YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.13 | 30.93 | 32.42 | 37.49 | i | |||
1960 | 23.90 | 27.76 | 32.35 | 52.27 | 63.48 | 72.73 | 77.97 | 76.84 | 67.80 | 56.55 | 42.87 | 25.81 | 51.69 | |||||||||||||
1961 | 22.81 | 33.96 | 39.42 | 48.67 | 63.58 | 75.77 | 77.16 | 77.48 | 66.83 | 58.06 | 40.07 | 25.39 | 52.43 | |||||||||||||
1962 | 18.90 | 22.68 | 38.13 | 51.63 | 68.45 | 73.35 | g | 74.84 | 75.45 | 63.43 | 57.06 | 39.90 | 25.29 | 48.71 | a | |||||||||||
1963 | 13.13 | a | 20.50 | 40.03 | 57.47 | 64.00 | 79.22 | c | 80.77 | 74.39 | 68.12 | d | 67.70 | a | 45.37 | 21.87 | 52.71 | |||||||||
1964 | 29.48 | 30.76 | 35.03 | 53.27 | 70.77 | 75.27 | 80.84 | 71.19 | 64.30 | 55.77 | 43.80 | 23.65 | 52.84 | |||||||||||||
1965 | 21.29 | 24.36 | 31.00 | 47.17 | 69.52 | 72.52 | e | 75.55 | 74.86 | c | 61.10 | 56.90 | 39.37 | 31.13 | 50.40 | |||||||||||
1966 | 19.94 | 27.46 | 40.52 | 48.37 | 62.19 | 78.33 | 83.61 | 74.89 | d | 67.77 | 55.65 | 36.63 | 27.26 | 51.88 | ||||||||||||
1967 | 25.55 | 21.25 | 38.77 | 52.73 | 60.90 | 74.21 | b | 75.74 | 73.52 | 68.33 | 52.42 | 34.83 | 27.87 | 50.51 | ||||||||||||
1968 | 22.52 | 25.72 | 45.94 | 55.97 | 62.03 | 72.30 | 76.94 | 76.10 | 66.23 | 57.35 | 38.50 | 25.52 | 52.09 | |||||||||||||
1969 | 22.81 | 28.54 | b | 35.45 | 55.23 | 67.10 | 65.00 | 76.87 | 82.03 | 67.43 | 50.00 | 38.23 | 27.10 | 51.32 | ||||||||||||
1970 | 18.23 | 26.75 | 34.71 | 53.73 | 63.58 | 76.87 | 80.81 | 78.13 | 65.53 | 56.13 | 37.63 | 26.35 | 51.54 | |||||||||||||
1971 | 17.58 | 26.18 | 33.97 | 53.50 | 63.52 | 77.97 | 75.32 | c | 74.65 | 67.03 | 60.52 | 39.13 | 28.29 | 51.47 | ||||||||||||
1972 | 20.03 | 22.74 | b | 33.68 | 47.77 | 71.90 | 74.63 | 76.45 | 75.26 | 64.87 | 51.23 | 36.13 | 22.45 | 49.76 | ||||||||||||
1973 | 27.94 | 27.96 | 44.55 | 50.86 | h | 65.69 | r | 73.70 | 78.06 | 76.77 | 66.17 | 61.65 | 37.87 | 24.81 | 51.95 | b | ||||||||||
1974 | 21.35 | 23.14 | 34.29 | 51.87 | 61.00 | 71.03 | a | 80.71 | 75.13 | 61.27 | 53.45 | 40.79 | a | 30.39 | 50.37 | |||||||||||
1975 | 25.52 | 26.82 | 33.06 | 45.63 | 70.45 | 72.03 | 79.68 | 76.45 | 62.27 | 58.77 | 46.33 | 27.29 | c | 52.03 | ||||||||||||
1976 | 18.74 | 30.93 | a | 34.84 | 55.80 | 63.06 | 78.50 | b | 80.17 | a | 76.97 | 67.69 | a | 51.03 | 34.47 | 20.17 | b | 51.03 | ||||||||
1977 | 13.23 | 27.36 | 42.17 | a | 57.50 | 75.97 | 72.23 | 80.86 | b | 71.29 | c | 63.00 | a | 56.55 | 39.96 | b | 23.86 | c | 52.00 | |||||||
1978 | 19.35 | 23.36 | 36.90 | b | 47.00 | 68.35 | 72.83 | 74.56 | d | 76.37 | d | 67.78 | c | 53.23 | 39.48 | a | 23.16 | 50.20 | ||||||||
1979 | 12.87 | a | 18.82 | 34.84 | 47.97 | 59.52 | 71.83 | 78.67 | d | 72.83 | h | 68.63 | 50.28 | b | 37.00 | 32.97 | 46.67 | a | ||||||||
1980 | 22.65 | 23.77 | c | 32.48 | 53.37 | 70.71 | 70.63 | 79.48 | f | 76.04 | c | 65.07 | 50.06 | 40.14 | b | 24.50 | k | 50.49 | b | |||||||
1981 | 25.50 | e | 30.75 | 40.68 | 52.27 | 65.32 | 72.00 | a | 77.29 | 75.84 | 65.50 | 50.16 | 44.67 | 27.97 | a | 52.33 | ||||||||||
1982 | 15.43 | a | 24.54 | 33.65 | 48.79 | b | 70.70 | a | 64.57 | 77.52 | 73.52 | 63.00 | 55.48 | 37.97 | 30.93 | a | 49.67 | |||||||||
1983 | 25.10 | 31.68 | 35.97 | 47.00 | 58.06 | 74.27 | 82.87 | 79.23 | a | 68.80 | 55.60 | a | 40.47 | 16.32 | 51.28 | |||||||||||
1984 | 17.87 | a | 34.36 | a | 31.03 | a | 53.83 | 61.13 | a | 74.93 | 77.77 | 77.94 | 64.03 | a | 56.23 | 40.67 | 27.60 | a | 51.45 | |||||||
1985 | 20.16 | 23.21 | 41.35 | 54.57 | 69.06 | 69.70 | 77.00 | 72.65 | 66.90 | 56.48 | 33.53 | 17.40 | a | 50.17 | ||||||||||||
1986 | 20.86 | j | 27.37 | i | 41.05 | i | 56.96 | b | 69.65 | 72.58 | f | 78.48 | h | 74.24 | j | 64.95 | i | 62.62 | r | 34.59 | m | 29.74 | l | 63.30 | j | |
1987 | 29.05 | l | 35.95 | i | 44.22 | h | 60.78 | c | 68.70 | d | 78.18 | h | 80.86 | j | 75.05 | k | 68.78 | g | 50.35 | h | 42.17 | g | 31.75 | o | 64.74 | j |
1988 | 18.16 | l | 23.38 | h | 37.68 | i | 54.50 | b | 73.40 | a | 80.72 | a | 82.26 | 78.92 | g | 69.00 | i | 49.65 | k | 39.18 | m | 29.46 | r | 72.72 | h | |
1989 | 28.70 | k | 23.29 | k | 34.96 | h | 52.69 | d | 65.43 | a | 74.24 | i | 82.94 | n | 78.27 | i | 70.41 | h | 59.43 | a | 36.21 | k | 17.69 | r | 59.19 | i |
1990 | 34.52 | j | 30.94 | j | 43.08 | g | 56.13 | 62.50 | g | 75.35 | j | 78.38 | j | 76.71 | j | 72.57 | p | 54.38 | j | 47.50 | n | 34.45 | t | 56.13 | k | |
1991 | 19.05 | i | 32.65 | k | 40.50 | k | 56.68 | b | 69.64 | f | 80.11 | k | 77.72 | m | 80.90 | j | 64.65 | j | 58.42 | l | 37.67 | r | 24.56 | o | 56.68 | k |
1992 | 29.19 | j | 31.35 | i | 37.18 | i | 48.96 | g | 69.12 | e | 74.29 | i | 73.74 | l | 75.53 | n | 65.72 | l | 56.32 | l | 37.18 | s | ----- | z | 69.12 | k |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.97 | 58.53 | 51.61 | 35.30 | 27.03 | 49.49 | g | |||||
1994 | 11.71 | 20.79 | 39.67 | a | 50.07 | c | 62.42 | 67.43 | b | 65.52 | 67.60 | a | 66.13 | 57.39 | 42.62 | a | 35.97 | a | 48.94 | |||||||
1995 | 23.77 | 24.68 | 40.16 | 44.50 | b | 64.29 | 77.33 | 76.10 | a | 75.42 | 64.17 | 53.33 | a | 30.17 | 22.00 | b | 49.66 | |||||||||
1996 | 19.77 | 23.72 | 31.23 | 45.17 | 62.97 | 70.40 | 70.25 | k | 73.23 | ----- | z | ----- | z | 33.86 | b | 24.89 | c | 42.80 | c | |||||||
1997 | 20.68 | 28.19 | b | 33.65 | 50.79 | a | 60.23 | 73.67 | 74.39 | 70.00 | 65.13 | 55.33 | a | 38.00 | 33.53 | a | 50.30 | |||||||||
1998 | 26.14 | b | 38.00 | b | 37.45 | 58.70 | 71.69 | b | 72.87 | 77.52 | 78.23 | 72.80 | 60.20 | a | 42.57 | 31.48 | 55.64 | |||||||||
1999 | 20.16 | 31.73 | b | 41.23 | a | 57.73 | 67.77 | 75.62 | a | 79.26 | 71.61 | 66.53 | 54.68 | i | 49.17 | a | 29.45 | b | 53.66 | a | ||||||
2000 | 22.97 | 32.69 | 46.76 | b | 52.00 | 67.77 | 69.57 | 73.00 | 73.23 | a | 64.47 | 58.32 | 36.66 | a | 18.59 | b | 51.34 | |||||||||
2001 | 28.74 | 22.96 | a | 37.07 | b | 56.76 | a | 64.84 | 71.76 | a | 75.00 | 75.32 | 64.07 | 53.19 | 49.40 | 33.20 | a | 52.69 | ||||||||
2002 | 30.10 | a | 33.86 | 32.62 | b | 50.14 | a | 60.58 | 72.80 | 79.13 | 74.23 | 67.03 | 47.84 | 36.97 | 30.23 | a | 51.29 | |||||||||
2003 | 20.37 | a | 22.68 | 38.77 | a | 51.33 | 64.65 | 72.03 | 76.71 | 75.32 | 65.47 | 57.61 | 38.03 | 30.74 | 51.14 | |||||||||||
2004 | 16.97 | 30.55 | 36.87 | 51.72 | a | 61.23 | a | 71.00 | 73.16 | 69.35 | 71.33 | 58.42 | 42.67 | 26.57 | a | 50.82 | ||||||||||
2005 | 20.90 | b | 32.25 | 36.65 | 59.53 | 62.29 | 76.50 | 78.23 | 75.23 | 72.20 | 58.77 | a | 39.70 | 24.97 | 53.10 | |||||||||||
2006 | 31.13 | 25.11 | 38.39 | 59.03 | 65.30 | a | 73.53 | 81.41 | d | 76.26 | 64.53 | 51.68 | c | 43.52 | a | 32.69 | b | 53.55 | ||||||||
2007 | 26.47 | a | 19.88 | b | 42.39 | 52.50 | 68.90 | 78.57 | b | 77.65 | 78.48 | b | 72.56 | e | 59.70 | d | 39.07 | b | 25.37 | d | 53.46 | |||||
2008 | 22.22 | d | 25.48 | d | 36.04 | d | 52.17 | a | 64.17 | a | 72.03 | a | 76.80 | a | 77.77 | 69.31 | a | 55.03 | a | 38.32 | b | 21.55 | 50.91 | |||
2009 | 18.08 | f | 29.65 | b | 40.17 | b | 51.04 | c | 65.50 | g | 70.52 | c | 73.90 | a | 75.46 | c | 73.32 | b | 46.04 | h | 46.93 | a | 23.54 | c | 53.84 | c |
2010 | 24.50 | e | 30.32 | c | 49.20 | a | 63.16 | e | 73.75 | c | 72.12 | e | 80.83 | b | 79.85 | d | 66.11 | l | 61.70 | d | 41.88 | f | 22.81 | d | 55.82 | b |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.63 | 26.93 | 37.51 | 52.86 | 65.95 | 73.29 | 77.59 | 75.22 | 66.34 | 55.65 | 39.54 | 26.54 | 51.49 | |||||||||||||
S.D. | 4.68 | 4.49 | 4.35 | 4.28 | 4.29 | 3.48 | 3.25 | 2.81 | 3.21 | 4.03 | 4.27 | 4.48 | 1.34 | |||||||||||||
SKEW | -0.10 | 0.31 | 0.64 | 0.10 | 0.31 | -0.18 | -0.98 | -0.40 | 0.20 | 0.30 | 0.26 | -0.12 | 0.70 | |||||||||||||
MAX | 31.13 | 38.00 | 49.20 | 63.16 | 75.97 | 80.72 | 83.61 | 82.03 | 73.32 | 67.70 | 49.40 | 35.97 | 55.64 | |||||||||||||
MIN | 11.71 | 18.82 | 31.00 | 44.50 | 58.06 | 64.57 | 65.52 | 67.60 | 58.53 | 47.84 | 30.17 | 16.32 | 48.94 | |||||||||||||
YRS | 42 | 43 | 43 | 48 | 46 | 43 | 42 | 43 | 42 | 43 | 44 | 44 | 35 |