YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.53 | b | 73.57 | a | 69.21 | b | 57.87 | a | 52.47 | 38.71 | 62.23 | f | ||
1967 | 40.74 | 41.77 | d | 55.32 | 64.12 | 66.21 | b | 75.40 | a | 76.60 | a | 74.21 | 66.84 | e | 60.37 | d | 48.88 | 37.00 | a | 58.95 | ||||||
1968 | 40.28 | a | 40.93 | 49.65 | d | 55.38 | 65.44 | 75.43 | 75.92 | 75.31 | 68.12 | 61.90 | 47.05 | 40.40 | a | 57.98 | ||||||||||
1969 | 44.02 | 42.02 | 40.90 | 60.20 | 68.17 | a | 74.58 | 81.92 | 79.37 | 69.82 | 55.15 | 48.38 | 43.47 | 59.00 | ||||||||||||
1970 | 36.73 | a | 44.09 | 44.60 | 57.62 | 68.50 | 75.32 | 79.94 | 78.19 | 70.43 | 55.31 | 47.71 | a | 45.18 | 58.63 | |||||||||||
1971 | 39.95 | 39.89 | a | 48.89 | 57.80 | 66.32 | 76.80 | 78.66 | 71.77 | 67.75 | 60.11 | 50.22 | 41.69 | 58.32 | ||||||||||||
1972 | 39.97 | 43.93 | 54.69 | 62.87 | 65.31 | 75.08 | ----- | z | 73.98 | 70.27 | 59.60 | 41.03 | 36.92 | 56.70 | a | |||||||||||
1973 | 34.00 | 39.30 | 48.52 | 52.30 | 64.61 | 74.33 | 76.97 | 76.50 | 69.17 | 63.16 | 51.72 | 41.72 | a | 57.69 | ||||||||||||
1974 | 38.73 | 43.20 | 55.90 | 60.60 | 71.65 | a | 76.27 | 79.60 | a | 73.28 | a | 62.03 | 58.87 | 47.90 | 39.55 | 58.96 | ||||||||||
1975 | 38.97 | 38.59 | a | 46.15 | 56.33 | 65.57 | a | 76.75 | 74.29 | 75.11 | 65.52 | 61.10 | a | 49.03 | 41.77 | 57.43 | ||||||||||
1976 | 38.42 | 49.76 | 50.16 | 61.60 | 64.35 | 75.30 | 74.52 | 76.71 | 68.45 | b | 52.92 | a | 42.05 | 39.52 | 57.81 | |||||||||||
1977 | 32.44 | 44.04 | a | 48.50 | 58.33 | 69.58 | 77.95 | 79.21 | 77.56 | 73.47 | 61.42 | 50.52 | 42.48 | b | 59.62 | |||||||||||
1978 | 31.65 | 33.39 | 49.61 | 63.25 | 67.56 | 76.80 | 80.34 | 75.66 | 69.07 | 58.92 | 46.40 | 35.31 | 57.33 | |||||||||||||
1979 | 28.27 | 38.27 | 46.42 | 57.33 | a | 64.33 | b | 71.36 | a | 77.52 | 73.50 | 70.38 | a | 61.98 | 42.48 | a | 39.34 | 55.93 | ||||||||
1980 | 38.53 | 40.93 | 46.53 | a | 55.31 | a | 64.82 | 80.57 | b | 82.05 | 78.67 | d | 71.22 | 57.88 | b | 45.71 | b | 44.37 | 58.88 | |||||||
1981 | 39.97 | 42.98 | 48.02 | a | 60.12 | 66.37 | 76.92 | 79.23 | 73.37 | 68.90 | 58.39 | 51.18 | 42.87 | 59.03 | ||||||||||||
1982 | 38.52 | b | 37.78 | c | 49.47 | b | 55.72 | a | 65.22 | a | 72.18 | b | 78.62 | a | 78.52 | 72.66 | a | 57.56 | 45.93 | c | 36.87 | 57.42 | ||||
1983 | 32.18 | 40.71 | 47.43 | a | 50.87 | d | 63.87 | a | 71.19 | a | 79.23 | 78.55 | 72.86 | a | 61.11 | 49.41 | b | 30.40 | b | 56.48 | ||||||
1984 | 35.82 | a | 42.29 | 46.15 | a | 54.80 | c | 67.45 | a | 74.72 | a | 75.92 | 74.98 | 67.31 | a | 55.53 | b | 47.48 | 40.86 | c | 56.94 | |||||
1985 | 34.26 | b | 38.86 | c | 50.93 | c | 60.98 | a | 67.78 | a | 72.71 | a | 77.11 | 78.97 | 69.97 | 57.60 | 47.98 | a | 35.52 | 57.72 | ||||||
1986 | ----- | z | 43.11 | 51.59 | b | 60.52 | 66.53 | 72.55 | 78.34 | 75.05 | 69.17 | 56.98 | 45.27 | 38.26 | 59.76 | a | ||||||||||
1987 | 36.00 | 42.43 | 44.48 | 54.98 | a | 66.18 | 73.58 | 77.58 | 74.81 | 67.50 | a | 59.68 | 47.38 | 36.11 | 56.73 | |||||||||||
1988 | 33.37 | 40.93 | 48.29 | 55.77 | b | 65.50 | a | 73.88 | 75.79 | 75.85 | 68.33 | 59.84 | 49.60 | 39.00 | 57.18 | |||||||||||
1989 | 41.52 | 37.88 | 51.18 | a | 61.03 | 69.58 | 71.38 | 76.90 | 74.82 | 66.17 | 60.42 | 47.62 | 33.40 | 57.66 | ||||||||||||
1990 | 39.81 | 43.54 | 47.52 | 57.47 | 65.21 | 82.18 | 75.76 | 74.70 | a | 70.79 | a | 58.84 | 50.02 | 36.73 | 58.55 | |||||||||||
1991 | 34.98 | a | 45.25 | 50.19 | 58.85 | 70.53 | 75.93 | a | 76.44 | 75.65 | 65.31 | a | 58.94 | 42.02 | a | 40.23 | a | 57.86 | ||||||||
1992 | 36.63 | 45.90 | 51.94 | 58.90 | 64.26 | 71.67 | a | 77.81 | b | 74.70 | a | 69.13 | 60.61 | d | 42.86 | b | 38.35 | 57.73 | ||||||||
1993 | 36.19 | d | 39.94 | a | 47.82 | c | ----- | z | 67.57 | b | 76.96 | b | 79.88 | b | 76.89 | c | 68.54 | d | 56.58 | a | 43.67 | c | 40.91 | b | 57.72 | a |
1994 | 38.90 | 39.25 | b | 49.95 | a | 57.43 | a | 66.03 | 80.03 | a | 79.87 | a | 77.03 | 70.13 | 59.52 | b | 48.23 | b | 42.62 | b | 59.08 | |||||
1995 | 40.07 | a | 46.69 | b | 49.21 | 55.71 | d | 65.00 | c | 75.09 | b | 79.47 | 77.38 | a | 68.47 | 58.79 | b | 49.37 | ----- | z | 60.48 | a | ||||
1996 | 37.72 | b | 45.93 | a | 46.88 | b | 57.71 | a | 74.62 | a | 77.98 | a | 78.71 | c | 75.03 | a | 67.52 | b | 59.50 | a | 48.10 | 41.37 | 59.26 | |||
1997 | 35.50 | b | 38.15 | a | 50.45 | b | 51.16 | a | 64.77 | a | 72.84 | a | 77.90 | 76.74 | 72.90 | a | 59.00 | 44.92 | 36.26 | b | 56.72 | |||||
1998 | 42.38 | a | 42.45 | 46.38 | a | 55.58 | 72.55 | c | 79.43 | a | 82.60 | a | 76.10 | 74.63 | 62.40 | b | 50.90 | 40.26 | 60.47 | |||||||
1999 | 40.57 | c | 47.98 | 48.35 | 56.46 | c | 64.81 | 73.91 | a | 78.18 | 78.08 | 67.71 | a | 58.97 | b | 53.07 | b | 39.22 | b | 58.94 | ||||||
2000 | 41.34 | 48.90 | 50.68 | 59.19 | c | 72.25 | a | 73.93 | a | 79.15 | a | 78.84 | b | 72.69 | c | 60.12 | c | 40.20 | b | 33.40 | b | 59.22 | ||||
2001 | 35.77 | c | 43.30 | 46.81 | 62.73 | 69.37 | 78.71 | a | 83.26 | 78.65 | 71.13 | c | 60.38 | b | 50.88 | b | 41.91 | b | 60.24 | |||||||
2002 | 41.77 | c | 41.02 | a | 46.66 | c | 61.17 | a | 69.55 | c | 78.10 | 79.73 | a | 79.85 | 71.67 | a | 57.36 | c | 46.03 | 41.05 | 59.50 | |||||
2003 | 41.82 | 40.52 | 52.18 | 61.50 | 69.32 | 72.15 | d | 81.32 | a | 80.42 | 69.13 | 63.80 | a | 49.37 | c | 42.98 | 60.38 | |||||||||
2004 | 41.17 | a | 39.91 | a | 54.95 | 57.98 | 71.03 | a | 75.18 | 77.34 | b | 74.55 | 69.97 | a | 60.31 | 44.74 | a | 40.84 | 59.00 | |||||||
2005 | 42.08 | a | 43.60 | b | 47.62 | a | 57.88 | 66.35 | 77.08 | 77.85 | 75.85 | 74.47 | a | 60.69 | 51.05 | 41.05 | 59.63 | |||||||||
2006 | 46.40 | 43.88 | 50.25 | c | 63.38 | 72.21 | 78.23 | 79.91 | d | 77.42 | 66.53 | 59.85 | a | 51.22 | 40.35 | a | 60.80 | |||||||||
2007 | 33.63 | 42.50 | 53.90 | 53.67 | 64.73 | c | 72.83 | 76.40 | a | 78.42 | 72.85 | 63.03 | 49.95 | 41.18 | 58.59 | |||||||||||
2008 | 39.27 | a | 45.19 | 50.56 | 57.43 | 67.52 | 79.64 | a | 76.69 | 75.97 | 67.20 | 59.65 | a | 50.72 | 41.37 | 59.27 | ||||||||||
2009 | 41.34 | 48.16 | 52.79 | 58.25 | 67.45 | 77.17 | 79.18 | 78.10 | 69.20 | 57.31 | 52.07 | 35.38 | a | 59.70 | ||||||||||||
2010 | 37.90 | 37.14 | 48.38 | b | 58.74 | a | 66.09 | b | 79.78 | 76.19 | 78.72 | a | 74.40 | a | 62.55 | 48.83 | 44.34 | 59.42 | ||||||||
2011 | 38.61 | 39.16 | 55.05 | 63.27 | 68.50 | 83.35 | 84.18 | 85.19 | 71.50 | 61.15 | 49.20 | 36.10 | 61.27 | |||||||||||||
2012 | 43.61 | 42.33 | 56.05 | 65.30 | 70.66 | 79.27 | 80.65 | 80.03 | 71.85 | 59.26 | 53.23 | 41.94 | 62.01 | |||||||||||||
2013 | 39.37 | 41.27 | 50.47 | 55.93 | 68.40 | 78.50 | 77.11 | 77.13 | 72.90 | 59.10 | 44.75 | 37.68 | 58.55 | |||||||||||||
2014 | 36.56 | 39.79 | 46.05 | 56.27 | 65.44 | 76.20 | 77.24 | 77.16 | 69.20 | 61.48 | 42.83 | 41.34 | 57.46 | |||||||||||||
2015 | 36.44 | 41.77 | 47.90 | 58.25 | 63.26 | 74.60 | 78.34 | 76.85 | 74.03 | 61.74 | 48.45 | 41.77 | 58.62 | |||||||||||||
2016 | 39.39 | 45.09 | 53.47 | 57.90 | 64.97 | 75.43 | 82.02 | 75.73 | 69.85 | 62.52 | 51.13 | 38.39 | 59.66 | |||||||||||||
2017 | 38.48 | 46.84 | 54.42 | 60.35 | 66.68 | 78.28 | 78.68 | 74.16 | 69.47 | 59.16 | 52.42 | 40.35 | 59.94 | |||||||||||||
2018 | 35.92 | 42.50 | 52.52 | 57.07 | 74.52 | 80.22 | 79.34 | 76.81 | 69.53 | 57.71 | 43.57 | 38.48 | 59.01 | |||||||||||||
2019 | 39.40 | 42.14 | 46.66 | 57.97 | 64.58 | 74.28 | 79.23 | 80.35 | 74.75 | 54.47 | 43.78 | 42.47 | 58.34 | |||||||||||||
2020 | 40.66 | 38.98 | 52.89 | 57.42 | 69.87 | 77.88 | 82.68 | 80.21 | 67.20 | 56.76 | 51.95 | 39.10 | 59.63 | |||||||||||||
2021 | 37.23 | 34.18 | 49.32 | 55.10 | 66.45 | 77.03 | 76.55 | 76.68 | 72.68 | 61.82 | 49.45 | 47.32 | 58.65 | |||||||||||||
2022 | 35.84 | 35.64 | 47.48 | 59.40 | 70.19 | 78.13 | 83.13 | 77.08 | 71.97 | 58.89 | 44.35 | 38.94 | 58.42 | |||||||||||||
2023 | 40.98 | 41.61 | 49.56 | 55.53 | 67.34 | 75.63 | 80.71 | 81.21 | 74.07 | 59.73 | 48.53 | 42.23 | 59.76 | |||||||||||||
2024 | 35.10 | 45.79 | 49.74 | 57.00 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.54 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 38.20 | 41.95 | 49.63 | 58.19 | 67.42 | 76.12 | 78.79 | 76.83 | 69.96 | 59.41 | 47.85 | 39.77 | 58.71 | |||||||||||||
S.D. | 3.38 | 3.43 | 3.16 | 3.13 | 2.74 | 2.80 | 2.27 | 2.38 | 2.67 | 2.25 | 3.31 | 3.13 | 1.23 | |||||||||||||
SKEW | -0.38 | -0.04 | 0.11 | 0.04 | 0.81 | 0.24 | 0.33 | 0.66 | -0.18 | -0.51 | -0.47 | -0.47 | 0.14 | |||||||||||||
MAX | 46.40 | 49.76 | 56.05 | 65.30 | 74.62 | 83.35 | 84.18 | 85.19 | 74.75 | 63.80 | 53.23 | 47.32 | 62.01 | |||||||||||||
MIN | 28.27 | 33.39 | 40.90 | 50.87 | 63.26 | 71.19 | 74.29 | 71.77 | 62.03 | 52.92 | 40.20 | 30.40 | 55.93 | |||||||||||||
YRS | 57 | 58 | 58 | 56 | 57 | 57 | 57 | 58 | 58 | 58 | 58 | 57 | 53 |