Zapotlanejo (Smn) Threshold Days by Year (MXN00014171)
9 fixed thresholds counted per year at Zapotlanejo (Smn) (MXN00014171): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Zapotlanejo (Smn) Thresholds
- Zapotlanejo (Smn): days with a maximum temperature at or above 30 C (86 F) in 34 years, most in 1953 with 197.
- Zapotlanejo (Smn): days with a maximum temperature at or above 90 F (32.2 C) in 34 years, most in 1952 with 159.
- Zapotlanejo (Smn): days with a maximum temperature at or above 35 C (95 F) in 29 years, most in 1952 with 86.
- Zapotlanejo (Smn): days with 10 mm (0.39 in) or more of precipitation in 24 years, most in 1951 with 51.
- 9 fixed thresholds have at least one qualifying day at Zapotlanejo (Smn).
Days at or above 30 C (86 F)
34 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1950 | 60 | 127.2 |
| 1951 | 67 | 127.2 |
| 1952 | 188 | 127.2 |
| 1953 | 197 | 127.2 |
| 1956 | 124 | 127.2 |
| 1960 | 94 | 89.9 |
| 1961 | 108 | 89.9 |
| 1965 | 121 | 89.9 |
| 1966 | 101 | 89.9 |
| 1967 | 79 | 89.9 |
| 1968 | 46 | 89.9 |
| 1969 | 80 | 89.9 |
| 1970 | 99 | 115.4 |
| 1971 | 178 | 115.4 |
| 1972 | 115 | 115.4 |
| 1973 | 98 | 115.4 |
| 1974 | 55 | 115.4 |
| 1975 | 103 | 115.4 |
| 1976 | 114 | 115.4 |
| 1978 | 161 | 115.4 |
| 1987 | 90 | 104 |
| 1988 | 105 | 104 |
| 1989 | 117 | 104 |
| 1991 | 112 | 123 |
| 1993 | 93 | 123 |
| 1994 | 98 | 123 |
| 1995 | 109 | 123 |
| 1996 | 155 | 123 |
| 1997 | 169 | 123 |
| 1998 | 119 | 123 |
| 1999 | 129 | 123 |
| 2000 | 133 | 155 |
| 2001 | 163 | 155 |
| 2002 | 169 | 155 |
| Year | First date | Last date |
|---|---|---|
| 1950 | 1950-03-26 | 1950-06-05 |
| 1951 | 1951-05-07 | 1951-11-18 |
| 1952 | 1952-04-02 | 1952-10-31 |
| 1953 | 1953-05-07 | 1953-12-31 |
| 1956 | 1956-04-04 | 1956-09-30 |
| 1960 | 1960-03-06 | 1960-11-27 |
| 1961 | 1961-02-25 | 1961-11-16 |
| 1965 | 1965-03-09 | 1965-11-28 |
| 1966 | 1966-03-04 | 1966-11-12 |
| 1967 | 1967-02-16 | 1967-06-21 |
| 1968 | 1968-03-31 | 1968-06-18 |
| 1969 | 1969-01-30 | 1969-12-25 |
| 1970 | 1970-01-01 | 1970-12-30 |
| 1971 | 1971-01-01 | 1971-12-31 |
| 1972 | 1972-01-06 | 1972-11-14 |
| 1973 | 1973-02-04 | 1973-11-07 |
| 1974 | 1974-03-03 | 1974-05-22 |
| 1975 | 1975-03-02 | 1975-12-04 |
| 1976 | 1976-02-11 | 1976-12-31 |
| 1978 | 1978-01-01 | 1978-11-23 |
| 1987 | 1987-02-07 | 1987-10-15 |
| 1988 | 1988-02-03 | 1988-11-20 |
| 1989 | 1989-02-16 | 1989-11-18 |
| 1991 | 1991-01-01 | 1991-07-02 |
| 1993 | 1993-02-13 | 1993-10-12 |
| 1994 | 1994-02-07 | 1994-11-14 |
| 1995 | 1995-02-14 | 1995-12-06 |
| 1996 | 1996-01-29 | 1996-12-12 |
| 1997 | 1997-02-05 | 1997-12-09 |
| 1998 | 1998-02-23 | 1998-08-04 |
| 1999 | 1999-01-30 | 1999-10-08 |
| 2000 | 2000-01-26 | 2000-10-05 |
| 2001 | 2001-02-10 | 2001-12-02 |
| 2002 | 2002-01-18 | 2002-12-14 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 34 | 197 | 1953 | 169 |
| 35 C (95 F): Days | 29 | 86 | 1952 | 47 |
| 90 F (32.2 C): Days | 34 | 159 | 1952 | 89 |
| 100 F (37.8 C): Days | 8 | 6 | 2002 | 6 |
| 0 C (32 F): Frost days (min | 9 | 4 | 1974 | 2 |
| 20 C (68 F): Tropical nights (min | 11 | 8 | 1993 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 24 | 51 | 1951 | 21 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 24 | 15 | 1951 | 5 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 15 | 5 | 1975 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.
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).