Santiago Choapan Threshold Days by Year (MXN00020030)
12 fixed thresholds counted per year at Santiago Choapan (MXN00020030): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Santiago Choapan Thresholds
- Santiago Choapan: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 1964 with 98.
- Santiago Choapan: days with 25 mm (0.98 in) or more of precipitation in 36 years, most in 1964 with 63.
- Santiago Choapan: nights with a minimum temperature at or above 20 C (68 F) in 35 years, most in 1953 with 145.
- Santiago Choapan: days with 50 mm (1.97 in) or more of precipitation in 35 years, most in 2006 with 22.
- 12 fixed thresholds have at least one qualifying day at Santiago Choapan.
Days at or above 30 C (86 F)
34 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1953 | 110 | 58.3 |
| 1954 | 44 | 58.3 |
| 1955 | 81 | 58.3 |
| 1956 | 35 | 58.3 |
| 1957 | 60 | 58.3 |
| 1958 | 42 | 58.3 |
| 1959 | 36 | 58.3 |
| 1960 | 22 | 33.3 |
| 1961 | 66 | 33.3 |
| 1962 | 69 | 33.3 |
| 1963 | 67 | 33.3 |
| 1964 | 22 | 33.3 |
| 1965 | 9 | 33.3 |
| 1967 | 27 | 33.3 |
| 1968 | 15 | 33.3 |
| 1969 | 3 | 33.3 |
| 1972 | 17 | 41.3 |
| 1973 | 57 | 41.3 |
| 1974 | 33 | 41.3 |
| 1975 | 56 | 41.3 |
| 1976 | 29 | 41.3 |
| 1977 | 43 | 41.3 |
| 1978 | 51 | 41.3 |
| 1979 | 44 | 41.3 |
| 1980 | 70 | 52 |
| 1981 | 29 | 52 |
| 1982 | 40 | 52 |
| 1983 | 58 | 52 |
| 1984 | 63 | 52 |
| 2006 | 35 | 32.5 |
| 2007 | 32 | 32.5 |
| 2008 | 32 | 32.5 |
| 2009 | 31 | 32.5 |
| 2010 | 29 | 29 |
| Year | First date | Last date |
|---|---|---|
| 1953 | 1953-01-07 | 1953-12-28 |
| 1954 | 1954-01-15 | 1954-11-28 |
| 1955 | 1955-01-16 | 1955-09-19 |
| 1956 | 1956-01-22 | 1956-09-13 |
| 1957 | 1957-01-30 | 1957-11-18 |
| 1958 | 1958-02-02 | 1958-09-22 |
| 1959 | 1959-01-21 | 1959-11-05 |
| 1960 | 1960-04-26 | 1960-09-04 |
| 1961 | 1961-04-11 | 1961-10-28 |
| 1962 | 1962-02-09 | 1962-11-28 |
| 1963 | 1963-03-11 | 1963-11-01 |
| 1964 | 1964-03-24 | 1964-09-03 |
| 1965 | 1965-03-15 | 1965-08-30 |
| 1967 | 1967-04-26 | 1967-08-24 |
| 1968 | 1968-03-08 | 1968-05-30 |
| 1969 | 1969-05-28 | 1969-06-30 |
| 1972 | 1972-04-04 | 1972-12-13 |
| 1973 | 1973-01-18 | 1973-12-24 |
| 1974 | 1974-02-02 | 1974-06-09 |
| 1975 | 1975-02-11 | 1975-07-10 |
| 1976 | 1976-01-25 | 1976-06-15 |
| 1977 | 1977-01-09 | 1977-09-01 |
| 1978 | 1978-02-12 | 1978-12-20 |
| 1979 | 1979-01-07 | 1979-10-31 |
| 1980 | 1980-03-01 | 1980-12-10 |
| 1981 | 1981-02-01 | 1981-10-31 |
| 1982 | 1982-01-01 | 1982-12-25 |
| 1983 | 1983-01-31 | 1983-12-03 |
| 1984 | 1984-02-12 | 1984-12-11 |
| 2006 | 2006-01-01 | 2006-10-17 |
| 2007 | 2007-02-24 | 2007-07-24 |
| 2008 | 2008-03-15 | 2008-05-24 |
| 2009 | 2009-03-25 | 2009-06-13 |
| 2010 | 2010-03-10 | 2010-07-01 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 34 | 110 | 1953 | 29 |
| 35 C (95 F): Days | 18 | 29 | 1953 | 1 |
| 40 C (104 F): Days | 2 | 2 | 1953 | 1 |
| 90 F (32.2 C): Days | 28 | 47 | 1953 | 5 |
| 100 F (37.8 C): Days | 5 | 10 | 1953 | 8 |
| 20 C (68 F): Tropical nights (min | 35 | 145 | 1953 | 75 |
| 25 C (77 F): Days with min | 5 | 14 | 1953 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 36 | 98 | 1964 | 78 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 36 | 63 | 1964 | 41 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 35 | 22 | 2006 | 15 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 23 | 4 | 1974 | 3 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 2 | 1 | 1974 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1953.
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).