YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 23.87 | e | 23.87 | k |
1942 | 17.22 | a | 20.48 | a | 29.19 | 42.57 | 49.34 | 57.32 | 62.13 | 60.52 | 54.15 | 45.00 | 34.22 | 22.57 | a | 41.22 | ||||||||||
1943 | 18.94 | 28.12 | ----- | z | 52.17 | r | 51.85 | 59.83 | 65.13 | 63.45 | 54.82 | 42.21 | 30.03 | 11.26 | 42.56 | b | ||||||||||
1944 | 8.92 | 16.00 | 28.07 | a | 39.47 | 50.76 | 59.64 | a | 63.06 | 61.32 | 54.19 | a | 44.68 | 29.62 | 17.16 | 39.41 | ||||||||||
1945 | 18.40 | 26.91 | 31.73 | a | 39.48 | 53.55 | 57.88 | a | 63.11 | 63.00 | 54.22 | 44.13 | 28.57 | 17.45 | 41.54 | |||||||||||
1946 | 16.83 | a | 22.86 | 34.95 | 48.10 | 50.84 | 62.20 | 64.93 | c | 61.55 | 55.50 | 40.29 | 26.90 | 24.84 | 42.48 | |||||||||||
1947 | 17.75 | a | 28.08 | b | 32.18 | 40.29 | a | 53.13 | 57.82 | 64.18 | 61.94 | 55.35 | 45.90 | 24.93 | 16.02 | 41.46 | ||||||||||
1948 | 14.58 | 16.17 | 23.07 | a | 45.48 | d | ----- | z | 59.47 | n | 63.42 | 63.28 | a | 55.37 | 41.31 | b | 24.50 | 19.38 | b | 36.66 | b | |||||
1949 | 10.26 | 15.71 | b | 33.05 | 42.17 | g | 51.24 | 57.73 | 63.84 | 59.87 | 53.65 | c | 37.44 | g | 33.83 | 18.89 | 39.81 | b | ||||||||
1950 | 18.34 | c | 27.73 | b | 32.68 | f | 43.30 | b | 49.21 | c | 59.48 | 61.18 | 58.40 | 52.23 | 47.21 | e | 31.70 | 24.39 | 43.02 | a | ||||||
1951 | 21.81 | 22.89 | 31.50 | 40.98 | 52.28 | a | 58.22 | 67.65 | 63.22 | a | 56.78 | 44.61 | 26.80 | 20.39 | 42.26 | |||||||||||
1952 | 15.95 | 19.05 | 27.33 | a | 44.12 | 52.29 | 62.65 | 64.08 | 62.36 | c | 56.32 | 46.08 | 25.55 | 14.32 | 40.84 | |||||||||||
1953 | 25.94 | 24.18 | 35.32 | 40.75 | 47.37 | 60.65 | 64.89 | 60.63 | 56.47 | 46.02 | a | 31.57 | 17.02 | 42.57 | ||||||||||||
1954 | 21.26 | 33.55 | 33.55 | 48.03 | 54.60 | 63.57 | 65.42 | 60.39 | 57.47 | 50.77 | e | 34.81 | d | 20.79 | 45.35 | |||||||||||
1955 | 18.50 | 20.32 | 32.97 | 39.40 | 49.87 | 58.00 | 64.06 | 65.11 | 56.55 | 46.18 | 32.18 | 25.18 | a | 42.36 | ||||||||||||
1956 | 24.05 | 20.57 | 34.85 | 40.53 | 54.52 | 63.23 | 64.79 | 60.56 | 58.27 | 46.15 | 27.22 | 23.00 | 43.14 | |||||||||||||
1957 | 21.48 | 33.07 | 34.31 | 38.62 | 46.85 | 59.55 | 63.97 | 62.29 | 53.27 | 44.11 | 24.35 | 22.21 | 42.01 | |||||||||||||
1958 | 18.21 | 29.75 | 30.37 | 39.27 | 54.42 | 61.38 | 62.50 | 63.05 | 55.52 | 45.08 | 30.67 | 27.35 | 43.13 | |||||||||||||
1959 | 17.82 | 24.66 | 31.16 | 40.78 | 49.06 | 61.20 | 61.66 | 60.68 | 52.02 | 42.18 | a | 30.45 | 26.58 | 41.52 | ||||||||||||
1960 | 12.87 | 15.24 | 34.44 | 44.20 | 50.15 | 60.60 | 62.81 | 61.44 | 55.98 | 43.89 | 32.93 | 16.56 | 40.93 | |||||||||||||
1961 | 14.69 | 27.77 | 34.61 | 42.48 | 51.81 | 60.45 | 62.18 | 62.61 | 52.12 | 44.34 | 25.27 | 15.66 | 41.17 | |||||||||||||
1962 | 17.85 | 30.46 | 29.32 | 45.77 | 51.08 | 57.38 | 61.66 | 60.39 | 54.83 | 47.08 | 34.78 | 27.87 | 43.21 | |||||||||||||
1963 | 14.48 | 25.91 | 33.24 | 42.52 | b | 53.71 | 58.17 | 65.58 | 62.74 | 58.15 | 49.97 | 33.13 | 22.60 | 43.35 | ||||||||||||
1964 | 17.35 | 14.38 | 25.26 | 39.87 | 51.92 | 58.20 | 66.79 | 61.94 | 55.87 | 46.65 | 28.07 | 12.48 | 39.90 | |||||||||||||
1965 | 18.90 | 21.23 | 28.89 | 42.23 | 49.11 | 56.22 | 63.77 | a | 60.13 | 52.68 | 46.98 | 36.23 | 24.19 | 41.71 | ||||||||||||
1966 | 14.34 | 14.61 | 33.81 | 42.95 | 52.97 | 57.85 | 65.73 | 61.48 | 56.77 | 44.81 | 35.03 | 23.68 | a | 42.00 | ||||||||||||
1967 | 20.94 | 27.27 | 37.35 | 41.55 | b | 50.18 | 56.87 | 64.65 | 60.87 | 55.20 | 46.89 | 33.53 | 13.95 | 42.44 | ||||||||||||
1968 | 7.35 | 20.47 | 32.61 | 38.92 | 49.94 | 60.18 | 62.82 | 59.89 | 53.03 | 46.53 | 30.98 | 20.39 | 40.26 | |||||||||||||
1969 | 25.65 | 25.73 | 31.15 | 44.97 | 53.87 | 56.12 | 65.13 | 64.97 | 56.07 | 39.90 | 32.52 | 21.08 | 43.10 | |||||||||||||
1970 | 20.10 | 31.34 | 32.32 | 37.73 | 52.50 | 57.45 | 63.95 | 63.60 | 52.43 | a | 37.95 | 31.84 | a | 22.10 | 41.94 | |||||||||||
1971 | 20.53 | a | 22.89 | 32.08 | 39.98 | 46.84 | 57.02 | 60.45 | 60.27 | 52.21 | a | 42.57 | a | 28.13 | 18.05 | 40.09 | ||||||||||
1972 | 16.97 | 27.50 | 38.06 | 42.10 | 48.97 | 58.25 | 60.44 | 58.60 | 52.33 | 44.63 | 17.42 | 8.15 | 39.45 | |||||||||||||
1973 | 4.35 | 12.89 | 29.56 | 37.62 | a | 50.19 | 58.63 | 60.94 | 59.26 | 52.23 | 43.48 | 33.13 | 22.65 | 38.75 | ||||||||||||
1974 | 9.03 | 13.70 | 36.73 | 38.70 | 53.56 | 59.70 | 61.87 | 57.55 | 53.65 | 45.50 | 30.12 | 15.00 | a | 39.59 | ||||||||||||
1975 | 7.32 | 16.70 | 31.28 | a | 37.48 | 48.11 | 55.22 | 61.61 | 59.13 | 52.81 | a | 41.92 | 25.82 | 12.08 | 37.46 | |||||||||||
1976 | 8.08 | 26.64 | 31.63 | 40.55 | 49.06 | 54.10 | 60.85 | 56.76 | 52.57 | 39.27 | a | 28.17 | 8.55 | a | 38.02 | |||||||||||
1977 | 8.21 | 21.34 | 27.58 | 41.90 | 48.85 | 59.70 | 61.32 | 60.63 | 53.72 | 43.23 | 30.70 | 23.98 | 40.10 | |||||||||||||
1978 | 22.24 | 26.18 | 36.16 | 41.52 | 45.87 | 55.88 | 59.87 | 58.84 | 53.08 | 43.94 | 30.58 | 3.48 | 39.80 | |||||||||||||
1979 | 2.70 | a | 7.95 | 25.82 | 40.79 | a | 49.05 | 55.02 | 60.40 | 57.18 | 54.87 | 45.31 | 21.50 | 19.71 | 36.69 | |||||||||||
1980 | 16.74 | 28.10 | 30.32 | 39.15 | 46.92 | 57.47 | 62.31 | 57.97 | 53.37 | 39.52 | 30.20 | 28.00 | 40.84 | |||||||||||||
1981 | 24.21 | 26.12 | 31.82 | 44.65 | 47.13 | 60.17 | a | 62.61 | 59.27 | 53.80 | 41.26 | 33.90 | a | 22.02 | 42.25 | |||||||||||
1982 | 18.92 | a | 19.27 | 32.66 | 38.46 | b | 46.24 | 53.05 | 60.56 | 62.37 | a | 54.52 | 40.11 | 30.50 | a | 22.53 | a | 39.93 | ||||||||
1983 | 22.26 | b | 27.32 | 33.92 | a | 36.38 | 46.82 | 54.83 | 63.21 | 63.08 | 56.90 | a | 45.23 | 29.69 | a | 16.67 | a | 41.36 | ||||||||
1984 | 2.02 | 11.21 | a | 28.05 | a | 40.02 | b | 54.53 | 57.38 | 63.58 | 62.06 | 55.50 | 39.81 | 30.82 | 18.97 | 38.66 | ||||||||||
1985 | 12.33 | a | 16.43 | 32.93 | b | 43.62 | 51.33 | a | 59.32 | 63.26 | 62.24 | 51.57 | 44.65 | a | 29.12 | a | 16.15 | 40.25 | ||||||||
1986 | 21.31 | 29.57 | a | 39.13 | 44.66 | a | 50.30 | a | 59.08 | 60.82 | 61.19 | 51.50 | 41.92 | 30.07 | a | 19.47 | a | 42.42 | ||||||||
1987 | 12.18 | a | 19.57 | a | 27.15 | 43.35 | 50.38 | a | 59.66 | a | 61.39 | 59.95 | 53.52 | 47.71 | 28.05 | 13.52 | c | 39.70 | ||||||||
1988 | 4.12 | b | 15.07 | a | 31.90 | 43.82 | 49.38 | a | 59.68 | 62.37 | 61.37 | 54.12 | 48.15 | 29.35 | 17.39 | 39.73 | ||||||||||
1989 | 14.38 | a | 16.95 | 38.74 | 46.45 | 53.66 | 57.22 | 64.05 | 59.77 | 55.32 | 43.57 | a | 33.87 | 22.65 | 42.22 | |||||||||||
1990 | 15.87 | 26.73 | 36.66 | 43.90 | 48.11 | 59.95 | 61.32 | 58.13 | 57.90 | 44.28 | a | 31.82 | 15.34 | 41.67 | ||||||||||||
1991 | 12.02 | 25.95 | 32.40 | 40.83 | 50.34 | 58.02 | a | 61.90 | 61.40 | 55.70 | 48.32 | 21.70 | 5.68 | 39.52 | ||||||||||||
1992 | 0.82 | 12.70 | a | 27.73 | 45.80 | 53.16 | 56.35 | 59.73 | 58.56 | 54.35 | 47.22 | a | 25.16 | a | 7.64 | b | 37.43 | |||||||||
1993 | 12.68 | a | 17.33 | b | 33.06 | 41.22 | 50.35 | a | 57.88 | 61.29 | 58.89 | 52.40 | 41.40 | 25.28 | 18.38 | b | 39.18 | |||||||||
1994 | 20.92 | g | 24.19 | g | 37.06 | 42.32 | 52.00 | 60.98 | 61.35 | 62.34 | 55.17 | 42.94 | d | 23.79 | k | 22.56 | f | 51.77 | d | |||||||
1995 | 23.26 | h | 35.13 | a | 35.55 | 39.40 | 48.08 | 56.52 | 60.40 | 63.63 | 54.70 | 44.55 | 34.63 | 26.63 | 45.38 | a | ||||||||||
1996 | 21.79 | 30.48 | 34.21 | 42.90 | 56.27 | 59.72 | 63.68 | 61.73 | 53.10 | 43.08 | a | 32.54 | c | 21.56 | 43.42 | |||||||||||
1997 | 15.25 | a | 23.28 | a | 35.68 | a | 38.92 | 51.39 | 58.95 | 61.98 | a | 61.92 | 58.28 | a | 43.65 | 28.32 | 11.00 | a | 40.72 | |||||||
1998 | 15.24 | 21.71 | 33.42 | 38.26 | e | 51.19 | 56.47 | a | 64.56 | 62.89 | 59.45 | a | 43.65 | a | 34.68 | 24.34 | 42.16 | |||||||||
1999 | 27.35 | 29.66 | 38.08 | a | 39.43 | 48.50 | 57.93 | 63.77 | 61.74 | 54.30 | 45.87 | 35.11 | c | 23.31 | 43.76 | |||||||||||
2000 | 25.15 | 30.31 | 35.19 | 43.75 | d | 54.45 | 60.07 | 63.74 | 62.63 | 57.93 | 43.90 | 27.07 | 24.00 | 44.02 | ||||||||||||
2001 | 17.02 | 21.39 | 35.35 | 44.95 | 54.23 | 61.13 | 64.74 | 62.87 | 58.12 | 45.95 | 33.52 | 20.34 | 43.30 | |||||||||||||
2002 | 18.18 | 23.52 | a | 32.27 | 48.58 | 52.63 | 62.72 | 65.76 | 62.24 | 55.45 | 43.21 | 31.60 | 19.34 | 42.96 | ||||||||||||
2003 | 28.74 | 27.14 | 36.45 | 43.28 | 53.77 | 59.00 | 67.24 | 64.06 | 56.33 | 49.58 | 31.97 | 20.27 | 44.82 | |||||||||||||
2004 | 20.71 | 16.81 | 40.47 | 42.07 | 52.98 | 59.18 | 62.48 | 61.44 | 54.92 | 44.10 | 31.72 | 21.73 | 42.38 | |||||||||||||
2005 | 25.48 | 27.77 | 33.81 | 43.23 | 53.74 | 59.15 | 65.31 | 62.26 | 57.63 | 46.61 | 34.05 | 23.16 | 44.35 | |||||||||||||
2006 | 23.10 | 27.30 | 34.44 | 45.33 | 55.15 | 62.73 | 65.74 | 63.10 | 52.28 | n | 44.23 | 33.03 | 20.00 | 43.10 | a | |||||||||||
2007 | 7.65 | 17.91 | 37.55 | 43.73 | 51.71 | 61.00 | 66.23 | 65.50 | 57.43 | 45.29 | 33.64 | a | 11.15 | 41.56 | ||||||||||||
2008 | 5.29 | 16.09 | 29.29 | 41.87 | 49.85 | 58.33 | 64.19 | 62.10 | 55.13 | 45.16 | 33.58 | 15.52 | 39.70 | |||||||||||||
2009 | 12.37 | 21.93 | 36.73 | 41.73 | 55.02 | 57.57 | 63.98 | h | 60.55 | 55.35 | 41.30 | k | 31.74 | m | 19.07 | k | 42.65 | d | ||||||||
2010 | 21.00 | l | 17.55 | i | 34.26 | j | 45.89 | l | 53.22 | o | 61.95 | j | 66.42 | l | 64.05 | i | 58.95 | j | 46.82 | l | 29.83 | i | 29.86 | j | ----- | z |
2011 | 19.76 | n | 20.05 | i | 36.12 | k | 44.12 | n | 45.23 | p | 61.94 | l | 68.19 | m | 65.60 | k | 56.73 | j | 44.48 | k | 30.12 | i | 13.74 | n | ----- | z |
2012 | 21.85 | k | 25.97 | k | 38.35 | n | 49.50 | n | 54.64 | t | 65.09 | n | 67.39 | q | 64.00 | i | 55.00 | o | 45.80 | p | 31.66 | k | 16.27 | p | ----- | z |
2013 | 6.09 | t | 22.36 | n | 34.87 | p | 41.69 | l | 50.11 | m | 62.83 | o | 65.34 | l | 64.03 | k | 59.76 | m | 44.64 | m | 31.56 | m | 8.28 | m | ----- | z |
2014 | 13.03 | n | 26.47 | k | 36.78 | o | 39.75 | p | 48.00 | s | 60.83 | r | 66.38 | n | 63.50 | l | 59.83 | j | 46.92 | m | 30.19 | l | 23.55 | l | ----- | z |
2015 | 25.05 | l | 27.63 | i | 39.94 | n | 44.61 | k | 50.27 | r | 63.18 | m | 64.81 | o | 63.54 | q | 59.06 | l | 50.58 | l | 33.00 | m | 21.92 | l | ----- | z |
2016 | 12.97 | o | 27.81 | m | 36.24 | h | 43.82 | m | 49.29 | q | 64.67 | r | 65.82 | t | 61.19 | o | 57.80 | o | 49.91 | t | 41.57 | w | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 16.11 | 22.73 | 32.84 | 41.93 | 51.02 | 58.73 | 63.17 | 61.28 | 54.87 | 44.42 | 30.19 | 18.98 | 41.29 | |||||||||||||
S.D. | 6.54 | 6.12 | 3.58 | 2.74 | 2.55 | 2.19 | 1.90 | 1.91 | 1.94 | 2.62 | 3.80 | 5.50 | 1.87 | |||||||||||||
SKEW | -0.43 | -0.20 | -0.34 | 0.32 | -0.09 | -0.03 | 0.20 | -0.25 | 0.23 | -0.13 | -0.91 | -0.71 | -0.25 | |||||||||||||
MAX | 28.74 | 35.13 | 40.47 | 48.58 | 56.27 | 63.57 | 67.65 | 65.50 | 59.45 | 50.77 | 36.23 | 28.00 | 45.35 | |||||||||||||
MIN | 0.82 | 7.95 | 23.07 | 36.38 | 45.87 | 53.05 | 59.73 | 56.76 | 51.50 | 37.95 | 17.42 | 3.48 | 36.69 | |||||||||||||
YRS | 66 | 67 | 66 | 66 | 67 | 67 | 67 | 68 | 67 | 66 | 66 | 67 | 60 |