YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1940 | ----- | z | ----- | z | ----- | z | ----- | z | 57.36 | c | 64.97 | 68.48 | 67.61 | 62.32 | 49.56 | 31.37 | 29.98 | 53.96 | d | |||||||
1941 | 28.47 | 34.07 | 44.69 | 49.98 | 53.82 | 60.95 | 72.37 | 65.68 | 55.03 | 48.02 | 39.33 | 30.89 | 48.61 | |||||||||||||
1942 | 22.98 | 32.64 | 39.10 | 49.37 | 54.06 | 59.70 | 70.66 | 71.08 | 62.33 | 50.84 | 32.83 | 27.81 | 47.78 | |||||||||||||
1943 | 17.66 | 32.89 | 37.73 | 49.80 | 52.65 | 59.57 | 70.92 | 67.11 | 64.40 | 50.42 | 37.42 | 29.68 | 47.52 | |||||||||||||
1944 | 26.13 | 33.81 | 39.37 | 48.18 | 56.19 | 62.57 | 70.42 | 67.65 | 62.93 | 53.77 | 35.83 | 26.19 | 48.59 | |||||||||||||
1945 | 31.94 | 35.41 | 39.06 | 45.78 | 56.98 | 61.38 | 71.23 | 69.82 | 57.85 | 51.21 | 33.38 | 29.03 | 48.59 | |||||||||||||
1946 | 29.24 | 31.70 | 40.45 | 47.62 | 58.27 | a | 59.38 | 68.66 | 68.77 | 58.47 | 44.73 | 31.95 | 30.90 | 47.51 | ||||||||||||
1947 | 25.37 | 34.62 | 44.10 | 49.85 | 61.24 | 61.05 | 67.89 | 66.15 | 60.87 | 47.92 | 38.35 | 30.73 | a | 49.01 | ||||||||||||
1948 | 24.76 | 27.98 | 36.81 | 42.93 | 52.31 | 65.48 | 65.32 | 65.37 | 57.75 | 45.77 | 35.87 | 18.94 | 44.94 | |||||||||||||
1949 | 7.10 | 23.36 | 38.69 | 48.68 | 59.08 | 61.48 | 67.37 | 67.18 | 60.27 | 45.85 | 40.77 | 30.24 | 45.84 | |||||||||||||
1950 | 6.34 | 25.91 | 36.66 | 42.92 | 52.69 | g | 60.80 | 69.08 | 69.95 | 60.90 | 45.55 | 35.10 | 32.26 | 44.13 | a | |||||||||||
1951 | 24.50 | 28.41 | 34.39 | 48.07 | 54.71 | 64.02 | 70.00 | 68.31 | 60.33 | 46.60 | 35.22 | 23.15 | 46.47 | |||||||||||||
1952 | 17.71 | 29.86 | 38.45 | 48.68 | 56.00 | 60.02 | 69.13 | 67.61 | 62.87 | 53.68 | 31.15 | 30.23 | 47.12 | |||||||||||||
1953 | 34.68 | 37.04 | 40.53 | 45.07 | 52.13 | 56.83 | 68.52 | 66.52 | 59.87 | 50.63 | 38.85 | 34.61 | 48.77 | |||||||||||||
1954 | 23.55 | 31.88 | 36.45 | 44.83 | 55.11 | 57.58 | 65.85 | 64.16 | 58.50 | 45.69 | 41.18 | 28.82 | 46.14 | |||||||||||||
1955 | 28.34 | 31.91 | 32.37 | 41.22 | 50.90 | 62.03 | 65.52 | 66.76 | 58.28 | 47.10 | 27.30 | 19.71 | 44.29 | |||||||||||||
1956 | 22.66 | 20.21 | 34.26 | 49.28 | 58.18 | 58.52 | 70.58 | 68.50 | 59.13 | 45.95 | 33.52 | 29.81 | 45.88 | |||||||||||||
1957 | 13.08 | 29.41 | 38.71 | 49.18 | 60.10 | 62.83 | 65.71 | 64.40 | 62.68 | 46.21 | 36.18 | 33.37 | 46.82 | |||||||||||||
1958 | 31.94 | 40.43 | 38.68 | 46.35 | 61.74 | 67.60 | 73.97 | 72.74 | 58.00 | 49.19 | 35.22 | 31.97 | 50.65 | |||||||||||||
1959 | 29.00 | 30.21 | 39.52 | 47.53 | 51.50 | 61.10 | 68.69 | 65.02 | 55.78 | 48.29 | 34.10 | o | ----- | z | 49.66 | b | ||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 69.35 | 64.42 | 46.33 | b | 38.18 | 27.40 | 49.14 | g | ||||
1999 | 33.15 | 34.89 | 38.81 | 44.58 | 50.52 | 58.66 | b | 65.08 | 68.47 | 57.52 | 45.02 | b | 39.65 | 34.37 | h | 48.76 | a | |||||||||
2000 | 25.54 | d | 30.72 | 39.40 | 48.52 | 53.47 | 61.09 | b | 66.90 | 66.73 | 57.10 | 45.89 | 29.07 | 23.63 | 45.67 | |||||||||||
2001 | 26.74 | 27.71 | 41.15 | 44.98 | 55.40 | 58.18 | 68.50 | a | 70.25 | a | 62.05 | 46.47 | 37.58 | 29.08 | 47.34 | |||||||||||
2002 | 31.71 | 34.45 | 36.81 | 46.37 | 52.55 | 62.97 | 69.74 | 66.52 | b | 58.78 | 46.08 | 36.63 | 33.44 | 48.00 | ||||||||||||
2003 | 32.97 | 36.52 | 42.81 | 45.95 | 53.90 | 64.93 | 71.85 | 69.35 | 62.62 | 51.48 | 32.18 | 27.10 | 49.31 | |||||||||||||
2004 | 27.92 | 34.40 | 46.84 | 52.60 | 57.85 | 66.98 | 74.37 | 73.89 | 60.93 | 52.34 | 39.28 | 36.02 | 51.95 | |||||||||||||
2005 | 28.89 | 36.70 | 46.19 | 50.12 | 59.71 | b | 63.00 | 71.79 | 72.55 | 60.90 | 51.11 | 36.57 | a | 28.58 | 50.51 | |||||||||||
2006 | 35.69 | 35.14 | 42.03 | 49.76 | a | 58.35 | 65.90 | 74.44 | 71.03 | 63.32 | 50.73 | 36.72 | 25.37 | a | 50.71 | |||||||||||
2007 | 26.08 | 36.14 | 44.71 | 49.03 | 58.68 | 63.57 | 75.71 | 68.94 | 61.75 | 47.84 | 36.18 | 30.60 | 49.94 | |||||||||||||
2008 | 24.34 | 38.12 | 39.95 | 44.48 | 59.40 | 63.03 | 71.42 | 69.08 | 61.82 | 49.81 | 40.72 | 24.92 | 48.92 | |||||||||||||
2009 | 31.45 | 34.89 | 38.94 | 48.70 | 57.85 | 67.38 | 74.45 | 72.31 | 63.55 | 47.29 | 39.87 | 24.87 | 50.13 | |||||||||||||
2010 | 35.23 | 40.93 | 43.85 | 48.12 | 53.64 | b | 62.05 | 71.15 | 69.79 | 61.73 | 51.10 | 34.63 | 29.19 | 50.12 | ||||||||||||
2011 | 30.94 | 34.25 | 41.05 | 43.98 | 53.65 | 61.82 | 67.11 | 71.48 | 65.02 | 50.52 | 36.57 | 29.84 | 48.85 | |||||||||||||
2012 | 28.53 | 36.36 | a | 41.44 | 50.37 | 56.66 | 61.28 | 73.31 | 72.87 | 64.20 | 49.90 | 40.95 | 31.94 | 50.65 | ||||||||||||
2013 | 27.81 | 39.50 | 43.44 | 49.43 | 59.16 | 65.60 | 75.90 | 73.81 | 65.90 | a | 48.54 | d | 37.23 | 31.69 | 51.50 | |||||||||||
2014 | 33.56 | 31.38 | 42.26 | 49.55 | 59.05 | 65.10 | 76.21 | b | 73.50 | 63.00 | 54.98 | 37.17 | 35.13 | 51.74 | ||||||||||||
2015 | 34.73 | 43.18 | 48.10 | 49.40 | 62.48 | 72.98 | 75.90 | 72.76 | 59.90 | 54.24 | d | 36.70 | 28.63 | 53.25 | ||||||||||||
2016 | 30.11 | 37.74 | 44.32 | 56.74 | c | 60.00 | 65.35 | 69.77 | 71.82 | 61.02 | 49.60 | 44.30 | 24.50 | 51.27 | ||||||||||||
2017 | 20.23 | 27.46 | 41.00 | 47.80 | 58.27 | 64.77 | 74.00 | 74.82 | 63.23 | 47.66 | 37.60 | f | 29.78 | b | 49.91 | a | ||||||||||
2018 | 35.61 | 36.89 | 41.76 | 48.58 | 63.76 | 63.58 | 73.84 | 71.24 | 60.50 | 49.42 | 39.20 | 33.48 | 51.49 | |||||||||||||
2019 | 33.27 | a | 25.98 | a | 35.29 | 50.60 | 61.47 | 64.57 | 70.34 | 72.21 | 61.08 | 44.13 | 37.66 | b | 31.77 | 49.03 | ||||||||||
2020 | 33.50 | 38.02 | 40.94 | 50.02 | 57.89 | 63.82 | 71.10 | 71.39 | 64.97 | 52.37 | 37.47 | a | 32.77 | 51.19 | ||||||||||||
2021 | 35.63 | 33.30 | 42.48 | 50.13 | 57.27 | 70.32 | 77.08 | 71.11 | 61.27 | 48.40 | 41.17 | 29.60 | 51.48 | |||||||||||||
2022 | 25.24 | 36.25 | 45.06 | 43.35 | 52.52 | 63.18 | 74.84 | 75.89 | 65.52 | 56.23 | 32.43 | b | 20.92 | 49.29 | ||||||||||||
2023 | 33.15 | 34.89 | 39.13 | 46.73 | 63.53 | 67.22 | 74.40 | 73.11 | 62.73 | 51.16 | 37.83 | 35.63 | 51.63 | |||||||||||||
2024 | 28.08 | 38.53 | 43.02 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.54 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 27.46 | 33.47 | 40.46 | 47.85 | 56.80 | 63.00 | 70.88 | 69.67 | 61.16 | 49.03 | 36.52 | 29.19 | 48.96 | |||||||||||||
S.D. | 6.88 | 4.73 | 3.45 | 2.87 | 3.49 | 3.30 | 3.30 | 2.95 | 2.60 | 2.95 | 3.46 | 4.02 | 2.19 | |||||||||||||
SKEW | -1.34 | -0.56 | -0.03 | 0.09 | 0.05 | 0.59 | 0.03 | 0.02 | -0.30 | 0.43 | -0.44 | -0.68 | -0.22 | |||||||||||||
MAX | 35.69 | 43.18 | 48.10 | 56.74 | 63.76 | 72.98 | 77.08 | 75.89 | 65.90 | 56.23 | 44.30 | 36.02 | 53.25 | |||||||||||||
MIN | 6.34 | 20.21 | 32.37 | 41.22 | 50.52 | 56.83 | 65.08 | 64.16 | 55.03 | 44.13 | 27.30 | 18.94 | 44.29 | |||||||||||||
YRS | 45 | 45 | 45 | 44 | 44 | 45 | 45 | 46 | 46 | 46 | 44 | 44 | 40 |