YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1938 | ----- | z | 41.25 | r | 41.24 | 49.55 | 55.87 | 64.02 | 69.61 | 64.39 | 61.98 | 48.95 | a | 37.70 | 38.47 | 53.18 | b | |||||||||
1939 | 36.74 | 36.34 | 46.44 | 52.05 | 54.66 | 58.18 | 66.05 | 67.76 | 60.62 | 50.03 | 42.27 | 41.19 | 51.03 | |||||||||||||
1940 | 38.47 | 41.78 | 46.15 | 49.88 | 56.39 | 64.08 | 64.68 | 67.31 | 57.55 | 52.35 | 42.32 | 39.37 | 51.69 | |||||||||||||
1941 | 39.60 | b | 42.79 | 47.89 | 48.90 | 54.58 | 58.00 | 66.98 | 63.03 | 54.97 | 48.39 | 45.53 | a | 42.61 | l | 51.88 | a | |||||||||
1942 | 41.59 | o | 39.91 | 43.18 | 47.55 | 51.39 | 60.57 | 65.61 | 65.18 | 58.08 | 49.73 | 42.67 | 39.77 | 51.24 | a | |||||||||||
1943 | 35.11 | 41.59 | a | 45.79 | 49.40 | 52.24 | 55.72 | 63.69 | 61.65 | a | 61.79 | a | 49.56 | 42.92 | 37.23 | 49.72 | ||||||||||
1944 | 35.90 | 39.71 | 43.84 | 45.17 | 53.02 | 56.53 | 64.65 | 62.79 | 60.85 | 53.84 | 42.48 | a | 39.56 | 49.86 | ||||||||||||
1945 | 42.06 | 44.04 | 42.90 | 49.92 | 54.65 | k | 61.62 | j | 66.95 | 63.76 | 56.52 | a | 49.77 | 40.87 | 38.10 | 49.49 | b | |||||||||
1946 | 35.03 | 36.16 | 43.89 | 49.78 | 56.02 | a | 57.02 | 64.92 | 65.66 | 56.52 | a | 46.32 | 41.67 | a | 40.73 | 49.48 | ||||||||||
1947 | 35.02 | 43.52 | 47.13 | 51.68 | 57.28 | a | 57.91 | a | 61.23 | 60.55 | 57.90 | 52.50 | 42.53 | 38.53 | 50.48 | |||||||||||
1948 | 37.21 | 37.76 | 41.26 | 42.23 | 51.10 | 61.80 | 63.47 | 61.08 | 57.88 | 49.31 | 40.45 | 33.58 | 48.09 | |||||||||||||
1949 | 27.53 | 35.91 | 43.32 | 51.18 | 54.87 | 60.63 | 63.85 | 61.45 | 59.22 | 47.18 | 45.82 | 36.15 | 48.93 | |||||||||||||
1950 | 32.29 | 38.61 | 41.60 | 47.55 | 52.77 | i | 60.42 | 66.79 | 66.77 | 59.48 | 51.31 | 45.67 | a | 43.37 | 50.35 | a | ||||||||||
1951 | 37.53 | 41.00 | 40.53 | 51.43 | 53.73 | 63.25 | 65.66 | 64.84 | b | 61.60 | 48.82 | 43.53 | 36.21 | 50.68 | ||||||||||||
1952 | 33.77 | 37.29 | 39.82 | 48.85 | 54.55 | 56.93 | 66.94 | 61.95 | 61.45 | 54.61 | 38.22 | 38.61 | 49.42 | |||||||||||||
1953 | 43.69 | 40.95 | 41.13 | a | 47.58 | 49.52 | 54.36 | a | 64.52 | 62.71 | 61.68 | 48.68 | 45.72 | 38.47 | 49.92 | |||||||||||
1954 | 38.92 | 43.09 | 42.69 | 50.85 | 56.97 | 56.28 | 62.02 | a | 61.05 | 56.72 | 49.82 | 44.85 | 35.96 | d | 49.94 | |||||||||||
1955 | 36.08 | a | 37.30 | 41.23 | 41.18 | 53.48 | a | 59.40 | a | 60.79 | e | 65.16 | b | 58.45 | 50.60 | 42.70 | 41.03 | 48.95 | ||||||||
1956 | 38.19 | 34.69 | 42.26 | 50.00 | h | 54.92 | 59.13 | 69.23 | 64.35 | 58.90 | 50.37 | a | 41.10 | 36.65 | 49.98 | a | ||||||||||
1957 | 33.63 | 41.64 | g | 45.77 | 49.66 | a | 55.66 | 62.83 | 64.40 | 61.95 | 62.22 | 49.20 | a | 41.50 | 40.60 | 51.58 | a | |||||||||
1958 | 40.81 | 45.75 | 42.10 | 48.60 | 58.82 | 62.43 | 70.32 | 69.92 | 60.15 | 53.58 | 47.50 | 44.90 | 53.74 | |||||||||||||
1959 | 41.63 | 40.62 | 44.82 | 52.15 | 51.97 | 60.97 | 69.55 | 65.50 | 57.35 | 54.02 | 42.20 | 35.26 | 51.34 | |||||||||||||
1960 | 38.84 | 42.02 | 46.87 | 48.35 | 52.00 | 64.40 | a | 69.23 | 64.98 | 61.55 | 52.44 | 44.28 | 38.50 | 51.95 | ||||||||||||
1961 | 40.73 | 44.46 | 43.34 | 49.60 | 51.98 | 65.38 | 67.39 | 68.58 | 56.93 | 50.92 | 42.77 | 39.29 | 51.78 | |||||||||||||
1962 | 35.35 | 39.82 | 43.47 | a | 51.48 | 52.08 | 60.95 | 67.08 | 63.76 | 62.13 | 51.94 | 46.05 | 40.31 | 51.20 | ||||||||||||
1963 | 34.52 | 48.84 | 43.50 | 45.17 | 55.81 | 60.73 | 62.74 | 64.16 | 63.35 | 53.00 | 44.37 | 39.97 | 51.35 | |||||||||||||
1964 | 37.97 | 40.84 | 42.58 | 47.82 | 52.68 | 59.12 | 66.52 | 65.39 | 59.63 | 55.53 | 41.83 | 41.53 | 50.95 | |||||||||||||
1965 | 38.15 | 42.11 | 46.00 | 50.02 | 54.08 | 60.93 | 67.19 | 65.05 | 59.48 | 55.18 | 45.35 | 37.27 | a | 51.73 | ||||||||||||
1966 | 39.82 | 40.11 | 44.55 | 52.27 | 57.95 | 59.78 | 64.03 | 67.53 | 61.90 | 53.24 | 45.05 | 40.29 | 52.21 | |||||||||||||
1967 | 39.50 | 42.18 | 42.61 | 42.40 | 56.69 | 63.85 | 68.37 | 70.89 | 64.15 | 52.79 | 45.40 | 36.56 | 52.12 | |||||||||||||
1968 | 37.61 | 46.93 | 47.03 | a | 49.30 | 54.11 | 63.27 | 68.50 | 64.19 | 61.45 | 51.82 | 44.25 | 39.10 | 52.30 | ||||||||||||
1969 | 36.52 | 38.23 | 44.79 | 48.27 | 59.95 | 63.22 | 67.05 | 65.37 | ----- | z | ----- | z | ----- | z | ----- | z | 52.92 | d | ||||||||
1970 | ----- | z | ----- | z | ----- | z | 42.56 | v | 55.20 | a | 64.81 | c | 68.15 | a | 63.23 | 57.62 | 50.22 | b | 44.72 | 38.03 | a | 55.25 | d | |||
1971 | 37.48 | 40.98 | a | 41.97 | a | 45.78 | a | 54.50 | 57.95 | a | 66.28 | b | 66.19 | 57.20 | b | 47.92 | 41.72 | 35.93 | a | 49.49 | ||||||
1972 | 36.75 | a | 41.80 | b | 50.04 | f | 44.12 | q | 55.77 | 62.52 | 68.33 | b | 66.02 | b | 56.65 | 49.63 | 43.43 | 34.68 | a | 51.56 | b | |||||
1973 | 37.03 | 42.67 | e | 41.68 | a | 49.12 | 57.02 | a | 62.27 | b | 66.68 | a | 63.52 | c | 59.78 | 48.58 | a | 42.22 | 42.68 | 51.10 | ||||||
1974 | 36.29 | 38.39 | 43.67 | b | 47.55 | i | 52.88 | a | 62.08 | 65.16 | 66.58 | 63.66 | a | 51.56 | 43.32 | 39.31 | 51.17 | a | ||||||||
1975 | 37.77 | 38.46 | 40.37 | a | 40.90 | 53.25 | a | 59.61 | l | 63.19 | 60.76 | 60.10 | a | 48.17 | a | 39.90 | 38.82 | a | 47.43 | a | ||||||
1976 | ----- | z | ----- | z | ----- | z | 42.39 | l | ----- | 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 | 54.05 | u | ----- | z |
2005 | 52.00 | b | 57.23 | 62.20 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.62 | j | |
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 |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.65 | 41.22 | 43.54 | 48.40 | 54.53 | 60.60 | 65.99 | 64.61 | 59.66 | 50.86 | 43.10 | 38.78 | 50.75 | |||||||||||||
S.D. | 3.86 | 4.16 | 2.15 | 3.09 | 2.31 | 2.86 | 2.39 | 2.49 | 2.33 | 2.31 | 2.18 | 2.45 | 1.31 | |||||||||||||
SKEW | 1.00 | 1.61 | 0.31 | -1.07 | 0.16 | -0.29 | -0.25 | 0.42 | 0.01 | 0.23 | -0.37 | 0.19 | 0.03 | |||||||||||||
MAX | 52.00 | 57.23 | 47.89 | 52.27 | 59.95 | 65.38 | 70.32 | 70.89 | 64.15 | 55.53 | 47.50 | 44.90 | 53.74 | |||||||||||||
MIN | 27.53 | 34.69 | 39.82 | 40.90 | 49.52 | 54.36 | 60.79 | 60.55 | 54.97 | 46.32 | 37.70 | 33.58 | 48.09 | |||||||||||||
YRS | 36 | 36 | 36 | 34 | 36 | 36 | 38 | 38 | 37 | 37 | 37 | 36 | 26 |