YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.52 | k | ----- | z |
1941 | 47.21 | 49.27 | 51.73 | 51.12 | 53.92 | a | 58.28 | 62.11 | 60.08 | 57.67 | 54.48 | 49.68 | 44.71 | 53.35 | ||||||||||||
1942 | 42.84 | 44.75 | 45.23 | a | 49.97 | 53.26 | 57.76 | a | 62.79 | 62.23 | 57.59 | a | 55.69 | 47.25 | 44.88 | b | 52.02 | |||||||||
1943 | 39.50 | a | 47.70 | 45.69 | 50.35 | 51.70 | a | 55.63 | 59.26 | 59.02 | 57.92 | x | 54.39 | 50.38 | 44.29 | 50.72 | a | |||||||||
1944 | 44.05 | 44.33 | 45.56 | 49.13 | c | 53.48 | a | 56.32 | 60.71 | 62.13 | 59.63 | 57.74 | 48.17 | 43.95 | 52.10 | |||||||||||
1945 | 45.90 | 45.80 | 44.79 | 47.57 | 54.06 | 57.02 | 59.67 | a | 58.19 | 57.32 | b | 53.48 | a | 46.18 | 44.53 | 51.21 | ||||||||||
1946 | 43.95 | 44.20 | 45.71 | 47.22 | 54.31 | 55.95 | 60.45 | b | 59.19 | 57.88 | 50.24 | 45.15 | 45.19 | 50.79 | ||||||||||||
1947 | 40.75 | a | 47.94 | a | 49.55 | b | 52.38 | a | 54.88 | a | 57.20 | 60.38 | a | 60.02 | 59.19 | a | 54.15 | 47.97 | 45.27 | a | 52.47 | |||||
1948 | 43.26 | 41.48 | 43.85 | 45.37 | 52.23 | 59.00 | a | 59.66 | b | 59.82 | 58.58 | 51.53 | 44.35 | 39.26 | 49.87 | |||||||||||
1949 | 34.00 | 41.20 | 46.56 | 50.00 | b | 54.85 | d | ----- | z | ----- | z | 60.71 | s | 58.84 | a | 49.11 | 52.83 | 42.89 | 47.81 | c | ||||||
1950 | 34.89 | 42.89 | 44.11 | 47.68 | 49.55 | 56.87 | 58.65 | 60.10 | 57.13 | 51.92 | 47.32 | 49.23 | 50.03 | |||||||||||||
1951 | 41.15 | 44.55 | 43.15 | 49.30 | 53.08 | 56.30 | 59.97 | a | 59.40 | 58.65 | 54.53 | 48.83 | 40.76 | 50.81 | ||||||||||||
1952 | 40.03 | 42.55 | 44.44 | 47.80 | 52.08 | 55.13 | 59.74 | 60.48 | 58.58 | 56.84 | 46.25 | 44.24 | 50.68 | |||||||||||||
1953 | 48.29 | 45.32 | 45.66 | 48.65 | 53.26 | 56.18 | 59.90 | 61.69 | 60.22 | 56.00 | 50.75 | 46.22 | b | 52.68 | ||||||||||||
1954 | 41.78 | a | 46.32 | 44.19 | 47.78 | 53.18 | a | 55.12 | 57.92 | 60.33 | a | 59.20 | 55.13 | 52.30 | 44.85 | 51.51 | ||||||||||
1955 | 42.61 | 42.46 | 42.35 | 44.55 | 50.40 | b | 56.22 | a | 58.32 | a | 57.73 | 58.35 | 53.81 | 47.00 | b | 43.47 | 49.77 | |||||||||
1956 | 42.77 | 39.36 | 43.85 | 49.08 | 54.84 | 55.90 | 61.06 | 61.19 | 58.87 | 52.11 | 47.73 | 44.94 | 50.98 | |||||||||||||
1957 | 37.50 | 45.41 | 47.13 | 49.68 | 55.00 | 58.98 | 59.85 | 59.98 | 63.48 | 54.85 | 47.88 | 46.26 | 52.17 | |||||||||||||
1958 | 47.26 | 50.23 | 45.60 | 50.90 | 56.08 | 61.47 | 64.15 | 61.60 | 59.67 | 55.65 | 47.02 | 48.53 | 54.01 | |||||||||||||
1959 | 44.50 | 44.09 | 47.27 | 50.47 | 54.31 | 58.42 | 60.53 | a | 59.02 | 58.23 | 55.65 | 48.90 | 44.74 | 52.18 | ||||||||||||
1960 | 41.65 | 45.43 | 46.57 | a | 50.28 | 52.45 | 57.07 | 58.69 | 60.23 | 59.17 | 55.08 | 48.00 | 45.00 | a | 51.63 | |||||||||||
1961 | 48.76 | 47.68 | 47.06 | 48.03 | 53.44 | 58.45 | 61.41 | b | 61.60 | 56.91 | c | 53.53 | 45.85 | 43.81 | 52.21 | |||||||||||
1962 | 41.90 | 45.73 | 44.61 | 49.38 | 50.27 | 55.27 | 59.24 | 61.11 | 59.38 | 55.52 | 50.05 | 46.65 | 51.59 | |||||||||||||
1963 | 39.21 | 52.34 | 45.35 | a | 48.02 | 52.55 | 55.47 | 59.05 | 60.79 | 61.85 | 56.21 | 49.12 | 47.08 | 52.25 | ||||||||||||
1964 | 44.82 | 44.17 | 44.50 | 46.82 | 50.48 | 55.75 | 59.52 | 59.65 | 58.40 | 55.48 | 45.38 | 41.52 | 50.54 | |||||||||||||
1965 | 43.48 | 45.55 | 48.06 | 49.28 | 50.37 | 54.75 | 59.76 | 61.85 | 58.43 | 57.65 | 50.95 | 42.41 | c | 51.88 | ||||||||||||
1966 | 44.13 | 44.71 | 45.53 | 49.88 | 51.45 | 56.73 | b | 59.37 | 60.37 | 61.48 | 54.47 | 49.43 | 46.92 | 52.04 | ||||||||||||
1967 | 45.47 | 44.96 | 43.81 | 45.03 | 52.90 | 58.98 | 59.89 | 61.40 | 61.77 | 54.69 | 49.40 | 42.29 | 51.72 | |||||||||||||
1968 | 42.69 | 51.43 | 48.66 | 46.77 | 53.19 | 57.33 | 60.15 | 60.95 | 60.08 | 52.95 | 49.28 | 41.84 | 52.11 | |||||||||||||
1969 | 37.92 | 43.20 | 47.08 | 48.33 | 56.48 | 60.18 | 58.65 | 58.92 | 58.97 | 53.50 | 49.55 | 46.42 | 51.60 | |||||||||||||
1970 | 44.10 | 49.93 | 47.32 | 45.90 | 52.35 | 56.72 | 58.82 | 59.87 | 57.08 | 53.03 | 48.82 | 41.95 | 51.32 | |||||||||||||
1971 | 42.98 | a | 44.07 | 43.79 | 47.37 | 52.23 | a | 54.38 | 58.11 | 62.24 | 58.32 | 52.00 | 47.32 | 41.50 | 50.36 | |||||||||||
1972 | 40.19 | 44.24 | 48.42 | a | 45.77 | 53.50 | a | 57.18 | 61.37 | a | 61.06 | 57.12 | a | 53.18 | a | 49.10 | 40.57 | a | 50.98 | |||||||
1973 | 41.71 | 47.93 | 45.71 | 49.58 | 53.40 | 56.30 | 59.34 | 57.98 | 60.25 | 53.29 | 45.10 | 47.14 | b | 51.48 | ||||||||||||
1974 | 41.10 | 43.61 | 46.73 | 49.10 | 50.95 | 56.50 | a | 59.35 | 60.48 | 61.40 | 54.47 | 49.45 | 46.45 | 51.63 | ||||||||||||
1975 | 44.69 | 44.34 | 44.58 | 45.40 | 52.81 | 55.97 | 60.21 | 59.11 | 60.45 | 52.50 | 46.55 | 45.65 | 51.02 | |||||||||||||
1976 | 45.11 | 43.93 | 43.76 | 47.95 | 52.82 | 54.33 | 59.98 | 60.24 | 60.82 | 55.44 | 51.97 | 45.73 | 51.84 | |||||||||||||
1977 | 44.82 | 48.95 | 44.98 | 49.40 | 50.52 | 57.62 | 58.94 | 62.37 | 58.28 | 54.44 | 46.33 | 46.25 | a | 51.91 | ||||||||||||
1978 | 46.11 | 48.29 | 49.82 | 48.88 | 53.16 | 59.67 | 61.39 | 61.69 | 59.68 | 56.87 | 44.42 | 39.56 | 52.46 | |||||||||||||
1979 | 37.47 | 43.62 | 49.50 | 49.95 | 54.30 | a | 56.08 | 61.84 | 61.21 | 62.68 | 56.37 | 48.05 | 47.95 | 52.42 | ||||||||||||
1980 | 40.66 | 47.71 | 45.89 | 50.70 | 52.72 | b | 55.20 | 60.27 | 59.10 | 59.88 | 55.90 | 50.08 | 47.95 | 52.17 | ||||||||||||
1981 | 49.19 | 47.61 | 48.52 | 50.10 | 53.98 | 57.40 | 60.73 | 60.79 | b | 61.88 | j | 53.95 | 50.08 | 46.06 | 52.58 | a | ||||||||||
1982 | 42.32 | 45.50 | 46.44 | 47.98 | 53.05 | 57.13 | 59.79 | 61.16 | 60.77 | 56.27 | 46.98 | 44.74 | 51.85 | |||||||||||||
1983 | 48.11 | 49.23 | 50.67 | a | 51.63 | 56.11 | 58.83 | 61.92 | 63.08 | 59.87 | 55.00 | 49.95 | 39.52 | c | 53.66 | |||||||||||
1984 | 46.77 | 48.66 | 50.84 | 48.72 | 53.30 | a | 56.22 | 59.42 | a | 61.31 | 60.00 | 51.58 | 47.52 | 40.47 | 52.07 | |||||||||||
1985 | 43.53 | 42.61 | 43.61 | 49.43 | 53.06 | 57.29 | a | 61.06 | 60.58 | a | 57.02 | 51.77 | 39.18 | 43.73 | a | 50.24 | ||||||||||
1986 | 48.27 | a | 46.12 | 50.69 | b | 47.68 | 52.89 | 58.03 | a | 58.82 | a | 59.13 | a | 56.76 | a | 53.68 | 48.88 | b | 45.47 | b | 52.20 | |||||
1987 | 44.75 | a | 47.76 | a | 47.68 | c | 50.91 | c | 53.95 | 56.25 | 58.55 | a | ----- | z | 57.62 | 56.44 | 50.28 | 42.97 | a | 51.56 | a | |||||
1988 | 43.89 | 46.80 | a | 46.73 | 48.45 | 52.90 | 55.45 | 58.77 | a | 59.95 | a | 57.38 | 56.75 | c | 49.72 | a | 44.69 | 51.79 | ||||||||
1989 | 42.76 | 39.06 | b | 46.30 | c | 52.45 | 52.97 | 58.18 | b | 58.36 | c | 59.97 | a | 60.52 | 53.23 | 49.10 | a | 44.47 | b | 51.45 | ||||||
1990 | 45.25 | a | 43.27 | 48.81 | 50.72 | a | 52.50 | b | 57.22 | 60.12 | a | 61.88 | a | 60.00 | a | 52.23 | 48.78 | a | 37.35 | 51.51 | ||||||
1991 | 42.97 | a | 50.68 | 44.22 | a | ----- | z | ----- | z | 54.68 | ----- | z | ----- | z | 63.54 | c | 53.86 | b | 48.77 | 45.52 | 50.53 | d | ||||
1992 | 46.35 | a | 51.45 | ----- | z | 52.20 | 54.83 | a | 57.58 | ----- | z | 61.06 | 57.62 | 54.42 | 47.37 | 41.65 | 52.45 | b | ||||||||
1993 | 39.95 | b | 43.41 | 48.40 | 50.33 | 55.62 | a | 57.27 | 59.38 | a | 61.02 | 56.95 | 54.71 | 43.57 | a | 44.97 | b | 51.30 | ||||||||
1994 | 46.78 | b | 43.77 | b | 48.58 | 49.20 | 52.92 | a | 55.37 | 57.94 | 60.73 | 60.21 | a | 51.23 | a | 43.02 | a | 44.22 | b | 51.16 | ||||||
1995 | 47.06 | 48.59 | 47.63 | 48.38 | 52.55 | 57.10 | a | 60.60 | 59.53 | 61.03 | 53.40 | b | 51.97 | a | 46.18 | 52.83 | ||||||||||
1996 | 44.42 | 45.48 | a | 47.60 | 50.21 | a | 51.10 | 55.73 | 59.29 | 58.94 | 56.78 | 52.07 | b | 47.32 | 45.07 | b | 51.17 | |||||||||
1997 | 44.69 | 45.70 | a | 46.15 | 49.21 | a | 57.11 | 58.02 | b | 60.18 | 62.16 | 61.45 | 53.07 | a | 51.27 | 44.03 | 52.75 | |||||||||
1998 | 47.35 | 47.27 | 47.44 | 48.05 | 52.97 | 56.78 | 61.03 | 60.13 | 58.28 | 53.71 | 49.22 | 42.08 | 52.03 | |||||||||||||
1999 | 44.88 | a | 44.75 | 44.71 | 47.60 | 49.42 | a | 55.64 | a | 58.60 | e | 61.29 | e | 56.88 | d | 53.63 | e | 51.04 | f | 47.59 | d | 51.36 | a | |||
2000 | 43.66 | c | 46.66 | d | 45.31 | b | 50.48 | i | 52.68 | c | 57.14 | e | 60.13 | d | 59.93 | c | 60.19 | f | 54.27 | g | 45.41 | c | 45.79 | e | 50.74 | c |
2001 | 46.28 | f | 45.36 | f | 47.00 | f | 45.68 | e | 52.72 | h | 54.54 | e | 58.35 | d | 60.26 | d | 57.27 | d | 52.54 | f | 50.64 | h | 45.40 | f | 55.22 | g |
2002 | 44.58 | g | 46.07 | g | 44.38 | g | 49.08 | d | 50.88 | f | 57.42 | f | 60.72 | f | 59.65 | g | 58.17 | d | 54.29 | g | 51.25 | b | 47.08 | e | 51.39 | h |
2003 | 50.80 | f | 46.50 | d | 49.46 | d | 48.58 | e | 52.20 | h | 57.88 | f | 59.77 | c | 61.07 | d | 59.68 | m | 58.10 | g | 46.59 | a | 46.19 | e | 51.17 | e |
2004 | 44.56 | e | 47.77 | c | 48.98 | e | 51.69 | d | 55.28 | d | 58.10 | a | 62.22 | d | 63.44 | d | 59.42 | e | 54.76 | d | 48.07 | i | 46.09 | c | 53.85 | a |
2005 | 45.56 | f | 46.86 | f | 49.69 | g | 49.72 | c | 56.91 | d | 57.00 | d | 60.62 | g | 60.76 | d | 56.02 | e | 54.70 | c | 47.27 | d | 46.32 | f | 54.62 | e |
2006 | 47.42 | e | 44.96 | c | 44.96 | e | 49.52 | f | 53.14 | f | 56.90 | d | 60.67 | e | 58.61 | c | 58.39 | c | 52.04 | g | 48.44 | d | 44.74 | d | 51.68 | c |
2007 | 42.25 | e | 46.84 | c | 47.68 | i | 49.14 | h | 51.54 | f | 55.43 | c | 62.00 | b | 60.78 | f | 57.83 | d | 53.16 | i | 49.35 | g | 44.70 | i | 52.87 | g |
2008 | 43.06 | f | 46.35 | f | 45.80 | f | 47.13 | g | 52.93 | h | 53.94 | f | 58.65 | d | 60.04 | d | 58.26 | e | 54.76 | d | 52.40 | e | 43.30 | f | 56.82 | g |
2009 | 46.35 | e | 46.64 | f | 45.46 | d | 48.41 | c | 52.98 | i | 57.69 | f | 59.95 | a | 60.74 | 60.62 | 54.47 | 49.85 | 43.50 | 52.15 | c | |||||
2010 | 49.76 | 49.73 | 48.63 | 49.18 | 51.32 | 55.78 | 59.31 | 59.15 | 60.63 | 54.81 | 47.90 | 47.13 | 52.78 | |||||||||||||
2011 | 46.85 | 43.68 | 47.55 | 46.40 | 50.87 | 56.92 | 59.24 | 60.18 | 59.68 | 55.21 | 47.20 | 43.98 | 51.48 | |||||||||||||
2012 | 45.66 | 46.38 | 45.40 | 50.47 | 51.84 | 55.67 | 59.98 | 60.19 | 57.50 | 53.95 | 50.83 | 45.40 | 51.94 | |||||||||||||
2013 | 43.55 | 46.52 | 48.02 | 50.00 | 54.66 | 61.85 | 60.61 | 61.74 | 60.63 | 52.40 | 49.82 | 42.42 | 52.69 | |||||||||||||
2014 | 47.69 | 45.64 | 50.23 | 52.08 | 56.87 | 58.23 | 62.68 | 63.10 | 62.88 | 59.84 | 51.08 | 49.92 | 55.02 | |||||||||||||
2015 | 50.97 | 52.57 | 51.85 | 49.90 | 54.65 | 58.74 | a | 62.81 | 62.18 | 59.40 | 58.87 | 47.97 | 46.74 | 54.72 | ||||||||||||
2016 | 47.08 | 50.88 | 50.48 | 53.30 | 55.84 | 58.52 | 62.13 | 60.67 | b | 58.63 | 55.65 | 52.68 | 41.32 | 53.93 | ||||||||||||
2017 | 41.85 | 44.70 | 47.58 | 48.93 | 53.15 | a | 56.98 | a | 60.05 | 62.68 | 61.12 | 53.90 | 49.23 | 45.56 | 52.15 | |||||||||||
2018 | 48.84 | 43.59 | 46.15 | 50.18 | 54.39 | 57.82 | 60.37 | 60.77 | 58.23 | 54.40 | a | 50.18 | 46.63 | 52.63 | ||||||||||||
2019 | 47.26 | 41.29 | 46.94 | 50.90 | a | 55.16 | 58.30 | 61.95 | a | 62.93 | b | 60.00 | 51.05 | 48.10 | 46.34 | 52.52 | ||||||||||
2020 | 47.74 | 44.40 | 44.27 | 49.63 | 54.97 | 57.73 | 59.66 | 61.47 | 61.25 | 54.13 | 48.33 | 47.21 | 52.57 | |||||||||||||
2021 | 46.85 | 45.02 | 45.02 | 49.38 | 53.03 | 58.63 | 61.10 | 60.35 | 58.72 | a | 53.68 | 50.83 | 42.97 | 52.13 | ||||||||||||
2022 | 47.39 | 45.82 | 47.21 | 47.03 | 51.29 | 57.90 | 60.69 | 62.43 | a | 60.33 | 56.03 | 46.38 | 43.87 | 52.20 | ||||||||||||
2023 | 45.74 | 42.89 | 43.66 | 47.85 | 54.48 | b | 56.87 | 61.00 | a | 63.66 | 59.60 | 56.32 | 50.25 | 49.52 | 52.65 | |||||||||||
2024 | 46.10 | 46.90 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.50 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 44.15 | 45.85 | 46.63 | 49.01 | 53.27 | 57.01 | 60.11 | 60.69 | 59.22 | 54.33 | 48.42 | 44.63 | 51.93 | |||||||||||||
S.D. | 3.33 | 2.82 | 2.21 | 1.82 | 1.74 | 1.50 | 1.28 | 1.28 | 1.68 | 1.88 | 2.38 | 2.47 | 1.02 | |||||||||||||
SKEW | -0.65 | 0.25 | 0.42 | -0.22 | 0.04 | 0.67 | 0.65 | 0.08 | 0.46 | 0.06 | -0.82 | -0.48 | 0.50 | |||||||||||||
MAX | 50.97 | 52.57 | 51.85 | 53.30 | 57.11 | 61.85 | 64.15 | 63.66 | 63.54 | 59.84 | 52.83 | 49.92 | 55.02 | |||||||||||||
MIN | 34.00 | 39.06 | 42.35 | 44.55 | 49.42 | 54.33 | 57.92 | 57.73 | 56.02 | 49.11 | 39.18 | 37.35 | 49.77 | |||||||||||||
YRS | 79 | 79 | 77 | 78 | 75 | 78 | 78 | 78 | 79 | 77 | 79 | 79 | 66 |