San Dieguito Threshold Days by Year (MXN00024064)
15 fixed thresholds counted per year at San Dieguito (MXN00024064): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for San Dieguito Thresholds
- San Dieguito: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 1964 with 53.
- San Dieguito: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 2008 with 32.
- San Dieguito: days with a maximum temperature at or above 30 C (86 F) in 46 years, most in 1962 with 229.
- San Dieguito: days with a maximum temperature at or above 35 C (95 F) in 46 years, most in 1980 with 108.
- 15 fixed thresholds have at least one qualifying day at San Dieguito.
Days at or above 30 C (86 F)
46 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1961 | 178 | 169.6 |
| 1962 | 229 | 169.6 |
| 1964 | 179 | 169.6 |
| 1965 | 153 | 169.6 |
| 1966 | 166 | 169.6 |
| 1967 | 149 | 169.6 |
| 1968 | 133 | 169.6 |
| 1970 | 170 | 180.5 |
| 1971 | 199 | 180.5 |
| 1972 | 188 | 180.5 |
| 1973 | 206 | 180.5 |
| 1974 | 155 | 180.5 |
| 1975 | 184 | 180.5 |
| 1976 | 142 | 180.5 |
| 1977 | 194 | 180.5 |
| 1978 | 176 | 180.5 |
| 1979 | 191 | 180.5 |
| 1980 | 209 | 191.1 |
| 1981 | 183 | 191.1 |
| 1982 | 203 | 191.1 |
| 1983 | 195 | 191.1 |
| 1984 | 180 | 191.1 |
| 1985 | 180 | 191.1 |
| 1986 | 194 | 191.1 |
| 1987 | 161 | 191.1 |
| 1988 | 198 | 191.1 |
| 1989 | 208 | 191.1 |
| 1990 | 172 | 179.1 |
| 1991 | 162 | 179.1 |
| 1992 | 122 | 179.1 |
| 1993 | 174 | 179.1 |
| 1994 | 195 | 179.1 |
| 1995 | 202 | 179.1 |
| 1998 | 210 | 179.1 |
| 1999 | 196 | 179.1 |
| 2000 | 211 | 194.5 |
| 2001 | 175 | 194.5 |
| 2002 | 208 | 194.5 |
| 2003 | 192 | 194.5 |
| 2004 | 182 | 194.5 |
| 2005 | 203 | 194.5 |
| 2006 | 225 | 194.5 |
| 2007 | 186 | 194.5 |
| 2008 | 168 | 194.5 |
| 2009 | 195 | 194.5 |
| 2010 | 165 | 165 |
| Year | First date | Last date |
|---|---|---|
| 1961 | 1961-02-18 | 1961-12-30 |
| 1962 | 1962-02-06 | 1962-12-24 |
| 1964 | 1964-02-26 | 1964-12-25 |
| 1965 | 1965-01-30 | 1965-10-17 |
| 1966 | 1966-02-27 | 1966-12-09 |
| 1967 | 1967-02-10 | 1967-12-18 |
| 1968 | 1968-02-21 | 1968-12-27 |
| 1970 | 1970-01-11 | 1970-11-19 |
| 1971 | 1971-01-03 | 1971-12-09 |
| 1972 | 1972-01-13 | 1972-12-30 |
| 1973 | 1973-01-27 | 1973-12-31 |
| 1974 | 1974-02-06 | 1974-10-30 |
| 1975 | 1975-01-31 | 1975-11-30 |
| 1976 | 1976-02-17 | 1976-11-27 |
| 1977 | 1977-01-27 | 1977-12-05 |
| 1978 | 1978-02-12 | 1978-12-20 |
| 1979 | 1979-01-13 | 1979-11-20 |
| 1980 | 1980-01-11 | 1980-11-14 |
| 1981 | 1981-02-10 | 1981-12-28 |
| 1982 | 1982-01-02 | 1982-12-24 |
| 1983 | 1983-02-09 | 1983-12-28 |
| 1984 | 1984-02-12 | 1984-11-09 |
| 1985 | 1985-01-30 | 1985-11-15 |
| 1986 | 1986-02-04 | 1986-11-18 |
| 1987 | 1987-02-04 | 1987-12-14 |
| 1988 | 1988-01-17 | 1988-12-14 |
| 1989 | 1989-02-02 | 1989-11-26 |
| 1990 | 1990-02-02 | 1990-11-27 |
| 1991 | 1991-01-31 | 1991-11-20 |
| 1992 | 1992-02-24 | 1992-11-21 |
| 1993 | 1993-01-09 | 1993-12-12 |
| 1994 | 1994-03-01 | 1994-12-14 |
| 1995 | 1995-01-06 | 1995-12-19 |
| 1998 | 1998-01-06 | 1998-11-21 |
| 1999 | 1999-01-17 | 1999-10-17 |
| 2000 | 2000-01-03 | 2000-12-26 |
| 2001 | 2001-02-24 | 2001-10-25 |
| 2002 | 2002-01-24 | 2002-12-18 |
| 2003 | 2003-02-06 | 2003-12-09 |
| 2004 | 2004-02-05 | 2004-11-29 |
| 2005 | 2005-02-09 | 2005-12-30 |
| 2006 | 2006-01-01 | 2006-11-30 |
| 2007 | 2007-02-25 | 2007-12-22 |
| 2008 | 2008-01-10 | 2008-12-27 |
| 2009 | 2009-02-18 | 2009-12-09 |
| 2010 | 2010-01-21 | 2010-11-24 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 46 | 229 | 1962 | 165 |
| 35 C (95 F): Days | 46 | 108 | 1980 | 29 |
| 40 C (104 F): Days | 38 | 16 | 1984 | 1 |
| 45 C (113 F): Days | 12 | 6 | 1984 | 1 |
| 90 F (32.2 C): Days | 46 | 162 | 1980 | 85 |
| 100 F (37.8 C): Days | 45 | 32 | 1980 | 3 |
| 110 F (43.3 C): Days | 18 | 7 | 1984 | 1 |
| 0 C (32 F): Frost days (min | 5 | 3 | 1989 | 2 |
| 20 C (68 F): Tropical nights (min | 46 | 198 | 1972 | 142 |
| 25 C (77 F): Days with min | 23 | 7 | 1964 | 3 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 48 | 53 | 1964 | 49 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 48 | 32 | 2008 | 17 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 46 | 15 | 2008 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 30 | 5 | 1962 | 5 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 3 | 1 | 1967 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1961.
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).