YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.28 | a | 57.81 | 40.83 | 25.54 | e | 46.86 | h | ||
1963 | 8.75 | g | 18.81 | a | 39.61 | 55.07 | 62.73 | a | 75.64 | b | 80.82 | c | 78.67 | p | 69.27 | ----- | z | ----- | z | ----- | z | 57.42 | e | |||
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.69 | b | 71.39 | 64.43 | 55.03 | 38.64 | b | 19.10 | a | 55.21 | f | |||
1965 | 16.94 | 19.25 | 28.26 | 49.37 | 65.58 | 70.87 | 75.10 | 74.58 | 57.43 | 56.39 | 35.79 | a | 28.48 | 48.17 | ||||||||||||
1966 | 11.52 | 23.93 | 39.61 | c | 44.97 | 61.61 | 75.47 | 82.40 | a | 73.40 | a | 67.43 | ----- | z | 33.52 | e | 22.84 | 48.79 | a | |||||||
1967 | 21.03 | 18.57 | 37.90 | a | 49.27 | 58.20 | a | 70.83 | 75.84 | 73.42 | 69.73 | ----- | z | 32.15 | d | ----- | z | 50.69 | b | |||||||
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.22 | d | 65.50 | 55.73 | a | 35.69 | a | 20.32 | 49.89 | g | ||
1969 | 15.90 | 25.38 | b | 33.69 | b | 52.74 | c | 64.70 | a | 63.81 | c | 76.74 | d | 80.17 | b | 65.72 | a | 46.97 | a | 37.70 | g | 24.86 | b | 50.06 | a | |
1970 | 13.66 | b | 22.58 | b | 33.00 | 47.27 | 59.81 | d | 74.80 | 81.79 | b | 78.00 | 65.30 | 53.63 | a | 33.33 | 21.16 | 48.69 | ||||||||
1971 | 9.26 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.00 | c | 57.24 | b | 34.83 | 23.74 | 38.21 | g | |||
1972 | 13.83 | a | 18.48 | 31.65 | 46.70 | 70.93 | a | 75.50 | 75.13 | a | 75.45 | 64.79 | a | 50.32 | 32.93 | 16.10 | a | 47.65 | ||||||||
1973 | 24.26 | 26.48 | a | 44.87 | 51.53 | 63.29 | 74.27 | 77.32 | 77.65 | 65.27 | 58.87 | 35.17 | 21.35 | 51.69 | ||||||||||||
1974 | 16.93 | a | 25.82 | 32.55 | 52.73 | 59.55 | 73.70 | 81.90 | a | 72.81 | 62.47 | 56.23 | a | 37.93 | 29.30 | a | 50.16 | |||||||||
1975 | 20.93 | b | 24.85 | a | 31.16 | 44.90 | a | 69.87 | 71.38 | a | 81.95 | i | 75.70 | d | 64.23 | 58.90 | 41.80 | 21.74 | 47.77 | a | ||||||
1976 | 17.42 | 33.45 | 34.74 | 59.53 | 69.35 | 78.80 | 81.26 | 81.06 | 72.50 | 49.87 | 31.57 | 15.52 | 52.09 | |||||||||||||
1977 | 9.65 | 28.07 | 43.57 | a | 59.97 | 76.61 | 75.45 | a | 81.00 | 71.35 | 64.53 | 55.94 | 36.70 | 19.06 | 51.82 | |||||||||||
1978 | 14.94 | 21.64 | 37.84 | 51.83 | 71.16 | 75.52 | a | 76.52 | 76.10 | 69.03 | 56.45 | 36.48 | a | 19.87 | a | 50.61 | ||||||||||
1979 | 12.04 | d | 17.11 | a | 36.04 | g | 46.68 | e | 61.61 | c | 73.25 | f | 79.63 | a | 73.15 | e | 68.30 | 50.18 | c | 36.50 | p | ----- | z | 51.09 | d | |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.06 | m | 63.67 | 48.32 | 38.13 | 20.19 | 42.58 | h | ||||
1981 | 23.87 | 27.39 | 42.10 | 52.38 | a | 66.29 | 71.73 | 76.62 | g | 76.45 | 65.17 | 50.23 | 43.86 | a | 22.71 | 49.29 | a | |||||||||
1982 | 7.66 | b | 22.86 | 33.97 | 49.37 | 70.82 | n | 69.32 | b | 76.77 | a | 73.23 | a | 65.62 | a | 54.48 | 33.57 | b | 26.57 | a | 46.67 | a | ||||
1983 | 21.80 | a | 29.31 | b | 36.32 | 48.85 | d | 63.20 | p | 72.80 | 81.72 | b | 81.27 | a | 67.11 | c | 52.00 | b | 35.23 | 10.31 | b | 48.79 | a | |||
1984 | 18.65 | e | 33.66 | 37.47 | n | 56.97 | a | 64.12 | g | 74.16 | e | 78.62 | b | 79.97 | a | 62.21 | a | 55.60 | a | 37.46 | b | 22.21 | b | 51.95 | b | |
1985 | 18.54 | e | 23.25 | 41.43 | a | 55.43 | 67.47 | p | 69.60 | 77.87 | a | 71.35 | 63.41 | a | 54.07 | a | 27.79 | a | 12.52 | 46.84 | a | |||||
1986 | 23.03 | b | 23.37 | a | 41.77 | 55.43 | 71.23 | i | 74.43 | 77.68 | f | 71.17 | h | 62.62 | a | 53.77 | 32.50 | 28.26 | 43.91 | c | ||||||
1987 | 24.52 | 35.07 | 42.35 | 64.97 | 67.11 | m | 79.37 | 79.87 | 75.03 | 68.73 | 48.70 | a | 41.27 | 27.81 | 53.43 | a | ||||||||||
1988 | 16.68 | 20.18 | a | 35.71 | 55.83 | 75.10 | k | 82.39 | b | 85.45 | 77.32 | 66.17 | 49.29 | 35.40 | 23.68 | 49.83 | a | |||||||||
1989 | 26.00 | 16.42 | d | 31.03 | a | 49.80 | 68.57 | a | 73.13 | 83.23 | a | 79.94 | o | 68.67 | 58.26 | 30.90 | 14.00 | 47.27 | a | |||||||
1990 | 29.52 | 29.68 | 40.00 | f | 53.30 | 66.77 | r | 75.30 | 78.07 | a | 79.61 | 68.73 | 53.19 | 41.27 | 22.37 | a | 53.10 | b | ||||||||
1991 | 17.00 | a | 32.39 | 38.71 | 57.10 | 65.00 | p | 76.13 | 76.68 | 81.03 | 63.73 | 49.29 | 30.03 | 25.35 | 49.77 | a | ||||||||||
1992 | 25.29 | 29.79 | 38.33 | g | 47.07 | 68.48 | f | 71.53 | 71.74 | 72.06 | 66.60 | e | 52.77 | 32.43 | 23.67 | a | 49.30 | b | ||||||||
1993 | 22.28 | b | 25.86 | 39.71 | 50.59 | a | 60.91 | t | 69.90 | 74.87 | 76.71 | 60.03 | 51.39 | 33.00 | 23.74 | 48.01 | a | |||||||||
1994 | 8.30 | a | 19.96 | 40.42 | 54.04 | d | 73.25 | k | 75.87 | 76.32 | 74.64 | f | 72.85 | j | 55.92 | f | 41.47 | 30.16 | 43.32 | d | ||||||
1995 | 21.97 | 23.75 | 39.58 | 45.20 | 67.73 | t | 80.77 | 78.35 | 79.38 | b | 66.40 | 49.04 | d | 27.77 | 19.90 | 48.37 | a | |||||||||
1996 | 12.17 | a | 22.43 | a | 29.32 | 44.93 | 61.97 | b | 74.83 | 73.93 | a | 78.52 | 67.20 | 54.10 | 28.67 | 18.26 | 47.19 | |||||||||
1997 | 16.57 | a | 26.93 | 35.57 | c | 49.70 | 58.27 | a | 77.23 | 76.47 | a | 72.55 | 70.32 | b | 54.19 | 33.29 | b | 30.72 | b | 50.15 | ||||||
1998 | 23.53 | a | 38.52 | a | 36.68 | 57.37 | 72.10 | 68.41 | a | 77.03 | 77.45 | b | 71.83 | 54.90 | ----- | z | 26.13 | 54.90 | a | |||||||
1999 | 15.48 | 31.59 | a | 38.26 | 54.24 | a | 66.26 | 71.93 | a | 78.68 | 73.29 | 65.07 | 50.35 | 43.62 | a | 27.26 | 51.34 | |||||||||
2000 | 19.03 | a | 29.43 | a | 43.50 | a | 49.07 | 65.20 | a | 67.10 | a | 75.06 | 74.32 | 63.77 | 55.50 | a | 33.52 | a | 9.66 | b | 48.76 | |||||
2001 | 23.03 | 15.93 | a | 32.69 | b | 49.46 | b | 64.26 | 73.29 | b | 75.90 | 79.60 | p | 64.75 | f | 54.00 | f | 47.76 | e | 30.16 | f | 47.79 | d | |||
2002 | 26.10 | a | 31.60 | c | 28.64 | c | 48.24 | a | 56.96 | c | 75.28 | a | 80.56 | d | 74.09 | h | 69.52 | c | 40.86 | c | 33.47 | ----- | z | 49.12 | b | |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 26.40 | 22.87 | a | 24.63 | j | |
2015 | 16.80 | a | 8.50 | 38.65 | 52.70 | 62.33 | g | 72.19 | c | 77.95 | i | 74.46 | e | 71.30 | c | 56.27 | e | 41.57 | i | 29.33 | a | 46.69 | c | |||
2016 | 17.12 | e | 24.07 | b | 40.28 | b | 50.78 | g | 67.88 | g | 71.00 | c | 76.84 | f | 75.96 | h | 67.73 | h | 55.59 | i | 48.62 | d | 18.54 | e | 36.60 | f |
2017 | 19.00 | g | 29.60 | h | 35.78 | h | 53.55 | s | 60.54 | c | 75.37 | k | 76.25 | o | 73.64 | i | 73.40 | o | 56.32 | l | 31.74 | k | 17.71 | g | 60.54 | k |
2018 | 15.42 | g | 16.40 | m | 36.09 | h | 41.15 | c | 71.69 | o | 74.33 | o | 79.94 | o | 76.42 | l | 68.65 | m | 45.70 | h | 26.32 | h | 27.00 | h | 41.15 | k |
2019 | 9.64 | f | 13.68 | i | 37.25 | k | 49.05 | h | 58.58 | g | 72.94 | m | 80.84 | l | 73.69 | e | 66.67 | l | 49.30 | d | 29.04 | d | 24.43 | h | 50.68 | i |
2020 | 19.42 | e | 25.05 | j | 38.46 | e | 47.10 | a | 63.48 | d | 75.88 | d | 81.58 | g | 76.60 | f | 62.05 | i | 47.24 | j | 41.61 | b | 24.86 | c | 44.40 | e |
2021 | 22.65 | e | 12.44 | a | 45.12 | g | 49.24 | e | 64.00 | i | 79.41 | h | 80.59 | d | 83.62 | g | 71.14 | i | 64.00 | m | 37.30 | c | 25.48 | d | 37.95 | f |
2022 | 11.37 | a | 14.17 | e | 35.50 | k | 40.25 | f | 63.19 | d | 72.61 | g | 77.12 | f | 73.76 | b | 70.10 | j | 52.68 | i | 34.77 | h | 18.43 | c | 36.18 | g |
2023 | 22.68 | f | 24.26 | i | 34.00 | e | 43.84 | k | 67.96 | g | 75.58 | k | 75.46 | g | 78.27 | t | 74.67 | l | 55.21 | l | 38.95 | j | 36.24 | f | 34.00 | k |
2024 | 19.70 | d | 33.50 | g | 39.08 | e | 52.67 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 29.39 | j |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 18.25 | 24.32 | 36.94 | 51.30 | 64.70 | 73.67 | 78.46 | 75.65 | 66.08 | 53.04 | 35.78 | 22.24 | 49.86 | |||||||||||||
S.D. | 5.35 | 6.54 | 4.43 | 4.88 | 4.88 | 3.68 | 3.08 | 3.07 | 3.17 | 3.86 | 5.23 | 5.15 | 1.72 | |||||||||||||
SKEW | -0.14 | -0.13 | -0.25 | 0.48 | 0.53 | -0.13 | 0.15 | 0.38 | -0.18 | -0.76 | 0.49 | -0.56 | -0.17 | |||||||||||||
MAX | 29.52 | 38.52 | 44.87 | 64.97 | 76.61 | 82.39 | 85.45 | 81.27 | 72.50 | 58.90 | 48.62 | 30.72 | 52.09 | |||||||||||||
MIN | 7.66 | 8.50 | 28.26 | 41.15 | 56.96 | 63.81 | 71.74 | 71.35 | 57.43 | 40.86 | 26.40 | 9.66 | 47.19 | |||||||||||||
YRS | 42 | 40 | 37 | 40 | 26 | 38 | 35 | 35 | 40 | 38 | 42 | 42 | 12 |