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 | 44.63 | d | 44.63 | k |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 76.67 | 65.52 | 49.37 | 38.58 | 57.53 | h | ||||
1988 | 31.74 | 43.04 | a | 50.70 | a | 60.27 | 71.90 | a | 86.27 | 88.13 | a | 87.96 | g | 75.30 | 66.71 | c | 51.00 | 44.26 | 60.85 | a | ||||||
1989 | 46.55 | 30.50 | 60.90 | k | 65.20 | y | 70.45 | 74.90 | a | 86.94 | 81.84 | 73.14 | a | 66.71 | 55.69 | a | 37.71 | 62.44 | b | |||||||
1990 | 43.14 | c | 38.17 | d | 52.40 | a | 64.27 | 68.06 | m | 87.00 | t | 85.26 | l | 85.43 | a | 82.93 | a | 67.43 | a | 55.70 | 37.73 | i | 61.18 | d | ||
1991 | 38.35 | 55.32 | 53.17 | b | 60.90 | 72.58 | 84.07 | a | 85.41 | b | 83.57 | c | 77.87 | 66.55 | 44.07 | 43.34 | b | 63.77 | ||||||||
1992 | 38.27 | a | 49.62 | 55.52 | 68.33 | i | 73.21 | c | 77.07 | a | 82.83 | a | 80.80 | a | 79.20 | 69.00 | b | 41.70 | 32.48 | 61.79 | a | |||||
1993 | 31.26 | 33.68 | 51.00 | 59.70 | 69.27 | a | 79.53 | 84.29 | 80.96 | g | 72.10 | 60.33 | p | 44.04 | b | 44.64 | f | 58.32 | c | |||||||
1994 | 41.74 | h | 31.86 | u | ----- | z | ----- | z | ----- | z | ----- | z | 91.06 | ----- | z | 85.14 | b | 66.73 | a | 48.53 | 45.86 | c | 67.47 | g | ||
1995 | 43.17 | b | 51.67 | a | 52.90 | b | 55.87 | 59.68 | 78.60 | e | 86.35 | 92.54 | g | 76.97 | 62.79 | c | 56.52 | a | 46.18 | i | 62.45 | b | ||||
1996 | 40.32 | c | 49.69 | 49.27 | e | 65.87 | 69.13 | 82.90 | 85.83 | a | 84.11 | l | 74.27 | 67.63 | a | 48.37 | 47.39 | c | 61.88 | a | ||||||
1997 | 42.58 | 43.33 | a | 60.36 | f | 57.31 | a | 71.74 | 83.43 | 89.37 | a | 84.40 | a | 81.43 | b | 66.57 | a | 48.13 | 37.45 | 64.16 | a | |||||
1998 | 44.45 | b | 45.64 | 49.16 | 60.43 | 76.48 | 82.14 | h | 88.46 | c | 86.16 | 84.87 | 66.54 | c | 50.68 | e | 43.77 | 63.33 | a | |||||||
1999 | 47.00 | c | 55.50 | 56.10 | 58.07 | 70.66 | b | 81.11 | k | 92.24 | b | 87.00 | e | 74.07 | 69.32 | c | 62.73 | 46.35 | h | 67.27 | b | |||||
2000 | 43.13 | 52.88 | e | 54.10 | 66.33 | 76.10 | 83.73 | h | 91.94 | 93.16 | 80.88 | f | 65.59 | b | 42.33 | 38.70 | d | 62.43 | b | |||||||
2001 | 42.68 | c | 38.36 | 50.61 | 65.10 | a | 70.96 | c | 86.60 | 92.23 | e | 90.39 | 81.50 | d | 68.00 | e | 55.61 | b | 46.36 | c | 65.70 | |||||
2002 | 44.61 | 44.50 | d | 47.70 | a | 66.83 | 73.79 | g | 89.15 | c | 93.60 | a | 88.68 | c | 79.19 | c | 59.42 | 53.76 | i | 47.65 | 66.13 | b | ||||
2003 | 46.64 | c | 40.18 | 55.50 | c | 65.93 | 70.58 | 79.50 | 96.00 | d | 90.71 | 78.83 | f | 71.00 | e | 48.72 | a | 47.93 | b | 64.79 | a | |||||
2004 | 43.21 | c | 43.52 | b | 62.96 | d | 63.54 | b | 75.93 | c | 79.77 | 88.61 | h | 83.65 | 81.13 | 66.03 | b | 49.03 | 45.97 | b | 63.16 | a | ||||
2005 | 42.04 | d | 49.11 | 54.16 | 62.07 | 73.39 | 84.57 | b | 92.67 | a | 87.97 | b | 83.30 | 66.52 | 55.72 | e | 42.19 | e | 66.14 | |||||||
2006 | 52.11 | d | 45.12 | c | 50.46 | e | 68.24 | a | 77.87 | 86.92 | d | 91.08 | g | 84.81 | d | 72.50 | b | 62.87 | 51.46 | f | 44.23 | i | 66.77 | c | ||
2007 | 28.11 | c | 32.62 | b | 58.48 | d | 58.50 | 74.07 | c | 82.79 | b | 90.50 | c | 89.50 | e | 81.28 | a | 70.06 | 56.20 | 35.18 | c | 63.11 | ||||
2008 | 36.07 | a | 42.65 | c | 53.46 | c | 60.32 | h | 71.85 | d | 85.53 | m | 92.59 | d | 84.27 | e | 76.55 | a | 63.93 | b | 52.78 | c | 39.00 | b | 61.32 | b |
2009 | 44.90 | 50.81 | b | 55.48 | 58.62 | a | 71.11 | d | 80.23 | 85.93 | a | 85.00 | 73.41 | c | 53.29 | 55.59 | a | 35.67 | g | 64.94 | a | |||||
2010 | 42.58 | 38.54 | d | 53.75 | c | 65.11 | b | 69.59 | d | 85.82 | m | 90.00 | i | 89.32 | f | 82.57 | b | 70.00 | d | 52.97 | 45.42 | g | 59.39 | d | ||
2011 | 38.64 | c | 39.64 | 56.17 | b | 61.37 | c | 70.12 | e | 85.25 | j | 93.68 | c | 91.57 | a | 77.33 | l | 69.36 | c | 54.30 | 41.96 | c | 61.68 | b | ||
2012 | 49.16 | 40.31 | c | 64.87 | a | 68.17 | a | 77.45 | 95.17 | l | 95.52 | h | 90.33 | m | 81.52 | a | 62.60 | f | 60.57 | b | 44.39 | 60.80 | d | |||
2013 | 41.93 | a | 44.69 | b | 50.16 | 55.88 | d | 74.35 | e | 87.36 | e | 89.72 | b | 87.74 | 81.96 | b | 63.79 | b | 51.70 | c | 42.00 | a | 64.28 | |||
2014 | 44.87 | 35.23 | b | 54.87 | 63.83 | 72.00 | b | 82.13 | 87.73 | e | 87.76 | b | 77.92 | e | 69.27 | e | 50.77 | 43.07 | d | 64.12 | ||||||
2015 | 42.87 | a | 47.07 | 58.80 | a | 65.32 | b | 66.35 | 84.80 | 88.21 | c | 89.03 | 85.52 | a | 68.00 | f | 58.12 | e | 41.84 | 66.18 | a | |||||
2016 | 43.87 | 48.21 | 61.70 | d | 62.50 | 68.10 | b | 88.75 | b | 89.42 | 84.19 | d | 80.46 | f | 74.07 | b | 60.63 | c | 39.06 | 65.50 | a | |||||
2017 | 37.77 | 53.07 | a | 62.58 | 64.21 | f | 69.59 | b | 84.77 | 90.71 | 84.03 | b | 78.35 | d | 65.42 | 56.19 | c | 44.68 | 66.10 | a | ||||||
2018 | 44.19 | 40.21 | 57.76 | b | 58.00 | 76.06 | 87.68 | b | 88.68 | 85.10 | a | 79.62 | d | 58.76 | b | 48.75 | b | 45.48 | 64.19 | |||||||
2019 | 43.77 | 37.25 | 46.10 | 65.27 | 64.23 | 82.50 | 90.97 | 85.68 | 83.10 | 59.81 | 50.73 | 45.61 | 62.92 | |||||||||||||
2020 | 45.87 | 43.55 | 55.26 | 62.53 | 70.54 | e | 89.90 | a | 89.97 | 91.90 | a | 79.03 | 62.97 | 59.69 | a | 44.55 | 66.31 | |||||||||
2021 | 42.29 | 34.04 | 54.07 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.16 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 42.07 | 43.57 | 54.51 | 62.35 | 71.51 | 83.51 | 89.48 | 86.71 | 79.08 | 65.86 | 52.40 | 42.54 | 64.50 | |||||||||||||
S.D. | 4.97 | 6.72 | 4.59 | 3.67 | 3.89 | 3.99 | 3.13 | 3.21 | 3.94 | 4.12 | 5.37 | 3.93 | 1.26 | |||||||||||||
SKEW | -0.95 | -0.01 | 0.46 | -0.18 | -0.80 | -0.30 | -0.13 | 0.28 | -0.20 | -0.93 | -0.14 | -0.77 | 0.32 | |||||||||||||
MAX | 52.11 | 55.50 | 64.87 | 68.24 | 77.87 | 89.90 | 96.00 | 93.16 | 85.52 | 74.07 | 62.73 | 47.93 | 66.31 | |||||||||||||
MIN | 28.11 | 30.50 | 46.10 | 55.87 | 59.68 | 74.90 | 82.83 | 80.80 | 72.10 | 53.29 | 41.70 | 32.48 | 62.92 | |||||||||||||
YRS | 33 | 33 | 30 | 28 | 30 | 24 | 28 | 26 | 30 | 31 | 32 | 28 | 9 |