Prospect Reservoir Threshold Days by Year
13 fixed thresholds counted per year at Prospect Reservoir (ASN00067019): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Prospect Reservoir Thresholds
- Prospect Reservoir: days with 10 mm (0.39 in) or more of precipitation in 139 years, most in 1950 with 54.
- Prospect Reservoir: days with 25 mm (0.98 in) or more of precipitation in 138 years, most in 1950 with 21.
- Prospect Reservoir: days with 50 mm (1.97 in) or more of precipitation in 122 years, most in 1956 with 8.
- Prospect Reservoir: days with a maximum temperature at or above 30 C (86 F) in 53 years, most in 1998 with 67.
- 13 fixed thresholds have at least one qualifying day at Prospect Reservoir.
Days at or above 30 C (86 F)
53 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1965 | 27 | 29.8 |
| 1966 | 19 | 29.8 |
| 1967 | 25 | 29.8 |
| 1968 | 37 | 29.8 |
| 1969 | 41 | 29.8 |
| 1970 | 36 | 38.9 |
| 1971 | 19 | 38.9 |
| 1972 | 24 | 38.9 |
| 1973 | 41 | 38.9 |
| 1974 | 29 | 38.9 |
| 1975 | 41 | 38.9 |
| 1976 | 34 | 38.9 |
| 1977 | 61 | 38.9 |
| 1978 | 45 | 38.9 |
| 1979 | 59 | 38.9 |
| 1980 | 62 | 42.4 |
| 1981 | 34 | 42.4 |
| 1982 | 53 | 42.4 |
| 1983 | 49 | 42.4 |
| 1984 | 33 | 42.4 |
| 1985 | 40 | 42.4 |
| 1986 | 37 | 42.4 |
| 1987 | 43 | 42.4 |
| 1988 | 46 | 42.4 |
| 1989 | 27 | 42.4 |
| 1990 | 42 | 42.8 |
| 1991 | 61 | 42.8 |
| 1992 | 17 | 42.8 |
| 1993 | 43 | 42.8 |
| 1994 | 45 | 42.8 |
| 1995 | 26 | 42.8 |
| 1996 | 30 | 42.8 |
| 1997 | 57 | 42.8 |
| 1998 | 67 | 42.8 |
| 1999 | 40 | 42.8 |
| 2000 | 50 | 55.2 |
| 2001 | 43 | 55.2 |
| 2002 | 51 | 55.2 |
| 2003 | 45 | 55.2 |
| 2004 | 62 | 55.2 |
| 2005 | 65 | 55.2 |
| 2006 | 63 | 55.2 |
| 2007 | 55 | 55.2 |
| 2008 | 52 | 55.2 |
| 2009 | 66 | 55.2 |
| 2010 | 57 | 57.4 |
| 2011 | 49 | 57.4 |
| 2012 | 43 | 57.4 |
| 2013 | 61 | 57.4 |
| 2014 | 64 | 57.4 |
| 2015 | 60 | 57.4 |
| 2016 | 65 | 57.4 |
| 2017 | 60 | 57.4 |
| Year | First date | Last date |
|---|---|---|
| 1965 | 1965-01-02 | 1965-12-31 |
| 1966 | 1966-01-11 | 1966-12-26 |
| 1967 | 1967-01-09 | 1967-12-30 |
| 1968 | 1968-01-01 | 1968-12-19 |
| 1969 | 1969-01-02 | 1969-12-29 |
| 1970 | 1970-01-10 | 1970-12-23 |
| 1971 | 1971-01-08 | 1971-12-30 |
| 1972 | 1972-01-10 | 1972-12-30 |
| 1973 | 1973-01-02 | 1973-12-28 |
| 1974 | 1974-01-04 | 1974-12-30 |
| 1975 | 1975-01-01 | 1975-12-30 |
| 1976 | 1976-01-02 | 1976-12-29 |
| 1977 | 1977-01-01 | 1977-12-31 |
| 1978 | 1978-01-01 | 1978-12-22 |
| 1979 | 1979-01-01 | 1979-12-31 |
| 1980 | 1980-01-11 | 1980-12-28 |
| 1981 | 1981-01-01 | 1981-12-19 |
| 1982 | 1982-01-01 | 1982-12-30 |
| 1983 | 1983-01-05 | 1983-12-25 |
| 1984 | 1984-01-03 | 1984-12-25 |
| 1985 | 1985-01-02 | 1985-12-31 |
| 1986 | 1986-01-02 | 1986-12-31 |
| 1987 | 1987-01-04 | 1987-12-27 |
| 1988 | 1988-01-01 | 1988-12-25 |
| 1989 | 1989-01-09 | 1989-12-31 |
| 1990 | 1990-01-01 | 1990-12-31 |
| 1991 | 1991-01-01 | 1991-12-27 |
| 1992 | 1992-01-13 | 1992-12-24 |
| 1993 | 1993-01-01 | 1993-12-31 |
| 1994 | 1994-01-01 | 1994-12-28 |
| 1995 | 1995-01-01 | 1995-12-18 |
| 1996 | 1996-01-01 | 1996-12-26 |
| 1997 | 1997-01-05 | 1997-12-31 |
| 1998 | 1998-01-01 | 1998-12-29 |
| 1999 | 1999-01-03 | 1999-12-16 |
| 2000 | 2000-01-04 | 2000-12-27 |
| 2001 | 2001-01-02 | 2001-12-31 |
| 2002 | 2002-01-01 | 2002-12-31 |
| 2003 | 2003-01-06 | 2003-12-31 |
| 2004 | 2004-01-01 | 2004-12-27 |
| 2005 | 2005-01-01 | 2005-12-31 |
| 2006 | 2006-01-01 | 2006-12-23 |
| 2007 | 2007-01-06 | 2007-12-29 |
| 2008 | 2008-01-06 | 2008-12-31 |
| 2009 | 2009-01-01 | 2009-12-24 |
| 2010 | 2010-01-02 | 2010-12-31 |
| 2011 | 2011-01-01 | 2011-11-30 |
| 2012 | 2012-01-01 | 2012-12-31 |
| 2013 | 2013-01-01 | 2013-12-31 |
| 2014 | 2014-01-01 | 2014-12-30 |
| 2015 | 2015-01-01 | 2015-12-26 |
| 2016 | 2016-01-10 | 2016-12-31 |
| 2017 | 2017-01-08 | 2017-12-27 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 53 | 67 | 1998 | 60 |
| 35 C (95 F): Days | 53 | 25 | 2017 | 25 |
| 40 C (104 F): Days | 28 | 13 | 2017 | 13 |
| 90 F (32.2 C): Days | 53 | 46 | 1998 | 41 |
| 100 F (37.8 C): Days | 43 | 16 | 2009 | 14 |
| 110 F (43.3 C): Days | 4 | 2 | 2017 | 2 |
| 0 C (32 F): Frost days (min | 7 | 5 | 2017 | 5 |
| 20 C (68 F): Tropical nights (min | 53 | 50 | 2017 | 50 |
| 25 C (77 F): Days with min | 8 | 2 | 1990 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 139 | 54 | 1950 | 12 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 138 | 21 | 1950 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 122 | 8 | 1956 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 43 | 3 | 1990 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1965.
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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-16).