Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. Read More >
Year | First Occurrence of at Least | High for Summer (°F) |
Last Occurrence of at Least | Number of 100° Days |
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---|---|---|---|---|---|---|---|---|---|---|---|---|
90°F | 95°F | 100°F | 100°F | 95°F | 90°F | |||||||
2024 | May 7 | Jun 6 | Jun 27 | 105 / Aug 20 | ||||||||
2023 | May 5 | Jun 10 | Jun 10 | 110 / Aug 2538 | Sep 24 | Sep 27 | Oct 21 | 66 | ||||
2022 | Mar 26 | Apr 5 | Jun 10 | 109 / Jul 10 | Oct 12 | Oct 15 | Oct 21 | 68 | ||||
2021 | May 3 | Jun 13 | Sep 5 | 101 / Sep 2037 | Sep 20 | Sep 28 | Oct 10 | 2 | ||||
2020 | Apr 8 | Apr 24 | Jun 9 | 107 / Aug 28 | Sep 1 | Oct 11 | Oct 18 | 25 | ||||
2019 | May 19 | Jun 8 | Jul 22 | 102 / Aug 13 | Sep 7 | Oct 10 | Oct 19 | 18 | ||||
2018 | May 7 | May 16 | Jun 2 | 114 / Jul 24 | Aug 31 | Sep 19 | Oct 7 | 54 | ||||
2017 | Apr 28 | Jun 12 | Jun 23 | 106 / Jul 29 | Aug 22 | Sep 22 | Nov 2 | 12 | ||||
2016 | Apr 11 | Jun 11 | Jul 20 | 105 / Aug 12 | Aug 12 | Sep 24 | Nov 1 | 19 | ||||
2015 | Jun 2 | Jun 8 | Jul 29 | 106 / Aug 1136 | Aug 24 | Oct 15 | Oct 16 | 14 | ||||
2014 | Apr 27 | Jul 7 | Jul 28 | 102 / Aug 1635 | Aug 26 | Oct 7 | Oct 10 | 13 | ||||
2013 | May 18 | Jun 10 | Jun 25 | 105 / Jun 28 | Sep 6 | Sep 25 | Oct 4 | 24 | ||||
2012 | Apr 28 | May 5 | Jun 6 | 107 / Jun 26 | Sep 7 | Sep 12 | Oct 17 | 38 | ||||
2011 | Mar 26 | May 8 | May 28 | 110 / Aug 27 | Sep 29 | Sep 29 | Oct 8 | 90 | ||||
2010 | May 5 | May 27 | Jul 16 | 107 / Aug 23 | Sep 1 | Sep 14 | Sep 30 | 31 | ||||
2009 | Apr 9 | Jun 6 | Jun 13 | 106 / Jun 24 | Sep 3 | Sep 9 | Oct 8 | 55 | ||||
2008 | Mar 14 | May 19 | Jun 28 | 105 / Aug 3 | Aug 10 | Sep 2 | Oct 4 | 20 | ||||
2007 | May 14 | Jun 9 | Aug 12 | 102 / Aug 13 | Aug 15 | Sep 27 | Oct 17 | 4 | ||||
2006 | Apr 7 | Apr 16 | Jun 7 | 106 / Aug 1734 | Sep 16 | Oct 5 | Oct 18 | 46 | ||||
2005 | Apr 28 | May 21 | Jul 1 | 108 / Sep 26 | Sep 28 | Sep 28 | Oct 20 | 16 | ||||
2004 | May 27 | May 31 | Aug 5 | 101 / Aug 5 | Aug 5 | Sep 19 | Oct 22 | 1 | ||||
2003 | Apr 24 | May 16 | Jul 21 | 105 / Aug 7 | Aug 11 | Sep 11 | Sep 27 | 9 | ||||
2002 | Apr 24 | Jun 12 | Jul 25 | 102 / Jul 7 | Aug 26 | Oct 6 | Oct 6 | 5 | ||||
2001 | May 20 | Jun 2 | Jul 9 | 106 / Aug 5 | Aug 25 | Aug 26 | Sep 23 | 34 | ||||
2000 | Apr 23 | Jul 7 | Jul 12 | 111 / Sep 4 | Sep 11 | Sep 23 | Oct 5 | 37 | ||||
1999 | May 4 | Jun 23 | Jul 24 | 105 / Aug 2633 | Sep 5 | Sep 27 | Oct 22 | 31 | ||||
1998 | May 6 | May 7 | May 31 | 109 / Jul 10 | Sep 4 | Oct 5 | Oct 16 | 61 | ||||
1997 | May 26 | Jul 3 | Jul 23 | 101 / Sep 932 | Sep 17 | Oct 2 | Oct 5 | 10 | ||||
1996 | Feb 20 | Feb 21 | Jun 18 | 104 / Aug 331 | Aug 7 | Aug 21 | Sep 10 | 20 | ||||
1995 | May 14 | Jul 8 | Jul 11 | 105 / Jul 28 | Aug 21 | Sep 6 | Oct 2 | 7 | ||||
1994 | May 30 | Jun 7 | Jun 28 | 102 / Aug 1730 | Aug 19 | Oct 3 | Oct 6 | 10 | ||||
1993 | May 15 | Jun 2 | Jul 29 | 101 / Aug 2029 | Aug 21 | Sep 25 | Oct 2 | 8 | ||||
1992 | May 11 | May 12 | Jul 15 | 102 / Jul 27 | Sep 10 | Sep 21 | Oct 26 | 7 | ||||
1991 | Mar 5 | Mar 5 | Jul 3 | 101 / Jul 1928 | Aug 5 | Oct 13 | Oct 24 | 10 | ||||
1990 | Apr 29 | Apr 29 | Jun 15 | 109 / Aug 31 | Sep 8 | Oct 8 | Oct 17 | 52 | ||||
1989 | Mar 14 | Jun 1 | Jul 13 | 104 / Sep 3 | Oct 2 | Oct 11 | Nov 14 | 23 | ||||
1988 | Apr 20 | May 9 | Jul 2 | 108 / Aug 8 | Sep 11 | Sep 28 | Nov 7 | 42 | ||||
1987 | Apr 11 | Jun 14 | Jun 24 | 106 / Aug 5 | Aug 26 | Sep 16 | Oct 5 | 29 | ||||
1986 | Feb 20 | Jun 21 | Jul 18 | 108 / Jul 31 | Aug 20 | Oct 4 | Oct 4 | 22 | ||||
1985 | Apr 15 | May 16 | May 30 | 106 / Sep 327 | Sep 4 | Sep 9 | Oct 14 | 43 | ||||
1984 | Apr 20 | May 4 | May 4 | 107 / Aug 20 | Aug 30 | Sep 24 | Oct 6 | 36 | ||||
1983 | May 7 | Jun 27 | Jul 31 | 104 / Aug 31 | Oct 4 | Oct 4 | Oct 5 | 12 | ||||
1982 | Apr 2 | Jun 10 | Jul 21 | 105 / Aug 6 | Sep 2 | Oct 4 | Oct 8 | 30 | ||||
1981 | Apr 20 | May 26 | Jul 20 | 103 / Aug 15 | Aug 26 | Sep 13 | Oct 14 | 15 | ||||
1980 | May 24 | May 26 | Jun 19 | 109 / Jun 27 | Sep 16 | Sep 22 | Oct 9 | 63 | ||||
1979 | Jun 6 | Jun 29 | Oct 3 | 101 / Oct 3 | Oct 3 | Oct 3 | Oct 21 | 1 | ||||
1978 | Apr 4 | Jun 12 | Jun 24 | 107 / Jul 1626 | Aug 27 | Oct 11 | Oct 12 | 46 | ||||
1977 | May 25 | Jun 2 | Jun 9 | 106 / Sep 27 | Oct 1 | Oct 8 | Oct 31 | 52 | ||||
1976 | May 29 | Jun 15 | Aug 1 | 105 / Aug 8 | Aug 26 | Sep 26 | Oct 1 | 9 | ||||
1975 | Jun 4 | Jul 8 | Jul 28 | 101 / Sep 325 | Sep 3 | Oct 11 | Oct 14 | 5 | ||||
1974 | Mar 30 | May 29 | Jul 14 | 107 / Jul 23 | Aug 22 | Sep 2 | Oct 9 | 22 | ||||
1973 | May 19 | Jun 28 | Aug 20 | 101 / Aug 23 | Aug 24 | Sep 3 | Sep 26 | 5 | ||||
1972 | Mar 27 | Jun 20 | Jun 25 | 103 / Jun 26 | Aug 28 | Sep 19 | Oct 19 | 9 | ||||
1971 | Mar 13 | Mar 28 | Mar 28 | 103 / Jul 1624 | Jul 22 | Sep 8 | Sep 30 | 17 | ||||
1970 | May 19 | Jun 13 | Jul 4 | 106 / Aug 10 | Aug 20 | Sep 9 | Oct 7 | 24 | ||||
1969 | May 20 | Jun 17 | Jun 19 | 112 / Aug 11 | Sep 7 | Oct 11 | Oct 11 | 58 | ||||
1968 | May 3 | Jun 10 | Aug 10 | 100 / Aug 10 | Aug 10 | Sep 16 | Oct 2 | 1 | ||||
1967 | Mar 11 | Mar 14 | Jun 24 | 105 / Jul 3123 | Aug 30 | Aug 30 | Oct 4 | 32 | ||||
1966 | Apr 12 | Jun 9 | Jul 15 | 105 / Jul 31 | Aug 10 | Sep 14 | Oct 14 | 17 | ||||
1965 | Apr 18 | Jun 14 | Jul 22 | 102 / Aug 20 | Sep 14 | Sep 17 | Oct 10 | 13 | ||||
1964 | May 21 | Jun 6 | Jul 4 | 106 / Aug 522 | Aug 21 | Sep 11 | Sep 20 | 30 | ||||
1963 | Apr 9 | Apr 9 | Apr 9 | 103 / Aug 2721 | Sep 7 | Oct 8 | Oct 15 | 38 | ||||
1962 | May 15 | Jun 20 | Jul 25 | 108 / Aug 10 | Aug 24 | Sep 16 | Oct 16 | 24 | ||||
1961 | Apr 14 | May 22 | Aug 4 | 101 / Aug 4 | Aug 4 | Sep 9 | Sep 29 | 1 | ||||
1960 | Apr 6 | Jun 2 | Jun 15 | 105 / Jul 27 | Jul 29 | Sep 22 | Oct 13 | 5 | ||||
1959 | May 13 | May 31 | Aug 7 | 100 / Aug 3020 | Aug 30 | Sep 27 | Oct 11 | 2 | ||||
1958 | May 23 | May 26 | Jul 25 | 104 / Aug 13 | Aug 17 | Sep 1 | Oct 9 | 13 | ||||
1957 | May 22 | Jun 9 | Jul 2 | 108 / Jul 30 | Sep 2 | Sep 21 | Sep 21 | 28 | ||||
1956 | Mar 27 | May 18 | Jun 27 | 105 / Aug 15 | Sep 19 | Oct 6 | Oct 9 | 39 | ||||
1955 | Mar 10 | Jun 25 | Aug 7 | 103 / Aug 9 | Aug 9 | Sep 22 | Dec 24 | 3 | ||||
1954 | Feb 26 | Jun 1 | Jul 1 | 108 / Jul 25 | Sep 20 | Oct 13 | Oct 13 | 39 | ||||
1953 | Apr 8 | Jun 1 | Jun 14 | 105 / Aug 1019 | Sep 28 | Oct 1 | Oct 11 | 16 | ||||
1952 | May 4 | Jun 13 | Jul 25 | 105 / Aug 718 | Sep 1 | Sep 17 | Oct 2 | 27 | ||||
1951 | Apr 19 | May 29 | Jul 17 | 106 / Aug 1717 | Sep 7 | Sep 9 | Oct 30 | 41 | ||||
1950 | May 19 | Jun 19 | Aug 4 | 100 / Aug 1616 | Aug 16 | Sep 16 | Oct 12 | 5 | ||||
1949 | May 21 | May 30 | Jul 11 | 103 / Aug 19 | Aug 19 | Sep 18 | Oct 19 | 9 | ||||
1948 | Apr 6 | Apr 8 | Jun 5 | 106 / Aug 21 | Aug 22 | Sep 8 | Nov 4 | 24 | ||||
1947 | May 4 | May 4 | Jul 16 | 108 / Aug 10 | Sep 2 | Oct 18 | Oct 24 | 13 | ||||
1946 | Mar 29 | Mar 30 | Jul 11 | 105 / Jul 13 | Aug 19 | Sep 12 | Sep 22 | 16 | ||||
1945 | Apr 25 | May 7 | Jul 26 | 104 / Aug 18 | Aug 18 | Sep 25 | Sep 27 | 4 | ||||
1944 | Jun 3 | Jun 18 | Jul 16 | 104 / Jul 2715 | Aug 13 | Sep 22 | Oct 6 | 21 | ||||
1943 | Jan 23 | May 2 | Jun 28 | 104 / Jul 2414 | Aug 29 | Sep 14 | Sep 16 | 12 | ||||
1942 | May 27 | Jun 3 | Aug 8 | 102 / Aug 8 | Aug 10 | Sep 13 | Sep 19 | 3 | ||||
1941 | May 17 | Jul 1 | Aug 17 | 101 / Aug 17 | Aug 18 | Sep 13 | Oct 13 | 2 | ||||
1940 | Mar 31 | Apr 22 | Jul 29 | 103 / Aug 4 | Sep 9 | Sep 17 | Oct 20 | 11 | ||||
1939 | Apr 2 | Jun 10 | Jul 7 | 105 / Jul 8 | Sep 3 | Sep 28 | Oct 27 | 16 | ||||
1938 | May 20 | Jun 1 | Aug 27 | 100 / Oct 213 | Oct 2 | Oct 3 | Nov 16 | 2 | ||||
1937 | Apr 28 | May 9 | Jun 23 | 105 / Aug 512 | Aug 28 | Oct 6 | Oct 29 | 24 | ||||
1936 | Mar 14 | Jun 9 | Jun 21 | 111 / Aug 12 | Sep 6 | Sep 13 | Sep 25 | 13 | ||||
1935 | Apr 1 | Jun 9 | Jul 8 | 105 / Aug 10 | Aug 28 | Aug 29 | Sep 2 | 10 | ||||
1934 | Apr 23 | May 29 | Jun 14 | 105 / Jul 24 | Aug 23 | Sep 7 | Oct 20 | 36 | ||||
1933 | Apr 9 | May 9 | Jun 22 | 107 / Jul 1311 | Sep 21 | Sep 23 | Sep 30 | 19 | ||||
1932 | May 23 | May 26 | Jul 15 | 102 / Aug 610 | Aug 13 | Sep 21 | Sep 22 | 20 | ||||
1931 | May 15 | Jun 8 | Jun 27 | 104 / Jul 8 | Jul 8 | Sep 26 | Oct 13 | 7 | ||||
1930 | Apr 7 | Jun 18 | Jun 26 | 104 / Jul 13 | Aug 22 | Sep 13 | Sep 25 | 26 | ||||
1929 | Mar 23 | Jun 9 | Jul 18 | 102 / Aug 129 | Aug 13 | Sep 5 | Oct 4 | 8 | ||||
1928 | Mar 25 | May 13 | May 27 | 101 / Jul 158 | Aug 28 | Sep 15 | Oct 12 | 10 | ||||
1927 | May 7 | May 27 | Jul 18 | 102 / Aug 31 | Sep 1 | Sep 18 | Oct 6 | 12 | ||||
1926 | May 23 | Jun 14 | Aug 7 | 101 / Aug 87 | Aug 8 | Sep 24 | Oct 12 | 3 | ||||
1925 | Apr 14 | Apr 17 | Jun 12 | 107 / Jul 14 | Sep 5 | Sep 20 | Oct 7 | 50 | ||||
1924 | Apr 13 | Jun 9 | Jun 13 | 103 / Aug 11 | Aug 27 | Sep 21 | Oct 3 | 14 | ||||
1923 | May 17 | May 29 | Jul 12 | 103 / Jul 24 | Aug 16 | Sep 3 | Sep 30 | 24 | ||||
1922 | May 19 | May 26 | Jun 20 | 104 / Aug 3 | Sep 6 | Sep 9 | Sep 30 | 28 | ||||
1921 | May 19 | May 29 | Aug 4 | 101 / Aug 256 | Aug 25 | Sep 13 | Oct 19 | 7 | ||||
1920 | Apr 15 | May 25 | 99 / Jul 27 | Sep 15 | Sep 27 | 0 | ||||||
1919 | Jun 5 | Jul 7 | 99 / Aug 8 | Aug 29 | Sep 19 | 0 | ||||||
1918 | Feb 25 | Feb 25 | Jun 12 | 105 / Jun 265 | Sep 13 | Sep 15 | Oct 5 | 45 | ||||
1917 | May 3 | Jun 5 | Jun 29 | 107 / Jul 10 | Aug 22 | Sep 9 | Oct 7 | 28 | ||||
1916 | Mar 6 | May 30 | Jul 10 | 102 / Jul 194 | Aug 22 | Sep 11 | Oct 13 | 6 | ||||
1915 | May 14 | Jun 12 | Aug 5 | 102 / Aug 7 | Aug 7 | Sep 28 | Sep 29 | 3 | ||||
1914 | May 5 | Jun 10 | Jun 28 | 103 / Jul 19 | Aug 4 | Sep 14 | Sep 22 | 18 | ||||
1913 | May 31 | May 28 | Jun 2 | 104 / Jul 10 | Sep 6 | Sep 6 | Sep 8 | 18 | ||||
1912 | May 3 | May 23 | Jun 13 | 107 / Jun 30 | Sep 11 | Sep 24 | Oct 10 | 36 | ||||
1911 | Jan 30 | May 24 | May 31 | 105 / Jun 14 | Sep 20 | Oct 6 | Oct 6 | 45 | ||||
1910 | May 10 | Jun 1 | Jun 2 | 105 / Aug 33 | Sep 3 | Oct 15 | Oct 16 | 43 | ||||
1909 | Apr 29 | Jun 4 | Jun 28 | 109 / Aug 18 | Sep 12 | Sep 22 | Oct 16 | 44 | ||||
1908 | Apr 25 | Jun 4 | Jul 11 | 101 / Sep 5 | Sep 5 | Sep 9 | Oct 16 | 6 | ||||
1907 | Mar 19 | Apr 11 | Apr 11 | 104 / Jun 29 | Aug 14 | Sep 8 | Oct 2 | 25 | ||||
1906 | Mar 26 | May 4 | May 5 | 103 / Jun 20 | Jul 22 | Sep 17 | Sep 23 | 11 | ||||
1905 | Apr 28 | May 12 | Jun 6 | 103 / Aug 262 | Sep 13 | Oct 3 | Oct 18 | 35 | ||||
1904 | Mar 2 | Mar 12 | Jul 11 | 102 / Jul 12 | Sep 2 | Oct 5 | Oct 24 | 6 | ||||
1903 | Apr 1 | Jun 18 | Jul 18 | 101 / Aug 171 | Aug 17 | Sep 13 | Oct 3 | 7 | ||||
1902 | Mar 15 | Apr 12 | Jun 8 | 104 / Jun 20 | Sep 1 | Sep 22 | Sep 29 | 38 | ||||
Also on: 1Jul 19, Jul 23; 2Aug 25; 3Jul 17, Jul 18, Aug 1, Aug 2; 4Jul 10; 5Jun 19; 6Aug 22, Aug 23, Aug 24; 7Aug 7; 8Jul 14; 9Aug 4; 10Jul 16, Jul 17, Jul 18, Jul 29, Jul 30, Aug 2, Aug 3, Aug 4; 11Jul 12; 12Aug 4; 13Aug 27; 14Jul 7; 15Jul 19; 16Aug 4, Aug 5, Aug 9, Aug 10; 17Aug 4, Aug 5; 18Aug 6; 19Aug 8; 20Aug 7; 21Jul, 21, Jul 22, Jul 24; 22Jul 25; 23Jul 30; 24Jul 7, Jul 15; 25Jul, 29, Aug 4, Aug 22; 26Jul 15; 27Sep 1; 28Jul 15, Jul 18; 29Jul 30; 30Jul 23, Jul 26; 31Jul 7; 32Jul 28, Jul 29, Aug 20; 33Aug 20; 34Jul 18; 35Aug 8, Aug 10; 36Aug 10; 37Sep 5; 38Aug 20 |