San Gabriel Dam Fc425B-E Threshold Days by Year (USC00047779)
6 fixed thresholds counted per year at San Gabriel Dam Fc425B-E (USC00047779): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for San Gabriel Dam Fc425B-E Thresholds
- San Gabriel Dam Fc425B-E: days with 10 mm (0.39 in) or more of precipitation in 66 years, most in 1983 with 33.
- San Gabriel Dam Fc425B-E: days with 25 mm (0.98 in) or more of precipitation in 66 years, most in 1983 with 21.
- San Gabriel Dam Fc425B-E: days with 50 mm (1.97 in) or more of precipitation in 61 years, most in 1969 with 10.
- San Gabriel Dam Fc425B-E: days with 100 mm (3.94 in) or more of precipitation in 30 years, most in 1969 with 4.
- 6 fixed thresholds have at least one qualifying day at San Gabriel Dam Fc425B-E.
Days with 10 mm (0.39 in) or more of precipitation
66 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1949 | 13 | 13 |
| 1950 | 11 | 14.6 |
| 1951 | 17 | 14.6 |
| 1952 | 27 | 14.6 |
| 1953 | 5 | 14.6 |
| 1954 | 14 | 14.6 |
| 1955 | 14 | 14.6 |
| 1956 | 11 | 14.6 |
| 1957 | 23 | 14.6 |
| 1958 | 16 | 14.6 |
| 1959 | 8 | 14.6 |
| 1960 | 16 | 15.8 |
| 1961 | 8 | 15.8 |
| 1962 | 13 | 15.8 |
| 1963 | 16 | 15.8 |
| 1964 | 11 | 15.8 |
| 1965 | 27 | 15.8 |
| 1966 | 9 | 15.8 |
| 1967 | 25 | 15.8 |
| 1968 | 10 | 15.8 |
| 1969 | 23 | 15.8 |
| 1970 | 17 | 16.1 |
| 1971 | 8 | 16.1 |
| 1972 | 7 | 16.1 |
| 1973 | 19 | 16.1 |
| 1974 | 16 | 16.1 |
| 1975 | 15 | 16.1 |
| 1976 | 13 | 16.1 |
| 1977 | 18 | 16.1 |
| 1978 | 31 | 16.1 |
| 1979 | 17 | 16.1 |
| 1981 | 13 | 17.4 |
| 1983 | 33 | 17.4 |
| 1984 | 14 | 17.4 |
| 1985 | 14 | 17.4 |
| 1986 | 19 | 17.4 |
| 1987 | 19 | 17.4 |
| 1988 | 18 | 17.4 |
| 1989 | 9 | 17.4 |
| 1990 | 10 | 20.2 |
| 1991 | 17 | 20.2 |
| 1992 | 26 | 20.2 |
| 1993 | 26 | 20.2 |
| 1994 | 17 | 20.2 |
| 1995 | 25 | 20.2 |
| 1996 | 21 | 20.2 |
| 1997 | 17 | 20.2 |
| 1998 | 31 | 20.2 |
| 1999 | 12 | 20.2 |
| 2004 | 17 | 18 |
| 2008 | 19 | 18 |
| 2010 | 20 | 16.3 |
| 2013 | 10 | 16.3 |
| 2014 | 14 | 16.3 |
| 2015 | 11 | 16.3 |
| 2016 | 13 | 16.3 |
| 2017 | 14 | 16.3 |
| 2018 | 16 | 16.3 |
| 2019 | 32 | 16.3 |
| 2020 | 11 | 15.4 |
| 2021 | 14 | 15.4 |
| 2022 | 10 | 15.4 |
| 2023 | 25 | 15.4 |
| 2024 | 20 | 15.4 |
| 2025 | 18 | 15.4 |
| 2026 | 10 | 15.4 |
| Year | First date | Last date |
|---|---|---|
| 1949 | 1949-01-20 | 1949-12-19 |
| 1950 | 1950-01-08 | 1950-11-13 |
| 1951 | 1951-01-11 | 1951-12-30 |
| 1952 | 1952-01-07 | 1952-12-30 |
| 1953 | 1953-02-23 | 1953-12-04 |
| 1954 | 1954-01-12 | 1954-12-10 |
| 1955 | 1955-01-01 | 1955-11-21 |
| 1956 | 1956-01-25 | 1956-12-06 |
| 1957 | 1957-01-05 | 1957-12-17 |
| 1958 | 1958-01-26 | 1958-10-25 |
| 1959 | 1959-01-06 | 1959-12-24 |
| 1960 | 1960-01-10 | 1960-11-26 |
| 1961 | 1961-01-26 | 1961-12-03 |
| 1962 | 1962-01-20 | 1962-05-16 |
| 1963 | 1963-01-10 | 1963-11-20 |
| 1964 | 1964-01-21 | 1964-12-27 |
| 1965 | 1965-01-07 | 1965-12-29 |
| 1966 | 1966-01-30 | 1966-12-07 |
| 1967 | 1967-01-22 | 1967-12-19 |
| 1968 | 1968-01-27 | 1968-12-26 |
| 1969 | 1969-01-13 | 1969-11-07 |
| 1970 | 1970-01-10 | 1970-12-21 |
| 1971 | 1971-01-12 | 1971-12-27 |
| 1972 | 1972-08-13 | 1972-12-07 |
| 1973 | 1973-01-17 | 1973-12-02 |
| 1974 | 1974-01-01 | 1974-12-29 |
| 1975 | 1975-02-03 | 1975-12-13 |
| 1976 | 1976-02-05 | 1976-12-31 |
| 1977 | 1977-01-03 | 1977-12-29 |
| 1978 | 1978-01-04 | 1978-12-19 |
| 1979 | 1979-01-05 | 1979-12-25 |
| 1981 | 1981-01-28 | 1981-12-30 |
| 1983 | 1983-01-19 | 1983-12-26 |
| 1984 | 1984-03-14 | 1984-12-27 |
| 1985 | 1985-01-08 | 1985-12-03 |
| 1986 | 1986-01-30 | 1986-11-18 |
| 1987 | 1987-01-05 | 1987-12-30 |
| 1988 | 1988-01-17 | 1988-12-25 |
| 1989 | 1989-01-06 | 1989-11-26 |
| 1990 | 1990-01-02 | 1990-11-26 |
| 1991 | 1991-01-04 | 1991-12-30 |
| 1992 | 1992-01-04 | 1992-12-29 |
| 1993 | 1993-01-02 | 1993-12-15 |
| 1994 | 1994-01-25 | 1994-12-25 |
| 1995 | 1995-01-03 | 1995-12-24 |
| 1996 | 1996-01-22 | 1996-12-27 |
| 1997 | 1997-01-02 | 1997-12-21 |
| 1998 | 1998-01-04 | 1998-11-28 |
| 1999 | 1999-01-25 | 1999-11-08 |
| 2004 | 2004-01-02 | 2004-12-31 |
| 2008 | 2008-01-04 | 2008-12-26 |
| 2010 | 2010-01-18 | 2010-11-21 |
| 2013 | 2013-01-24 | 2013-12-20 |
| 2014 | 2014-02-27 | 2014-12-17 |
| 2015 | 2015-01-11 | 2015-12-14 |
| 2016 | 2016-01-06 | 2016-12-24 |
| 2017 | 2017-01-01 | 2017-05-07 |
| 2018 | 2018-01-09 | 2018-12-07 |
| 2019 | 2019-01-06 | 2019-12-26 |
| 2020 | 2020-03-13 | 2020-12-29 |
| 2021 | 2021-01-25 | 2021-12-31 |
| 2022 | 2022-03-29 | 2022-12-12 |
| 2023 | 2023-01-01 | 2023-12-21 |
| 2024 | 2024-01-03 | 2024-05-05 |
| 2025 | 2025-01-27 | 2025-12-27 |
| 2026 | 2026-01-01 | 2026-04-13 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 10 mm (0.39 in): Days with 10 mm or more rain | 66 | 33 | 1983 | 10 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 66 | 21 | 1983 | 6 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 61 | 10 | 1969 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 30 | 4 | 1969 | 1 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 2 | 1 | 1956 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 1 | 1 | 1949 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.
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 (2026-10-12).