YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.66 | 80.27 | 69.27 | 61.84 | 49.33 | 40.31 | 63.95 | f | ||||||
1965 | 43.11 | 40.39 | 41.58 | g | 62.95 | i | 68.19 | m | 73.60 | i | 79.58 | m | 78.25 | i | 69.17 | 60.27 | 55.09 | g | 41.86 | m | 53.24 | h | ||||
1966 | 30.78 | a | 34.93 | n | 46.89 | m | 55.44 | n | 66.18 | c | 76.05 | b | 85.23 | a | 74.28 | d | 69.57 | c | 57.27 | 50.05 | 36.21 | c | 60.63 | c | ||
1967 | ----- | z | 39.63 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 79.06 | 73.54 | e | 58.19 | 42.77 | b | 43.71 | l | 63.39 | h | ||
1981 | 43.62 | w | 44.08 | h | 48.31 | e | 60.90 | j | 64.06 | m | 79.43 | b | 79.94 | d | 75.13 | a | 67.87 | c | 59.26 | d | 50.46 | d | 41.77 | 62.77 | d | |
1982 | 37.65 | d | 34.43 | f | 47.33 | d | 54.08 | e | 65.98 | i | 74.73 | f | 81.33 | e | 79.38 | b | 70.81 | a | 56.00 | 43.48 | a | 36.60 | a | 56.30 | c | |
1983 | 34.41 | c | 35.98 | c | 47.13 | e | 50.93 | c | 62.23 | 71.21 | a | 81.23 | 80.95 | a | 74.31 | c | 59.50 | b | 48.35 | j | 27.81 | j | 59.79 | b | ||
1984 | 31.79 | j | 36.24 | l | 44.73 | k | 51.31 | d | 67.13 | e | 75.17 | a | 77.58 | a | 75.87 | a | 65.34 | e | 55.24 | h | 45.83 | j | 38.72 | o | 68.73 | f |
1985 | 33.28 | o | 38.67 | b | 50.67 | b | 59.88 | f | 66.75 | a | 75.13 | 79.60 | 78.42 | a | 70.17 | 57.00 | h | 46.00 | h | 33.58 | g | 65.63 | e | |||
1986 | 43.53 | a | 41.33 | a | 53.55 | a | 58.77 | 64.77 | 73.97 | 80.76 | 77.15 | 71.61 | g | 58.93 | h | 43.03 | 36.65 | 57.35 | b | |||||||
1987 | 34.16 | 42.75 | 44.04 | c | 55.20 | 65.48 | b | 74.46 | b | 79.47 | 75.98 | b | 68.05 | 57.98 | d | 45.32 | 34.57 | d | 56.46 | |||||||
1988 | 29.44 | 37.74 | 43.67 | a | 54.17 | d | 64.35 | a | 74.02 | 76.78 | a | 77.47 | b | 67.60 | 58.68 | a | 47.37 | c | 36.50 | c | 55.65 | |||||
1989 | 37.95 | a | 33.20 | 49.07 | c | 58.59 | a | 67.37 | 70.02 | d | 75.65 | k | 75.95 | 65.93 | 59.29 | 46.59 | a | 34.38 | b | 54.39 | a | |||||
1990 | 40.81 | 44.27 | b | 50.65 | 60.95 | a | 65.95 | a | 81.98 | 79.16 | 77.69 | 72.93 | 57.63 | 49.60 | a | 40.79 | g | 61.97 | a | |||||||
1991 | 38.18 | 48.98 | a | 49.88 | b | 58.43 | 68.60 | a | 75.30 | 77.03 | a | 76.00 | a | 66.88 | 57.11 | 41.00 | a | 37.93 | a | 57.94 | ||||||
1992 | 37.15 | a | 43.84 | a | 50.82 | 60.03 | 64.25 | c | 71.09 | b | 77.16 | 74.26 | 70.17 | d | 58.68 | a | 39.07 | a | 35.50 | b | 56.84 | |||||
1993 | 33.79 | 37.14 | 48.85 | a | 56.09 | a | 66.03 | a | 73.67 | f | 80.57 | b | 77.63 | a | 69.66 | b | 55.63 | 43.24 | c | 38.48 | 55.19 | a | ||||
1994 | 36.39 | 38.98 | a | 49.55 | a | 57.32 | b | 67.24 | 80.35 | 78.18 | 77.70 | a | 70.33 | 58.53 | a | 46.80 | 41.76 | 58.59 | ||||||||
1995 | 39.21 | 44.46 | 48.91 | d | 54.10 | 63.12 | b | 71.93 | 78.21 | 79.53 | 68.20 | 57.90 | a | 48.15 | 38.53 | 57.69 | ||||||||||
1996 | 35.16 | 42.45 | 44.27 | 58.00 | 72.78 | a | 76.98 | 78.08 | 75.82 | a | 66.80 | 58.21 | 46.88 | a | 37.97 | 57.78 | ||||||||||
1997 | 34.93 | a | 38.91 | 49.61 | 50.09 | a | 64.16 | 73.98 | 79.24 | 75.98 | 72.10 | 58.40 | 42.59 | a | 33.98 | 56.17 | ||||||||||
1998 | 39.08 | 42.46 | a | 44.32 | 54.00 | 69.47 | 76.69 | a | 81.19 | 76.39 | 74.65 | 60.06 | 49.30 | 37.50 | 58.76 | |||||||||||
1999 | 40.18 | 46.14 | 47.02 | 55.33 | 62.09 | i | 73.26 | a | 78.55 | 77.74 | 67.35 | 57.40 | 51.07 | 37.94 | 57.45 | a | ||||||||||
2000 | 39.60 | 47.50 | b | 49.56 | 58.03 | a | 69.81 | 74.65 | 80.39 | 81.06 | 72.93 | 59.61 | 40.40 | 32.17 | a | 58.81 | ||||||||||
2001 | 32.79 | 39.93 | 45.29 | 61.52 | 65.15 | a | 76.52 | 82.40 | 77.52 | 70.35 | 58.71 | 50.40 | 38.13 | 58.23 | ||||||||||||
2002 | 38.31 | 39.71 | 45.47 | 59.92 | 66.69 | 78.63 | 79.74 | 79.33 | a | 70.38 | a | 53.84 | 44.88 | 35.58 | 57.71 | |||||||||||
2003 | 39.56 | 38.30 | 49.02 | 58.60 | 68.11 | 71.63 | 81.40 | 79.21 | 68.17 | 60.42 | 47.70 | 39.94 | 58.51 | |||||||||||||
2004 | 38.89 | 39.05 | a | 53.23 | 56.26 | a | 70.06 | 74.03 | 76.63 | 74.16 | 69.87 | 58.60 | 44.66 | a | 39.40 | a | 57.90 | |||||||||
2005 | 40.44 | 43.48 | 46.08 | 55.87 | 64.63 | 74.83 | 78.40 | 75.76 | 73.98 | b | 58.58 | a | 48.28 | 36.15 | 58.04 | |||||||||||
2006 | 41.92 | 40.09 | 49.47 | 62.77 | 69.81 | 78.97 | 81.19 | 78.18 | 66.20 | 58.06 | 47.78 | 36.87 | 59.28 | |||||||||||||
2007 | 32.02 | a | 39.18 | 52.77 | 53.70 | 65.03 | 72.73 | 77.15 | 78.87 | 71.65 | 60.42 | 45.02 | 35.65 | 57.02 | ||||||||||||
2008 | 36.52 | 41.22 | 47.32 | 56.27 | 66.27 | 78.68 | 78.15 | 76.61 | 68.40 | 58.19 | 47.90 | 38.71 | 57.85 | |||||||||||||
2009 | 37.40 | 45.07 | 50.89 | 56.87 | 65.69 | 75.95 | 79.85 | 77.87 | 68.27 | 54.39 | 48.87 | 31.35 | 57.71 | |||||||||||||
2010 | 35.23 | 32.11 | 47.94 | 58.57 | 65.71 | 80.65 | 79.69 | 79.56 | 75.25 | 61.15 | 45.73 | 39.45 | 58.42 | |||||||||||||
2011 | 35.42 | 36.20 | 51.44 | 60.07 | 66.11 | 81.20 | 84.90 | 84.26 | 70.18 | 59.81 | 47.10 | 33.58 | 59.19 | |||||||||||||
2012 | 40.77 | 39.10 | 56.27 | 63.12 | 68.76 | 80.12 | 82.55 | 79.37 | 70.68 | 57.27 | 49.32 | 38.94 | 60.52 | |||||||||||||
2013 | 36.74 | 39.12 | 48.89 | 53.87 | 67.52 | 79.83 | 79.02 | 79.69 | 74.07 | 57.60 | 45.13 | 33.45 | 57.91 | |||||||||||||
2014 | 35.71 | 38.20 | 47.40 | 57.67 | 66.84 | 77.08 | 78.13 | 78.65 | 69.92 | 60.23 | 42.95 | 37.21 | 57.50 | |||||||||||||
2015 | 35.50 | 39.50 | 50.02 | 58.38 | 63.81 | 76.85 | 79.98 | 78.34 | 75.98 | 61.85 | 47.20 | 39.68 | 58.92 | |||||||||||||
2016 | 38.18 | 45.36 | 51.69 | 57.47 | 63.08 | 77.13 | 83.39 | 75.79 | 71.68 | 64.26 | 50.60 | 36.53 | 59.60 | |||||||||||||
2017 | 37.34 | 46.43 | 52.92 | 57.88 | 63.74 | 77.72 | 80.76 | 73.65 | 69.82 | 59.24 | 51.53 | 36.05 | 58.92 | |||||||||||||
2018 | 36.47 | 41.07 | 52.50 | 54.22 | 73.35 | 79.23 | 79.29 | 78.58 | 70.77 | 57.39 | 42.30 | 37.58 | 58.56 | |||||||||||||
2019 | 38.71 | 40.05 | 46.52 | 57.72 | 62.55 | 73.13 | 79.84 | 82.15 | 76.58 | 52.24 | 43.57 | 39.87 | 57.74 | |||||||||||||
2020 | 39.48 | 38.67 | 52.89 | 56.15 | 68.94 | 80.28 | 82.16 | 80.82 | 67.15 | 56.11 | 50.42 | 37.63 | 59.23 | |||||||||||||
2021 | 37.63 | 31.34 | 49.40 | 55.58 | 65.95 | 77.70 | 77.53 | 78.82 | 73.43 | 60.21 | 48.57 | 44.66 | 58.40 | |||||||||||||
2022 | 35.35 | 34.34 | 46.87 | 59.62 | 69.97 | 79.15 | 83.87 | 77.24 | 73.28 | 58.37 | 42.45 | 38.76 | 58.27 | |||||||||||||
2023 | 38.48 | 41.71 | 48.89 | 56.37 | 67.34 | 73.35 | 80.71 | 80.35 | 74.57 | 59.90 | 47.88 | 42.15 | 59.31 | |||||||||||||
2024 | 33.89 | 45.09 | 51.27 | 60.50 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.69 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.17 | 40.47 | 49.11 | 57.01 | 66.60 | 76.22 | 79.98 | 77.92 | 70.53 | 58.51 | 46.44 | 37.46 | 58.16 | |||||||||||||
S.D. | 3.05 | 3.99 | 2.85 | 2.98 | 2.57 | 3.09 | 2.13 | 2.23 | 2.86 | 2.14 | 3.20 | 2.73 | 1.01 | |||||||||||||
SKEW | -0.26 | -0.13 | 0.08 | -0.20 | 0.60 | -0.05 | 0.55 | 0.29 | 0.26 | -0.38 | -0.37 | 0.12 | -0.33 | |||||||||||||
MAX | 43.53 | 48.98 | 56.27 | 63.12 | 73.35 | 81.98 | 85.23 | 84.26 | 76.58 | 64.26 | 51.53 | 44.66 | 60.52 | |||||||||||||
MIN | 29.44 | 31.34 | 43.67 | 50.09 | 62.23 | 70.02 | 76.63 | 73.65 | 65.34 | 52.24 | 39.07 | 31.35 | 55.65 | |||||||||||||
YRS | 43 | 42 | 43 | 42 | 41 | 42 | 44 | 46 | 46 | 44 | 43 | 41 | 33 |