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 | 19.16 | 24.55 | 26.80 | a | 46.00 | 52.45 | 61.23 | 66.03 | 63.74 | 57.30 | 43.90 | 27.33 | 27.48 | 43.00 | ||||||||||||
1949 | 17.42 | 27.57 | 34.00 | 41.87 | 51.39 | 59.13 | 65.00 | 61.97 | 56.43 | 42.90 | 35.07 | 24.13 | 43.07 | |||||||||||||
1950 | 26.48 | 30.18 | 30.48 | 40.73 | 49.87 | 61.13 | 63.16 | 60.10 | 55.67 | 49.29 | 29.47 | 23.90 | 43.37 | |||||||||||||
1951 | 21.19 | 26.57 | 30.68 | 38.10 | 51.03 | 58.70 | 68.10 | 65.45 | 54.57 | 44.03 | 28.47 | 25.71 | 42.72 | |||||||||||||
1952 | 28.68 | 28.10 | 31.65 | 41.93 | 50.87 | 65.23 | 64.39 | 65.29 | 55.50 | 41.26 | 27.73 | 23.23 | 43.65 | |||||||||||||
1953 | 29.06 | 24.00 | 35.84 | 38.07 | 47.84 | 65.80 | 65.97 | 63.74 | 55.07 | 46.06 | 33.70 | 21.94 | 43.92 | |||||||||||||
1954 | 25.97 | 32.25 | 30.94 | 45.77 | 50.77 | 62.63 | 68.03 | 65.13 | 60.87 | 46.58 | ----- | z | ----- | z | 48.89 | b | ||||||||||
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 | 28.16 | 40.90 | 52.13 | 57.30 | 64.03 | 63.23 | 56.73 | 45.26 | 33.07 | 26.03 | 46.68 | b | ||||||||||
1963 | 11.81 | 26.00 | 32.90 | 44.00 | 52.77 | 60.37 | 66.35 | 64.13 | 58.43 | 48.97 | 33.50 | 19.03 | 43.19 | |||||||||||||
1964 | 21.77 | 19.28 | 28.29 | 40.50 | 52.58 | 60.70 | 66.81 | 63.87 | 57.97 | 44.94 | 32.93 | 26.06 | 42.97 | |||||||||||||
1965 | 26.94 | 20.82 | 25.68 | 43.20 | 50.74 | 58.77 | 66.00 | 61.81 | 54.03 | 43.00 | 37.83 | 29.10 | 43.16 | |||||||||||||
1966 | 16.71 | 22.50 | 34.23 | 41.33 | 50.97 | 61.17 | 69.32 | 61.32 | 55.67 | 41.77 | 35.77 | 20.94 | 42.64 | |||||||||||||
1967 | 24.39 | 24.64 | 37.48 | 46.97 | 49.16 | 60.20 | 65.10 | 60.71 | 55.80 | 44.45 | 32.90 | 22.77 | 43.71 | |||||||||||||
1968 | 26.13 | 26.48 | 33.58 | 39.77 | 49.97 | 60.73 | 64.16 | 63.45 | 54.67 | 46.94 | 33.37 | 25.03 | 43.69 | |||||||||||||
1969 | 29.16 | 29.46 | 27.16 | 45.87 | 52.74 | 59.23 | 68.10 | 66.81 | 58.23 | 42.94 | 31.30 | 26.52 | 44.79 | |||||||||||||
1970 | 21.06 | 29.82 | 29.13 | 40.13 | 52.29 | 59.67 | 66.13 | 64.68 | 54.70 | 40.10 | 33.77 | 29.10 | 43.38 | |||||||||||||
1971 | 24.00 | 26.00 | 31.74 | 42.13 | 49.87 | 61.27 | 64.65 | 60.90 | 55.13 | 43.87 | 34.40 | 28.26 | 43.52 | |||||||||||||
1972 | 21.29 | 26.14 | 36.58 | 43.17 | 51.39 | 61.53 | 63.23 | 62.13 | 55.73 | 44.87 | 27.87 | 22.61 | 43.04 | |||||||||||||
1973 | 21.03 | 27.29 | 34.16 | 36.17 | 48.19 | 58.67 | 63.97 | 63.68 | 53.93 | 44.52 | 34.40 | 23.90 | 42.49 | |||||||||||||
1974 | 23.32 | 27.25 | 37.32 | 43.13 | 55.71 | 60.87 | 65.45 | 62.32 | 52.73 | 47.74 | 34.00 | 24.16 | 44.50 | |||||||||||||
1975 | 24.32 | 24.82 | 32.55 | 39.70 | 48.32 | 58.97 | 63.35 | 63.90 | 53.73 | 44.94 | 30.27 | 26.45 | 42.61 | |||||||||||||
1976 | 22.16 | 33.10 | 33.52 | 45.20 | 49.48 | 60.47 | 63.90 | 63.71 | 56.33 | 39.03 | 26.30 | 22.23 | 42.95 | |||||||||||||
1977 | 17.39 | 27.54 | 31.94 | 44.97 | 54.39 | 63.77 | 66.71 | 65.90 | 58.13 | 45.52 | 32.90 | 27.19 | 44.69 | |||||||||||||
1978 | 20.61 | 24.29 | 34.35 | 44.37 | 51.03 | 62.23 | 67.74 | 63.71 | 57.70 | 46.00 | 37.50 | 20.26 | 44.15 | |||||||||||||
1979 | 16.71 | 26.32 | 35.03 | 42.63 | 51.19 | 59.77 | 65.10 | 62.16 | 56.77 | 45.39 | 28.67 | 24.77 | 42.88 | |||||||||||||
1980 | 24.39 | 26.79 | 31.77 | 39.43 | 51.16 | 65.77 | 70.52 | 64.29 | 57.20 | 42.68 | 32.17 | 29.45 | 44.63 | |||||||||||||
1981 | 26.97 | 28.32 | 36.68 | 48.30 | 51.97 | 63.97 | 68.00 | 63.68 | 57.40 | 46.68 | 38.13 | 27.71 | 46.48 | |||||||||||||
1982 | 24.97 | 25.93 | 35.06 | 43.03 | 51.42 | 59.30 | 65.48 | ----- | z | 58.73 | ----- | z | ----- | z | ----- | z | 45.49 | d | ||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.50 | w | 56.40 | 45.61 | 26.53 | 19.48 | 37.01 | h | ||||
2001 | 20.55 | 27.57 | 33.65 | 44.00 | 49.58 | 59.47 | 67.03 | 63.10 | 54.67 | 42.65 | 36.70 | 24.55 | 43.63 | |||||||||||||
2002 | 24.65 | 23.04 | a | 27.03 | 44.83 | a | 49.63 | d | 63.67 | c | 65.58 | l | 65.83 | a | 57.74 | c | 42.84 | 31.23 | 24.45 | 41.36 | a | |||||
2003 | 23.68 | 25.75 | 33.58 | 43.13 | 53.03 | 58.50 | 67.52 | 65.87 | 56.07 | 45.71 | 35.07 | 26.23 | 44.51 | |||||||||||||
2004 | 25.54 | e | 23.00 | 39.03 | 41.87 | 52.84 | 59.70 | 62.77 | 60.61 | 56.40 | 45.23 | 31.80 | 25.10 | 43.66 | ||||||||||||
2005 | 28.03 | 31.36 | 30.48 | 39.90 | 50.26 | 59.13 | 63.67 | a | 62.61 | 58.20 | 43.74 | 31.17 | 21.58 | 43.34 | ||||||||||||
2006 | 25.10 | 22.18 | 33.81 | 44.80 | 54.42 | 63.87 | 66.10 | 64.71 | 51.63 | 43.26 | 31.43 | 23.74 | 43.75 | |||||||||||||
2007 | 18.58 | 24.93 | 35.00 | 38.87 | 49.45 | 58.13 | 64.48 | 67.39 | 59.07 | 45.00 | 30.70 | 24.84 | 43.04 | |||||||||||||
2008 | 21.97 | 25.52 | 32.03 | 39.50 | 49.39 | 61.47 | 65.52 | 63.00 | 55.50 | 44.03 | 32.47 | 24.94 | 42.94 | |||||||||||||
2009 | 21.87 | 29.39 | 33.71 | 40.27 | 52.43 | c | 60.96 | c | 64.71 | 63.00 | 53.70 | 39.74 | 33.00 | 18.03 | a | 42.57 | ||||||||||
2010 | 20.89 | d | 22.25 | 32.32 | 42.07 | 48.65 | 65.27 | 66.00 | 63.97 | 59.43 | 45.29 | 29.43 | 27.87 | 43.62 | ||||||||||||
2011 | 18.13 | 19.31 | b | 33.65 | 41.17 | 48.00 | 63.93 | 69.36 | c | 69.07 | a | 56.47 | 44.29 | 33.50 | 22.52 | 43.28 | ||||||||||
2012 | 26.94 | 26.50 | a | 36.86 | c | 46.93 | 54.77 | 66.27 | 69.74 | 66.87 | 57.87 | 44.71 | 36.27 | 27.03 | 46.73 | |||||||||||
2013 | 24.06 | 27.71 | 34.35 | 39.03 | 52.77 | 66.57 | 68.16 | 67.37 | d | 61.20 | 42.65 | 33.33 | 23.48 | 45.06 | ||||||||||||
2014 | 21.26 | 25.96 | 32.65 | 42.47 | 51.87 | 62.77 | 67.13 | 64.68 | 59.77 | 46.40 | a | 29.03 | 24.87 | 44.07 | ||||||||||||
2015 | 24.29 | 26.93 | 34.65 | 41.77 | 49.87 | 62.30 | 66.23 | 64.39 | 61.37 | 48.87 | 31.80 | 26.65 | 44.92 | |||||||||||||
2016 | 23.06 | 27.72 | 34.65 | 39.63 | 48.42 | 61.30 | 67.81 | 63.55 | 57.63 | 48.55 | 35.83 | 23.03 | a | 44.27 | ||||||||||||
2017 | 25.68 | 33.14 | 38.10 | a | 43.87 | 48.61 | 61.40 | 67.10 | 63.10 | 57.00 | 43.87 | 37.13 | 23.10 | 45.17 | ||||||||||||
2018 | 21.48 | 26.18 | 35.45 | 39.37 | 55.81 | 65.00 | 66.26 | 64.84 | 58.30 | 46.29 | 30.03 | 23.35 | 44.36 | |||||||||||||
2019 | 25.26 | 26.21 | 32.19 | 41.53 | 47.84 | 58.83 | 66.39 | 66.28 | f | 63.47 | 39.16 | 30.33 | 26.94 | 41.65 | a | |||||||||||
2020 | 27.03 | a | 26.24 | 39.29 | 40.43 | 54.16 | 64.47 | 68.81 | 67.18 | i | 54.17 | 41.81 | 37.83 | 24.03 | 43.48 | a | ||||||||||
2021 | 24.84 | 20.86 | 35.13 | 41.60 | 53.45 | 64.43 | 65.93 | a | 65.61 | 60.77 | 44.84 | 34.03 | 31.58 | 45.26 | ||||||||||||
2022 | 20.52 | 19.93 | 31.71 | 43.27 | 52.32 | 65.60 | 69.65 | 66.42 | 59.60 | 44.00 | 29.70 | 23.19 | 43.83 | |||||||||||||
2023 | 23.94 | 24.50 | 33.76 | b | 37.96 | b | 50.11 | c | 57.48 | a | 65.00 | 64.84 | 57.40 | 42.03 | 31.70 | 26.10 | 42.90 | |||||||||
2024 | 22.33 | g | 28.79 | 33.47 | a | 38.36 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 31.13 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 23.01 | 26.10 | 33.16 | 42.07 | 51.16 | 61.55 | 66.20 | 64.01 | 56.90 | 44.40 | 32.46 | 24.69 | 43.78 | |||||||||||||
S.D. | 3.62 | 3.21 | 3.08 | 2.64 | 2.05 | 2.54 | 1.91 | 1.91 | 2.36 | 2.36 | 3.07 | 2.77 | 0.98 | |||||||||||||
SKEW | -0.62 | -0.05 | -0.40 | 0.20 | 0.31 | 0.37 | 0.26 | 0.21 | 0.36 | -0.16 | -0.04 | -0.07 | 1.10 | |||||||||||||
MAX | 29.16 | 33.14 | 39.29 | 48.30 | 55.81 | 66.57 | 70.52 | 69.07 | 63.47 | 49.29 | 38.13 | 31.58 | 46.73 | |||||||||||||
MIN | 11.81 | 19.28 | 25.68 | 36.17 | 47.84 | 57.30 | 62.77 | 60.10 | 51.63 | 39.03 | 26.30 | 18.03 | 42.49 | |||||||||||||
YRS | 50 | 51 | 52 | 51 | 51 | 51 | 50 | 48 | 52 | 51 | 50 | 50 | 45 |