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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 54.93 | c | 47.10 | 34.48 | 45.50 | i | ||
2009 | 38.90 | 36.74 | a | 39.52 | 45.27 | 59.10 | 58.70 | c | 72.06 | 68.00 | 65.63 | 49.65 | 43.43 | 33.94 | 50.91 | |||||||||||
2010 | 38.03 | 40.71 | 40.84 | 44.00 | 49.19 | 60.80 | 71.06 | 67.10 | 62.57 | 53.32 | 40.80 | 40.45 | 50.74 | |||||||||||||
2011 | 36.26 | 34.11 | 41.35 | 45.73 | 48.65 | 57.93 | 69.32 | 69.84 | 66.43 | 55.16 | 40.37 | 34.13 | 49.94 | |||||||||||||
2012 | 38.58 | 38.59 | 42.45 | 49.30 | 56.81 | 62.60 | 70.87 | 75.61 | 68.43 | 53.58 | 45.93 | 36.00 | 53.23 | |||||||||||||
2013 | 34.06 | 36.07 | 47.10 | 49.33 | 56.52 | 65.30 | 74.65 | 66.30 | a | 64.17 | 49.26 | 44.07 | 36.58 | 51.95 | ||||||||||||
2014 | 41.52 | 41.75 | 43.45 | 49.17 | 52.58 | 64.00 | 71.33 | d | 68.90 | a | 66.07 | c | 56.42 | 44.60 | 39.23 | 53.25 | ||||||||||
2015 | 40.58 | 45.61 | 48.97 | 48.03 | 53.94 | 67.83 | 67.90 | 71.65 | 66.93 | a | 58.23 | 40.77 | 32.42 | 53.57 | ||||||||||||
2016 | 34.87 | 41.38 | 42.13 | 49.37 | 51.90 | 67.57 | 70.26 | 71.45 | 61.77 | 53.61 | 45.30 | 36.06 | 52.14 | |||||||||||||
2017 | 34.48 | 40.36 | 45.42 | 47.07 | 53.45 | 63.79 | a | 72.71 | 71.74 | 60.37 | 51.45 | 45.48 | i | 38.81 | 52.70 | a | ||||||||||
2018 | 39.42 | 37.82 | 42.81 | 49.77 | 53.74 | 63.80 | 74.84 | 73.61 | 65.33 | 52.23 | 40.80 | 37.19 | 52.61 | |||||||||||||
2019 | 36.16 | 32.75 | 40.77 | 49.40 | 49.45 | 63.83 | 67.87 | 67.39 | 60.77 | 45.26 | 44.43 | 35.68 | 49.48 | |||||||||||||
2020 | 36.58 | 38.79 | a | 38.55 | 45.77 | 54.55 | 62.40 | 67.90 | 71.32 | 66.37 | 53.94 | 42.07 | b | 33.86 | b | 51.01 | ||||||||||
2021 | 34.87 | 36.89 | 38.97 | 48.10 | 54.94 | 67.97 | 74.84 | 70.42 | 65.03 | 48.87 | 46.67 | 35.00 | 51.88 | |||||||||||||
2022 | 36.60 | a | 38.32 | 44.85 | d | 48.52 | c | 55.58 | 66.47 | 72.94 | 70.65 | 67.53 | ----- | z | 39.58 | f | 36.13 | 53.76 | b | |||||||
2023 | 36.10 | a | 35.82 | k | 40.84 | 48.07 | 52.74 | 59.07 | 72.87 | 66.74 | 63.53 | 54.04 | c | 42.57 | 39.87 | a | 52.40 | a | ||||||||
2024 | 39.23 | 40.34 | 40.94 | 47.79 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.17 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.27 | 38.68 | 42.43 | 47.79 | 53.54 | 63.47 | 71.43 | 70.05 | 64.73 | 52.66 | 43.49 | 36.24 | 51.73 | |||||||||||||
S.D. | 2.26 | 3.22 | 2.91 | 1.81 | 2.95 | 3.28 | 2.45 | 2.67 | 2.46 | 3.31 | 2.31 | 2.34 | 1.33 | |||||||||||||
SKEW | 0.31 | 0.14 | 0.78 | -0.78 | -0.08 | -0.23 | -0.11 | 0.34 | -0.43 | -0.55 | 0.05 | 0.37 | -0.20 | |||||||||||||
MAX | 41.52 | 45.61 | 48.97 | 49.77 | 59.10 | 67.97 | 74.84 | 75.61 | 68.43 | 58.23 | 47.10 | 40.45 | 53.57 | |||||||||||||
MIN | 34.06 | 32.75 | 38.55 | 44.00 | 48.65 | 57.93 | 67.87 | 66.30 | 60.37 | 45.26 | 40.37 | 32.42 | 49.48 | |||||||||||||
YRS | 16 | 15 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 16 | 12 |