YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.27 | 45.29 | 49.78 | j | ||
1938 | 43.74 | d | 50.07 | a | 53.35 | 69.07 | 76.48 | 84.33 | 92.35 | 91.48 | ----- | z | ----- | z | ----- | z | 39.83 | a | 66.75 | c | ||||||
1939 | 41.45 | 42.78 | a | 59.13 | 70.67 | 79.35 | 80.76 | a | 93.84 | 93.13 | 80.47 | 66.75 | c | 51.57 | b | 45.32 | 67.10 | |||||||||
1940 | 40.81 | 48.18 | a | 60.13 | 65.03 | 79.74 | 89.70 | 93.93 | a | 93.23 | 77.63 | 66.52 | 48.83 | a | 43.20 | a | 67.24 | |||||||||
1941 | 41.26 | 48.93 | 61.35 | 65.57 | 75.23 | 80.86 | a | 93.90 | 86.52 | 74.87 | 64.61 | 52.67 | 42.31 | b | 65.67 | |||||||||||
1942 | 28.67 | a | 40.71 | 52.77 | 66.30 | 68.48 | 76.90 | 99.00 | 91.84 | 80.27 | 69.16 | 47.47 | 41.42 | 63.58 | ||||||||||||
1943 | 37.13 | 43.82 | 53.23 | 68.60 | 69.29 | 75.80 | 90.06 | 88.97 | 85.27 | 69.68 | 52.40 | 48.16 | 65.20 | |||||||||||||
1944 | 35.94 | 43.55 | 54.23 | 63.90 | 74.60 | a | 76.93 | a | 89.87 | 88.55 | 80.00 | ----- | z | 47.97 | a | 35.53 | a | 62.82 | a | |||||||
1945 | 37.45 | 49.04 | 52.23 | 62.10 | 73.06 | 77.60 | 93.84 | 90.97 | 75.53 | 69.61 | 48.27 | 38.70 | a | 64.03 | ||||||||||||
1946 | 37.80 | a | 43.57 | 57.97 | 68.90 | 74.94 | 83.67 | 92.97 | 91.19 | 77.43 | 61.55 | 49.57 | b | 43.50 | c | 65.25 | ||||||||||
1947 | 32.57 | a | 48.00 | a | 59.45 | 65.67 | 80.33 | a | 76.73 | 94.48 | 90.65 | 78.33 | 68.39 | 46.21 | b | 40.10 | 65.08 | |||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 88.12 | f | 87.50 | c | 78.64 | b | 69.77 | 48.50 | 32.83 | a | 63.45 | g | ||
1949 | 20.10 | 44.50 | 59.00 | d | 70.96 | b | 77.61 | c | 82.43 | b | 91.83 | b | 92.50 | e | 83.16 | e | 62.32 | c | 52.48 | a | 41.39 | 64.86 | ||||
1950 | 33.33 | a | 40.11 | 51.06 | 62.25 | b | 70.39 | c | 80.17 | a | 92.26 | d | 90.15 | e | 79.75 | b | 68.17 | a | 50.57 | 43.39 | 63.47 | |||||
1951 | 37.70 | a | 44.00 | 49.59 | d | 68.20 | e | 73.62 | e | 80.35 | d | 93.10 | b | 88.04 | e | 80.07 | 61.48 | 46.72 | a | 36.32 | 63.27 | |||||
1952 | 33.26 | 36.89 | a | 47.93 | a | 68.00 | c | 74.04 | g | 80.65 | d | 90.21 | b | 91.22 | d | 82.50 | b | 71.37 | a | 46.17 | 39.40 | a | 62.51 | a | ||
1953 | 47.90 | a | 46.81 | a | 56.93 | a | 61.90 | a | 68.13 | h | 74.46 | b | 92.55 | b | 89.25 | g | 82.76 | e | 66.37 | a | 53.24 | a | 39.74 | 62.27 | b | |
1954 | 44.10 | 47.59 | a | 51.83 | a | 66.89 | b | 75.96 | e | 76.27 | d | 92.79 | g | 85.48 | f | 77.27 | h | 64.13 | 52.24 | a | 37.63 | a | 57.41 | c | ||
1955 | 30.32 | 35.04 | b | 48.96 | g | 57.30 | g | 71.00 | k | 83.64 | h | 89.25 | g | 93.16 | f | 79.61 | b | 65.64 | c | 43.23 | 41.40 | a | 49.21 | f | ||
1956 | 38.48 | 36.07 | b | 55.38 | b | 66.43 | 75.26 | 80.33 | 93.29 | 87.71 | 80.97 | 61.87 | 44.00 | 36.97 | 63.06 | |||||||||||
1957 | 26.55 | 38.36 | 53.97 | a | 61.43 | 72.10 | 83.00 | 92.35 | 89.94 | 82.27 | 61.77 | 47.60 | 40.35 | 62.47 | ||||||||||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.07 | a | ----- | z | 47.07 | k |
1962 | 27.32 | 36.86 | 51.58 | 69.20 | 69.35 | 82.53 | 90.26 | 87.10 | 81.13 | 63.87 | 51.23 | 39.32 | 62.48 | |||||||||||||
1963 | 32.61 | 52.00 | 57.19 | 58.70 | 75.68 | 77.93 | 88.45 | 89.58 | 81.63 | 70.42 | 49.60 | 32.19 | 63.83 | |||||||||||||
1964 | 32.84 | 35.83 | 49.55 | 61.37 | 71.13 | 76.87 | 92.32 | 86.23 | 75.57 | 67.45 | 46.73 | 41.42 | 61.44 | |||||||||||||
1965 | 37.45 | 47.61 | 53.42 | 64.87 | 70.97 | 80.43 | 89.39 | 85.65 | 72.80 | 70.74 | 53.97 | 37.65 | 63.74 | |||||||||||||
1966 | 42.65 | 45.54 | 56.84 | 65.30 | 78.42 | 79.73 | 91.16 | 89.61 | 82.90 | 64.03 | 51.80 | 38.45 | 65.54 | |||||||||||||
1967 | 41.52 | 49.25 | 54.55 | 56.53 | 72.81 | 80.30 | 95.68 | 95.13 | 84.67 | 63.06 | 50.77 | 36.58 | 65.07 | |||||||||||||
1968 | 36.68 | 49.45 | 59.35 | 62.44 | c | 71.70 | a | 81.67 | 93.10 | 82.13 | 77.17 | 64.26 | 47.53 | 40.52 | 63.83 | |||||||||||
1969 | 36.94 | 39.86 | 53.52 | 65.43 | 77.19 | 81.67 | 90.58 | 91.61 | 80.03 | 60.19 | 50.17 | 40.52 | 63.98 | |||||||||||||
1970 | 41.39 | 51.32 | 54.06 | 57.43 | 73.03 | 84.13 | 91.52 | 92.71 | 73.37 | 61.16 | 49.80 | 37.48 | 63.95 | |||||||||||||
1971 | 39.29 | 47.82 | 51.58 | 63.73 | 75.97 | 78.00 | 91.58 | 95.48 | 75.00 | 62.58 | 46.73 | 36.68 | 63.70 | |||||||||||||
1972 | 36.16 | 40.79 | 56.87 | 61.90 | 75.52 | 83.03 | 89.94 | 91.35 | 73.57 | 66.35 | 48.50 | 28.42 | 62.70 | |||||||||||||
1973 | 34.52 | 46.32 | 56.13 | 63.20 | 76.23 | 82.27 | 92.86 | b | 89.65 | 77.13 | 64.10 | 47.60 | 42.81 | 64.40 | ||||||||||||
1974 | 34.87 | 46.57 | 54.71 | 62.90 | 70.77 | 87.63 | 89.71 | 89.68 | 83.17 | 65.71 | 50.33 | 37.00 | 64.42 | |||||||||||||
1975 | 31.74 | 42.46 | 51.00 | 55.20 | 69.00 | 78.13 | 93.94 | 84.03 | 81.60 | 63.39 | 47.30 | 35.29 | 61.09 | |||||||||||||
1976 | 33.73 | a | 40.14 | 49.16 | 61.87 | 76.68 | 77.87 | 90.23 | 82.16 | 79.37 | 66.29 | 50.80 | 37.39 | 62.14 | ||||||||||||
1977 | 24.94 | 39.79 | 53.58 | 70.97 | 66.55 | 87.50 | 89.32 | 90.16 | 76.60 | 66.81 | 48.70 | 44.10 | 63.25 | |||||||||||||
1978 | 41.87 | 45.86 | 60.97 | 61.50 | 69.29 | 81.30 | 90.23 | 87.13 | 75.70 | 69.48 | 45.57 | 33.13 | 63.50 | |||||||||||||
1979 | 23.00 | 40.00 | 56.97 | 62.53 | 73.87 | 83.37 | 91.52 | 87.39 | 83.77 | 68.39 | 45.30 | 39.48 | 62.96 | |||||||||||||
1980 | 37.00 | 46.10 | 54.32 | 68.17 | 72.13 | 77.93 | 89.94 | 86.55 | 77.00 | 66.68 | 47.83 | 38.16 | 63.48 | |||||||||||||
1981 | 38.42 | 46.46 | 58.13 | 65.40 | 71.29 | 79.23 | 90.42 | 94.61 | 79.53 | 60.29 | 51.67 | 39.10 | 64.55 | |||||||||||||
1982 | 30.37 | a | 36.57 | 53.68 | 59.90 | 71.35 | 81.30 | 86.68 | 90.23 | 76.53 | 64.16 | 44.90 | 37.97 | 61.14 | ||||||||||||
1983 | 36.90 | 47.75 | 55.84 | 61.03 | 73.13 | 79.07 | 85.23 | 89.65 | 78.23 | 65.87 | 51.07 | 31.68 | 62.95 | |||||||||||||
1984 | 28.39 | 35.52 | 53.94 | 61.45 | a | 68.68 | 77.67 | 91.00 | 92.00 | 77.03 | 61.61 | 48.70 | 29.71 | 60.47 | ||||||||||||
1985 | 25.42 | 35.07 | 49.39 | 69.20 | 74.52 | 84.47 | 96.03 | 86.19 | 70.60 | 61.61 | 37.33 | 19.35 | 59.10 | |||||||||||||
1986 | 30.06 | 46.68 | 61.84 | 64.53 | 75.52 | 90.77 | 87.48 | 95.10 | 71.50 | 66.45 | 50.80 | 34.06 | 64.57 | |||||||||||||
1987 | 32.13 | 47.07 | 57.00 | 74.07 | 78.90 | 85.30 | 88.81 | 88.58 | 83.57 | 71.26 | 49.50 | 40.29 | 66.37 | |||||||||||||
1988 | 30.13 | 44.48 | 57.39 | 67.33 | 74.03 | 85.30 | 93.35 | 90.23 | 77.57 | 75.06 | 48.93 | 32.32 | 64.68 | |||||||||||||
1989 | 28.10 | 27.11 | 50.94 | 67.93 | 71.97 | a | 84.30 | 92.74 | 85.42 | 79.43 | 64.26 | 48.67 | 38.42 | 61.61 | ||||||||||||
1990 | 41.58 | 46.25 | 58.81 | 70.60 | 71.00 | 81.73 | 92.52 | 88.52 | 86.47 | 63.26 | 50.00 | 27.71 | 64.87 | |||||||||||||
1991 | 29.71 | 48.00 | 54.97 | 63.03 | 68.84 | 77.83 | 92.55 | 92.13 | 81.13 | 67.81 | 44.90 | 37.84 | 63.23 | |||||||||||||
1992 | 38.03 | 51.10 | 64.29 | 69.80 | 81.97 | 85.50 | 86.81 | 92.29 | 78.00 | 68.39 | 42.83 | 34.87 | 66.16 | |||||||||||||
1993 | 30.59 | b | 34.18 | 48.19 | 61.60 | 77.84 | 75.60 | 80.00 | 84.65 | 80.53 | 67.00 | a | 43.10 | 41.03 | 60.36 | |||||||||||
1994 | 37.61 | 42.89 | 61.52 | 67.97 | 75.00 | 81.60 | 92.87 | 92.06 | 83.27 | 63.58 | 39.97 | 33.81 | 64.35 | |||||||||||||
1995 | 39.65 | 51.93 | 55.19 | 63.00 | 72.23 | 79.67 | 88.77 | 86.84 | 82.30 | 63.13 | 51.10 | 39.71 | 64.46 | |||||||||||||
1996 | 40.00 | a | 43.76 | 57.19 | 64.97 | 69.61 | 82.47 | 93.81 | 89.19 | 76.77 | 65.74 | 51.00 | 41.97 | 64.71 | ||||||||||||
1997 | 40.32 | 46.37 | a | 58.48 | 62.90 | 76.94 | 81.60 | 88.55 | 91.13 | 82.17 | 65.26 | 50.87 | 38.13 | a | 65.23 | |||||||||||
1998 | 42.29 | 48.39 | 56.00 | 64.28 | a | 68.84 | 78.50 | 95.39 | 93.55 | 84.13 | 65.71 | 52.76 | a | 36.10 | 65.49 | |||||||||||
1999 | 42.27 | a | 43.04 | 56.29 | 62.90 | 70.97 | 80.90 | 90.87 | 90.66 | b | 80.10 | 68.84 | 54.67 | 37.68 | 64.93 | |||||||||||
2000 | 39.39 | 50.37 | b | 55.87 | 70.10 | 75.07 | a | 84.37 | 93.32 | 94.06 | 78.20 | 64.97 | 42.33 | 36.94 | 65.42 | |||||||||||
2001 | 33.68 | 40.89 | 59.30 | a | 62.10 | 78.48 | 82.41 | a | 90.77 | 93.61 | 83.34 | a | 66.03 | 52.60 | 37.26 | 65.04 | ||||||||||
2002 | 37.64 | c | 43.85 | b | 53.23 | 66.43 | 73.45 | b | 85.48 | a | 95.57 | a | 88.13 | a | 81.75 | b | 65.07 | a | 49.43 | 43.90 | 65.33 | |||||
2003 | 41.77 | a | 48.88 | c | 59.42 | 64.72 | a | 74.39 | 87.57 | b | 97.65 | 92.67 | a | 81.66 | a | 72.74 | 47.63 | 44.90 | 67.83 | |||||||
2004 | 33.10 | 42.48 | 63.68 | 69.34 | a | 72.81 | 83.44 | c | 94.43 | c | 90.55 | b | 79.14 | a | 67.39 | 46.47 | 41.52 | 65.36 | ||||||||
2005 | 38.00 | 47.80 | c | 59.34 | b | 64.10 | a | 69.80 | k | 79.00 | h | 95.26 | l | 92.39 | h | 80.10 | j | 66.52 | j | 46.47 | k | 31.89 | l | 52.31 | h | |
2006 | 42.71 | j | 46.47 | i | 54.10 | j | 64.10 | j | 78.57 | j | 86.29 | i | 99.21 | l | 90.83 | h | 81.37 | k | 66.18 | i | 52.65 | j | 39.44 | o | ----- | z |
2007 | 38.55 | i | 49.74 | i | 61.86 | i | 65.14 | i | 79.90 | j | 85.55 | j | 98.40 | k | 91.82 | i | 80.42 | k | 65.52 | h | 51.80 | j | 42.12 | o | ----- | z |
2008 | 33.64 | i | 45.35 | i | 55.38 | j | 61.48 | i | 75.20 | k | 81.86 | i | 94.24 | j | 93.00 | l | 82.10 | j | 67.26 | h | 51.17 | l | 38.68 | l | ----- | z |
2009 | 36.65 | k | 46.05 | i | 53.68 | i | 66.52 | i | 74.56 | m | 82.68 | h | 93.60 | k | 92.90 | k | 86.10 | j | 59.80 | k | 51.95 | k | 33.71 | j | ----- | z |
2010 | 43.75 | o | 45.93 | m | 58.35 | h | 62.85 | d | 66.38 | b | 78.83 | 91.26 | 87.93 | b | 80.40 | 67.55 | 48.33 | 35.61 | c | 68.79 | c | |||||
2011 | 32.90 | 44.04 | 52.39 | 59.40 | 67.90 | a | 77.38 | a | 90.03 | 93.16 | 85.00 | b | 64.90 | a | 47.37 | 40.03 | 62.87 | |||||||||
2012 | 42.65 | 46.46 | a | 55.97 | 68.32 | b | 73.10 | b | 81.04 | f | 95.57 | a | 93.76 | b | 82.48 | a | 62.90 | 50.03 | a | 41.73 | a | 64.82 | a | |||
2013 | 23.00 | c | 43.33 | a | 56.59 | b | 63.00 | f | 75.20 | a | 82.33 | 97.97 | a | 93.61 | 78.77 | 62.93 | a | 46.97 | a | 27.73 | a | 62.58 | a | |||
2014 | 33.52 | b | 46.04 | 57.87 | a | 64.33 | 74.87 | h | 82.59 | a | 95.19 | 85.62 | b | 79.96 | e | 64.43 | c | 39.70 | c | 42.42 | 62.88 | a | ||||
2015 | 36.76 | b | 51.93 | a | 59.06 | 62.35 | g | 73.52 | b | 91.23 | 91.23 | a | 90.86 | c | 78.08 | d | 71.45 | 47.11 | b | 37.68 | 66.26 | a | ||||
2016 | 36.58 | 50.55 | 56.31 | b | 63.24 | a | 72.00 | e | 89.00 | a | 90.11 | c | 91.23 | a | 78.76 | e | 64.00 | c | 53.79 | b | 27.42 | 64.42 | ||||
2017 | 24.64 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | 78.56 | v | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2020 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.43 | 37.86 | j | 47.43 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 35.45 | 44.22 | 55.63 | 64.81 | 73.50 | 81.50 | 91.77 | 89.93 | 79.53 | 65.85 | 48.52 | 38.00 | 63.99 | |||||||||||||
S.D. | 5.75 | 5.15 | 3.69 | 3.77 | 3.49 | 3.76 | 3.05 | 3.08 | 3.38 | 3.19 | 3.47 | 4.91 | 1.71 | |||||||||||||
SKEW | -0.48 | -0.80 | 0.01 | -0.04 | 0.12 | 0.55 | -0.64 | -0.42 | -0.40 | 0.47 | -0.77 | -1.05 | -0.46 | |||||||||||||
MAX | 47.90 | 52.00 | 64.29 | 74.07 | 81.97 | 91.23 | 99.00 | 95.48 | 86.47 | 75.06 | 54.67 | 48.16 | 67.83 | |||||||||||||
MIN | 20.10 | 27.11 | 47.93 | 55.20 | 66.38 | 74.46 | 80.00 | 82.13 | 70.60 | 60.19 | 37.33 | 19.35 | 59.10 | |||||||||||||
YRS | 69 | 69 | 68 | 67 | 65 | 67 | 67 | 67 | 68 | 68 | 72 | 71 | 58 |