YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | 72.65 | 84.70 | 91.90 | 85.57 | a | 87.44 | c | 73.26 | 50.00 | c | 47.77 | 74.16 | d | |||||
1980 | 43.74 | 50.31 | 49.00 | a | 64.14 | a | 69.03 | 86.10 | 91.03 | 87.94 | 83.10 | 69.00 | 60.37 | 56.35 | 67.51 | |||||||||||
1981 | 53.10 | 54.68 | 53.87 | 69.37 | 71.84 | 88.73 | 91.23 | 86.87 | 79.40 | 63.58 | 57.87 | 49.58 | 68.34 | |||||||||||||
1982 | 42.96 | c | 46.81 | a | 53.57 | c | 62.53 | 72.75 | c | 83.57 | 90.03 | 85.29 | 76.97 | a | 65.00 | 50.67 | 43.16 | 64.44 | ||||||||
1983 | 45.71 | 48.86 | 52.32 | 57.87 | 72.23 | 82.76 | a | 89.03 | b | 86.16 | 82.24 | a | 68.50 | a | 51.97 | 44.52 | 65.18 | |||||||||
1984 | 45.28 | b | 50.52 | 58.40 | a | 62.41 | a | 82.48 | 82.20 | 89.84 | 86.26 | 82.70 | 60.26 | 52.90 | 41.74 | 66.25 | ||||||||||
1985 | 41.81 | 45.14 | 55.22 | d | 69.86 | b | 74.84 | 88.73 | 91.81 | 91.03 | 75.53 | 68.23 | a | 50.93 | 49.90 | a | 66.92 | |||||||||
1986 | 54.45 | 52.79 | 62.13 | 64.87 | 76.23 | 88.20 | 87.81 | 86.81 | 71.41 | a | 63.29 | 53.53 | 45.00 | 67.21 | ||||||||||||
1987 | 41.42 | 46.86 | 51.26 | 68.31 | a | 70.39 | 85.90 | 86.39 | 84.42 | 81.58 | k | 71.07 | a | 50.14 | a | 41.13 | 63.39 | a | ||||||||
1988 | 41.23 | 51.86 | a | 55.55 | 64.36 | b | 73.48 | b | 85.36 | b | 91.26 | 86.45 | 78.70 | 74.77 | 54.47 | 44.61 | 66.84 | |||||||||
1989 | 38.90 | b | 43.96 | a | 62.03 | 70.77 | 73.61 | 83.13 | 91.90 | 85.42 | 80.03 | 67.23 | 59.23 | 50.06 | 67.19 | |||||||||||
1990 | 44.81 | 47.11 | a | 57.35 | 65.93 | 72.29 | 88.00 | 88.35 | 84.61 | 79.77 | 69.65 | 54.14 | a | 38.79 | b | 65.90 | ||||||||||
1991 | 40.70 | a | 54.61 | 49.13 | 62.93 | 72.35 | 82.40 | 90.77 | a | 88.00 | a | 80.67 | 72.10 | b | 53.83 | 41.60 | a | 65.76 | ||||||||
1992 | 41.59 | b | 49.04 | a | 54.77 | a | 71.48 | a | 74.03 | a | 83.17 | 87.03 | 85.74 | 80.97 | 71.42 | 51.03 | a | 39.23 | a | 65.79 | ||||||
1993 | 40.16 | 43.22 | a | 57.17 | a | 66.37 | 75.58 | 81.97 | 88.77 | 85.65 | 83.20 | 66.73 | a | 51.53 | 46.81 | 65.60 | ||||||||||
1994 | 49.23 | 43.82 | 61.42 | 65.86 | a | 74.61 | c | 90.86 | a | 93.47 | a | 91.70 | a | 81.37 | 66.89 | c | 48.44 | c | 45.32 | c | 67.75 | |||||
1995 | 41.19 | 59.11 | a | 56.79 | c | 61.21 | a | 67.54 | c | 78.54 | f | 90.62 | b | 91.10 | a | 83.57 | 73.29 | 63.28 | a | 50.54 | c | 67.11 | a | |||
1996 | 48.00 | b | 56.00 | a | 59.32 | 68.28 | a | 80.19 | 90.13 | 93.29 | 90.87 | 79.83 | a | 67.83 | b | 55.22 | c | 45.42 | 69.53 | |||||||
1997 | 41.25 | c | 48.56 | a | 63.77 | 62.07 | a | 79.36 | c | 82.86 | a | 90.27 | a | 85.87 | a | 78.14 | b | 68.45 | 55.87 | 44.67 | a | 66.76 | ||||
1998 | 49.03 | a | 43.36 | 55.63 | a | 59.87 | 72.97 | 81.79 | a | 91.30 | a | 90.16 | 78.00 | 65.16 | 54.07 | 48.60 | a | 65.83 | ||||||||
1999 | 51.20 | a | 54.32 | 62.27 | a | 58.28 | a | 73.00 | a | 84.90 | a | 86.89 | c | 85.31 | b | 79.96 | b | 75.61 | 63.30 | 49.03 | 68.67 | |||||
2000 | 50.29 | 51.52 | b | 57.23 | 73.97 | 82.71 | 89.59 | a | 94.32 | 89.97 | b | 83.90 | a | 64.67 | a | 47.23 | 50.48 | 69.66 | ||||||||
2001 | 43.60 | a | 48.39 | 58.77 | 65.30 | 80.70 | a | 89.63 | 90.61 | 90.55 | 85.90 | a | 73.58 | 56.86 | a | 43.50 | a | 68.95 | ||||||||
2002 | 46.03 | 53.89 | 58.93 | b | 72.23 | 79.76 | b | 92.47 | 96.42 | 92.71 | 81.54 | d | 66.47 | a | 56.54 | b | 44.48 | 70.12 | ||||||||
2003 | 55.45 | 48.61 | 58.77 | a | 63.81 | c | 79.34 | b | 88.38 | a | 97.94 | 91.45 | 85.50 | 76.71 | 51.46 | b | 45.57 | a | 70.25 | |||||||
2004 | 45.27 | a | 42.18 | a | 65.94 | 65.61 | b | 78.10 | b | 87.83 | a | 91.37 | a | 89.07 | a | 80.52 | a | 64.68 | 51.57 | 48.79 | b | 67.58 | ||||
2005 | 48.03 | 49.28 | c | 53.72 | b | 65.57 | 73.93 | b | 76.90 | a | ----- | z | 85.67 | a | 81.44 | u | 66.57 | x | 55.86 | b | 47.70 | d | 61.85 | c | ||
2006 | 46.16 | 52.50 | 49.10 | a | 66.73 | 78.29 | 88.53 | 90.52 | 86.32 | 76.45 | a | 64.71 | c | 56.14 | b | 45.19 | 66.72 | |||||||||
2007 | 44.06 | 52.00 | 61.58 | 66.20 | 75.97 | a | 87.89 | b | 92.00 | l | 88.45 | i | 79.05 | j | 68.34 | b | 64.18 | m | 40.48 | 62.07 | d | |||||
2008 | 38.63 | a | 46.79 | 57.90 | 65.11 | c | 70.35 | e | 85.93 | 91.55 | 89.65 | 82.63 | 70.32 | 58.73 | 42.61 | 66.68 | ||||||||||
2009 | 47.84 | 49.25 | 58.13 | 64.60 | 79.39 | 79.80 | 90.74 | 89.37 | a | 82.80 | 65.06 | 58.53 | 38.00 | 66.96 | ||||||||||||
2010 | 41.52 | 43.54 | 53.94 | 62.67 | 70.42 | 85.57 | 91.00 | 85.35 | 85.07 | 65.94 | 51.43 | 47.87 | 65.36 | |||||||||||||
2011 | 46.26 | 45.75 | 56.13 | 63.13 | 70.26 | 84.27 | 89.68 | 91.74 | 82.20 | 69.90 | 52.83 | 44.52 | 66.39 | |||||||||||||
2012 | 50.42 | 49.34 | 60.48 | 68.47 | 79.29 | 90.30 | 89.48 | 88.10 | 81.63 | 71.06 | 59.63 | 42.94 | 69.26 | |||||||||||||
2013 | 41.19 | 47.43 | 61.13 | 66.37 | 74.45 | 90.37 | 91.42 | 85.74 | 77.47 | 64.90 | 54.27 | 42.35 | 66.42 | |||||||||||||
2014 | 52.32 | 53.93 | 60.35 | 65.73 | 76.29 | 87.70 | 92.94 | 84.58 | 81.69 | a | 72.74 | 58.87 | 43.61 | 69.23 | ||||||||||||
2015 | 48.39 | 57.07 | 62.37 | a | 65.23 | 68.16 | 87.43 | 86.97 | 88.71 | 83.31 | a | 70.23 | 50.79 | a | 42.52 | 67.60 | ||||||||||
2016 | 42.97 | 54.59 | 61.61 | 65.93 | 73.00 | 91.83 | 92.21 | b | 86.58 | 78.75 | b | 71.19 | 57.53 | 45.42 | 68.47 | |||||||||||
2017 | 41.42 | 52.25 | 65.03 | 66.27 | 74.84 | 91.40 | 92.32 | 89.27 | a | 80.21 | a | 71.90 | a | 63.76 | a | 54.74 | 70.28 | |||||||||
2018 | 52.24 | b | 50.82 | 57.35 | 72.70 | 77.65 | 91.53 | 94.20 | a | 88.68 | c | 85.00 | 63.17 | b | 55.59 | a | 42.77 | 69.31 | ||||||||
2019 | 42.87 | 40.14 | 54.58 | 70.21 | f | 66.06 | 84.00 | a | 91.29 | 91.00 | b | 82.82 | b | 66.68 | 57.77 | 40.68 | 65.26 | a | ||||||||
2020 | 44.87 | 51.03 | 55.23 | 66.90 | a | 80.21 | b | 87.23 | 93.06 | 95.06 | 86.07 | c | 76.97 | 57.54 | b | 48.06 | 70.19 | |||||||||
2021 | 46.00 | a | 51.37 | a | 56.61 | 70.30 | 79.71 | c | 92.39 | b | 92.94 | 90.39 | 85.13 | 65.32 | 63.00 | 45.55 | 69.89 | |||||||||
2022 | 48.10 | 50.93 | a | 59.60 | a | 69.23 | 79.03 | 88.57 | 92.03 | 87.52 | 84.67 | 70.10 | 50.67 | 44.45 | 68.74 | |||||||||||
2023 | 40.13 | 45.04 | 46.55 | b | 66.03 | 77.68 | 81.13 | 95.77 | 87.35 | 80.87 | 71.48 | 59.04 | f | 50.45 | b | 67.50 | a | |||||||||
2024 | 47.42 | 51.10 | 55.48 | 66.33 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.34 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.49 | 49.55 | 57.28 | 65.93 | 75.05 | 86.50 | 91.20 | 88.09 | 81.36 | 68.81 | 55.10 | 45.48 | 67.62 | |||||||||||||
S.D. | 4.33 | 4.25 | 4.37 | 3.60 | 4.11 | 3.69 | 2.46 | 2.59 | 3.21 | 3.92 | 4.19 | 3.96 | 1.65 | |||||||||||||
SKEW | 0.47 | -0.08 | -0.33 | 0.04 | -0.08 | -0.35 | 0.32 | 0.53 | -0.62 | 0.16 | 0.36 | 0.50 | 0.10 | |||||||||||||
MAX | 55.45 | 59.11 | 65.94 | 73.97 | 82.71 | 92.47 | 97.94 | 95.06 | 87.44 | 76.97 | 63.76 | 56.35 | 70.28 | |||||||||||||
MIN | 38.63 | 40.14 | 46.55 | 57.87 | 66.06 | 76.90 | 86.39 | 84.42 | 71.41 | 60.26 | 47.23 | 38.00 | 64.44 | |||||||||||||
YRS | 45 | 45 | 45 | 43 | 45 | 44 | 43 | 44 | 42 | 44 | 43 | 45 | 38 |