YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1943 | ----- | z | ----- | z | ----- | z | ----- | z | 58.81 | j | 65.37 | 82.16 | 80.13 | 76.70 | 62.77 | a | 48.17 | 31.03 | 63.76 | e | ||||||
1944 | 31.19 | 34.32 | a | 39.10 | 51.75 | b | 64.00 | 63.83 | a | 76.00 | 74.71 | 69.97 | a | 65.00 | m | 37.59 | a | 31.74 | 52.20 | a | ||||||
1945 | 35.26 | 35.57 | 42.77 | a | 47.14 | a | 61.07 | a | 63.53 | 82.55 | 82.68 | 68.90 | 64.29 | 35.53 | 27.43 | a | 53.89 | |||||||||
1946 | 32.40 | a | 36.85 | o | 46.00 | 61.62 | a | 57.47 | a | 69.45 | a | 80.84 | 79.20 | k | 65.18 | b | 45.48 | 39.40 | 33.87 | a | 53.17 | b | ||||
1947 | 28.90 | 36.14 | 44.16 | 51.90 | a | 64.06 | 62.97 | 81.74 | 77.33 | a | 65.27 | 59.26 | 34.66 | a | 32.48 | 53.24 | ||||||||||
1948 | 31.84 | 32.45 | 36.68 | 47.37 | c | ----- | z | 70.00 | a | 75.69 | r | 77.00 | ----- | z | ----- | z | ----- | z | ----- | z | 49.22 | f | ||||
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | 44.93 | a | 54.97 | 59.40 | a | 66.19 | d | 77.29 | 81.63 | d | 72.88 | d | 55.79 | g | 45.75 | b | 35.90 | 59.88 | c | |||
1996 | 34.97 | b | 34.22 | b | 44.27 | e | 56.38 | f | 55.43 | c | 74.88 | d | 85.40 | a | 83.19 | e | ----- | z | 57.23 | e | 48.96 | c | 34.67 | a | 55.32 | b |
1997 | 33.26 | d | 33.30 | e | 46.00 | a | 49.15 | d | 68.26 | d | 70.15 | d | 76.93 | b | 78.27 | e | 71.96 | d | 57.35 | e | 45.12 | f | 28.48 | b | 55.74 | a |
1998 | 33.97 | b | 37.54 | 45.03 | b | 54.25 | b | 64.57 | c | 64.79 | b | 82.86 | b | 82.14 | c | 74.46 | d | 57.74 | d | 41.74 | c | 30.68 | f | 58.10 | a | |
1999 | 35.39 | c | 35.08 | c | 42.04 | c | 48.15 | d | 59.19 | d | 66.22 | c | 79.37 | a | 81.14 | b | 69.88 | e | 62.67 | d | 51.18 | b | 33.25 | c | 55.30 | |
2000 | 31.11 | d | 36.33 | e | 39.27 | a | 59.27 | d | 61.00 | c | 73.00 | b | 80.10 | b | 81.77 | 67.32 | e | 57.56 | d | 28.79 | b | 30.07 | d | 53.80 | ||
2001 | 29.68 | c | 31.56 | c | 43.79 | b | 51.31 | d | 64.04 | c | 71.08 | e | 76.42 | e | 84.73 | a | 75.18 | b | 55.74 | 46.23 | 26.81 | d | 54.72 | |||
2002 | 29.48 | b | 32.87 | e | 36.52 | b | 50.41 | h | 61.48 | d | 68.78 | c | 81.07 | b | 76.04 | c | 70.50 | d | 53.56 | d | 40.50 | b | 40.07 | c | 53.71 | a |
2003 | 36.24 | b | 33.07 | 46.23 | a | 51.63 | c | 63.50 | e | 68.42 | d | 84.62 | b | 82.25 | c | 71.26 | c | 61.50 | e | 33.50 | b | 30.35 | e | 55.21 | ||
2004 | 28.11 | c | 32.04 | b | 50.42 | e | 56.57 | b | 58.82 | c | 68.68 | b | 77.87 | a | 75.30 | a | 65.30 | c | 55.52 | 43.00 | b | 38.17 | b | 54.15 | ||
2005 | 34.58 | e | ----- | z | 46.43 | a | 50.16 | e | 59.13 | a | 64.07 | b | 81.24 | b | 81.68 | c | 69.04 | d | 58.42 | 36.89 | c | 29.04 | c | 55.52 | a | |
2006 | 33.54 | c | 30.64 | 40.29 | c | 52.67 | c | 68.15 | d | 72.88 | f | 83.67 | d | 79.52 | d | 70.16 | e | 53.63 | d | 41.03 | a | 27.07 | a | 52.76 | a | |
2007 | 26.73 | e | 36.62 | b | 49.64 | f | 54.56 | e | 64.22 | d | 75.68 | e | 86.50 | a | 78.33 | a | 76.82 | s | 54.44 | o | 36.39 | l | 25.97 | b | 56.08 | d |
2008 | 23.60 | a | 35.71 | a | 38.00 | d | 45.38 | f | 59.83 | a | 68.78 | c | 79.56 | d | 81.33 | d | 69.10 | a | ----- | z | 46.52 | c | 28.97 | 53.14 | b | |
2009 | 30.76 | f | 34.81 | b | 38.69 | b | 49.63 | c | 63.39 | c | 65.96 | c | 76.14 | b | 76.48 | b | 77.78 | c | 46.41 | d | 39.89 | c | 27.12 | e | 54.21 | a |
2010 | 30.32 | c | 33.12 | c | 45.39 | 51.18 | b | 53.43 | c | 64.66 | a | 76.85 | e | 71.89 | d | 70.50 | 60.87 | 34.79 | a | 25.25 | c | 51.52 | ||||
2011 | 33.27 | a | 31.41 | a | 40.93 | b | 45.50 | 56.90 | 65.38 | f | 78.93 | c | 80.86 | b | 76.24 | a | 56.81 | 43.23 | 32.61 | c | 52.43 | a | ||||
2012 | 35.46 | c | 46.78 | b | ----- | z | 57.24 | a | 60.50 | g | 72.81 | d | 81.68 | 83.48 | b | 74.33 | 53.55 | 37.07 | 25.77 | 56.82 | b | |||||
2013 | 29.16 | 34.64 | 42.52 | 48.23 | 63.32 | 70.73 | 83.13 | 81.00 | 67.97 | 54.87 | 39.96 | c | 29.68 | 53.77 | ||||||||||||
2014 | 38.52 | 28.04 | a | 39.77 | 50.73 | 64.00 | b | ----- | z | 81.87 | 75.40 | a | 68.93 | 63.87 | 35.60 | 32.97 | 52.70 | a | ||||||||
2015 | 35.29 | 39.46 | 55.26 | 57.27 | 59.40 | a | 79.23 | 77.33 | a | 79.27 | a | 69.48 | a | 62.08 | e | 32.30 | 27.68 | 56.17 | ||||||||
2016 | 28.43 | a | 38.83 | 44.45 | 56.87 | 59.86 | b | 76.43 | b | 79.03 | 77.68 | 64.27 | 56.77 | 48.90 | a | 23.30 | a | 54.57 | ||||||||
2017 | 20.13 | a | 33.85 | b | 46.97 | 49.52 | a | 63.77 | 75.00 | 84.26 | 83.70 | a | 67.69 | a | 55.23 | ----- | z | 31.71 | 55.62 | a | ||||||
2018 | ----- | z | 30.71 | 40.74 | 51.50 | b | 63.16 | 67.97 | ----- | z | 78.97 | a | 67.10 | 56.81 | 37.79 | a | 31.39 | 52.61 | b | |||||||
2019 | 28.87 | a | 21.89 | 35.42 | 51.20 | 57.93 | a | 68.31 | a | ----- | z | 78.87 | 66.63 | 48.10 | 43.03 | 36.53 | a | 48.80 | a | |||||||
2020 | 32.55 | 30.74 | b | 37.94 | 50.37 | 60.87 | 66.97 | ----- | z | ----- | z | ----- | z | 53.23 | 38.62 | a | 28.74 | 44.45 | c | |||||||
2021 | 29.35 | 27.75 | ----- | z | 52.64 | b | ----- | z | 81.63 | 83.16 | 74.45 | 72.27 | 56.37 | a | 45.60 | 34.37 | a | 55.76 | b | |||||||
2022 | 32.55 | 33.75 | 44.90 | 44.00 | ----- | z | 66.74 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.39 | g | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 31.47 | 33.77 | 42.83 | 51.94 | 61.37 | 69.43 | 80.64 | 79.39 | 70.22 | 56.70 | 40.56 | 30.73 | 54.21 | |||||||||||||
S.D. | 3.90 | 4.27 | 4.35 | 4.05 | 3.46 | 4.74 | 2.98 | 3.18 | 3.63 | 4.78 | 5.59 | 3.97 | 1.23 | |||||||||||||
SKEW | -0.82 | 0.19 | 0.55 | 0.39 | -0.13 | 0.81 | 0.03 | -0.40 | 0.39 | -0.58 | 0.04 | 0.37 | -0.60 | |||||||||||||
MAX | 38.52 | 46.78 | 55.26 | 61.62 | 68.26 | 81.63 | 86.50 | 84.73 | 77.78 | 64.29 | 51.18 | 40.07 | 56.17 | |||||||||||||
MIN | 20.13 | 21.89 | 35.42 | 44.00 | 53.43 | 62.97 | 76.00 | 71.89 | 64.27 | 45.48 | 28.79 | 23.30 | 51.52 | |||||||||||||
YRS | 30 | 30 | 30 | 30 | 29 | 31 | 29 | 31 | 29 | 28 | 29 | 31 | 11 |