YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1940 | ----- | z | ----- | z | 55.61 | 62.28 | a | 79.20 | a | 87.77 | 93.42 | 89.87 | 76.03 | 68.29 | 46.73 | 38.73 | a | 69.79 | b | |||||||
1941 | 36.58 | 44.07 | 52.03 | 56.86 | a | 75.71 | 81.90 | 91.68 | 87.80 | a | 75.33 | 59.65 | 51.76 | a | 42.81 | 63.01 | ||||||||||
1942 | 39.35 | 36.46 | 47.03 | 63.52 | a | 72.90 | 85.83 | 93.47 | a | 89.94 | 82.17 | a | 67.23 | 53.52 | a | 44.73 | a | 64.68 | ||||||||
1943 | 41.60 | a | 47.92 | b | 52.19 | d | 72.30 | c | 73.73 | a | 83.23 | 94.03 | 84.79 | b | 83.67 | c | 68.60 | a | 52.11 | b | 39.37 | a | 66.13 | |||
1944 | 31.08 | s | 40.59 | 49.14 | b | 57.80 | 74.13 | 81.53 | 91.42 | 91.23 | 84.20 | 69.90 | 48.97 | 41.93 | a | 66.44 | a | |||||||||
1945 | 40.97 | 46.07 | a | 52.47 | a | 62.03 | 79.16 | 82.27 | 93.26 | 89.65 | 81.55 | a | 67.39 | 50.10 | a | 40.30 | a | 65.43 | ||||||||
1946 | 35.19 | 43.71 | 56.06 | 69.90 | 72.10 | a | 88.23 | 91.42 | 87.65 | 81.60 | 59.67 | a | 46.23 | 43.29 | 64.59 | |||||||||||
1947 | 35.97 | 45.96 | 53.97 | 61.77 | 78.90 | 79.77 | 90.52 | 84.30 | a | 83.70 | 67.61 | 42.77 | 37.06 | 63.52 | ||||||||||||
1948 | 35.71 | c | 39.97 | 44.55 | 64.77 | 76.68 | 83.79 | a | 91.65 | 87.74 | 83.13 | 72.38 | r | 38.50 | h | 38.43 | a | 64.64 | b | |||||||
1949 | 30.16 | 35.50 | b | 51.74 | 66.30 | 71.80 | a | 81.73 | 90.52 | d | 90.65 | 82.38 | a | 61.86 | c | 57.58 | d | 38.50 | a | 63.23 | ||||||
1950 | 37.03 | 45.30 | a | 52.62 | e | 65.73 | 72.97 | 87.76 | a | 89.45 | 89.10 | b | 77.41 | c | 74.54 | e | 53.80 | 43.86 | b | 65.80 | ||||||
1951 | 36.83 | a | 40.96 | c | 51.24 | b | 64.29 | b | 73.90 | 82.72 | a | 93.45 | 86.48 | 80.82 | b | 66.95 | j | 44.00 | 34.80 | f | 65.47 | b | ||||
1952 | 36.13 | 38.76 | 43.68 | 64.93 | c | 75.47 | a | 86.07 | a | 90.70 | d | 87.32 | c | 81.93 | 71.71 | 45.37 | 36.79 | b | 63.24 | |||||||
1953 | 41.17 | b | 41.68 | 54.21 | c | 59.83 | a | 67.42 | 86.52 | g | 91.26 | 83.87 | 82.68 | e | 64.86 | c | 50.21 | a | 36.32 | 61.23 | a | |||||
1954 | 40.55 | 51.07 | 49.84 | 69.10 | 77.68 | 84.93 | a | 91.41 | b | 87.65 | 78.83 | 67.82 | c | 53.72 | a | 36.45 | 65.75 | |||||||||
1955 | 33.10 | 32.96 | 49.32 | 59.83 | 72.26 | 82.27 | 92.80 | a | 88.25 | c | 82.37 | 67.43 | a | 44.17 | a | 43.90 | b | 62.39 | ||||||||
1956 | 43.77 | a | 39.58 | c | 55.27 | a | 62.87 | 76.45 | 88.97 | 88.84 | 83.23 | a | 80.86 | a | 64.16 | 41.17 | a | 32.93 | b | 63.17 | ||||||
1957 | 31.58 | 40.25 | 49.07 | b | 55.34 | a | 65.35 | 85.69 | d | 87.39 | 82.83 | a | 78.76 | a | 62.62 | e | 42.70 | c | 39.46 | e | 60.09 | |||||
1958 | 38.88 | e | 46.48 | e | 46.81 | d | 57.19 | i | 79.91 | i | 85.78 | c | 92.00 | e | 90.33 | p | 78.23 | d | 69.43 | c | 52.07 | a | 43.50 | a | 61.46 | c |
1959 | 38.68 | 42.89 | 53.21 | c | 65.44 | c | 74.63 | d | 90.14 | b | 93.66 | b | 87.71 | 74.80 | 62.94 | 48.50 | 39.83 | a | 64.37 | |||||||
1960 | 34.65 | 37.84 | d | 52.77 | 66.23 | 72.65 | 88.00 | ----- | z | 92.20 | a | 84.97 | 68.04 | h | 54.91 | h | 41.35 | 63.41 | c | |||||||
1961 | 42.29 | 48.75 | 51.97 | 65.87 | 78.90 | b | 92.27 | 93.13 | a | 89.00 | 70.85 | c | 62.87 | a | 46.04 | f | 32.52 | b | 66.22 | a | ||||||
1962 | 35.54 | c | 44.52 | a | 47.79 | c | 70.07 | 74.57 | a | 87.50 | 92.58 | 92.42 | 80.37 | 69.23 | 54.27 | 42.42 | 65.94 | |||||||||
1963 | 28.45 | b | 48.93 | 51.58 | 63.00 | 79.94 | 85.10 | 94.97 | 86.55 | 82.40 | 72.26 | 52.40 | 40.00 | 65.46 | ||||||||||||
1964 | 36.68 | 38.62 | 45.42 | 62.63 | 74.81 | 83.93 | 95.87 | 86.81 | 78.48 | a | 72.00 | 47.40 | 37.52 | 63.35 | ||||||||||||
1965 | 40.71 | 42.43 | 48.03 | 61.66 | a | 70.90 | a | 80.28 | a | 88.10 | 86.80 | a | 72.27 | 69.00 | a | 54.40 | 39.23 | 62.82 | ||||||||
1966 | 36.46 | g | 37.81 | a | 55.42 | 66.70 | 78.13 | 84.83 | a | 93.16 | 90.35 | 80.57 | 64.26 | 53.93 | 39.52 | 67.70 | a | |||||||||
1967 | 36.10 | a | 47.18 | 58.13 | 63.07 | 71.84 | 77.64 | b | 90.20 | a | 88.74 | 80.45 | a | 68.61 | 54.03 | 31.67 | a | 63.97 | ||||||||
1968 | 34.45 | 45.19 | b | 55.35 | 57.80 | 71.74 | 87.43 | 91.50 | i | 82.14 | b | 77.73 | 65.74 | 48.00 | 36.16 | 60.16 | a | |||||||||
1969 | 40.73 | a | 40.52 | a | 50.48 | 67.83 | 80.16 | 81.30 | 91.97 | 93.68 | 81.50 | 56.26 | 48.23 | 41.13 | a | 64.48 | ||||||||||
1970 | 37.35 | 50.82 | 49.94 | 58.40 | 76.61 | 82.83 | a | 89.43 | a | 89.87 | 76.43 | 57.93 | a | 48.77 | 39.60 | a | 63.17 | |||||||||
1971 | 38.24 | b | 42.11 | a | 53.00 | 62.87 | 70.68 | 85.73 | 92.42 | 89.58 | 74.97 | 62.19 | 45.10 | 35.13 | a | 62.67 | ||||||||||
1972 | 39.00 | 49.03 | 62.45 | ----- | z | 75.55 | 83.83 | 92.68 | 87.16 | 77.73 | 59.77 | 42.10 | 34.71 | 64.00 | a | |||||||||||
1973 | 28.16 | 39.61 | 48.55 | 58.27 | 73.83 | a | 82.90 | 88.70 | d | 87.87 | 78.10 | 68.57 | a | 48.93 | 37.29 | 61.73 | ||||||||||
1974 | 28.00 | 36.25 | 57.39 | ----- | z | 79.06 | 89.13 | 88.57 | a | 89.27 | a | 81.40 | 66.90 | a | 47.93 | 35.61 | 63.59 | a | ||||||||
1975 | 34.28 | b | 41.18 | 49.00 | 56.38 | a | ----- | z | 81.23 | 90.10 | 87.45 | ----- | z | 65.70 | a | 47.57 | 37.52 | b | 59.04 | b | ||||||
1976 | 32.35 | 47.70 | b | 47.39 | 61.40 | 72.71 | 82.07 | 91.71 | 85.81 | 76.97 | a | 64.81 | 51.07 | 40.74 | 62.89 | |||||||||||
1977 | 33.39 | 47.64 | 48.03 | 67.97 | a | 72.35 | 89.52 | a | 89.45 | b | 88.71 | 80.23 | 68.48 | 48.93 | 41.84 | 64.71 | ||||||||||
1978 | 35.90 | 41.22 | a | 55.57 | c | 62.46 | b | 68.58 | 85.76 | a | 91.20 | a | 88.67 | a | 78.87 | 68.66 | b | 48.97 | 28.97 | 62.90 | ||||||
1979 | 26.16 | 37.21 | 47.65 | 61.73 | 69.63 | a | 85.04 | b | 91.71 | 85.97 | 84.77 | 69.29 | 41.93 | 37.71 | 61.57 | |||||||||||
1980 | 37.23 | a | 45.79 | 47.94 | 64.17 | 67.00 | 87.37 | 93.19 | 87.65 | 79.80 | ----- | z | 43.32 | k | 48.45 | 65.86 | b | |||||||||
1981 | 46.39 | 48.18 | 52.61 | 68.77 | 73.94 | 89.40 | 91.65 | 89.29 | 82.00 | 61.71 | 53.30 | 40.45 | 66.47 | |||||||||||||
1982 | 36.57 | a | 41.54 | 52.62 | b | 63.90 | 71.90 | 83.40 | 90.00 | a | 87.39 | 77.11 | b | 60.44 | d | 44.52 | a | 38.87 | 62.35 | |||||||
1983 | 41.00 | ----- | z | 52.75 | c | 56.90 | a | 69.10 | a | 80.21 | a | 87.06 | 89.28 | b | 83.58 | d | 67.75 | g | 46.27 | d | 34.74 | d | 64.09 | b | ||
1984 | 32.67 | a | 40.54 | a | 51.58 | e | 57.74 | c | 78.64 | c | 81.31 | d | 90.86 | c | 87.00 | b | 80.89 | c | 55.07 | d | 50.33 | c | 37.69 | b | 62.03 | |
1985 | 37.07 | a | 39.61 | 52.74 | 65.58 | f | 74.04 | d | 88.38 | f | 89.79 | b | 90.67 | a | 74.44 | c | 63.77 | a | 47.15 | c | 39.39 | 60.87 | b | |||
1986 | 42.93 | b | 48.61 | 59.30 | a | 62.21 | k | 72.96 | d | 89.21 | a | 88.33 | a | 90.50 | a | 74.62 | a | 62.93 | c | 49.48 | c | 42.59 | b | 65.59 | a | |
1987 | 38.57 | a | 44.86 | 51.21 | b | 70.00 | b | 73.73 | a | 88.86 | a | 89.38 | b | 85.34 | b | 81.71 | b | 69.06 | 47.67 | 37.62 | b | 64.83 | ||||
1988 | 32.97 | 44.62 | 52.20 | a | 64.83 | a | 75.52 | 90.00 | b | 94.97 | 90.26 | 82.52 | g | 73.03 | 49.50 | b | 40.77 | 64.42 | a | |||||||
1989 | 35.23 | 40.68 | 59.33 | a | 70.60 | 77.35 | 86.07 | a | 95.45 | 87.30 | a | 82.23 | 67.33 | a | 52.93 | 41.52 | 66.34 | |||||||||
1990 | 39.33 | a | 46.89 | 57.40 | a | 68.37 | c | 74.13 | a | 91.67 | c | 91.00 | 89.58 | 84.73 | 66.52 | b | 50.40 | 33.16 | 66.10 | |||||||
1991 | 33.42 | 47.32 | 51.03 | 61.14 | b | 73.00 | 84.80 | 92.67 | a | 89.81 | 79.62 | a | 68.20 | a | 45.52 | a | 34.63 | a | 63.43 | |||||||
1992 | 35.00 | 46.07 | 56.87 | a | 72.52 | e | 77.07 | d | 85.27 | d | 89.00 | b | 90.10 | a | 82.30 | 71.61 | c | 44.29 | b | 37.00 | 65.59 | |||||
1993 | 40.16 | 42.00 | 56.67 | a | 62.36 | b | 74.42 | 83.77 | 92.18 | c | 89.34 | b | 80.93 | 63.72 | b | 45.97 | a | 40.69 | e | 64.35 | ||||||
1994 | 43.61 | c | 42.74 | a | 61.29 | c | 65.89 | b | 78.61 | c | 93.07 | b | 96.79 | b | 93.96 | d | 84.10 | a | 64.53 | a | 48.12 | e | 41.17 | h | 70.25 | a |
1995 | 43.38 | g | 55.05 | h | 56.63 | l | 63.00 | p | 66.47 | a | 82.64 | b | 90.10 | 92.45 | 83.53 | 70.41 | b | 59.88 | e | 51.94 | o | 77.93 | e | |||
1996 | 43.00 | j | 49.40 | i | 54.88 | e | 62.95 | j | 80.50 | k | 89.12 | d | 94.07 | b | 93.66 | b | 75.88 | d | 67.31 | e | 50.14 | i | 38.25 | k | 79.15 | f |
1997 | 39.65 | k | 44.85 | h | 62.05 | l | 58.73 | h | 74.47 | l | 86.33 | f | 90.91 | h | 86.23 | e | 78.15 | d | 63.07 | c | 47.71 | i | 39.11 | c | 66.64 | h |
1998 | 44.86 | q | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 92.23 | a | 91.00 | 82.53 | 65.97 | 51.86 | a | 40.42 | 70.67 | f | ||||
1999 | 43.30 | a | 48.04 | b | 61.23 | 57.03 | 70.87 | 84.33 | 90.74 | 84.81 | 76.90 | 70.39 | 58.38 | a | 42.00 | 65.67 | ||||||||||
2000 | 42.16 | 47.66 | 53.26 | 68.86 | a | 79.48 | 87.63 | 94.68 | 92.29 | 80.93 | 66.84 | 41.87 | 40.84 | 66.37 | ||||||||||||
2001 | 39.97 | 45.46 | 56.03 | 66.33 | 79.74 | 90.77 | 93.35 | 89.68 | 85.67 | 69.74 | 57.14 | a | 38.81 | 67.72 | ||||||||||||
2002 | 38.79 | b | 42.96 | 53.10 | a | 71.03 | 79.06 | 93.53 | 98.48 | 92.06 | 78.73 | 64.57 | a | 49.40 | 42.16 | 66.99 | ||||||||||
2003 | 45.97 | 45.19 | a | 56.00 | 66.03 | 77.13 | 87.60 | 100.90 | 93.52 | 81.40 | 73.93 | a | 45.77 | 40.90 | 67.86 | |||||||||||
2004 | 37.19 | 40.93 | 62.84 | 63.90 | 76.42 | 86.55 | a | 92.42 | 88.45 | 77.27 | 63.53 | a | 47.76 | a | 38.87 | a | 64.68 | |||||||||
2005 | 44.97 | 45.43 | 53.23 | 63.53 | 75.84 | 80.63 | 96.70 | a | 88.10 | a | 79.83 | 66.87 | 52.35 | d | 39.68 | c | 65.60 | |||||||||
2006 | 41.83 | a | 46.86 | 51.90 | 67.23 | d | 79.48 | f | 91.41 | c | 94.00 | e | 88.07 | c | 75.50 | b | 60.65 | h | 52.00 | i | 38.15 | d | 66.11 | c | ||
2007 | 37.00 | 46.46 | 58.81 | e | 65.12 | f | 78.91 | h | 88.79 | b | 96.90 | a | 91.43 | c | 82.50 | b | 65.20 | f | 58.50 | h | 35.37 | a | 67.16 | d | ||
2008 | 34.68 | 41.55 | 53.28 | b | 61.07 | c | 72.64 | c | 85.00 | a | 94.10 | 91.48 | 80.33 | 66.87 | 53.79 | a | 39.12 | f | 66.80 | a | ||||||
2009 | 38.70 | a | 46.96 | b | 57.00 | d | 60.21 | a | 76.06 | 80.30 | 93.52 | 89.97 | 81.45 | a | 60.77 | 52.79 | a | 33.03 | b | 64.23 | ||||||
2010 | 36.13 | 37.39 | 51.00 | 62.17 | 68.16 | 86.87 | 93.29 | 87.03 | 83.55 | a | 67.71 | 48.43 | 44.54 | c | 63.86 | |||||||||||
2011 | 34.58 | 39.68 | 54.23 | 60.67 | 67.24 | b | 85.13 | 89.58 | 92.26 | 81.07 | a | 65.74 | 49.27 | 39.27 | a | 63.23 | ||||||||||
2012 | 42.00 | 44.38 | 59.97 | 69.07 | a | 79.48 | 92.30 | 92.77 | 90.13 | 82.03 | 67.52 | 55.27 | 39.66 | b | 67.88 | |||||||||||
2013 | 32.58 | 41.21 | 54.39 | 61.10 | a | 73.77 | 90.97 | a | 93.58 | 87.68 | 77.27 | 58.64 | q | 48.30 | 33.21 | b | 63.10 | a | ||||||||
2014 | 38.93 | a | 46.29 | 56.27 | a | 61.97 | 71.26 | 85.72 | a | 94.10 | a | 82.77 | 80.55 | a | 66.81 | 47.90 | 41.20 | f | 66.60 | a | ||||||
2015 | 41.83 | g | 51.60 | c | 61.13 | a | 63.96 | e | 67.97 | b | 87.56 | c | 85.97 | 90.03 | a | 83.20 | 69.03 | b | 49.00 | a | 35.27 | a | 67.70 | a | ||
2016 | 36.97 | b | 45.85 | b | 56.42 | 61.76 | a | 70.42 | 91.43 | 91.94 | 86.60 | a | 78.18 | b | 68.33 | d | 56.00 | a | 37.97 | a | 65.16 | |||||
2017 | 37.30 | a | 49.75 | 61.63 | a | 63.66 | a | 72.55 | b | 91.45 | a | 93.62 | b | 89.86 | b | 80.66 | a | 65.61 | 58.72 | a | 45.93 | a | 67.56 | |||
2018 | 43.48 | 44.96 | c | 55.70 | a | 66.70 | 78.73 | a | 91.57 | 96.68 | c | 92.41 | b | 86.67 | 60.87 | 48.52 | a | 40.00 | j | 69.66 | a | |||||
2019 | 34.68 | 39.89 | 52.35 | 66.50 | 66.74 | 83.93 | 93.68 | 93.06 | 83.53 | 61.32 | c | 53.90 | a | 39.75 | c | 64.11 | ||||||||||
2020 | 34.17 | b | 42.44 | b | 56.91 | i | 66.00 | r | 80.37 | d | 87.73 | 93.48 | 97.39 | 81.20 | 69.90 | b | 56.53 | k | ----- | z | 73.34 | d | ||||
2021 | 40.13 | p | 45.12 | c | 54.03 | 65.46 | b | 76.68 | 92.57 | 96.03 | a | 90.55 | 83.73 | 63.91 | h | 56.41 | c | 43.35 | h | 73.40 | c | |||||
2022 | 39.55 | k | 41.89 | j | 54.97 | b | 64.73 | d | 75.03 | a | 88.26 | c | 93.26 | 91.00 | a | 84.07 | b | 67.00 | j | 46.14 | h | 39.56 | d | 73.86 | d | |
2023 | 39.08 | e | 39.62 | g | 45.88 | e | 61.08 | d | 78.13 | h | 82.77 | d | 97.70 | a | 90.97 | a | 82.78 | c | 69.00 | d | 51.72 | e | 43.96 | d | 66.49 | b |
2024 | 42.17 | a | 49.54 | e | 53.85 | d | 66.48 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.52 | i |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.39 | 43.63 | 53.27 | 63.84 | 74.17 | 86.10 | 92.33 | 88.93 | 80.33 | 66.19 | 49.72 | 39.00 | 64.47 | |||||||||||||
S.D. | 4.24 | 4.08 | 4.28 | 4.03 | 3.82 | 3.70 | 2.69 | 2.82 | 3.18 | 4.02 | 4.33 | 3.53 | 1.77 | |||||||||||||
SKEW | -0.24 | -0.23 | 0.12 | 0.04 | -0.32 | 0.06 | 0.35 | -0.04 | -0.61 | -0.45 | 0.17 | -0.20 | 0.02 | |||||||||||||
MAX | 46.39 | 51.60 | 62.84 | 72.52 | 80.37 | 93.53 | 100.90 | 97.39 | 86.67 | 74.54 | 59.88 | 48.45 | 67.88 | |||||||||||||
MIN | 26.16 | 32.96 | 43.68 | 55.34 | 65.35 | 77.64 | 85.97 | 82.14 | 70.85 | 55.07 | 41.17 | 28.97 | 60.09 | |||||||||||||
YRS | 75 | 77 | 81 | 73 | 76 | 80 | 81 | 83 | 82 | 74 | 74 | 75 | 50 |