Middle Dam Threshold Days by Year
16 fixed thresholds counted per year at Middle Dam (USC00175261): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Middle Dam Thresholds
- Middle Dam: days with 10 mm (0.39 in) or more of precipitation in 82 years, most in 1936 with 48.
- Middle Dam: days with 25 mm (0.98 in) or more of precipitation in 81 years, most in 1937 with 16.
- Middle Dam: days with a maximum temperature at or below 0 C (32 F) in 62 years, most in 1965 with 112.
- Middle Dam: nights with a minimum temperature at or below 0 C (32 F) in 60 years, most in 1972 with 225.
- 16 fixed thresholds have at least one qualifying day at Middle Dam.
Days at or above 30 C (86 F)
55 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1932 | 8 | 9.7 |
| 1933 | 7 | 9.7 |
| 1934 | 9 | 9.7 |
| 1936 | 2 | 9.7 |
| 1937 | 21 | 9.7 |
| 1938 | 13 | 9.7 |
| 1939 | 8 | 9.7 |
| 1940 | 4 | 9.6 |
| 1941 | 4 | 9.6 |
| 1942 | 8 | 9.6 |
| 1943 | 8 | 9.6 |
| 1944 | 19 | 9.6 |
| 1945 | 8 | 9.6 |
| 1946 | 11 | 9.6 |
| 1947 | 15 | 9.6 |
| 1962 | 1 | 3.4 |
| 1963 | 10 | 3.4 |
| 1964 | 3 | 3.4 |
| 1965 | 2 | 3.4 |
| 1966 | 1 | 3.4 |
| 1968 | 3 | 3.4 |
| 1969 | 4 | 3.4 |
| 1970 | 6 | 5.7 |
| 1971 | 1 | 5.7 |
| 1973 | 3 | 5.7 |
| 1974 | 2 | 5.7 |
| 1975 | 11 | 5.7 |
| 1976 | 5 | 5.7 |
| 1977 | 9 | 5.7 |
| 1978 | 9 | 5.7 |
| 1979 | 5 | 5.7 |
| 1980 | 1 | 4.3 |
| 1986 | 1 | 4.3 |
| 1988 | 10 | 4.3 |
| 1989 | 5 | 4.3 |
| 1991 | 4 | 4.8 |
| 1992 | 2 | 4.8 |
| 1993 | 7 | 4.8 |
| 1994 | 4 | 4.8 |
| 1995 | 10 | 4.8 |
| 1996 | 3 | 4.8 |
| 1997 | 2 | 4.8 |
| 1998 | 3 | 4.8 |
| 1999 | 8 | 4.8 |
| 2001 | 15 | 7.4 |
| 2002 | 14 | 7.4 |
| 2003 | 5 | 7.4 |
| 2005 | 7 | 7.4 |
| 2006 | 6 | 7.4 |
| 2007 | 6 | 7.4 |
| 2008 | 4 | 7.4 |
| 2009 | 2 | 7.4 |
| 2010 | 9 | 6.7 |
| 2011 | 5 | 6.7 |
| 2012 | 6 | 6.7 |
| Year | First date | Last date |
|---|---|---|
| 1932 | 1932-06-04 | 1932-08-26 |
| 1933 | 1933-06-05 | 1933-07-24 |
| 1934 | 1934-06-05 | 1934-08-08 |
| 1936 | 1936-06-02 | 1936-07-10 |
| 1937 | 1937-05-31 | 1937-09-02 |
| 1938 | 1938-06-21 | 1938-08-16 |
| 1939 | 1939-07-04 | 1939-07-28 |
| 1940 | 1940-07-23 | 1940-08-18 |
| 1941 | 1941-06-07 | 1941-07-24 |
| 1942 | 1942-06-11 | 1942-09-02 |
| 1943 | 1943-07-11 | 1943-08-02 |
| 1944 | 1944-06-28 | 1944-08-16 |
| 1945 | 1945-04-11 | 1945-09-08 |
| 1946 | 1946-05-24 | 1946-08-06 |
| 1947 | 1947-06-23 | 1947-09-15 |
| 1962 | 1962-05-20 | 1962-05-20 |
| 1963 | 1963-07-01 | 1963-07-30 |
| 1964 | 1964-05-24 | 1964-07-29 |
| 1965 | 1965-08-16 | 1965-08-17 |
| 1966 | 1966-07-04 | 1966-07-04 |
| 1968 | 1968-07-16 | 1968-07-19 |
| 1969 | 1969-06-14 | 1969-08-03 |
| 1970 | 1970-06-03 | 1970-08-17 |
| 1971 | 1971-07-01 | 1971-07-01 |
| 1973 | 1973-07-09 | 1973-09-01 |
| 1974 | 1974-05-16 | 1974-07-15 |
| 1975 | 1975-05-21 | 1975-08-12 |
| 1976 | 1976-06-16 | 1976-08-23 |
| 1977 | 1977-05-23 | 1977-08-30 |
| 1978 | 1978-05-28 | 1978-08-17 |
| 1979 | 1979-05-10 | 1979-07-26 |
| 1980 | 1980-06-26 | 1980-06-26 |
| 1986 | 1986-05-20 | 1986-05-20 |
| 1988 | 1988-06-14 | 1988-08-06 |
| 1989 | 1989-06-23 | 1989-09-10 |
| 1991 | 1991-06-28 | 1991-07-21 |
| 1992 | 1992-05-22 | 1992-05-23 |
| 1993 | 1993-06-27 | 1993-08-27 |
| 1994 | 1994-06-17 | 1994-07-22 |
| 1995 | 1995-06-19 | 1995-08-17 |
| 1996 | 1996-08-06 | 1996-08-08 |
| 1997 | 1997-07-01 | 1997-07-02 |
| 1998 | 1998-07-16 | 1998-08-10 |
| 1999 | 1999-06-01 | 1999-09-05 |
| 2001 | 2001-06-15 | 2001-09-10 |
| 2002 | 2002-07-03 | 2002-09-11 |
| 2003 | 2003-06-25 | 2003-07-05 |
| 2005 | 2005-06-26 | 2005-08-11 |
| 2006 | 2006-06-19 | 2006-08-03 |
| 2007 | 2007-05-26 | 2007-09-08 |
| 2008 | 2008-06-08 | 2008-07-09 |
| 2009 | 2009-08-18 | 2009-08-19 |
| 2010 | 2010-05-26 | 2010-09-04 |
| 2011 | 2011-06-09 | 2011-07-24 |
| 2012 | 2012-06-21 | 2012-08-05 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 55 | 21 | 1937 | 6 |
| 35 C (95 F): Days | 2 | 1 | 1944 | 1 |
| 90 F (32.2 C): Days | 24 | 9 | 1944 | 1 |
| 0 C (32 F): Ice days (max | 62 | 112 | 1965 | 66 |
| 0 C (32 F): Frost days (min | 60 | 225 | 1972 | 181 |
| -10 C (14 F): Days with min | 60 | 115 | 1970 | 69 |
| -20 C (-4 F): Days with min | 56 | 58 | 1989 | 20 |
| -30 C (-22 F): Days with min | 35 | 13 | 1971 | 2 |
| 20 C (68 F): Tropical nights (min | 12 | 7 | 1947 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 82 | 48 | 1936 | 36 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 81 | 16 | 1937 | 10 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 35 | 4 | 2005 | 3 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 1 | 2008 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 27 | 15 | 1933 | 6 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 11 | 3 | 1933 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 1 | 1 | 2003 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1932.
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 (2025-12-31).