YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.70 | t | 75.05 | 72.03 | 66.75 | 55.06 | 50.47 | 36.53 | 59.32 | f | ||||||
1950 | 41.56 | 44.61 | 45.84 | 54.98 | 62.84 | 74.15 | 72.10 | 72.15 | 65.35 | 62.16 | 45.68 | 39.58 | a | 56.75 | ||||||||||||
1951 | 34.61 | 39.82 | 44.43 | a | 52.47 | 62.94 | 71.75 | 76.85 | 74.97 | 67.98 | 57.08 | 42.10 | 37.44 | 55.20 | ||||||||||||
1952 | 37.60 | 41.36 | 43.32 | 53.82 | 64.40 | 77.03 | 75.77 | 78.24 | 67.33 | 57.32 | 40.78 | 35.82 | 56.07 | |||||||||||||
1953 | 44.40 | 38.91 | 50.61 | 54.42 | 62.00 | 78.40 | 76.74 | 74.20 | a | 69.07 | 57.63 | 46.72 | 35.52 | 57.38 | ||||||||||||
1954 | 39.44 | 47.80 | 45.90 | 60.57 | 62.08 | 74.57 | 79.52 | 75.85 | 71.53 | 59.47 | 48.15 | 41.29 | 58.85 | |||||||||||||
1955 | 36.92 | 38.29 | 47.79 | 56.19 | a | 64.00 | 71.45 | 74.63 | 74.31 | 70.25 | 59.35 | 45.27 | 43.06 | 56.79 | ||||||||||||
1956 | 40.24 | 35.62 | 49.58 | 54.08 | 67.53 | 75.35 | 75.53 | 74.05 | 70.05 | 59.61 | 43.77 | 41.15 | 57.21 | |||||||||||||
1957 | 39.08 | 49.02 | 47.50 | 52.30 | 60.55 | 71.66 | a | 78.29 | 74.32 | 66.28 | 55.50 | 41.18 | 42.03 | 56.48 | ||||||||||||
1958 | 34.44 | 40.84 | 39.47 | 50.95 | 64.81 | 76.17 | 78.16 | 76.18 | 68.47 | 55.73 | 47.63 | 39.65 | 56.04 | |||||||||||||
1959 | 38.02 | 40.80 | 47.63 | 56.50 | 65.73 | 73.48 | 74.48 | 75.02 | 69.59 | a | 55.95 | 44.43 | 39.73 | 56.78 | ||||||||||||
1960 | 33.48 | 34.84 | 45.27 | a | 58.00 | 64.02 | 75.32 | 73.97 | 75.06 | 68.87 | 57.53 | 48.12 | 33.71 | 55.68 | ||||||||||||
1961 | 35.02 | 42.14 | 47.82 | 55.85 | 66.03 | 73.85 | 73.61 | 73.23 | 65.91 | a | 58.23 | 40.40 | 36.44 | 55.71 | ||||||||||||
1962 | 33.79 | 45.93 | 44.29 | 57.27 | 68.16 | 72.53 | 75.32 | 76.69 | 68.96 | c | 60.23 | 48.10 | 41.12 | a | 57.70 | |||||||||||
1963 | 33.40 | 42.73 | 49.45 | 61.59 | c | 66.65 | 71.38 | 77.82 | a | 75.19 | 70.18 | 63.19 | 48.90 | 36.39 | 58.07 | |||||||||||
1964 | 37.68 | 33.77 | a | 45.38 | a | 56.62 | a | 66.52 | 72.47 | 78.44 | 75.55 | 67.17 | 59.71 | 46.02 | 39.66 | 56.58 | ||||||||||
1965 | 42.03 | 38.91 | a | 40.05 | 58.18 | 64.71 | 71.77 | 76.74 | 73.56 | 67.72 | 58.40 | 52.80 | 42.84 | 57.31 | ||||||||||||
1966 | 31.58 | a | 36.84 | 50.23 | a | 56.67 | 65.32 | 72.10 | 80.03 | 72.82 | a | 69.59 | a | 57.37 | 51.50 | a | 37.48 | c | 56.79 | |||||||
1967 | 41.25 | a | 42.23 | b | 55.13 | a | 60.47 | 63.48 | 72.57 | 75.19 | 72.44 | 67.67 | 60.67 | a | 48.38 | 34.55 | a | 57.84 | ||||||||
1968 | 39.34 | 40.41 | a | 47.18 | 54.78 | a | 64.18 | 76.00 | a | 75.53 | 74.73 | 67.93 | 61.65 | a | 46.22 | a | 40.53 | 57.37 | ||||||||
1969 | 45.00 | 41.64 | 40.18 | 58.53 | a | 65.08 | 71.30 | 79.11 | 77.23 | 69.38 | 55.00 | a | 46.15 | 41.21 | 57.48 | |||||||||||
1970 | 35.50 | c | 45.02 | 43.63 | 53.65 | 65.71 | 71.25 | 76.82 | 76.29 | 68.17 | 53.84 | 47.47 | 45.50 | 56.90 | ||||||||||||
1971 | 41.10 | 40.86 | 48.66 | 56.35 | 63.66 | 75.12 | 76.24 | 70.68 | 66.45 | 58.60 | 47.64 | a | 39.26 | 57.05 | ||||||||||||
1972 | 39.47 | 43.40 | 54.13 | 60.31 | a | 64.37 | 73.52 | a | 74.31 | 72.05 | b | 68.32 | 57.55 | 39.03 | 37.65 | 57.01 | ||||||||||
1973 | 33.94 | 39.14 | 46.05 | 49.47 | 62.52 | 71.03 | 74.71 | 74.29 | 67.43 | 60.79 | b | 50.79 | b | 40.47 | b | 55.89 | ||||||||||
1974 | 39.23 | 41.98 | 53.94 | 57.04 | b | 70.42 | 75.07 | 76.85 | 72.90 | a | 62.62 | 59.05 | b | 44.46 | b | 37.13 | a | 57.56 | ||||||||
1975 | 38.37 | 37.85 | d | 46.98 | 53.59 | a | 62.19 | 72.52 | a | 72.65 | a | 74.05 | 64.69 | a | 59.42 | a | 46.65 | 41.05 | a | 55.83 | ||||||
1976 | 37.97 | 46.98 | a | 45.97 | 55.75 | 60.15 | a | 71.70 | 72.90 | 72.76 | 66.88 | a | 52.66 | 42.56 | d | 38.58 | 55.40 | |||||||||
1977 | 33.26 | 42.84 | 46.15 | a | 56.62 | 66.15 | 74.87 | c | 75.83 | b | 75.69 | d | 70.54 | b | 58.70 | d | 48.15 | 43.07 | a | 57.65 | ||||||
1978 | 32.60 | 34.70 | a | 48.28 | b | 59.56 | e | 64.93 | c | 75.04 | c | 78.77 | 74.12 | e | 66.78 | a | 57.16 | 45.81 | c | 35.33 | e | 56.09 | ||||
1979 | 31.98 | b | 41.41 | e | 47.58 | f | 54.14 | b | 60.80 | c | 68.04 | d | 75.68 | c | 72.80 | d | 67.81 | d | 62.06 | d | 41.10 | d | 39.96 | f | 57.58 | b |
1980 | 38.93 | i | 41.94 | b | 45.10 | f | 52.88 | b | 62.12 | e | 77.62 | e | 78.82 | 74.81 | b | 68.98 | 55.72 | a | 43.72 | 45.09 | c | 60.17 | b | |||
1981 | 40.05 | b | 43.98 | a | 48.08 | 59.95 | a | 64.38 | b | 74.90 | 75.37 | a | 72.05 | b | 67.70 | 55.87 | d | 50.21 | a | 41.84 | 57.86 | |||||
1982 | 39.35 | h | 37.93 | f | 49.00 | i | 54.11 | h | 62.40 | f | 70.82 | h | 75.14 | f | 76.02 | d | 69.96 | f | 58.02 | b | 45.67 | f | 39.77 | k | 67.02 | j |
1983 | 35.87 | d | 40.68 | f | 47.38 | b | 49.89 | g | 59.89 | m | 68.18 | h | 72.24 | j | 75.73 | c | 71.62 | 59.79 | c | 51.28 | c | 37.35 | k | 56.94 | f | |
1984 | 37.33 | h | 46.39 | f | 48.98 | j | 55.38 | e | 67.35 | a | 73.15 | d | 76.14 | b | 74.08 | a | 67.63 | g | 54.96 | c | 47.96 | e | 39.54 | g | 64.15 | e |
1985 | 33.62 | a | 37.88 | d | 49.34 | c | 58.57 | g | 64.61 | c | 73.10 | 76.59 | c | 77.34 | b | 69.29 | b | 57.47 | a | 48.91 | c | 36.81 | b | 56.81 | a | |
1986 | 45.08 | a | 42.12 | 52.85 | 59.77 | 65.32 | 72.81 | a | 77.52 | 73.95 | 67.98 | b | 56.03 | 43.52 | 36.92 | 57.82 | ||||||||||
1987 | 35.45 | 42.75 | 45.07 | a | 55.28 | c | 64.10 | 73.20 | 77.48 | a | 74.44 | 67.85 | 59.97 | 46.05 | 35.79 | 56.45 | ||||||||||
1988 | 34.39 | 42.60 | 47.27 | 54.60 | 62.50 | 70.77 | 73.94 | 75.66 | c | 66.71 | d | 61.53 | 49.66 | b | 38.12 | c | 56.48 | |||||||||
1989 | 41.72 | b | 37.69 | a | 54.15 | 60.70 | 69.18 | f | 71.05 | b | 75.45 | 74.17 | a | 66.38 | b | 59.47 | b | 46.40 | d | 34.95 | 56.56 | a | ||||
1990 | 36.65 | 42.98 | a | 48.08 | a | 56.43 | a | 62.88 | b | 79.95 | 75.13 | 72.95 | 69.97 | 58.69 | 48.69 | a | 35.69 | b | 57.34 | |||||||
1991 | 33.90 | b | 45.26 | a | 49.15 | a | 57.82 | 67.55 | 74.56 | e | 73.77 | a | 73.44 | 65.02 | a | 57.98 | a | 43.76 | a | 39.97 | a | 56.85 | ||||
1992 | 36.67 | a | 45.18 | a | 50.82 | c | 58.83 | a | 63.42 | 71.37 | 76.48 | b | 73.43 | a | 70.22 | g | 60.58 | a | 43.95 | 34.92 | s | 58.07 | b | |||
1993 | 39.62 | c | 36.09 | a | 48.82 | a | 58.21 | d | 64.70 | a | 74.64 | a | 79.11 | c | 74.95 | b | 68.14 | b | 57.72 | a | 44.28 | 41.07 | b | 57.28 | ||
1994 | 36.25 | i | 39.15 | d | 47.42 | a | 54.73 | d | 64.22 | a | 78.92 | 78.41 | c | 77.00 | 70.77 | ----- | z | 48.02 | 41.42 | a | 60.00 | b | ||||
1995 | 40.43 | a | 47.07 | ----- | z | 54.80 | 62.55 | b | 70.92 | 77.97 | 77.22 | a | 71.33 | d | 60.53 | 51.98 | b | 42.55 | 59.76 | a | ||||||
1996 | 40.77 | a | 47.07 | a | 46.22 | b | 59.66 | b | 72.29 | 76.24 | a | 78.27 | a | 75.50 | 67.12 | 60.52 | 49.26 | a | 44.52 | 59.79 | ||||||
1997 | 34.19 | b | 37.06 | c | 52.60 | 49.41 | a | 64.63 | 73.93 | 79.05 | 76.82 | 73.67 | a | 60.44 | 45.08 | d | 36.84 | 56.98 | ||||||||
1998 | 42.79 | e | 45.45 | f | 48.17 | d | 56.92 | d | 70.97 | 79.05 | b | 79.52 | 74.53 | 74.52 | 63.11 | d | 49.82 | 41.97 | b | 61.94 | a | |||||
1999 | 43.89 | 46.98 | a | 51.45 | a | 53.67 | d | 65.65 | a | 74.11 | b | 76.89 | 76.08 | a | 68.11 | c | 57.90 | 51.34 | a | 39.81 | 58.82 | |||||
2000 | 43.93 | c | 51.07 | 50.46 | d | 61.27 | b | 72.36 | b | 75.52 | e | 77.98 | a | 78.29 | c | 73.57 | 58.87 | 40.46 | c | 36.27 | 60.00 | |||||
2001 | 34.21 | 44.17 | a | 47.79 | ----- | z | 61.95 | 69.88 | 80.85 | 77.77 | c | 71.25 | 62.95 | b | 49.40 | a | 39.02 | a | 58.11 | a | ||||||
2002 | 42.50 | 40.50 | c | 49.92 | 66.45 | a | 67.68 | c | 79.14 | a | 77.37 | 79.98 | b | 69.62 | a | 54.84 | 45.62 | b | 35.72 | a | 59.11 | |||||
2003 | 41.12 | b | 38.11 | a | 49.98 | a | 57.98 | 68.47 | a | 72.26 | i | 78.71 | j | 77.08 | l | 69.17 | i | 62.50 | h | 50.03 | l | 40.57 | b | 49.37 | f | |
2004 | 39.48 | a | 37.69 | 51.45 | b | 54.12 | 66.85 | a | 73.21 | a | 75.17 | a | 71.58 | 67.52 | 57.52 | 43.15 | 40.10 | b | 56.49 | |||||||
2005 | 41.48 | b | 42.29 | 45.37 | 55.03 | 63.94 | 75.13 | 77.27 | 73.84 | 72.02 | a | 58.13 | 49.88 | 39.22 | a | 57.80 | ||||||||||
2006 | 42.47 | a | 40.79 | 48.15 | 59.80 | 67.95 | a | 75.78 | 77.34 | 73.06 | 62.75 | 54.63 | 46.41 | b | 35.89 | c | 57.08 | |||||||||
2007 | 29.65 | 40.05 | 49.26 | 50.95 | b | 60.69 | 70.30 | 74.94 | 77.07 | a | 70.35 | 60.23 | 46.50 | 37.40 | a | 55.61 | ||||||||||
2008 | 34.26 | 41.16 | a | 46.47 | a | 53.34 | a | 62.97 | 75.55 | 73.29 | 73.27 | 65.50 | 55.97 | a | 47.16 | a | 37.80 | c | 55.56 | |||||||
2009 | 38.64 | b | 44.23 | 47.84 | b | 53.73 | b | 62.65 | a | 72.80 | 74.74 | 74.08 | 64.00 | 52.34 | 46.12 | 33.14 | b | 55.36 | ||||||||
2010 | 36.60 | 34.88 | 46.13 | 56.30 | 63.00 | 77.67 | 76.11 | 76.69 | 73.18 | 59.76 | 45.68 | 41.61 | 57.30 | |||||||||||||
2011 | 35.76 | 36.50 | 51.16 | 58.05 | 63.50 | 77.85 | 80.24 | 80.16 | 69.23 | 58.13 | 45.27 | 32.48 | 57.36 | |||||||||||||
2012 | 40.60 | 39.05 | 51.35 | 59.82 | 65.53 | 75.83 | 77.42 | 76.00 | 68.68 | 57.06 | 50.35 | 40.34 | 58.50 | |||||||||||||
2013 | 35.26 | 37.82 | 46.85 | 52.27 | 63.82 | 75.19 | a | 73.84 | 75.26 | 68.82 | 55.05 | 41.80 | 34.71 | 55.06 | ||||||||||||
2014 | 34.52 | 38.16 | 45.03 | 53.52 | 62.27 | 73.18 | 75.15 | 75.05 | 66.88 | 59.77 | 40.03 | 37.11 | 55.06 | |||||||||||||
2015 | 30.60 | 38.70 | 45.65 | 53.82 | 59.24 | 72.15 | 75.63 | 74.82 | 72.67 | 58.24 | 44.65 | 38.90 | 55.42 | |||||||||||||
2016 | 35.55 | 42.57 | 49.21 | 53.43 | 60.05 | 72.90 | 78.85 | 72.71 | 67.07 | 61.48 | 49.33 | 35.53 | 56.56 | |||||||||||||
2017 | 36.26 | 45.73 | 51.71 | 55.43 | 61.16 | 74.10 | 76.95 | 71.10 | 66.68 | 56.37 | 50.23 | 38.19 | 56.99 | |||||||||||||
2018 | 35.52 | 40.23 | 49.34 | 52.52 | 69.35 | 76.13 | 76.74 | 74.31 | 68.73 | 56.11 | 42.55 | 37.85 | 56.62 | |||||||||||||
2019 | 37.92 | 41.32 | 45.60 | 55.93 | 63.08 | 72.63 | 78.26 | 78.56 | 74.03 | 52.16 | 43.05 | 39.58 | 56.84 | |||||||||||||
2020 | 38.23 | 38.00 | 50.92 | 53.83 | 67.23 | 75.60 | 79.35 | 78.79 | 65.92 | 56.10 | 50.37 | 38.29 | 57.72 | |||||||||||||
2021 | 36.42 | 35.27 | 47.15 | 53.52 | 63.66 | 74.82 | 73.85 | a | 74.24 | 72.30 | g | 61.27 | 49.72 | 45.72 | a | 55.97 | a | |||||||||
2022 | 36.55 | 35.00 | 46.50 | 57.27 | 68.08 | 76.12 | b | 80.69 | 74.69 | 70.87 | 56.79 | 43.71 | a | 37.74 | 57.00 | |||||||||||
2023 | 38.24 | 39.73 | 46.50 | 53.77 | 64.48 | f | 72.77 | 79.42 | 78.65 | 71.22 | 58.47 | 47.87 | 42.18 | 57.16 | a | |||||||||||
2024 | 33.56 | 44.00 | 47.42 | 55.04 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.66 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.56 | 41.04 | 47.93 | 56.03 | 64.67 | 74.03 | 76.60 | 74.91 | 68.59 | 58.15 | 46.43 | 38.89 | 56.96 | |||||||||||||
S.D. | 3.65 | 3.77 | 3.13 | 3.12 | 2.79 | 2.44 | 2.07 | 2.04 | 2.52 | 2.52 | 3.27 | 2.99 | 1.10 | |||||||||||||
SKEW | 0.15 | 0.26 | -0.18 | 0.46 | 0.67 | 0.28 | 0.01 | 0.42 | 0.17 | -0.18 | -0.25 | 0.18 | 0.50 | |||||||||||||
MAX | 45.08 | 51.07 | 55.13 | 66.45 | 72.36 | 79.95 | 80.85 | 80.16 | 74.52 | 63.19 | 52.80 | 45.72 | 60.00 | |||||||||||||
MIN | 29.65 | 33.77 | 39.47 | 49.41 | 59.24 | 68.04 | 72.10 | 70.68 | 62.62 | 52.16 | 39.03 | 32.48 | 55.06 | |||||||||||||
YRS | 71 | 71 | 70 | 70 | 70 | 71 | 72 | 74 | 70 | 73 | 73 | 70 | 59 |