YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 46.87 | 39.87 | 30.32 | 39.02 | i | |||
1965 | 32.35 | 29.71 | 32.68 | 51.17 | 59.23 | 65.57 | 66.81 | 64.00 | 60.23 | 44.35 | 40.63 | 35.74 | 48.54 | |||||||||||||
1966 | 24.71 | 26.04 | 40.39 | 47.77 | 57.65 | 66.20 | 71.35 | 65.77 | 61.90 | 45.53 | a | 40.87 | 25.29 | 47.79 | ||||||||||||
1967 | 24.97 | 29.86 | 43.77 | 54.73 | 52.84 | 66.30 | 65.87 | 62.52 | 58.59 | a | 45.87 | 41.27 | 26.35 | 47.74 | ||||||||||||
1968 | 32.71 | 29.59 | 39.39 | 46.10 | 57.84 | 63.37 | 66.10 | 67.43 | a | 56.90 | a | 50.16 | 37.48 | a | 27.97 | 47.92 | ||||||||||
1969 | 32.77 | 33.36 | 32.42 | 50.13 | 54.77 | 64.97 | 70.55 | 67.93 | a | 60.87 | 51.48 | 35.93 | a | 32.03 | 48.94 | |||||||||||
1970 | 24.60 | a | 32.46 | 33.68 | 47.00 | 53.06 | 63.27 | 66.58 | 65.94 | 61.97 | 45.32 | 31.17 | 34.52 | 46.63 | ||||||||||||
1971 | 28.87 | 30.29 | 34.61 | 47.57 | 57.19 | 65.87 | 65.74 | 63.35 | 59.30 | 52.13 | 39.53 | 34.94 | 48.28 | |||||||||||||
1972 | 27.65 | 30.24 | 43.52 | 53.17 | 57.48 | 64.80 | 67.10 | 65.19 | 63.47 | 50.35 | 32.00 | 25.55 | 48.38 | |||||||||||||
1973 | 25.55 | 29.96 | 39.55 | 43.57 | 53.23 | 61.67 | 67.32 | 64.03 | 61.50 | 49.94 | 42.33 | 26.77 | 47.12 | |||||||||||||
1974 | 26.10 | 28.04 | 46.39 | 48.13 | 60.77 | 63.17 | 66.74 | 64.87 | 55.20 | 50.06 | 39.07 | 29.19 | 48.14 | |||||||||||||
1975 | 30.26 | 30.18 | 35.03 | 45.27 | 55.13 | a | 64.63 | 63.52 | 64.03 | 53.83 | 46.81 | 35.50 | 28.39 | 46.05 | ||||||||||||
1976 | 21.68 | 33.17 | 38.61 | 49.55 | a | 51.81 | 64.07 | 64.35 | 61.84 | 59.30 | 41.23 | a | 31.57 | 24.87 | 45.17 | |||||||||||
1977 | 22.32 | 31.44 | a | 34.45 | 46.97 | 60.81 | 63.77 | 65.61 | 67.68 | 63.03 | 48.58 | 33.30 | 27.74 | 47.14 | ||||||||||||
1978 | 22.23 | a | 25.25 | 36.84 | 51.33 | 57.03 | 64.37 | 67.26 | 64.06 | 61.23 | 46.52 | 41.07 | 26.03 | 46.94 | ||||||||||||
1979 | 20.61 | 26.04 | 38.80 | a | 49.67 | 54.23 | 62.17 | 67.26 | 63.81 | 55.77 | 47.81 | 30.87 | 29.06 | 45.51 | ||||||||||||
1980 | 29.42 | 29.93 | 34.77 | 42.53 | 57.29 | c | 68.47 | 69.74 | 67.74 | 63.20 | 43.71 | 34.34 | a | 32.35 | 47.79 | |||||||||||
1981 | 30.06 | 33.82 | 39.16 | 52.13 | 55.10 | 65.17 | 67.94 | 64.71 | 59.41 | a | 52.10 | 36.20 | 29.23 | 48.75 | ||||||||||||
1982 | 25.10 | 28.57 | ----- | z | 48.73 | 56.63 | a | 63.21 | a | 68.19 | 68.29 | 60.67 | 48.32 | 38.24 | a | 30.48 | 48.77 | a | ||||||||
1983 | 26.73 | a | 32.29 | 37.53 | a | 43.90 | 54.77 | 62.43 | 68.10 | 66.39 | 61.47 | 52.84 | 40.17 | 20.68 | 47.27 | |||||||||||
1984 | 26.19 | 28.90 | 37.68 | 44.93 | 57.93 | a | 69.19 | c | 66.07 | c | 66.00 | c | 57.33 | c | 51.16 | 38.88 | f | 33.77 | i | 50.54 | b | |||||
1985 | 25.11 | c | 30.74 | e | 43.64 | c | 51.43 | b | 57.62 | e | 64.04 | e | 64.77 | 66.87 | 60.87 | 52.93 | a | 41.40 | 23.29 | 48.56 | ||||||
1986 | 26.94 | 35.22 | a | 38.77 | 53.63 | 57.87 | 65.10 | 65.84 | 65.71 | 62.37 | 49.19 | 35.83 | 29.06 | 48.80 | ||||||||||||
1987 | 26.10 | 35.81 | a | 34.23 | 40.97 | 55.07 | a | 62.33 | 66.48 | 65.71 | 54.13 | 47.94 | 33.13 | 26.10 | b | 45.67 | ||||||||||
1988 | 21.86 | j | 27.16 | d | 33.77 | 40.10 | 54.19 | 62.00 | 65.42 | 64.73 | a | 57.80 | 46.53 | a | 33.67 | 26.90 | 46.57 | a | ||||||||
1989 | 29.43 | a | 29.14 | 38.46 | c | 48.00 | 61.45 | 61.76 | a | 64.03 | 61.67 | a | 50.47 | 42.07 | a | 31.76 | a | 18.90 | 44.76 | |||||||
1990 | 26.81 | 29.14 | 36.65 | 46.53 | 51.84 | 67.43 | 64.13 | 63.30 | k | 61.17 | 43.84 | 37.87 | 25.94 | 44.67 | a | |||||||||||
1991 | 28.48 | 33.54 | 39.10 | 44.76 | a | 59.39 | 65.96 | d | 66.35 | 65.48 | b | 58.83 | 48.66 | b | 33.60 | 32.93 | a | 48.09 | ||||||||
1992 | 27.90 | 34.31 | 38.57 | a | 47.50 | 54.79 | b | 62.63 | 67.50 | g | 63.29 | 59.37 | 45.90 | 33.68 | b | 31.80 | a | 45.43 | a | |||||||
1993 | 29.00 | 31.14 | 37.59 | b | 44.73 | 53.70 | a | 66.43 | b | 71.19 | 66.29 | 56.57 | 45.48 | 30.87 | 31.68 | 47.06 | ||||||||||
1994 | 29.94 | 29.29 | 40.32 | 44.53 | 58.03 | 67.24 | a | 68.90 | 67.68 | 57.47 | 51.17 | a | 39.03 | 31.10 | a | 48.72 | ||||||||||
1995 | 30.94 | 33.46 | 38.48 | ----- | z | 57.45 | 63.87 | 68.68 | 67.58 | 60.80 | 46.19 | 37.86 | b | 29.65 | 48.63 | a | ||||||||||
1996 | 23.42 | 30.67 | b | 35.77 | a | 47.63 | 64.87 | 67.70 | 70.87 | 68.39 | 59.17 | a | 46.61 | 37.72 | a | 29.97 | a | 48.57 | ||||||||
1997 | 28.72 | b | 34.68 | 42.09 | h | 41.89 | c | 55.30 | a | 64.24 | a | 68.52 | 67.45 | 61.90 | 49.90 | 34.83 | a | 27.90 | a | 48.67 | a | |||||
1998 | 32.48 | 35.04 | 37.61 | 44.23 | 61.55 | 70.20 | 72.03 | 68.39 | 63.90 | a | 56.68 | 42.90 | a | 31.13 | 51.34 | |||||||||||
1999 | 30.58 | 36.93 | 41.84 | 50.00 | 59.50 | c | ----- | z | 68.50 | c | 68.33 | a | 60.70 | 46.84 | 39.70 | 31.55 | 48.59 | a | ||||||||
2000 | 31.97 | 44.74 | b | 44.32 | 51.70 | 66.16 | 67.97 | 70.40 | a | 68.71 | 58.97 | a | 54.35 | 35.17 | 28.97 | 51.95 | ||||||||||
2001 | 29.26 | 37.04 | 39.06 | 52.57 | 61.40 | a | 68.87 | 71.60 | a | 69.84 | 60.10 | a | 47.50 | a | 44.27 | 31.16 | 51.06 | |||||||||
2002 | 30.23 | 29.04 | 34.48 | 53.53 | 60.23 | a | 67.67 | c | 68.94 | 70.40 | a | 60.50 | 51.83 | a | 36.23 | 31.26 | 49.53 | |||||||||
2003 | 28.61 | 33.14 | 40.97 | b | 48.80 | 60.10 | a | 65.00 | a | 67.58 | 68.20 | a | 59.77 | 51.83 | a | 42.53 | 30.65 | 49.77 | ||||||||
2004 | 34.03 | 32.83 | 48.23 | a | 49.21 | b | 59.61 | 66.69 | a | 67.37 | a | 65.50 | a | 60.10 | a | 54.12 | e | 40.03 | 30.35 | 50.67 | ||||||
2005 | 34.83 | b | 36.74 | e | 37.17 | a | 44.40 | j | 57.97 | 65.07 | 67.42 | 63.68 | 59.72 | a | 48.53 | a | 36.80 | 25.77 | 48.52 | a | ||||||
2006 | 28.32 | 30.25 | 41.87 | 50.68 | b | 57.62 | b | 62.90 | 66.79 | b | 68.13 | p | 56.80 | 47.94 | 36.03 | 26.82 | c | 46.00 | a | |||||||
2007 | 27.40 | a | 28.18 | 42.26 | 44.63 | 57.16 | 62.90 | 64.23 | 66.19 | 61.63 | 48.13 | 37.50 | 26.19 | d | 47.20 | |||||||||||
2008 | 24.71 | 28.62 | c | 38.25 | g | 46.00 | 56.58 | 68.67 | 66.13 | 64.52 | 53.07 | c | 44.23 | a | 32.62 | a | 26.41 | b | 46.51 | a | ||||||
2009 | 23.46 | e | 30.56 | c | 41.52 | 44.25 | b | 57.77 | 66.20 | 67.68 | 65.94 | 57.07 | a | 46.74 | 33.38 | a | 25.47 | a | 46.67 | |||||||
2010 | 26.42 | 29.04 | d | 34.80 | a | 47.90 | 54.64 | c | 68.23 | 68.06 | 66.06 | 60.80 | 45.84 | 34.47 | 29.29 | 47.13 | ||||||||||
2011 | 23.43 | a | 23.57 | e | 42.97 | 49.80 | 58.00 | 70.27 | 69.61 | 70.06 | 56.90 | a | 47.29 | 36.77 | 30.03 | 48.22 | ||||||||||
2012 | 29.43 | a | 34.14 | 43.65 | 50.96 | b | 59.40 | a | 64.13 | 65.46 | c | 65.45 | 58.63 | 46.71 | 36.71 | b | 29.19 | 48.66 | ||||||||
2013 | 30.00 | a | 28.54 | 36.26 | 43.82 | b | 55.14 | b | 66.80 | 64.48 | 65.39 | 59.20 | 49.52 | b | 34.83 | a | 27.19 | 46.76 | ||||||||
2014 | 22.66 | b | 29.93 | a | 35.00 | 46.43 | 55.13 | 65.41 | a | 65.39 | c | 65.58 | 62.20 | 49.94 | 35.76 | e | 34.93 | b | 47.36 | |||||||
2015 | 27.48 | 30.64 | 37.55 | 48.59 | c | 56.58 | 61.87 | 64.68 | f | 66.87 | a | 62.55 | a | 50.46 | e | 39.53 | 30.93 | a | 46.64 | a | ||||||
2016 | 28.55 | 30.26 | b | 42.93 | a | 48.27 | 56.32 | c | 59.85 | d | 70.17 | a | 67.67 | a | 62.33 | c | 52.50 | c | 45.96 | d | 32.00 | g | 51.35 | a | ||
2017 | 30.79 | b | 37.81 | a | 44.46 | c | 49.70 | 53.93 | b | 65.07 | a | 67.25 | c | 66.43 | a | 59.04 | b | 44.84 | f | 40.81 | c | 28.74 | 49.46 | a | ||
2018 | 22.68 | 32.54 | 40.59 | d | 43.27 | 63.46 | c | 71.19 | c | 68.47 | a | 68.00 | b | 62.57 | 52.69 | b | 34.52 | e | 31.10 | a | 49.26 | |||||
2019 | 29.93 | a | 34.00 | 37.10 | a | 45.54 | b | 57.16 | 62.61 | b | 65.71 | 69.37 | a | 65.68 | b | 45.35 | 31.86 | a | 29.17 | a | 47.79 | |||||
2020 | 30.23 | a | 30.55 | 48.45 | 47.13 | 55.66 | b | 63.77 | 71.19 | 69.00 | 55.88 | e | 45.20 | a | 39.54 | b | 25.03 | a | 48.47 | |||||||
2021 | 28.23 | a | 25.50 | b | 37.77 | 45.36 | b | 54.28 | b | 66.57 | 66.52 | b | 67.26 | d | 58.47 | 49.19 | d | 36.68 | b | 36.68 | c | 47.71 | ||||
2022 | 22.47 | a | 23.46 | b | 32.00 | 50.90 | 63.28 | b | 70.38 | a | 72.71 | 70.79 | c | 61.52 | c | 48.59 | b | 36.76 | a | 32.10 | b | 48.75 | ||||
2023 | 30.55 | b | 30.50 | 40.97 | 46.68 | b | 60.17 | a | 67.00 | a | 71.81 | 71.32 | 68.21 | a | 48.87 | a | 41.30 | 33.93 | b | 50.94 | ||||||
2024 | 26.55 | 34.59 | 39.65 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.60 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 27.68 | 31.19 | 38.91 | 47.65 | 57.38 | 65.32 | 67.59 | 66.41 | 59.70 | 48.45 | 37.04 | 29.08 | 48.08 | |||||||||||||
S.D. | 3.33 | 3.69 | 3.87 | 3.37 | 3.11 | 2.54 | 2.30 | 2.21 | 3.07 | 3.15 | 3.62 | 3.48 | 1.57 | |||||||||||||
SKEW | -0.12 | 0.67 | 0.40 | -0.02 | 0.58 | 0.32 | 0.41 | 0.04 | -0.36 | 0.17 | 0.19 | -0.29 | 0.33 | |||||||||||||
MAX | 34.83 | 44.74 | 48.45 | 54.73 | 66.16 | 71.19 | 72.71 | 71.32 | 68.21 | 56.68 | 45.96 | 36.68 | 51.95 | |||||||||||||
MIN | 20.61 | 23.46 | 32.00 | 40.10 | 51.81 | 59.85 | 63.52 | 61.67 | 50.47 | 41.23 | 30.87 | 18.90 | 44.76 | |||||||||||||
YRS | 59 | 60 | 57 | 57 | 59 | 58 | 57 | 57 | 59 | 59 | 59 | 58 | 45 |