YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.45 | 58.63 | 50.39 | 47.92 | 39.08 | 52.49 | g | |||||
1942 | 39.37 | 38.61 | 42.79 | 46.05 | 52.76 | 63.05 | 72.27 | 70.50 | a | 63.57 | 55.69 | 48.95 | 44.03 | 53.14 | ||||||||||||
1943 | 40.08 | 41.70 | 45.84 | 51.42 | 59.06 | 58.85 | 68.56 | 68.94 | 67.52 | a | 56.47 | a | 46.75 | 37.95 | 53.59 | |||||||||||
1944 | 36.45 | 35.16 | 41.12 | b | 44.95 | 54.21 | 55.75 | 65.65 | 69.10 | 65.48 | 55.92 | 41.90 | 40.69 | 50.53 | ||||||||||||
1945 | 38.69 | 40.23 | 37.11 | 49.60 | 54.29 | 62.12 | 71.97 | 70.45 | 65.57 | 54.97 | 44.80 | 39.06 | 52.41 | |||||||||||||
1946 | 38.45 | 37.64 | 41.39 | 51.63 | 54.00 | 61.37 | 67.90 | 69.30 | a | 63.95 | 47.81 | 39.42 | 41.89 | 51.23 | ||||||||||||
1947 | 37.31 | 42.36 | 45.02 | 49.35 | 57.76 | 61.00 | a | 70.17 | a | 67.11 | 66.33 | a | 53.55 | a | 39.57 | 35.81 | 52.11 | |||||||||
1948 | 41.17 | a | 34.78 | 41.15 | a | 44.78 | 53.05 | a | ----- | z | 66.27 | 67.63 | 64.45 | 53.60 | 45.30 | 36.47 | 49.88 | a | ||||||||
1949 | 27.40 | 33.14 | 39.40 | 51.27 | 52.44 | 63.87 | 68.26 | 66.35 | 66.75 | 52.47 | 50.80 | 37.94 | 50.84 | |||||||||||||
1950 | 34.81 | 44.29 | 45.45 | a | 52.73 | 55.77 | a | 61.68 | 69.68 | 69.76 | 60.32 | 58.19 | 49.82 | 46.77 | 54.11 | |||||||||||
1951 | 39.15 | 40.93 | 44.84 | 47.87 | 53.95 | 60.85 | 69.97 | 66.95 | 66.17 | 50.84 | o | 42.90 | 35.87 | 51.77 | a | |||||||||||
1952 | 33.42 | a | 38.33 | 35.18 | 46.42 | 57.47 | 56.23 | 68.63 | 69.39 | 65.43 | 60.08 | 38.55 | 35.19 | 50.36 | ||||||||||||
1953 | 42.73 | 40.30 | 43.10 | 46.23 | 46.90 | 57.38 | 70.66 | 67.13 | 65.45 | 53.95 | 47.90 | a | 39.55 | 51.77 | ||||||||||||
1954 | 37.77 | 45.13 | a | 39.74 | 51.52 | 58.44 | 59.52 | 70.34 | 63.87 | 65.02 | 56.34 | 46.82 | 37.85 | 52.70 | ||||||||||||
1955 | 31.15 | 36.25 | 43.23 | 44.92 | 51.15 | 59.55 | a | 64.71 | 69.00 | 65.40 | a | 57.58 | 44.29 | a | 41.06 | 50.69 | ||||||||||
1956 | 42.38 | a | 36.60 | 46.02 | b | 44.76 | a | 52.65 | 63.05 | 66.24 | 65.27 | 68.02 | 51.73 | 45.17 | 40.23 | 51.84 | ||||||||||
1957 | 33.68 | 43.91 | 44.65 | a | 46.43 | 48.60 | 63.41 | a | 67.84 | 66.52 | 62.50 | 49.32 | 40.25 | 40.43 | a | 50.63 | ||||||||||
1958 | 39.39 | 42.50 | 37.06 | 46.45 | 56.74 | 59.75 | 65.77 | 69.52 | 65.42 | 58.10 | 43.93 | 45.18 | 52.48 | |||||||||||||
1959 | 41.52 | 36.02 | a | 46.92 | 52.02 | 50.40 | 63.78 | 71.50 | 66.38 | a | 61.28 | 57.94 | 45.97 | 40.18 | a | 52.83 | ||||||||||
1960 | 32.79 | 37.97 | 49.08 | a | 50.08 | 54.18 | 67.02 | 69.61 | 68.95 | 66.78 | 53.78 | a | 42.72 | 37.95 | 52.58 | |||||||||||
1961 | 40.40 | 42.39 | 43.76 | 49.63 | 50.21 | 64.78 | a | 70.87 | 67.73 | 60.82 | 53.95 | 41.66 | a | 36.53 | 51.89 | |||||||||||
1962 | ----- | z | 36.21 | 37.38 | a | 53.65 | 48.80 | a | 61.35 | 67.08 | 69.92 | 66.67 | 55.73 | 47.58 | 40.66 | 53.18 | a | |||||||||
1963 | 35.76 | 47.41 | 41.06 | 42.08 | 54.56 | 56.00 | 67.79 | 67.31 | 65.20 | 55.84 | 43.23 | 38.79 | 51.25 | |||||||||||||
1964 | 35.81 | 38.55 | 39.52 | 44.17 | 50.15 | 59.18 | 68.84 | 68.24 | 63.60 | 60.84 | 39.00 | 39.37 | 50.60 | |||||||||||||
1965 | 38.89 | 41.57 | 40.85 | 43.55 | 51.02 | 55.92 | 66.94 | 67.79 | 58.33 | 60.66 | 45.45 | 36.35 | 50.61 | |||||||||||||
1966 | 34.97 | 36.02 | 46.50 | 51.28 | a | 55.40 | 62.00 | 68.15 | 69.39 | 64.15 | 55.32 | 44.57 | 38.55 | 52.19 | ||||||||||||
1967 | 38.97 | 41.32 | 42.58 | 37.02 | 52.97 | 58.05 | 71.23 | 71.92 | 63.02 | 56.90 | 48.08 | 31.74 | 51.15 | |||||||||||||
1968 | 36.48 | 44.26 | 43.55 | 47.42 | 54.16 | 62.57 | 67.63 | 64.32 | 63.75 | 54.65 | 43.68 | 36.50 | 51.58 | |||||||||||||
1969 | 38.98 | a | 33.96 | e | 40.23 | 48.30 | 56.53 | 59.98 | 68.77 | 73.05 | 66.70 | 50.37 | 44.08 | 40.90 | a | 51.82 | ||||||||||
1970 | 39.74 | 42.32 | 42.44 | 43.79 | b | 58.23 | a | 63.64 | a | 72.74 | 72.26 | 62.62 | 51.79 | 45.55 | 35.45 | 52.55 | ||||||||||
1971 | 37.61 | 39.48 | 44.89 | 45.53 | 49.34 | 59.77 | 69.68 | 69.00 | b | 63.72 | a | 49.58 | 43.42 | 31.87 | a | 50.32 | ||||||||||
1972 | 35.42 | 41.31 | 51.08 | 46.87 | 52.57 | a | 61.02 | 72.35 | 67.69 | 60.80 | 48.73 | 39.10 | 33.60 | 50.88 | ||||||||||||
1973 | 32.94 | 36.70 | 36.79 | 46.48 | 58.71 | 65.85 | 68.45 | 67.53 | 62.23 | 53.13 | 41.72 | 40.02 | 50.88 | |||||||||||||
1974 | 34.74 | 38.52 | 41.94 | 47.65 | 55.69 | 66.52 | 68.31 | 66.97 | a | 67.08 | 52.52 | 43.40 | 36.37 | a | 51.64 | |||||||||||
1975 | 38.19 | 37.45 | 39.44 | 38.52 | 53.23 | 61.07 | 68.08 | 67.27 | 65.10 | 51.40 | 42.08 | 38.18 | 50.00 | |||||||||||||
1976 | 39.55 | 38.78 | 40.27 | a | 43.18 | 56.27 | 61.62 | 68.10 | 63.63 | 59.93 | 52.40 | 46.72 | a | 39.25 | a | 50.81 | ||||||||||
1977 | 35.55 | 41.00 | 37.34 | 50.20 | 45.92 | 64.10 | 69.21 | 69.45 | 62.58 | 56.74 | 47.03 | a | 44.27 | 51.95 | ||||||||||||
1978 | 38.94 | 38.61 | 45.08 | 43.90 | 55.06 | 65.10 | 69.34 | 67.50 | 61.23 | 57.44 | 39.72 | 33.05 | 51.25 | |||||||||||||
1979 | 33.10 | 35.55 | 39.65 | 47.50 | 55.44 | 65.78 | 68.98 | a | 65.87 | 67.42 | 54.52 | 41.35 | 40.48 | 51.30 | ||||||||||||
1980 | 39.73 | 41.47 | 39.53 | 47.70 | b | 47.81 | 60.63 | 71.73 | ----- | z | 63.48 | ----- | z | 46.41 | a | 43.47 | 50.20 | b | ||||||||
1981 | 40.34 | 40.07 | 40.42 | 50.68 | 53.85 | 68.36 | a | 69.05 | 71.81 | 63.97 | 49.11 | 45.52 | a | 41.81 | 52.92 | |||||||||||
1982 | 34.00 | 40.43 | a | 38.70 | a | 44.21 | d | 54.65 | e | 58.50 | b | 65.90 | 68.25 | c | 60.68 | b | 49.35 | g | 39.03 | 37.84 | b | 49.29 | a | |||
1983 | 38.56 | 39.37 | a | 39.57 | a | 39.78 | a | 54.28 | b | 59.12 | 66.89 | 67.40 | a | 64.36 | a | 51.98 | d | 42.48 | a | 40.00 | 50.32 | |||||
1984 | 40.19 | 40.00 | a | 45.56 | 47.20 | b | 61.84 | 61.50 | ----- | z | 69.25 | a | 66.04 | c | 49.37 | 40.45 | a | 33.65 | 50.46 | a | ||||||
1985 | 35.25 | a | 37.41 | 40.30 | c | ----- | z | 54.48 | a | 65.53 | a | 70.14 | c | 68.29 | 57.05 | a | 51.74 | b | 41.07 | b | 38.10 | 50.85 | a | |||
1986 | 42.25 | c | 40.41 | 45.73 | a | 48.28 | a | 55.90 | b | 65.04 | f | 66.21 | b | 71.87 | 55.75 | 50.10 | 45.48 | 38.87 | 50.99 | a | ||||||
1987 | 35.53 | a | 38.09 | a | 40.05 | a | 53.71 | d | 53.66 | 64.25 | 64.63 | 68.15 | 63.62 | a | 56.21 | b | 42.22 | 33.50 | c | 51.13 | ||||||
1988 | 36.83 | b | 40.78 | 45.61 | 47.93 | a | 54.40 | 61.53 | a | 69.15 | 67.24 | 63.76 | a | 60.18 | a | 44.15 | c | 35.89 | 52.29 | |||||||
1989 | 34.30 | a | 36.58 | c | 48.54 | d | 56.77 | 55.55 | 63.18 | 71.27 | 65.62 | a | 63.60 | 51.91 | b | 45.87 | 40.22 | a | 52.78 | |||||||
1990 | 36.66 | b | 34.82 | 42.97 | 49.61 | c | 52.74 | d | 64.30 | 69.90 | a | 66.60 | 64.42 | 57.55 | c | 44.39 | c | 33.15 | a | 51.43 | ||||||
1991 | 38.39 | 44.41 | a | 37.12 | e | 48.83 | c | 51.67 | b | 58.50 | 67.52 | b | 66.84 | b | 65.72 | 58.93 | d | 45.59 | b | 37.45 | a | 51.75 | ||||
1992 | 35.84 | b | 40.09 | 41.15 | a | 53.64 | a | 58.15 | a | 60.50 | a | 66.75 | a | 70.37 | 66.07 | 56.19 | b | 42.02 | 34.02 | 52.06 | ||||||
1993 | 35.70 | c | 36.15 | a | 45.95 | 51.80 | 57.25 | a | 61.98 | 64.65 | a | 67.76 | b | 64.00 | 53.32 | 42.86 | b | 37.42 | 51.57 | |||||||
1994 | 40.26 | 35.94 | a | 45.08 | a | 49.68 | b | 54.40 | a | 68.08 | 70.41 | b | 71.82 | ----- | z | 50.65 | a | 36.90 | 37.48 | 50.97 | a | |||||
1995 | 36.17 | b | 44.50 | a | 43.10 | b | 46.03 | a | 48.68 | 61.02 | b | 69.40 | 72.35 | a | 67.14 | e | 56.58 | 51.00 | a | 41.21 | 53.10 | |||||
1996 | 40.68 | a | 42.28 | b | 45.35 | a | 53.12 | 58.18 | 65.28 | 72.76 | 72.05 | b | 64.57 | a | 53.18 | 44.27 | 39.16 | c | 54.24 | |||||||
1997 | 37.00 | a | 39.78 | e | 49.35 | d | ----- | z | ----- | z | ----- | z | ----- | z | 70.53 | b | 65.31 | a | 53.25 | i | 48.40 | d | 37.69 | j | 51.73 | f |
1998 | 40.57 | i | 34.91 | l | 40.68 | a | 43.23 | f | 47.04 | f | 58.55 | b | 72.64 | b | 74.60 | b | 61.04 | c | 50.54 | c | 40.88 | b | 34.94 | 54.23 | d | |
1999 | 38.24 | 37.36 | 41.16 | 41.61 | b | 54.21 | b | 62.04 | b | 71.00 | d | 71.47 | a | 66.92 | d | 59.08 | a | 48.27 | b | 38.89 | d | 52.52 | ||||
2000 | 41.52 | b | 41.06 | c | 42.80 | h | 52.50 | b | 62.52 | a | 69.20 | c | 72.87 | a | 71.12 | e | 62.66 | b | 52.05 | a | 41.72 | c | 43.67 | e | 55.53 | a |
2001 | 36.17 | d | 36.04 | e | 46.53 | l | 46.35 | g | 65.93 | d | 68.75 | j | 69.35 | 72.09 | d | 63.96 | e | 56.45 | c | 44.40 | d | 34.52 | f | 55.55 | d | |
2002 | 37.41 | c | 37.48 | c | 40.32 | l | 46.91 | h | 54.96 | s | 66.72 | a | 72.83 | g | 68.50 | a | 63.72 | 49.97 | a | 45.27 | d | 34.90 | a | 50.50 | d | |
2003 | 42.36 | b | 37.11 | 41.58 | e | 41.66 | h | 57.84 | l | 63.93 | a | 70.60 | b | 69.79 | c | 66.33 | a | 59.33 | k | 37.65 | q | 35.13 | a | 53.35 | d | |
2004 | 35.17 | h | 35.50 | e | 46.77 | k | 49.67 | d | 56.86 | c | 62.56 | u | 70.10 | u | 69.31 | g | 61.46 | g | 48.87 | a | 37.48 | j | 33.75 | o | 47.72 | h |
2005 | 36.56 | d | 36.93 | f | 41.26 | b | 46.72 | g | 54.93 | b | 60.90 | d | 72.97 | a | 68.96 | d | 60.58 | e | 52.31 | b | 46.03 | 39.77 | 53.43 | b | ||
2006 | 37.32 | a | 39.75 | 32.85 | h | 42.65 | d | 59.33 | b | 66.58 | 71.89 | c | 67.06 | 62.48 | a | 50.32 | 46.46 | b | 36.27 | 52.74 | a | |||||
2007 | 34.56 | f | 37.98 | a | 44.91 | b | 49.85 | d | 56.86 | t | 64.50 | d | 72.61 | h | 71.93 | c | 61.80 | b | 52.48 | g | 47.64 | h | 35.25 | e | 52.32 | e |
2008 | 33.06 | d | 37.53 | n | 41.96 | e | 46.60 | j | 51.75 | o | 66.50 | v | ----- | z | 71.40 | p | 65.53 | m | 52.40 | u | 47.79 | p | 34.09 | t | 37.51 | j |
2009 | 37.28 | v | 40.22 | s | 42.87 | a | 45.38 | r | 59.08 | a | 57.62 | n | 71.52 | d | 68.22 | h | 65.83 | l | 48.36 | t | 46.42 | l | 35.73 | i | 57.82 | i |
2010 | 34.50 | j | 37.47 | i | 38.95 | u | 43.62 | e | 51.13 | h | 58.86 | w | 71.02 | j | 69.62 | s | ----- | z | ----- | z | ----- | z | ----- | z | 43.62 | k |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.37 | 39.25 | 42.41 | 47.63 | 54.49 | 62.09 | 69.16 | 68.73 | 63.82 | 54.05 | 44.10 | 38.24 | 51.76 | |||||||||||||
S.D. | 3.02 | 3.05 | 3.38 | 3.98 | 3.75 | 3.19 | 2.23 | 2.31 | 2.61 | 3.39 | 3.16 | 3.24 | 1.02 | |||||||||||||
SKEW | -0.53 | 0.32 | 0.22 | -0.30 | 0.21 | 0.06 | -0.14 | 0.17 | -0.84 | 0.15 | -0.02 | 0.23 | 0.44 | |||||||||||||
MAX | 42.73 | 47.41 | 51.08 | 56.77 | 65.93 | 69.20 | 72.97 | 74.60 | 68.02 | 60.84 | 51.00 | 46.77 | 54.24 | |||||||||||||
MIN | 27.40 | 33.14 | 35.18 | 37.02 | 45.92 | 55.75 | 64.63 | 63.63 | 55.75 | 47.81 | 36.90 | 31.74 | 50.00 | |||||||||||||
YRS | 63 | 64 | 63 | 60 | 62 | 61 | 62 | 65 | 65 | 61 | 64 | 64 | 47 |