YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.63 | 41.80 | a | 28.93 | 24.81 | 37.54 | h | |||
1940 | 4.80 | a | 16.41 | 21.16 | 34.79 | b | 48.23 | a | 60.00 | 65.84 | ----- | z | 55.63 | 44.97 | 25.62 | a | 19.93 | a | 36.13 | a | ||||||
1941 | 14.81 | 10.54 | d | 22.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 15.78 | i | ||
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.17 | 63.20 | a | 62.35 | 53.07 | 40.84 | 29.13 | 11.00 | d | 45.68 | e | |||||
1943 | 2.67 | d | 11.82 | 18.29 | 36.77 | 48.74 | 65.27 | 66.74 | 64.71 | 51.20 | 40.42 | 26.03 | a | 16.77 | 37.45 | |||||||||||
1944 | 19.19 | 16.14 | 22.17 | a | ----- | z | ----- | z | ----- | z | ----- | z | 63.23 | ----- | z | ----- | z | ----- | z | ----- | z | 30.18 | h | |||
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 | 67.61 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.61 | k | |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.58 | ----- | z | ----- | z | ----- | z | ----- | z | 58.58 | k | |
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 | 6.11 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 6.11 | k | |
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 | 13.04 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 18.45 | 15.74 | j | |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.77 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.77 | k | |
1969 | ----- | z | ----- | z | ----- | z | 41.20 | ----- | z | ----- | z | ----- | z | ----- | z | 54.33 | ----- | z | 27.87 | 18.17 | b | 35.39 | h | |||
1970 | 2.00 | 11.04 | 22.13 | ----- | z | 51.65 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.50 | ----- | z | 23.46 | g | |||||
1971 | 0.13 | 11.25 | 21.77 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.70 | ----- | z | ----- | z | ----- | z | 22.21 | h | ||||
1972 | 3.04 | e | 8.00 | a | 20.29 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 10.44 | i | |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.84 | ----- | z | ----- | z | ----- | z | ----- | z | 60.84 | k | |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.21 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.21 | k |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.57 | 67.26 | 59.77 | ----- | z | ----- | z | ----- | z | ----- | z | 62.20 | i | |||
1978 | -0.81 | 1.14 | ----- | z | ----- | z | 51.33 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 17.22 | i | ||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.90 | ----- | z | 28.90 | k | |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.77 | ----- | z | ----- | z | 32.77 | 15.13 | a | 37.22 | i | ||
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 | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | 32.23 | a | 46.54 | b | 52.90 | a | 61.78 | g | 68.77 | a | 68.58 | 55.33 | 46.84 | 31.33 | 12.87 | 46.15 | c | |||||
2011 | 9.45 | 14.89 | 26.19 | 39.97 | 51.58 | 61.87 | 71.16 | 66.26 | 54.70 | 47.16 | 35.27 | 24.10 | 41.88 | |||||||||||||
2012 | 20.33 | g | 24.07 | a | 43.31 | e | 43.07 | 54.60 | f | 63.36 | e | 71.26 | 62.90 | a | 52.59 | a | 42.42 | 32.37 | 22.77 | 45.81 | b | |||||
2013 | 13.12 | f | 14.96 | 20.73 | e | 35.93 | b | 51.10 | 61.67 | 66.50 | a | 64.10 | b | 58.59 | c | 44.00 | f | 28.86 | i | 9.77 | 42.60 | c | ||||
2014 | 0.36 | f | 2.58 | d | 20.84 | 38.61 | g | 51.03 | 64.23 | d | 64.48 | 65.19 | d | 55.08 | f | 44.65 | e | 24.91 | g | 23.90 | j | 44.72 | e | |||
2015 | 14.00 | f | 1.38 | d | 25.83 | g | 41.96 | d | 53.29 | g | 61.62 | f | 64.00 | h | 62.91 | i | 61.14 | i | 45.95 | j | 32.65 | d | 30.89 | l | 25.33 | i |
2016 | 12.96 | d | 24.50 | q | 32.77 | i | 43.81 | n | 53.50 | i | 64.17 | g | 69.64 | i | 66.05 | j | 58.28 | l | 50.61 | h | 40.15 | j | 20.35 | k | 12.96 | k |
2017 | 19.84 | l | 25.33 | g | 29.19 | 45.76 | i | 51.46 | c | 63.41 | h | 67.81 | 63.10 | 60.45 | a | 49.03 | 31.23 | 19.00 | 46.41 | d | ||||||
2018 | 11.09 | i | 14.82 | 30.06 | 32.23 | 58.97 | 66.96 | b | 68.13 | 66.87 | 59.77 | 42.52 | b | 28.03 | 26.20 | a | 44.96 | a | ||||||||
2019 | 12.84 | 7.57 | 21.97 | 40.90 | 49.45 | 61.93 | b | 69.06 | 63.90 | 60.30 | 42.79 | c | 26.87 | 22.10 | 39.97 | |||||||||||
2020 | 18.20 | a | 15.15 | c | 33.03 | 36.48 | a | 51.65 | 63.04 | c | 69.87 | 65.74 | 54.77 | 40.00 | b | 34.00 | b | 22.19 | 42.01 | |||||||
2021 | 19.03 | 6.92 | c | 33.58 | 41.50 | b | 54.20 | k | 66.65 | g | 67.75 | g | 66.00 | c | 57.62 | f | 50.93 | c | 31.86 | b | 22.82 | c | 34.08 | d | ||
2022 | 3.55 | 9.50 | d | 27.57 | a | 36.30 | 52.68 | c | 63.34 | a | 66.94 | 65.06 | 57.80 | 43.26 | 31.33 | 15.71 | 39.42 | |||||||||
2023 | 20.26 | d | 16.85 | a | 26.84 | 39.22 | c | 53.57 | a | 63.52 | a | 64.55 | 65.68 | 60.62 | a | 47.81 | 32.40 | 30.80 | f | 44.66 | a | |||||
2024 | 20.00 | 27.66 | 31.45 | b | 40.41 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 26.37 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 10.30 | 11.85 | 26.24 | 39.06 | 51.74 | 62.48 | 67.26 | 64.03 | 56.22 | 44.36 | 30.37 | 18.93 | 40.15 | |||||||||||||
S.D. | 7.65 | 6.75 | 6.30 | 3.82 | 2.56 | 2.19 | 2.35 | 2.47 | 3.00 | 3.33 | 2.71 | 4.87 | 1.89 | |||||||||||||
SKEW | -0.06 | 0.43 | 0.99 | 0.09 | 1.44 | 0.36 | 0.06 | -0.50 | 0.17 | 0.48 | -0.16 | -0.38 | -0.34 | |||||||||||||
MAX | 20.26 | 27.66 | 43.31 | 46.54 | 58.97 | 66.96 | 71.26 | 68.58 | 60.62 | 50.93 | 35.27 | 26.20 | 42.01 | |||||||||||||
MIN | -0.81 | 1.14 | 18.29 | 32.23 | 48.23 | 59.57 | 63.20 | 58.58 | 51.20 | 40.00 | 25.62 | 9.77 | 37.45 | |||||||||||||
YRS | 17 | 21 | 20 | 14 | 14 | 14 | 17 | 19 | 16 | 15 | 19 | 17 | 5 |