YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | 35.29 | 45.34 | b | 49.97 | 67.94 | 80.96 | d | 81.26 | 84.68 | 69.73 | 61.61 | 40.57 | 23.29 | 58.24 | a | |||||||||
1962 | 18.26 | 21.04 | 35.45 | 52.03 | a | 72.03 | a | 76.87 | 78.26 | 80.06 | 68.83 | 62.19 | 43.67 | 28.52 | 53.10 | |||||||||||
1963 | 12.13 | 25.86 | n | 44.48 | 59.45 | a | 65.87 | a | 81.67 | 85.23 | 80.32 | 73.57 | 69.55 | i | 44.91 | g | 16.71 | 57.71 | c | |||||||
1964 | 28.58 | 32.69 | 34.73 | a | 57.60 | 73.58 | 80.66 | a | 88.19 | 78.61 | 69.87 | 59.67 | a | 41.60 | 19.65 | 55.45 | ||||||||||
1965 | 17.87 | 22.19 | b | 27.48 | 50.00 | 68.48 | 77.25 | b | 80.87 | 78.68 | 59.66 | a | 61.42 | 39.63 | 31.13 | a | 51.22 | |||||||||
1966 | 10.97 | 25.64 | 43.84 | 50.00 | 66.23 | 79.69 | a | 86.65 | 77.81 | 73.03 | 59.77 | 37.53 | 25.50 | c | 53.05 | |||||||||||
1967 | 23.94 | 20.96 | 38.19 | 53.43 | 64.87 | 75.72 | a | 80.52 | 79.97 | 73.60 | 58.39 | 39.33 | 29.00 | 53.16 | ||||||||||||
1968 | 21.60 | a | 24.21 | 50.74 | 60.86 | a | 65.13 | 77.40 | 81.80 | a | 80.65 | 71.17 | 61.00 | 40.10 | 22.26 | 54.74 | ||||||||||
1969 | 16.10 | a | 27.29 | 33.23 | 58.53 | 71.45 | 70.90 | 81.77 | 85.68 | 72.10 | 57.91 | i | 40.93 | 27.10 | 53.19 | a | ||||||||||
1970 | 13.81 | 27.07 | 33.84 | 54.03 | 68.61 | 80.40 | 85.90 | 81.55 | 71.33 | 57.55 | 36.90 | 24.29 | 52.94 | |||||||||||||
1971 | 13.94 | 26.41 | a | 36.23 | 58.53 | 67.74 | 81.23 | 78.19 | 80.61 | 72.37 | 60.97 | 38.90 | 24.58 | 53.31 | ||||||||||||
1972 | 14.90 | 20.00 | 34.87 | 51.37 | 72.74 | 78.30 | 79.71 | 79.29 | 68.10 | 54.77 | 36.87 | 19.94 | 50.90 | |||||||||||||
1973 | 24.94 | 29.29 | 46.35 | 54.63 | 66.87 | 79.77 | 81.83 | a | 81.74 | 68.20 | 64.97 | 41.28 | a | 25.00 | a | 55.41 | ||||||||||
1974 | 20.13 | 27.61 | 36.19 | 57.79 | b | 64.48 | 77.50 | 87.00 | 76.87 | 69.20 | 61.45 | 40.60 | 30.13 | 54.08 | ||||||||||||
1975 | 22.58 | 24.07 | 31.87 | 46.07 | 73.35 | 77.57 | 86.94 | 81.71 | 68.10 | 63.19 | 44.63 | 24.77 | a | 53.74 | ||||||||||||
1976 | 19.29 | 35.03 | 39.55 | 62.86 | a | 72.27 | a | 82.90 | 87.68 | 85.94 | 75.93 | 55.87 | 35.57 | 21.90 | 56.23 | |||||||||||
1977 | 10.97 | a | 31.00 | 44.61 | 65.47 | 79.26 | 79.86 | a | 85.45 | 77.06 | 69.07 | 58.67 | a | 43.08 | f | ----- | z | 60.14 | b | |||||||
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.91 | h | 76.17 | 60.90 | 40.11 | b | 22.52 | 49.92 | h | |||
1979 | 9.71 | 20.07 | 35.77 | 51.50 | 65.97 | 78.93 | 82.84 | 77.97 | 74.63 | 57.30 | a | 39.63 | 32.77 | 52.26 | ||||||||||||
1980 | 22.63 | a | 25.48 | 36.42 | 62.83 | 76.71 | 79.30 | 86.77 | 81.77 | 70.70 | 55.81 | 44.80 | 27.16 | 55.87 | ||||||||||||
1981 | 28.73 | a | 33.39 | 48.71 | 60.30 | 70.23 | 77.87 | 83.52 | 79.61 | 70.77 | 55.29 | 46.97 | 24.97 | 56.70 | ||||||||||||
1982 | 11.68 | c | 23.50 | b | 34.27 | a | 53.45 | a | 72.24 | b | 75.57 | b | 85.79 | b | 82.94 | 68.76 | a | 59.13 | 36.40 | 31.58 | 52.94 | |||||
1983 | 26.48 | 32.39 | 39.87 | 53.14 | a | 67.59 | b | 78.43 | 87.48 | 87.07 | a | 72.83 | 57.03 | 39.75 | b | 12.39 | 54.54 | |||||||||
1984 | 21.45 | 35.82 | a | 34.27 | a | 57.28 | a | 68.58 | 78.79 | a | 83.68 | 84.38 | b | 68.44 | c | 59.71 | 41.17 | 25.90 | 54.96 | |||||||
1985 | 22.00 | b | 26.21 | 44.67 | d | 64.10 | a | 75.13 | 75.83 | 84.35 | 75.61 | 68.90 | 58.55 | 32.43 | b | 17.19 | 53.75 | |||||||||
1986 | 26.07 | a | 24.79 | 42.77 | 62.37 | c | 72.07 | b | 81.41 | a | 83.41 | b | 78.80 | a | 69.13 | 59.78 | d | 36.52 | a | 30.13 | 55.60 | |||||
1987 | 29.60 | a | ----- | z | 46.77 | 70.07 | 76.60 | a | 85.50 | 88.42 | 81.03 | 75.43 | 53.72 | b | 44.79 | a | 30.87 | 62.07 | a | |||||||
1988 | 20.48 | d | 24.72 | 44.13 | 64.27 | 82.93 | c | 90.68 | b | 93.77 | 86.10 | a | 74.28 | a | 57.13 | a | 39.80 | 30.55 | b | 59.07 | ||||||
1989 | 31.58 | 22.00 | b | 37.90 | a | 59.04 | d | 74.03 | a | 81.71 | b | 90.03 | a | 83.68 | 72.13 | 64.23 | 38.41 | a | 19.30 | a | 56.17 | |||||
1990 | 35.06 | 35.70 | a | 45.42 | 61.48 | a | 70.26 | 81.97 | 82.13 | 81.97 | a | 76.03 | 60.68 | 47.13 | 25.48 | b | 58.61 | |||||||||
1991 | 24.86 | b | 38.04 | 45.39 | 63.31 | a | 72.90 | 83.23 | 82.94 | 81.74 | 69.50 | 60.16 | 33.07 | 30.26 | 57.12 | |||||||||||
1992 | 30.32 | 36.41 | 43.45 | 53.03 | 76.07 | a | 77.90 | 76.97 | 76.87 | 71.33 | c | 60.00 | d | 33.87 | 26.47 | a | 55.22 | |||||||||
1993 | 24.10 | a | 27.93 | a | 41.03 | a | 56.86 | a | 69.82 | c | 74.97 | 79.07 | b | 81.72 | b | 66.72 | a | 56.38 | b | 36.97 | a | 27.73 | a | 53.61 | ||
1994 | 11.83 | b | 23.93 | a | 44.23 | a | 57.04 | d | 75.35 | 82.21 | b | 81.48 | 80.03 | a | 75.29 | b | 61.27 | a | 44.93 | 31.66 | b | 55.77 | ||||
1995 | 23.93 | a | 27.81 | b | 42.30 | a | 51.45 | a | 66.71 | 80.17 | 82.70 | a | 82.17 | a | 70.33 | 56.30 | a | 32.69 | a | 23.84 | 53.37 | |||||
1996 | 17.45 | b | 26.78 | b | 33.21 | c | 50.79 | a | 65.71 | 77.63 | 79.23 | 81.07 | a | 70.41 | c | 59.83 | a | 31.48 | a | 19.16 | 51.06 | |||||
1997 | 17.10 | 28.36 | 37.73 | a | 54.37 | 65.73 | a | 82.41 | a | 79.10 | 76.83 | a | 72.67 | 61.33 | a | 34.59 | c | 32.61 | c | 53.57 | ||||||
1998 | 24.63 | a | 37.89 | 39.42 | 62.63 | 78.10 | a | 73.97 | 81.52 | b | 82.06 | 78.64 | b | 60.52 | 43.47 | 33.17 | a | 58.00 | ||||||||
1999 | 19.71 | c | 35.43 | 43.90 | 57.86 | a | 70.13 | a | 76.26 | c | 84.52 | 79.34 | b | 71.76 | a | 60.32 | 50.80 | 33.12 | f | 59.09 | a | |||||
2000 | 24.23 | a | 34.28 | 49.50 | c | 56.24 | a | 71.43 | a | 74.41 | a | 81.21 | b | 82.03 | b | 73.24 | e | 62.79 | b | 36.80 | 14.57 | c | 55.06 | |||
2001 | 28.48 | b | 20.96 | a | 36.93 | a | 56.77 | 70.63 | a | 77.50 | d | 84.48 | f | 86.81 | 71.00 | 58.45 | b | 53.20 | 33.83 | a | 54.05 | a | ||||
2002 | 32.68 | c | 37.24 | c | 30.83 | a | 55.31 | a | 65.61 | c | 79.45 | a | 84.43 | c | 78.19 | 74.46 | b | 47.77 | a | 39.10 | 35.19 | e | 55.02 | |||
2003 | 23.48 | 24.43 | 41.50 | a | 58.07 | 68.03 | a | 75.67 | 81.07 | c | 84.00 | a | ----- | z | 62.50 | a | 38.79 | b | 30.38 | b | 53.45 | a | ||||
2004 | 17.19 | 29.81 | b | 44.14 | b | 63.57 | b | 66.13 | 72.97 | a | 79.42 | e | 74.13 | a | 76.00 | 59.00 | 44.93 | 29.76 | b | 54.76 | ||||||
2005 | 20.43 | c | 33.04 | b | 41.36 | f | 63.61 | b | 64.77 | a | 80.33 | 84.48 | d | 81.40 | a | 76.52 | a | 60.97 | a | 44.86 | a | 25.57 | a | 57.82 | a | |
2006 | 34.00 | b | 27.16 | c | 40.94 | 63.70 | 70.07 | a | 79.00 | b | 88.42 | 80.79 | b | 68.21 | b | 55.87 | a | 44.50 | 34.58 | 57.27 | ||||||
2007 | 26.03 | 21.79 | 47.14 | b | 57.76 | a | 75.45 | 81.10 | 85.73 | a | 81.65 | 73.90 | 62.34 | b | 41.27 | 21.87 | 56.34 | |||||||||
2008 | 23.16 | 24.34 | 36.13 | 53.00 | 65.97 | 75.60 | 83.11 | c | 81.25 | c | 72.14 | a | 59.26 | 40.96 | b | 21.47 | a | 53.03 | ||||||||
2009 | 17.39 | 29.31 | b | 40.00 | 56.53 | 72.07 | a | 76.45 | a | 78.43 | a | 77.97 | a | 76.13 | 49.77 | 49.90 | 22.55 | 53.87 | ||||||||
2010 | 20.76 | b | 27.64 | 50.59 | b | 65.83 | 72.66 | b | 77.17 | ----- | z | ----- | z | ----- | z | 62.97 | 41.93 | a | 21.32 | c | 48.98 | c | ||||
2011 | 18.83 | b | 27.61 | 35.77 | a | 55.17 | 67.29 | 75.30 | c | 84.68 | 80.42 | 71.00 | 64.23 | 46.90 | 34.55 | 55.14 | ||||||||||
2012 | 31.30 | a | 34.46 | a | 55.03 | b | 59.27 | 71.90 | a | 79.70 | 85.27 | a | 80.59 | b | 76.13 | 55.26 | 42.70 | 27.07 | a | 58.22 | ||||||
2013 | 24.62 | b | 24.37 | a | 33.26 | 46.03 | 67.13 | 74.97 | 80.45 | 83.45 | 75.97 | 55.87 | a | 39.27 | 17.73 | a | 51.93 | |||||||||
2014 | 16.42 | 16.96 | 33.30 | a | 50.27 | 67.61 | 76.53 | 78.06 | 78.42 | 70.30 | 57.74 | 31.77 | 28.45 | 50.49 | ||||||||||||
2015 | 24.71 | 18.32 | 44.48 | 59.57 | 67.52 | 76.83 | 80.74 | 77.35 | 74.90 | 60.13 | 48.20 | 33.61 | 55.53 | |||||||||||||
2016 | 23.87 | 31.03 | 47.94 | 55.33 | 70.39 | 78.60 | 80.52 | 79.68 | 70.93 | 60.19 | 50.27 | 25.97 | 56.23 | |||||||||||||
2017 | 25.26 | 37.64 | 41.26 | 57.97 | 67.10 | 78.67 | 81.52 | 74.74 | 74.20 | 58.68 | 39.20 | 24.10 | 55.03 | |||||||||||||
2018 | 23.16 | 24.18 | 38.35 | 46.43 | 78.10 | 78.37 | 80.81 | 79.19 | 71.10 | 50.94 | 31.80 | 29.35 | 52.65 | |||||||||||||
2019 | 19.23 | 18.61 | 35.71 | 54.27 | 64.52 | 77.40 | 81.52 | 77.03 | 71.73 | 54.13 | 34.73 | 27.16 | 51.34 | |||||||||||||
2020 | 23.87 | 28.34 | 42.26 | 55.77 | 66.87 | 81.63 | 84.00 | 79.81 | 69.13 | 50.16 | 46.10 | 31.26 | 54.93 | |||||||||||||
2021 | 26.74 | 17.82 | 48.45 | 56.10 | 70.39 | 85.13 | 85.10 | 83.42 | 76.23 | 62.06 | 42.97 | 30.68 | 57.09 | |||||||||||||
2022 | 18.52 | 21.89 | 37.10 | 47.97 | 69.52 | 80.47 | 81.61 | 79.32 | 72.90 | 60.26 | 40.63 | 23.03 | 52.77 | |||||||||||||
2023 | 24.29 | 28.96 | 33.90 | 50.90 | 74.52 | 82.57 | 83.13 | 81.90 | 75.87 | 58.26 | 45.17 | 38.16 | 56.47 | |||||||||||||
2024 | 24.23 | 40.17 | 44.77 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.39 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.97 | 27.82 | 40.45 | 56.70 | 70.31 | 78.86 | 83.18 | 80.62 | 71.98 | 58.79 | 40.72 | 26.42 | 54.59 | |||||||||||||
S.D. | 5.94 | 5.87 | 5.78 | 5.32 | 4.18 | 3.26 | 3.35 | 2.86 | 3.23 | 3.56 | 5.03 | 5.48 | 2.05 | |||||||||||||
SKEW | -0.05 | 0.22 | 0.15 | 0.06 | 0.70 | 0.63 | 0.56 | 0.16 | -0.67 | -0.98 | 0.19 | -0.29 | 0.06 | |||||||||||||
MAX | 35.06 | 40.17 | 55.03 | 70.07 | 82.93 | 90.68 | 93.77 | 87.07 | 78.64 | 64.97 | 53.20 | 38.16 | 59.07 | |||||||||||||
MIN | 9.71 | 16.96 | 27.48 | 46.03 | 64.48 | 70.90 | 76.97 | 74.13 | 59.66 | 47.77 | 31.48 | 12.39 | 50.49 | |||||||||||||
YRS | 62 | 61 | 62 | 62 | 62 | 62 | 60 | 61 | 61 | 61 | 61 | 61 | 52 |