Otatitlan Threshold Days by Year
14 fixed thresholds counted per year at Otatitlan (MXN00030121): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Otatitlan Thresholds
- Otatitlan: days with a maximum temperature at or above 30 C (86 F) in 54 years, most in 2000 with 314.
- Otatitlan: days with a maximum temperature at or above 35 C (95 F) in 54 years, most in 1998 with 173.
- Otatitlan: days with a maximum temperature at or above 90 F (32.2 C) in 54 years, most in 1998 with 249.
- Otatitlan: nights with a minimum temperature at or above 20 C (68 F) in 54 years, most in 1972 with 299.
- 14 fixed thresholds have at least one qualifying day at Otatitlan.
Days at or above 30 C (86 F)
54 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1935 | 168 | 127.5 |
| 1936 | 82 | 127.5 |
| 1938 | 136 | 127.5 |
| 1939 | 124 | 127.5 |
| 1940 | 137 | 194.3 |
| 1941 | 116 | 194.3 |
| 1942 | 130 | 194.3 |
| 1943 | 175 | 194.3 |
| 1946 | 225 | 194.3 |
| 1947 | 240 | 194.3 |
| 1948 | 263 | 194.3 |
| 1949 | 268 | 194.3 |
| 1950 | 215 | 229.9 |
| 1951 | 237 | 229.9 |
| 1952 | 200 | 229.9 |
| 1953 | 236 | 229.9 |
| 1954 | 219 | 229.9 |
| 1955 | 232 | 229.9 |
| 1956 | 264 | 229.9 |
| 1957 | 231 | 229.9 |
| 1958 | 225 | 229.9 |
| 1959 | 240 | 229.9 |
| 1960 | 247 | 234.8 |
| 1961 | 236 | 234.8 |
| 1962 | 265 | 234.8 |
| 1963 | 262 | 234.8 |
| 1964 | 252 | 234.8 |
| 1965 | 224 | 234.8 |
| 1966 | 217 | 234.8 |
| 1967 | 236 | 234.8 |
| 1968 | 203 | 234.8 |
| 1969 | 206 | 234.8 |
| 1970 | 212 | 231 |
| 1971 | 245 | 231 |
| 1972 | 256 | 231 |
| 1973 | 248 | 231 |
| 1974 | 230 | 231 |
| 1975 | 246 | 231 |
| 1976 | 215 | 231 |
| 1977 | 230 | 231 |
| 1978 | 206 | 231 |
| 1979 | 222 | 231 |
| 1980 | 237 | 240.1 |
| 1981 | 206 | 240.1 |
| 1982 | 242 | 240.1 |
| 1983 | 231 | 240.1 |
| 1985 | 213 | 240.1 |
| 1987 | 273 | 240.1 |
| 1988 | 253 | 240.1 |
| 1989 | 266 | 240.1 |
| 1998 | 302 | 302 |
| 2000 | 314 | 297 |
| 2001 | 305 | 297 |
| 2002 | 272 | 297 |
| Year | First date | Last date |
|---|---|---|
| 1935 | 1935-02-25 | 1935-10-16 |
| 1936 | 1936-02-04 | 1936-09-29 |
| 1938 | 1938-03-04 | 1938-11-18 |
| 1939 | 1939-01-29 | 1939-10-09 |
| 1940 | 1940-03-10 | 1940-11-26 |
| 1941 | 1941-04-01 | 1941-12-25 |
| 1942 | 1942-02-16 | 1942-11-03 |
| 1943 | 1943-01-18 | 1943-12-27 |
| 1946 | 1946-01-05 | 1946-12-28 |
| 1947 | 1947-01-09 | 1947-12-11 |
| 1948 | 1948-01-23 | 1948-12-29 |
| 1949 | 1949-01-02 | 1949-12-15 |
| 1950 | 1950-01-04 | 1950-12-05 |
| 1951 | 1951-01-02 | 1951-12-26 |
| 1952 | 1952-01-02 | 1952-12-30 |
| 1953 | 1953-01-19 | 1953-12-22 |
| 1954 | 1954-01-04 | 1954-12-05 |
| 1955 | 1955-01-01 | 1955-11-28 |
| 1956 | 1956-01-18 | 1956-12-23 |
| 1957 | 1957-01-07 | 1957-12-08 |
| 1958 | 1958-01-06 | 1958-11-27 |
| 1959 | 1959-01-21 | 1959-12-31 |
| 1960 | 1960-01-01 | 1960-12-29 |
| 1961 | 1961-01-24 | 1961-12-18 |
| 1962 | 1962-01-05 | 1962-12-30 |
| 1963 | 1963-01-10 | 1963-12-12 |
| 1964 | 1964-01-19 | 1964-12-30 |
| 1965 | 1965-01-02 | 1965-12-24 |
| 1966 | 1966-01-01 | 1966-12-09 |
| 1967 | 1967-01-07 | 1967-12-20 |
| 1968 | 1968-02-15 | 1968-12-27 |
| 1969 | 1969-01-29 | 1969-12-29 |
| 1970 | 1970-01-18 | 1970-12-20 |
| 1971 | 1971-01-02 | 1971-12-21 |
| 1972 | 1972-01-04 | 1972-12-12 |
| 1973 | 1973-01-03 | 1973-12-31 |
| 1974 | 1974-01-10 | 1974-12-15 |
| 1975 | 1975-01-10 | 1975-11-30 |
| 1976 | 1976-02-06 | 1976-10-30 |
| 1977 | 1977-01-09 | 1977-12-17 |
| 1978 | 1978-02-12 | 1978-12-08 |
| 1979 | 1979-01-20 | 1979-11-22 |
| 1980 | 1980-01-22 | 1980-12-09 |
| 1981 | 1981-02-10 | 1981-12-28 |
| 1982 | 1982-01-13 | 1982-12-03 |
| 1983 | 1983-01-30 | 1983-12-28 |
| 1985 | 1985-01-31 | 1985-11-11 |
| 1987 | 1987-01-01 | 1987-12-30 |
| 1988 | 1988-01-01 | 1988-12-30 |
| 1989 | 1989-01-01 | 1989-12-31 |
| 1998 | 1998-01-04 | 1998-12-31 |
| 2000 | 2000-01-01 | 2000-12-27 |
| 2001 | 2001-01-07 | 2001-12-30 |
| 2002 | 2002-01-05 | 2002-11-26 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 54 | 314 | 2000 | 272 |
| 35 C (95 F): Days | 54 | 173 | 1998 | 165 |
| 40 C (104 F): Days | 38 | 54 | 1998 | 15 |
| 45 C (113 F): Days | 1 | 8 | 1998 | 8 |
| 90 F (32.2 C): Days | 54 | 249 | 1998 | 235 |
| 100 F (37.8 C): Days | 46 | 91 | 1998 | 61 |
| 110 F (43.3 C): Days | 4 | 17 | 1998 | 1 |
| 20 C (68 F): Tropical nights (min | 54 | 299 | 1972 | 258 |
| 25 C (77 F): Days with min | 53 | 59 | 1949 | 43 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 54 | 75 | 1942 | 40 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 54 | 50 | 1942 | 15 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 53 | 24 | 1942 | 5 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 33 | 8 | 1942 | 3 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 3 | 2 | 1942 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1935.
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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).