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 | ----- | 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 | ----- | 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 | ----- | 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 | 76.03 | m | 79.79 | 77.29 | s | 67.24 | a | 59.16 | 45.53 | 39.16 | 58.18 | g | ||||
1965 | 40.35 | 37.93 | 39.27 | 59.25 | 63.79 | 70.12 | 76.26 | 72.74 | f | 67.32 | b | 57.97 | 51.55 | 42.27 | 55.10 | a | ||||||||||
1966 | 31.32 | a | 35.45 | 50.26 | 55.31 | a | 65.02 | a | 71.37 | k | 80.56 | n | 72.48 | 68.55 | 57.53 | 50.10 | 34.92 | 52.09 | b | |||||||
1967 | 39.97 | 40.91 | 53.31 | 60.40 | a | 63.18 | a | 71.73 | 75.66 | 72.52 | 67.45 | 60.85 | 45.43 | 35.23 | a | 57.22 | ||||||||||
1968 | 38.82 | 39.39 | a | 48.11 | 53.93 | 62.23 | 73.90 | a | 75.31 | 75.57 | b | 67.97 | l | 60.87 | 45.12 | 36.23 | 55.41 | a | ||||||||
1969 | 42.81 | 40.29 | 39.13 | 58.43 | 65.24 | 70.14 | a | 78.25 | a | 76.82 | 69.70 | 54.66 | 45.47 | 39.56 | 56.71 | |||||||||||
1970 | 34.53 | 42.16 | 41.65 | 53.00 | 64.27 | 70.60 | 75.35 | a | 75.78 | f | 68.20 | 52.73 | 46.45 | 40.95 | 53.63 | a | ||||||||||
1971 | 37.35 | 39.28 | a | 47.80 | a | 54.40 | 62.85 | 73.78 | 75.71 | 71.21 | 65.83 | 57.81 | 47.22 | 39.19 | 56.04 | |||||||||||
1972 | 38.39 | 43.36 | 53.23 | 59.97 | 64.16 | 73.45 | 74.61 | 71.94 | 65.61 | g | 57.79 | 37.97 | 36.00 | 55.53 | a | |||||||||||
1973 | 34.35 | 39.73 | ----- | z | 49.63 | 61.61 | 71.77 | 74.84 | ----- | z | 63.11 | u | 60.24 | 49.47 | 38.52 | 53.35 | c | |||||||||
1974 | 35.15 | 42.80 | 53.71 | 58.35 | 69.85 | 74.48 | 77.84 | 72.82 | n | 62.67 | a | 58.61 | 45.50 | 36.10 | 55.92 | a | ||||||||||
1975 | 37.35 | 37.46 | 46.61 | 52.95 | 62.79 | 71.62 | 73.29 | 76.87 | h | 65.95 | 59.58 | 45.78 | 41.32 | 54.07 | a | |||||||||||
1976 | 37.92 | 46.90 | 47.82 | 57.65 | 62.02 | 73.13 | 76.11 | i | 75.24 | 67.07 | 52.75 | a | 42.27 | 38.56 | 54.67 | a | ||||||||||
1977 | 30.98 | 43.54 | 47.06 | 56.72 | 66.85 | 76.47 | 78.80 | f | 76.85 | 71.18 | 60.52 | a | 48.90 | a | 41.00 | a | 56.37 | a | ||||||||
1978 | 31.85 | 33.27 | b | 48.56 | 59.83 | 64.09 | c | 74.55 | ----- | z | 75.18 | 69.31 | c | 59.53 | 45.95 | 33.45 | 54.14 | a | ||||||||
1979 | 27.60 | 41.36 | 49.20 | h | 56.15 | 62.71 | b | 71.07 | 76.61 | i | 72.80 | h | 69.42 | 61.35 | 41.00 | 39.73 | 52.26 | c | ||||||||
1980 | 36.61 | 41.33 | 44.82 | a | 51.97 | 62.47 | a | 77.77 | 81.91 | d | 76.85 | 69.35 | 55.92 | f | 44.87 | 44.84 | b | 57.53 | a | |||||||
1981 | 39.42 | g | 43.45 | 48.25 | e | 62.43 | 63.78 | f | 76.17 | 77.55 | 72.65 | g | 68.82 | e | 58.52 | 49.82 | 42.05 | 58.56 | c | |||||||
1982 | 38.82 | a | 38.38 | 48.19 | b | 54.83 | 63.03 | 69.57 | 76.10 | g | 75.00 | g | 69.57 | 56.45 | 43.98 | 36.26 | 51.91 | b | ||||||||
1983 | 36.55 | 38.23 | 46.35 | a | 50.65 | 60.00 | a | 70.11 | b | 77.80 | h | 79.09 | i | 72.05 | 59.53 | b | 53.50 | j | 18.74 | n | 54.18 | d | ||||
1984 | 34.17 | b | 42.81 | 45.32 | 51.92 | 65.45 | 72.58 | 76.02 | 74.37 | 64.89 | l | 55.18 | f | 43.55 | k | 39.53 | a | 55.80 | c | |||||||
1985 | 33.52 | 38.09 | 49.00 | 58.18 | 65.38 | a | 73.31 | a | 76.61 | 75.89 | l | 65.70 | e | 56.82 | 44.33 | d | 35.53 | 54.23 | a | |||||||
1986 | 42.84 | 40.11 | 52.07 | a | 58.63 | 63.23 | 72.28 | 78.53 | 75.87 | 68.31 | a | 54.37 | 41.98 | 35.81 | b | 57.00 | ||||||||||
1987 | 34.93 | b | 40.27 | 43.97 | 54.23 | 63.56 | 71.33 | 76.65 | 74.79 | b | 66.73 | 56.61 | 43.33 | 32.53 | a | 54.91 | ||||||||||
1988 | ----- | z | ----- | z | 44.31 | 52.53 | 61.23 | a | 72.33 | 74.05 | i | 74.87 | 65.98 | a | 57.58 | a | 46.43 | c | 35.79 | 56.78 | c | |||||
1989 | 37.42 | 32.66 | 50.73 | a | 57.38 | 65.40 | 67.47 | 74.58 | 73.90 | 65.33 | a | 57.65 | 46.40 | 30.65 | 54.96 | |||||||||||
1990 | 35.37 | a | 37.91 | 44.30 | a | 54.75 | 60.12 | a | 78.17 | 74.50 | g | 73.93 | d | 68.89 | h | 55.32 | 47.63 | 29.64 | b | 51.71 | b | |||||
1991 | 31.52 | b | 43.76 | a | 47.00 | a | 55.17 | 64.62 | a | 72.20 | b | 73.97 | 73.74 | 64.79 | a | 57.06 | 39.64 | a | 36.78 | a | 55.02 | |||||
1992 | 35.74 | 42.59 | b | 49.89 | 57.40 | 62.88 | a | 68.52 | 75.39 | 72.98 | a | 68.96 | e | 58.84 | 39.77 | 35.03 | 55.67 | |||||||||
1993 | 33.07 | a | 37.34 | 47.37 | 53.92 | 64.06 | 72.13 | 77.16 | 75.92 | ----- | z | 55.35 | a | 41.15 | 37.85 | 54.12 | a | |||||||||
1994 | 36.16 | b | 38.45 | 48.50 | b | 54.75 | b | 64.10 | a | 77.34 | a | 77.16 | 76.90 | 68.90 | 56.05 | a | 44.57 | a | 41.16 | 57.00 | ||||||
1995 | 37.37 | 44.43 | 46.00 | 51.52 | 60.81 | 69.37 | 75.45 | 77.42 | 67.40 | 56.76 | 47.32 | 38.19 | 56.00 | |||||||||||||
1996 | 35.76 | 41.93 | 42.53 | 55.50 | 69.06 | 73.59 | a | 75.56 | 73.18 | 64.73 | 55.60 | 45.08 | 36.32 | 55.74 | ||||||||||||
1997 | 32.97 | 37.14 | 48.95 | 47.46 | f | 62.32 | l | 71.32 | 76.45 | 74.31 | 70.05 | 56.75 | a | 41.78 | 33.05 | 54.28 | b | |||||||||
1998 | ----- | z | 40.50 | 42.65 | 51.48 | 65.90 | 73.08 | 79.37 | 74.55 | 72.87 | 58.35 | 47.10 | 36.74 | 58.42 | a | |||||||||||
1999 | 38.87 | 44.77 | 45.19 | 52.87 | 60.24 | 70.67 | 77.06 | 76.21 | 66.80 | 56.37 | 49.79 | b | 37.58 | 56.37 | ||||||||||||
2000 | 39.68 | 45.50 | 47.69 | 56.07 | 66.82 | 72.73 | 77.92 | 79.13 | 71.05 | 57.05 | 38.22 | 31.83 | a | 56.97 | ||||||||||||
2001 | 31.84 | 39.28 | a | 42.90 | 57.75 | 63.31 | 73.47 | 80.55 | 76.24 | 68.67 | 57.40 | 48.78 | 38.19 | 56.53 | ||||||||||||
2002 | 37.00 | 37.57 | 41.67 | a | 58.07 | a | 63.79 | b | 76.70 | b | 77.74 | 76.76 | 69.04 | b | 52.40 | 43.37 | 34.16 | 55.69 | ||||||||
2003 | 39.37 | a | 37.05 | 47.55 | 56.43 | 65.77 | 68.53 | 79.42 | 77.84 | 66.75 | 59.53 | 45.27 | 40.16 | b | 56.97 | |||||||||||
2004 | 37.23 | a | 35.98 | 50.35 | a | 53.50 | 66.94 | 72.33 | 73.97 | 71.87 | 67.00 | 56.92 | 41.93 | 37.97 | a | 55.50 | ||||||||||
2005 | 38.19 | 41.04 | 43.79 | 53.57 | 61.55 | 71.82 | 76.15 | a | 73.48 | 69.65 | 56.63 | a | 46.40 | 36.06 | 55.69 | |||||||||||
2006 | 41.52 | 39.58 | c | 46.45 | 58.68 | 67.08 | 77.30 | o | 78.43 | a | 74.03 | a | 63.43 | 56.42 | a | 47.68 | 37.76 | f | 57.33 | b | ||||||
2007 | 29.61 | 36.45 | 51.21 | b | 51.04 | b | 62.56 | 69.93 | a | 76.15 | 78.58 | 70.59 | a | 62.05 | i | 45.09 | a | 35.47 | 55.15 | a | ||||||
2008 | 34.28 | a | 39.67 | 46.40 | 53.47 | 63.53 | 75.90 | 75.61 | 74.18 | 66.45 | 57.05 | a | 47.40 | 36.73 | 55.89 | |||||||||||
2009 | 37.57 | a | 44.75 | 48.39 | 54.05 | 63.32 | 72.70 | 76.66 | 75.11 | 65.38 | 52.85 | 48.18 | 29.71 | b | 55.72 | |||||||||||
2010 | 34.40 | 31.57 | 44.94 | 56.12 | 61.18 | f | 76.57 | 76.10 | 75.23 | 71.38 | 59.11 | 44.36 | a | 39.44 | 55.38 | a | ||||||||||
2011 | 34.87 | 33.04 | 48.79 | 56.67 | 62.45 | 77.28 | 81.52 | a | 80.37 | 67.88 | 57.06 | 44.84 | b | 31.15 | 56.33 | |||||||||||
2012 | 39.66 | 38.36 | a | 51.87 | a | 59.47 | 66.43 | a | 74.16 | a | 78.73 | a | 75.55 | a | 66.92 | 53.62 | a | 48.45 | 35.50 | b | 57.39 | |||||
2013 | 32.82 | 36.84 | 45.82 | 48.32 | 62.86 | b | 77.15 | c | 76.10 | 75.69 | 69.02 | 52.82 | 42.02 | 34.06 | 54.46 | |||||||||||
2014 | 31.53 | 32.88 | 42.92 | 52.73 | 63.45 | 73.52 | 75.02 | 75.40 | 66.28 | 58.19 | 41.15 | 35.11 | 54.02 | |||||||||||||
2015 | 34.18 | 37.88 | 48.02 | 54.35 | 59.10 | 72.42 | 76.76 | 74.15 | 71.28 | 58.87 | 45.32 | 38.45 | 55.90 | |||||||||||||
2016 | 37.81 | 44.17 | 49.26 | 54.25 | 60.73 | 74.48 | 79.65 | 72.66 | 68.82 | 61.84 | 48.33 | 34.89 | 57.24 | |||||||||||||
2017 | 36.66 | 45.45 | 51.66 | 55.07 | 60.85 | 72.77 | 76.47 | 70.76 | 66.32 | 56.13 | 50.07 | 35.97 | 56.51 | |||||||||||||
2018 | 36.31 | 38.36 | 48.44 | 51.75 | 67.92 | 74.62 | 76.24 | 73.55 | a | 67.43 | 54.61 | 40.82 | 35.92 | 55.50 | ||||||||||||
2019 | 36.35 | 37.34 | 43.48 | 54.85 | 58.89 | 69.22 | 77.00 | 77.50 | 72.43 | 50.37 | 41.40 | 39.16 | 54.83 | |||||||||||||
2020 | 37.56 | 36.55 | 49.94 | 52.40 | 65.68 | 76.07 | 78.29 | 76.21 | c | 65.29 | b | 54.21 | 48.95 | 37.42 | 56.55 | |||||||||||
2021 | 36.21 | 29.29 | b | 45.29 | 50.80 | 62.15 | 72.82 | 74.50 | 74.65 | 70.92 | 57.66 | 47.58 | 43.44 | 55.44 | ||||||||||||
2022 | 34.23 | 32.80 | 43.60 | 55.57 | 65.24 | 74.20 | 80.71 | 74.56 | 71.32 | h | 56.21 | 41.07 | 35.19 | 53.94 | a | |||||||||||
2023 | 37.15 | a | 37.88 | 44.63 | 52.82 | 64.55 | 70.45 | 77.52 | 77.29 | 71.15 | 57.82 | 46.18 | 40.26 | 56.47 | ||||||||||||
2024 | 31.69 | 42.91 | 46.66 | 51.08 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.42 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 35.93 | 39.32 | 46.96 | 55.07 | 63.70 | 72.91 | 76.93 | 75.07 | 68.10 | 57.03 | 45.20 | 36.96 | 56.01 | |||||||||||||
S.D. | 3.18 | 3.82 | 3.33 | 2.98 | 2.35 | 2.56 | 1.96 | 2.03 | 2.31 | 2.44 | 3.21 | 3.27 | 0.86 | |||||||||||||
SKEW | -0.17 | -0.32 | -0.13 | 0.16 | 0.27 | 0.17 | 0.61 | 0.18 | -0.01 | -0.41 | -0.30 | -0.07 | -0.32 | |||||||||||||
MAX | 42.84 | 46.90 | 53.71 | 62.43 | 69.85 | 78.17 | 81.91 | 80.37 | 72.87 | 61.84 | 51.55 | 44.84 | 57.39 | |||||||||||||
MIN | 27.60 | 29.29 | 39.13 | 48.32 | 58.89 | 67.47 | 73.29 | 70.76 | 62.67 | 50.37 | 37.97 | 29.64 | 54.02 | |||||||||||||
YRS | 57 | 59 | 58 | 58 | 56 | 57 | 51 | 49 | 53 | 57 | 58 | 58 | 32 |