Year Boulder Average Max Dillon Average Max Jan Jul Jan Jul 1951 40.4 85.8 31.4 76.1 1952 45.8 86.3 31.5 72.9 1953 53.1 85.8 39.9 75.8 1954 51.3 89.4 41.5 73.7 1955 40.3 87.8 32.0 75.2 1956 46.2 84.1 37.1 72.6 1957 36.9 85.2 31.2 71.9 1958 46.6 84.2 31.4 72.7 1959 43.1 85.6 32.4 73.7 1960 40.5 85.0 31.3 73.7 1961 46.3 84.2 34.0 73.7 1962 37.0 84.2 23.3 71.9 1963 34.8 88.9 22.1 76.7 1964 45.4 89.2 25.8 75.7 1965 47.8 84.1 30.7 71.3 1966 42.7 89.1 28.8 76.6 1967 47.3 83.3 30.3 73.2 1968 44.6 83.9 32.1 72.7 1969 47.3 87.0 33.5 75.2 1970 43.6 86.2 27.3 73.1 1971 45.5 85.1 28.8 72.7 1972 44.8 84.2 27.7 74.1 1973 39.7 83.3 28.5 69.7 1974 40.3 87.4 27.6 71.6 1975 44.0 86.1 29.1 72.6 1976 44.6 87.5 29.8 74.1 1977 40.8 87.2 29.8 74.6 1978 37.1 89.1 29.9 76.1 1979 31.3 86.7 21.9 75.4 1980 39.4 90.3 31.6 75.5 1981 49.2 86.9 40.0 72.7 1982 44.2 86.5 29.7 71.9 1983 46.2 87.7 35.1 73.4 1984 39.7 86.8 29.2 72.9 1985 36.9 85.7 29.1 72.6 1986 53.0 85.6 38.2 70.2 1987 43.9 88.0 31.0 73.5 1988 37.3 86.9 27.2 74.3 1989 48.4 87.7 31.5 75.5 1990 48.5 82.8 31.7 71.7