Vallecillo (Smn) Threshold Days by Year (MXN00019077)
15 fixed thresholds counted per year at Vallecillo (Smn) (MXN00019077): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Vallecillo (Smn) Thresholds
- Vallecillo (Smn): days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1944 with 21.
- Vallecillo (Smn): days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1967 with 13.
- Vallecillo (Smn): days with a maximum temperature at or above 30 C (86 F) in 27 years, most in 1962 with 251.
- Vallecillo (Smn): days with a maximum temperature at or above 35 C (95 F) in 27 years, most in 1974 with 162.
- 15 fixed thresholds have at least one qualifying day at Vallecillo (Smn).
Days at or above 30 C (86 F)
27 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1942 | 127 | 155 |
| 1943 | 159 | 155 |
| 1944 | 179 | 155 |
| 1959 | 201 | 201 |
| 1960 | 217 | 212.6 |
| 1961 | 223 | 212.6 |
| 1962 | 251 | 212.6 |
| 1963 | 237 | 212.6 |
| 1964 | 186 | 212.6 |
| 1965 | 215 | 212.6 |
| 1966 | 200 | 212.6 |
| 1967 | 204 | 212.6 |
| 1968 | 188 | 212.6 |
| 1969 | 205 | 212.6 |
| 1970 | 218 | 224.4 |
| 1971 | 230 | 224.4 |
| 1972 | 230 | 224.4 |
| 1973 | 248 | 224.4 |
| 1974 | 221 | 224.4 |
| 1975 | 235 | 224.4 |
| 1976 | 200 | 224.4 |
| 1977 | 211 | 224.4 |
| 1979 | 227 | 224.4 |
| 1980 | 237 | 198.3 |
| 1981 | 156 | 198.3 |
| 1986 | 206 | 198.3 |
| 1987 | 194 | 198.3 |
| Year | First date | Last date |
|---|---|---|
| 1942 | 1942-02-04 | 1942-10-13 |
| 1943 | 1943-04-13 | 1943-11-06 |
| 1944 | 1944-01-25 | 1944-12-25 |
| 1959 | 1959-02-15 | 1959-12-27 |
| 1960 | 1960-02-07 | 1960-12-28 |
| 1961 | 1961-02-11 | 1961-10-31 |
| 1962 | 1962-01-04 | 1962-11-24 |
| 1963 | 1963-01-08 | 1963-11-19 |
| 1964 | 1964-01-19 | 1964-12-29 |
| 1965 | 1965-01-08 | 1965-11-27 |
| 1966 | 1966-03-03 | 1966-12-08 |
| 1967 | 1967-01-05 | 1967-12-10 |
| 1968 | 1968-01-25 | 1968-12-27 |
| 1969 | 1969-01-07 | 1969-11-17 |
| 1970 | 1970-01-28 | 1970-12-22 |
| 1971 | 1971-01-02 | 1971-12-14 |
| 1972 | 1972-01-12 | 1972-12-22 |
| 1973 | 1973-01-19 | 1973-12-31 |
| 1974 | 1974-01-02 | 1974-12-23 |
| 1975 | 1975-01-09 | 1975-11-29 |
| 1976 | 1976-01-02 | 1976-10-24 |
| 1977 | 1977-01-28 | 1977-12-07 |
| 1979 | 1979-01-12 | 1979-11-28 |
| 1980 | 1980-01-02 | 1980-11-13 |
| 1981 | 1981-02-09 | 1981-12-29 |
| 1986 | 1986-01-29 | 1986-11-19 |
| 1987 | 1987-01-27 | 1987-12-11 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 27 | 251 | 1962 | 194 |
| 35 C (95 F): Days | 27 | 162 | 1974 | 89 |
| 40 C (104 F): Days | 26 | 58 | 1943 | 9 |
| 45 C (113 F): Days | 3 | 1 | 1943 | 1 |
| 90 F (32.2 C): Days | 27 | 203 | 1973 | 120 |
| 100 F (37.8 C): Days | 27 | 103 | 1943 | 38 |
| 110 F (43.3 C): Days | 9 | 15 | 1943 | 1 |
| 0 C (32 F): Frost days (min | 26 | 25 | 1963 | 2 |
| -10 C (14 F): Days with min | 1 | 1 | 1962 | 1 |
| 20 C (68 F): Tropical nights (min | 27 | 175 | 1963 | 138 |
| 25 C (77 F): Days with min | 25 | 33 | 1944 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 40 | 21 | 1944 | 10 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 30 | 13 | 1967 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 16 | 6 | 1971 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 4 | 1 | 1965 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1942.
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).