San Juan Atepec Threshold Days by Year (MXN00020004)
10 fixed thresholds counted per year at San Juan Atepec (MXN00020004): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for San Juan Atepec Thresholds
- San Juan Atepec: days with a maximum temperature at or above 30 C (86 F) in 42 years, most in 1983 with 134.
- San Juan Atepec: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1958 with 52.
- San Juan Atepec: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 2010 with 20.
- San Juan Atepec: days with a maximum temperature at or above 90 F (32.2 C) in 35 years, most in 1991 with 78.
- 10 fixed thresholds have at least one qualifying day at San Juan Atepec.
Days at or above 30 C (86 F)
42 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1956 | 31 | 32.8 |
| 1957 | 43 | 32.8 |
| 1958 | 43 | 32.8 |
| 1959 | 14 | 32.8 |
| 1960 | 2 | 22.7 |
| 1961 | 34 | 22.7 |
| 1962 | 43 | 22.7 |
| 1963 | 26 | 22.7 |
| 1964 | 45 | 22.7 |
| 1965 | 16 | 22.7 |
| 1966 | 8 | 22.7 |
| 1967 | 7 | 22.7 |
| 1968 | 7 | 22.7 |
| 1969 | 39 | 22.7 |
| 1970 | 34 | 61.6 |
| 1971 | 22 | 61.6 |
| 1972 | 20 | 61.6 |
| 1973 | 52 | 61.6 |
| 1974 | 37 | 61.6 |
| 1975 | 66 | 61.6 |
| 1976 | 85 | 61.6 |
| 1977 | 99 | 61.6 |
| 1978 | 100 | 61.6 |
| 1979 | 101 | 61.6 |
| 1980 | 115 | 108.8 |
| 1981 | 85 | 108.8 |
| 1982 | 121 | 108.8 |
| 1983 | 134 | 108.8 |
| 1984 | 89 | 108.8 |
| 1991 | 120 | 100.7 |
| 1992 | 84 | 100.7 |
| 1993 | 98 | 100.7 |
| 2001 | 70 | 97.7 |
| 2002 | 99 | 97.7 |
| 2003 | 105 | 97.7 |
| 2004 | 109 | 97.7 |
| 2005 | 130 | 97.7 |
| 2006 | 83 | 97.7 |
| 2007 | 78 | 97.7 |
| 2008 | 88 | 97.7 |
| 2009 | 117 | 97.7 |
| 2010 | 110 | 110 |
| Year | First date | Last date |
|---|---|---|
| 1956 | 1956-02-18 | 1956-05-06 |
| 1957 | 1957-02-19 | 1957-06-14 |
| 1958 | 1958-03-04 | 1958-05-12 |
| 1959 | 1959-03-11 | 1959-05-21 |
| 1960 | 1960-05-21 | 1960-10-12 |
| 1961 | 1961-02-20 | 1961-06-09 |
| 1962 | 1962-02-15 | 1962-06-04 |
| 1963 | 1963-03-04 | 1963-06-14 |
| 1964 | 1964-01-25 | 1964-08-21 |
| 1965 | 1965-03-12 | 1965-06-14 |
| 1966 | 1966-02-27 | 1966-05-18 |
| 1967 | 1967-04-23 | 1967-06-30 |
| 1968 | 1968-03-10 | 1968-05-10 |
| 1969 | 1969-02-27 | 1969-06-12 |
| 1970 | 1970-03-17 | 1970-05-25 |
| 1971 | 1971-03-11 | 1971-05-24 |
| 1972 | 1972-03-26 | 1972-05-23 |
| 1973 | 1973-03-03 | 1973-07-14 |
| 1974 | 1974-02-21 | 1974-06-06 |
| 1975 | 1975-03-15 | 1975-06-15 |
| 1976 | 1976-01-26 | 1976-11-29 |
| 1977 | 1977-01-01 | 1977-12-31 |
| 1978 | 1978-01-01 | 1978-12-08 |
| 1979 | 1979-01-20 | 1979-12-28 |
| 1980 | 1980-01-09 | 1980-10-28 |
| 1981 | 1981-01-27 | 1981-12-31 |
| 1982 | 1982-01-01 | 1982-12-28 |
| 1983 | 1983-01-08 | 1983-12-05 |
| 1984 | 1984-01-17 | 1984-11-18 |
| 1991 | 1991-01-06 | 1991-08-15 |
| 1992 | 1992-02-11 | 1992-08-30 |
| 1993 | 1993-01-17 | 1993-11-14 |
| 2001 | 2001-01-16 | 2001-06-03 |
| 2002 | 2002-01-04 | 2002-10-26 |
| 2003 | 2003-01-22 | 2003-12-28 |
| 2004 | 2004-01-04 | 2004-12-25 |
| 2005 | 2005-01-01 | 2005-12-30 |
| 2006 | 2006-01-01 | 2006-12-31 |
| 2007 | 2007-01-04 | 2007-12-22 |
| 2008 | 2008-01-17 | 2008-11-29 |
| 2009 | 2009-01-04 | 2009-12-31 |
| 2010 | 2010-01-19 | 2010-12-30 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 42 | 134 | 1983 | 110 |
| 35 C (95 F): Days | 27 | 48 | 1991 | 36 |
| 90 F (32.2 C): Days | 35 | 78 | 1991 | 66 |
| 100 F (37.8 C): Days | 10 | 8 | 1991 | 5 |
| 0 C (32 F): Frost days (min | 4 | 2 | 1956 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 41 | 52 | 1958 | 44 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 41 | 20 | 2010 | 20 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 25 | 8 | 2010 | 8 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 3 | 3 | 2010 | 3 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 1 | 1 | 2005 | 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).