YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1937 | 27.13 | a | 50.07 | 65.81 | 46.61 | b | 71.90 | a | 77.97 | a | 92.35 | 88.86 | b | 84.45 | a | 70.52 | 57.00 | a | 47.80 | a | 65.04 | |||||
1938 | 44.20 | a | 47.00 | 54.77 | a | 65.93 | 74.62 | e | 86.41 | a | 96.10 | a | 88.23 | a | 84.30 | 64.35 | 44.60 | 43.76 | b | 66.19 | ||||||
1939 | 46.14 | c | 47.29 | 58.27 | a | 70.73 | 79.23 | 78.07 | b | 94.17 | b | 94.13 | 82.48 | a | 73.41 | b | 63.27 | 58.30 | a | 70.46 | ||||||
1940 | 44.93 | a | 54.34 | 66.17 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.15 | 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 | 75.27 | s | 77.04 | d | 54.20 | 49.81 | 60.35 | i | ||
1959 | 48.19 | 48.43 | 57.65 | 68.40 | 71.13 | 84.59 | a | 98.03 | 90.45 | 77.55 | a | 68.45 | 54.90 | 46.17 | a | 67.83 | ||||||||||
1960 | 39.37 | a | 49.07 | 59.16 | 64.97 | a | 71.00 | a | 87.70 | 100.29 | 89.37 | a | 87.55 | a | 70.87 | 54.20 | 44.23 | 68.15 | ||||||||
1961 | 48.58 | 54.89 | a | 58.19 | 65.20 | 72.35 | 91.83 | 97.35 | 99.74 | 80.00 | 68.06 | 51.53 | 43.84 | 69.30 | ||||||||||||
1962 | 42.57 | a | 48.33 | a | 54.53 | a | 71.93 | 68.48 | 82.97 | 92.94 | 90.11 | c | 85.87 | 68.58 | 55.57 | 46.83 | a | 67.39 | ||||||||
1963 | 39.23 | a | 56.54 | 59.35 | 59.87 | 75.65 | 81.97 | 88.87 | 92.10 | 89.37 | 72.19 | 55.87 | 44.03 | 67.92 | ||||||||||||
1964 | 46.90 | 53.17 | 54.45 | 64.40 | 74.06 | 80.60 | 93.48 | 89.29 | 82.03 | 72.29 | 50.80 | 43.45 | 67.08 | |||||||||||||
1965 | 44.81 | 53.78 | a | 59.26 | 67.67 | 73.48 | 83.20 | 92.84 | 89.52 | 77.97 | 76.00 | 55.97 | 45.23 | a | 68.31 | |||||||||||
1966 | 47.07 | a | 49.86 | 62.60 | a | 70.93 | 81.26 | 81.63 | 91.45 | 92.90 | 85.17 | 70.45 | 56.07 | 46.87 | a | 69.69 | ||||||||||
1967 | 49.29 | 54.44 | c | 56.10 | a | 57.33 | 75.71 | 85.90 | 97.58 | 100.29 | 91.60 | 71.55 | 53.63 | 44.71 | 69.84 | |||||||||||
1968 | 47.19 | 55.76 | 64.00 | 65.13 | 76.06 | 85.43 | 97.84 | 86.19 | 83.73 | 69.06 | 52.60 | 45.26 | 69.02 | |||||||||||||
1969 | 39.62 | b | 47.46 | 58.74 | 66.21 | a | 79.84 | 84.57 | 91.77 | 93.16 | 83.57 | 63.10 | 55.50 | 46.68 | 67.52 | |||||||||||
1970 | 45.58 | 54.11 | 56.55 | 59.50 | 77.42 | 88.40 | 95.87 | a | 97.16 | 78.17 | 67.29 | 54.70 | 45.32 | 68.34 | ||||||||||||
1971 | 46.94 | 51.86 | 54.32 | 64.90 | 75.74 | 80.33 | 95.19 | 99.81 | 79.93 | a | 67.19 | 53.13 | 43.00 | 67.70 | ||||||||||||
1972 | 43.55 | 51.41 | 61.42 | 63.17 | a | 79.32 | 86.00 | 94.42 | 94.65 | 79.30 | 67.45 | 51.47 | 38.00 | a | 67.51 | |||||||||||
1973 | 42.97 | 53.50 | 58.94 | 67.43 | 80.77 | a | 86.20 | 96.52 | 91.77 | 82.80 | 69.52 | 50.13 | 51.32 | 69.32 | ||||||||||||
1974 | 42.16 | 52.29 | 59.10 | 64.57 | 71.84 | 91.53 | 93.42 | 93.68 | 89.37 | 73.65 | 55.43 | 47.74 | 69.56 | |||||||||||||
1975 | 47.68 | 50.29 | 54.03 | 59.00 | a | 76.00 | 81.20 | 94.42 | 87.00 | 87.77 | 66.48 | 53.60 | 46.43 | a | 66.99 | |||||||||||
1976 | 47.35 | 51.17 | 55.67 | a | 64.50 | 78.19 | 80.60 | 94.10 | 84.26 | 86.14 | a | 71.74 | 55.83 | 46.39 | 68.00 | |||||||||||
1977 | 38.84 | 56.89 | 56.00 | 73.63 | 67.26 | 92.20 | 94.87 | a | 95.03 | 76.93 | a | 68.03 | 48.63 | 46.42 | 67.89 | |||||||||||
1978 | 45.26 | ----- | z | 62.30 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.78 | 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 | 43.98 | 51.82 | 58.64 | 64.64 | 75.06 | 84.51 | 94.72 | 92.17 | 83.46 | 69.88 | 53.85 | 46.16 | 68.14 | |||||||||||||
S.D. | 4.75 | 3.04 | 3.57 | 5.81 | 3.87 | 4.15 | 2.61 | 4.42 | 4.20 | 3.40 | 3.54 | 3.70 | 1.27 | |||||||||||||
SKEW | -1.93 | -0.04 | 0.62 | -1.24 | -0.21 | 0.33 | -0.00 | 0.32 | 0.12 | 0.17 | -0.13 | 1.23 | -0.31 | |||||||||||||
MAX | 49.29 | 56.89 | 66.17 | 73.63 | 81.26 | 92.20 | 100.29 | 100.29 | 91.60 | 77.04 | 63.27 | 58.30 | 70.46 | |||||||||||||
MIN | 27.13 | 47.00 | 54.03 | 46.61 | 67.26 | 77.97 | 88.87 | 84.26 | 76.93 | 63.10 | 44.60 | 38.00 | 65.04 | |||||||||||||
YRS | 24 | 23 | 24 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 22 |