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 | 47.20 | t | 53.13 | 60.29 | a | 66.15 | a | 67.58 | 61.65 | 53.53 | a | 47.17 | 47.24 | 57.09 | d | |||||
1951 | 39.82 | 42.41 | 40.76 | 52.14 | a | 54.76 | 62.15 | 65.35 | 63.82 | 61.88 | 52.65 | 45.88 | 37.98 | 51.63 | ||||||||||||
1952 | 37.87 | 42.36 | 42.02 | 49.62 | 53.95 | 56.27 | 64.48 | 64.00 | 62.40 | 56.21 | 38.57 | 40.40 | 50.68 | |||||||||||||
1953 | 44.05 | 42.46 | 42.97 | 47.93 | a | 51.40 | 55.20 | 63.66 | 63.89 | 61.27 | 53.33 | a | 50.52 | b | 42.55 | 51.60 | ||||||||||
1954 | 40.88 | a | 44.52 | a | 42.17 | a | 49.12 | 54.34 | 55.45 | 60.75 | a | 59.52 | 57.17 | a | 49.90 | 48.40 | 39.42 | 50.14 | ||||||||
1955 | 37.92 | 38.05 | 39.89 | 43.10 | 51.79 | 59.68 | 61.15 | 62.95 | 59.27 | 53.02 | 43.50 | a | 42.12 | a | 49.37 | |||||||||||
1956 | 41.52 | 36.17 | 43.19 | 49.47 | 55.81 | 57.62 | 65.27 | 63.53 | 60.67 | a | 51.21 | 42.82 | b | 40.71 | 50.67 | |||||||||||
1957 | 32.40 | 41.41 | 45.67 | b | 50.37 | 56.44 | 60.73 | 62.68 | a | 62.38 | a | 63.32 | 51.52 | 42.77 | 42.24 | 50.99 | ||||||||||
1958 | 42.35 | 48.73 | 43.74 | 48.45 | 59.06 | 61.47 | 68.47 | 68.06 | 60.50 | 53.71 | 46.03 | 46.44 | 53.92 | |||||||||||||
1959 | 43.44 | 40.86 | 44.98 | 50.40 | 51.65 | 60.07 | 65.85 | 63.89 | 58.33 | 53.48 | 44.72 | 40.56 | 51.52 | |||||||||||||
1960 | 38.79 | 41.79 | 46.48 | 49.63 | 51.92 | 60.25 | 66.19 | 62.42 | 59.60 | a | 52.70 | a | 44.73 | 39.92 | 51.20 | |||||||||||
1961 | 42.94 | 46.79 | 45.58 | 49.07 | 53.87 | 62.60 | 65.39 | 67.68 | 57.05 | 51.81 | 41.97 | 41.57 | a | 52.19 | ||||||||||||
1962 | 36.31 | 41.61 | 43.00 | 51.45 | 50.53 | 58.67 | 63.81 | 63.32 | 61.40 | 51.97 | 47.05 | 41.40 | a | 50.88 | ||||||||||||
1963 | 33.02 | 48.59 | 44.63 | 45.92 | 54.10 | 58.14 | a | 60.24 | 63.55 | 63.75 | 53.31 | 46.35 | 41.06 | 51.05 | ||||||||||||
1964 | 41.16 | 40.03 | 42.69 | 46.08 | 50.74 | 57.05 | 63.26 | 62.55 | 57.82 | 53.77 | 42.47 | 40.74 | 49.86 | |||||||||||||
1965 | 40.05 | a | 43.04 | 44.92 | 50.37 | 51.13 | 57.72 | 65.03 | 64.94 | 58.13 | 55.34 | 48.23 | 38.92 | 51.48 | ||||||||||||
1966 | 40.00 | 40.55 | 44.47 | 50.32 | 53.48 | 59.45 | 63.13 | 64.21 | 62.28 | 52.34 | 45.67 | 43.21 | 51.59 | |||||||||||||
1967 | 41.68 | 42.80 | a | 43.58 | 44.90 | 53.73 | 61.82 | 66.45 | 69.39 | 64.12 | a | 53.15 | 46.50 | 38.94 | 52.25 | |||||||||||
1968 | 40.47 | 47.29 | 47.50 | 47.05 | 53.42 | 60.23 | 65.13 | 63.35 | 59.93 | 50.98 | 45.88 | a | 39.71 | 51.75 | ||||||||||||
1969 | 36.02 | 39.07 | 45.23 | 48.05 | 56.84 | 61.35 | 62.60 | 61.95 | 60.18 | 50.18 | 44.75 | 42.92 | 50.76 | |||||||||||||
1970 | 41.98 | 44.66 | 45.45 | 44.88 | 53.39 | 62.43 | 65.63 | 63.94 | 56.88 | a | 50.29 | 45.27 | 39.73 | 51.21 | ||||||||||||
1971 | 38.79 | 41.77 | 41.79 | 46.57 | 53.97 | 56.86 | a | 64.68 | 66.81 | 58.07 | 49.40 | 43.07 | 38.29 | 50.00 | ||||||||||||
1972 | 38.31 | 43.47 | 47.56 | 45.87 | 55.15 | 59.22 | 66.74 | 66.44 | 57.20 | 50.50 | 45.88 | 35.23 | 50.96 | |||||||||||||
1973 | 38.47 | 44.04 | 43.35 | a | 48.72 | 55.92 | 60.10 | 65.40 | 62.45 | 60.65 | 51.68 | 43.50 | 43.74 | 51.50 | ||||||||||||
1974 | 36.16 | 40.41 | 45.03 | 47.77 | 52.27 | 59.93 | 64.35 | 65.76 | 64.00 | 52.50 | 46.52 | 42.15 | 51.40 | |||||||||||||
1975 | 42.21 | 41.62 | 42.55 | 43.93 | 52.85 | a | 58.38 | 65.24 | 61.68 | 62.14 | a | 52.53 | 43.03 | 42.05 | 50.69 | |||||||||||
1976 | 41.13 | 40.84 | 42.02 | 46.17 | 53.61 | 55.50 | 64.05 | 63.05 | 61.62 | 53.11 | 47.15 | 37.94 | 50.52 | |||||||||||||
1977 | 38.19 | 44.75 | 42.56 | 49.23 | 50.35 | 60.05 | 63.00 | 69.10 | 58.34 | a | 52.84 | 44.32 | 43.21 | 51.33 | ||||||||||||
1978 | 42.58 | a | 42.08 | p | 51.36 | m | 48.10 | a | 51.53 | a | 60.97 | 63.66 | 63.81 | 57.63 | 53.65 | 40.02 | 35.94 | 51.79 | b | |||||||
1979 | 31.03 | 41.11 | a | 47.60 | a | 48.50 | a | 54.89 | 60.34 | a | 65.59 | c | 63.84 | 62.88 | 56.10 | 42.05 | 42.69 | 51.39 | ||||||||
1980 | 37.10 | 44.26 | 44.60 | a | 50.63 | c | 52.58 | 55.98 | 63.59 | b | 61.29 | b | 59.65 | 54.23 | 46.60 | a | 42.94 | 51.12 | ||||||||
1981 | 41.85 | 43.19 | a | 45.55 | b | 48.70 | 53.37 | 58.75 | 63.33 | d | 66.77 | 60.86 | b | 51.18 | 46.79 | b | 42.58 | 51.91 | ||||||||
1982 | 37.05 | c | 41.35 | a | 44.10 | a | 45.32 | 52.80 | d | 60.68 | 63.05 | b | 64.25 | a | 59.07 | a | 53.32 | a | 42.17 | 40.02 | 50.26 | |||||
1983 | 42.56 | 45.55 | 47.25 | a | 47.72 | 54.71 | b | 56.93 | b | 61.60 | 64.34 | b | 57.60 | a | 52.48 | b | 46.05 | 36.88 | a | 51.14 | ||||||
1984 | 40.45 | 43.29 | 47.40 | 45.81 | a | 53.32 | c | 57.22 | c | 64.36 | b | 64.17 | d | 58.90 | a | 49.93 | b | 43.27 | d | 37.52 | 50.47 | |||||
1985 | 36.10 | a | 39.04 | c | 41.29 | b | 50.80 | b | 53.97 | 60.97 | a | 68.57 | a | 64.34 | 57.02 | 51.12 | a | 36.34 | b | 34.25 | a | 49.48 | ||||
1986 | 42.73 | 44.04 | a | 49.84 | 48.00 | 54.95 | a | 63.68 | 62.17 | a | 68.90 | 57.71 | a | 53.17 | d | 45.74 | a | 38.90 | 52.49 | |||||||
1987 | 38.50 | a | 43.00 | 46.27 | 51.82 | b | 57.07 | b | 62.18 | b | 62.80 | c | 63.96 | c | 60.34 | a | 54.80 | a | 45.16 | e | 38.37 | d | 52.02 | |||
1988 | 38.72 | b | 42.58 | c | 44.20 | c | 48.63 | d | 51.85 | d | 57.83 | c | 64.76 | 63.50 | a | 59.48 | c | 55.84 | b | 44.39 | c | 38.98 | d | 50.90 | ||
1989 | 39.28 | b | 32.60 | d | 43.17 | d | 52.61 | c | 53.64 | c | 60.37 | 62.04 | c | 61.79 | c | 60.54 | e | 51.13 | d | 44.41 | c | 37.77 | g | 51.05 | a | |
1990 | 40.90 | b | 39.44 | d | 47.68 | a | 51.94 | c | 53.30 | a | 59.02 | 67.39 | 66.45 | a | 62.85 | d | 50.63 | e | 44.83 | g | 32.04 | e | 51.97 | a | ||
1991 | 36.85 | e | 47.40 | b | 41.96 | d | 46.97 | a | 51.29 | c | 56.92 | 66.43 | b | 67.43 | b | 63.29 | b | 53.19 | b | 46.06 | e | 39.89 | 51.47 | |||
1992 | 42.42 | a | 47.41 | a | 48.97 | b | 53.37 | d | 59.83 | b | 63.92 | 66.17 | b | 67.22 | a | 61.24 | c | 54.12 | b | 45.31 | a | 39.41 | b | 54.11 | ||
1993 | 36.95 | 38.84 | 49.21 | 50.38 | b | 58.30 | c | 58.58 | j | 61.61 | c | 65.34 | 61.91 | a | 55.28 | d | 39.83 | c | 39.32 | c | 50.63 | a | ||||
1994 | 43.10 | f | 43.32 | c | 48.79 | 52.98 | b | 58.64 | c | 59.69 | c | 68.45 | c | 65.73 | a | 64.11 | c | 51.16 | f | 41.12 | d | 42.48 | d | 54.53 | b | |
1995 | 44.46 | e | 46.90 | c | 46.85 | e | 49.62 | a | 57.24 | 61.21 | b | 69.29 | c | 63.47 | b | 64.08 | 50.93 | j | 50.34 | a | 43.25 | a | 54.25 | a | ||
1996 | 41.47 | 44.33 | 47.62 | a | 53.25 | 53.82 | 61.30 | g | 68.42 | g | 67.33 | a | 59.00 | 52.79 | 47.28 | a | 43.98 | a | 51.09 | b | ||||||
1997 | 41.06 | 42.80 | 47.76 | 49.92 | 60.85 | 60.22 | 66.15 | d | 67.81 | 62.43 | b | 52.21 | 47.50 | 38.70 | a | 53.12 | ||||||||||
1998 | 45.65 | 45.76 | a | 46.48 | a | 51.13 | 53.53 | 60.50 | 70.04 | f | 67.79 | c | 63.28 | 52.87 | 47.64 | a | 39.37 | 52.18 | a | |||||||
1999 | 42.60 | 43.39 | 44.47 | 49.13 | 52.85 | 59.09 | g | 64.79 | c | 66.66 | 61.77 | 53.52 | 50.07 | 41.66 | 51.90 | a | ||||||||||
2000 | 40.52 | 44.66 | 44.87 | 52.48 | 56.39 | 62.52 | a | 64.96 | f | 64.52 | c | 61.12 | a | 51.88 | e | 42.30 | c | 41.54 | d | 51.16 | a | |||||
2001 | 40.76 | d | 40.41 | 46.06 | d | 47.31 | a | 57.90 | b | 58.08 | 65.75 | a | 68.03 | a | 62.11 | g | 53.13 | a | 48.62 | b | 42.18 | a | 51.66 | a | ||
2002 | 41.22 | d | 43.84 | c | 44.96 | e | 49.33 | c | 53.83 | h | 60.48 | c | 67.03 | l | 66.04 | c | 62.66 | b | 51.52 | a | 49.18 | b | 44.82 | a | 51.40 | b |
2003 | 47.09 | d | 44.58 | b | 50.13 | d | 49.30 | b | 55.59 | c | 63.71 | b | 70.31 | d | 68.96 | c | 63.69 | c | 57.62 | c | 44.36 | b | 44.02 | a | 54.95 | |
2004 | 43.47 | a | 45.87 | b | 50.74 | 51.92 | d | 54.13 | a | 61.78 | e | 69.87 | a | 67.95 | c | 61.17 | c | 53.84 | b | 44.86 | b | 42.77 | a | 54.03 | ||
2005 | 41.91 | d | 42.50 | h | 50.11 | h | 50.44 | e | 57.54 | c | ----- | z | 68.05 | 67.90 | a | 59.95 | 55.38 | b | 44.00 | 38.00 | i | 55.65 | d | |||
2006 | 44.52 | e | 41.36 | c | 44.05 | b | 49.90 | 56.37 | d | 62.83 | a | 67.14 | c | 64.69 | g | 61.18 | e | 51.06 | d | 44.88 | e | 41.00 | b | 51.30 | a | |
2007 | 37.07 | b | 42.43 | 48.60 | 49.20 | 54.34 | 59.08 | 67.31 | 64.74 | 58.60 | 50.52 | 42.75 | 39.69 | 51.19 | ||||||||||||
2008 | 36.55 | 41.47 | 42.10 | 45.18 | 55.23 | 57.18 | 65.16 | 65.37 | 60.45 | 51.89 | 47.32 | 37.11 | 50.42 | |||||||||||||
2009 | 38.66 | 41.59 | 41.98 | 46.97 | 55.55 | 60.73 | 67.76 | 65.34 | 61.30 | 50.61 | 44.07 | 34.56 | 50.76 | |||||||||||||
2010 | 44.98 | 44.71 | 44.71 | 46.82 | 50.73 | a | 57.08 | 63.97 | 64.37 | 60.42 | 52.81 | 44.50 | 42.24 | 51.45 | ||||||||||||
2011 | 40.94 | 39.46 | 44.47 | 45.17 | 49.46 | g | 57.63 | d | 62.90 | 65.89 | 65.18 | 54.65 | 44.42 | 36.65 | a | 50.67 | a | |||||||||
2012 | 40.31 | 40.90 | 41.47 | 49.05 | 52.74 | 56.67 | 62.95 | 65.40 | 60.47 | 52.21 | 46.78 | 40.53 | 50.79 | |||||||||||||
2013 | 36.42 | 40.65 | d | 45.47 | 49.70 | 55.16 | 60.40 | 67.74 | n | 66.29 | g | 61.08 | 49.48 | 44.03 | 33.34 | b | 47.57 | b | ||||||||
2014 | 39.61 | 42.36 | 47.03 | 48.88 | 56.45 | b | 58.23 | 66.74 | 67.79 | 62.93 | 57.44 | 45.60 | 44.42 | 53.12 | ||||||||||||
2015 | 43.21 | 46.71 | 49.76 | 47.73 | 55.65 | 64.53 | 68.50 | 67.44 | 59.95 | 57.18 | 43.23 | 41.97 | 53.82 | |||||||||||||
2016 | 41.79 | 46.52 | 46.77 | 54.00 | 56.23 | 61.39 | c | 63.98 | 66.82 | 59.22 | 53.81 | 50.28 | 36.34 | 53.10 | ||||||||||||
2017 | 36.16 | 42.55 | 46.55 | 48.22 | 55.98 | 60.58 | 65.76 | 68.44 | 62.17 | 51.76 | h | 45.55 | 37.77 | 51.79 | a | |||||||||||
2018 | 43.27 | 40.38 | 43.37 | 49.70 | 57.26 | 60.58 | 67.71 | 66.48 | 58.10 | j | 53.47 | 45.33 | 41.34 | 51.72 | a | |||||||||||
2019 | 41.19 | 36.73 | 42.82 | 50.85 | 56.94 | 61.23 | 64.95 | 66.90 | 60.38 | 48.52 | 43.17 | 41.18 | 51.24 | |||||||||||||
2020 | 44.35 | 40.97 | 43.40 | 50.95 | 56.08 | 60.50 | 65.76 | 65.84 | 62.36 | h | 53.87 | a | 43.65 | 41.40 | 51.52 | a | ||||||||||
2021 | 42.90 | 41.34 | 43.89 | 49.88 | 55.23 | 64.90 | 67.95 | 66.77 | 61.20 | 51.34 | 47.27 | 40.40 | 52.76 | |||||||||||||
2022 | 41.55 | 41.75 | 46.98 | 45.55 | 52.56 | 60.13 | 67.71 | 68.58 | 62.37 | 56.55 | 40.40 | 39.52 | 51.97 | |||||||||||||
2023 | 40.23 | 38.79 | 40.82 | 47.40 | 58.11 | 61.38 | d | 67.42 | 68.79 | 60.74 | a | 54.19 | 44.87 | 44.37 | 52.26 | |||||||||||
2024 | 47.25 | k | 44.67 | 46.66 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.67 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 40.21 | 42.56 | 45.03 | 48.87 | 54.53 | 59.82 | 65.18 | 65.37 | 60.73 | 52.84 | 44.96 | 40.40 | 51.54 | |||||||||||||
S.D. | 3.09 | 2.93 | 2.52 | 2.39 | 2.34 | 2.26 | 2.26 | 2.24 | 2.06 | 1.96 | 2.68 | 2.93 | 1.19 | |||||||||||||
SKEW | -0.54 | -0.35 | 0.22 | -0.13 | 0.38 | -0.04 | 0.06 | -0.14 | -0.08 | 0.34 | -0.39 | -0.46 | 0.83 | |||||||||||||
MAX | 47.09 | 48.73 | 50.74 | 54.00 | 60.85 | 64.90 | 70.31 | 69.39 | 65.18 | 57.62 | 50.52 | 47.24 | 54.95 | |||||||||||||
MIN | 31.03 | 32.60 | 39.89 | 43.10 | 50.35 | 55.20 | 60.24 | 59.52 | 56.88 | 48.52 | 36.34 | 32.04 | 49.37 | |||||||||||||
YRS | 72 | 72 | 72 | 73 | 72 | 70 | 69 | 72 | 71 | 71 | 73 | 72 | 54 |