HOT SPELLS at BOISE, IDAHO (1931-2008) Summer of: Beginning Date Daily Maximum Temperatures of Hot Spell* 1931 c+ 7/16 95, 99, 97, 98, 108, 102, 105, 102, 101, 104, 103, 98, 96, 94 c+ 8/2 94, 100, 94, 92 c+ 8/9 94, 100, 96 c- 9/1 85, 89, 101, 94, 91, 92 1932 8/3 94, 94, 93, 92, 102, 98 1933 6/10 82, 91, 95, 96, 101, 101, 93, 82, 83, 86, 88, 89, 83, 87, 89, 88 7/23 98, 108, 104, 100, 99, 93, 92 8/7 93, 93, 94, 99, 98, 99, 100, 100, 99, 98, 93 1934 w- 7/23 92, 94, 98, 104, 108, 106, 104, 91 w- 8/8 92, 90, 96, 90, 91, 91, 95, 94, 100, 92 1935 7/12 97, 101, 105, 99, 91, 93, 95, 98, 93, 95, 93, 95 1936 6/19 86, 92, 95, 104, 99, 95, 91, 99, 96 6/30 89, 98, 102, 89, 97, 93, 93 7/13 94, 94, 95, 104, 100, 99, 101, 103, 103 7/23 100, 93 8/13 94, 97, 98, 100, 90 1937 6/26 87, 91, 97, 89, 90, 94, 90, 100, 106 1938 c+ 7/16 91, 94, 99, 95, 96, 99, 102, 98, 94, 92, 94 1939 c- 7/7 93, 98, 101, 101, 97, 98, 102, 92 7/22 92, 95, 92, 95, 100, 102, 101, 99 8/1 92, 97, 100, 95, 95 1940 w+ 6/9 80, 88, 97, 102, 92, 89, 94, 95, 97, 100, 109, 86, 88 w+ 8/6 92, 96, 100, 96, 95, 99, 100, 90 1941 w+ 7/13 92, 90, 95, 95, 99, 101, 92, 95, 94, 97, 96 1942 c- 6/29 87, 92, 92, 94, 98, 104, 97, 96, 96, 89, 91, 92 c- 7/20 91, 104, 100, 96, 95, 96, 92, 92, 95 c- 8/6 96, 97, 100, 97, 100, 97, 98, 92 c- 8/15 92, 97, 99, 98, 100, 93, 88, 93, 102, 89 1943 7/23 98, 96, 102, 97, 96, 92 1945 c+ 6/18 87, 88, 93, 102 c+ 8/28 86, 95, 85, 96, 102, 93, 95, 88 1946 w+ 7/19 93, 100, 103, 99, 98, 95, 94 w+ 7/27 92, 102, 98 w+ 8/1 94, 92, 96, 102, 92 w+ 8/18 93, 105, 96, 96, 93 1947 c 7/12 95, 94, 104 c 7/16 92, 101, 94, 94, 93, 96, 93 c 7/30 92, 94, 92, 103, 96 1949 w 7/8 91, 97, 98, 97, 96, 97, 99, 104 w 7/30 98, 100, 97, 99, 105, 95, 98, 97 1950 c+ 6/27 88, 90, 94, 103, 92, 90, 92, 98, 95, 95, 90, 93, 96 c+ 8/13 91, 89, 92, 92, 100, 97, 95, 93, 94, 101 c+ 8/26 87, 85, 86, 90, 95, 94, 96, 101, 96, 93, 86, 87, 88, 81 1951 w+ 7/12 94, 99, 96, 94, 96, 102, 99, 96 w+ 7/22 92, 103, 98, 95, 100, 96, 93, 93, 94, 103, 99, 102, 97 1953 w+ 7/3 89, 90, 89, 95, 101, 90, 96, 93, 102, 105, 101, 99 w+ 8/12 99, 94, 94, 99, 92, 89, 96, 100, 87 1954 c- 7/3 97, 100, 96, 98, 92, 90 1955 c+ 6/18 83, 89, 92, 102, 98 c+ 7/13 94, 103, 98, 104, 91, 94 c+ 7/20 92, 102, 94, 92, 95 c+ 7/30 91, 104, 95, 94 c+ 8/26 85, 87, 88, 95, 105, 94, 91, 94, 92, 94, 97, 98, 97, 81, 80, 85, 85, 81, 93 1956 c+ 7/8 92, 106, 95, 90, 92 c+ 7/16 92, 92, 93, 101, 93, 95, 97, 97, 100, 98, 93, 93, 94 1957 w- 7/24 93, 100 1958 c- 7/26 92, 92, 100 1959 w- 7/15 96, 99, 99, 98, 97, 100, 101, 101, 106, 95, 97, 99, 93 w- 7/30 94, 100, 97, 91 1960 c 7/3 88, 91, 92, 97, 97, 98, 98, 96, 95, 102, 99, 98, 100, 103, 102, 103, 111, 103, 102, 98, 97, 94, 95, 102, 100, 99, 103, 95 1961 6/13 84, 91, 96, 99, 104, 100, 99, 101, 89, 103, 97, 96, 99, 97, 95, 92 7/7 90, 92, 98, 93, 92, 95, 95, 97, 102, 96, 92, 93, 96, 94, 93, 101, 92, 94, 93, 97, 96, 94 7/30 94, 96, 98, 103, 104, 110, 99, 91, 94, 91, 92, 92, 93, 93, 93, 90, 96, 91 1962 c- 6/17 84, 89, 88, 86, 87, 85, 88, 98, 102 1963 w 8/2 91, 95, 93, 96, 100, 98, 96, 96 w 8/11 95, 95, 104, 93, 90, 92, 92, 90 w 9/2 82, 86, 92, 100, 92, 81, 86, 89, 91, 97, 94 1964 c+ 7/6 90, 100, 96 c+ 7/17 101, 94 c+ 8/15 91, 90, 101 1965 w+ 7/24 92, 98, 92, 98, 92, 91, 93, 96, 92, 98, 101 w+ 8/6 91, 103, 98, 100, 93, 91 1966 8/1 97, 103, 97, 95 1967 c- 6/28 85, 93, 95, 93, 100, 98, 94, 93, 100, 98, 94, 92, 91, 89, 90, 89, 93, 98, 107, 98, 94, 97, 91 c- 7/27 92, 105, 94, 95, 92, 93, 95, 101, 95, 93, 91 c- 8/9 92, 100, 94, 97, 99, 98, 98, 99, 99, 99, 99, 103, 89, 95, 98, 91, 90, 91, 89, 90, 94, 96, 99, 98, 89, 90, 90, 90, 85, 91, 81, 85, 84 1968 c 6/24 86, 90, 102, 91 c 7/2 95, 96, 98, 99, 101, 100, 103, 100, 95, 99 c 7/23 92, 94, 95, 99, 104, 103, 100, 92 1969 w 7/27 97, 95, 97, 95, 97, 97, 96, 95, 96, 94, 100 w 8/18 89, 89, 92, 99, 97, 107, 100 1970 c- 6/18 85, 89, 92, 98, 97, 102, 97, 100, 101 c- 7/15 100, 101, 91, 98, 101, 99 c- 8/4 98, 96, 102, 93 c- 8/10 92, 95, 101 c- 8/15 92, 100, 92, 90, 93, 91, 93, 95, 101, 99, 97, 91, 90, 91, 90, 99, 97, 85, 85, 89 1971 c 7/19 93, 91, 96, 93, 95, 96, 95, 93, 94, 98, 98, 100, 100, 104, 101, 98, 102, 100, 95, 98, 99, 103, 98, 97, 100, 103, 93, 95, 94, 89, 94, 101, 91, 92, 87 1972 w+ 8/4 93, 98, 98, 98, 101, 101, 99, 102, 95 1973 c+ 6/20 93, 98, 103 c+ 7/7 90, 95, 101, 103 c+ 7/15 95, 101, 98, 95 1974 c+ 6/9 81, 84, 96, 97, 95, 105, 97, 104, 105, 103, 103 c+ 7/13 92, 95, 94, 93, 94, 101, 95, 96, 98, 95 1975 c+ 6/30 87, 88, 91, 102, 102, 102, 101, 99, 101, 102, 102 c+ 7/14 101 c+ 7/19 92, 95, 95, 93, 96, 100, 98, 99, 108, 99 1976 w+ 6/27 90, 101, 100, 89 w+ 7/15 94, 103 w+ 8/28 86, 91, 92, 92, 100, 87, 84, 92, 92 1977 w+ 6/3 85, 89, 93, 101, 89, 83 w+ 7/14 91, 96, 100, 96, 94 w+ 7/20 97, 100, 97, 94 w+ 7/31 93, 102, 97, 97, 93 1978 c 7/22 94, 104, 99, 100, 105, 96, 96, 95, 99, 95, 92, 93, 95, 102, 97, 98, 97, 98, 99, 94, 95, 93 1979 c 6/23 87, 97, 94, 94, 88, 100, 94 c 7/16 97, 102, 101, 100, 99 1980 7/21 96, 106, 97, 93 1981 c+ 7/3 95, 102, 98, 90 c+ 8/5 93, 93, 95, 95, 94, 92, 96, 95, 101, 97, 96, 97, 96, 95, 94, 88, 88, 91, 97, 97, 94, 94, 88, 91, 92 1982 w+ 1983 w- 8/1 96, 98, 96, 98, 98, 103, 106, 96, 93, 91 1984 7/24 98, 104, 100, 93 8/8 93, 101, 99, 96, 97 1985 6/27 93, 92, 92, 90, 91, 96, 100, 101, 97, 101, 99, 101, 101, 92 7/25 93, 94, 100 1986 8/1 93, 96, 97, 95, 96, 96, 97, 94, 98, 105, 92 8/17 95, 100, 92, 95 8/22 92, 89, 93, 92, 95, 100, 91, 93 1987 w+ 6/8 84, 80, 82, 94, 94, 99, 101, 88 w+ 7/24 93, 93, 104, 98, 96, 99, 95 w+ 8/3 92, 100 w+ 8/8 96, 100, 94 w+ 8/27 87, 94, 93, 92, 94, 101, 92 1988 c+ 6/14 91, 96, 102, 96, 93, 103, 97, 101, 104, 103, 96, 96, 89, 90 c+ 7/19 94, 100, 103, 99, 96, 96, 98, 96, 97, 96, 96, 102, 95 c+ 8/23 92, 100, 97, 88 1989 c 7/2 90, 96, 93, 89, 98, 108 c 7/13 96, 103, 92 c 7/18 99, 106, 100, 91, 93, 97, 99, 99, 98, 97, 96, 100, 97, 98 1990 6/20 87, 93, 102, 92, 96, 96, 94, 88, 88, 103, 101, 98 7/8 93, 97, 98, 104, 103, 100, 96, 97, 99, 96, 94, 92, 92, 95, 99, 93 7/28 94, 100, 104, 92, 93 8/4 97, 106, 109, 103, 107, 100, 96, 94, 96, 100, 104, 95 1991 w 7/2 91, 98, 101, 96, 91, 91, 92, 94 w 7/11 92, 103, 99, 92, 95, 95 w 7/27 94, 100, 99, 95, 102 w 8/2 92, 95, 97, 95, 98, 94, 98, 100 1992 w 6/18 86, 83, 90, 96, 98, 100, 98, 91 w 7/26 98, 99, 98, 92, 96, 106, 102, 100, 97, 96, 92, 93, 92 w 8/10 95, 98, 102, 102, 103, 93 w 8/17 92, 102, 101, 96, 96 1993 w+ 7/28 102 1994 w+ 6/19 91, 98, 97, 100, 95, 89, 93 w+ 7/8 97, 101, 91, 92, 92, 91, 94, 94, 95, 100, 95, 92, 96, 101, 106, 101, 101, 99, 99, 102, 102, 98, 97, 100, 97, 99, 103, 99, 96, 92, 101, 91, 91, 97, 96, 98, 101, 105, 95, 93, 91, 94, 93, 90, 89 1995 7/27 95, 102 1996 6/30 90, 98, 102, 100, 92 7/22 94, 97, 99, 98, 101, 103, 96 8/7 91, 96, 98, 104, 102, 98, 98, 94, 98, 97 8/23 92, 92, 95, 104 1997 w+ 7/21 101, 95, 95 w+ 8/2 95, 100, 94, 92, 95, 101 w+ 8/19 95, 100, 93, 97, 96 1998 7/13 91, 93, 98, 100, 108, 99, 99, 98, 100, 100, 98, 94, 96, 99, 99, 99, 99, 93 8/3 94, 100, 105, 101, 93, 93, 97, 95, 97, 96, 100, 101, 96 8/25 90, 86, 91, 98,98, 88, 92, 98, 99, 100, 99, 83, 93, 94, 87 1999 c- 6/11 82, 91, 89, 94, 100, 91, 90, 93, 87, 93 c- 7/9 90, 98, 98, 98, 101 c- 7/26 97, 102, 100, 98, 92, 93, 98, 98 2000 c+ 7/10 90, 97, 100, 99, 96 c+ 7/19 93, 95, 102, 99, 92, 94, 96, 93, 94, 101, 100, 100, 101, 98, 98, 102, 95, 95, 96, 97, 100, 102, 95 c- 9/12 89, 91, 101, 90, 85, 83, 86, 81, 77 2001 6/26 89, 86, 86, 91, 92, 95, 100, 106, 105, 90, 95 8/1 94, 101, 99 8/5 98, 102, 102, 101, 93, 98, 97, 96, 94, 97, 98, 99, 101, 94 8/25 91, 100, 96, 92, 92, 95, 91, 92, 92, 92, 90 2002 w- 6/20 87, 86, 85, 90, 93, 98, 101, 97, 89, 88, 87 w- 7/9 93, 105, 109, 108, 110, 101, 98, 100, 99 2003 5/20 74, 76, 86, 90, 97, 79, 80, 89, 99, 95, 78, 78, 80, 77, 80, 82, 85, 88, 84, 93, 87, 85, 81, 88, 84, 86, 90, 89, 94, 101, 85 6/26 86, 91, 91, 101, 92, 89, 87, 90, 91, 91, 91, 96, 87, 97, 101, 102, 102, 91, 92, 101, 100, 102, 103, 103, 103, 101, 108, 107, 95, 92, 94, 92, 99, 102, 106, 101, 101 8/4 92, 98, 92, 91, 94, 98, 100, 95, 89, 93, 96, 97 8/18 93, 102, 92, 89 2004 w- 7/12 96, 99, 101, 98, 99, 104 7/21 93, 94, 96, 101, 99, 94, 93, 93, 95, 97, 99, 102, 97 8/9 94, 97, 97, 99, 100, 96, 93, 91 8/29 86, 93, 102, 90 2005 6/19 84, 95, 101, 90, 84, 91, 86 7/11 96, 103, 94, 91, 105, 96 7/18 98, 101, 100, 107, 103, 92, 96 7/26 90, 94, 100, 99, 98, 100, 97 8/3 92, 98, 105, 102, 98, 99, 99, 95, 91 8/19 91, 98, 101, 96, 88 2006 6/22 86, 90, 93, 94, 97, 101, 94, 86, 88, 94, 96, 93, 100, 90, 93, 89, 94, 99, 97, 101, 92, 91, 99, 99, 102, 100, 95, 98, 101, 104, 107, 105, 102, 100, 100, 104, 100, 96 8/3 93, 94, 93, 96, 104, 92 8/19 90, 93, 100, 96, 90 2007 6/26 89, 97, 98, 94, 88, 96, 90, 96, 101, 104, 105, 100, 95, 98, 99, 99, 100, 104, 105, 102, 100, 100, 97 7/20 97, 97, 104, 95, 91, 96, 98, 103, 101, 100, 96, 98 8/11 95, 98, 95, 97, 100, 99, 92, 91 8/28 86, 95, 98, 94, 96, 97, 101, 87 2008 6/13 84, 84, 87, 90, 88, 84, 85, 97, 101, 87, 89, 84, 90, 85, 90, 95, 105, 100, 93, 98, 102, 93, 87, 92, 90, 92, 96, 95 8/3 91, 96, 96, 102, 101, 96, 92 8/12 93, 94, 94, 93, 95, 100, 103 c = la nina w = el nino weak c- or w- moderate c or w strong c+ or w+ * For the purposes of this tabulation, "hot spell" is defined as an unbroken series of two or more daily maximum temperatures >= daily normals, if at least one of these temperatures >= 100 F. 4/24/2008 hot spells at boise.txt