YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | 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 | 36.75 | s | ----- | z |
2006 | 37.28 | h | 41.42 | h | 43.92 | l | 56.85 | g | 65.53 | b | 72.44 | d | 74.80 | i | 70.38 | c | 60.69 | f | 52.83 | d | 46.20 | e | 35.50 | h | 61.48 | g |
2007 | 29.23 | i | 41.72 | e | 49.72 | f | 50.40 | j | 59.65 | e | 68.92 | f | 73.18 | a | 75.54 | e | 67.44 | e | 55.81 | j | 46.23 | h | 33.93 | h | 63.51 | g |
2008 | 34.46 | g | 40.70 | g | 43.23 | g | 51.52 | g | 60.30 | k | 70.88 | f | 72.08 | 70.35 | e | 64.76 | c | 54.77 | g | 45.96 | e | 35.52 | h | 63.29 | h | |
2009 | 39.57 | h | 41.16 | i | 45.59 | i | 50.90 | j | 62.93 | d | 69.45 | h | 74.68 | c | 72.52 | c | 63.52 | e | 51.38 | g | 45.67 | f | 29.95 | i | 68.41 | h |
2010 | 36.34 | i | 33.58 | i | 42.02 | g | 51.19 | f | 59.27 | i | 72.77 | f | 73.02 | c | 73.12 | f | 68.93 | g | 57.36 | i | 44.52 | i | 39.33 | h | 73.02 | k |
2011 | 34.64 | i | 32.97 | j | 48.62 | g | 53.83 | i | ----- | z | 73.87 | g | 77.31 | d | 75.83 | b | 66.08 | d | 54.44 | e | 44.68 | h | 30.91 | n | 68.42 | h |
2012 | ----- | z | 36.40 | h | 48.72 | h | 54.65 | g | 62.34 | i | 75.28 | g | 75.41 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.41 | k |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | 60.97 | a | 73.28 | 73.13 | 74.05 | 65.43 | 52.90 | 42.43 | 33.74 | 59.49 | d | |||||||
2014 | 38.35 | 40.80 | 46.67 | h | 50.57 | 59.69 | 70.48 | 73.87 | 70.26 | 66.03 | 57.73 | 41.72 | 37.31 | 55.16 | a | |||||||||||
2015 | 36.90 | ----- | z | ----- | z | 51.82 | ----- | z | 71.08 | ----- | z | 73.79 | 70.02 | 56.63 | 43.48 | b | 36.29 | 55.00 | d | |||||||
2016 | 34.55 | 41.93 | 48.15 | 52.60 | 59.37 | 73.42 | 78.06 | 69.81 | 66.43 | 61.11 | 46.15 | 38.37 | 55.83 | |||||||||||||
2017 | 36.21 | 45.21 | 52.32 | 54.12 | 60.42 | 72.13 | 75.03 | 70.92 | 66.30 | 58.52 | 50.62 | 40.37 | 56.85 | |||||||||||||
2018 | 38.27 | 40.11 | 47.35 | 53.68 | s | 67.87 | 76.08 | 74.74 | 72.10 | 67.57 | 53.52 | 43.50 | 36.56 | 56.15 | a | |||||||||||
2019 | 38.68 | a | 39.55 | 44.97 | a | 54.63 | 57.94 | 69.27 | 74.89 | 75.89 | 70.30 | 54.08 | 45.33 | 40.50 | 55.50 | |||||||||||
2020 | 39.73 | 40.86 | a | 48.16 | 54.62 | 65.73 | 73.02 | 75.53 | 75.45 | 64.24 | a | 55.27 | 46.45 | a | 37.08 | 56.34 | ||||||||||
2021 | 36.82 | 36.18 | 44.95 | 51.90 | 59.82 | 72.38 | 71.94 | 72.27 | 69.78 | 55.32 | 49.95 | 42.97 | 55.36 | |||||||||||||
2022 | 37.21 | 34.66 | 45.02 | 55.08 | 64.61 | 71.85 | 76.44 | 71.24 | 69.42 | 53.44 | 40.35 | 38.28 | a | 54.80 | ||||||||||||
2023 | 36.69 | 38.32 | 43.10 | 51.68 | 61.29 | 68.02 | 78.20 | a | 74.77 | 68.45 | 56.16 | 46.35 | 38.92 | 55.16 | ||||||||||||
2024 | 34.77 | 41.78 | 44.26 | 50.25 | n | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.27 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.11 | 40.10 | 46.47 | 53.00 | 61.99 | 71.95 | 74.84 | 72.82 | 67.05 | 55.53 | 45.27 | 38.22 | 55.69 | |||||||||||||
S.D. | 1.59 | 2.91 | 2.82 | 1.63 | 3.05 | 2.09 | 1.95 | 2.22 | 2.17 | 2.46 | 2.98 | 2.48 | 0.71 | |||||||||||||
SKEW | -0.13 | -0.33 | 0.89 | -0.03 | 0.60 | -0.07 | 0.26 | 0.12 | 0.09 | 0.89 | 0.21 | 0.18 | 0.47 | |||||||||||||
MAX | 39.73 | 45.21 | 52.32 | 55.08 | 67.87 | 76.08 | 78.20 | 75.89 | 70.30 | 61.11 | 50.62 | 42.97 | 56.85 | |||||||||||||
MIN | 34.55 | 34.66 | 43.10 | 50.57 | 57.94 | 68.02 | 71.94 | 69.81 | 63.52 | 52.83 | 40.35 | 33.74 | 54.80 | |||||||||||||
YRS | 11 | 11 | 9 | 9 | 13 | 12 | 16 | 16 | 15 | 13 | 13 | 11 | 7 |