YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 79.48 | 79.65 | 70.00 | 66.94 | 55.10 | 42.70 | a | 65.64 | f | |||||
1966 | 39.41 | b | 39.04 | a | 52.65 | 60.60 | 72.45 | 77.97 | 81.52 | 81.03 | 74.23 | 64.45 | 57.11 | b | 44.16 | 62.05 | ||||||||||
1967 | 44.65 | 50.46 | 56.68 | 54.10 | 66.97 | 72.40 | 81.06 | 79.13 | 73.00 | 68.39 | 59.47 | 39.62 | b | 62.16 | ||||||||||||
1968 | 41.65 | 49.93 | 51.65 | 54.10 | 66.48 | b | 80.33 | c | 81.77 | a | 74.72 | b | 75.12 | e | 67.52 | d | 50.50 | d | 45.28 | f | 63.07 | a | ||||
1969 | 45.83 | h | 44.55 | h | 48.04 | d | 62.13 | 69.87 | 76.83 | 82.66 | b | 81.39 | 75.96 | c | 59.58 | 50.81 | c | 48.20 | f | 67.48 | c | |||||
1970 | 47.07 | d | 51.11 | 47.76 | b | 53.60 | 71.58 | 79.87 | 83.77 | 80.90 | 70.90 | 60.23 | e | 55.90 | 46.66 | b | 62.45 | |||||||||
1971 | 46.39 | 48.21 | 55.23 | 58.97 | 64.00 | 79.07 | a | 86.26 | 78.32 | 75.15 | d | 57.70 | a | 52.57 | 38.41 | d | 61.69 | |||||||||
1972 | 48.86 | b | 54.85 | c | 64.13 | a | 63.24 | i | 71.13 | 75.79 | a | 85.74 | 79.74 | 74.23 | 60.56 | f | 46.20 | j | 41.42 | g | 69.31 | d | ||||
1973 | 39.44 | f | 42.96 | c | 41.61 | c | 53.32 | b | 68.96 | c | 79.31 | a | 82.80 | a | 81.94 | 77.26 | c | 69.70 | a | 54.75 | b | 49.59 | i | 65.26 | b | |
1974 | 42.07 | c | 46.38 | b | 56.24 | b | 60.85 | c | 73.39 | 85.93 | 82.55 | 81.03 | b | 75.04 | b | 64.55 | i | 53.20 | e | 45.04 | h | 65.67 | b | |||
1975 | 44.57 | a | 43.76 | c | 47.00 | b | 51.04 | b | 65.81 | 77.87 | 82.07 | a | 83.10 | a | 74.33 | c | 67.79 | l | 54.15 | j | 45.28 | m | 63.28 | c | ||
1976 | 46.06 | m | 50.11 | k | 52.64 | i | 56.45 | h | 69.40 | k | 77.84 | k | 81.65 | 80.47 | a | 71.47 | 62.33 | a | 53.67 | 47.84 | 66.24 | f | ||||
1977 | 40.19 | 51.11 | a | 48.87 | 61.77 | 64.13 | 79.90 | 83.00 | 80.03 | 74.30 | c | 67.03 | 56.55 | j | 53.68 | 64.00 | a | |||||||||
1978 | 45.19 | 44.63 | a | 55.16 | 61.67 | 68.90 | 82.53 | 85.39 | 82.23 | 76.13 | 71.20 | a | 50.23 | 38.83 | a | 63.51 | ||||||||||
1979 | 41.58 | 47.30 | a | 52.06 | 62.50 | 65.23 | 76.97 | 85.94 | 80.45 | 80.31 | d | 69.74 | 50.07 | 48.90 | 63.42 | |||||||||||
1980 | 42.00 | k | 50.41 | 50.86 | b | 58.87 | 61.23 | 81.63 | 85.32 | 81.13 | 77.10 | 65.83 | a | 56.80 | 53.03 | 65.66 | a | |||||||||
1981 | 50.06 | 52.68 | 49.71 | 64.33 | 68.58 | 83.97 | 82.45 | 80.74 | 73.59 | a | 61.13 | 58.77 | 49.84 | 64.65 | ||||||||||||
1982 | 43.06 | 41.67 | j | 51.17 | b | 62.32 | h | 65.38 | j | 78.10 | i | 82.00 | 78.43 | a | 73.70 | 63.73 | e | 48.31 | a | 41.33 | a | 60.22 | d | |||
1983 | 45.16 | 45.11 | 47.32 | 51.47 | 65.08 | f | 76.52 | a | 82.61 | 78.48 | 77.33 | 62.00 | 51.63 | 46.00 | 60.33 | a | ||||||||||
1984 | 46.12 | f | 47.55 | i | 55.41 | i | 57.03 | 76.52 | 78.07 | 81.21 | b | 77.07 | d | 73.60 | 57.37 | d | 53.80 | j | 41.16 | l | 71.55 | e | ||||
1985 | 40.71 | g | 45.32 | i | 51.05 | i | 62.11 | c | 70.27 | a | 83.53 | 84.13 | a | 81.32 | 69.43 | 63.44 | d | 50.23 | h | 47.19 | j | 73.46 | e | |||
1986 | 54.14 | j | 50.89 | i | 56.24 | j | 61.35 | g | 68.77 | a | 79.57 | 78.57 | c | 80.00 | 69.03 | a | 59.68 | f | 52.87 | g | 46.55 | i | 75.19 | g | ||
1987 | 46.00 | k | 43.20 | h | 48.26 | h | 64.85 | c | 66.53 | a | 80.36 | b | 80.14 | c | 76.54 | c | 74.62 | d | 68.00 | h | 52.53 | k | 46.78 | h | 73.84 | f |
1988 | 46.89 | m | 51.20 | i | 55.70 | h | 60.22 | g | 69.37 | a | 78.72 | e | 82.48 | 78.34 | b | 72.85 | d | 70.54 | e | 54.48 | g | 42.25 | k | 75.38 | f | |
1989 | 40.77 | i | 47.05 | i | 58.00 | g | 69.19 | i | 71.29 | 79.59 | c | 83.67 | a | 78.21 | b | 76.15 | j | 64.00 | b | 55.52 | g | 50.05 | k | 75.35 | g | |
1990 | 45.96 | h | 46.47 | i | 53.86 | i | 62.50 | d | 68.06 | 82.60 | 80.77 | a | 77.90 | a | 74.97 | 68.05 | j | 51.95 | j | 40.81 | j | 74.47 | f | |||
1991 | 42.22 | h | 53.90 | h | 44.95 | j | 58.71 | b | 66.93 | a | 72.21 | k | 81.52 | f | 79.90 | 74.81 | c | 67.82 | i | 54.89 | k | 40.81 | j | 70.09 | h | |
1992 | 39.71 | j | 46.53 | j | 51.41 | i | 65.31 | a | 66.93 | a | 75.40 | 79.32 | 77.71 | c | 75.80 | 68.40 | f | 49.63 | k | 42.33 | j | 73.41 | f | |||
1993 | 45.53 | l | 43.95 | h | 56.78 | h | 63.14 | i | 72.00 | e | 77.60 | 81.06 | 79.11 | c | 74.90 | 64.65 | h | 52.89 | k | 45.85 | k | 76.93 | g | |||
1994 | 50.16 | l | 45.79 | i | 56.18 | i | 60.57 | b | 67.10 | 82.23 | 83.48 | b | 82.87 | a | 76.00 | a | 64.65 | k | 49.58 | k | 47.62 | j | 75.38 | f | ||
1995 | 43.47 | l | 54.00 | j | 53.70 | h | 55.63 | k | 62.65 | 75.73 | 83.13 | a | 82.17 | b | 77.18 | b | 70.52 | j | 61.11 | l | 57.31 | r | 76.17 | g | ||
1996 | 51.35 | n | 51.85 | i | 55.48 | j | 65.69 | d | 75.00 | 82.31 | a | 84.82 | c | 83.00 | a | 71.38 | a | 66.20 | f | 56.83 | l | 52.14 | j | 77.03 | f | |
1997 | 43.35 | n | 46.44 | j | 61.24 | j | 60.45 | h | 74.16 | 77.90 | a | 83.10 | 79.90 | a | 75.97 | a | 66.05 | j | 59.56 | l | 45.75 | k | 78.20 | g | ||
1998 | 50.40 | k | 43.89 | j | 53.00 | i | 53.41 | h | 64.35 | k | 74.90 | i | 83.57 | h | 82.50 | i | 76.22 | g | 64.90 | j | 56.79 | k | 46.68 | i | ----- | z |
1999 | 51.74 | l | 53.28 | j | 58.96 | g | 57.43 | i | 68.09 | i | 77.43 | i | 80.17 | g | 78.55 | i | 74.13 | g | 71.50 | k | 65.74 | k | 48.58 | l | ----- | z |
2000 | 54.16 | l | 52.95 | i | ----- | z | 68.67 | l | 76.16 | f | 81.10 | a | 86.25 | k | 80.24 | f | 78.55 | j | 66.47 | p | 48.24 | m | 51.47 | l | 81.10 | k |
2001 | 42.58 | l | 46.42 | i | 55.04 | h | 59.39 | l | 75.74 | h | 81.00 | j | 79.53 | l | 80.26 | l | 79.62 | i | 70.55 | i | 54.25 | j | 44.57 | q | ----- | z |
2002 | 45.86 | i | 52.11 | i | 57.10 | k | 67.82 | h | 75.91 | h | 84.52 | c | 85.12 | f | 83.27 | e | 76.42 | f | 63.24 | j | 55.63 | k | 44.25 | o | 83.89 | j |
2003 | 54.00 | k | 48.21 | i | 53.77 | i | 58.14 | h | 73.78 | h | 80.05 | i | 86.60 | a | 81.08 | g | 76.05 | i | 73.10 | k | 52.81 | n | 48.67 | m | 86.60 | k |
2004 | 43.32 | i | 44.63 | j | 60.73 | i | 60.78 | g | 72.48 | h | 80.45 | h | 81.79 | g | 78.55 | i | 74.22 | g | 60.80 | k | 49.76 | i | 47.10 | j | ----- | z |
2005 | 45.62 | j | 44.52 | g | 50.41 | n | 60.76 | i | 71.91 | h | 77.83 | g | 85.88 | g | 77.29 | c | 76.09 | g | 66.73 | i | 60.10 | 49.65 | 62.34 | i | ||
2006 | 47.48 | 53.00 | 47.45 | 61.57 | 74.03 | 82.67 | 82.74 | 76.52 | 69.97 | 61.84 | 57.50 | 44.58 | 63.28 | |||||||||||||
2007 | 38.77 | 47.18 | 56.55 | 61.23 | 70.42 | 80.70 | 83.68 | 79.71 | 76.15 | d | 65.65 | 60.03 | 41.48 | 63.46 | ||||||||||||
2008 | 39.19 | 45.48 | 54.74 | 61.57 | 65.68 | 81.23 | 80.77 | 80.81 | 75.33 | 67.94 | 57.13 | 47.35 | e | 63.10 | ||||||||||||
2009 | 47.29 | 49.88 | c | 55.93 | a | 59.93 | 73.32 | 73.23 | 83.55 | 81.81 | 74.67 | 61.39 | 57.57 | 39.39 | 63.16 | |||||||||||
2010 | 44.10 | a | 43.86 | 50.90 | 58.40 | 65.11 | c | 79.15 | c | 81.87 | 78.26 | 78.17 | 66.04 | h | 52.71 | b | 49.31 | b | 61.99 | a | ||||||
2011 | 43.81 | 42.56 | c | 55.58 | g | 60.70 | g | 65.41 | d | 79.19 | c | 81.78 | d | 83.03 | 75.83 | 67.00 | 51.03 | 40.55 | 63.02 | b | ||||||
2012 | 48.58 | 47.41 | b | 53.58 | 63.50 | 72.45 | 83.10 | a | 80.77 | 81.06 | 74.97 | a | 68.23 | 60.26 | g | 44.39 | c | 65.28 | a | |||||||
2013 | 37.90 | b | 42.22 | a | 56.74 | 60.23 | d | 69.62 | b | 84.10 | 81.42 | 78.13 | 72.34 | a | 62.90 | a | 49.41 | h | 42.71 | 62.57 | a | |||||
2014 | 52.29 | 54.00 | a | 56.48 | 59.71 | f | 69.13 | 81.97 | 81.23 | 77.23 | 74.20 | 68.19 | 56.47 | 45.89 | c | 65.19 | a | |||||||||
2015 | 46.32 | 56.71 | 58.10 | 61.40 | 63.83 | a | 80.64 | b | 78.58 | 81.77 | 76.77 | 65.00 | 50.10 | 44.03 | 63.61 | |||||||||||
2016 | 43.71 | 54.55 | 59.23 | 59.55 | a | 66.16 | 84.93 | 84.65 | 76.77 | 72.97 | 70.00 | a | 55.20 | 47.10 | 64.57 | |||||||||||
2017 | 39.93 | a | 51.00 | 59.71 | 63.70 | 69.19 | 85.63 | 82.81 | 80.84 | 75.43 | 70.42 | 62.57 | b | 53.96 | d | 66.27 | ||||||||||
2018 | 51.00 | b | 50.81 | b | 55.65 | 66.69 | a | 71.90 | 85.67 | 84.97 | 82.52 | 79.60 | 61.10 | 53.37 | 44.19 | d | 65.62 | |||||||||
2019 | 43.06 | 41.29 | 52.81 | 63.40 | 61.26 | 79.43 | 84.97 | 83.32 | 73.73 | 65.03 | 55.64 | e | 41.14 | b | 62.09 | |||||||||||
2020 | 48.28 | f | 50.44 | d | 52.82 | c | 62.07 | b | 76.20 | f | 82.86 | b | 86.00 | a | 88.87 | 80.14 | a | 73.06 | 58.20 | 45.81 | 68.03 | b | ||||
2021 | 45.13 | a | 49.58 | b | 53.69 | b | 64.13 | 73.59 | d | 86.00 | 83.10 | 81.84 | 78.20 | 62.00 | 58.30 | 45.43 | a | 65.08 | ||||||||
2022 | 45.55 | 45.52 | a | 52.61 | 64.67 | 74.00 | b | 81.37 | 81.39 | 75.52 | 77.60 | 63.29 | 48.93 | 46.13 | a | 63.05 | ||||||||||
2023 | 40.23 | 41.56 | a | 47.17 | a | 63.00 | 69.31 | b | 76.20 | 90.16 | 82.10 | 76.67 | 69.00 | 56.40 | 49.48 | b | 63.44 | |||||||||
2024 | 43.73 | e | 47.07 | 48.32 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.37 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 44.31 | 48.00 | 52.82 | 60.54 | 68.88 | 80.29 | 82.84 | 80.14 | 74.85 | 65.27 | 54.85 | 45.42 | 63.51 | |||||||||||||
S.D. | 3.67 | 4.40 | 4.55 | 3.93 | 3.74 | 3.28 | 2.22 | 2.47 | 2.57 | 3.95 | 3.67 | 4.23 | 1.25 | |||||||||||||
SKEW | 0.20 | -0.05 | -0.00 | -0.91 | -0.08 | -0.20 | 0.60 | 0.44 | -0.22 | -0.08 | -0.01 | 0.24 | 0.63 | |||||||||||||
MAX | 52.29 | 56.71 | 64.13 | 66.69 | 76.52 | 86.00 | 90.16 | 88.87 | 80.31 | 73.06 | 62.57 | 53.96 | 66.27 | |||||||||||||
MIN | 37.90 | 39.04 | 41.61 | 51.04 | 61.23 | 72.40 | 78.57 | 74.72 | 69.03 | 57.37 | 48.31 | 38.41 | 61.69 | |||||||||||||
YRS | 32 | 34 | 35 | 39 | 46 | 49 | 51 | 53 | 50 | 37 | 33 | 32 | 19 |