YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 86.67 | 78.32 | 72.20 | 65.71 | c | 75.73 | h | |||
1943 | 60.77 | 61.11 | 63.19 | 69.07 | 76.61 | 78.43 | 89.35 | 89.81 | 90.37 | 78.29 | 69.77 | 55.94 | 73.56 | |||||||||||||
1944 | 56.19 | 53.83 | 61.13 | 63.37 | 71.26 | 72.40 | 87.23 | 93.35 | 87.00 | 78.90 | 59.50 | 60.74 | 70.41 | |||||||||||||
1945 | 59.03 | 59.11 | 55.65 | 67.83 | 71.26 | 77.10 | 92.10 | 88.05 | k | 85.93 | 75.87 | 67.10 | 58.26 | 69.93 | a | |||||||||||
1946 | 60.32 | 58.79 | 61.42 | 71.10 | 70.61 | 85.57 | 91.10 | a | 93.10 | 89.63 | 70.84 | 60.90 | 62.71 | 73.01 | ||||||||||||
1947 | 58.61 | 64.54 | 62.84 | 68.43 | 77.19 | 80.23 | 93.94 | 87.90 | 90.90 | 76.23 | 62.77 | 57.74 | 73.44 | |||||||||||||
1948 | 65.77 | 57.76 | 57.16 | 66.70 | 73.23 | 80.23 | 91.48 | 92.35 | 90.17 | 76.26 | 66.80 | 57.35 | 72.94 | |||||||||||||
1949 | 45.55 | 54.64 | 59.35 | 70.47 | 72.29 | 83.00 | b | 89.90 | 89.90 | 92.07 | 75.58 | 74.90 | 58.77 | 72.20 | ||||||||||||
1950 | 54.58 | 65.32 | 65.19 | 71.10 | 72.45 | b | 81.97 | 90.74 | 93.26 | 84.97 | 84.10 | 73.63 | 70.74 | 75.67 | ||||||||||||
1951 | 58.48 | 60.18 | 63.29 | 65.17 | 72.93 | c | 80.53 | 92.23 | 91.93 | b | 92.77 | 77.23 | 65.67 | 55.35 | 72.98 | |||||||||||
1952 | 52.65 | 58.31 | 53.58 | 65.47 | 78.37 | a | 77.00 | 91.45 | 93.26 | 90.47 | 86.94 | 61.73 | 56.84 | 72.17 | ||||||||||||
1953 | 64.71 | 63.50 | 62.26 | 64.60 | 67.29 | 79.70 | 93.19 | 90.84 | 90.30 | 77.94 | 69.27 | 63.53 | a | 73.93 | ||||||||||||
1954 | 59.37 | a | 68.18 | 59.94 | 72.60 | 75.65 | 81.40 | 92.58 | 87.00 | 89.93 | 80.48 | 72.23 | 59.77 | 74.93 | ||||||||||||
1955 | 52.26 | ----- | z | 72.00 | w | 67.70 | 69.58 | 80.20 | 87.00 | 92.55 | 89.17 | 81.39 | 66.53 | 60.23 | 74.66 | b | ||||||||||
1956 | 61.32 | 55.52 | 68.06 | 64.73 | 72.26 | 86.23 | 89.87 | a | 89.19 | 92.47 | 74.94 | 71.27 | 65.35 | 74.27 | ||||||||||||
1957 | 53.47 | a | 64.86 | 62.55 | 66.50 | 66.65 | 85.87 | 94.55 | 91.42 | 86.93 | 69.74 | 61.67 | 63.77 | 72.33 | ||||||||||||
1958 | 61.19 | 61.75 | 55.87 | 66.97 | 77.68 | 82.50 | 89.77 | 93.52 | 89.37 | 82.97 | 68.57 | 70.94 | 75.09 | |||||||||||||
1959 | 65.81 | 57.18 | 70.52 | 74.67 | 71.13 | 86.90 | 94.81 | 90.35 | 84.33 | 79.74 | 69.50 | 62.23 | a | 75.60 | ||||||||||||
1960 | 53.97 | 57.90 | 67.77 | 71.50 | 74.16 | 89.07 | 95.55 | 92.71 | 92.00 | 77.55 | 66.24 | a | 61.94 | 75.03 | ||||||||||||
1961 | 64.68 | 64.96 | 62.61 | 72.10 | 72.81 | 88.97 | 94.06 | 92.26 | 83.67 | 77.97 | 64.37 | 58.77 | 74.77 | |||||||||||||
1962 | 59.23 | 56.82 | 57.26 | 74.77 | 69.55 | 81.07 | 89.26 | 95.26 | 90.03 | 79.35 | 72.43 | 65.94 | 74.25 | |||||||||||||
1963 | 58.87 | 69.46 | 61.90 | 63.13 | 73.35 | 77.13 | 92.94 | 90.71 | 88.90 | a | 78.19 | 66.13 | 64.55 | 73.77 | ||||||||||||
1964 | 58.52 | 61.41 | 59.97 | 63.70 | 70.52 | 80.77 | 93.39 | 90.84 | 87.17 | 82.87 | 61.47 | 59.29 | 72.49 | |||||||||||||
1965 | 60.03 | 62.79 | 59.40 | a | 65.93 | 72.65 | 73.57 | 89.81 | 92.74 | 80.50 | 84.65 | 66.57 | 58.35 | 72.25 | ||||||||||||
1966 | 58.45 | 57.14 | 67.94 | 72.77 | 75.87 | 84.00 | 90.97 | 92.87 | 86.40 | 76.90 | 67.23 | 61.10 | 74.30 | |||||||||||||
1967 | 61.55 | 64.89 | 63.19 | 55.97 | 73.19 | 76.87 | 92.71 | 95.55 | 84.27 | 83.00 | 72.80 | 54.81 | 73.23 | |||||||||||||
1968 | 60.71 | 66.21 | 65.77 | 67.23 | 73.87 | 83.10 | 90.48 | 87.58 | 87.47 | 78.35 | 68.13 | 57.68 | 73.88 | |||||||||||||
1969 | 61.10 | 53.79 | 60.90 | 66.97 | 76.35 | 74.37 | 91.06 | 96.77 | 91.67 | 75.23 | 67.47 | 62.97 | 73.22 | |||||||||||||
1970 | 59.65 | 65.07 | 64.23 | 64.37 | 77.71 | 85.93 | 96.48 | 96.16 | 89.27 | 77.42 | 70.67 | 57.00 | 75.33 | |||||||||||||
1971 | 62.74 | 64.21 | 67.29 | 65.72 | a | 69.97 | 83.23 | 94.71 | 94.90 | 89.93 | 74.55 | 66.97 | 52.65 | 73.91 | ||||||||||||
1972 | 62.81 | 66.62 | 76.71 | 71.73 | 76.77 | 85.37 | 96.68 | 91.03 | 84.07 | 71.77 | 63.70 | 57.90 | 75.43 | |||||||||||||
1973 | 56.45 | 59.39 | 55.55 | 69.33 | 76.55 | 87.97 | 92.35 | 93.52 | 84.96 | b | 81.77 | 67.37 | 64.55 | 74.15 | ||||||||||||
1974 | 57.90 | 64.07 | 64.61 | 68.97 | 73.81 | 88.17 | a | 91.55 | 91.65 | 92.33 | 77.29 | 69.00 | 60.68 | 75.00 | ||||||||||||
1975 | 63.13 | 59.79 | 61.19 | 58.30 | 74.29 | 81.83 | 91.19 | 92.13 | 88.57 | ----- | z | 69.87 | 63.81 | 73.10 | a | |||||||||||
1976 | 64.29 | 61.66 | 62.61 | 64.80 | 77.83 | a | ----- | z | 90.45 | 87.77 | 79.43 | 77.00 | 71.13 | 65.55 | 72.96 | a | ||||||||||
1977 | 58.55 | 69.43 | 60.52 | 71.73 | 64.83 | a | 85.40 | 93.73 | a | 90.13 | ----- | z | ----- | z | 73.33 | 66.29 | 73.39 | b | ||||||||
1978 | ----- | z | 59.54 | 63.03 | 65.30 | ----- | z | 89.03 | ----- | z | 92.97 | ----- | z | 85.61 | 64.70 | 58.65 | 72.35 | d | ||||||||
1979 | 53.42 | 60.46 | 62.34 | b | 70.43 | 75.23 | a | ----- | z | 92.84 | 88.06 | 96.47 | 79.65 | 66.57 | ----- | z | 74.55 | b | ||||||||
1980 | 60.13 | 65.21 | 62.68 | 70.40 | 67.83 | a | 83.60 | 96.26 | 101.38 | b | 86.10 | t | 81.48 | j | 71.86 | b | 67.42 | 74.68 | b | |||||||
1981 | 63.84 | 66.29 | 60.13 | 69.53 | 73.71 | 92.23 | 92.55 | 95.00 | 88.50 | 72.16 | 70.83 | 67.55 | 76.03 | |||||||||||||
1982 | 56.10 | b | 61.74 | a | 59.90 | a | 66.63 | 71.26 | 75.50 | 88.87 | 91.27 | a | 83.40 | 76.61 | 62.97 | a | 58.61 | 71.07 | ||||||||
1983 | 65.93 | q | 65.06 | j | 57.90 | 61.23 | 74.13 | 78.37 | 89.26 | 88.77 | 87.43 | 75.39 | 65.03 | 59.84 | 73.74 | b | ||||||||||
1984 | 62.23 | 64.59 | 69.37 | a | 67.83 | 83.55 | 82.47 | 90.68 | 89.26 | 87.37 | ----- | z | 60.43 | 52.58 | 73.67 | a | ||||||||||
1985 | 54.03 | 58.68 | 59.97 | 70.73 | 73.71 | 85.47 | 91.39 | 90.52 | 77.77 | 74.26 | 60.97 | 59.81 | 71.44 | |||||||||||||
1986 | 64.58 | 59.43 | 65.29 | 66.43 | 74.13 | 84.97 | 85.74 | 92.35 | 76.33 | 71.94 | 66.60 | 59.65 | 72.29 | |||||||||||||
1987 | 56.74 | 57.89 | 58.61 | 73.63 | 73.29 | 85.33 | 84.48 | 88.16 | 84.97 | 76.65 | 62.00 | 53.52 | 71.27 | |||||||||||||
1988 | 58.23 | 66.14 | a | 69.81 | 69.37 | 76.26 | 83.70 | 93.68 | 91.97 | 88.00 | 87.00 | 67.73 | 59.87 | 75.98 | ||||||||||||
1989 | 57.55 | 59.71 | 69.13 | 76.73 | 76.81 | 88.03 | 97.65 | 91.55 | 90.97 | 79.32 | 73.63 | 66.94 | 77.33 | |||||||||||||
1990 | 62.39 | 60.14 | 67.16 | 69.67 | 74.29 | 88.50 | 95.23 | 92.35 | 90.57 | 84.87 | 70.60 | 58.94 | 76.23 | |||||||||||||
1991 | 62.29 | 71.82 | 57.39 | 69.53 | 74.23 | 81.80 | 90.48 | 91.42 | 90.93 | 84.03 | 72.47 | 59.68 | 75.51 | |||||||||||||
1992 | 60.81 | 62.97 | 61.45 | 75.97 | 79.87 | 84.83 | 90.23 | 94.26 | 92.07 | 81.39 | 68.13 | ----- | z | 77.45 | a | |||||||||||
1993 | 56.90 | 57.50 | 69.03 | 74.43 | 78.81 | 83.97 | 85.48 | 91.29 | 89.03 | 79.87 | 67.00 | 61.71 | 74.59 | |||||||||||||
1994 | 65.97 | 58.61 | 66.87 | 69.60 | 72.81 | 90.20 | 93.42 | 97.10 | 90.00 | 75.81 | 60.90 | 60.19 | 75.12 | |||||||||||||
1995 | 55.23 | 68.68 | 63.55 | 67.20 | 67.29 | 81.30 | 93.45 | 97.06 | 92.40 | 84.03 | 76.00 | 64.87 | 75.92 | |||||||||||||
1996 | 63.55 | 63.34 | 66.32 | 74.77 | 79.48 | 87.13 | 96.71 | 97.13 | 88.57 | 79.26 | 68.83 | 61.16 | 77.19 | |||||||||||||
1997 | 57.48 | 62.71 | 72.87 | 71.07 | ----- | z | 83.30 | 92.13 | 96.84 | 91.57 | 76.97 | 69.83 | 57.81 | 75.69 | a | |||||||||||
1998 | 61.48 | 55.07 | 63.03 | 64.57 | 66.61 | ----- | z | 94.29 | 97.13 | 86.17 | 77.13 | 69.43 | 60.81 | 72.34 | a | |||||||||||
1999 | 65.13 | 63.11 | 64.13 | 62.13 | 74.00 | 84.07 | 92.58 | 94.94 | 89.90 | 84.97 | 75.57 | 65.48 | 76.33 | |||||||||||||
2000 | 65.06 | 60.24 | 64.97 | 74.23 | 81.65 | 89.80 | 94.13 | 95.84 | 88.40 | 73.87 | 65.07 | 68.13 | 76.78 | |||||||||||||
2001 | 56.77 | 56.82 | 65.74 | 65.80 | 84.03 | 90.50 | 91.68 | 96.19 | 92.27 | 84.06 | 69.40 | 58.26 | 75.96 | |||||||||||||
2002 | 61.68 | 67.07 | 64.71 | 71.97 | 78.58 | 90.40 | 96.19 | 95.06 | 91.63 | 75.13 | 70.93 | 58.81 | 76.85 | |||||||||||||
2003 | 68.84 | 60.39 | 65.77 | 64.20 | ----- | z | 82.97 | 96.26 | 96.74 | 94.30 | 88.45 | 63.52 | a | 60.68 | 76.56 | a | ||||||||||
2004 | 62.03 | 58.72 | 75.26 | 72.90 | 80.94 | 87.73 | 94.84 | 94.32 | 90.93 | 74.94 | 63.17 | 58.77 | 76.21 | |||||||||||||
2005 | 56.52 | 56.32 | 64.23 | 68.40 | 78.19 | 81.67 | 94.71 | 93.52 | 87.20 | 78.74 | 72.53 | 66.61 | 74.89 | |||||||||||||
2006 | 63.29 | 67.57 | 58.06 | 64.67 | 80.55 | 90.97 | 97.19 | 92.61 | 90.50 | 76.90 | 74.73 | 64.52 | 76.80 | |||||||||||||
2007 | 60.23 | 62.75 | 72.29 | 72.37 | 81.32 | 89.30 | 96.19 | 96.13 | 86.43 | 78.71 | 75.67 | 58.13 | 77.46 | |||||||||||||
2008 | 56.10 | 60.62 | 68.00 | 71.07 | 72.61 | 88.13 | 93.55 | 94.29 | 91.67 | 83.68 | 72.80 | 58.87 | 75.95 | |||||||||||||
2009 | 65.68 | 59.21 | 66.13 | 68.13 | 82.90 | 79.57 | 96.23 | 94.00 | 91.37 | 75.65 | 71.93 | 58.10 | a | 75.74 | ||||||||||||
2010 | 61.48 | 58.64 | c | 63.03 | 64.90 | 71.65 | 82.87 | 90.23 | 92.06 | 90.10 | 74.55 | 65.00 | 62.06 | 73.05 | ||||||||||||
2011 | 63.23 | 57.29 | 64.47 | a | 69.07 | a | 70.97 | 82.32 | b | 89.55 | 94.65 | 90.62 | a | 80.23 | 63.87 | 58.16 | 73.70 | |||||||||
2012 | 65.68 | 60.39 | a | 64.08 | g | 70.53 | 77.58 | 84.87 | 90.61 | 94.70 | a | 91.23 | 78.52 | 70.90 | a | 58.03 | 76.64 | a | ||||||||
2013 | 57.35 | 59.11 | 69.65 | 71.63 | 77.65 | 87.80 | 92.71 | 92.13 | 88.93 | a | 75.03 | 66.33 | 60.50 | a | 74.90 | |||||||||||
2014 | 69.84 | 67.07 | 67.84 | 72.43 | 79.03 | 86.60 | 92.23 | 91.55 | 90.87 | 84.58 | 71.07 | 60.71 | 77.82 | |||||||||||||
2015 | 62.90 | 70.89 | 72.66 | b | 73.20 | 70.81 | 90.00 | 88.40 | a | 94.63 | a | 89.07 | 79.60 | a | 66.60 | 59.77 | 76.54 | |||||||||
2016 | 59.19 | 70.24 | 69.26 | 72.10 | 71.65 | 90.62 | a | 94.68 | 93.90 | 84.48 | a | 80.55 | 71.70 | 60.23 | 76.55 | |||||||||||
2017 | 55.00 | 61.39 | 71.83 | a | 74.93 | 75.86 | b | 88.97 | 94.36 | c | 92.11 | c | 84.37 | 83.87 | 73.60 | 70.16 | 77.20 | |||||||||
2018 | 67.77 | 63.82 | 62.81 | 74.13 | 74.19 | 88.00 | 96.13 | 94.42 | 92.14 | a | 77.10 | 70.10 | 61.50 | c | 76.84 | |||||||||||
2019 | 59.74 | 53.59 | a | 62.03 | a | 72.37 | 65.86 | b | 82.28 | a | 91.64 | c | 95.10 | b | 86.55 | a | 79.86 | b | 69.29 | b | 56.74 | 72.92 | ||||
2020 | 63.62 | b | 64.96 | a | 59.03 | a | 67.50 | 81.27 | a | 83.12 | d | 92.55 | b | 97.29 | 94.20 | 85.73 | a | 70.03 | a | 63.55 | 76.90 | |||||
2021 | 61.67 | a | 63.61 | 60.81 | 71.50 | 76.76 | b | 92.73 | d | 95.04 | f | 93.65 | e | 90.07 | 74.45 | 76.65 | d | 60.07 | b | 74.72 | a | |||||
2022 | 63.53 | a | 62.42 | b | 69.10 | b | 72.00 | b | 78.23 | 91.21 | b | 93.87 | a | 95.35 | 90.18 | b | 79.38 | b | 63.87 | 60.10 | a | 76.60 | ||||
2023 | 54.74 | d | 55.63 | a | 56.93 | c | 71.33 | 73.40 | a | 75.76 | a | 95.26 | 91.13 | 82.80 | 79.17 | b | 70.27 | 63.68 | c | 72.51 | ||||||
2024 | 58.71 | 58.52 | 59.71 | 65.56 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.98 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 60.14 | 61.64 | 63.82 | 68.94 | 74.53 | 84.08 | 92.40 | 92.96 | 88.57 | 78.84 | 68.29 | 61.01 | 74.65 | |||||||||||||
S.D. | 4.23 | 4.29 | 4.78 | 4.04 | 4.23 | 4.68 | 2.82 | 2.74 | 3.67 | 4.06 | 4.19 | 3.94 | 1.81 | |||||||||||||
SKEW | -0.39 | 0.27 | 0.35 | -0.54 | 0.02 | -0.34 | -0.44 | 0.09 | -1.00 | 0.25 | -0.14 | 0.43 | -0.28 | |||||||||||||
MAX | 69.84 | 71.82 | 76.71 | 76.73 | 84.03 | 92.73 | 97.65 | 101.38 | 96.47 | 88.45 | 76.65 | 70.94 | 77.82 | |||||||||||||
MIN | 45.55 | 53.59 | 53.58 | 55.97 | 64.83 | 72.40 | 84.48 | 87.00 | 76.33 | 69.74 | 59.50 | 52.58 | 70.41 | |||||||||||||
YRS | 80 | 80 | 80 | 81 | 78 | 78 | 79 | 80 | 79 | 78 | 82 | 80 | 65 |