YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | 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 | 48.71 | 58.68 | 51.65 | 70.63 | 83.45 | 88.72 | a | 94.84 | 93.13 | 82.23 | ----- | z | 59.80 | 55.19 | 71.55 | a | ||||||||||
1971 | 49.61 | 50.96 | 62.00 | 66.63 | 78.10 | 92.24 | a | 91.57 | a | 87.06 | 80.03 | 70.78 | m | 58.10 | 48.84 | 69.56 | a | |||||||||
1972 | 48.90 | b | 56.55 | ----- | z | 70.36 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.24 | e | ----- | z | 55.26 | h | |
1973 | ----- | z | 51.46 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 76.80 | u | 60.31 | a | 49.35 | 53.71 | i | ||
1974 | 44.10 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.90 | 47.71 | 49.90 | i | |||
1975 | 49.41 | d | 47.22 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 79.81 | d | 76.36 | q | 58.64 | e | 55.10 | b | 58.04 | g |
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 | 67.92 | g | 57.10 | 58.37 | d | 57.74 | j | |
1981 | 53.48 | 56.46 | 59.48 | 76.23 | 76.84 | 92.60 | 91.68 | 85.84 | 84.30 | ----- | z | ----- | z | ----- | z | 75.21 | c | |||||||||
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 80.65 | d | 91.21 | g | 89.44 | f | 84.03 | 74.10 | j | 55.40 | 48.10 | 67.05 | h | |||
1983 | 47.45 | 49.79 | 54.90 | 60.70 | 71.81 | 84.13 | 95.81 | 97.55 | 87.00 | 78.06 | 60.00 | 35.65 | 68.57 | |||||||||||||
1984 | 43.65 | 52.90 | 54.42 | 62.27 | 77.87 | 88.80 | 93.32 | 93.13 | 82.90 | a | 62.32 | 57.53 | 48.83 | a | 68.16 | |||||||||||
1985 | 43.03 | a | ----- | z | 59.94 | 72.40 | 84.68 | 93.47 | 97.13 | 94.77 | a | 85.71 | f | 71.76 | j | 50.25 | f | 43.77 | 73.65 | d | ||||||
1986 | 59.16 | 56.96 | 71.97 | 75.69 | a | 80.16 | 92.53 | 96.97 | 92.23 | 83.13 | 69.00 | a | 55.03 | 45.42 | 73.19 | |||||||||||
1987 | 47.40 | a | 50.71 | 54.94 | 72.28 | a | 79.94 | 90.17 | 95.16 | 90.93 | a | 82.57 | 70.32 | 55.70 | 44.06 | 69.51 | ||||||||||
1988 | 42.20 | a | 51.76 | 60.96 | h | 71.38 | a | 79.65 | 92.77 | 96.68 | 93.71 | 80.04 | b | 72.10 | 57.67 | 51.42 | 71.76 | a | ||||||||
1989 | 52.45 | 42.00 | b | 69.24 | b | 73.21 | a | 77.52 | 79.00 | a | 88.48 | 87.10 | 79.61 | b | 74.35 | 63.50 | 44.32 | 69.23 | ||||||||
1990 | 49.16 | 47.29 | 56.81 | 69.50 | 74.19 | 92.67 | 88.03 | 87.52 | 84.17 | 71.71 | 64.00 | 43.23 | 69.02 | |||||||||||||
1991 | 40.68 | 59.71 | 60.84 | 69.27 | 80.06 | 87.47 | 88.90 | 87.42 | 79.33 | 73.90 | 51.73 | 47.74 | 68.92 | |||||||||||||
1992 | 50.32 | 55.69 | 64.16 | 73.40 | 76.50 | a | 79.40 | 87.68 | 83.58 | 83.17 | 73.77 | 49.00 | 45.00 | 68.47 | ||||||||||||
1993 | 40.77 | 45.57 | 58.71 | 67.07 | 74.39 | 85.10 | 91.03 | 87.03 | 81.35 | d | 66.93 | c | 54.03 | 51.39 | 66.95 | |||||||||||
1994 | 49.23 | 52.88 | b | 62.48 | 68.66 | a | 76.39 | 93.87 | 93.16 | 90.58 | 83.50 | 71.52 | 56.67 | 54.16 | 71.09 | |||||||||||
1995 | 49.58 | 57.96 | 57.94 | 62.10 | 69.26 | 81.53 | 89.00 | a | 93.87 | 83.10 | 73.94 | 64.14 | a | 51.26 | 69.47 | |||||||||||
1996 | 51.42 | 54.86 | 56.48 | 71.07 | 83.61 | 87.23 | 87.45 | 85.84 | 78.00 | 71.35 | 57.13 | 52.29 | 69.73 | |||||||||||||
1997 | 47.26 | 49.21 | 65.74 | 59.23 | 76.77 | 87.10 | 94.13 | 89.03 | 83.30 | 70.63 | a | 53.30 | 40.74 | 68.04 | ||||||||||||
1998 | 51.32 | 51.82 | 52.90 | 65.27 | 82.97 | 89.07 | 92.55 | 86.52 | 89.50 | 74.74 | d | 61.23 | 49.39 | 70.61 | ||||||||||||
1999 | 52.00 | 61.04 | 56.48 | 66.17 | 73.87 | 84.07 | 90.71 | 87.61 | 78.53 | 71.87 | 67.13 | 53.61 | 70.26 | |||||||||||||
2000 | 52.45 | 62.79 | 57.61 | 71.73 | 81.77 | 84.73 | 92.07 | c | 95.94 | 88.43 | 70.10 | 51.53 | 47.74 | 71.41 | ||||||||||||
2001 | 43.32 | 47.00 | 54.16 | 74.90 | 75.71 | 86.10 | 95.13 | 88.84 | 83.47 | 73.42 | 60.80 | 53.19 | 69.67 | |||||||||||||
2002 | 49.32 | 51.71 | 59.06 | 73.60 | 79.87 | 91.97 | 92.26 | 89.94 | 80.43 | 63.77 | 54.88 | f | 47.10 | 70.82 | a | |||||||||||
2003 | 51.35 | 48.68 | 60.35 | 71.60 | 79.23 | 80.17 | 98.66 | b | 93.84 | 80.23 | 77.65 | 56.87 | 54.06 | 71.06 | ||||||||||||
2004 | 50.13 | 51.00 | 65.90 | 67.77 | 84.74 | 85.93 | 86.03 | 86.71 | 84.00 | 70.71 | 52.07 | 52.81 | 69.82 | |||||||||||||
2005 | 49.58 | 51.04 | 58.90 | 67.80 | 75.52 | 88.21 | a | 94.39 | 88.48 | 87.67 | 72.71 | 63.73 | 49.81 | 70.65 | ||||||||||||
2006 | 57.42 | 53.75 | 59.68 | 77.48 | a | 81.71 | 92.20 | 92.77 | 87.87 | 77.10 | 70.03 | a | 61.70 | 45.03 | 71.40 | |||||||||||
2007 | 33.06 | 44.96 | a | 65.26 | 64.31 | a | 77.23 | 83.97 | 91.71 | 93.55 | 85.47 | 76.13 | 63.03 | a | 44.35 | 68.59 | ||||||||||
2008 | 48.19 | 51.55 | 60.29 | 69.73 | 80.68 | 91.80 | 93.26 | 86.81 | 79.93 | 71.26 | 64.23 | 51.07 | a | 70.73 | ||||||||||||
2009 | 54.74 | 59.25 | 63.03 | 67.43 | 76.29 | 89.00 | a | 90.68 | 90.13 | 79.70 | 62.58 | 63.10 | 46.42 | 70.20 | ||||||||||||
2010 | 51.87 | 43.86 | 58.52 | 70.93 | 76.52 | 91.67 | f | 91.03 | 89.84 | 89.60 | 75.17 | a | 62.00 | 54.06 | 69.40 | a | ||||||||||
2011 | 50.39 | 51.14 | 63.52 | 73.87 | 79.37 | a | 94.47 | 100.48 | b | 95.90 | 84.90 | 73.48 | 60.10 | 42.39 | 72.50 | |||||||||||
2012 | 54.19 | 51.59 | 69.32 | ----- | z | 82.26 | 93.97 | 96.97 | ----- | z | 85.13 | ----- | z | 67.67 | 53.55 | 72.74 | c | |||||||||
2013 | 49.94 | 52.18 | 61.97 | 64.53 | 81.16 | 94.17 | 92.77 | 90.42 | 85.23 | 72.19 | 57.50 | 49.77 | 70.99 | |||||||||||||
2014 | 53.87 | 52.14 | 62.27 | a | 72.04 | b | 78.81 | 88.37 | 91.58 | 87.56 | v | 80.62 | d | 74.68 | 58.90 | a | 51.55 | 69.53 | a | |||||||
2015 | 49.48 | 51.71 | 63.52 | 71.07 | 73.13 | 90.23 | 92.52 | 90.48 | 89.10 | 73.26 | 58.40 | 47.87 | 70.90 | |||||||||||||
2016 | 51.90 | 59.72 | 65.42 | 69.77 | 75.74 | 90.47 | 95.61 | 87.84 | 84.77 | 80.16 | 65.83 | 49.13 | 73.03 | |||||||||||||
2017 | 49.06 | 62.57 | 68.84 | 67.87 | 74.77 | 88.93 | a | 91.74 | 83.32 | 81.86 | a | 71.74 | 64.90 | 51.90 | 71.46 | |||||||||||
2018 | 53.68 | 51.82 | 65.00 | 65.87 | 85.06 | 92.30 | 91.42 | 87.19 | 82.43 | 64.68 | 53.57 | 49.61 | 70.22 | |||||||||||||
2019 | 49.94 | 49.86 | 55.90 | 69.97 | 71.52 | 84.83 | 94.23 | 93.52 | 89.37 | 65.19 | 56.80 | 52.06 | 69.43 | |||||||||||||
2020 | 50.74 | 46.59 | 63.55 | 68.17 | 80.08 | g | 93.87 | 93.45 | 92.74 | 80.13 | 69.55 | 63.80 | 48.55 | 70.10 | a | |||||||||||
2021 | 48.48 | 40.57 | 59.03 | 67.40 | 73.81 | 87.07 | 89.87 | 92.61 | 89.37 | 74.48 | 64.50 | 60.16 | 70.61 | |||||||||||||
2022 | 48.84 | 47.64 | 60.19 | 72.20 | 80.67 | a | 85.83 | 94.16 | 93.80 | k | 83.00 | v | 73.45 | 54.63 | 51.19 | 66.88 | b | |||||||||
2023 | 47.81 | 52.57 | 58.16 | 69.70 | 78.03 | 83.30 | 92.84 | 91.71 | 88.63 | 76.03 | 64.23 | 53.26 | d | 71.36 | ||||||||||||
2024 | 40.77 | 56.83 | 60.97 | 71.04 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.86 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 49.00 | 52.21 | 60.72 | 69.39 | 78.18 | 88.28 | 92.73 | 90.05 | 83.34 | 71.77 | 58.94 | 49.41 | 70.16 | |||||||||||||
S.D. | 4.64 | 5.14 | 4.61 | 4.07 | 3.78 | 4.38 | 3.08 | 3.47 | 3.45 | 4.06 | 4.91 | 4.60 | 1.43 | |||||||||||||
SKEW | -0.91 | 0.06 | 0.32 | -0.43 | -0.11 | -0.43 | 0.13 | 0.16 | 0.34 | -0.62 | -0.44 | -0.37 | 0.07 | |||||||||||||
MAX | 59.16 | 62.79 | 71.97 | 77.48 | 85.06 | 94.47 | 100.48 | 97.55 | 89.60 | 80.16 | 67.67 | 60.16 | 73.19 | |||||||||||||
MIN | 33.06 | 40.57 | 51.65 | 59.23 | 69.26 | 79.00 | 86.03 | 83.32 | 77.10 | 62.32 | 45.24 | 35.65 | 66.95 | |||||||||||||
YRS | 48 | 47 | 44 | 44 | 43 | 44 | 44 | 41 | 44 | 39 | 47 | 48 | 33 |