Grays Rvr Hatchery Threshold Days by Year
13 fixed thresholds counted per year at Grays Rvr Hatchery (USC00453333): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Grays Rvr Hatchery Thresholds
- Grays Rvr Hatchery: days with 10 mm (0.39 in) or more of precipitation in 49 years, most in 1983 with 103.
- Grays Rvr Hatchery: days with 25 mm (0.98 in) or more of precipitation in 49 years, most in 1974 with 49.
- Grays Rvr Hatchery: days with 50 mm (1.97 in) or more of precipitation in 49 years, most in 1999 with 17.
- Grays Rvr Hatchery: days with a maximum temperature at or above 30 C (86 F) in 45 years, most in 2008 with 23.
- 13 fixed thresholds have at least one qualifying day at Grays Rvr Hatchery.
Days at or above 30 C (86 F)
45 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1963 | 10 | 8.9 |
| 1964 | 5 | 8.9 |
| 1965 | 9 | 8.9 |
| 1966 | 6 | 8.9 |
| 1967 | 13 | 8.9 |
| 1968 | 13 | 8.9 |
| 1969 | 6 | 8.9 |
| 1970 | 13 | 9.4 |
| 1971 | 5 | 9.4 |
| 1972 | 12 | 9.4 |
| 1973 | 9 | 9.4 |
| 1974 | 16 | 9.4 |
| 1975 | 10 | 9.4 |
| 1976 | 2 | 9.4 |
| 1977 | 10 | 9.4 |
| 1978 | 11 | 9.4 |
| 1979 | 6 | 9.4 |
| 1980 | 5 | 10.2 |
| 1981 | 11 | 10.2 |
| 1982 | 5 | 10.2 |
| 1983 | 7 | 10.2 |
| 1984 | 7 | 10.2 |
| 1985 | 11 | 10.2 |
| 1986 | 13 | 10.2 |
| 1987 | 17 | 10.2 |
| 1988 | 17 | 10.2 |
| 1989 | 9 | 10.2 |
| 1990 | 11 | 9.4 |
| 1991 | 10 | 9.4 |
| 1992 | 13 | 9.4 |
| 1993 | 7 | 9.4 |
| 1994 | 4 | 9.4 |
| 1995 | 8 | 9.4 |
| 1996 | 18 | 9.4 |
| 1997 | 9 | 9.4 |
| 1998 | 8 | 9.4 |
| 1999 | 6 | 9.4 |
| 2000 | 6 | 14.3 |
| 2002 | 12 | 14.3 |
| 2003 | 21 | 14.3 |
| 2004 | 8 | 14.3 |
| 2005 | 11 | 14.3 |
| 2006 | 21 | 14.3 |
| 2007 | 12 | 14.3 |
| 2008 | 23 | 14.3 |
| Year | First date | Last date |
|---|---|---|
| 1963 | 1963-05-19 | 1963-09-04 |
| 1964 | 1964-07-11 | 1964-08-25 |
| 1965 | 1965-07-01 | 1965-09-25 |
| 1966 | 1966-06-15 | 1966-09-22 |
| 1967 | 1967-07-02 | 1967-09-27 |
| 1968 | 1968-06-24 | 1968-09-05 |
| 1969 | 1969-05-07 | 1969-09-08 |
| 1970 | 1970-06-01 | 1970-08-30 |
| 1971 | 1971-05-11 | 1971-08-10 |
| 1972 | 1972-05-28 | 1972-09-03 |
| 1973 | 1973-05-13 | 1973-09-11 |
| 1974 | 1974-06-30 | 1974-09-25 |
| 1975 | 1975-05-14 | 1975-09-22 |
| 1976 | 1976-07-16 | 1976-08-30 |
| 1977 | 1977-06-06 | 1977-08-17 |
| 1978 | 1978-06-02 | 1978-08-09 |
| 1979 | 1979-05-26 | 1979-09-14 |
| 1980 | 1980-07-22 | 1980-10-03 |
| 1981 | 1981-07-03 | 1981-09-16 |
| 1982 | 1982-06-19 | 1982-09-03 |
| 1983 | 1983-05-23 | 1983-08-14 |
| 1984 | 1984-05-29 | 1984-08-08 |
| 1985 | 1985-05-16 | 1985-08-23 |
| 1986 | 1986-05-30 | 1986-09-05 |
| 1987 | 1987-04-26 | 1987-10-06 |
| 1988 | 1988-05-11 | 1988-10-01 |
| 1989 | 1989-06-04 | 1989-09-29 |
| 1990 | 1990-05-05 | 1990-09-22 |
| 1991 | 1991-07-03 | 1991-10-15 |
| 1992 | 1992-05-04 | 1992-08-27 |
| 1993 | 1993-05-18 | 1993-09-10 |
| 1994 | 1994-07-20 | 1994-09-23 |
| 1995 | 1995-06-27 | 1995-09-14 |
| 1996 | 1996-06-03 | 1996-08-30 |
| 1997 | 1997-05-12 | 1997-09-24 |
| 1998 | 1998-04-30 | 1998-09-01 |
| 1999 | 1999-05-23 | 1999-09-19 |
| 2000 | 2000-06-25 | 2000-08-22 |
| 2002 | 2002-06-12 | 2002-09-23 |
| 2003 | 2003-05-27 | 2003-09-27 |
| 2004 | 2004-04-26 | 2004-08-09 |
| 2005 | 2005-05-26 | 2005-08-25 |
| 2006 | 2006-05-15 | 2006-09-28 |
| 2007 | 2007-05-29 | 2007-09-10 |
| 2008 | 2008-05-16 | 2008-09-16 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 45 | 23 | 2008 | 23 |
| 35 C (95 F): Days | 29 | 6 | 1981 | 4 |
| 40 C (104 F): Days | 2 | 3 | 1981 | 1 |
| 90 F (32.2 C): Days | 42 | 12 | 2006 | 12 |
| 100 F (37.8 C): Days | 8 | 3 | 1981 | 2 |
| 0 C (32 F): Ice days (max | 18 | 10 | 1972 | 2 |
| 0 C (32 F): Frost days (min | 44 | 124 | 1985 | 99 |
| -10 C (14 F): Days with min | 16 | 7 | 1972 | 3 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 49 | 103 | 1983 | 64 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 49 | 49 | 1974 | 20 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 49 | 17 | 1999 | 6 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 29 | 4 | 1972 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 6 | 6 | 1971 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.
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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).