YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | 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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | 62.61 | 66.20 | 77.10 | 91.20 | 90.90 | 91.97 | 84.27 | 70.74 | 54.53 | 54.03 | 74.36 | b | ||||||||||
1995 | 50.10 | 58.14 | 58.61 | 61.70 | 67.94 | 81.03 | 89.42 | 93.26 | 80.47 | 71.65 | 61.83 | 49.87 | 68.67 | |||||||||||||
1996 | 48.45 | 52.31 | 56.93 | a | 70.33 | 78.90 | 85.90 | 88.06 | 86.39 | 78.20 | 73.39 | 54.47 | 50.00 | 68.61 | ||||||||||||
1997 | 43.68 | 48.43 | 63.94 | 61.47 | 75.45 | 85.20 | 92.26 | 86.00 | 82.07 | 65.42 | 49.73 | 36.94 | 65.88 | |||||||||||||
1998 | 44.48 | 51.43 | 54.00 | 65.07 | 79.94 | 85.00 | 89.97 | 86.61 | 86.37 | 71.87 | 58.90 | 47.17 | a | 68.40 | ||||||||||||
1999 | 51.71 | 61.36 | 61.03 | 64.59 | a | 72.68 | 83.43 | 90.29 | 89.39 | 77.57 | 71.39 | 65.80 | 51.19 | 70.04 | ||||||||||||
2000 | 51.06 | 58.24 | 59.35 | 71.33 | 80.10 | 85.70 | 92.77 | 93.47 | a | 83.93 | 69.23 | 49.63 | 43.84 | 69.89 | ||||||||||||
2001 | 43.48 | 44.43 | 55.32 | 71.57 | 74.97 | 87.20 | 93.19 | 90.42 | 83.23 | 71.16 | 60.50 | 48.94 | 68.70 | |||||||||||||
2002 | 46.77 | 50.32 | 57.68 | 72.07 | 78.45 | 91.67 | 94.29 | 90.58 | 82.27 | 63.61 | 56.48 | a | 47.32 | 69.29 | ||||||||||||
2003 | 51.19 | 44.04 | 60.03 | 70.47 | 77.77 | 81.33 | 97.87 | 93.16 | 80.13 | 75.48 | 53.20 | 52.06 | 69.73 | |||||||||||||
2004 | 47.81 | 48.10 | 66.35 | 66.87 | 81.13 | 83.40 | 87.16 | 84.71 | 82.20 | 70.52 | 50.93 | 51.00 | 68.35 | |||||||||||||
2005 | 45.03 | 51.96 | 57.87 | a | 67.07 | a | 76.52 | 87.77 | 95.23 | 89.23 | 85.83 | 70.65 | 61.73 | 46.97 | 69.65 | |||||||||||
2006 | 53.29 | 52.89 | 59.68 | 74.30 | 80.71 | 90.53 | 91.68 | 86.48 | 74.80 | 68.53 | a | 60.13 | 44.30 | a | 69.78 | |||||||||||
2007 | 28.68 | 34.46 | 64.23 | 63.17 | 75.42 | 84.23 | 90.87 | a | 92.48 | 84.27 | 73.45 | 61.77 | 42.45 | 66.29 | ||||||||||||
2008 | 44.97 | 49.31 | 60.42 | 67.03 | 78.03 | 87.80 | 93.55 | 85.77 | 78.97 | 69.23 | a | 60.00 | 45.61 | 68.39 | ||||||||||||
2009 | 51.74 | 57.89 | 61.55 | 66.50 | 76.55 | 83.70 | 90.29 | 87.61 | 77.33 | 59.48 | 59.28 | a | 39.74 | 67.64 | ||||||||||||
2010 | 47.19 | 42.14 | 56.71 | 69.10 | 74.87 | 88.23 | 90.31 | b | 90.07 | c | 87.30 | 73.84 | 59.80 | 50.90 | 69.21 | |||||||||||
2011 | 43.65 | 47.29 | 62.61 | 71.40 | 75.26 | 88.83 | 95.16 | 95.10 | 82.97 | 73.39 | 59.80 | 36.06 | 69.29 | |||||||||||||
2012 | 46.68 | 50.76 | 68.32 | 72.50 | 80.19 | 94.40 | 96.23 | 93.06 | 82.80 | 67.84 | 65.13 | 49.45 | 72.28 | |||||||||||||
2013 | 47.90 | a | 50.46 | 59.23 | a | 63.53 | 78.87 | 91.87 | 90.81 | 90.43 | a | 85.40 | 69.77 | 57.17 | 48.77 | 69.52 | ||||||||||
2014 | 47.53 | a | 40.89 | 61.30 | a | 68.53 | 79.65 | 89.60 | 90.35 | 88.71 | 83.20 | 72.68 | 53.50 | 45.26 | 68.43 | |||||||||||
2015 | 46.06 | 51.68 | 61.81 | 70.40 | 69.48 | 86.86 | a | 91.45 | 91.83 | b | 88.86 | a | 74.20 | a | 59.90 | 49.00 | 70.13 | |||||||||
2016 | 49.45 | 55.52 | 64.26 | 68.37 | 74.00 | 90.57 | 94.06 | 88.06 | 86.00 | 78.23 | 64.40 | 43.97 | 71.41 | |||||||||||||
2017 | 42.68 | 60.93 | 67.75 | c | 68.17 | 76.29 | 90.33 | 91.29 | 85.00 | 80.57 | 70.97 | 61.43 | 50.90 | 70.53 | ||||||||||||
2018 | 51.43 | a | 49.32 | 65.94 | 66.79 | a | 83.77 | a | 94.10 | 92.06 | 88.81 | 85.07 | 66.90 | 57.33 | 50.87 | a | 71.03 | |||||||||
2019 | 47.42 | 48.25 | 54.65 | 71.23 | 72.13 | 86.37 | 90.65 | 90.74 | 89.93 | 64.71 | 53.83 | 49.61 | 68.29 | |||||||||||||
2020 | 51.03 | 44.70 | f | 65.57 | c | 68.00 | a | 80.84 | 92.70 | 93.13 | 95.35 | 82.40 | 68.71 | 63.03 | 44.35 | 73.19 | a | |||||||||
2021 | 44.61 | 38.36 | 59.06 | 68.61 | b | 74.65 | 88.67 | 93.58 | 92.94 | 87.37 | 73.32 | 62.73 | 57.58 | 70.12 | ||||||||||||
2022 | 46.81 | 49.00 | a | 58.90 | a | 71.70 | 79.00 | 87.80 | 93.39 | 91.20 | a | 87.03 | 72.87 | 55.17 | 40.45 | 69.44 | ||||||||||
2023 | 42.03 | 46.75 | 55.52 | 67.83 | 76.45 | 82.63 | 91.90 | 90.90 | 86.13 | 72.35 | 61.33 | 50.87 | 68.73 | |||||||||||||
2024 | 41.71 | 55.03 | 60.68 | 67.75 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.47 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 46.62 | 49.99 | 60.71 | 68.20 | 76.90 | 87.60 | 92.07 | 89.99 | 83.23 | 70.52 | 58.45 | 47.32 | 69.20 | |||||||||||||
S.D. | 4.67 | 6.38 | 3.82 | 3.27 | 3.50 | 3.64 | 2.35 | 2.99 | 3.61 | 3.81 | 4.44 | 4.89 | 1.36 | |||||||||||||
SKEW | -1.77 | -0.32 | 0.21 | -0.34 | -0.59 | 0.04 | 0.31 | -0.11 | -0.36 | -0.82 | -0.42 | -0.51 | -0.27 | |||||||||||||
MAX | 53.29 | 61.36 | 68.32 | 74.30 | 83.77 | 94.40 | 97.87 | 95.35 | 89.93 | 78.23 | 65.80 | 57.58 | 72.28 | |||||||||||||
MIN | 28.68 | 34.46 | 54.00 | 61.47 | 67.94 | 81.03 | 87.16 | 84.71 | 74.80 | 59.48 | 49.63 | 36.06 | 65.88 | |||||||||||||
YRS | 30 | 29 | 31 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 28 |