Spring weather index bets your BBQ collected dust

Is your barbecue collecting dust again? It wouldn't be surprising...
Three springs ago, two Atmospheric Sciences professors at the University of Washington, Cliff Mass and Mark Albright, came up with a new way to measure the gloom of the spring of 2008: The "Barbecue Index."
Mass and Albright defined this index as the number of times since March 11 (the average date they consider the unofficial start to spring-like weather in the Northwest) it has been 60 degrees or warmer.
Why 60? They concluded that most people are comfortable outside once the temperature gets to 60 or better.
They went back to 1894 -- the farthest back they could get records for Seattle. Now, in 2008, it turned out it was among the worst ever -- just 23 days above 60.
This year had to be worse, right? Actually, no. Believe it or not, our Barbecue Index this year was 27, including a nine-day above 60 streak to finish off the period -- but still well below the median number of 42 days. The best years were 1934 (74 out of days) and 1992 (62 days).
All time BBQ Index List:
Here is the "BBQ Index" All Time List for the 92 days between March 11 to June 10:
- 1934 74
- 1992 69
- 1941 69
- 1947 66
- 1940 63
- 1926 61
- 2004 60
- 1994 60
- 1915 58
- 1989 58
- 1979 57
- 1939 57
- 1995 56
- 1900 56
- 1935 55
- 2005 54
- 1987 53
- 1906 52
- 1914 51
- 1942 51
- 1907 50
- 1951 50
- 1936 50
- 1983 50
- 1949 49
- 1990 49
- 1993 49
- 1977 49
- 1897 48
- 1958 48
- 1956 48
- 2007 48
- 1944 48
- 1931 48
- 2006 48
- 1938 47
- 1910 47
- 1978 47
- 1976 47
- 1943 47
- 1946 47
- 1930 47
- 1997 46
- 1969 46
- 1973 45
- 1957 45
- 1898 45
- 1952 45
- 1968 45
- 1904 45
- 1945 44
- 1905 44
- 1988 44
- 1928 44
- 2009 44
- 1980 43
- 2000 43
- 1924 42
- 1895 42
- 1972 42
- 1937 41
- 1981 41
- 1966 41
- 1960 41
- 1963 41
- 1991 41
- 1965 41
- 2010 41
- 1998 40
- 1925 40
- 1919 40
- 1923 39
- 1974 39
- 1996 39
- 1982 39
- 1918 39
- 1932 39
- 1902 39
- 1901 38
- 1986 38
- 2003 38
- 1912 38
- 1985 38
- 1903 36
- 1950 36
- 1970 36
- 2001 36
- 1967 35
- 1975 35
- 2002 35
- 1948 34
- 1933 34
- 1962 34
- 1971 34
- 1954 34
- 1896 33
- 1961 33
- 1929 33
- 1913 33
- 1959 33
- 1964 32
- 1953 32
- 1927 32
- 1909 31
- 1916 31
- 1999 31
- 1984 31
- 1894 30
- 1921 30
- 1922 29
- 1911 29
- 1955 27
- 1899 27
- 2011 27
- 1920 26
- 1908 23
- 2008 23
- 1917 18