YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.93 | 60.35 | 53.18 | 50.71 | q | 59.82 | i | |||
1943 | 48.24 | b | 49.81 | b | 52.76 | 56.68 | 61.77 | 62.98 | 71.60 | 74.48 | 73.25 | 63.62 | a | 53.69 | a | 47.44 | e | 59.69 | ||||||||
1944 | 46.23 | c | 44.46 | a | 48.87 | 51.33 | 58.44 | 59.17 | a | 68.32 | 73.76 | 69.31 | a | 62.02 | 49.95 | 48.45 | 56.69 | |||||||||
1945 | 46.34 | b | 47.85 | e | 46.06 | 53.38 | 57.65 | 63.14 | a | 75.85 | 72.67 | k | 70.20 | 61.68 | 51.75 | 46.85 | 56.43 | a | ||||||||
1946 | 45.55 | 44.46 | 48.60 | 56.15 | 57.53 | 66.03 | 73.43 | a | 74.92 | 71.30 | 56.27 | 48.33 | 49.23 | 57.65 | ||||||||||||
1947 | 43.82 | 49.79 | 50.53 | 54.82 | 60.85 | 63.67 | 72.84 | 71.52 | 72.23 | 60.26 | 48.18 | 45.19 | 57.81 | |||||||||||||
1948 | 47.53 | 43.43 | 44.68 | 52.77 | 57.65 | 63.58 | 71.37 | 71.98 | 70.12 | 60.00 | 49.95 | 42.94 | 56.33 | |||||||||||||
1949 | 35.37 | 41.93 | 46.48 | 55.10 | 57.35 | 65.55 | b | 71.29 | 70.37 | 70.80 | 57.00 | 55.83 | 43.81 | 55.91 | ||||||||||||
1950 | 40.60 | 48.52 | 49.03 | 55.00 | 55.86 | b | 62.33 | 72.82 | 71.39 | 65.35 | 61.77 | 54.18 | 50.18 | 57.25 | ||||||||||||
1951 | 42.73 | 44.77 | 48.18 | 52.38 | 56.79 | c | 61.50 | 71.85 | 71.04 | c | 74.28 | 60.44 | 51.15 | 43.32 | 56.54 | |||||||||||
1952 | 41.81 | 45.91 | 43.90 | 53.37 | 60.90 | a | 60.48 | 72.77 | 75.21 | 71.70 | 64.39 | 47.42 | 43.95 | 56.82 | ||||||||||||
1953 | 49.21 | 44.80 | 46.85 | 50.10 | 51.66 | 61.27 | 74.76 | 70.81 | 67.77 | 58.18 | 52.07 | 45.18 | a | 56.05 | ||||||||||||
1954 | 42.58 | a | 49.50 | 45.61 | 55.03 | 59.62 | a | 64.57 | 75.87 | 68.26 | 68.38 | 59.52 | 53.55 | 44.52 | 57.25 | |||||||||||
1955 | 40.39 | ----- | z | 54.25 | w | 50.57 | 55.32 | 61.68 | 69.19 | 75.68 | 67.85 | 59.52 | 49.35 | 45.85 | 57.54 | b | ||||||||||
1956 | 45.19 | 40.52 | 48.05 | 49.83 | 57.93 | c | 66.08 | 71.00 | a | 67.11 | 70.58 | 57.02 | 51.63 | 47.43 | a | 56.03 | ||||||||||
1957 | 43.40 | a | 51.25 | 49.97 | 52.62 | 54.94 | 67.32 | 73.50 | 72.05 | 66.15 | 56.02 | 47.78 | 48.23 | 56.93 | ||||||||||||
1958 | 45.03 | 48.59 | 44.66 | 52.57 | 60.94 | 64.17 | 69.44 | 76.18 | 70.08 | 64.13 | 50.90 | 50.66 | 58.11 | |||||||||||||
1959 | 47.87 | 44.28 | a | 52.92 | 58.53 | 56.90 | 67.78 | 76.58 | 72.37 | 66.16 | a | 60.85 | 53.05 | 47.75 | a | 58.75 | ||||||||||
1960 | 40.58 | a | 44.79 | 51.95 | 53.98 | 57.55 | 67.68 | 73.82 | 71.56 | 70.20 | 57.63 | 48.95 | a | 43.50 | 56.85 | |||||||||||
1961 | 45.69 | 47.20 | 47.35 | 54.13 | 55.53 | 68.43 | 74.66 | 74.44 | 64.00 | 57.98 | 48.21 | a | 44.50 | 56.84 | ||||||||||||
1962 | 44.08 | 45.18 | 44.60 | 57.03 | 54.74 | 63.03 | 68.84 | 73.19 | 68.20 | 58.92 | a | 50.48 | b | 45.95 | 56.19 | |||||||||||
1963 | 41.89 | 51.78 | a | 46.27 | 48.38 | 57.18 | a | 61.28 | 70.42 | 71.97 | a | 69.76 | a | 61.31 | 50.53 | 45.55 | 56.36 | |||||||||
1964 | 42.06 | 43.62 | 45.68 | 50.05 | 55.44 | 63.23 | 73.15 | a | 72.65 | a | 65.43 | 63.85 | 47.08 | 45.39 | 55.64 | |||||||||||
1965 | 45.06 | 45.27 | 46.88 | a | 51.88 | 57.02 | 58.65 | 69.84 | 72.98 | a | 61.23 | 61.34 | c | 51.95 | a | 45.31 | 55.62 | |||||||||
1966 | 42.95 | 43.64 | 50.95 | 55.72 | 60.03 | a | 65.07 | c | 71.43 | b | 74.87 | a | 67.33 | 58.85 | 51.98 | 47.00 | 57.49 | |||||||||
1967 | 45.60 | 47.29 | 50.00 | 45.08 | 57.84 | 61.55 | 75.68 | 78.21 | 68.88 | 62.18 | a | 55.80 | 42.00 | 57.51 | ||||||||||||
1968 | 44.32 | 51.12 | a | 49.77 | 51.38 | 58.53 | 64.60 | 72.74 | 69.02 | 67.03 | 58.81 | 50.90 | 41.29 | 56.63 | ||||||||||||
1969 | 48.29 | 43.36 | 47.02 | 52.88 | 59.94 | 61.10 | 72.66 | 76.74 | 72.33 | 55.85 | 52.47 | 45.27 | a | 57.33 | ||||||||||||
1970 | 45.03 | 47.89 | 48.68 | 48.23 | 59.37 | 67.23 | 77.17 | a | 77.58 | 67.37 | 58.61 | 52.55 | 43.77 | 57.79 | ||||||||||||
1971 | 45.81 | 47.34 | 51.98 | 54.59 | b | 55.76 | 62.67 | 72.89 | 76.19 | 68.90 | 55.27 | 48.02 | 40.42 | 56.65 | ||||||||||||
1972 | 43.42 | 47.88 | 55.76 | 53.37 | 59.30 | a | 67.93 | 75.19 | 72.28 | a | 65.52 | 56.11 | 47.91 | a | 42.73 | 57.28 | ||||||||||
1973 | 41.47 | 46.25 | 44.16 | 52.18 | 59.24 | 67.27 | 70.44 | 72.75 | c | 62.32 | b | 57.22 | a | 48.48 | 44.87 | 55.55 | ||||||||||
1974 | 43.45 | a | 45.56 | a | 49.69 | 52.67 | a | 57.71 | 67.68 | b | 72.45 | a | 70.74 | 71.07 | 58.34 | 50.75 | 42.81 | 56.91 | ||||||||
1975 | 44.94 | 44.11 | a | 46.48 | b | 46.62 | 57.95 | a | 65.21 | a | 74.47 | a | 71.13 | 69.31 | a | ----- | z | 49.70 | 46.65 | 56.05 | a | |||||
1976 | 45.71 | 47.78 | 48.37 | 51.27 | 61.18 | c | ----- | z | 71.42 | 66.58 | 66.28 | 58.24 | 51.68 | 43.74 | 55.66 | a | ||||||||||
1977 | 44.52 | 48.16 | 44.10 | 53.60 | 52.27 | a | 66.37 | 72.48 | d | 72.87 | ----- | z | ----- | z | 51.50 | 49.52 | 55.54 | b | ||||||||
1978 | ----- | z | 46.18 | 50.76 | 51.35 | ----- | z | 67.68 | ----- | z | 72.15 | ----- | z | 64.10 | 48.37 | 42.03 | 55.33 | d | ||||||||
1979 | 41.45 | 44.68 | 48.05 | c | 54.12 | 58.87 | a | ----- | z | 72.31 | 69.63 | 72.35 | 59.26 | 47.28 | a | ----- | z | 56.80 | b | |||||||
1980 | 48.27 | 50.79 | 48.82 | 55.07 | a | 55.07 | a | 63.33 | 75.68 | 77.05 | b | 66.45 | t | 61.12 | j | 51.80 | b | 49.26 | 57.51 | b | ||||||
1981 | 47.87 | 49.23 | 48.27 | 55.13 | 59.21 | 71.90 | 72.85 | 74.81 | 68.23 | ----- | z | 51.38 | 48.29 | 58.84 | a | |||||||||||
1982 | 43.84 | i | 48.88 | d | 47.92 | a | 52.42 | 57.43 | a | 60.30 | 69.98 | 72.93 | a | 66.73 | 56.65 | a | 47.33 | a | 42.87 | 56.68 | a | |||||
1983 | 47.79 | q | 49.14 | j | 47.73 | 47.60 | 57.56 | 61.81 | a | 69.34 | 73.55 | 70.77 | 60.52 | 50.13 | 46.56 | 58.56 | b | |||||||||
1984 | 46.28 | a | 46.41 | 50.85 | a | 51.75 | 63.42 | 65.75 | 75.98 | 74.11 | 71.43 | ----- | z | 46.92 | 41.90 | b | 57.71 | a | ||||||||
1985 | 42.63 | 44.54 | 46.32 | 55.03 | 57.60 | 66.17 | 73.37 | 69.40 | 61.72 | 57.19 | 47.65 | 45.50 | a | 55.59 | ||||||||||||
1986 | 49.50 | 47.52 | 51.91 | b | 52.28 | 57.47 | 66.42 | 68.44 | 73.52 | 59.47 | 55.03 | 50.10 | 44.31 | 56.33 | ||||||||||||
1987 | 41.76 | 43.82 | 46.02 | a | 55.95 | a | 58.74 | 65.92 | 65.32 | 69.05 | a | 64.90 | a | 60.39 | 48.19 | a | 39.58 | 54.97 | ||||||||
1988 | 43.45 | a | 48.77 | c | 50.97 | 53.50 | 58.08 | 64.05 | 73.20 | a | 71.89 | 66.64 | a | 63.35 | 50.90 | 43.55 | 57.36 | |||||||||
1989 | 42.05 | 45.54 | 52.42 | a | 57.63 | 58.56 | 66.28 | 73.85 | 68.92 | 67.08 | 58.40 | 52.10 | a | 46.33 | a | 57.43 | ||||||||||
1990 | 45.24 | 43.98 | a | 51.27 | 55.72 | 57.55 | 68.23 | 73.84 | 71.37 | 69.05 | 61.18 | a | 51.32 | 42.29 | 57.59 | |||||||||||
1991 | 45.95 | 51.20 | 45.27 | a | 53.07 | a | 56.84 | 62.53 | 71.68 | 72.00 | 71.17 | 64.21 | 53.58 | 46.14 | b | 57.80 | ||||||||||
1992 | 45.79 | 49.74 | 50.15 | 58.78 | 63.90 | 66.17 | 72.02 | 75.65 | 69.36 | a | 61.29 | 50.07 | ----- | z | 60.26 | a | ||||||||||
1993 | 45.81 | 46.98 | b | 53.56 | 56.82 | 62.47 | 65.63 | 66.24 | 70.68 | 67.65 | 60.55 | 50.95 | 45.48 | 57.74 | ||||||||||||
1994 | 47.92 | 45.61 | 52.40 | 54.35 | 58.24 | 68.88 | 72.06 | 76.03 | 68.48 | 56.87 | 44.58 | 44.79 | 57.52 | |||||||||||||
1995 | 45.58 | a | 53.54 | 51.24 | 51.90 | 54.98 | 63.70 | 71.68 | 76.00 | 71.48 | 62.02 | a | 56.28 | 48.23 | 58.89 | |||||||||||
1996 | 47.18 | 50.47 | 51.06 | 56.75 | 61.27 | 66.52 | 77.15 | 76.23 | 68.97 | 58.28 | a | 52.18 | 46.90 | a | 59.41 | |||||||||||
1997 | 46.60 | 46.96 | 53.63 | 54.45 | ----- | z | 64.25 | 69.50 | 75.32 | 71.42 | 57.00 | a | 51.13 | 42.72 | a | 57.54 | a | |||||||||
1998 | 45.48 | 43.54 | 48.13 | 49.45 | 52.66 | ----- | z | 71.84 | 74.84 | 65.45 | 54.56 | 48.18 | 41.56 | 54.15 | a | |||||||||||
1999 | 43.89 | 44.22 | a | 45.67 | a | 45.87 | 54.74 | 61.62 | 69.42 | 70.50 | 67.92 | 61.28 | a | 53.23 | 45.55 | 55.33 | ||||||||||
2000 | 48.32 | a | 47.69 | 49.71 | 55.80 | 62.69 | 68.53 | 71.13 | 75.27 | 67.52 | 57.42 | 46.58 | 47.98 | 58.22 | ||||||||||||
2001 | 42.40 | 44.00 | 51.50 | a | 51.22 | 64.44 | 68.90 | 70.82 | 74.95 | 69.17 | 61.71 | 51.43 | 41.90 | 57.70 | ||||||||||||
2002 | 43.42 | a | 46.32 | 46.45 | 53.38 | 58.27 | 66.30 | 73.65 | 69.95 | 68.35 | 54.82 | 51.00 | 41.37 | 56.11 | ||||||||||||
2003 | 48.18 | 44.61 | 48.24 | 47.12 | ----- | z | 63.27 | 72.92 | 73.73 | 69.52 | 62.52 | 46.21 | a | 41.23 | 56.14 | a | ||||||||||
2004 | 41.44 | 40.81 | 52.84 | 52.20 | 57.55 | 62.78 | 69.27 | 68.79 | 64.34 | a | 53.19 | 43.22 | 43.55 | 54.17 | ||||||||||||
2005 | 44.43 | a | 45.24 | a | 48.31 | 49.95 | 57.66 | 60.80 | 71.21 | 70.40 | 60.28 | 59.14 | c | 52.96 | b | 46.95 | b | 55.61 | ||||||||
2006 | 45.39 | d | 47.92 | c | 44.93 | c | 51.62 | d | 62.59 | c | 70.62 | 79.53 | b | 72.06 | 69.19 | a | 58.16 | c | 54.19 | a | 44.82 | a | 58.42 | |||
2007 | 41.92 | 47.17 | a | 53.25 | e | 55.44 | f | 62.13 | 66.92 | 76.71 | b | 76.67 | b | 67.94 | d | 59.50 | d | 53.98 | a | 42.00 | a | 58.93 | a | |||
2008 | 43.48 | a | 45.41 | a | 49.93 | a | 53.09 | a | 56.85 | 67.37 | 74.63 | 75.11 | 70.28 | a | 61.13 | a | 54.73 | 44.42 | a | 58.04 | ||||||
2009 | 47.40 | 43.54 | 46.79 | 49.77 | 61.39 | 61.17 | 75.48 | 72.68 | 68.55 | 56.16 | 51.53 | 43.38 | a | 56.49 | ||||||||||||
2010 | 45.39 | 45.72 | c | 48.06 | 48.68 | 53.66 | 62.30 | 70.55 | 69.37 | 65.18 | 57.55 | 45.50 | 45.82 | 54.82 | ||||||||||||
2011 | 44.84 | 41.20 | 48.07 | a | 52.47 | a | 53.23 | 61.68 | b | 69.71 | 71.52 | 67.78 | a | 58.39 | 48.55 | 41.97 | 54.95 | |||||||||
2012 | 47.08 | 45.04 | a | 48.17 | g | 54.18 | 59.42 | 64.35 | 71.02 | 77.23 | a | 71.63 | 59.16 | 52.29 | a | 44.37 | 58.71 | a | ||||||||
2013 | 42.32 | 43.46 | 51.84 | 54.55 | 60.39 | 66.08 | 74.15 | 72.24 | 69.02 | a | 54.98 | 51.10 | 45.78 | a | 57.16 | |||||||||||
2014 | 49.42 | 49.84 | 51.94 | 54.80 | 60.69 | 65.20 | 73.39 | 72.63 | 71.45 | 63.03 | 53.47 | 47.95 | 59.48 | |||||||||||||
2015 | 47.42 | 52.29 | 54.31 | b | 55.22 | 57.77 | 70.78 | 71.18 | a | 74.52 | a | 71.25 | 63.63 | a | 48.78 | 43.40 | 59.21 | |||||||||
2016 | 45.29 | 51.17 | 52.11 | 55.12 | 58.00 | 70.74 | a | 74.29 | 73.74 | 65.64 | a | 61.02 | 53.58 | 46.87 | 58.96 | |||||||||||
2017 | 44.58 | 48.38 | 54.32 | a | 56.45 | 59.83 | b | 69.27 | 76.18 | c | 73.89 | c | 67.35 | 61.89 | 55.33 | 49.47 | 59.74 | |||||||||
2018 | 50.45 | 46.39 | 49.24 | 55.28 | 59.26 | 67.13 | 77.95 | 75.42 | 70.21 | a | 59.84 | 52.18 | 46.04 | c | 59.12 | |||||||||||
2019 | 46.10 | 42.37 | a | 48.82 | a | 56.12 | 55.16 | b | 66.02 | a | 71.75 | c | 73.24 | b | 67.91 | a | 57.45 | b | 50.89 | b | 45.31 | 56.76 | ||||
2020 | 46.71 | b | 47.66 | a | 47.50 | a | 54.62 | 63.20 | a | 65.08 | d | 70.98 | b | 76.19 | 71.40 | 63.13 | a | 51.52 | a | 45.40 | 58.62 | |||||
2021 | 45.47 | a | 46.50 | 46.31 | 54.33 | 59.64 | b | 72.29 | d | 77.52 | f | 74.71 | e | 70.57 | 56.42 | 55.38 | d | 45.55 | b | 57.02 | a | |||||
2022 | 47.25 | a | 45.00 | b | 51.21 | b | 54.91 | b | 59.89 | 70.21 | b | 74.88 | a | 77.42 | 72.21 | b | 61.38 | b | 47.22 | 45.00 | a | 58.88 | ||||
2023 | 43.61 | d | 42.19 | a | 45.88 | c | 54.27 | 59.33 | a | 60.45 | a | 75.31 | 72.56 | 66.55 | 60.93 | b | 52.00 | 48.68 | c | 56.81 | ||||||
2024 | 44.87 | 46.28 | 47.82 | 49.34 | n | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.32 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 44.89 | 46.46 | 48.98 | 53.09 | 58.29 | 65.07 | 72.59 | 73.04 | 68.36 | 59.46 | 50.71 | 45.12 | 57.16 | |||||||||||||
S.D. | 2.58 | 2.82 | 2.82 | 2.86 | 2.71 | 3.09 | 2.64 | 2.60 | 2.96 | 2.70 | 2.71 | 2.46 | 1.30 | |||||||||||||
SKEW | -0.50 | 0.25 | 0.18 | -0.64 | -0.05 | 0.17 | -0.01 | -0.21 | -0.76 | -0.06 | -0.25 | 0.10 | 0.06 | |||||||||||||
MAX | 50.45 | 53.54 | 55.76 | 58.78 | 64.44 | 72.29 | 79.53 | 78.21 | 74.28 | 64.39 | 56.28 | 50.66 | 59.74 | |||||||||||||
MIN | 35.37 | 40.52 | 43.90 | 45.08 | 51.66 | 58.65 | 65.32 | 66.58 | 59.47 | 53.19 | 43.22 | 39.58 | 54.17 | |||||||||||||
YRS | 79 | 80 | 80 | 80 | 78 | 78 | 79 | 80 | 79 | 77 | 82 | 79 | 62 |