Copainala Threshold Days by Year (MXN00007027)
14 fixed thresholds counted per year at Copainala (MXN00007027): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Copainala Thresholds
- Copainala: days with 10 mm (0.39 in) or more of precipitation in 29 years, most in 1950 with 55.
- Copainala: days with a maximum temperature at or above 30 C (86 F) in 28 years, most in 1957 with 365.
- Copainala: days with a maximum temperature at or above 35 C (95 F) in 28 years, most in 1940 with 313.
- Copainala: days with a maximum temperature at or above 90 F (32.2 C) in 28 years, most in 1940 with 342.
- 14 fixed thresholds have at least one qualifying day at Copainala.
Days at or above 30 C (86 F)
28 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1928 | 94 | 96.5 |
| 1929 | 99 | 96.5 |
| 1930 | 109 | 200.1 |
| 1931 | 74 | 200.1 |
| 1933 | 74 | 200.1 |
| 1934 | 255 | 200.1 |
| 1935 | 305 | 200.1 |
| 1936 | 258 | 200.1 |
| 1937 | 145 | 200.1 |
| 1938 | 260 | 200.1 |
| 1939 | 321 | 200.1 |
| 1940 | 362 | 294 |
| 1941 | 280 | 294 |
| 1942 | 232 | 294 |
| 1943 | 262 | 294 |
| 1945 | 334 | 294 |
| 1955 | 325 | 355 |
| 1956 | 355 | 355 |
| 1957 | 365 | 355 |
| 1958 | 365 | 355 |
| 1959 | 365 | 355 |
| 1960 | 343 | 349.1 |
| 1961 | 294 | 349.1 |
| 1962 | 359 | 349.1 |
| 1963 | 356 | 349.1 |
| 1964 | 365 | 349.1 |
| 1966 | 362 | 349.1 |
| 1967 | 365 | 349.1 |
| Year | First date | Last date |
|---|---|---|
| 1928 | 1928-01-20 | 1928-12-18 |
| 1929 | 1929-01-06 | 1929-12-08 |
| 1930 | 1930-01-14 | 1930-12-28 |
| 1931 | 1931-01-04 | 1931-12-31 |
| 1933 | 1933-01-26 | 1933-09-07 |
| 1934 | 1934-04-05 | 1934-12-31 |
| 1935 | 1935-01-01 | 1935-12-01 |
| 1936 | 1936-03-08 | 1936-12-31 |
| 1937 | 1937-01-01 | 1937-08-01 |
| 1938 | 1938-01-21 | 1938-12-28 |
| 1939 | 1939-01-04 | 1939-12-31 |
| 1940 | 1940-01-01 | 1940-12-30 |
| 1941 | 1941-01-10 | 1941-12-29 |
| 1942 | 1942-01-01 | 1942-12-29 |
| 1943 | 1943-01-01 | 1943-12-31 |
| 1945 | 1945-01-01 | 1945-11-30 |
| 1955 | 1955-01-02 | 1955-12-30 |
| 1956 | 1956-01-01 | 1956-12-31 |
| 1957 | 1957-01-01 | 1957-12-31 |
| 1958 | 1958-01-01 | 1958-12-31 |
| 1959 | 1959-01-01 | 1959-12-31 |
| 1960 | 1960-01-01 | 1960-12-26 |
| 1961 | 1961-01-13 | 1961-12-31 |
| 1962 | 1962-01-02 | 1962-12-31 |
| 1963 | 1963-01-01 | 1963-12-24 |
| 1964 | 1964-01-01 | 1964-12-31 |
| 1966 | 1966-01-01 | 1966-12-28 |
| 1967 | 1967-01-01 | 1967-12-31 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 28 | 365 | 1957 | 365 |
| 35 C (95 F): Days | 28 | 313 | 1940 | 58 |
| 40 C (104 F): Days | 11 | 83 | 1940 | 26 |
| 45 C (113 F): Days | 1 | 1 | 1945 | 1 |
| 90 F (32.2 C): Days | 28 | 342 | 1940 | 284 |
| 100 F (37.8 C): Days | 19 | 224 | 1940 | 1 |
| 110 F (43.3 C): Days | 1 | 3 | 1945 | 3 |
| 0 C (32 F): Frost days (min | 1 | 1 | 1938 | 1 |
| 20 C (68 F): Tropical nights (min | 18 | 365 | 1957 | 365 |
| 25 C (77 F): Days with min | 11 | 362 | 1967 | 362 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 29 | 55 | 1950 | 24 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 27 | 44 | 1950 | 6 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 20 | 28 | 1951 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 4 | 7 | 1951 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1928.
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).