YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1957 | ----- | z | ----- | z | 40.72 | f | 45.98 | a | 53.87 | 62.70 | 65.32 | a | 62.65 | 60.48 | 44.65 | a | 34.84 | b | 34.43 | a | 51.66 | c | ||||
1958 | 32.66 | 39.70 | 35.47 | 44.32 | 58.58 | 59.87 | 68.55 | 70.35 | 57.72 | 52.68 | 40.39 | b | 41.31 | 50.13 | ||||||||||||
1959 | 37.18 | a | 34.62 | 40.26 | 48.18 | 48.40 | 62.00 | 70.13 | 64.40 | 55.12 | 50.79 | 38.98 | b | 30.82 | 48.41 | |||||||||||
1960 | 28.06 | 32.54 | a | 41.73 | 45.78 | 49.65 | 62.85 | 71.74 | 64.00 | 59.60 | a | 48.95 | 36.22 | 33.18 | 47.86 | |||||||||||
1961 | 34.76 | 38.13 | a | 39.68 | a | 45.12 | 51.47 | 66.17 | 69.48 | 69.69 | 54.17 | 48.24 | 35.37 | 31.55 | 48.65 | |||||||||||
1962 | 24.33 | a | 31.18 | 36.44 | 49.27 | 50.05 | 60.52 | 66.84 | 64.81 | 62.03 | 49.27 | a | 41.60 | 36.52 | 47.74 | |||||||||||
1963 | 28.29 | 43.05 | 39.05 | 40.50 | 54.38 | a | 58.57 | 63.48 | 65.69 | 63.42 | 50.82 | 39.05 | b | 34.73 | 48.42 | |||||||||||
1964 | 31.73 | 34.03 | 37.21 | 41.86 | a | 50.37 | 57.98 | a | 68.77 | 65.02 | 56.98 | 52.08 | 36.93 | 32.73 | 47.14 | |||||||||||
1965 | 32.50 | 37.23 | 39.45 | b | 46.88 | a | 50.92 | 60.71 | a | 66.77 | 65.13 | a | 54.43 | 54.55 | a | 40.55 | 30.92 | 48.34 | ||||||||
1966 | 32.81 | 33.93 | 40.77 | 47.30 | 56.90 | 58.43 | a | 64.79 | 67.05 | 62.60 | 50.31 | 41.24 | a | 36.02 | 49.35 | |||||||||||
1967 | 35.19 | 38.80 | 37.23 | 37.98 | 52.97 | a | 61.37 | 71.18 | 71.92 | 63.05 | 49.63 | 41.22 | 30.20 | a | 49.23 | |||||||||||
1968 | 32.19 | 40.74 | 42.65 | 44.22 | 52.58 | 62.00 | a | 71.27 | 63.50 | 59.40 | 48.95 | a | 38.57 | 32.27 | a | 49.03 | ||||||||||
1969 | 30.45 | 32.16 | 38.34 | 44.05 | 57.23 | 61.50 | 67.47 | 66.52 | 59.98 | 42.44 | 38.17 | 35.42 | a | 47.81 | ||||||||||||
1970 | 34.53 | 39.06 | a | 39.69 | 39.97 | 53.90 | 62.90 | 70.15 | 68.66 | 54.80 | 47.02 | 39.32 | 27.82 | 48.15 | ||||||||||||
1971 | 34.06 | 35.59 | 34.03 | 43.88 | 51.44 | 57.73 | 69.44 | 71.16 | 54.95 | 44.73 | 38.57 | 28.18 | 46.98 | |||||||||||||
1972 | 30.31 | 37.05 | 44.06 | 41.85 | 55.26 | 63.22 | 69.13 | 68.16 | 55.15 | 48.03 | a | 36.66 | b | 27.77 | a | 48.05 | ||||||||||
1973 | 30.57 | a | 36.77 | 37.79 | 45.85 | 57.02 | 62.05 | 69.71 | 66.35 | 58.12 | 48.27 | 38.35 | 36.81 | 48.97 | ||||||||||||
1974 | 28.10 | 35.48 | 39.34 | 43.28 | 51.23 | 63.75 | l | 67.34 | b | 66.37 | 62.62 | 49.34 | 40.30 | 32.92 | a | 46.94 | a | |||||||||
1975 | 33.61 | 33.29 | 36.35 | a | 39.03 | a | 52.18 | a | 58.73 | 69.47 | 63.44 | 62.02 | 46.73 | 35.35 | 35.39 | 47.13 | ||||||||||
1976 | 35.27 | 35.47 | 35.71 | 41.57 | 54.13 | 57.80 | 68.82 | 61.37 | 61.92 | 49.45 | 41.98 | 31.37 | 47.91 | |||||||||||||
1977 | 25.23 | 37.88 | 36.56 | 47.03 | 46.85 | 65.08 | 67.23 | 69.82 | 57.62 | 48.47 | 39.48 | 35.92 | 48.10 | |||||||||||||
1978 | 37.71 | b | 38.55 | 45.18 | 43.45 | 49.84 | 59.85 | 68.26 | 65.45 | 55.88 | 51.79 | 34.70 | 28.83 | a | 48.29 | |||||||||||
1979 | 24.98 | 35.20 | a | 42.52 | 44.18 | 55.05 | 61.60 | 69.06 | 65.33 | a | 62.87 | 51.97 | 35.33 | 36.75 | a | 48.74 | ||||||||||
1980 | 31.97 | 40.36 | 38.26 | 47.63 | 53.06 | 57.00 | 69.50 | 64.22 | a | 60.63 | 50.65 | 40.67 | 35.10 | 49.09 | ||||||||||||
1981 | 34.48 | 35.48 | 41.19 | 48.15 | 52.66 | 61.35 | 67.15 | 70.15 | 60.62 | 46.74 | 40.40 | 37.09 | b | 49.62 | ||||||||||||
1982 | 29.64 | c | 34.60 | b | 37.92 | 41.88 | 53.77 | 62.86 | a | 67.08 | 68.34 | 57.84 | a | 48.79 | 33.64 | a | 30.73 | 47.26 | ||||||||
1983 | 36.83 | a | 38.93 | a | 41.43 | a | 42.82 | 54.85 | 59.15 | 64.84 | 68.16 | 58.57 | 52.24 | 39.72 | 30.30 | a | 48.99 | |||||||||
1984 | 31.77 | 36.88 | 42.48 | 43.85 | 54.00 | 58.52 | 71.05 | 69.55 | a | 59.35 | 45.79 | 38.10 | 28.45 | a | 48.32 | |||||||||||
1985 | 26.78 | b | 32.59 | 38.11 | 50.28 | 54.50 | 64.03 | ----- | z | 66.38 | a | 53.80 | 47.76 | 31.74 | a | 31.60 | a | 45.23 | a | |||||||
1986 | 40.48 | c | 40.46 | 46.12 | a | 46.52 | 54.63 | a | 67.00 | a | 65.58 | 71.89 | 53.83 | 50.98 | 41.57 | a | 32.34 | 50.95 | ||||||||
1987 | 31.44 | 37.32 | 42.18 | 52.92 | 57.24 | 64.67 | 64.50 | g | 67.67 | a | 63.42 | 54.28 | a | 39.47 | 32.32 | a | 49.36 | a | ||||||||
1988 | 28.39 | c | 39.43 | a | 42.79 | 50.23 | 53.39 | d | 63.18 | b | 71.77 | 68.31 | 60.03 | 57.03 | 39.53 | 31.50 | 50.47 | |||||||||
1989 | 31.37 | a | 26.13 | a | 42.58 | e | 51.42 | 53.73 | 65.27 | b | 69.42 | a | 65.52 | 59.19 | a | 49.13 | a | 40.53 | a | 33.61 | 48.99 | |||||
1990 | 36.61 | 33.93 | a | 42.63 | 53.43 | a | 52.55 | 62.52 | a | 72.32 | a | 69.06 | 64.83 | 51.40 | a | 42.37 | 27.98 | b | 50.80 | |||||||
1991 | 33.34 | 43.39 | 38.11 | 45.29 | a | 50.84 | 58.63 | 71.32 | c | 69.71 | e | 63.79 | a | 52.15 | 41.22 | a | 33.80 | a | 50.13 | |||||||
1992 | 34.81 | 40.89 | a | 44.45 | c | 51.93 | c | 61.81 | b | 66.09 | b | 68.07 | b | 70.48 | b | 60.98 | a | 53.72 | a | 38.21 | a | 30.38 | b | 51.82 | ||
1993 | 24.79 | 28.75 | 44.32 | 46.02 | a | 57.10 | 59.16 | a | 61.83 | a | 66.42 | a | 61.86 | a | 51.19 | 34.57 | 33.95 | 47.50 | ||||||||
1994 | 36.85 | 34.63 | b | 44.61 | 49.88 | 57.00 | d | 63.13 | 73.34 | 68.80 | a | 62.90 | 50.02 | c | 32.83 | a | 33.27 | a | 50.61 | |||||||
1995 | 36.03 | a | 43.27 | 39.63 | a | 44.88 | b | 54.77 | 59.02 | c | 68.33 | a | 66.35 | 64.18 | b | 50.24 | b | 45.62 | 35.76 | 50.67 | ||||||
1996 | 35.87 | a | 38.41 | a | 42.65 | 47.91 | c | 52.40 | 62.63 | 72.87 | 70.39 | 58.57 | 49.05 | b | 41.47 | 36.63 | a | 50.74 | ||||||||
1997 | 35.11 | 34.62 | 44.40 | 46.15 | 59.65 | 60.52 | b | 68.89 | 69.73 | 61.65 | 49.48 | a | 41.90 | 31.84 | 50.33 | |||||||||||
1998 | 38.09 | b | 37.09 | 41.84 | 45.27 | 49.80 | a | 60.55 | 72.68 | a | 70.97 | b | 64.72 | a | 48.13 | 39.72 | 31.55 | a | 50.03 | |||||||
1999 | 34.66 | 34.36 | 39.37 | 45.23 | 52.42 | a | 61.27 | 68.10 | 68.22 | a | 60.82 | 52.82 | a | 45.62 | 34.00 | 49.74 | ||||||||||
2000 | 34.61 | 39.62 | a | 40.87 | a | 50.58 | 54.97 | b | 65.08 | 67.92 | 69.21 | 58.80 | 48.29 | 33.78 | 33.92 | 49.80 | ||||||||||
2001 | 33.10 | 34.86 | 43.76 | 43.50 | a | 58.70 | a | 61.63 | 68.68 | ----- | z | 62.73 | 53.02 | 40.66 | a | 34.18 | 48.62 | a | ||||||||
2002 | 34.23 | 39.25 | 40.39 | 49.29 | a | 54.77 | 66.10 | 72.35 | 65.98 | a | 61.40 | 47.58 | 40.29 | a | 36.63 | 50.69 | ||||||||||
2003 | 38.53 | a | 35.98 | a | 44.21 | 43.33 | 55.22 | b | 66.15 | 74.30 | a | 70.13 | 64.15 | 55.43 | a | 37.07 | 36.47 | 51.75 | ||||||||
2004 | 35.50 | a | 36.98 | 47.94 | 50.07 | 54.82 | a | 63.97 | 72.35 | 70.00 | 59.74 | a | 49.33 | a | 38.63 | 35.73 | 51.25 | |||||||||
2005 | 33.37 | a | 36.43 | 43.42 | 47.37 | c | 54.77 | a | 58.45 | 72.34 | 70.60 | a | 60.05 | a | 51.55 | 37.53 | 30.45 | b | 49.69 | |||||||
2006 | 37.11 | 34.91 | 37.47 | a | 46.90 | a | 57.11 | 66.58 | 74.48 | 67.74 | 61.55 | 48.77 | 40.75 | 33.24 | 50.55 | |||||||||||
2007 | 30.00 | 36.73 | 46.47 | 47.89 | b | 57.45 | 64.17 | 74.48 | 68.95 | 58.92 | 48.11 | 40.42 | 31.55 | a | 50.43 | |||||||||||
2008 | 30.03 | 37.78 | 38.90 | 43.97 | 55.47 | 61.47 | 71.12 | a | 69.87 | 61.92 | 51.48 | 42.72 | 30.65 | 49.61 | ||||||||||||
2009 | 34.63 | 36.62 | 39.40 | 45.88 | 57.71 | 61.64 | a | 72.23 | 68.42 | 64.05 | 47.77 | 39.25 | 29.39 | 49.75 | ||||||||||||
2010 | 38.97 | 37.91 | 41.27 | 44.03 | 49.13 | 60.93 | 70.03 | b | 67.79 | b | 61.38 | 52.39 | 37.91 | a | 35.53 | 49.77 | ||||||||||
2011 | 34.39 | 32.93 | 39.66 | 42.82 | 49.34 | 59.72 | 68.10 | 69.85 | 64.90 | 50.85 | 37.02 | 30.05 | 48.30 | |||||||||||||
2012 | 34.63 | 34.88 | 39.82 | 48.80 | 54.66 | 59.97 | 70.21 | 70.21 | 63.93 | 50.76 | 41.97 | 32.32 | 50.18 | |||||||||||||
2013 | 26.73 | 34.64 | 42.29 | 47.18 | 55.35 | 63.55 | 73.29 | 67.23 | 60.45 | 44.73 | 38.38 | 26.02 | 48.32 | |||||||||||||
2014 | 33.45 | 37.62 | 42.92 | 46.83 | 55.55 | 61.47 | 73.47 | 67.50 | 61.69 | a | 52.13 | 38.50 | 35.79 | 50.58 | ||||||||||||
2015 | 34.98 | 40.20 | 45.50 | 45.82 | 54.71 | 68.98 | 69.61 | 69.35 | 60.62 | 54.10 | 33.16 | a | 31.48 | 50.71 | ||||||||||||
2016 | 31.79 | 40.72 | 41.63 | 50.82 | 54.55 | 63.43 | 67.80 | c | 71.30 | a | 58.79 | d | 50.00 | 43.37 | 30.29 | 50.37 | ||||||||||
2017 | 26.55 | 37.21 | 44.37 | a | 45.42 | 57.39 | 64.75 | 72.97 | 71.52 | 61.16 | a | 47.27 | 39.50 | 30.73 | 49.90 | |||||||||||
2018 | 37.66 | 32.96 | b | 37.66 | 48.77 | b | 60.27 | a | 63.37 | 73.55 | 70.45 | a | 60.55 | 50.35 | 39.72 | 34.03 | 50.78 | |||||||||
2019 | 36.00 | 30.57 | 38.81 | 50.45 | a | 55.87 | 63.35 | 69.90 | 71.68 | 60.03 | 45.76 | 40.87 | 33.95 | 49.77 | ||||||||||||
2020 | 38.02 | 38.69 | 40.10 | 49.72 | 56.45 | 62.62 | f | 70.52 | j | 72.31 | d | 65.25 | h | 53.70 | c | 38.98 | b | 34.15 | d | 46.90 | c | |||||
2021 | 35.70 | a | 37.80 | a | 39.73 | c | 48.96 | b | 57.46 | e | ----- | z | 73.93 | p | 71.25 | a | 62.94 | d | 51.03 | a | 43.00 | 34.78 | b | 48.27 | b | |
2022 | 35.18 | a | 36.31 | b | 44.95 | b | 44.28 | c | 51.60 | 63.00 | a | 74.52 | 74.63 | a | 65.52 | a | 55.43 | b | 27.27 | b | 30.16 | 50.24 | ||||
2023 | 31.40 | b | 33.85 | b | 34.55 | a | 45.97 | 58.47 | a | 63.24 | a | 73.50 | c | 70.56 | 60.48 | e | 52.33 | a | 40.47 | 37.62 | a | 50.20 | ||||
2024 | 38.35 | a | 39.70 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 39.03 | j |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 33.12 | 36.52 | 40.77 | 46.15 | 54.27 | 62.05 | 69.77 | 68.24 | 60.34 | 50.04 | 38.85 | 32.88 | 49.39 | |||||||||||||
S.D. | 3.80 | 3.27 | 3.09 | 3.30 | 3.03 | 2.65 | 2.84 | 2.69 | 3.00 | 2.83 | 3.22 | 2.92 | 1.23 | |||||||||||||
SKEW | -0.54 | -0.39 | 0.01 | -0.06 | -0.07 | 0.21 | -0.34 | -0.34 | -0.55 | -0.08 | -0.85 | 0.07 | -0.17 | |||||||||||||
MAX | 40.48 | 43.39 | 47.94 | 53.43 | 61.81 | 68.98 | 74.52 | 74.63 | 65.52 | 57.03 | 45.62 | 41.31 | 51.82 | |||||||||||||
MIN | 24.33 | 26.13 | 34.03 | 37.98 | 46.85 | 57.00 | 61.83 | 61.37 | 53.80 | 42.44 | 27.27 | 26.02 | 46.98 | |||||||||||||
YRS | 67 | 67 | 66 | 67 | 67 | 64 | 63 | 66 | 66 | 67 | 67 | 67 | 60 |