1949 | 1949-03-22 | 1949-06-15 |
| 1950 | 1950-02-28 | 1950-06-08 |
| 1951 | 1951-02-26 | 1951-11-16 |
| 1952 | 1952-02-28 | 1952-12-19 |
| 1953 | 1953-03-05 | 1953-08-10 |
| 1954 | 1954-03-06 | 1954-08-07 |
| 1955 | 1955-02-26 | 1955-06-26 |
| 1957 | 1957-04-12 | 1957-09-03 |
| 1958 | 1958-05-10 | 1958-06-12 |
| 1959 | 1959-05-28 | 1959-07-13 |
| 1963 | 1963-04-11 | 1963-06-07 |
| 1964 | 1964-03-30 | 1964-06-15 |
| 1965 | 1965-03-14 | 1965-06-18 |
| 1968 | 1968-03-23 | 1968-08-13 |
| 1970 | 1970-04-01 | 1970-06-13 |
| 1971 | 1971-03-29 | 1971-10-16 |
| 1972 | 1972-04-04 | 1972-06-30 |
| 1974 | 1974-03-01 | 1974-06-28 |
| 1975 | 1975-03-06 | 1975-06-16 |
| 1976 | 1976-03-11 | 1976-07-02 |
| 1977 | 1977-03-14 | 1977-10-11 |
| 1978 | 1978-03-15 | 1978-07-19 |
| 1979 | 1979-03-14 | 1979-10-22 |
| 1980 | 1980-03-08 | 1980-08-04 |
| 1981 | 1981-03-31 | 1981-06-14 |
| 1982 | 1982-03-11 | 1982-10-01 |
| 1983 | 1983-04-17 | 1983-06-30 |
| 1984 | 1984-03-16 | 1984-06-08 |
| 1985 | 1985-03-03 | 1985-06-17 |
| 1986 | 1986-02-19 | 1986-11-18 |
| 1987 | 1987-04-01 | 1987-09-19 |
| 1988 | 1988-02-03 | 1988-11-16 |
| 1989 | 1989-02-28 | 1989-11-15 |
| 1990 | 1990-03-06 | 1990-06-19 |
| 1993 | 1993-04-26 | 1993-10-16 |
| 1994 | 1994-03-06 | 1994-12-17 |
| 1995 | 1995-02-13 | 1995-12-06 |
| 1996 | 1996-01-29 | 1996-12-29 |
| 1997 | 1997-01-01 | 1997-11-20 |
| 1998 | 1998-02-23 | 1998-08-13 |
| 1999 | 1999-03-11 | 1999-10-10 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 48 | 248 | 1997 | 96 |
| 35 C (95 F): Days | 23 | 128 | 1943 | 16 |
| 40 C (104 F): Days | 1 | 27 | 1943 | 27 |
| 90 F (32.2 C): Days | 44 | 144 | 1943 | 57 |
| 100 F (37.8 C): Days | 4 | 78 | 1943 | 4 |
| 0 C (32 F): Frost days (min | 47 | 51 | 1999 | 51 |
| -10 C (14 F): Days with min | 1 | 1 | 1997 | 1 |
| 20 C (68 F): Tropical nights (min | 2 | 1 | 1952 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 50 | 37 | 1965 | 17 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 50 | 12 | 1942 | 5 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 26 | 3 | 1976 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1944 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1942.
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).