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 | ----- | z | ----- | z |
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 | 68.19 | 55.13 | 52.26 | 58.53 | i | |||
1981 | 48.87 | 49.57 | 51.26 | 70.57 | 68.13 | 85.60 | 87.55 | 81.68 | 78.33 | 64.03 | 57.27 | 46.81 | 65.81 | |||||||||||||
1982 | 41.76 | b | 43.23 | b | 54.29 | 63.87 | 67.42 | 73.70 | 86.65 | 85.42 | 75.83 | 63.84 | 49.80 | 43.81 | 62.47 | |||||||||||
1983 | 42.58 | 43.57 | e | 46.65 | 54.83 | 66.84 | 77.07 | a | 91.10 | 91.23 | 80.87 | 67.10 | 51.57 | 28.10 | a | 61.79 | ||||||||||
1984 | 36.33 | a | 43.69 | 47.68 | 53.90 | 71.71 | 82.17 | 88.74 | 86.71 | 77.50 | 66.83 | y | ----- | z | ----- | z | 65.38 | c | ||||||||
1985 | ----- | z | ----- | z | ----- | z | 68.24 | i | 72.63 | a | 83.62 | a | 87.90 | a | 88.19 | 76.14 | a | 64.35 | 43.34 | a | 39.48 | h | 73.74 | e | ||
1986 | 54.32 | 50.82 | 63.06 | 68.96 | d | 74.03 | 82.47 | 89.35 | 86.67 | j | 78.29 | i | 64.47 | a | 52.83 | a | 44.77 | 64.51 | b | |||||||
1987 | 44.71 | 49.07 | 50.03 | 66.17 | 71.70 | a | 83.30 | 88.81 | 83.23 | 79.33 | 68.94 | 55.13 | 43.10 | 65.29 | ||||||||||||
1988 | 32.58 | 42.31 | 53.94 | 64.17 | 74.40 | a | 85.52 | c | 89.48 | d | 88.97 | 78.00 | 69.23 | 55.13 | 44.61 | 64.86 | ||||||||||
1989 | 46.94 | 35.93 | 60.65 | 67.83 | 74.19 | 77.47 | 89.52 | 85.00 | 76.77 | 68.61 | 58.60 | 40.81 | 65.19 | |||||||||||||
1990 | 45.42 | 42.50 | 51.68 | 64.30 | 68.57 | a | 87.63 | 85.52 | 86.65 | 82.47 | 67.97 | a | 58.03 | 39.52 | 65.02 | |||||||||||
1991 | 41.22 | d | 57.19 | a | 54.84 | 62.87 | 74.58 | 84.97 | a | 85.35 | n | 83.87 | 77.73 | 69.42 | 46.80 | 43.23 | 63.34 | a | ||||||||
1992 | 45.03 | 52.31 | 58.52 | 68.73 | 74.81 | 76.52 | e | 84.67 | g | 81.77 | a | 80.93 | 70.60 | a | 46.00 | 37.94 | 63.01 | a | ||||||||
1993 | 35.19 | 40.57 | 54.42 | 62.37 | 73.03 | 81.83 | 87.65 | 83.77 | 73.03 | 63.74 | 46.73 | 47.03 | 62.45 | |||||||||||||
1994 | 52.08 | f | 47.37 | i | 59.61 | 63.00 | a | 74.58 | 87.77 | 89.59 | i | 89.67 | g | 81.87 | 66.80 | a | 50.77 | 51.10 | 66.94 | d | ||||||
1995 | 46.71 | 53.71 | 55.06 | 57.57 | 62.71 | 78.33 | 86.46 | c | 90.23 | a | 78.87 | 68.74 | 59.00 | 51.00 | a | 65.70 | ||||||||||
1996 | 48.00 | 51.38 | 53.42 | 67.21 | a | 76.45 | 83.39 | b | 85.20 | a | 84.30 | a | 75.37 | 69.30 | a | 52.74 | c | 48.19 | 66.25 | |||||||
1997 | 41.97 | a | 44.96 | c | 59.93 | b | 57.00 | a | 71.45 | b | 79.58 | f | 89.70 | d | 82.92 | e | 78.68 | b | 67.19 | e | 49.71 | b | 37.37 | a | 61.90 | a |
1998 | 44.16 | 45.00 | e | 50.92 | f | 61.73 | d | 76.93 | b | 80.05 | j | 87.13 | h | 84.48 | f | 83.93 | a | 66.73 | a | 55.13 | 45.97 | a | 59.95 | d | ||
1999 | 48.80 | a | 57.20 | c | 60.14 | b | 61.04 | d | 69.33 | a | 80.52 | g | 87.96 | h | 85.03 | a | 74.11 | c | 68.63 | a | 64.07 | b | 49.23 | 63.76 | b | |
2000 | 49.45 | b | 56.15 | c | 54.87 | 67.18 | b | 75.15 | e | 84.19 | c | 91.35 | e | 90.36 | c | 81.50 | 66.68 | 45.61 | b | 43.61 | 67.17 | |||||
2001 | 44.13 | 45.04 | d | 52.35 | 70.50 | f | 71.96 | g | 83.84 | e | 90.85 | e | ----- | z | ----- | z | ----- | z | ----- | z | 47.96 | c | 60.70 | f | ||
2002 | 47.03 | 47.80 | c | 53.81 | 67.69 | a | 75.23 | 88.37 | c | 92.89 | c | 89.46 | c | 80.86 | i | 60.00 | c | 53.75 | b | 47.65 | 65.79 | a | ||||
2003 | 49.94 | 43.82 | 55.10 | 66.80 | 73.00 | c | 77.65 | g | 94.74 | 89.87 | h | 77.21 | b | 73.86 | b | 49.84 | e | 49.57 | h | 64.92 | c | |||||
2004 | 45.63 | d | 45.48 | 61.55 | b | 64.62 | d | 77.07 | b | 78.83 | 82.10 | j | 81.61 | 79.38 | a | 67.42 | 49.89 | b | 48.94 | 63.67 | a | |||||
2005 | 46.54 | c | 50.00 | 55.04 | e | 61.70 | c | 71.32 | i | 82.96 | e | 92.10 | 86.76 | b | 82.77 | 70.88 | e | 59.26 | g | 45.26 | 67.40 | b | ||||
2006 | 52.39 | 48.25 | 55.32 | 66.12 | f | 77.20 | a | 86.57 | 89.50 | a | 84.79 | b | 72.90 | 64.58 | 54.62 | f | 41.87 | 67.34 | b | |||||||
2007 | 35.83 | a | 41.29 | 61.23 | a | 57.21 | b | 71.94 | 81.80 | e | 89.40 | p | 89.28 | b | 80.77 | 70.52 | 58.50 | 38.29 | 62.42 | a | ||||||
2008 | 41.68 | 46.19 | b | 54.93 | a | 62.13 | 73.83 | b | 83.13 | 90.16 | 81.07 | c | ----- | z | 63.92 | e | 56.27 | 41.74 | 63.19 | a | ||||||
2009 | 46.97 | 53.96 | 57.48 | 59.80 | 72.60 | a | 79.57 | 85.94 | 85.37 | a | 75.77 | 54.94 | 56.47 | 36.10 | 63.75 | |||||||||||
2010 | 45.13 | 39.29 | 54.48 | b | 64.24 | a | 68.93 | c | 85.97 | 87.81 | 86.42 | 84.20 | 71.00 | 55.11 | b | 47.68 | 65.85 | |||||||||
2011 | 42.87 | 41.68 | c | 57.67 | a | 65.70 | 69.68 | 85.80 | 93.41 | b | 92.43 | a | 78.93 | 68.00 | 55.10 | 40.90 | 66.01 | |||||||||
2012 | 47.74 | 41.85 | b | 64.37 | a | 68.57 | 76.53 | a | 90.57 | i | 93.29 | 89.03 | a | 80.03 | 65.00 | 61.41 | a | 45.29 | 66.65 | a | ||||||
2013 | 46.10 | 45.61 | 52.38 | r | 58.83 | 74.00 | 88.29 | b | 84.67 | v | 87.77 | 81.40 | 64.52 | 51.81 | d | 43.75 | c | 64.21 | b | |||||||
2014 | ----- | z | ----- | z | ----- | z | ----- | z | 72.60 | f | 83.47 | 86.69 | b | 84.71 | 79.00 | 69.55 | 50.57 | b | 44.06 | 71.15 | e | |||||
2015 | 45.84 | 48.78 | a | 56.68 | 65.13 | 65.30 | a | 82.37 | 86.70 | a | 87.87 | a | 85.38 | a | 69.71 | 54.14 | b | 44.58 | 66.04 | |||||||
2016 | 47.07 | a | 50.79 | 59.55 | b | 63.69 | a | 68.94 | 86.28 | a | 91.03 | 85.74 | 83.23 | 74.84 | 60.36 | b | 41.10 | 67.72 | ||||||||
2017 | 42.03 | 56.61 | 62.65 | 62.20 | 68.58 | 84.57 | 87.45 | b | 81.10 | 76.97 | 65.97 | a | 57.87 | 47.29 | c | 66.11 | ||||||||||
2018 | 49.52 | 44.50 | 60.52 | 62.00 | 77.90 | a | 89.25 | b | 88.10 | a | 83.30 | d | 82.33 | 60.23 | 51.64 | e | 46.60 | a | 66.32 | |||||||
2019 | 45.32 | 43.44 | a | 48.61 | 65.90 | 65.32 | 81.67 | 91.45 | 89.77 | 86.83 | 62.32 | 52.63 | 48.94 | 65.18 | ||||||||||||
2020 | 48.16 | 44.00 | 59.13 | 63.73 | 76.00 | 89.57 | 91.52 | 92.00 | 79.43 | 65.13 | 59.77 | 46.03 | a | 67.87 | ||||||||||||
2021 | 45.37 | a | 37.89 | a | 54.65 | 63.00 | 69.03 | 84.83 | 89.52 | 89.37 | d | 85.83 | a | 71.32 | 61.46 | b | 53.48 | b | 67.15 | |||||||
2022 | 45.94 | 43.30 | a | 53.32 | 67.70 | 74.71 | 83.37 | 91.19 | 87.03 | b | 84.33 | 70.84 | 52.47 | 43.84 | 66.50 | |||||||||||
2023 | 38.71 | 44.54 | 52.13 | 64.77 | 73.77 | a | 78.69 | a | 87.48 | 88.90 | 83.93 | 71.03 | 59.70 | 50.03 | 66.14 | |||||||||||
2024 | 41.16 | 53.97 | 58.00 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.04 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 44.76 | 46.76 | 55.97 | 63.56 | 72.20 | 83.28 | 89.34 | 86.40 | 79.79 | 67.15 | 54.05 | 44.63 | 65.51 | |||||||||||||
S.D. | 4.51 | 5.42 | 4.25 | 3.94 | 3.74 | 3.73 | 2.43 | 3.17 | 3.52 | 3.81 | 4.84 | 4.87 | 1.60 | |||||||||||||
SKEW | -0.68 | 0.34 | -0.10 | -0.59 | -0.59 | -0.51 | 0.26 | 0.03 | 0.00 | -0.74 | -0.15 | -0.91 | -0.89 | |||||||||||||
MAX | 54.32 | 57.20 | 64.37 | 70.57 | 77.90 | 89.57 | 94.74 | 92.43 | 86.83 | 74.84 | 64.07 | 53.48 | 67.87 | |||||||||||||
MIN | 32.58 | 35.93 | 46.65 | 53.90 | 62.71 | 73.70 | 85.20 | 81.07 | 72.90 | 54.94 | 43.34 | 28.10 | 61.79 | |||||||||||||
YRS | 41 | 41 | 40 | 39 | 40 | 38 | 35 | 38 | 39 | 42 | 40 | 41 | 23 |