YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1949 | ----- | z | 42.79 | d | 50.08 | 56.65 | 66.71 | 74.80 | 79.13 | 76.21 | 69.73 | 59.98 | 54.30 | 40.47 | 60.99 | a | ||||||||||
1950 | 41.66 | 48.30 | 49.73 | 59.05 | 67.73 | 76.12 | 74.73 | 74.48 | 68.12 | 66.37 | 47.48 | 40.79 | 59.55 | |||||||||||||
1951 | 38.34 | 43.36 | 48.35 | 56.57 | 66.10 | 72.83 | 80.94 | 80.40 | 70.90 | 60.10 | 44.62 | 40.32 | 58.57 | |||||||||||||
1952 | 44.11 | 44.74 | 46.56 | 56.63 | 66.87 | 80.43 | 79.13 | 81.06 | 70.92 | 58.81 | 44.42 | 38.58 | 59.36 | |||||||||||||
1953 | 47.00 | 43.39 | 54.74 | 57.03 | 67.19 | 83.30 | 80.58 | 77.76 | 73.58 | 61.89 | 49.63 | 39.00 | 61.26 | |||||||||||||
1954 | 41.58 | 51.86 | 47.50 | 63.37 | 62.55 | 77.12 | 83.45 | 79.95 | 75.68 | 62.69 | 51.98 | 44.02 | 61.81 | |||||||||||||
1955 | 40.19 | 40.14 | 50.50 | 61.20 | 68.58 | 73.43 | 79.13 | 78.84 | 73.17 | 62.16 | 46.32 | 42.92 | 59.72 | |||||||||||||
1956 | 39.94 | 38.00 | 51.76 | 57.25 | 72.35 | 79.75 | 79.68 | 79.08 | 75.25 | 64.87 | 46.87 | 44.11 | 60.74 | |||||||||||||
1957 | 38.16 | 48.23 | 47.37 | 55.40 | 61.77 | 73.87 | 81.95 | 79.02 | 68.07 | 57.37 | 43.42 | 45.98 | 58.38 | |||||||||||||
1958 | 38.90 | 40.12 | 39.03 | 54.23 | 68.74 | 77.70 | 78.35 | 79.68 | 72.22 | 60.35 | 49.60 | 39.92 | 58.24 | |||||||||||||
1959 | 35.02 | 42.36 | 49.16 | 57.57 | 68.74 | 76.85 | 76.85 | 79.29 | 71.52 | 56.73 | 45.13 | 41.71 | 58.41 | |||||||||||||
1960 | 34.00 | 34.09 | 45.08 | 61.07 | 66.74 | 77.00 | 76.53 | 78.02 | 71.63 | 60.35 | 48.85 | 37.66 | 57.59 | |||||||||||||
1961 | 37.19 | 42.39 | 48.68 | 57.93 | 67.90 | 73.83 | 77.58 | 77.26 | 68.93 | 61.52 | 43.10 | 37.84 | 57.85 | |||||||||||||
1962 | 33.56 | 47.48 | 48.32 | 58.87 | 72.55 | 73.60 | 78.95 | 78.92 | 71.53 | 63.67 | a | 49.92 | 43.19 | 60.05 | ||||||||||||
1963 | 30.65 | 45.38 | 52.71 | 64.28 | 71.21 | 75.98 | 82.97 | 79.76 | 74.40 | 68.23 | 51.40 | 34.63 | a | 60.97 | ||||||||||||
1964 | 40.39 | 34.53 | 47.23 | 60.31 | a | 70.39 | 76.08 | 82.29 | 79.68 | 71.22 | 62.26 | 48.62 | 40.65 | 59.47 | ||||||||||||
1965 | 42.73 | 40.93 | 41.29 | 61.98 | 68.63 | 74.20 | 80.85 | 78.74 | 71.10 | a | 61.39 | 54.57 | 44.81 | 60.10 | ||||||||||||
1966 | 31.81 | 37.64 | 53.40 | 58.10 | 69.71 | 75.97 | 84.77 | 75.34 | 69.62 | 60.26 | 53.23 | 38.18 | 59.00 | |||||||||||||
1967 | 43.10 | 42.55 | 56.40 | 63.60 | 64.74 | 75.08 | 78.52 | 76.79 | 69.63 | 63.44 | 48.23 | 38.11 | 60.02 | |||||||||||||
1968 | 40.35 | a | 39.71 | 51.68 | 57.07 | 64.21 | 76.63 | 78.39 | 77.44 | 71.62 | 64.34 | 46.27 | 37.52 | 58.77 | ||||||||||||
1969 | 42.83 | a | 42.07 | 39.77 | 60.52 | 67.75 | a | 74.37 | 83.69 | 81.48 | 71.34 | a | 55.42 | 48.22 | 40.29 | 58.98 | ||||||||||
1970 | 35.39 | 45.82 | 43.39 | 56.77 | 70.85 | 76.02 | 81.57 | a | 80.60 | 72.28 | 56.60 | 48.42 | 44.56 | 59.35 | ||||||||||||
1971 | 38.56 | 40.46 | 50.76 | 58.38 | 67.10 | 77.65 | 79.84 | 74.77 | 69.23 | 60.42 | 47.50 | 39.94 | 58.72 | |||||||||||||
1972 | 37.60 | 44.95 | 55.24 | 62.78 | 65.84 | 75.98 | 77.27 | 76.19 | 72.17 | 60.58 | 39.22 | 35.35 | 58.60 | |||||||||||||
1973 | 33.98 | 41.38 | 48.73 | 51.97 | 64.06 | 75.23 | 78.19 | 79.37 | 70.05 | 63.90 | 51.23 | 39.87 | 58.16 | |||||||||||||
1974 | 36.37 | 45.20 | 54.73 | 61.40 | 72.76 | 75.95 | 81.32 | 74.97 | 65.08 | 60.53 | 47.02 | 37.39 | 59.39 | |||||||||||||
1975 | 39.34 | 36.57 | 47.40 | 56.75 | 66.10 | 74.65 | 76.32 | 78.24 | 67.68 | 62.81 | 46.93 | 42.56 | 57.95 | |||||||||||||
1976 | 38.29 | 49.66 | 49.82 | 59.40 | 62.48 | 74.92 | 77.02 | 78.22 | a | 69.63 | 54.31 | 43.20 | 39.73 | 58.06 | ||||||||||||
1977 | 30.50 | 45.79 | 50.56 | 58.95 | 67.92 | 78.32 | 81.29 | 77.95 | 73.98 | 62.31 | 49.07 | 41.84 | 59.87 | |||||||||||||
1978 | 30.00 | 30.29 | 49.42 | 61.68 | 65.68 | 76.48 | 82.79 | 77.71 | 72.10 | 61.15 | 47.52 | 35.23 | 57.50 | |||||||||||||
1979 | 26.06 | 40.66 | 49.26 | 56.98 | 64.08 | 73.10 | 79.03 | 75.79 | 71.85 | 64.21 | 42.57 | 41.29 | 57.07 | |||||||||||||
1980 | 36.58 | 40.57 | 47.00 | 55.83 | 64.18 | a | 80.80 | 85.83 | a | 80.60 | 73.90 | 60.06 | 45.78 | 43.98 | 59.59 | |||||||||||
1981 | 40.20 | a | 45.54 | a | 49.05 | 63.82 | 65.34 | 79.59 | a | 81.31 | 76.34 | 71.27 | 59.23 | 50.62 | 41.69 | 60.33 | ||||||||||
1982 | 39.39 | 37.18 | 49.70 | a | 57.10 | 65.47 | 70.90 | 78.94 | 79.44 | 72.77 | 59.66 | 45.85 | 38.21 | 57.88 | ||||||||||||
1983 | 36.45 | 38.09 | a | 46.52 | 52.41 | a | 62.44 | 71.69 | a | 80.90 | 82.17 | a | 74.67 | a | 62.12 | b | 49.83 | 25.02 | b | 56.86 | ||||||
1984 | 34.33 | a | 43.91 | a | 45.28 | a | 52.38 | 67.02 | 75.37 | 78.48 | 77.20 | a | 68.52 | 57.25 | a | 47.10 | 40.25 | a | 57.26 | |||||||
1985 | 32.02 | 38.11 | 50.47 | a | 59.93 | 68.03 | 74.83 | 80.56 | 79.58 | 69.85 | 57.90 | 44.18 | 34.98 | 57.54 | ||||||||||||
1986 | 44.58 | a | 41.66 | 53.95 | 61.48 | 66.90 | 74.35 | 81.71 | 75.92 | 70.40 | 57.31 | 44.82 | 37.82 | 59.24 | ||||||||||||
1987 | 36.02 | a | 43.29 | 46.26 | 56.98 | 66.29 | 73.00 | 77.94 | 77.27 | 69.05 | 59.76 | 47.08 | 36.89 | 57.49 | ||||||||||||
1988 | 32.81 | 39.83 | 46.45 | 55.67 | a | 64.97 | a | 74.82 | 77.52 | 78.06 | 68.92 | 59.95 | a | 49.85 | 40.66 | 57.46 | ||||||||||
1989 | 41.42 | 32.00 | a | 52.74 | 61.05 | 67.95 | a | 70.68 | 77.19 | 76.23 | 67.32 | 62.00 | 50.52 | 32.62 | a | 57.64 | ||||||||||
1990 | 39.76 | 41.66 | 47.77 | 57.18 | 64.29 | 81.38 | 76.68 | 77.16 | 72.83 | 59.77 | 50.58 | 34.39 | 58.62 | |||||||||||||
1991 | 32.98 | a | 47.52 | 51.74 | 59.68 | 68.45 | 74.27 | 77.32 | 75.94 | 68.00 | 60.03 | a | 42.48 | 38.89 | 58.11 | |||||||||||
1992 | 38.44 | 45.41 | 52.05 | 59.32 | 64.06 | 69.83 | 77.45 | 73.39 | 70.63 | 60.92 | 40.26 | a | 36.31 | 57.34 | ||||||||||||
1993 | 32.78 | a | 36.94 | a | 46.98 | 55.43 | 65.02 | 74.90 | 79.76 | 77.08 | a | 68.90 | 56.52 | 43.15 | 39.71 | 56.43 | ||||||||||
1994 | 38.10 | 38.68 | 50.21 | 58.52 | 66.13 | 80.22 | 77.87 | 78.23 | 70.38 | 59.35 | a | 47.45 | 42.89 | 59.00 | ||||||||||||
1995 | 39.75 | a | 46.05 | 48.76 | 55.20 | 61.78 | a | 71.50 | 78.61 | 79.65 | 69.67 | 61.08 | 50.47 | 38.79 | 58.44 | |||||||||||
1996 | 36.93 | a | 43.88 | 45.80 | a | 59.42 | 73.66 | 76.30 | 78.29 | 74.94 | 67.33 | 59.95 | 46.33 | 39.97 | 58.57 | |||||||||||
1997 | 36.23 | 39.39 | 52.02 | a | 50.75 | 65.20 | a | 73.08 | 79.76 | 77.11 | 73.74 | a | 59.62 | a | 43.43 | 34.82 | 57.10 | |||||||||
1998 | 40.24 | 42.43 | 44.10 | 54.63 | 71.48 | a | 79.05 | a | 82.68 | 78.63 | 77.05 | 61.60 | a | 50.33 | 39.16 | 60.12 | ||||||||||
1999 | 41.70 | a | 48.75 | 47.48 | 55.93 | 65.26 | 73.70 | 80.18 | 80.32 | 68.85 | 60.27 | a | 53.83 | 40.11 | 59.70 | |||||||||||
2000 | 40.58 | 49.10 | 49.39 | 59.97 | 71.21 | 72.83 | 81.05 | 83.66 | 76.72 | 61.44 | 40.95 | 31.97 | b | 59.90 | ||||||||||||
2001 | 33.23 | 40.11 | a | 46.23 | k | ----- | z | ----- | z | 82.90 | y | 86.89 | d | 80.95 | 71.07 | a | 59.72 | b | 50.97 | a | 41.35 | a | 58.04 | d | ||
2002 | 40.05 | 39.91 | f | 45.50 | m | ----- | z | 66.76 | h | 78.14 | e | 79.07 | h | 77.48 | g | 70.06 | c | 54.81 | d | 44.42 | e | 37.40 | b | 54.15 | f | |
2003 | 40.77 | e | 37.45 | g | 47.96 | g | 60.00 | j | 66.95 | k | 71.37 | d | 83.68 | f | 81.70 | h | 68.43 | i | 62.87 | h | 47.95 | a | 42.61 | 50.67 | h | |
2004 | 39.63 | a | 39.52 | a | 55.22 | a | 57.50 | 72.48 | b | 74.28 | a | 78.02 | 75.27 | 71.65 | 58.93 | a | 43.04 | c | 41.30 | c | 58.90 | |||||
2005 | 37.14 | c | 44.10 | h | 45.80 | f | 56.67 | j | 65.26 | j | 75.29 | b | 74.00 | e | 74.85 | k | 74.98 | 61.36 | c | 51.10 | d | 39.15 | 59.00 | e | ||
2006 | 46.85 | 42.36 | 51.40 | 65.88 | a | 72.05 | b | 79.08 | 82.68 | 78.40 | 67.23 | 60.80 | a | 49.28 | 38.37 | 61.20 | ||||||||||
2007 | 32.70 | a | 41.61 | a | 55.35 | 53.76 | a | 65.61 | 72.67 | 78.06 | 80.73 | 73.45 | a | 64.08 | 48.81 | a | 37.83 | a | 58.72 | |||||||
2008 | 39.24 | 43.38 | 50.50 | 59.37 | 68.73 | a | 79.73 | 79.20 | a | 77.00 | 69.02 | 60.47 | 50.17 | 40.32 | a | 59.76 | ||||||||||
2009 | 39.88 | a | 47.41 | 53.29 | 58.14 | b | 65.95 | b | 77.37 | 80.97 | a | 77.47 | 68.52 | 55.26 | 52.72 | c | 33.31 | b | 59.19 | |||||||
2010 | 36.48 | 34.91 | a | 50.00 | b | 60.05 | 66.87 | 80.27 | 79.27 | 81.19 | 76.80 | 63.45 | 48.61 | b | 41.74 | 59.97 | ||||||||||
2011 | 37.60 | a | 38.71 | 52.73 | a | 63.15 | 68.92 | a | 84.60 | 86.45 | 85.52 | 72.55 | 61.68 | 49.95 | 35.39 | 61.44 | ||||||||||
2012 | 43.44 | 42.64 | a | 59.42 | 64.55 | 72.27 | a | 80.52 | 83.90 | 80.66 | b | 72.53 | 59.74 | 53.33 | 41.53 | 62.88 | ||||||||||
2013 | 38.29 | 39.57 | 51.02 | 55.47 | 69.18 | 79.07 | i | 79.18 | 79.44 | 74.35 | 60.19 | 46.22 | 36.94 | 57.26 | a | |||||||||||
2014 | 38.81 | 39.02 | 49.29 | 59.93 | 69.22 | a | 77.42 | 77.87 | a | 79.34 | 70.77 | 63.60 | a | 49.12 | b | 42.15 | 59.71 | |||||||||
2015 | 39.73 | 42.91 | 53.35 | 61.50 | 63.55 | 76.32 | 80.12 | c | 78.92 | a | 77.23 | 63.98 | 51.62 | 43.61 | 61.07 | |||||||||||
2016 | 41.24 | 49.21 | 56.37 | 60.68 | 66.40 | 78.57 | 84.18 | 78.69 | 73.82 | 68.81 | 55.12 | a | 40.50 | 62.80 | ||||||||||||
2017 | 40.90 | 50.77 | 57.67 | a | 61.53 | 67.08 | 79.90 | 82.98 | 75.98 | 73.02 | 63.77 | 56.79 | a | 41.31 | 62.64 | |||||||||||
2018 | 42.53 | a | 45.38 | 54.66 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.95 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 38.08 | 42.21 | 49.82 | 58.58 | 67.25 | 76.06 | 79.95 | 78.36 | 71.35 | 60.82 | 48.01 | 39.31 | 59.15 | |||||||||||||
S.D. | 4.07 | 4.45 | 3.98 | 3.24 | 2.93 | 3.07 | 2.68 | 2.24 | 2.64 | 2.84 | 3.71 | 3.51 | 1.47 | |||||||||||||
SKEW | -0.40 | -0.18 | -0.23 | -0.08 | 0.28 | 0.41 | 0.48 | 0.38 | 0.26 | 0.16 | -0.08 | -1.08 | 0.59 | |||||||||||||
MAX | 47.00 | 51.86 | 59.42 | 65.88 | 73.66 | 84.60 | 86.89 | 85.52 | 77.23 | 68.81 | 56.79 | 45.98 | 62.88 | |||||||||||||
MIN | 26.06 | 30.29 | 39.03 | 50.75 | 61.77 | 69.83 | 74.00 | 73.39 | 65.08 | 54.31 | 39.22 | 25.02 | 56.43 | |||||||||||||
YRS | 69 | 67 | 65 | 65 | 65 | 67 | 67 | 66 | 68 | 68 | 69 | 69 | 63 |