YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.17 | s | 49.04 | e | 39.19 | 32.41 | a | 21.96 | d | 35.65 | h | |
1955 | 16.17 | b | 21.85 | a | 27.13 | 32.69 | d | 42.19 | 52.62 | d | 59.61 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.11 | f | ||
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 | 61.77 | i | 59.52 | 46.93 | 39.58 | 26.63 | 23.42 | 39.22 | g | |||||
1962 | 18.13 | 26.46 | 29.03 | 40.83 | 43.48 | 52.27 | 57.61 | 56.29 | 49.93 | 42.26 | 32.53 | 24.87 | 39.48 | |||||||||||||
1963 | 17.10 | 34.07 | 31.26 | 33.60 | 48.29 | 49.20 | 57.45 | 56.45 | 54.27 | 46.81 | 32.13 | 24.71 | 40.44 | |||||||||||||
1964 | 25.13 | 22.66 | 28.48 | 35.27 | 43.39 | 51.70 | 59.97 | 57.63 | a | 44.34 | a | 39.42 | 27.30 | 28.29 | 38.63 | |||||||||||
1965 | 24.32 | 22.21 | 27.62 | g | 36.00 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 27.51 | i | ||
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 | 56.03 | a | ----- | z | 62.45 | 54.19 | i | 45.87 | h | 27.00 | i | 21.77 | a | 46.75 | i | |
1993 | 22.61 | c | 27.80 | c | 38.17 | b | 38.19 | c | 49.62 | e | 50.96 | c | 57.14 | c | 58.23 | a | 50.13 | g | 42.37 | d | 27.61 | b | 23.96 | d | 39.70 | a |
1994 | 24.10 | a | 26.04 | b | 35.23 | 41.28 | a | 49.18 | c | 56.20 | 64.41 | b | 62.33 | a | 52.29 | b | 39.61 | 26.24 | a | 26.86 | b | 41.98 | ||||
1995 | 31.37 | a | 32.39 | 35.37 | a | 37.64 | b | 44.04 | d | 51.81 | c | 60.03 | a | 60.16 | 53.12 | d | 41.96 | c | 35.69 | d | 30.90 | 42.87 | ||||
1996 | 29.10 | 32.21 | a | 34.27 | a | 39.83 | a | 47.87 | a | 56.53 | 64.70 | a | 60.47 | a | 50.71 | b | 42.06 | 33.79 | a | 30.13 | 43.47 | |||||
1997 | 25.84 | 29.46 | b | 35.13 | a | 36.69 | a | 50.24 | f | 53.92 | e | 58.73 | i | 61.50 | k | 52.91 | h | 37.64 | i | ----- | z | 22.41 | i | 36.21 | g | |
1998 | 27.22 | h | 29.67 | g | 32.85 | d | 35.46 | d | 40.21 | g | 50.29 | f | 62.33 | a | 60.28 | f | 55.08 | f | 38.96 | g | 30.52 | i | 19.50 | g | 43.55 | i |
1999 | 22.90 | j | 28.17 | j | 32.74 | h | 36.29 | i | 44.11 | l | 54.43 | i | 62.10 | j | 58.16 | l | 52.05 | i | 41.81 | j | 33.29 | m | 20.71 | j | ----- | z |
2000 | 27.00 | k | 31.70 | i | 31.41 | i | 41.90 | j | 47.95 | j | 57.45 | h | 59.70 | k | 60.91 | h | 52.50 | j | 41.43 | j | 27.32 | k | 25.19 | o | ----- | z |
2001 | 22.40 | k | 23.16 | i | 35.10 | j | 36.19 | i | 52.05 | i | 55.95 | j | 60.46 | g | 62.32 | i | 55.16 | k | 43.86 | i | 33.82 | m | 27.95 | l | ----- | z |
2002 | 24.29 | j | 28.11 | i | 30.19 | j | 40.50 | h | 43.45 | i | 57.70 | j | 64.91 | i | 58.95 | i | 52.64 | e | ----- | z | ----- | z | ----- | z | 52.64 | k |
2003 | 30.33 | j | 25.71 | n | 32.83 | s | 38.32 | h | 46.60 | k | 55.55 | h | 63.65 | 61.80 | a | 54.39 | b | 44.90 | 30.20 | 27.19 | 47.02 | f | ||||
2004 | 24.68 | 29.69 | 39.19 | 40.54 | d | 47.71 | 56.40 | 63.00 | 59.42 | 51.40 | 42.00 | 30.10 | 25.81 | 42.49 | ||||||||||||
2005 | 25.87 | a | 30.32 | 33.84 | 35.48 | a | 47.74 | 52.43 | 64.71 | 61.33 | a | 47.60 | 38.17 | a | 30.90 | 28.55 | 41.41 | |||||||||
2006 | 26.61 | 25.04 | 30.54 | g | 37.68 | b | 48.77 | 58.27 | 65.27 | a | 58.65 | 50.79 | a | 37.94 | 33.22 | l | 22.58 | 43.16 | b | |||||||
2007 | 16.28 | b | 27.96 | 34.43 | a | 39.87 | 48.23 | 56.57 | b | 65.30 | a | 61.87 | 51.41 | a | 40.47 | a | 32.07 | 23.58 | 41.50 | |||||||
2008 | 23.89 | c | 26.66 | 30.87 | 35.20 | 45.97 | a | 53.87 | 62.20 | a | 61.90 | a | 51.96 | b | 39.90 | a | 34.80 | 22.17 | a | 40.78 | ||||||
2009 | 23.16 | 30.25 | 30.61 | 36.70 | 50.90 | a | 53.93 | 64.13 | a | 60.48 | 57.21 | a | 40.03 | a | 32.41 | a | 21.39 | 41.77 | ||||||||
2010 | 29.59 | b | 31.43 | 31.68 | 35.87 | 41.29 | 55.83 | 64.72 | b | 60.23 | 52.50 | 45.81 | 31.23 | 32.03 | a | 42.68 | ||||||||||
2011 | 25.04 | f | 25.39 | 35.13 | a | 36.97 | 41.32 | c | 53.70 | 62.47 | a | 61.48 | 56.77 | 44.00 | 30.90 | 20.58 | 42.61 | a | ||||||||
2012 | 25.77 | 26.39 | a | 34.10 | a | 42.20 | 49.90 | 57.07 | a | 64.48 | 65.58 | 57.52 | a | 44.80 | a | 35.73 | 27.40 | a | 44.25 | |||||||
2013 | 18.84 | 26.75 | 37.60 | a | 40.70 | 47.29 | 59.03 | 65.84 | 61.16 | 55.24 | a | 38.71 | 32.36 | b | 19.68 | 41.93 | ||||||||||
2014 | 25.65 | 33.14 | 36.32 | 41.57 | 47.81 | 56.60 | 65.81 | 61.35 | 56.50 | 45.87 | 34.13 | 31.00 | a | 44.65 | ||||||||||||
2015 | 29.03 | 34.52 | a | 40.06 | 39.73 | 49.87 | 61.40 | 62.23 | 62.77 | ----- | z | ----- | z | ----- | z | ----- | z | 47.45 | d | |||||||
2016 | ----- | z | 31.41 | 42.19 | 41.47 | 46.94 | 59.52 | a | 62.39 | 62.37 | d | 51.83 | 43.57 | h | 34.50 | 25.92 | e | 45.85 | b | |||||||
2017 | 31.90 | u | 33.79 | 37.83 | a | 39.43 | 49.45 | 58.00 | a | 64.65 | 63.90 | 60.21 | p | ----- | z | ----- | z | ----- | z | 49.58 | e | |||||
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.81 | 53.97 | a | 41.48 | 30.50 | 27.65 | 42.88 | g | ||||
2019 | 29.55 | 28.50 | 33.68 | 43.27 | 45.61 | 56.50 | 62.71 | c | 63.55 | 52.27 | 35.13 | 31.90 | 30.39 | 42.75 | ||||||||||||
2020 | 28.13 | 28.17 | 34.00 | 42.77 | 50.03 | 56.03 | 64.06 | 66.00 | 55.53 | 42.90 | 30.69 | a | 24.42 | 43.56 | ||||||||||||
2021 | 26.97 | 28.59 | a | 30.84 | 40.83 | 50.10 | 62.77 | 68.71 | 63.39 | 56.83 | 42.23 | 36.07 | 27.39 | 44.56 | ||||||||||||
2022 | 25.74 | 24.57 | 36.61 | 39.17 | 45.81 | 57.43 | 66.23 | 65.06 | 59.27 | 42.84 | 28.07 | 27.26 | 43.17 | |||||||||||||
2023 | 26.32 | 25.00 | 30.65 | 39.53 | 47.32 | 54.50 | 66.23 | 62.32 | 53.13 | 42.52 | 31.38 | a | 29.32 | 42.35 | ||||||||||||
2024 | 29.35 | 31.41 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.38 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 24.79 | 28.47 | 34.16 | 38.55 | 47.04 | 55.56 | 63.30 | 61.30 | 52.84 | 41.59 | 31.57 | 25.90 | 42.24 | |||||||||||||
S.D. | 4.24 | 3.57 | 3.61 | 2.81 | 2.80 | 3.11 | 2.79 | 2.41 | 3.44 | 2.75 | 2.74 | 3.42 | 1.59 | |||||||||||||
SKEW | -0.73 | -0.07 | 0.13 | -0.25 | -0.73 | 0.18 | -0.74 | -0.18 | -0.37 | -0.09 | -0.26 | -0.00 | -0.51 | |||||||||||||
MAX | 31.37 | 34.52 | 42.19 | 43.27 | 50.90 | 62.77 | 68.71 | 66.00 | 59.27 | 46.81 | 36.07 | 32.03 | 44.65 | |||||||||||||
MIN | 16.17 | 21.85 | 27.13 | 32.69 | 41.29 | 49.20 | 57.14 | 56.29 | 44.34 | 35.13 | 26.24 | 19.68 | 38.63 | |||||||||||||
YRS | 27 | 30 | 28 | 30 | 27 | 29 | 28 | 30 | 28 | 27 | 27 | 29 | 20 |