YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.94 | l | 52.81 | 34.53 | 25.52 | 37.62 | i | |||
1951 | 24.29 | 31.71 | 37.77 | 44.90 | 56.32 | 68.63 | 70.68 | 68.42 | 62.27 | 53.39 | 34.30 | 32.48 | 48.76 | |||||||||||||
1952 | 34.97 | 35.24 | 38.42 | 48.43 | 57.58 | 68.70 | 67.55 | 72.61 | 60.33 | 48.16 | f | 41.17 | 27.87 | 50.26 | a | |||||||||||
1953 | 33.47 | a | 29.96 | 43.63 | a | 46.30 | 56.19 | 69.03 | 66.61 | 62.90 | 51.89 | b | 44.32 | 32.13 | 24.90 | 46.78 | ||||||||||
1954 | 30.06 | 33.82 | 36.83 | m | 51.64 | h | 55.50 | i | 60.17 | f | 69.61 | m | 67.71 | g | 60.07 | p | 50.37 | l | 36.43 | 29.55 | 32.47 | h | ||||
1955 | 26.46 | e | ----- | z | ----- | z | 48.83 | 57.69 | b | 66.00 | 68.42 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.48 | g | |||
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 | 34.83 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.83 | k |
1972 | ----- | z | 35.93 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.93 | k |
1973 | ----- | z | 34.39 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.39 | k | |
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 | 33.72 | a | ----- | z | 33.72 | k |
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 | 32.45 | 32.45 | k | |
1979 | 28.71 | c | 33.43 | 44.48 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.53 | a | ----- | z | ----- | z | 40.54 | h | |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.59 | a | 34.28 | f | 36.59 | k |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | 32.82 | c | 39.75 | e | 44.59 | b | 53.48 | a | 65.14 | c | 67.74 | g | 75.04 | d | 72.08 | e | 67.17 | a | 54.43 | a | 40.21 | a | 33.32 | c | 52.55 | a |
2001 | 32.52 | d | 38.77 | b | 42.48 | d | 54.67 | 64.20 | a | 72.90 | 76.03 | 72.48 | 65.37 | 54.90 | 45.63 | 35.94 | 54.66 | |||||||||
2002 | 35.60 | a | 32.82 | f | 40.43 | a | 57.93 | 63.68 | 71.66 | a | 71.97 | 74.40 | a | 65.73 | d | 55.07 | b | 41.45 | a | 35.14 | b | 55.73 | a | |||
2003 | 34.73 | e | 37.67 | d | 46.06 | 55.63 | 64.63 | a | ----- | z | 72.48 | 73.10 | a | 65.53 | 54.83 | a | 46.34 | a | 35.52 | 53.32 | a | |||||
2004 | 37.32 | 36.59 | 48.23 | a | ----- | z | 62.58 | 69.17 | 70.90 | 69.74 | 64.37 | 57.29 | 41.97 | a | 33.57 | a | 53.79 | a | ||||||||
2005 | 38.17 | b | 38.18 | 42.03 | 51.17 | 59.68 | 69.90 | 69.94 | 68.84 | 65.79 | a | 54.29 | 41.20 | 31.81 | 52.58 | |||||||||||
2006 | 34.87 | a | 36.18 | 47.23 | 58.70 | 64.87 | a | 71.20 | 69.22 | d | 71.66 | b | 63.63 | 55.00 | a | 44.30 | 34.71 | 54.30 | ||||||||
2007 | 31.93 | c | 37.30 | a | 47.63 | a | 50.38 | a | 60.34 | b | 67.63 | 70.17 | a | 72.10 | a | 68.03 | a | 58.06 | 44.86 | a | 36.17 | a | 53.72 | |||
2008 | 32.87 | a | 38.48 | 44.62 | g | 54.20 | 63.68 | 73.56 | e | 72.13 | 69.74 | 62.60 | 54.70 | a | 45.21 | a | 39.03 | 55.11 | a | |||||||
2009 | 37.97 | 44.27 | b | 49.23 | a | 54.53 | 62.83 | a | 71.33 | 72.45 | 72.83 | a | 63.23 | 53.70 | a | 44.93 | b | 36.29 | 55.30 | |||||||
2010 | 32.23 | 38.22 | a | 43.40 | a | 52.28 | a | 59.70 | a | 72.07 | a | 70.84 | 73.16 | 66.11 | b | 56.03 | 45.00 | a | 38.00 | 53.92 | ||||||
2011 | 35.16 | 31.14 | 46.23 | 55.28 | a | 59.77 | 73.31 | a | 73.85 | d | 75.94 | 62.90 | 53.71 | 40.73 | 31.00 | 53.25 | ||||||||||
2012 | 33.48 | 36.79 | a | 46.97 | 57.86 | a | 63.81 | 71.10 | a | 71.63 | a | 70.68 | c | 63.77 | 52.00 | 44.50 | d | 33.38 | e | 53.83 | ||||||
2013 | 32.52 | d | 33.77 | f | 43.63 | d | 50.23 | d | 59.79 | g | 69.96 | c | 68.54 | c | 67.62 | e | 65.12 | e | 51.48 | b | 37.58 | f | 29.59 | d | 53.19 | c |
2014 | 29.00 | a | 35.29 | g | 40.11 | c | 50.46 | f | 59.37 | d | 69.21 | a | 71.39 | 71.07 | b | 62.97 | a | 55.45 | b | 38.12 | d | 38.43 | c | 53.51 | b | |
2015 | 28.56 | f | 31.37 | a | 40.55 | b | 51.65 | d | 57.90 | a | 66.96 | b | 71.71 | c | 70.03 | a | 66.91 | g | 56.14 | c | 42.58 | d | 35.22 | h | 54.32 | c |
2016 | 32.28 | b | 38.24 | d | 46.04 | e | 51.19 | d | 58.50 | a | 66.20 | e | 73.33 | g | 70.24 | f | 64.04 | c | 58.58 | e | 47.68 | h | 33.37 | d | 49.83 | c |
2017 | 32.62 | j | 40.00 | d | 48.89 | c | 54.96 | f | 59.17 | g | 68.52 | c | 71.23 | e | 67.58 | e | 65.44 | c | 51.04 | f | 43.80 | e | 32.83 | g | 57.92 | e |
2018 | 27.96 | d | 34.36 | f | 46.07 | d | 46.09 | g | 66.29 | g | 72.12 | d | 71.85 | e | 70.93 | c | 63.46 | d | 53.42 | e | 37.60 | e | 33.69 | e | 53.01 | c |
2019 | 31.39 | c | 37.58 | b | 43.16 | f | 50.85 | c | 59.96 | c | 66.56 | e | 70.07 | d | 75.04 | d | 68.40 | e | 47.93 | d | 37.00 | c | 35.03 | b | 52.71 | a |
2020 | 34.41 | b | 34.14 | 48.03 | a | 51.00 | c | 61.50 | e | 68.83 | f | 74.28 | b | 73.03 | 59.14 | b | 50.21 | b | 44.19 | c | 30.55 | b | 50.95 | a | ||
2021 | 31.08 | g | 27.60 | c | 43.45 | 49.82 | b | 58.80 | a | 68.32 | b | 69.33 | a | 68.16 | 65.24 | a | 53.93 | c | 41.80 | e | 40.71 | c | 53.38 | a | ||
2022 | 27.21 | c | 25.74 | e | 39.67 | d | 53.58 | f | 65.54 | g | 71.68 | b | 75.36 | f | 71.75 | g | 65.54 | d | 52.46 | g | 37.69 | q | 36.57 | j | 45.97 | g |
2023 | 32.58 | s | 30.36 | n | 44.23 | r | 48.29 | p | 60.24 | b | 68.33 | i | 75.38 | r | 76.00 | q | 69.85 | q | 54.67 | s | 42.23 | q | 37.50 | q | 60.24 | k |
2024 | 33.15 | r | 40.67 | q | 44.62 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 32.49 | 35.48 | 44.21 | 52.24 | 60.79 | 69.82 | 71.13 | 71.01 | 63.92 | 53.89 | 40.75 | 33.39 | 52.71 | |||||||||||||
S.D. | 3.49 | 4.11 | 3.36 | 3.64 | 2.80 | 2.26 | 2.25 | 2.86 | 3.29 | 3.05 | 4.17 | 3.89 | 2.74 | |||||||||||||
SKEW | -0.51 | -0.47 | -0.31 | -0.00 | 0.07 | -0.05 | 0.16 | -0.75 | -2.00 | -1.36 | -0.53 | -0.37 | -1.34 | |||||||||||||
MAX | 38.17 | 44.27 | 49.23 | 58.70 | 65.14 | 73.56 | 76.03 | 75.94 | 68.40 | 58.58 | 46.34 | 40.71 | 55.30 | |||||||||||||
MIN | 24.29 | 25.74 | 37.77 | 44.90 | 56.19 | 66.00 | 66.61 | 62.90 | 51.89 | 44.32 | 32.13 | 24.90 | 46.78 | |||||||||||||
YRS | 27 | 26 | 25 | 22 | 24 | 24 | 25 | 24 | 25 | 25 | 27 | 26 | 10 |