YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.87 | 74.32 | c | 71.43 | 58.74 | 46.30 | 47.13 | 62.63 | f | |||||
1974 | 45.29 | 47.14 | 51.23 | 57.38 | a | 61.74 | 73.37 | 73.29 | 76.90 | 76.10 | 62.10 | 50.60 | 46.74 | 60.16 | ||||||||||||
1975 | 43.32 | 46.07 | 50.97 | 56.23 | 66.39 | 69.70 | 78.06 | 71.84 | 73.47 | 56.74 | 49.33 | 46.13 | 59.02 | |||||||||||||
1976 | 46.58 | 46.48 | 48.47 | a | 59.17 | 66.23 | 70.07 | a | 75.61 | 71.39 | 71.47 | 62.19 | 52.20 | 48.68 | 59.88 | |||||||||||
1977 | 43.35 | 52.68 | 51.48 | 64.03 | 63.32 | 73.00 | 75.61 | 81.23 | 67.13 | 59.94 | 49.03 | 46.90 | 60.64 | |||||||||||||
1978 | 47.10 | 50.89 | 57.65 | 59.13 | 65.57 | a | 76.23 | 77.42 | 75.81 | 66.40 | 64.10 | 47.97 | a | 42.23 | 60.87 | |||||||||||
1979 | 42.48 | 46.48 | a | 59.61 | 60.40 | 68.50 | a | 74.93 | 79.13 | a | 75.96 | c | 72.17 | 62.10 | 48.73 | 48.71 | 61.60 | |||||||||
1980 | 41.10 | 49.90 | 53.70 | a | 63.20 | 66.65 | 68.93 | 77.23 | 74.71 | 71.43 | 64.00 | 53.20 | 50.06 | 61.18 | ||||||||||||
1981 | 49.48 | 51.64 | 59.97 | 60.33 | 65.35 | 69.07 | 75.68 | 82.74 | 73.07 | 59.70 | a | 53.43 | 45.94 | 62.20 | ||||||||||||
1982 | 44.90 | b | 48.61 | 53.23 | 57.75 | b | 66.90 | 75.17 | a | 74.17 | b | 73.57 | j | 70.38 | f | 61.57 | a | 48.79 | a | 44.71 | 57.58 | b | ||||
1983 | 48.68 | 51.67 | a | 55.87 | a | 62.41 | a | 70.37 | a | 69.21 | a | 73.03 | 76.87 | 69.64 | b | 60.52 | 51.03 | 40.67 | a | 60.83 | ||||||
1984 | 49.17 | a | 51.45 | 55.90 | 58.57 | 63.16 | 69.97 | 77.94 | 78.61 | 70.60 | 57.71 | 48.70 | 40.61 | 60.20 | ||||||||||||
1985 | 41.90 | 46.07 | a | 51.63 | d | 57.79 | b | 68.27 | a | 73.70 | 85.19 | 80.23 | a | 68.59 | a | 60.00 | 42.63 | 39.43 | a | 59.62 | ||||||
1986 | 48.83 | a | 49.48 | a | 57.74 | 56.77 | 64.74 | 74.07 | b | 71.19 | 82.84 | 67.55 | a | 61.19 | 49.90 | 45.26 | 60.80 | |||||||||
1987 | 43.42 | 50.50 | 55.55 | 63.13 | 68.03 | a | 74.93 | a | 74.79 | c | 79.10 | a | 72.88 | f | 65.18 | c | 51.69 | a | 43.43 | a | 60.89 | a | ||||
1988 | 44.60 | a | 51.04 | b | 54.16 | 60.50 | b | 64.67 | a | 69.72 | a | 77.74 | 76.94 | 72.10 | 61.42 | 50.07 | 45.69 | b | 60.72 | |||||||
1989 | 45.17 | a | 42.93 | a | 49.20 | a | 63.20 | 65.77 | a | 73.77 | 72.83 | a | 73.31 | b | 74.15 | c | 59.97 | b | 50.83 | 46.29 | 59.78 | |||||
1990 | 46.74 | 45.29 | 55.42 | 62.00 | b | 65.41 | b | 68.59 | a | 79.90 | a | 77.93 | c | 73.57 | 57.90 | 51.40 | 39.59 | b | 60.31 | |||||||
1991 | 44.97 | 52.67 | a | 52.15 | d | 57.83 | 63.61 | 66.60 | 76.74 | d | 76.79 | b | 72.25 | b | 60.33 | d | 53.04 | b | 47.06 | 60.34 | ||||||
1992 | 47.90 | a | 52.07 | a | 59.45 | 61.86 | a | 72.30 | a | 74.89 | c | 76.45 | 78.73 | a | 69.90 | 60.71 | 49.93 | a | 43.14 | b | 62.28 | |||||
1993 | 42.24 | b | 48.17 | e | 55.10 | 56.97 | 69.47 | a | 68.20 | 70.55 | 76.06 | 72.16 | e | 62.70 | a | 48.52 | a | 43.70 | a | 59.49 | ||||||
1994 | 48.20 | a | 43.93 | 55.10 | 59.67 | 66.63 | a | 68.72 | a | 78.07 | a | 77.39 | 72.83 | 59.20 | a | 45.74 | c | 43.36 | c | 59.90 | ||||||
1995 | 48.00 | a | 49.68 | c | 54.47 | a | 58.61 | b | 68.38 | b | 72.10 | a | 76.00 | a | 71.37 | a | 74.11 | b | 59.87 | a | 54.96 | c | 44.52 | 61.00 | ||
1996 | 43.38 | b | 48.11 | a | 54.35 | 57.83 | 61.23 | 69.83 | 78.87 | 77.19 | 66.23 | 57.50 | a | 47.77 | 41.84 | 58.68 | ||||||||||
1997 | 45.03 | a | 48.93 | 50.77 | 57.93 | 68.35 | 67.83 | 74.90 | 77.61 | 71.27 | 58.16 | 53.53 | 46.03 | 60.03 | ||||||||||||
1998 | 46.39 | 49.11 | 53.48 | 59.33 | 63.90 | 69.27 | 77.58 | 79.10 | 74.70 | 58.68 | 50.33 | 43.16 | 60.42 | |||||||||||||
1999 | 46.24 | b | 45.61 | 50.48 | ----- | z | ----- | z | 66.87 | 72.06 | 72.42 | 69.00 | 57.16 | 50.70 | 45.94 | 57.65 | b | |||||||||
2000 | 43.23 | 48.76 | 52.19 | 60.27 | 62.58 | 70.07 | 72.65 | 73.23 | 69.97 | 58.13 | 47.90 | 45.32 | 58.69 | |||||||||||||
2001 | 45.65 | 47.82 | 53.68 | 56.24 | a | 65.47 | a | 67.07 | ----- | z | 74.42 | 68.00 | 58.06 | 50.27 | 44.19 | 57.35 | a | |||||||||
2002 | 44.74 | 47.89 | 48.65 | 56.70 | ----- | z | 71.03 | 74.52 | 75.90 | 69.77 | 59.39 | 50.93 | 45.23 | 58.61 | a | |||||||||||
2003 | 49.00 | 48.07 | 53.19 | 55.93 | 63.87 | 73.30 | 79.68 | 76.97 | 71.73 | 60.19 | 48.03 | 43.65 | 60.30 | |||||||||||||
2004 | 43.06 | 49.04 | a | 56.00 | 63.43 | 65.94 | 73.45 | a | 78.45 | 75.61 | 65.70 | 59.06 | 48.86 | a | 46.00 | 60.38 | ||||||||||
2005 | 46.13 | 50.61 | 56.84 | 57.87 | 66.16 | 68.07 | 75.16 | 77.42 | 68.67 | 58.39 | 46.38 | a | 44.68 | 59.70 | ||||||||||||
2006 | 47.45 | 47.85 | a | 50.77 | 57.97 | 65.77 | 70.90 | 77.35 | 75.74 | 71.40 | 58.90 | 47.63 | 43.00 | 59.56 | ||||||||||||
2007 | 43.71 | 47.25 | 52.13 | 55.73 | 64.74 | 67.47 | 74.16 | 72.00 | 65.93 | 55.42 | 48.43 | 42.35 | 57.44 | |||||||||||||
2008 | 40.74 | 47.07 | 48.94 | 53.30 | 62.42 | 65.47 | 73.03 | 71.42 | 66.97 | 56.35 | 51.27 | 40.58 | 56.46 | |||||||||||||
2009 | 42.03 | 45.75 | 47.52 | 56.03 | 63.45 | 71.30 | 77.77 | 72.77 | 68.73 | 56.35 | 48.93 | 40.81 | 57.62 | |||||||||||||
2010 | 47.48 | 49.57 | 52.45 | 53.60 | 59.77 | 64.93 | 73.29 | 73.13 | 65.00 | 57.32 | 46.40 | 44.65 | 57.30 | |||||||||||||
2011 | 44.58 | 44.29 | 48.03 | 51.47 | 58.61 | 65.77 | 70.52 | 73.42 | 70.40 | 56.71 | 46.77 | 43.16 | 56.14 | |||||||||||||
2012 | 42.90 | 46.97 | 46.61 | 55.87 | 62.29 | 64.27 | 70.87 | 75.00 | 69.10 | 57.39 | 49.53 | 42.13 | 56.91 | |||||||||||||
2013 | 40.55 | 46.89 | 51.39 | 56.83 | 64.19 | 69.20 | 75.55 | 74.94 | 67.07 | 54.68 | 48.43 | 41.61 | 57.61 | |||||||||||||
2014 | 45.90 | 43.50 | 53.00 | 57.00 | 65.90 | 68.60 | 77.32 | 77.45 | 70.77 | 61.03 | 50.13 | 46.58 | 59.77 | |||||||||||||
2015 | 47.94 | 53.07 | 56.23 | 58.18 | b | 67.13 | 78.23 | 80.58 | 76.84 | 66.17 | 61.32 | 50.08 | d | 47.35 | 61.93 | |||||||||||
2016 | 48.19 | 52.55 | 54.53 | a | 64.50 | d | 67.90 | 72.31 | a | 74.29 | 77.35 | 67.40 | 57.32 | 52.34 | a | 40.55 | 60.77 | |||||||||
2017 | 41.52 | 45.18 | 49.03 | 55.23 | 66.35 | 70.93 | 77.16 | 79.13 | 71.13 | 59.77 | 48.63 | 42.29 | 58.86 | |||||||||||||
2018 | 46.94 | 46.14 | 51.81 | 57.40 | 68.68 | 69.83 | 79.84 | 76.71 | 67.50 | 56.97 | 51.53 | 45.65 | 59.92 | |||||||||||||
2019 | 46.68 | 40.85 | a | 53.42 | 58.40 | 68.32 | 72.40 | 74.52 | 75.81 | 67.60 | 55.97 | 50.27 | 45.23 | 59.12 | ||||||||||||
2020 | 46.10 | 49.10 | 50.58 | 59.93 | 67.84 | 70.27 | 75.52 | 75.81 | 71.80 | 59.71 | 49.63 | 46.45 | 60.23 | |||||||||||||
2021 | 46.29 | 44.79 | 50.77 | 60.97 | 64.81 | 76.17 | 78.57 | a | 76.10 | 68.43 | 56.03 | 50.45 | a | 41.42 | 59.57 | |||||||||||
2022 | 43.35 | 47.25 | 52.84 | 53.60 | 59.52 | 70.07 | 78.19 | 79.39 | 73.13 | 63.48 | 46.17 | 40.81 | 58.98 | |||||||||||||
2023 | 46.23 | 46.07 | 49.77 | 53.23 | 71.29 | 74.57 | 79.52 | 78.61 | 68.63 | 59.13 | 48.83 | a | 47.52 | 60.28 | ||||||||||||
2024 | 44.26 | 48.10 | 51.42 | 58.48 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.93 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.28 | 48.06 | 52.92 | 58.40 | 65.58 | 70.69 | 76.13 | 76.25 | 70.05 | 59.34 | 49.57 | 44.28 | 59.72 | |||||||||||||
S.D. | 2.40 | 2.76 | 3.16 | 3.03 | 2.92 | 3.21 | 2.95 | 2.77 | 2.70 | 2.39 | 2.29 | 2.56 | 1.43 | |||||||||||||
SKEW | -0.15 | -0.16 | 0.26 | 0.08 | -0.18 | 0.18 | 0.20 | 0.16 | 0.07 | 0.35 | -0.24 | -0.03 | -0.69 | |||||||||||||
MAX | 49.48 | 53.07 | 59.97 | 64.50 | 72.30 | 78.23 | 85.19 | 82.84 | 76.10 | 65.18 | 54.96 | 50.06 | 62.28 | |||||||||||||
MIN | 40.55 | 40.85 | 46.61 | 51.47 | 58.61 | 64.27 | 70.52 | 71.37 | 65.00 | 54.68 | 42.63 | 39.43 | 56.14 | |||||||||||||
YRS | 51 | 51 | 51 | 49 | 48 | 50 | 50 | 50 | 49 | 51 | 51 | 51 | 45 |