YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.73 | q | 38.27 | 38.27 | k | |
1955 | 35.73 | 37.32 | 38.48 | 42.00 | 50.29 | 58.88 | a | 60.73 | 65.47 | 60.80 | 52.65 | 39.04 | b | 39.03 | 48.37 | |||||||||||
1956 | 37.69 | 34.62 | 38.90 | 48.53 | 55.35 | a | 57.07 | 68.05 | 64.56 | 62.22 | 49.84 | 43.08 | 39.32 | 49.94 | ||||||||||||
1957 | 31.05 | 39.30 | 42.63 | 48.65 | 56.18 | 61.37 | 64.24 | 63.35 | 65.45 | 51.66 | 42.52 | 40.47 | 50.57 | |||||||||||||
1958 | 40.02 | 44.59 | 42.60 | 46.93 | 60.45 | 63.12 | 70.45 | 70.50 | 61.08 | 56.03 | 44.02 | 43.97 | 53.65 | |||||||||||||
1959 | 40.50 | 39.43 | a | 43.31 | 49.60 | 51.07 | a | 59.65 | 67.55 | 65.74 | 57.90 | 54.02 | 45.03 | 40.23 | 51.17 | |||||||||||
1960 | 34.69 | 40.09 | 43.15 | 47.50 | 50.47 | 62.13 | 69.53 | 63.37 | 61.33 | a | 54.03 | 44.05 | 40.03 | 50.86 | ||||||||||||
1961 | 43.06 | 42.36 | 42.68 | 47.30 | 52.94 | 65.14 | a | 67.60 | 70.55 | 58.13 | 51.13 | 41.90 | 38.03 | 51.73 | ||||||||||||
1962 | 36.13 | 40.11 | 40.13 | 49.87 | 48.65 | 59.97 | 65.95 | a | 63.82 | 62.83 | 53.13 | 45.73 | 41.89 | 50.68 | ||||||||||||
1963 | 34.29 | 46.64 | 43.24 | 44.10 | a | 54.84 | 57.75 | 61.03 | 64.89 | 65.05 | 53.92 | 44.78 | 40.10 | 50.89 | ||||||||||||
1964 | 38.40 | 39.53 | 41.05 | 44.85 | 50.65 | 57.30 | 64.63 | 63.08 | 58.80 | 54.52 | 41.60 | 38.27 | 49.39 | |||||||||||||
1965 | 37.94 | 40.95 | 45.87 | 49.52 | 51.15 | 59.03 | 67.84 | 66.26 | 59.73 | 55.92 | 46.80 | 37.34 | 51.53 | |||||||||||||
1966 | 37.60 | 40.04 | 42.98 | 50.47 | 55.53 | 59.27 | 63.94 | 66.50 | 62.88 | 53.24 | 46.17 | 40.53 | 51.60 | |||||||||||||
1967 | 40.77 | 41.77 | 41.73 | 43.60 | 55.10 | 62.85 | 68.60 | 72.81 | 66.93 | 52.73 | 47.07 | 37.11 | 52.59 | |||||||||||||
1968 | 36.58 | 46.93 | a | 46.50 | 46.28 | 53.32 | 60.27 | 67.10 | a | 64.31 | 61.78 | 51.35 | 45.27 | 36.40 | 51.34 | |||||||||||
1969 | 32.23 | 37.48 | 44.21 | 47.42 | 57.79 | 62.43 | 64.90 | 64.21 | 61.58 | 50.37 | 46.33 | 42.26 | 50.93 | |||||||||||||
1970 | 40.21 | 44.59 | 44.39 | 43.87 | 54.69 | 64.35 | 67.98 | 67.32 | 57.50 | 52.15 | 45.90 | 37.47 | 51.70 | |||||||||||||
1971 | 36.15 | a | 39.34 | 39.35 | 45.53 | 53.24 | 55.98 | 65.53 | a | 68.82 | 58.62 | 49.69 | 42.32 | 37.00 | 49.30 | |||||||||||
1972 | 35.10 | 40.29 | 44.02 | 44.50 | 55.61 | 60.08 | 67.89 | 68.39 | 58.33 | 52.23 | 45.25 | 36.62 | b | 50.69 | ||||||||||||
1973 | 35.97 | a | 43.64 | 42.47 | 47.97 | 55.89 | 59.30 | 66.18 | 63.39 | 61.18 | 51.10 | 40.82 | b | 41.66 | 50.80 | |||||||||||
1974 | 35.18 | 38.98 | 42.50 | 46.47 | 50.85 | 60.70 | 64.24 | 66.48 | 66.75 | 54.95 | 45.23 | 41.47 | 51.15 | |||||||||||||
1975 | 39.85 | 39.23 | 41.02 | a | 42.95 | 51.98 | 57.24 | a | 64.87 | 62.33 | a | 64.66 | a | 52.22 | b | 42.08 | 40.52 | a | 49.91 | |||||||
1976 | 39.13 | 38.57 | a | 40.18 | 46.00 | 53.94 | 55.98 | 63.50 | 62.56 | 62.30 | 53.94 | 48.17 | 40.66 | 50.41 | ||||||||||||
1977 | 37.56 | 43.56 | a | 41.18 | a | 50.52 | a | 49.19 | 61.34 | a | 62.85 | 69.69 | 58.08 | 53.52 | 42.25 | 42.50 | a | 51.02 | ||||||||
1978 | 41.63 | 43.21 | 48.34 | 47.05 | 51.11 | 61.30 | 65.87 | 64.31 | 58.07 | 55.55 | 39.65 | 35.39 | 50.96 | |||||||||||||
1979 | 32.40 | 37.36 | 46.16 | 46.79 | a | 55.24 | 60.52 | a | 66.32 | 64.65 | 64.07 | 55.84 | 43.35 | 43.00 | a | 51.31 | ||||||||||
1980 | 36.84 | 43.09 | a | 42.73 | 49.11 | b | 51.52 | a | 55.21 | a | 65.05 | b | 62.00 | b | 59.90 | 54.76 | 46.42 | 41.48 | a | 50.67 | ||||||
1981 | 42.68 | 42.43 | 45.08 | 47.29 | a | 51.55 | 56.70 | b | 61.74 | b | 68.15 | 61.00 | a | 50.82 | a | 45.45 | 40.23 | a | 51.09 | |||||||
1982 | 36.21 | 38.83 | a | 43.17 | a | 45.14 | b | 53.91 | d | 60.90 | a | 62.65 | a | 64.62 | a | 59.63 | 52.28 | b | 42.12 | a | 39.65 | 49.92 | ||||
1983 | 41.19 | 42.95 | 45.87 | a | 48.00 | a | 56.24 | 56.96 | b | 59.98 | c | 65.65 | a | 59.10 | a | 53.02 | a | 45.62 | 34.60 | 50.76 | ||||||
1984 | 39.61 | d | 41.55 | a | 46.77 | c | 45.21 | a | 51.10 | b | 56.76 | a | 65.81 | 65.68 | 60.33 | a | 49.87 | 42.92 | 36.37 | 50.16 | ||||||
1985 | 37.87 | 36.76 | a | 41.53 | b | 49.90 | 53.88 | a | 61.19 | a | 70.02 | a | 64.92 | 57.02 | 51.19 | 36.08 | 35.39 | 49.65 | ||||||||
1986 | 42.81 | 41.27 | 48.21 | 47.05 | 53.97 | 63.57 | 61.71 | 69.44 | 57.69 | f | 55.40 | 45.13 | 40.63 | 51.74 | a | |||||||||||
1987 | 37.32 | 42.10 | b | 45.40 | 52.61 | b | 56.72 | b | 62.71 | b | 63.27 | 66.56 | 63.85 | 58.29 | b | 46.83 | a | 38.24 | 52.83 | |||||||
1988 | 36.98 | a | 42.36 | a | 44.94 | 49.38 | 52.85 | a | 59.46 | d | 66.68 | a | 66.89 | 63.20 | 59.73 | 45.43 | a | 40.25 | a | 52.35 | ||||||
1989 | 39.10 | a | 34.38 | c | 43.27 | e | 52.79 | a | 53.97 | b | 61.93 | a | 62.63 | 62.77 | 63.38 | b | 52.10 | ----- | z | 40.52 | a | 51.53 | a | |||
1990 | 40.64 | b | 37.00 | a | 46.44 | 52.25 | b | 52.85 | 59.33 | 68.66 | 67.34 | b | 65.00 | 51.15 | 44.73 | 32.62 | b | 51.50 | ||||||||
1991 | 36.93 | a | 46.48 | a | 43.19 | 46.70 | 50.95 | a | 55.71 | a | 67.26 | 67.92 | 65.68 | 54.98 | b | 46.25 | 41.56 | 51.97 | ||||||||
1992 | 41.76 | 46.28 | 50.47 | 52.15 | 60.52 | 64.46 | b | 66.55 | 68.40 | 61.12 | a | 54.82 | 44.70 | 37.43 | a | 54.06 | ||||||||||
1993 | 34.47 | a | 38.73 | b | 45.73 | 47.50 | 57.79 | 57.85 | 60.42 | 65.15 | 64.10 | 55.88 | a | 39.48 | 39.48 | a | 50.55 | |||||||||
1994 | 41.68 | 39.23 | 46.45 | 50.35 | 56.23 | a | 57.83 | 67.89 | 65.63 | 64.32 | 51.98 | a | 38.05 | 38.32 | a | 51.50 | ||||||||||
1995 | 42.31 | 44.39 | a | 44.35 | 47.97 | 56.40 | a | 60.18 | 66.76 | 64.02 | a | 64.65 | 52.77 | 48.97 | a | 42.15 | 52.91 | |||||||||
1996 | 39.84 | 39.22 | 45.24 | 49.20 | 51.89 | 60.27 | 69.05 | a | 68.63 | a | 60.52 | 52.56 | 44.22 | a | 39.00 | 51.64 | ||||||||||
1997 | 38.56 | 41.55 | 43.90 | 48.05 | 59.16 | b | 59.47 | 65.60 | 69.47 | 63.42 | 52.29 | 48.48 | 39.90 | 52.49 | ||||||||||||
1998 | 41.13 | 42.77 | 46.03 | a | 49.27 | 52.61 | 60.73 | 68.89 | 68.76 | 66.00 | 52.56 | 45.05 | 36.55 | 52.53 | ||||||||||||
1999 | 39.24 | 39.07 | 42.27 | 47.40 | 51.40 | a | 58.45 | 65.13 | 66.53 | a | 63.77 | 54.65 | a | 47.48 | 40.80 | a | 51.35 | |||||||||
2000 | 37.45 | a | 41.50 | 43.68 | 51.88 | 53.84 | 62.47 | a | 64.86 | b | 66.53 | a | 62.42 | 53.02 | c | 41.62 | 40.18 | 51.62 | ||||||||
2001 | 40.40 | b | 41.34 | 46.08 | 47.10 | a | 57.19 | 57.72 | 64.58 | 66.26 | 62.83 | a | 51.68 | 44.68 | 38.41 | b | 51.52 | |||||||||
2002 | 38.21 | 40.57 | a | 41.11 | 48.65 | 51.97 | 61.68 | b | 67.74 | 66.98 | a | 63.79 | a | 52.38 | a | 45.09 | a | 41.15 | a | 51.61 | ||||||
2003 | 43.35 | a | 40.89 | 44.95 | 46.77 | b | 54.87 | a | 63.12 | a | 69.52 | 68.87 | 64.22 | a | 55.28 | a | 41.25 | b | 39.90 | a | 52.75 | |||||
2004 | 36.92 | 41.93 | a | 48.10 | a | 52.58 | 55.07 | b | 61.77 | 69.35 | 69.16 | 59.85 | 53.60 | a | 44.35 | 41.48 | 52.85 | |||||||||
2005 | 39.10 | 41.86 | 47.05 | a | 49.03 | a | 56.08 | a | 57.21 | a | 67.93 | a | 69.34 | 59.71 | a | 53.35 | a | 42.47 | a | 37.76 | 51.74 | |||||
2006 | 39.93 | b | 38.70 | a | 41.63 | 49.30 | b | 56.41 | b | 62.47 | a | 68.66 | 66.53 | a | 61.28 | a | 51.73 | a | 42.71 | a | 38.05 | 51.45 | ||||
2007 | 35.38 | b | 39.71 | 43.40 | e | 47.55 | b | 55.05 | a | ----- | z | 65.84 | c | 64.90 | a | 59.12 | 48.32 | c | 42.59 | a | 37.23 | 49.01 | a | |||
2008 | 33.41 | d | 38.80 | a | 38.80 | c | 42.10 | a | 52.05 | b | 56.43 | a | 66.50 | 66.02 | b | 61.38 | a | 51.95 | c | 46.00 | b | 36.40 | g | 50.31 | a | |
2009 | 37.47 | a | 37.88 | c | 39.86 | b | 46.41 | a | 54.12 | c | 61.09 | a | 69.40 | ----- | z | 63.43 | 50.16 | 41.73 | 33.94 | 48.68 | a | |||||
2010 | ----- | z | 42.79 | 43.48 | 45.72 | 49.69 | 56.80 | 66.38 | a | 65.44 | 59.70 | 50.90 | 41.58 | 38.39 | 50.99 | a | ||||||||||
2011 | 36.21 | 36.34 | 39.24 | 41.83 | 48.05 | 56.95 | 61.76 | 66.32 | 64.52 | 51.53 | 41.00 | 36.34 | 48.34 | |||||||||||||
2012 | 36.95 | 39.17 | 38.29 | 47.07 | 52.35 | 55.08 | 63.87 | 66.92 | 62.95 | 51.61 | 43.35 | 36.74 | 49.53 | |||||||||||||
2013 | 33.26 | 38.18 | 43.31 | e | 47.60 | 54.87 | a | 60.38 | 68.58 | 67.87 | 59.75 | 49.31 | 41.31 | a | 34.19 | b | 49.88 | |||||||||
2014 | 38.34 | 37.02 | a | 44.63 | 48.68 | 56.45 | 58.82 | 69.42 | 71.00 | 64.28 | 55.90 | 44.48 | 42.52 | 52.63 | ||||||||||||
2015 | 42.40 | 46.16 | 49.69 | 48.82 | 56.84 | 66.55 | 70.69 | 69.77 | 61.15 | 57.42 | 43.57 | a | 39.90 | 54.41 | ||||||||||||
2016 | 39.85 | 44.17 | 44.97 | 54.47 | 56.87 | 62.53 | 65.55 | 68.76 | 59.72 | 51.44 | 47.93 | 34.76 | 52.58 | |||||||||||||
2017 | 33.50 | 39.04 | 42.89 | 46.68 | 55.48 | 61.70 | 69.19 | 72.34 | 67.95 | t | 51.50 | b | 46.58 | x | 39.92 | 51.22 | b | |||||||||
2018 | 41.72 | a | 36.11 | s | 42.44 | 49.52 | 59.87 | a | 61.60 | 71.44 | 70.57 | b | 60.45 | 53.65 | 48.15 | 41.37 | 54.61 | a | ||||||||
2019 | 42.16 | 35.63 | a | 44.08 | 53.73 | 58.10 | 62.18 | 65.22 | a | 68.18 | 59.92 | 48.84 | b | 44.97 | 40.58 | 51.97 | ||||||||||
2020 | 39.00 | 40.84 | 42.97 | 50.12 | 56.87 | 61.48 | a | 69.21 | 69.11 | 64.75 | 54.65 | 43.28 | 41.53 | a | 52.82 | |||||||||||
2021 | 40.82 | 38.45 | 43.19 | 50.32 | 54.80 | a | 66.33 | 70.15 | 69.10 | 61.65 | 50.74 | 46.05 | 38.29 | 52.49 | ||||||||||||
2022 | 37.77 | 39.41 | 44.95 | 43.07 | 49.63 | 59.43 | 69.16 | 71.03 | 66.05 | 57.58 | 41.00 | 36.23 | 51.28 | |||||||||||||
2023 | 39.18 | 36.71 | 38.35 | 44.47 | 58.19 | 61.98 | 69.82 | 70.92 | 61.15 | 53.73 | 45.40 | 43.23 | 51.93 | |||||||||||||
2024 | 37.79 | 41.34 | 43.08 | 48.41 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.74 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 38.23 | 40.56 | 43.55 | 47.81 | 54.14 | 60.12 | 66.35 | 66.88 | 61.88 | 53.00 | 43.98 | 39.08 | 51.34 | |||||||||||||
S.D. | 2.88 | 2.88 | 2.68 | 2.81 | 2.89 | 2.68 | 2.78 | 2.58 | 2.51 | 2.27 | 2.60 | 2.47 | 1.24 | |||||||||||||
SKEW | -0.30 | 0.25 | 0.11 | 0.02 | 0.07 | 0.12 | -0.41 | 0.15 | 0.06 | 0.50 | -0.49 | -0.40 | -0.05 | |||||||||||||
MAX | 43.35 | 46.93 | 50.47 | 54.47 | 60.52 | 66.55 | 71.44 | 72.81 | 66.93 | 59.73 | 48.97 | 43.97 | 54.41 | |||||||||||||
MIN | 31.05 | 34.38 | 38.29 | 41.83 | 48.05 | 55.08 | 59.98 | 62.00 | 57.02 | 48.32 | 36.08 | 32.62 | 48.34 | |||||||||||||
YRS | 69 | 69 | 70 | 69 | 69 | 68 | 69 | 68 | 67 | 69 | 67 | 69 | 61 |