YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 32.03 | 36.29 | 42.17 | b | 62.33 | 66.71 | 75.55 | 80.31 | 77.87 | 72.73 | 59.16 | 42.87 | 41.77 | 57.48 | ||||||||||||
1949 | 28.89 | 40.23 | 49.45 | 55.13 | 65.60 | 72.75 | 77.68 | 76.21 | 70.67 | a | 58.26 | 53.08 | 38.44 | 57.20 | ||||||||||||
1950 | 43.15 | 47.00 | 48.73 | 57.62 | 66.34 | 76.47 | 75.53 | 75.40 | 68.08 | 66.21 | 47.60 | 40.87 | 59.42 | |||||||||||||
1951 | 35.34 | 43.11 | 46.18 | 54.70 | 65.87 | 73.75 | 82.45 | 79.82 | 71.17 | 59.60 | 43.57 | 39.90 | 57.95 | |||||||||||||
1952 | 42.52 | 43.26 | 46.18 | 56.50 | 66.40 | 80.37 | 78.65 | 80.18 | 70.05 | 58.40 | 40.60 | 37.38 | a | 58.37 | ||||||||||||
1953 | 45.11 | 39.46 | 52.08 | 55.28 | 63.79 | 81.98 | 80.40 | 77.52 | 72.22 | 60.48 | 48.47 | 35.97 | 59.40 | |||||||||||||
1954 | 41.29 | 48.89 | 46.76 | 62.27 | 64.40 | 78.07 | 82.37 | 78.82 | 74.60 | 60.40 | ----- | z | ----- | z | 63.79 | b | ||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 44.60 | 57.75 | 70.21 | 73.17 | 77.71 | 79.24 | 70.69 | a | 61.42 | 47.87 | 40.39 | 62.30 | b | |||||||||
1963 | 30.22 | a | 40.80 | 49.48 | 60.80 | 68.35 | 75.02 | 81.13 | 77.05 | 72.07 | 64.55 | 49.72 | 34.52 | 58.64 | ||||||||||||
1964 | 37.44 | 31.69 | 45.39 | 56.93 | 68.27 | 77.03 | 81.97 | 78.60 | 70.05 | 61.19 | 46.62 | 39.74 | 57.91 | |||||||||||||
1965 | 42.56 | 37.67 | a | 40.73 | 59.20 | 65.42 | 73.50 | 79.94 | 75.95 | 68.72 | a | 59.23 | 52.95 | 42.63 | 58.21 | |||||||||||
1966 | 30.97 | 36.93 | 51.13 | 57.12 | 67.65 | a | 74.52 | 83.29 | 73.65 | 70.24 | a | 57.52 | 51.23 | 36.26 | 57.54 | |||||||||||
1967 | 41.27 | 41.20 | 54.47 | 61.60 | 65.08 | 74.13 | 77.44 | 73.56 | 68.72 | 60.37 | 47.27 | 33.82 | 58.24 | |||||||||||||
1968 | 39.29 | 40.22 | 47.40 | 54.58 | 63.81 | 76.72 | 77.37 | 76.74 | 69.72 | 61.97 | 45.23 | 39.50 | 57.71 | |||||||||||||
1969 | 45.17 | a | 42.20 | 40.42 | 59.87 | 66.53 | 72.72 | 81.56 | 79.95 | 70.63 | 54.48 | 46.47 | 40.66 | 58.39 | ||||||||||||
1970 | 35.73 | 44.98 | 43.05 | a | 55.40 | 67.92 | 74.45 | 79.39 | 78.21 | 67.73 | 53.23 | 48.20 | 44.06 | 57.70 | ||||||||||||
1971 | 39.05 | 39.98 | 49.08 | 56.70 | 65.35 | 76.80 | 77.80 | a | 73.48 | 67.70 | 56.98 | 47.88 | 39.79 | 57.55 | ||||||||||||
1972 | 38.85 | 45.83 | b | 53.89 | 60.82 | 66.35 | 76.90 | 76.08 | 73.90 | 67.68 | 56.95 | a | 39.30 | 36.90 | 57.79 | |||||||||||
1973 | 33.61 | 40.16 | 46.47 | 50.80 | 63.03 | 74.53 | 76.98 | 78.53 | 67.47 | 60.47 | 51.07 | 38.69 | 56.82 | |||||||||||||
1974 | 37.63 | 43.20 | 55.17 | a | 58.65 | 72.02 | 77.18 | 79.10 | 74.90 | 63.98 | 59.32 | 46.43 | 36.77 | 58.70 | ||||||||||||
1975 | 37.29 | 37.11 | 46.79 | 54.52 | 64.26 | 74.73 | 75.31 | 77.63 | 66.20 | 60.89 | 46.22 | 41.81 | 56.90 | |||||||||||||
1976 | 38.31 | 48.78 | 48.50 | 59.20 | 63.63 | 75.53 | 76.85 | 77.42 | 69.17 | 53.10 | a | 41.78 | 38.55 | 57.57 | ||||||||||||
1977 | 31.92 | 43.14 | 47.40 | 58.58 | 68.68 | 79.52 | 80.94 | 78.89 | 73.63 | 60.82 | 48.87 | 42.77 | 59.60 | |||||||||||||
1978 | 33.50 | a | 35.93 | 49.48 | 61.10 | 65.53 | 75.93 | 82.10 | 77.40 | a | 70.23 | 60.50 | 46.97 | 32.69 | 57.61 | |||||||||||
1979 | 27.98 | 41.75 | 49.03 | 56.87 | 64.58 | 73.87 | 79.02 | 75.55 | 71.22 | 61.50 | a | 41.63 | 40.38 | a | 56.95 | |||||||||||
1980 | 38.29 | 41.09 | 47.29 | 54.72 | 64.47 | 81.30 | 84.79 | 77.56 | 69.60 | 57.21 | 45.30 | 44.89 | 58.88 | |||||||||||||
1981 | 41.03 | 45.56 | a | 48.98 | 63.13 | 65.76 | 78.58 | 80.87 | 75.35 | 69.37 | 58.19 | 51.92 | 42.66 | 60.12 | ||||||||||||
1982 | 39.76 | 39.66 | 50.23 | 57.17 | 65.73 | 73.15 | 78.92 | ----- | z | 71.15 | ----- | z | ----- | z | ----- | z | 59.47 | d | ||||||||
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 | 80.50 | w | 73.70 | 57.56 | 39.55 | 33.63 | 51.11 | h | ||||
2001 | 32.19 | 42.16 | 46.26 | 60.85 | 64.63 | 75.47 | 82.89 | 77.97 | 71.17 | 59.61 | 49.70 | 39.24 | 58.51 | |||||||||||||
2002 | 39.52 | 39.65 | a | 45.53 | 61.52 | a | 67.57 | d | 79.59 | c | 79.68 | l | 80.12 | a | 70.13 | c | 54.84 | 44.40 | 37.11 | 56.36 | a | |||||
2003 | 40.31 | 39.93 | 49.87 | 59.63 | 69.02 | 72.55 | 83.10 | 79.94 | 69.93 | 61.56 | 48.60 | 41.18 | 59.63 | |||||||||||||
2004 | 40.60 | f | 37.26 | 53.06 | 54.95 | 69.87 | 75.75 | 76.60 | 74.11 | 69.73 | 58.44 | 43.00 | 39.52 | 59.30 | a | |||||||||||
2005 | 42.13 | a | 43.46 | 44.94 | 55.35 | 63.81 | 76.12 | 79.28 | a | 75.32 | 72.07 | 58.11 | 48.87 | 37.94 | 58.12 | |||||||||||
2006 | 42.92 | 41.05 | 48.90 | 62.30 | 70.66 | 79.78 | 80.00 | 76.26 | 65.08 | 57.71 | 48.50 | 37.06 | 59.19 | |||||||||||||
2007 | 30.40 | 41.73 | 51.35 | 54.00 | 64.61 | 73.73 | 79.65 | 82.06 | 74.20 | 62.74 | 47.88 | 38.23 | 58.38 | |||||||||||||
2008 | 37.73 | 43.50 | 49.94 | 57.79 | a | 66.68 | 78.80 | 77.48 | 76.15 | 69.42 | 59.18 | 48.43 | 40.32 | 58.78 | ||||||||||||
2009 | 40.29 | 46.73 | 51.70 | a | 56.92 | 67.25 | c | 77.22 | c | 80.05 | 78.55 | 68.58 | 54.84 | 49.65 | 30.92 | a | 58.56 | |||||||||
2010 | 35.98 | d | 32.93 | 47.89 | 57.65 | 64.92 | 80.67 | 79.58 | 78.71 | 74.67 | 61.34 | 46.35 | 42.48 | 58.60 | ||||||||||||
2011 | 36.53 | 37.38 | b | 52.23 | 60.15 | 66.15 | 81.45 | 85.05 | c | 84.32 | a | 70.78 | 59.95 | 48.30 | 32.60 | 59.57 | ||||||||||
2012 | 42.74 | 40.38 | a | 54.71 | c | 64.18 | 70.77 | 82.50 | 84.23 | 81.92 | 73.00 | 60.48 | 53.23 | 42.58 | 62.56 | |||||||||||
2013 | 38.35 | 42.50 | 51.84 | 56.28 | 69.24 | 81.78 | 80.47 | 81.89 | d | 73.55 | 58.47 | 46.80 | 38.26 | 59.95 | ||||||||||||
2014 | 38.71 | 41.77 | 49.68 | 58.80 | 67.82 | 77.55 | 80.03 | 79.56 | 71.45 | 62.22 | a | 44.75 | 38.90 | 59.27 | ||||||||||||
2015 | 36.65 | 42.29 | 51.05 | 58.67 | 63.15 | 76.53 | 80.42 | 78.79 | 76.22 | 61.27 | 47.93 | 40.90 | 59.49 | |||||||||||||
2016 | 38.44 | 45.79 | 52.52 | 56.90 | 64.58 | 77.90 | 85.06 | 77.50 | 73.12 | 66.40 | 51.08 | 38.58 | a | 60.66 | ||||||||||||
2017 | 39.65 | 50.04 | 56.75 | a | 59.12 | 65.61 | 78.68 | 82.61 | 76.65 | 71.02 | 59.63 | 54.00 | 40.10 | 61.15 | ||||||||||||
2018 | 39.82 | 43.79 | 53.39 | 57.17 | 73.39 | 81.37 | 81.47 | 79.55 | 72.68 | 58.40 | 44.38 | 38.08 | 60.29 | |||||||||||||
2019 | 40.40 | 43.61 | 47.95 | 58.63 | 63.81 | 75.85 | 82.16 | 83.12 | g | 78.07 | 54.29 | 45.77 | b | 42.06 | 57.51 | a | ||||||||||
2020 | 41.43 | a | 41.09 | 53.85 | 58.34 | a | 72.06 | 81.43 | 83.45 | 83.11 | i | 70.08 | 58.77 | 52.13 | 39.77 | 59.31 | a | |||||||||
2021 | 38.66 | 36.29 | 50.44 | 57.20 | 67.26 | 78.85 | 79.12 | a | 79.42 | 75.47 | 61.45 | 51.50 | 47.74 | 60.28 | ||||||||||||
2022 | 38.02 | 36.46 | 48.56 | 61.08 | 70.66 | 79.57 | 84.52 | 78.34 | 74.32 | 56.94 | 42.53 | 38.31 | 59.11 | |||||||||||||
2023 | 37.90 | 40.93 | 48.84 | b | 54.66 | b | 65.27 | c | 72.31 | a | 80.37 | 79.87 | 72.37 | 57.74 | 47.17 | 40.61 | 58.17 | |||||||||
2024 | 35.46 | g | 43.71 | 47.52 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.61 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.90 | 41.38 | 49.02 | 58.07 | 66.68 | 76.93 | 80.27 | 77.84 | 70.89 | 59.30 | 47.27 | 39.16 | 58.70 | |||||||||||||
S.D. | 4.15 | 3.83 | 3.57 | 2.77 | 2.53 | 2.90 | 2.55 | 2.39 | 2.74 | 2.83 | 3.58 | 3.24 | 1.20 | |||||||||||||
SKEW | -0.61 | -0.09 | -0.23 | 0.02 | 0.78 | 0.24 | 0.06 | 0.17 | 0.06 | 0.04 | -0.27 | -0.24 | 0.84 | |||||||||||||
MAX | 45.17 | 50.04 | 56.75 | 64.18 | 73.39 | 82.50 | 85.06 | 84.32 | 78.07 | 66.40 | 54.00 | 47.74 | 62.56 | |||||||||||||
MIN | 27.98 | 31.69 | 40.42 | 50.80 | 63.03 | 72.31 | 75.31 | 73.48 | 63.98 | 53.10 | 39.30 | 30.92 | 56.82 | |||||||||||||
YRS | 49 | 51 | 52 | 51 | 51 | 51 | 50 | 48 | 52 | 51 | 50 | 50 | 44 |