YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1950 | ----- | z | ----- | z | ----- | z | 60.55 | t | 63.28 | a | 71.79 | b | 79.10 | b | 77.48 | f | 69.12 | a | 63.62 | b | 49.61 | c | 44.13 | a | 62.95 | e |
1951 | 38.62 | b | 42.44 | c | 48.30 | a | 57.05 | b | 64.89 | c | 71.29 | a | 80.61 | 77.05 | j | 71.93 | b | 58.26 | h | 44.06 | c | 36.48 | d | 55.57 | b | |
1952 | 38.52 | b | 42.54 | d | 44.07 | c | 57.50 | c | 66.20 | f | 70.50 | h | 78.19 | r | 80.10 | u | 72.59 | b | 63.88 | e | 43.64 | b | 39.34 | i | 51.82 | e |
1953 | 43.91 | d | 40.08 | j | ----- | z | 55.31 | d | 56.87 | e | 70.89 | g | 81.46 | e | 78.00 | e | ----- | z | 51.38 | w | 49.68 | e | 37.54 | e | 57.54 | e |
1954 | 39.21 | l | 47.65 | k | 46.06 | f | 60.02 | i | 67.50 | i | 68.97 | o | 80.96 | h | 75.73 | p | 70.68 | h | 59.14 | m | 50.44 | e | 38.94 | e | 44.69 | j |
1955 | 35.97 | a | 37.22 | e | 47.27 | a | 53.52 | b | 63.39 | h | 72.50 | a | 77.31 | e | 78.61 | h | 71.70 | c | 61.40 | f | 47.48 | c | 43.88 | a | 54.09 | c |
1956 | 43.21 | 38.69 | 49.57 | b | 56.23 | 65.42 | a | 74.10 | d | 79.23 | a | 75.95 | a | 73.04 | b | 55.11 | m | 44.42 | f | 39.87 | 59.53 | b | ||||
1957 | 39.27 | 49.32 | 50.69 | 54.45 | 60.55 | 75.17 | 79.98 | a | 77.77 | c | 73.07 | p | 57.40 | 43.09 | a | 40.89 | 57.14 | a | ||||||||
1958 | 39.26 | 46.40 | b | 45.56 | 53.39 | b | 67.73 | 72.20 | 76.33 | b | 81.26 | 72.03 | 60.11 | i | 45.82 | 41.11 | 58.28 | a | ||||||||
1959 | 39.40 | a | 41.80 | 49.65 | 59.95 | 62.73 | 75.73 | ----- | z | 77.29 | 67.85 | 59.42 | f | 45.83 | 41.18 | 56.14 | b | |||||||||
1960 | 34.95 | 39.69 | 51.74 | 56.77 | 64.40 | 75.45 | 81.12 | b | 78.48 | 73.91 | b | 57.55 | 47.32 | 37.02 | a | 58.20 | ||||||||||
1961 | 37.50 | 44.66 | 47.98 | 56.13 | 64.81 | b | 77.80 | 82.71 | 80.48 | 67.60 | 57.90 | 44.68 | 37.03 | 58.28 | ||||||||||||
1962 | 36.84 | 44.93 | 46.10 | a | 62.45 | 62.45 | 72.88 | 78.60 | 78.27 | 74.13 | 61.34 | 50.60 | 39.63 | 59.02 | ||||||||||||
1963 | 32.80 | a | 48.48 | 47.92 | 52.81 | a | 67.35 | a | 68.77 | 78.35 | ----- | z | 72.87 | 62.87 | 48.07 | b | 36.47 | 56.07 | a | |||||||
1964 | 34.79 | 40.33 | 45.34 | 53.90 | 62.48 | ----- | z | 81.44 | 77.39 | 68.38 | 62.95 | 42.62 | 40.40 | 55.46 | a | |||||||||||
1965 | 40.98 | b | 40.84 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.23 | 60.61 | c | 50.40 | 40.50 | 49.76 | f | ||||
1966 | 37.40 | 40.98 | 52.58 | 57.53 | 67.11 | c | 72.93 | 78.90 | 79.21 | 72.35 | 58.47 | 49.58 | 38.98 | 58.84 | ||||||||||||
1967 | 37.42 | a | 43.29 | 50.65 | 50.18 | 63.89 | 70.22 | 81.65 | a | 81.65 | 71.82 | 61.52 | a | 50.02 | 33.68 | 58.00 | ||||||||||
1968 | 38.48 | 49.59 | 51.90 | 54.62 | 65.72 | a | 74.72 | 78.77 | 74.13 | 69.38 | b | 58.95 | 46.92 | 34.35 | 58.13 | |||||||||||
1969 | 40.24 | 40.34 | 48.21 | 57.78 | 67.32 | 72.35 | 80.61 | 82.71 | 73.57 | a | 56.46 | d | 48.50 | 41.08 | m | 60.74 | a | |||||||||
1970 | 40.52 | a | 49.27 | 48.45 | 52.00 | 65.74 | 74.53 | 80.39 | 80.20 | a | 67.02 | 56.45 | 49.04 | f | 38.15 | 59.34 | a | |||||||||
1971 | 38.16 | 43.64 | 49.71 | 57.07 | 62.06 | 73.63 | 80.83 | a | 79.37 | 69.37 | 56.60 | 45.80 | 37.24 | 57.79 | ||||||||||||
1972 | 37.47 | 45.79 | 57.13 | 58.12 | 65.64 | b | 75.00 | 82.48 | 76.84 | 68.78 | 57.69 | 44.20 | 35.11 | 58.69 | ||||||||||||
1973 | 32.89 | 45.04 | 45.74 | 54.53 | 67.24 | 74.65 | 81.40 | e | 77.69 | 69.37 | 59.92 | 47.22 | 41.48 | 58.10 | ||||||||||||
1974 | 36.24 | 43.04 | 53.13 | 55.77 | 67.61 | 77.63 | 79.08 | 76.63 | 73.08 | 62.80 | a | 48.50 | a | 37.13 | 59.22 | |||||||||||
1975 | 37.02 | 42.14 | 46.68 | 50.38 | 62.60 | b | 73.47 | 79.92 | 76.74 | 70.98 | 57.73 | 45.83 | 42.18 | 57.14 | ||||||||||||
1976 | 40.56 | 46.11 | b | 48.58 | 55.52 | 68.05 | a | 74.07 | 80.79 | 76.31 | 71.12 | 58.48 | 48.55 | 39.19 | 58.94 | |||||||||||
1977 | 38.79 | 48.21 | 47.03 | a | 61.32 | 61.15 | 77.17 | 81.00 | a | 80.80 | a | 72.53 | 62.69 | 49.88 | 44.52 | a | 60.42 | |||||||||
1978 | 43.05 | b | 46.62 | 54.62 | j | 56.18 | 64.56 | 75.68 | 81.42 | 78.52 | 70.73 | 64.81 | 46.76 | a | 35.29 | 60.33 | a | |||||||||
1979 | 33.82 | 39.48 | 50.87 | 58.50 | 67.18 | 76.93 | 82.47 | 78.61 | 77.35 | 65.13 | 46.37 | 42.47 | 59.93 | |||||||||||||
1980 | 42.79 | 48.60 | 49.18 | 59.82 | 63.55 | 73.93 | 84.35 | 80.00 | 73.48 | 62.13 | 50.52 | 46.81 | 61.26 | |||||||||||||
1981 | 45.26 | 48.41 | 50.77 | 62.88 | 67.11 | 80.58 | 85.53 | 83.89 | 75.35 | 59.58 | 53.75 | 43.39 | 63.04 | |||||||||||||
1982 | 38.48 | a | 45.57 | 51.17 | a | 57.80 | 67.71 | 75.61 | b | 80.79 | 81.87 | 72.25 | 57.82 | a | 46.77 | 39.21 | 59.59 | |||||||||
1983 | 42.37 | 46.75 | 51.00 | a | 53.22 | 64.10 | 75.29 | a | 80.23 | 79.60 | 74.83 | 60.68 | 48.28 | 41.87 | a | 59.85 | ||||||||||
1984 | 39.47 | 43.52 | 52.76 | 57.48 | c | 72.19 | 75.27 | 82.79 | 80.53 | 74.98 | 56.08 | 47.70 | 41.05 | c | 60.32 | |||||||||||
1985 | 40.00 | 42.70 | 50.60 | 63.85 | 69.57 | a | 81.02 | a | 85.12 | a | 82.11 | 68.78 | a | 60.61 | 46.41 | b | 41.81 | 61.05 | ||||||||
1986 | 46.32 | 48.21 | 56.16 | 59.13 | 68.50 | 79.90 | 79.29 | 81.68 | 66.72 | a | 58.19 | 49.33 | 40.55 | a | 61.17 | |||||||||||
1987 | 38.23 | a | 45.09 | a | 48.74 | 63.98 | a | 69.05 | 80.02 | 79.47 | 80.92 | 74.37 | 65.30 | a | 48.40 | 38.44 | 61.00 | |||||||||
1988 | 39.97 | b | 47.86 | 52.05 | a | 59.67 | a | 67.72 | a | 79.17 | 84.22 | a | 81.03 | 72.62 | 68.02 | 50.16 | a | 40.08 | 61.88 | |||||||
1989 | 36.85 | 43.55 | 57.80 | c | 65.60 | 68.58 | a | 76.72 | a | 84.31 | 78.40 | 72.75 | 60.34 | 49.97 | 41.85 | 61.39 | ||||||||||
1990 | 41.06 | 44.45 | 55.82 | 62.93 | b | 66.29 | 78.03 | a | 83.14 | c | 79.25 | a | 74.83 | 62.43 | a | 48.11 | b | 34.72 | b | 60.92 | ||||||
1991 | 38.65 | 50.38 | 48.81 | b | 57.48 | 64.57 | a | 74.55 | a | 83.77 | 81.32 | 74.87 | 64.47 | 47.45 | 39.15 | a | 60.46 | |||||||||
1992 | 39.24 | b | 50.15 | b | 53.43 | d | 65.20 | 70.30 | a | 76.47 | 80.77 | a | 81.79 | 75.73 | 65.16 | 45.05 | b | 37.55 | 61.74 | |||||||
1993 | 42.12 | a | 44.11 | 55.65 | 60.16 | a | 70.72 | b | 75.10 | 80.08 | 80.40 | 74.21 | a | 59.81 | b | 44.75 | b | 40.02 | 60.59 | |||||||
1994 | 42.19 | b | 42.04 | a | 56.90 | a | 60.38 | b | 69.13 | a | 80.52 | a | 83.65 | a | 82.92 | 74.77 | 58.87 | 42.22 | c | 41.75 | a | 61.28 | ||||
1995 | 41.82 | 51.41 | 51.74 | 55.98 | a | 63.53 | a | 72.56 | c | 81.90 | 82.74 | 74.72 | a | 62.05 | 53.00 | a | 44.10 | 61.30 | ||||||||
1996 | 43.43 | c | 50.41 | a | 54.82 | c | 62.37 | c | 70.63 | 79.45 | 84.74 | 83.95 | 73.82 | 61.27 | 49.85 | 43.24 | b | 63.17 | ||||||||
1997 | 41.02 | b | 45.61 | a | 56.84 | 57.52 | b | 73.47 | 76.48 | a | 81.47 | 82.63 | 75.47 | 60.47 | 51.23 | 39.98 | 61.85 | |||||||||
1998 | 44.21 | 44.88 | 51.63 | 56.02 | 65.48 | 72.45 | 83.44 | 83.10 | 72.16 | a | 59.89 | 48.15 | 40.57 | a | 60.16 | |||||||||||
1999 | 44.28 | a | 47.71 | 55.28 | a | 55.30 | b | 67.53 | a | 76.02 | 82.00 | a | 82.05 | a | 74.42 | 65.15 | a | 52.95 | 41.25 | e | 62.00 | |||||
2000 | 45.03 | 48.11 | b | 52.80 | a | 64.20 | b | 71.85 | 79.25 | 82.47 | 81.55 | 74.45 | 60.95 | 42.80 | 43.29 | 62.23 | ||||||||||
2001 | 41.94 | 45.88 | b | 54.77 | a | 59.57 | a | 73.30 | a | 81.37 | 84.15 | 84.30 | a | 78.13 | 65.66 | 52.70 | 39.32 | 63.42 | ||||||||
2002 | 41.23 | 45.93 | 51.34 | 64.35 | 68.21 | 79.33 | 86.21 | 82.06 | 74.60 | a | 61.05 | a | 49.02 | 42.37 | 62.14 | |||||||||||
2003 | 47.61 | 45.75 | 52.81 | 57.10 | 70.32 | 78.65 | 86.98 | 83.77 | 75.95 | 68.77 | a | 47.35 | 42.53 | 63.13 | ||||||||||||
2004 | 40.08 | 42.26 | 60.55 | 60.62 | 69.39 | 79.68 | 83.87 | 80.81 | 73.67 | 61.77 | 47.77 | 42.44 | 61.91 | |||||||||||||
2005 | 45.26 | 47.20 | a | 51.97 | 57.48 | 68.73 | 75.22 | 85.56 | 81.15 | 74.25 | 63.29 | 51.32 | 41.31 | 61.89 | ||||||||||||
2006 | 43.47 | 46.80 | 49.53 | 61.40 | ----- | z | 81.85 | 87.27 | 84.21 | 73.67 | 61.27 | c | 51.65 | 40.53 | 61.97 | a | ||||||||||
2007 | 37.11 | 48.96 | 57.74 | 63.72 | 72.50 | 80.77 | 88.10 | 85.45 | 76.33 | 63.34 | 53.73 | 39.74 | 63.96 | |||||||||||||
2008 | 40.45 | 45.27 | a | 53.32 | 59.72 | 67.57 | a | 79.77 | 86.79 | 84.63 | 77.78 | 64.00 | 53.88 | a | 40.22 | a | 62.78 | |||||||||
2009 | 43.82 | 47.41 | 53.95 | 60.63 | 76.70 | a | 78.72 | a | 89.82 | 85.48 | 79.87 | 61.02 | 52.90 | 38.52 | a | 64.07 | ||||||||||
2010 | 42.23 | 45.82 | c | 52.13 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.18 | 47.13 | 43.19 | 48.95 | f | |||||
2011 | 38.48 | 41.62 | 51.60 | 56.88 | 61.73 | 75.35 | 83.50 | 85.74 | 76.17 | 62.08 | 47.23 | 37.81 | 59.85 | |||||||||||||
2012 | 41.24 | 44.86 | 51.97 | 62.03 | 71.03 | 80.30 | 83.82 | 84.00 | 76.32 | 63.47 | 51.70 | 41.97 | 62.73 | |||||||||||||
2013 | 36.16 | 42.39 | 55.53 | b | 59.53 | 67.74 | 81.15 | 85.76 | 80.61 | 72.48 | 58.73 | 48.82 | 35.11 | 60.34 | ||||||||||||
2014 | 42.73 | 47.55 | 53.19 | 60.87 | 67.73 | 79.27 | 85.05 | 78.85 | 77.13 | 61.92 | 46.47 | 39.44 | 61.68 | |||||||||||||
2015 | 39.34 | 48.50 | 55.87 | 57.52 | 62.90 | 81.87 | 79.47 | 81.98 | 78.34 | a | 66.68 | 45.50 | 38.31 | 61.36 | ||||||||||||
2016 | 40.31 | 47.91 | 54.45 | 59.85 | 66.73 | 83.30 | 82.95 | 80.84 | 72.13 | 65.69 | 52.35 | 39.66 | 62.18 | |||||||||||||
2017 | 40.58 | 48.50 | a | 56.74 | 58.95 | 67.21 | 82.42 | 86.13 | a | 82.47 | 73.05 | 61.47 | 53.32 | 41.90 | 62.73 | |||||||||||
2018 | 44.44 | 44.46 | 51.40 | 61.43 | 69.15 | 80.03 | 85.53 | 83.18 | 77.72 | 60.15 | 44.97 | a | 40.56 | 61.92 | ||||||||||||
2019 | 40.03 | 40.09 | 51.47 | 60.57 | 60.74 | 76.47 | 83.66 | 82.10 | 74.80 | 56.47 | 48.90 | 39.55 | 59.57 | |||||||||||||
2020 | 41.14 | c | 43.93 | 51.69 | 59.80 | 70.98 | 77.53 | a | 84.27 | c | 84.89 | 76.50 | 63.21 | 49.20 | 39.98 | 61.93 | ||||||||||
2021 | 41.68 | 46.41 | 50.40 | 62.13 | 69.98 | 82.64 | b | 83.71 | 84.37 | 76.81 | a | 58.24 | 52.88 | 42.61 | 62.66 | |||||||||||
2022 | 40.90 | 43.94 | a | 52.63 | 60.00 | a | 68.15 | 79.82 | 86.02 | 83.25 | a | 78.30 | 63.32 | 43.82 | 41.35 | 61.79 | ||||||||||
2023 | 40.68 | 40.88 | 46.39 | 58.48 | 69.66 | 74.82 | 87.85 | 79.10 | a | 71.16 | a | 62.58 | 48.87 | 43.55 | 60.33 | |||||||||||
2024 | 40.73 | a | 46.86 | 51.58 | 58.76 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.39 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 40.17 | 45.13 | 51.60 | 58.47 | 66.92 | 76.76 | 82.55 | 80.90 | 73.27 | 61.38 | 48.33 | 40.10 | 60.88 | |||||||||||||
S.D. | 3.09 | 3.18 | 3.45 | 3.51 | 3.57 | 3.35 | 2.83 | 2.64 | 3.09 | 2.95 | 2.97 | 2.66 | 1.70 | |||||||||||||
SKEW | -0.12 | -0.27 | 0.11 | -0.12 | -0.08 | -0.05 | 0.23 | -0.26 | -0.38 | 0.18 | -0.01 | -0.29 | -0.29 | |||||||||||||
MAX | 47.61 | 51.41 | 60.55 | 65.60 | 76.70 | 83.30 | 89.82 | 85.74 | 79.87 | 68.77 | 53.88 | 46.81 | 64.07 | |||||||||||||
MIN | 32.80 | 37.22 | 44.07 | 50.18 | 56.87 | 68.77 | 76.33 | 74.13 | 65.23 | 56.08 | 42.22 | 33.68 | 57.14 | |||||||||||||
YRS | 73 | 72 | 70 | 70 | 68 | 68 | 69 | 66 | 70 | 67 | 72 | 72 | 56 |