YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 83.79 | l | 79.90 | 67.23 | 50.57 | 44.19 | 60.47 | h | ||||
1938 | ----- | z | ----- | z | ----- | z | ----- | z | 69.39 | ----- | z | 89.10 | 88.03 | b | ----- | z | ----- | z | ----- | z | 43.10 | 72.40 | h | |||
1939 | 40.84 | 37.21 | 51.19 | 65.03 | 72.77 | 73.03 | a | 88.52 | 90.39 | 79.20 | 62.16 | 54.53 | 45.26 | 63.35 | ||||||||||||
1940 | 39.55 | 44.38 | c | 54.39 | 59.33 | 74.61 | 84.48 | a | 87.30 | a | 89.71 | 77.04 | g | 62.94 | 40.90 | 43.45 | 61.91 | a | ||||||||
1941 | 42.13 | 46.93 | 58.60 | a | 61.66 | a | 66.73 | a | 72.23 | 88.13 | a | 83.16 | 65.79 | a | 59.61 | 51.70 | 42.32 | 61.58 | ||||||||
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 79.26 | g | 69.03 | a | 46.17 | 39.89 | d | 51.70 | i | |
1943 | 32.84 | 43.61 | 52.16 | ----- | z | ----- | z | 69.85 | j | 85.60 | a | 82.74 | 82.90 | 62.35 | 49.31 | a | ----- | z | 61.44 | d | ||||||
1944 | 37.14 | q | 42.34 | 47.58 | 60.38 | a | 70.61 | 73.63 | 85.68 | 85.84 | 81.28 | a | 71.76 | b | 43.00 | a | 37.92 | f | 66.21 | b | ||||||
1945 | 39.67 | a | 43.85 | a | 47.37 | a | 56.10 | 68.06 | 72.80 | 89.03 | 86.48 | 72.59 | a | 56.55 | k | 43.60 | 37.45 | 59.73 | a | |||||||
1946 | 39.42 | 40.56 | a | 51.06 | 63.50 | 69.23 | 72.57 | 84.60 | a | 87.26 | 70.60 | 59.97 | 45.40 | 44.33 | a | 60.71 | ||||||||||
1947 | 33.77 | a | 45.29 | 56.03 | b | 61.50 | 76.13 | 69.97 | 86.55 | ----- | z | 76.43 | 61.19 | 43.57 | 39.78 | v | 61.04 | b | ||||||||
1948 | ----- | z | 34.50 | k | ----- | z | ----- | z | 65.83 | b | 77.87 | 81.90 | 82.26 | 76.83 | 64.84 | 43.87 | 28.88 | f | 70.48 | e | ||||||
1949 | 21.06 | 38.36 | 52.00 | 66.30 | 72.35 | 77.80 | 86.77 | 89.13 | 79.90 | 58.58 | 56.93 | 38.48 | 61.47 | |||||||||||||
1950 | ----- | z | ----- | z | ----- | z | 59.12 | n | 66.61 | 73.30 | 86.26 | 87.32 | 78.37 | 64.32 | 49.17 | 44.23 | 68.70 | d | ||||||||
1951 | 35.58 | 43.14 | 45.97 | 64.72 | a | 70.35 | 75.17 | 90.00 | a | 85.74 | 81.63 | 58.84 | 46.30 | 35.39 | 61.07 | |||||||||||
1952 | 33.71 | 38.83 | 46.30 | a | 67.07 | 69.35 | 74.03 | 87.10 | 86.23 | 83.13 | 75.23 | 47.43 | 39.55 | 62.33 | ||||||||||||
1953 | 46.61 | 43.32 | 50.97 | 57.67 | 64.29 | 70.03 | 87.10 | 84.13 | 82.03 | 68.00 | 53.13 | 40.65 | 62.33 | |||||||||||||
1954 | 40.80 | a | 50.43 | 50.32 | 59.23 | 71.63 | a | 71.38 | a | 87.48 | 81.00 | n | 76.37 | 64.39 | 53.60 | 39.00 | 60.42 | a | ||||||||
1955 | 35.19 | 37.86 | 41.65 | 52.03 | 65.23 | 78.73 | 83.00 | 88.90 | a | 76.33 | 64.10 | b | 40.53 | 39.58 | 58.59 | |||||||||||
1956 | 38.06 | 35.17 | 48.48 | 63.63 | 70.65 | 75.10 | 88.74 | 84.81 | 79.60 | 60.19 | 47.14 | a | 42.17 | a | 61.15 | |||||||||||
1957 | 28.90 | a | 43.41 | a | 52.10 | a | 61.60 | 70.55 | 78.60 | 87.06 | 84.90 | 84.87 | 61.19 | 46.87 | 43.90 | 62.00 | ||||||||||
1958 | 42.29 | 49.93 | a | 50.87 | 56.53 | 79.23 | 79.43 | 89.32 | 91.48 | 78.00 | 71.29 | 48.21 | a | 45.48 | 65.17 | |||||||||||
1959 | 42.43 | a | 43.64 | 50.84 | 66.17 | 64.26 | 78.47 | 91.13 | 82.84 | 71.80 | 61.42 | 49.13 | 41.77 | 61.99 | ||||||||||||
1960 | 33.35 | 40.83 | 53.58 | 61.13 | 63.19 | 79.73 | 95.07 | a | 81.33 | a | 80.37 | 67.26 | 47.13 | 41.42 | 62.03 | |||||||||||
1961 | 43.03 | 46.19 | a | 50.58 | 58.93 | 68.26 | 84.33 | 92.06 | 94.45 | 72.83 | 63.48 | 46.63 | 38.26 | 63.25 | ||||||||||||
1962 | 34.42 | 41.69 | b | 48.29 | 66.87 | 62.79 | b | 77.97 | 86.47 | a | 83.80 | f | 80.79 | a | 61.40 | a | 51.29 | b | 42.45 | 59.49 | a | |||||
1963 | 34.03 | b | 54.46 | 52.19 | 55.52 | a | 71.50 | a | ----- | z | 84.87 | a | 86.90 | b | 84.28 | a | 67.58 | 50.37 | 38.48 | 61.83 | a | |||||
1964 | 36.77 | 40.41 | 45.19 | 57.03 | 67.87 | 74.17 | 87.71 | 81.21 | c | 74.00 | 68.33 | a | 49.40 | 37.74 | 59.99 | |||||||||||
1965 | 38.03 | 45.50 | 51.52 | 61.83 | 68.23 | 76.60 | 86.90 | 83.35 | 73.21 | a | 71.42 | ----- | z | 42.42 | 63.55 | a | ||||||||||
1966 | 38.83 | m | 41.96 | b | 52.11 | d | 58.48 | e | 70.81 | e | 71.75 | b | 87.62 | g | 86.12 | e | 82.58 | d | 63.81 | e | 48.29 | f | 42.63 | d | 63.36 | c |
1967 | 53.32 | 48.54 | b | 49.56 | d | 54.20 | j | 69.20 | f | 79.56 | l | 91.82 | i | 95.76 | b | 85.97 | 63.17 | a | 49.63 | c | 36.07 | d | 60.25 | d | ||
1968 | 38.56 | f | 47.00 | d | 56.46 | c | 57.58 | d | 66.65 | k | 82.06 | l | 93.46 | g | 80.21 | l | 78.18 | m | 63.75 | k | ----- | z | ----- | z | 53.68 | i |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 79.03 | 58.48 | 52.20 | 41.58 | 57.82 | h | ||||
1970 | 39.90 | 48.39 | 49.35 | 53.17 | 70.19 | 79.93 | 87.97 | 91.06 | 70.20 | 60.84 | 48.10 | 37.03 | 61.35 | |||||||||||||
1971 | 40.74 | 46.46 | 46.52 | 60.40 | 70.39 | 72.47 | 88.03 | 94.35 | 72.07 | 60.77 | 47.17 | 35.29 | 61.22 | |||||||||||||
1972 | 35.45 | 43.69 | 55.77 | 55.87 | 72.68 | 78.37 | 86.52 | 89.84 | 72.80 | 64.65 | 47.60 | 32.65 | 61.32 | |||||||||||||
1973 | 36.35 | 47.29 | 53.19 | 60.80 | 73.94 | 79.03 | 91.45 | 89.10 | 77.33 | 62.55 | 42.70 | 42.00 | 62.98 | |||||||||||||
1974 | 33.42 | 45.07 | 51.23 | 59.07 | 65.06 | 84.70 | 87.00 | 88.26 | 84.77 | 69.03 | 51.33 | 46.12 | w | 65.36 | a | |||||||||||
1975 | 38.28 | m | 40.53 | i | 49.03 | 53.73 | 68.13 | 75.33 | 89.61 | 82.52 | 84.03 | 61.39 | 46.47 | 42.19 | 65.24 | b | ||||||||||
1976 | 38.84 | 41.79 | 47.87 | 59.03 | 71.77 | 74.23 | 88.16 | 79.84 | 81.20 | 68.03 | 53.20 | 43.48 | 62.29 | |||||||||||||
1977 | 34.29 | 50.57 | 47.87 | 68.83 | 63.84 | 83.37 | 87.42 | 90.48 | 73.53 | 65.23 | 45.60 | 41.87 | 62.74 | |||||||||||||
1978 | 41.97 | 46.21 | 59.70 | a | 59.53 | 64.42 | 79.67 | 88.77 | 88.13 | 74.67 | 70.65 | 42.90 | 33.26 | 62.49 | ||||||||||||
1979 | 28.57 | a | 40.50 | 54.61 | 60.33 | 71.61 | 81.47 | 90.35 | 87.48 | 84.67 | 67.90 | 46.10 | 43.71 | 63.11 | ||||||||||||
1980 | 37.19 | 47.00 | a | 49.61 | 64.37 | 69.68 | 73.47 | 85.81 | 83.71 | 79.73 | 66.67 | a | 49.27 | 44.68 | 62.60 | |||||||||||
1981 | 43.19 | 47.43 | 57.23 | 61.17 | 68.48 | 75.90 | 86.84 | 94.06 | 79.50 | d | 62.13 | 52.57 | 41.48 | 64.17 | ||||||||||||
1982 | 35.97 | a | 39.68 | 50.50 | g | 58.33 | 69.61 | 81.70 | 85.03 | 88.26 | 75.20 | 62.13 | 44.50 | b | 39.13 | 61.78 | a | |||||||||
1983 | 43.13 | 48.21 | 54.29 | 60.57 | b | 73.00 | 76.90 | 82.69 | b | 89.53 | a | 74.19 | c | 66.94 | 48.07 | 30.94 | 62.37 | |||||||||
1984 | 35.13 | 39.62 | 52.87 | 56.91 | g | 65.52 | 74.07 | 88.03 | a | 88.00 | 74.37 | 59.29 | 46.73 | 33.32 | 59.72 | a | ||||||||||
1985 | 31.55 | 36.50 | 49.61 | 65.00 | 72.16 | 80.47 | 92.77 | a | 83.74 | 68.83 | 61.06 | 35.20 | 30.70 | a | 58.97 | |||||||||||
1986 | 42.03 | 46.64 | 58.81 | 61.54 | b | 70.97 | 84.20 | 83.03 | 92.23 | 70.37 | 69.00 | e | 46.23 | 38.90 | b | 63.66 | ||||||||||
1987 | 36.00 | 47.64 | 54.68 | 71.40 | 74.00 | 82.17 | 84.10 | 88.29 | 86.90 | 74.81 | 50.67 | 39.55 | 65.85 | |||||||||||||
1988 | 36.42 | 47.54 | a | 54.81 | 66.00 | 70.80 | a | 77.97 | 88.72 | b | 90.10 | 81.63 | 76.97 | a | 46.73 | 37.52 | 64.60 | |||||||||
1989 | 34.97 | 34.07 | 50.23 | 65.83 | 70.90 | 82.13 | 89.48 | 82.94 | 79.97 | 62.29 | 50.31 | a | 43.94 | 62.25 | ||||||||||||
1990 | 40.81 | 43.57 | 56.16 | 66.10 | 64.90 | 74.03 | 87.61 | 84.48 | 85.17 | 59.74 | 49.83 | a | 30.16 | 61.88 | ||||||||||||
1991 | 36.32 | 50.89 | 49.42 | 57.40 | 63.00 | 70.27 | 85.42 | 88.16 | 81.47 | 66.83 | a | 44.93 | 42.48 | 61.38 | ||||||||||||
1992 | 42.57 | a | 52.62 | 61.48 | 63.70 | 75.81 | 81.50 | 81.30 | a | 86.68 | 76.07 | 67.55 | 43.53 | 34.83 | a | 63.97 | ||||||||||
1993 | 31.93 | a | 36.50 | 49.00 | 56.50 | 73.61 | 71.93 | 73.94 | 79.93 | a | 78.87 | 66.19 | 45.23 | 42.23 | 58.82 | |||||||||||
1994 | 44.52 | 42.54 | 57.55 | 62.23 | 70.71 | 75.17 | 88.45 | 88.23 | 82.23 | 62.39 | 40.00 | 38.74 | 62.73 | |||||||||||||
1995 | 40.48 | 50.11 | 52.48 | 58.13 | 67.68 | 73.27 | 83.68 | 81.42 | 80.33 | 59.00 | a | 50.73 | 41.10 | 61.53 | ||||||||||||
1996 | 40.58 | 42.28 | 53.19 | 59.93 | 62.74 | 76.13 | 88.00 | 85.39 | 73.13 | 63.67 | a | 50.03 | a | 40.77 | 61.32 | |||||||||||
1997 | 40.00 | 45.18 | 51.81 | 56.73 | 71.94 | 74.07 | 81.13 | 87.45 | 78.50 | b | 62.32 | 50.03 | 39.84 | 61.58 | ||||||||||||
1998 | 42.10 | 46.25 | 52.29 | 59.90 | 66.40 | a | 74.57 | 89.00 | 89.03 | 81.21 | b | 61.43 | a | 47.10 | 36.61 | 62.16 | ||||||||||
1999 | 42.16 | 41.57 | 51.52 | 57.33 | 67.16 | 74.75 | b | 83.48 | b | 87.73 | a | 78.27 | 66.58 | 54.68 | b | 37.42 | 61.89 | |||||||||
2000 | 39.06 | 47.17 | 52.28 | f | 65.90 | 67.77 | 78.13 | 85.39 | 86.97 | 73.77 | 59.35 | e | 40.83 | 37.26 | 61.96 | a | ||||||||||
2001 | 35.26 | 41.39 | 54.55 | 57.20 | 73.77 | 75.40 | 84.23 | 90.71 | 82.23 | ----- | z | ----- | z | ----- | z | 66.08 | c | |||||||||
2002 | ----- | z | ----- | z | 46.75 | c | 59.03 | 65.80 | a | 77.30 | 88.77 | a | 81.61 | 77.57 | 60.84 | 51.34 | a | 42.45 | b | 65.15 | b | |||||
2003 | 44.45 | 44.11 | 52.10 | a | 56.47 | ----- | z | 80.17 | 92.03 | 89.32 | 80.00 | 68.83 | a | 43.10 | 40.71 | 62.84 | a | |||||||||
2004 | 34.94 | 42.14 | 57.03 | 64.00 | 65.16 | 76.77 | 88.97 | 86.26 | 72.90 | 64.55 | 48.10 | a | 42.58 | 61.95 | ||||||||||||
2005 | 40.19 | 48.18 | 55.32 | 60.00 | 68.48 | 72.80 | 87.94 | 88.61 | 76.17 | 64.26 | 46.23 | 34.29 | 61.87 | |||||||||||||
2006 | 41.77 | a | 43.29 | 48.74 | 59.40 | e | 70.53 | l | 74.64 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.30 | h | ||
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.86 | j | ----- | z |
2009 | 37.71 | g | 43.00 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 38.10 | 44.14 | 51.84 | 60.73 | 69.24 | 76.67 | 87.06 | 87.01 | 78.07 | 64.61 | 47.58 | 39.75 | 62.09 | |||||||||||||
S.D. | 5.00 | 4.32 | 3.84 | 4.01 | 3.66 | 3.90 | 3.23 | 3.64 | 4.68 | 4.29 | 4.01 | 3.79 | 1.48 | |||||||||||||
SKEW | -0.31 | -0.10 | 0.14 | 0.29 | 0.15 | 0.34 | -0.93 | 0.11 | -0.31 | 0.78 | -0.32 | -0.75 | -0.02 | |||||||||||||
MAX | 53.32 | 54.46 | 61.48 | 71.40 | 79.23 | 84.70 | 95.07 | 95.76 | 86.90 | 76.97 | 56.93 | 45.48 | 65.85 | |||||||||||||
MIN | 21.06 | 34.07 | 41.65 | 52.03 | 62.74 | 69.97 | 73.94 | 79.84 | 65.79 | 58.48 | 35.20 | 30.16 | 58.59 | |||||||||||||
YRS | 59 | 62 | 62 | 61 | 62 | 61 | 63 | 62 | 65 | 65 | 64 | 62 | 43 |