YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.30 | k | 60.05 | 52.57 | a | 43.28 | 38.08 | a | 48.50 | h | ||
1972 | 35.45 | 36.75 | a | 47.95 | 49.02 | 61.82 | 68.97 | a | 74.94 | 75.45 | 60.92 | 51.52 | 42.92 | 27.33 | a | 52.75 | ||||||||||
1973 | 29.27 | 37.68 | 47.87 | 53.18 | 61.92 | 67.78 | 75.39 | 73.06 | 64.30 | 51.27 | 41.78 | a | 40.21 | 53.64 | ||||||||||||
1974 | 30.03 | 41.80 | 45.19 | 52.22 | a | 57.97 | 70.58 | 72.81 | 73.21 | 65.05 | 51.71 | 44.65 | 40.05 | 53.77 | ||||||||||||
1975 | 36.58 | 35.79 | 42.76 | 47.78 | 59.63 | a | 65.68 | 76.65 | a | 70.18 | 64.75 | 53.21 | 40.67 | 38.39 | 52.67 | |||||||||||
1976 | 37.53 | 39.24 | 42.94 | 50.67 | 60.76 | 64.08 | 72.82 | l | 68.87 | 65.43 | 50.87 | 40.90 | a | 32.02 | g | 52.13 | b | |||||||||
1977 | 26.95 | 41.16 | 46.45 | 56.00 | 57.32 | 71.65 | 72.16 | 76.56 | 60.77 | 52.44 | 41.18 | 38.48 | 53.43 | |||||||||||||
1978 | 33.89 | 40.39 | 48.45 | a | 52.62 | 58.56 | 68.73 | 73.68 | 71.35 | 62.22 | 51.85 | 35.35 | 33.33 | a | 52.54 | |||||||||||
1979 | 17.55 | 36.79 | 46.17 | a | 53.33 | 63.80 | a | 69.35 | 76.81 | 74.32 | a | 67.28 | a | 56.63 | 39.90 | 39.80 | a | 53.48 | ||||||||
1980 | 28.12 | b | 37.50 | 45.83 | a | 57.21 | a | 63.70 | a | 66.26 | a | 75.32 | 71.31 | 67.25 | 52.63 | 45.74 | a | 40.17 | b | 54.25 | ||||||
1981 | 39.03 | b | 39.86 | 48.42 | 53.73 | 60.10 | 66.00 | 71.92 | 74.39 | 64.67 | d | 51.69 | 44.37 | 38.74 | 54.41 | |||||||||||
1982 | 35.60 | a | 37.38 | b | 45.48 | 49.03 | 59.63 | 69.97 | 72.26 | 75.16 | 63.77 | 51.05 | 38.45 | 35.60 | 52.78 | |||||||||||
1983 | 39.22 | a | 43.43 | 50.63 | e | 52.37 | 64.08 | a | 66.59 | b | 70.87 | a | 72.52 | 58.59 | a | 50.55 | 45.05 | a | 23.33 | a | 53.10 | |||||
1984 | 34.90 | a | 41.41 | 49.34 | 53.53 | a | 58.26 | b | 67.16 | b | 74.23 | 73.97 | 62.68 | 50.17 | a | 43.03 | a | 30.36 | c | 53.25 | ||||||
1985 | 29.57 | b | 31.69 | a | 43.42 | a | 55.45 | 63.77 | 69.25 | 79.00 | 70.32 | 61.42 | 52.82 | 30.52 | b | 23.65 | a | 50.91 | ||||||||
1986 | 35.84 | 40.11 | a | 50.68 | f | 52.15 | 59.48 | c | 73.98 | 70.39 | 76.76 | 60.00 | 53.29 | 45.11 | b | 35.13 | a | 54.75 | a | |||||||
1987 | 32.59 | b | 40.28 | a | 47.68 | a | 55.88 | 63.11 | 69.05 | a | 72.81 | 71.74 | 66.38 | 51.45 | 43.83 | d | 35.61 | 54.20 | ||||||||
1988 | 34.18 | 40.93 | a | 45.60 | a | 53.83 | 59.76 | d | 65.32 | 74.47 | a | 72.34 | 62.98 | 58.15 | 45.53 | a | 35.37 | d | 54.04 | |||||||
1989 | 39.22 | b | 27.06 | d | 43.23 | a | 55.62 | 59.47 | 69.60 | a | 73.45 | 71.24 | 63.95 | 53.45 | a | 46.80 | 35.12 | a | 53.18 | |||||||
1990 | 39.97 | b | ----- | z | 46.94 | 55.86 | b | 58.35 | 66.77 | 76.74 | 74.61 | 68.64 | a | 52.05 | a | 48.28 | 28.73 | i | 58.82 | b | ||||||
1991 | 30.59 | b | 43.48 | a | 44.08 | 52.07 | b | 58.19 | 62.95 | 74.39 | 75.45 | 66.48 | 52.16 | c | 44.03 | a | 39.04 | c | 53.58 | |||||||
1992 | 38.48 | a | 42.55 | 48.23 | a | 55.35 | 62.62 | a | 73.02 | b | 73.28 | a | 73.39 | 62.26 | a | 53.53 | a | 42.92 | 33.42 | 54.92 | ||||||
1993 | 23.92 | 31.04 | 41.21 | 52.50 | 64.63 | 65.88 | 67.87 | 70.16 | 63.65 | 53.97 | 34.26 | a | 36.79 | 50.49 | ||||||||||||
1994 | 39.84 | b | 35.96 | b | 46.42 | 56.97 | 62.56 | 66.90 | 77.44 | 73.08 | a | 67.34 | a | 53.00 | b | 41.00 | a | 35.25 | a | 54.65 | ||||||
1995 | 32.35 | 41.15 | b | 44.02 | 51.80 | c | ----- | z | 66.20 | 73.60 | e | 68.84 | c | 65.93 | 51.85 | a | 45.54 | b | 36.69 | b | 52.54 | a | ||||
1996 | 36.59 | i | 30.10 | n | ----- | z | 52.57 | b | 57.64 | b | ----- | z | 74.21 | e | 71.83 | a | 61.85 | 51.71 | b | 39.75 | 34.04 | e | 55.45 | d | ||
1997 | 32.60 | a | 39.66 | 45.65 | 50.64 | a | 62.07 | b | 65.93 | ----- | z | 74.71 | 64.70 | 51.52 | a | 43.03 | a | 36.40 | a | 51.54 | a | |||||
1998 | 35.84 | 41.80 | 47.06 | 51.59 | a | 59.55 | 67.38 | 78.92 | 74.40 | 67.55 | b | 50.81 | 46.17 | a | 35.69 | 54.73 | ||||||||||
1999 | 38.88 | a | 42.02 | 45.02 | 49.22 | 57.15 | 65.83 | 70.79 | 73.77 | 61.40 | 50.56 | 45.98 | a | 39.65 | a | 53.36 | ||||||||||
2000 | 35.92 | a | 38.83 | 44.63 | a | 54.27 | 60.20 | a | 67.05 | 72.90 | a | 72.74 | 62.62 | 51.50 | 36.22 | a | 32.85 | a | 52.48 | |||||||
2001 | 35.03 | 36.79 | b | 45.68 | a | 51.66 | a | 60.17 | b | 64.73 | b | 74.08 | a | 74.69 | b | 66.03 | a | 52.43 | a | 42.60 | a | 37.40 | b | 53.44 | ||
2002 | 38.10 | 37.98 | 42.02 | b | 52.12 | 57.57 | b | 67.86 | b | 76.10 | 71.32 | c | 63.73 | 50.19 | b | 41.71 | a | 38.66 | 53.11 | |||||||
2003 | 39.90 | 39.85 | a | 48.95 | b | 52.60 | a | 59.76 | d | 69.82 | 78.28 | a | 74.73 | a | 66.84 | a | 56.42 | a | 38.81 | c | 36.74 | 55.23 | ||||
2004 | 29.97 | b | 39.03 | 48.81 | b | 54.15 | 61.24 | b | 68.27 | 76.81 | 75.74 | 64.50 | a | 54.64 | b | 41.27 | 37.12 | a | 54.29 | |||||||
2005 | 33.31 | 36.68 | 48.47 | 52.95 | 62.89 | 65.72 | 75.25 | a | 74.18 | a | 63.37 | 54.76 | 40.88 | a | 30.02 | 53.21 | ||||||||||
2006 | 40.50 | a | 36.11 | 44.65 | a | ----- | z | 59.62 | c | 69.58 | 78.05 | 72.72 | a | 63.34 | b | 51.85 | a | 43.05 | 32.44 | 53.81 | a | |||||
2007 | 31.29 | 38.62 | b | 46.38 | b | 51.30 | 61.35 | a | 67.38 | 78.18 | a | 70.88 | b | 64.91 | c | 51.07 | b | 39.64 | a | 35.81 | e | 53.07 | ||||
2008 | 31.47 | b | 41.26 | b | 43.40 | b | 48.08 | d | 61.00 | c | 65.57 | b | 75.60 | b | 71.46 | g | 61.40 | e | 52.40 | f | 43.61 | c | 27.91 | b | 49.93 | b |
2009 | 34.50 | c | 35.41 | a | 41.83 | d | 50.38 | a | 59.80 | c | 69.87 | 74.94 | d | 74.46 | c | 65.31 | a | 51.28 | d | 41.71 | d | 27.72 | b | 52.27 | ||
2010 | 37.98 | d | 41.50 | d | 45.41 | i | 52.09 | g | 57.30 | c | 65.60 | a | 72.69 | e | 72.33 | b | 64.46 | b | 53.09 | b | 39.40 | a | 34.32 | c | 53.87 | b |
2011 | 35.74 | b | 36.22 | e | 43.79 | b | 48.30 | e | 56.08 | a | 65.34 | a | 69.37 | e | 75.03 | 66.35 | c | 53.98 | a | 40.34 | a | 31.07 | c | 51.80 | ||
2012 | 32.60 | a | 37.48 | a | 44.59 | b | 52.85 | c | 58.98 | b | 63.93 | b | 74.34 | 73.61 | 63.27 | 51.11 | 43.75 | 38.45 | 52.91 | |||||||
2013 | 31.69 | 38.70 | ----- | z | 52.13 | 60.76 | 67.82 | 77.32 | 75.13 | 67.05 | 48.77 | 39.20 | 28.34 | 53.36 | a | |||||||||||
2014 | 34.98 | 34.48 | 45.50 | 52.50 | 62.26 | 67.88 | 78.53 | 76.31 | 65.68 | 57.73 | 39.30 | 36.87 | 54.34 | |||||||||||||
2015 | 36.03 | 42.91 | 48.03 | 51.42 | 64.18 | 75.28 | 78.34 | 74.19 | 62.73 | 56.60 | 42.10 | 37.55 | 55.78 | |||||||||||||
2016 | 35.98 | 41.86 | 46.65 | 57.57 | 63.21 | 69.47 | 74.34 | 72.95 | 62.88 | 53.32 | 46.73 | 28.81 | 54.48 | |||||||||||||
2017 | 22.52 | 31.05 | 46.23 | 51.62 | 60.44 | 68.35 | 77.39 | 75.48 | 64.45 | 50.65 | 42.34 | a | 33.53 | 52.00 | ||||||||||||
2018 | 39.69 | 39.45 | 42.77 | 51.70 | 66.15 | 67.80 | 76.05 | 74.15 | 63.07 | 51.45 | 40.18 | 37.46 | c | 54.16 | ||||||||||||
2019 | 36.85 | 27.98 | 36.45 | 54.02 | 62.44 | 70.52 | 74.06 | 75.13 | 66.33 | 48.31 | 38.70 | 34.58 | 52.11 | |||||||||||||
2020 | 38.55 | 41.83 | 44.84 | 54.22 | 61.63 | 68.85 | 76.17 | a | 76.81 | 66.13 | 54.82 | 42.48 | 36.81 | 55.26 | ||||||||||||
2021 | 39.21 | 37.43 | 46.16 | 54.35 | 62.68 | 75.83 | 81.24 | 74.35 | 65.79 | a | 54.76 | 45.68 | 37.47 | 56.25 | ||||||||||||
2022 | 32.42 | 38.50 | 49.06 | 48.12 | 57.31 | 67.33 | 78.52 | a | 78.42 | 68.08 | 58.66 | 38.48 | 29.37 | 53.69 | ||||||||||||
2023 | 35.66 | 36.62 | 41.98 | 50.67 | 66.03 | 71.12 | 78.55 | 76.68 | 67.10 | 55.31 | 41.90 | 39.71 | 55.11 | |||||||||||||
2024 | 30.11 | 41.14 | 46.97 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 39.41 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 34.19 | 38.33 | 45.59 | 52.58 | 60.76 | 68.08 | 75.03 | 73.63 | 64.30 | 52.71 | 41.89 | 34.84 | 53.55 | |||||||||||||
S.D. | 4.77 | 3.69 | 2.62 | 2.41 | 2.43 | 2.73 | 2.78 | 2.11 | 2.31 | 2.25 | 3.36 | 4.26 | 1.21 | |||||||||||||
SKEW | -1.18 | -1.16 | -0.78 | -0.03 | 0.21 | 0.83 | -0.24 | -0.29 | -0.28 | 0.82 | -0.83 | -0.97 | -0.18 | |||||||||||||
MAX | 40.50 | 43.48 | 50.63 | 57.57 | 66.15 | 75.83 | 81.24 | 78.42 | 68.64 | 58.66 | 48.28 | 40.21 | 56.25 | |||||||||||||
MIN | 17.55 | 27.06 | 36.45 | 47.78 | 56.08 | 62.95 | 67.87 | 68.84 | 58.59 | 48.31 | 30.52 | 23.33 | 50.49 | |||||||||||||
YRS | 52 | 51 | 49 | 50 | 51 | 51 | 50 | 51 | 53 | 52 | 53 | 51 | 42 |