Zacatlan Threshold Days by Year (MXN00021107)
9 fixed thresholds counted per year at Zacatlan (MXN00021107): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Zacatlan Thresholds
- Zacatlan: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 1984 with 48.
- Zacatlan: days with 25 mm (0.98 in) or more of precipitation in 36 years, most in 1976 with 18.
- Zacatlan: days with a maximum temperature at or above 30 C (86 F) in 34 years, most in 1964 with 29.
- Zacatlan: nights with a minimum temperature at or below 0 C (32 F) in 32 years, most in 1963 with 18.
- 9 fixed thresholds have at least one qualifying day at Zacatlan.
Days at or above 30 C (86 F)
34 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1956 | 7 | 11.8 |
| 1957 | 19 | 11.8 |
| 1958 | 20 | 11.8 |
| 1959 | 1 | 11.8 |
| 1960 | 14 | 15.9 |
| 1961 | 15 | 15.9 |
| 1962 | 25 | 15.9 |
| 1963 | 9 | 15.9 |
| 1964 | 29 | 15.9 |
| 1965 | 19 | 15.9 |
| 1967 | 10 | 15.9 |
| 1969 | 6 | 15.9 |
| 1970 | 5 | 10 |
| 1971 | 13 | 10 |
| 1972 | 9 | 10 |
| 1973 | 15 | 10 |
| 1974 | 4 | 10 |
| 1975 | 18 | 10 |
| 1977 | 9 | 10 |
| 1978 | 5 | 10 |
| 1979 | 12 | 10 |
| 1980 | 2 | 4.8 |
| 1982 | 4 | 4.8 |
| 1983 | 11 | 4.8 |
| 1984 | 8 | 4.8 |
| 1985 | 1 | 4.8 |
| 1989 | 3 | 4.8 |
| 1990 | 1 | 2.5 |
| 1991 | 5 | 2.5 |
| 1993 | 3 | 2.5 |
| 1994 | 1 | 2.5 |
| 2007 | 2 | 3 |
| 2008 | 1 | 3 |
| 2009 | 6 | 3 |
| Year | First date | Last date |
|---|---|---|
| 1956 | 1956-03-06 | 1956-04-15 |
| 1957 | 1957-03-21 | 1957-06-28 |
| 1958 | 1958-03-08 | 1958-05-10 |
| 1959 | 1959-04-29 | 1959-04-29 |
| 1960 | 1960-03-10 | 1960-05-20 |
| 1961 | 1961-04-13 | 1961-05-14 |
| 1962 | 1962-02-23 | 1962-06-09 |
| 1963 | 1963-03-11 | 1963-06-06 |
| 1964 | 1964-02-27 | 1964-05-11 |
| 1965 | 1965-03-01 | 1965-06-17 |
| 1967 | 1967-04-23 | 1967-09-20 |
| 1969 | 1969-03-24 | 1969-06-11 |
| 1970 | 1970-03-25 | 1970-05-09 |
| 1971 | 1971-02-20 | 1971-05-24 |
| 1972 | 1972-04-07 | 1972-05-23 |
| 1973 | 1973-03-12 | 1973-05-27 |
| 1974 | 1974-05-10 | 1974-05-16 |
| 1975 | 1975-03-12 | 1975-04-29 |
| 1977 | 1977-03-11 | 1977-04-04 |
| 1978 | 1978-04-17 | 1978-05-12 |
| 1979 | 1979-04-02 | 1979-05-29 |
| 1980 | 1980-03-23 | 1980-03-28 |
| 1982 | 1982-04-02 | 1982-04-15 |
| 1983 | 1983-03-20 | 1983-06-13 |
| 1984 | 1984-04-02 | 1984-05-06 |
| 1985 | 1985-05-13 | 1985-05-13 |
| 1989 | 1989-05-17 | 1989-06-08 |
| 1990 | 1990-05-28 | 1990-05-28 |
| 1991 | 1991-03-03 | 1991-04-29 |
| 1993 | 1993-03-30 | 1993-06-04 |
| 1994 | 1994-03-27 | 1994-03-27 |
| 2007 | 2007-02-01 | 2007-05-06 |
| 2008 | 2008-04-11 | 2008-04-11 |
| 2009 | 2009-03-26 | 2009-04-12 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 34 | 29 | 1964 | 6 |
| 35 C (95 F): Days | 4 | 2 | 1957 | 1 |
| 90 F (32.2 C): Days | 14 | 8 | 1958 | 1 |
| 0 C (32 F): Frost days (min | 32 | 18 | 1963 | 12 |
| 20 C (68 F): Tropical nights (min | 1 | 2 | 1994 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 36 | 48 | 1984 | 21 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 36 | 18 | 1976 | 7 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 25 | 4 | 2007 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 6 | 1 | 1958 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1956.
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).