YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1937 | 14.96 | c | 40.30 | a | 52.87 | a | 35.98 | d | 58.13 | a | 65.55 | b | 78.20 | c | 69.98 | c | 66.60 | d | 55.60 | b | 46.71 | a | 40.48 | c | 52.11 | |
1938 | 36.88 | a | 38.84 | 43.68 | a | 50.91 | b | 56.92 | e | 66.00 | a | 75.22 | a | 67.18 | a | 65.83 | 51.28 | a | 35.29 | b | 34.41 | c | 51.87 | |||
1939 | 36.38 | c | 36.54 | c | 44.53 | a | 52.78 | 60.10 | b | 61.75 | b | 73.28 | b | 71.89 | 64.45 | a | 55.28 | b | 44.87 | 44.97 | a | 53.90 | ||||
1940 | 33.65 | a | 43.27 | a | 50.16 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.36 | i |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 57.68 | s | 56.98 | e | 43.25 | 40.39 | 46.87 | i | ||
1959 | 39.56 | 39.55 | 44.21 | 51.63 | 55.10 | 66.72 | a | 74.95 | 69.40 | 62.07 | a | 53.40 | 40.17 | 34.45 | a | 52.60 | ||||||||||
1960 | 29.05 | a | 38.07 | 45.34 | 50.40 | a | 55.27 | a | 66.62 | 76.85 | 69.15 | a | 65.47 | a | 53.73 | 42.05 | 33.34 | 52.11 | ||||||||
1961 | 37.39 | 44.59 | a | 45.16 | 49.57 | 56.63 | 70.98 | 74.23 | 77.42 | 60.10 | 51.84 | 37.63 | 35.55 | a | 53.42 | |||||||||||
1962 | 30.65 | a | 37.72 | a | 41.97 | a | 54.27 | 54.79 | 63.30 | 70.82 | 70.25 | c | 64.98 | 52.68 | 45.13 | 37.47 | a | 52.00 | ||||||||
1963 | 28.45 | b | 44.69 | a | 45.76 | 48.28 | 59.63 | 65.23 | 69.23 | 71.98 | 70.32 | 55.85 | 45.22 | a | 35.62 | a | 53.35 | |||||||||
1964 | 37.31 | 38.66 | 42.19 | 48.15 | 56.13 | 64.72 | 72.61 | 69.53 | 62.50 | 54.56 | 40.95 | a | 35.27 | 51.88 | ||||||||||||
1965 | 37.89 | 42.67 | a | 42.66 | 52.68 | 56.82 | 65.77 | 73.11 | 71.63 | 58.92 | 57.30 | a | 45.28 | 34.81 | b | 53.29 | ||||||||||
1966 | 38.00 | b | 39.41 | 48.00 | a | 52.95 | 62.02 | 65.33 | 71.65 | 72.58 | 66.67 | 53.87 | 45.83 | 38.87 | a | 54.60 | ||||||||||
1967 | 40.76 | 41.86 | c | 43.52 | a | 45.58 | 58.16 | 67.90 | 75.79 | 77.11 | 70.32 | 54.90 | 43.57 | 34.92 | a | 54.53 | ||||||||||
1968 | 37.47 | 44.88 | 48.89 | 50.17 | 59.77 | 68.30 | 76.10 | 69.48 | 64.85 | 52.66 | 43.47 | 36.81 | 54.40 | |||||||||||||
1969 | 30.14 | b | 37.55 | 43.95 | 51.28 | a | 62.10 | 68.68 | 71.65 | 70.90 | 65.10 | 49.06 | 42.12 | 38.15 | 52.56 | |||||||||||
1970 | 37.00 | 42.62 | 44.35 | 45.97 | 59.31 | 71.00 | 75.03 | a | 74.11 | 60.15 | 51.18 | 44.20 | 36.74 | 53.47 | ||||||||||||
1971 | 37.58 | 39.82 | 42.16 | 49.95 | 59.37 | 63.90 | 74.06 | 77.71 | 60.50 | a | 50.05 | 42.52 | 34.52 | 52.68 | ||||||||||||
1972 | 33.95 | b | 40.21 | 47.74 | 48.21 | b | 61.16 | 67.97 | 73.53 | 73.37 | 61.07 | 51.26 | 42.25 | 27.73 | a | 52.37 | ||||||||||
1973 | 33.19 | 42.23 | 45.61 | 51.00 | 61.67 | a | 67.78 | 74.44 | 71.08 | 64.78 | 53.52 | a | 42.78 | 42.39 | 54.21 | |||||||||||
1974 | 31.77 | 41.66 | 45.82 | 50.82 | 56.76 | 71.02 | 73.44 | 73.00 | 66.07 | 53.95 | 44.52 | a | 37.85 | 53.89 | ||||||||||||
1975 | 38.74 | 39.12 | 41.90 | 46.21 | a | 58.26 | 64.78 | a | 75.77 | 68.40 | 65.27 | 53.71 | 41.78 | 37.45 | a | 52.62 | ||||||||||
1976 | 37.21 | 38.66 | 42.78 | a | 50.08 | 59.52 | 62.77 | 73.61 | 68.55 | 66.53 | a | 52.97 | 45.37 | 34.18 | 52.69 | |||||||||||
1977 | 27.68 | 42.86 | 43.81 | 54.95 | 54.16 | 71.62 | 73.92 | a | 75.60 | 61.19 | a | 52.60 | 38.91 | a | 39.21 | 53.04 | ||||||||||
1978 | 37.40 | ----- | z | 48.62 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.01 | j | |
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 | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2020 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2023 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2024 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 34.29 | 40.69 | 45.24 | 49.63 | 58.26 | 66.71 | 73.98 | 71.83 | 64.26 | 53.40 | 42.78 | 36.76 | 53.07 | |||||||||||||
S.D. | 5.56 | 2.46 | 2.85 | 3.94 | 2.41 | 2.80 | 2.05 | 3.03 | 3.12 | 2.08 | 2.78 | 3.49 | 0.89 | |||||||||||||
SKEW | -1.86 | 0.21 | 0.98 | -1.86 | -0.01 | 0.23 | -0.25 | 0.61 | 0.12 | -0.06 | -1.02 | 0.01 | 0.31 | |||||||||||||
MAX | 40.76 | 44.88 | 52.87 | 54.95 | 62.10 | 71.62 | 78.20 | 77.71 | 70.32 | 57.30 | 46.71 | 44.97 | 54.60 | |||||||||||||
MIN | 14.96 | 36.54 | 41.90 | 35.98 | 54.16 | 61.75 | 69.23 | 67.18 | 58.92 | 49.06 | 35.29 | 27.73 | 51.87 | |||||||||||||
YRS | 24 | 23 | 24 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 22 |