YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | 2.36 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.36 | k | |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.60 | a | 22.03 | 14.13 | 21.59 | i | ||
1940 | 5.71 | 8.14 | 16.61 | 22.83 | 33.00 | 43.37 | 48.32 | 47.20 | a | 39.59 | a | 27.45 | 14.04 | f | 8.90 | 27.37 | a | |||||||||
1941 | 6.29 | 10.21 | 13.19 | 18.67 | 34.00 | 37.70 | 45.06 | 45.61 | 33.15 | c | 28.23 | 19.60 | 11.10 | 25.23 | ||||||||||||
1942 | 2.48 | -2.14 | 6.61 | 25.40 | 29.10 | 39.13 | 47.50 | a | 45.39 | 36.57 | 31.90 | 18.00 | 11.23 | 24.26 | ||||||||||||
1943 | 4.47 | a | 6.71 | 9.42 | 29.50 | 32.19 | 38.89 | k | 46.50 | a | 46.10 | 39.83 | 29.10 | b | 19.90 | a | 10.07 | a | 24.89 | a | ||||||
1944 | 0.90 | 2.86 | a | 8.69 | b | 18.55 | h | 33.14 | b | 36.28 | a | 44.13 | 42.70 | d | 36.77 | d | 30.86 | b | 16.73 | d | 8.48 | j | 25.31 | b | ||
1945 | 9.55 | i | 2.89 | j | 7.60 | k | 18.60 | o | 30.87 | a | 34.73 | 45.87 | 46.07 | b | 33.82 | b | 28.21 | g | ----- | z | 7.54 | c | 33.15 | f | ||
1946 | 2.52 | 6.43 | 16.29 | 28.90 | a | 30.06 | 39.83 | 47.81 | 46.26 | 38.52 | e | 25.00 | a | 12.82 | b | 11.62 | e | 25.50 | ||||||||
1947 | 0.59 | b | 11.79 | 15.88 | w | 24.00 | b | 35.20 | a | 37.07 | 45.52 | 44.64 | c | 37.30 | g | 30.90 | 13.25 | b | 9.27 | p | 26.99 | c | ||||
1948 | 3.32 | f | 1.95 | i | 4.10 | a | 23.39 | g | 31.68 | 39.90 | a | 44.97 | a | 44.30 | a | 39.36 | b | 27.96 | g | 11.00 | f | 1.53 | l | 34.05 | f | |
1949 | ----- | z | -19.25 | x | ----- | z | 21.35 | m | 31.17 | h | 32.60 | t | 45.14 | b | 45.81 | 38.39 | b | 26.39 | 26.86 | b | 7.28 | b | 31.64 | f | ||
1950 | ----- | z | ----- | z | ----- | z | 23.53 | 28.33 | d | 35.37 | 42.90 | 41.81 | 36.73 | d | 30.60 | a | 22.03 | 12.17 | y | 32.66 | d | |||||
1951 | 8.50 | y | ----- | z | ----- | z | 24.00 | d | 33.28 | b | 35.59 | a | 45.90 | a | 43.77 | a | 33.65 | g | 26.42 | ----- | z | ----- | z | 34.82 | f | |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | 32.74 | d | 34.90 | 40.21 | b | 42.52 | 36.80 | e | 23.74 | 9.35 | g | ----- | z | 35.15 | f | |||
1953 | ----- | z | ----- | z | ----- | z | 14.12 | v | 22.17 | a | 35.08 | d | 42.19 | 40.19 | 34.97 | 25.94 | 4.74 | k | ----- | z | 33.42 | f | ||||
1954 | ----- | z | ----- | z | ----- | z | 27.91 | s | 30.71 | 34.70 | 43.13 | 38.39 | 33.87 | 24.00 | c | 18.00 | e | 5.50 | q | 31.83 | e | |||||
1955 | ----- | z | ----- | z | ----- | z | ----- | z | 27.42 | 30.50 | 40.81 | 44.23 | 35.73 | 27.07 | a | 10.60 | t | ----- | z | 34.29 | f | |||||
1956 | ----- | z | ----- | z | ----- | z | 23.80 | o | 32.61 | 39.17 | a | 42.52 | 40.37 | a | 35.10 | 27.29 | j | -4.09 | s | ----- | z | 37.95 | g | |||
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.03 | 43.29 | 42.71 | 31.40 | 24.55 | ----- | z | ----- | z | 35.60 | g | |||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | 34.16 | l | 33.83 | 39.39 | 42.65 | 33.28 | a | 27.29 | 20.67 | x | ----- | z | 35.29 | g | ||||
1959 | ----- | z | ----- | z | ----- | z | ----- | z | 31.59 | d | 43.47 | 47.23 | 45.57 | a | 36.37 | 28.84 | ----- | z | ----- | z | 38.84 | f | ||||
1960 | ----- | z | ----- | z | ----- | z | 18.83 | x | 31.90 | 40.63 | 48.80 | a | 43.58 | 41.28 | a | 28.37 | d | ----- | z | ----- | z | 39.09 | f | |||
1961 | ----- | z | ----- | z | ----- | z | ----- | z | 31.84 | 41.96 | b | 47.42 | 47.58 | 32.21 | b | 25.69 | b | ----- | z | ----- | z | 37.78 | f | |||
1962 | ----- | z | ----- | z | ----- | z | ----- | z | 31.03 | b | 39.30 | 45.34 | b | 43.00 | b | 38.04 | d | 29.23 | e | ----- | z | ----- | z | 37.66 | f | |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | 33.50 | o | 38.18 | b | ----- | z | 45.76 | b | ----- | z | 34.06 | ----- | z | ----- | z | 39.33 | i | |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.45 | 33.20 | 27.03 | a | ----- | z | ----- | z | 33.89 | i | ||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.23 | 43.16 | 29.70 | ----- | z | ----- | z | ----- | z | 38.70 | i | |||
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.35 | 42.55 | 39.53 | 26.65 | ----- | z | ----- | z | 38.52 | h | ||||
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 | 38.38 | a | 44.13 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.38 | k |
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 | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 18.40 | t | 7.23 | 7.23 | k | |
2014 | 13.00 | 12.43 | 16.85 | r | ----- | z | 32.83 | a | 38.80 | 49.52 | 45.06 | 40.83 | 30.97 | 18.60 | 13.71 | 29.58 | b | |||||||||
2015 | 12.90 | 16.75 | 21.45 | 25.23 | 31.87 | 44.80 | 45.13 | 46.10 | 41.17 | 38.96 | d | ----- | z | 6.21 | c | 30.05 | a | |||||||||
2016 | 5.74 | 13.38 | 18.52 | 25.13 | 31.81 | 45.00 | 47.81 | 45.48 | 38.57 | 31.74 | 23.50 | 6.71 | 27.78 | |||||||||||||
2017 | 4.97 | 14.26 | a | 21.00 | a | 23.52 | a | 31.32 | 42.79 | a | 50.29 | c | 47.19 | 39.40 | 26.42 | 24.00 | 17.90 | 28.59 | ||||||||
2018 | 13.00 | 11.71 | 16.03 | a | 24.90 | 34.81 | 42.97 | 50.42 | 47.58 | 40.62 | a | 29.07 | a | 17.10 | 7.29 | 27.96 | ||||||||||
2019 | 5.55 | 3.89 | 13.17 | a | 25.03 | 28.87 | a | 37.60 | 47.81 | 47.74 | 40.03 | 20.19 | 20.13 | 9.77 | a | 24.98 | ||||||||||
2020 | 5.77 | a | 5.69 | 17.71 | 22.30 | 34.10 | a | 40.59 | a | 47.73 | a | 51.19 | 39.07 | a | 31.32 | 20.28 | a | 10.52 | 27.19 | |||||||
2021 | 7.74 | 8.85 | a | 14.10 | 22.63 | 33.61 | 47.70 | 54.10 | a | 49.06 | 43.13 | 31.24 | j | ----- | z | ----- | z | 31.21 | c | |||||||
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.56 | m | 50.23 | 44.87 | 32.16 | 15.23 | 8.39 | 30.17 | g | |||||
2023 | ----- | z | ----- | z | ----- | z | ----- | z | 5.57 | x | 41.90 | j | 51.45 | b | 50.10 | a | 27.41 | a | 3.81 | 8.10 | 10.90 | 25.30 | f | |||
2024 | 8.94 | 8.14 | 5.22 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 7.43 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 6.29 | 8.32 | 13.47 | 24.37 | 31.50 | 38.88 | 45.96 | 44.95 | 37.04 | 27.65 | 18.68 | 10.03 | 26.44 | |||||||||||||
S.D. | 4.00 | 4.90 | 5.55 | 2.59 | 2.62 | 3.86 | 3.25 | 2.87 | 3.85 | 5.51 | 4.49 | 3.04 | 1.62 | |||||||||||||
SKEW | 0.49 | -0.30 | -0.29 | 0.11 | -1.68 | 0.22 | 0.16 | 0.05 | -0.41 | -2.28 | -0.47 | 0.95 | 0.01 | |||||||||||||
MAX | 13.00 | 16.75 | 21.45 | 29.50 | 35.20 | 47.70 | 54.10 | 51.19 | 44.87 | 38.96 | 26.86 | 17.90 | 28.59 | |||||||||||||
MIN | 0.59 | -2.14 | 4.10 | 18.67 | 22.17 | 30.50 | 39.39 | 38.39 | 27.41 | 3.81 | 8.10 | 6.21 | 24.26 | |||||||||||||
YRS | 16 | 17 | 15 | 15 | 28 | 31 | 34 | 37 | 34 | 33 | 18 | 18 | 8 |