YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 25.92 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.92 | k |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.42 | ----- | z | ----- | z | 40.42 | k | |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | 48.77 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.77 | k | |
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 | 38.84 | ----- | z | ----- | z | 38.84 | k | |
1977 | ----- | z | ----- | z | ----- | z | 44.22 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.22 | k |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | 22.64 | 34.23 | 43.17 | a | ----- | z | ----- | z | ----- | z | 61.52 | b | 57.11 | b | 43.60 | a | 27.72 | a | 26.06 | 39.51 | d | |||
1980 | 25.39 | 27.07 | b | 28.42 | 39.29 | b | 51.63 | a | 66.28 | a | ----- | z | 67.11 | c | 60.66 | a | 43.13 | a | ----- | z | ----- | z | 45.44 | c | ||
1981 | 25.48 | ----- | z | 35.97 | a | ----- | z | 51.63 | a | ----- | z | ----- | z | ----- | z | 57.37 | 48.93 | c | 36.23 | ----- | z | 42.60 | f | |||
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 | 23.81 | 30.04 | d | 34.37 | a | 42.57 | 54.45 | 62.21 | b | 65.39 | c | 63.27 | a | 55.07 | 49.10 | 28.57 | 21.27 | a | 44.18 | |||||||
2001 | 24.00 | a | 28.00 | 33.33 | d | 43.87 | 52.57 | c | 62.90 | 67.61 | 65.10 | a | 57.20 | 42.45 | 37.97 | 26.53 | a | 45.13 | ||||||||
2002 | 23.90 | 23.64 | 26.77 | 45.07 | b | 51.10 | j | 63.34 | a | 65.48 | b | 66.50 | a | 56.30 | 46.19 | e | 31.07 | b | 25.10 | 43.03 | a | |||||
2003 | 22.65 | 24.93 | 33.23 | 46.28 | l | 52.00 | 59.07 | 64.68 | 65.48 | 55.17 | f | 47.65 | 32.59 | c | 23.58 | e | 42.58 | b | ||||||||
2004 | 25.48 | 25.66 | 40.87 | 43.40 | 53.23 | 61.45 | a | 63.61 | c | 62.13 | 56.27 | 47.57 | c | 35.10 | 23.97 | 44.89 | ||||||||||
2005 | 28.32 | 31.93 | 32.87 | 40.40 | 53.06 | 62.57 | 64.35 | 64.50 | g | 59.24 | a | 47.03 | 30.93 | b | 22.39 | 43.01 | a | |||||||||
2006 | 26.13 | 25.19 | a | 36.74 | 45.82 | h | 54.48 | 63.13 | 66.35 | 65.87 | 54.19 | c | 45.93 | a | 34.89 | l | 25.64 | c | 46.37 | b | ||||||
2007 | 22.70 | a | 24.29 | 40.03 | a | 38.93 | 52.13 | h | 59.57 | 63.30 | a | 65.81 | 60.13 | 46.97 | 33.07 | 26.45 | 43.75 | a | ||||||||
2008 | 21.68 | 25.97 | 32.06 | 39.13 | 51.48 | 63.16 | e | 64.86 | b | 64.16 | 55.03 | 44.90 | a | 31.76 | a | 24.35 | 43.21 | |||||||||
2009 | 21.45 | 28.00 | 34.32 | 39.24 | a | 53.11 | d | 63.23 | 65.29 | 63.84 | 55.03 | 42.55 | 33.37 | 20.42 | 43.32 | |||||||||||
2010 | 22.23 | 25.39 | 33.25 | c | 43.17 | 51.58 | 65.77 | 65.48 | 64.74 | 59.83 | 45.71 | 30.07 | 26.16 | 44.45 | ||||||||||||
2011 | 18.77 | 20.50 | 35.03 | 43.77 | 50.42 | 66.37 | 70.10 | 69.71 | 55.97 | 45.68 | 32.53 | 26.23 | 44.59 | |||||||||||||
2012 | 24.81 | 27.66 | 39.35 | 47.80 | 56.23 | 64.60 | 67.48 | 66.10 | 58.00 | 44.35 | 35.33 | 25.19 | 46.41 | |||||||||||||
2013 | 25.10 | 26.46 | 32.26 | 36.13 | 51.19 | 64.80 | 65.29 | 65.26 | 59.00 | 43.35 | 31.77 | 21.58 | 43.52 | |||||||||||||
2014 | 17.26 | 23.46 | 28.10 | 40.37 | 50.26 | 63.53 | 65.29 | 65.03 | 60.27 | 46.26 | 29.20 | 29.23 | 43.19 | |||||||||||||
2015 | 23.94 | 26.21 | 33.26 | 43.63 | 52.55 | 63.00 | 66.23 | 63.10 | 62.00 | 49.77 | 34.50 | 27.61 | 45.48 | |||||||||||||
2016 | 25.77 | 29.38 | 38.90 | 43.40 | 52.03 | 65.30 | 69.94 | 65.16 | 59.67 | 47.61 | 38.53 | 25.23 | 46.74 | |||||||||||||
2017 | 26.23 | 31.50 | 38.06 | 45.80 | 50.58 | 63.53 | 65.74 | 63.48 | 57.47 | 45.61 | 36.90 | 25.16 | 45.84 | |||||||||||||
2018 | 18.84 | 25.75 | 36.29 | 39.27 | 58.94 | 65.83 | 67.03 | 65.39 | 58.80 | 47.58 | 30.77 | 26.42 | 45.08 | |||||||||||||
2019 | 25.06 | 26.39 | 32.39 | 43.37 | 52.58 | 61.97 | 66.87 | 67.65 | 63.47 | 40.65 | 30.37 | 28.68 | 44.95 | |||||||||||||
2020 | 27.10 | 25.41 | 40.55 | 42.13 | 54.39 | 63.53 | 70.29 | 67.23 | 53.20 | 42.00 | 37.80 | 24.23 | 45.65 | |||||||||||||
2021 | 25.84 | 20.29 | 33.84 | 41.20 | 52.90 | 64.47 | 66.00 | 65.39 | 59.50 | 46.06 | 33.43 | 30.87 | 44.98 | |||||||||||||
2022 | 19.48 | 18.86 | 30.84 | 42.97 | 55.77 | 65.70 | 70.06 | 67.16 | 59.87 | 48.03 | 32.77 | 27.39 | 44.91 | |||||||||||||
2023 | 27.29 | 27.57 | 34.94 | 40.53 | 55.26 | 63.00 | 67.10 | 68.68 | 61.93 | 47.84 | 35.03 | 28.81 | 46.50 | |||||||||||||
2024 | 22.19 | 30.76 | 35.90 | 44.10 | 57.50 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.24 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 23.74 | 26.04 | 34.21 | 42.19 | 52.84 | 63.53 | 66.41 | 65.39 | 58.18 | 45.37 | 33.10 | 25.54 | 44.90 | |||||||||||||
S.D. | 2.80 | 3.24 | 3.89 | 2.59 | 2.20 | 1.87 | 2.00 | 1.93 | 2.59 | 2.79 | 2.99 | 2.53 | 1.08 | |||||||||||||
SKEW | -0.66 | -0.24 | -0.24 | -0.22 | 0.77 | -0.53 | 0.71 | 0.11 | 0.00 | -0.58 | 0.17 | -0.09 | -0.06 | |||||||||||||
MAX | 28.32 | 31.93 | 40.87 | 47.80 | 58.94 | 66.37 | 70.29 | 69.71 | 63.47 | 49.77 | 38.53 | 30.87 | 46.74 | |||||||||||||
MIN | 17.26 | 18.86 | 25.92 | 36.13 | 48.77 | 59.07 | 63.30 | 61.52 | 53.20 | 38.84 | 27.72 | 20.42 | 43.19 | |||||||||||||
YRS | 27 | 27 | 29 | 26 | 25 | 25 | 24 | 25 | 26 | 29 | 25 | 25 | 19 |