YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | 42.23 | ----- | z | ----- | z | 44.90 | a | 45.35 | 48.80 | 51.40 | k | 50.65 | h | 48.64 | b | 46.79 | b | 44.50 | 42.37 | a | 45.45 | d | ||||
1997 | 41.00 | 38.93 | 41.55 | b | 43.33 | c | 48.84 | 50.71 | b | 54.52 | 54.52 | 52.93 | 48.96 | f | 46.50 | b | 38.57 | a | 46.49 | a | ||||||
1998 | 46.13 | 43.56 | a | 42.77 | 41.62 | a | 46.64 | c | 51.30 | 54.76 | f | 53.39 | c | 49.52 | c | 45.84 | 44.89 | b | 37.61 | 45.75 | a | |||||
1999 | 39.83 | a | 41.96 | c | 38.19 | d | 40.85 | d | 44.46 | c | 48.65 | d | 50.68 | l | 52.25 | c | 46.56 | l | 44.00 | c | 47.00 | c | 40.03 | 43.72 | b | |
2000 | 40.32 | 42.96 | b | 38.65 | 43.74 | g | 47.29 | 49.87 | 52.67 | j | 52.75 | c | 50.00 | b | 45.96 | c | 41.16 | e | 41.33 | d | 45.03 | b | ||||
2001 | 39.06 | 38.04 | 40.80 | a | 42.37 | 45.68 | c | 46.48 | i | 51.74 | 53.39 | 50.30 | c | 45.93 | c | 45.37 | 42.07 | a | 44.98 | a | ||||||
2002 | 39.72 | b | 40.79 | 38.23 | a | 43.30 | 43.81 | 50.58 | f | 52.96 | d | 48.74 | d | 48.40 | e | 42.04 | c | 45.03 | 44.23 | 44.30 | a | |||||
2003 | 46.00 | d | 39.25 | 44.46 | c | 43.17 | a | 45.00 | 49.23 | d | 53.11 | c | 53.20 | f | 50.37 | 50.16 | 42.04 | c | 42.96 | d | 45.98 | a | ||||
2004 | 42.80 | a | 41.52 | 41.56 | f | 43.40 | 47.30 | a | 51.93 | b | 54.85 | d | 55.16 | 51.62 | d | 46.66 | b | 40.77 | 41.13 | 47.01 | a | |||||
2005 | 41.13 | a | 39.71 | 42.68 | 43.57 | 49.11 | c | 51.57 | 53.45 | b | 50.96 | g | 47.04 | d | 47.76 | b | 41.30 | c | 42.13 | 45.40 | a | |||||
2006 | 43.23 | 37.68 | 39.83 | b | 43.04 | e | 45.07 | c | 52.47 | 52.81 | 51.24 | j | 48.75 | f | 43.32 | 44.26 | c | 38.64 | f | 44.63 | c | |||||
2007 | 35.11 | d | 40.93 | 42.71 | 42.14 | b | 44.74 | 47.80 | 54.76 | f | 53.77 | 49.00 | e | 45.45 | 40.00 | b | 37.83 | h | 44.17 | b | ||||||
2008 | 37.07 | b | 37.70 | b | 38.50 | i | 38.36 | b | 46.48 | d | 46.73 | 50.93 | c | 52.64 | f | 47.33 | 45.52 | b | 45.41 | c | 36.89 | d | 43.24 | b | ||
2009 | 37.85 | e | 39.18 | 39.23 | 39.87 | 45.93 | b | 50.87 | 51.81 | 50.26 | l | 49.61 | b | 46.00 | 41.87 | 36.71 | c | 43.54 | a | |||||||
2010 | 45.39 | c | 42.24 | c | 39.27 | a | 40.57 | 44.17 | b | 49.50 | 50.36 | c | 51.54 | e | 51.93 | c | 47.65 | n | 40.00 | h | 43.14 | c | 45.81 | b | ||
2011 | 39.00 | b | 36.61 | 43.11 | m | 39.96 | e | 43.62 | e | 49.71 | f | 51.93 | d | 51.96 | f | 50.22 | g | 46.50 | a | 41.26 | k | 37.33 | p | 42.93 | f | |
2012 | 38.48 | f | 38.83 | 37.92 | r | 42.88 | f | 44.59 | b | 49.21 | k | 53.45 | k | 51.28 | f | 47.12 | e | 46.90 | 45.48 | c | 36.33 | s | 44.58 | g | ||
2013 | 38.62 | w | 38.21 | 41.00 | h | 41.00 | j | 46.48 | f | 49.20 | j | 53.25 | k | 52.65 | k | 52.30 | c | 42.31 | e | 40.78 | g | 30.87 | h | 44.27 | i | |
2014 | 39.36 | f | 34.20 | w | 40.42 | s | 43.33 | i | 49.04 | c | 49.53 | k | 53.84 | 52.84 | 50.70 | 43.88 | n | 35.53 | m | 48.00 | y | 51.60 | h | |||
2015 | ----- | z | 43.07 | 42.03 | 40.63 | 47.42 | 48.90 | a | 53.06 | 53.10 | 48.53 | 48.97 | 40.10 | 42.00 | 46.17 | a | ||||||||||
2016 | 42.65 | 42.28 | 42.90 | 44.63 | 46.81 | 49.00 | 53.06 | 49.07 | p | 48.07 | 50.48 | 47.00 | 33.69 | r | 46.69 | b | ||||||||||
2017 | 35.74 | 39.36 | c | 42.26 | 42.03 | 45.45 | 49.43 | 51.29 | 51.55 | 49.87 | 44.52 | 39.25 | v | 36.94 | 44.40 | a | ||||||||||
2018 | 42.58 | 36.14 | 37.32 | 41.93 | 48.19 | 48.63 | 52.17 | a | 52.58 | 47.33 | 45.19 | 41.53 | 39.71 | 44.44 | ||||||||||||
2019 | 40.68 | 35.00 | 37.19 | 44.47 | 44.11 | v | 48.50 | p | 53.48 | 53.52 | 52.63 | 42.10 | 38.70 | 40.52 | 43.83 | b | ||||||||||
2020 | 43.19 | 36.31 | ----- | z | 45.19 | n | 45.97 | 50.32 | b | 50.92 | f | 50.78 | h | 51.38 | d | 43.76 | f | 39.70 | 39.14 | b | 43.72 | e | ||||
2021 | ----- | z | 38.43 | 36.61 | c | 36.71 | m | 44.45 | i | 50.23 | 53.10 | b | 51.68 | 48.20 | 45.90 | 44.30 | 39.03 | 45.28 | c | |||||||
2022 | 38.45 | 36.86 | 40.14 | b | 38.80 | 43.74 | 49.17 | a | 53.29 | 53.87 | 51.33 | 47.60 | a | 36.80 | 38.58 | 44.05 | ||||||||||
2023 | 37.38 | j | 35.75 | d | 35.10 | 41.40 | 49.04 | h | 48.57 | 52.74 | 54.42 | 50.63 | 47.57 | a | 42.63 | ----- | z | 45.42 | c | |||||||
2024 | 49.85 | r | 42.86 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.86 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 40.87 | 39.41 | 40.10 | 42.02 | 46.03 | 49.70 | 52.72 | 52.89 | 49.79 | 45.98 | 42.88 | 40.25 | 44.25 | |||||||||||||
S.D. | 3.05 | 2.52 | 2.54 | 1.82 | 1.69 | 1.42 | 1.14 | 1.49 | 1.79 | 2.24 | 2.83 | 2.28 | 0.28 | |||||||||||||
SKEW | -0.03 | 0.07 | -0.17 | -0.31 | 0.38 | 0.13 | -0.24 | -1.09 | 0.07 | 0.03 | -0.28 | -0.07 | 0.00 | |||||||||||||
MAX | 46.13 | 43.56 | 44.46 | 44.90 | 49.11 | 52.47 | 54.85 | 55.16 | 52.93 | 50.48 | 47.00 | 44.23 | 44.44 | |||||||||||||
MIN | 35.11 | 35.00 | 35.10 | 38.36 | 43.62 | 46.73 | 50.36 | 48.74 | 47.04 | 42.04 | 36.80 | 36.71 | 44.05 | |||||||||||||
YRS | 22 | 27 | 20 | 22 | 24 | 21 | 20 | 17 | 25 | 24 | 23 | 20 | 2 |