YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.02 | g | 73.40 | e | 60.53 | b | 48.98 | b | 35.14 | c | 54.51 | h |
1963 | 25.28 | b | 45.44 | b | 46.30 | d | 53.02 | b | 69.42 | 73.59 | b | 84.59 | b | 79.54 | c | 72.71 | b | 63.33 | a | 46.00 | a | 31.39 | c | 57.55 | ||
1964 | 30.34 | 36.22 | b | 41.59 | c | 54.19 | a | 62.82 | 73.34 | b | 83.26 | 79.18 | 69.09 | b | 64.03 | l | 39.02 | i | 36.88 | b | 56.69 | b | ||||
1965 | 37.35 | a | 40.26 | g | 44.84 | 54.89 | b | 61.23 | g | 69.61 | c | 80.45 | b | 78.85 | 67.28 | 59.77 | a | 47.82 | b | 35.74 | 57.66 | b | ||||
1966 | 31.86 | b | 34.21 | 48.92 | 57.25 | 68.61 | 76.23 | 81.69 | 82.29 | 73.50 | 58.27 | 47.02 | 35.14 | b | 57.92 | |||||||||||
1967 | 31.77 | 42.32 | 51.19 | 51.97 | 63.37 | 72.20 | 83.63 | 80.82 | 71.13 | 60.81 | 47.23 | 26.57 | a | 56.92 | ||||||||||||
1968 | 23.34 | 44.52 | 49.03 | 52.82 | ----- | z | 76.72 | 81.02 | 74.71 | 70.05 | 58.73 | 44.32 | 29.05 | 54.94 | a | |||||||||||
1969 | 39.20 | a | 38.41 | 43.73 | 56.02 | 66.92 | a | 73.32 | 82.47 | 83.00 | 72.87 | 54.27 | 43.43 | a | 36.56 | 57.52 | ||||||||||
1970 | 34.82 | 43.77 | 45.16 | 49.43 | 65.55 | 75.28 | 81.95 | b | 82.14 | b | 68.77 | b | 55.07 | b | 45.23 | b | 35.32 | a | 56.87 | |||||||
1971 | 32.62 | b | 39.83 | a | 45.58 | a | 53.24 | c | 60.98 | b | 76.14 | e | 84.43 | c | 81.43 | b | 66.14 | b | 54.19 | 41.22 | 32.15 | a | 55.66 | |||
1972 | 35.15 | e | 43.08 | c | 54.00 | d | 56.88 | d | 65.33 | d | ----- | z | 82.59 | b | 78.28 | a | 69.67 | 58.48 | e | 40.24 | e | 29.93 | d | 55.78 | a | |
1973 | 24.42 | a | 36.58 | b | 44.09 | d | 52.17 | a | 65.45 | j | 72.69 | f | 81.48 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.75 | g |
1974 | ----- | z | ----- | z | ----- | z | 54.75 | 69.50 | 79.40 | 80.77 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 71.10 | h | |||
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | 68.63 | h | 78.42 | f | 79.95 | b | 80.48 | i | 66.54 | b | 55.41 | d | 46.48 | a | 37.31 | e | 57.14 | g |
1987 | 33.57 | d | 41.33 | a | 45.58 | a | 60.14 | b | 66.13 | a | 78.95 | 79.23 | 77.61 | 72.18 | 62.24 | 45.97 | a | 34.48 | f | 60.27 | a | |||||
1988 | 34.82 | a | 42.10 | c | ----- | z | 54.85 | q | 66.16 | f | 76.84 | a | 85.16 | 80.23 | a | 69.78 | 63.45 | a | 47.40 | a | 34.29 | b | 59.34 | c | ||
1989 | 26.83 | a | 38.40 | c | 54.03 | b | 65.15 | 69.10 | 75.93 | b | 84.92 | 78.93 | a | 72.26 | a | 58.66 | 47.02 | 36.63 | a | 58.99 | ||||||
1990 | 34.36 | b | 39.85 | b | 51.35 | a | 60.32 | 66.03 | 79.02 | b | 83.50 | 79.31 | 74.31 | a | 59.18 | c | 44.82 | 28.13 | a | 58.35 | ||||||
1991 | 32.21 | c | 41.64 | 44.62 | c | 55.32 | 63.33 | a | 74.72 | 83.10 | 80.89 | 72.60 | 60.98 | b | 44.03 | a | 33.50 | 57.25 | ||||||||
1992 | 30.74 | 43.59 | 50.22 | b | 63.93 | a | ----- | z | 77.00 | x | 79.84 | b | 79.10 | 71.32 | b | 61.84 | 40.98 | b | 29.11 | c | 55.07 | b | ||||
1993 | 36.60 | a | 41.44 | b | 50.66 | b | 58.09 | a | 68.12 | a | 73.64 | a | 80.67 | a | 77.94 | 70.70 | 57.15 | a | 41.62 | b | 33.48 | g | 59.69 | a | ||
1994 | 36.06 | d | 38.08 | c | 52.59 | c | 57.63 | c | 66.28 | f | 80.52 | b | 84.83 | g | 82.76 | f | 72.44 | d | 58.10 | e | 42.10 | d | 36.82 | f | 54.69 | d |
1995 | 37.72 | d | 47.42 | i | 50.40 | f | 55.98 | i | 62.28 | h | 73.40 | e | 79.81 | d | ----- | z | ----- | z | 61.79 | e | 52.00 | e | 39.38 | c | 57.35 | f |
1996 | 38.28 | f | 44.18 | d | 51.06 | e | 59.23 | d | ----- | z | ----- | z | ----- | z | 82.69 | d | 72.37 | d | 58.65 | h | 45.70 | 39.12 | a | 56.33 | e | |
1997 | 38.42 | 40.77 | 53.15 | e | 54.62 | a | 70.70 | a | 76.88 | b | 81.23 | a | 80.19 | 72.24 | e | 58.16 | b | 46.91 | a | 35.06 | f | 61.21 | a | |||
1998 | 39.34 | c | 41.12 | 49.50 | a | 57.77 | b | 64.60 | a | 73.36 | b | 84.25 | c | 82.38 | c | 72.18 | e | 57.97 | a | 45.43 | 36.21 | 58.68 | ||||
1999 | 41.00 | a | 44.15 | a | 52.64 | b | 53.40 | a | 65.33 | a | 76.43 | c | 80.90 | b | 77.81 | b | 71.43 | 60.48 | 47.72 | 36.34 | 58.97 | |||||
2000 | 40.77 | 43.62 | c | 49.44 | 62.90 | a | 72.73 | 80.38 | a | 84.45 | a | 83.53 | b | 73.78 | 59.76 | 40.08 | 37.77 | 60.77 | ||||||||
2001 | 35.58 | 41.27 | 51.55 | a | 57.50 | 72.43 | c | 79.09 | a | 82.33 | b | 80.45 | b | 75.45 | b | 63.34 | b | 47.90 | 34.66 | 60.13 | ||||||
2002 | 35.87 | a | 39.13 | a | 46.22 | b | 63.12 | a | 68.86 | b | 80.57 | c | 87.36 | b | 81.91 | d | 72.33 | a | 58.08 | f | ----- | z | ----- | z | 63.93 | c |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 78.33 | c | 87.09 | c | 81.43 | a | 73.15 | 63.16 | c | 47.06 | l | 34.96 | q | 76.63 | g | |
2004 | 31.81 | m | 37.21 | j | 54.88 | c | 57.25 | d | 68.47 | a | 77.16 | a | 82.33 | a | 79.07 | b | 70.26 | a | 57.35 | a | 44.10 | e | ----- | z | 65.65 | c |
2005 | ----- | z | ----- | z | 48.08 | a | 54.38 | a | 66.21 | 72.12 | 84.25 | a | 77.35 | a | 70.67 | 58.58 | 45.98 | a | ----- | z | 64.18 | c | ||||
2006 | ----- | z | ----- | z | 45.29 | 57.21 | a | 69.40 | a | 79.70 | 84.31 | 79.73 | 67.27 | 55.78 | a | 45.72 | c | 33.62 | a | 61.80 | b | |||||
2007 | 30.95 | a | 42.82 | 50.50 | 57.67 | c | 67.03 | 78.38 | e | 84.78 | a | 81.47 | 72.88 | 56.55 | 47.43 | a | 34.21 | c | 58.72 | |||||||
2008 | 32.11 | c | 39.88 | 48.48 | a | 53.09 | a | 62.58 | 75.92 | 84.26 | 81.97 | 72.27 | 57.90 | a | 47.50 | a | 35.74 | d | 57.64 | |||||||
2009 | 36.30 | d | 41.20 | 48.70 | a | 54.84 | b | 70.02 | a | 71.90 | 83.55 | 79.52 | 73.60 | a | 55.47 | 44.98 | b | 30.92 | 57.58 | |||||||
2010 | 32.26 | 39.46 | 46.36 | f | 54.30 | e | 61.03 | 76.24 | a | 83.15 | 77.47 | 72.80 | 59.10 | 43.93 | b | 41.39 | d | 58.28 | a | |||||||
2011 | 33.38 | a | 36.88 | 48.45 | a | 54.43 | b | 60.05 | 74.70 | 81.10 | 82.61 | 72.02 | 58.35 | 43.67 | a | 33.27 | 56.58 | |||||||||
2012 | 36.67 | b | 40.48 | 48.89 | 58.66 | a | 68.41 | h | 79.68 | 82.25 | c | 81.98 | a | 72.40 | 59.78 | b | 46.26 | c | 36.84 | b | 58.54 | a | ||||
2013 | 28.48 | 37.15 | b | 49.58 | 56.80 | 66.03 | 79.87 | 83.27 | a | 77.89 | 70.23 | 54.10 | 44.83 | 29.19 | 56.45 | |||||||||||
2014 | 36.05 | 44.77 | 49.21 | 56.10 | 64.45 | 76.87 | 84.24 | 76.94 | 73.97 | 61.39 | 45.72 | a | 39.62 | f | 60.88 | a | ||||||||||
2015 | 33.89 | 45.70 | a | 51.72 | a | 55.92 | 61.21 | c | 77.33 | 79.37 | 78.87 | 73.89 | c | 61.69 | 42.40 | 33.02 | 57.92 | |||||||||
2016 | 33.90 | 41.29 | 51.39 | 56.38 | 63.72 | a | 81.38 | 82.95 | b | 78.16 | 70.12 | b | 61.87 | 47.65 | 37.06 | 58.82 | ||||||||||
2017 | 37.32 | 46.26 | a | 52.76 | 56.07 | 63.60 | 80.08 | 83.47 | 80.02 | 70.18 | 58.19 | e | 49.62 | a | 36.20 | a | 59.48 | |||||||||
2018 | 37.18 | 41.11 | 47.61 | 59.08 | 68.39 | 80.58 | 83.80 | a | 81.84 | 74.80 | 55.90 | 43.58 | e | ----- | z | 61.26 | a | |||||||||
2019 | 33.83 | a | 34.64 | c | 48.93 | p | 58.82 | k | 59.85 | d | 74.02 | b | 81.72 | f | 82.00 | m | 73.70 | 53.71 | 43.63 | 34.47 | 50.98 | d | ||||
2020 | 33.63 | 35.12 | y | 49.30 | i | 62.43 | w | 72.05 | u | 76.73 | 82.37 | 84.50 | 72.37 | 61.61 | 45.62 | b | 31.85 | 61.09 | d | |||||||
2021 | 33.71 | 42.52 | 45.95 | 58.23 | 66.87 | 81.12 | b | 85.05 | 81.52 | 74.17 | 55.16 | 47.98 | 37.37 | 59.14 | ||||||||||||
2022 | 35.56 | 36.80 | 47.27 | 58.57 | 67.71 | 78.62 | ----- | z | 81.61 | 75.45 | 58.81 | 39.25 | 34.60 | 55.84 | a | |||||||||||
2023 | 35.31 | 35.46 | a | 42.56 | 54.37 | 66.73 | 72.02 | 84.88 | a | 79.55 | 71.22 | 59.92 | a | 45.75 | 36.90 | 57.06 | ||||||||||
2024 | 37.92 | 42.69 | 49.89 | 57.06 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.50 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 34.06 | 40.81 | 48.80 | 56.57 | 66.14 | 76.63 | 82.86 | 80.15 | 71.75 | 58.83 | 45.29 | 34.44 | 58.04 | |||||||||||||
S.D. | 4.01 | 3.10 | 3.27 | 3.28 | 3.31 | 2.98 | 1.93 | 2.06 | 2.19 | 2.72 | 2.64 | 3.31 | 1.24 | |||||||||||||
SKEW | -0.81 | -0.34 | -0.22 | 0.59 | -0.10 | -0.27 | 0.03 | -0.20 | -0.74 | -0.13 | -0.24 | -0.47 | 0.26 | |||||||||||||
MAX | 41.00 | 46.26 | 54.88 | 65.15 | 72.73 | 81.38 | 87.36 | 84.50 | 75.45 | 63.45 | 52.00 | 41.39 | 60.77 | |||||||||||||
MIN | 23.34 | 34.21 | 41.59 | 49.43 | 59.85 | 69.61 | 79.23 | 74.71 | 66.14 | 53.71 | 39.25 | 26.57 | 55.66 | |||||||||||||
YRS | 44 | 42 | 43 | 44 | 38 | 45 | 46 | 44 | 48 | 46 | 46 | 39 | 23 |