YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.23 | 59.33 | 53.00 | 62.19 | i | |||
1974 | 45.00 | 53.50 | 64.35 | 69.03 | 81.74 | 92.37 | 88.85 | d | 88.61 | 81.97 | a | 69.94 | 57.27 | 46.10 | 69.89 | |||||||||||
1975 | 45.29 | 48.71 | 56.00 | 62.10 | 73.73 | a | 85.33 | 88.19 | 88.23 | 79.67 | 73.71 | 58.10 | 44.13 | 66.93 | ||||||||||||
1976 | 48.90 | a | 57.21 | 59.39 | 68.53 | 76.90 | 87.60 | 89.48 | 88.10 | 79.73 | 67.10 | 58.37 | 49.13 | 69.20 | ||||||||||||
1977 | 38.58 | 54.14 | 57.94 | 69.62 | a | 75.35 | 89.50 | 90.03 | 88.73 | a | 83.00 | 73.06 | 59.80 | 55.03 | 69.57 | |||||||||||
1978 | 47.63 | a | 49.89 | 62.10 | 69.13 | 73.61 | 89.48 | a | 92.55 | 88.61 | 80.87 | ----- | z | 55.19 | c | ----- | z | 70.91 | b | |||||||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.78 | c | ----- | z | 52.78 | k |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.60 | e | 43.56 | d | 52.08 | j |
2003 | 54.72 | b | 51.56 | c | 59.71 | c | 66.58 | d | 81.25 | c | 89.10 | 97.40 | a | 90.66 | b | 85.43 | b | 78.25 | c | 57.81 | c | 52.33 | a | 72.07 | ||
2004 | 49.45 | b | 50.57 | a | 69.10 | 67.79 | a | 81.68 | 89.60 | 92.67 | a | 88.16 | 82.57 | b | 70.52 | 55.88 | e | 49.30 | a | 70.61 | ||||||
2005 | 52.94 | 52.79 | 57.86 | b | 69.80 | 81.68 | c | 87.21 | a | 97.53 | a | 88.19 | 85.41 | a | 74.68 | c | 64.12 | e | 53.58 | 72.15 | ||||||
2006 | 55.87 | 60.11 | a | 57.79 | b | 73.30 | 84.29 | 94.34 | a | 93.32 | 87.77 | a | 79.15 | c | 69.93 | b | 65.21 | b | 52.10 | a | 72.77 | |||||
2007 | 46.10 | 55.52 | a | 66.43 | a | 72.43 | b | 79.77 | a | 92.00 | a | 92.97 | 88.97 | 83.00 | a | 72.87 | a | 65.79 | b | 46.44 | d | 71.86 | ||||
2008 | 45.07 | a | 49.42 | c | 63.81 | e | 71.68 | e | 77.89 | d | 90.89 | c | 92.92 | g | 89.97 | 82.41 | a | 72.57 | a | 60.33 | c | 48.37 | a | 68.40 | a | |
2009 | 50.32 | 59.88 | b | 63.11 | c | 67.86 | b | 80.79 | b | 85.04 | d | 96.72 | b | 90.73 | a | ----- | z | ----- | z | ----- | z | ----- | z | 74.31 | d | |
2010 | ----- | z | ----- | z | ----- | z | 68.77 | 75.46 | c | 89.96 | c | 91.53 | a | 86.87 | 85.36 | b | 71.83 | a | 56.31 | a | 53.33 | a | 75.49 | c | ||
2011 | 43.55 | 49.24 | c | 64.74 | 70.74 | c | 75.83 | b | 89.70 | 91.42 | 92.03 | 82.30 | c | 70.26 | 56.72 | a | 40.70 | a | 68.94 | |||||||
2012 | 52.03 | a | 53.68 | a | 63.79 | b | 73.31 | a | 82.48 | b | 92.96 | b | 90.11 | c | 89.81 | 82.67 | 73.87 | 63.10 | a | 48.63 | a | 72.20 | ||||
2013 | 43.23 | 48.11 | 64.74 | 69.67 | 78.68 | 93.00 | 89.90 | 87.34 | b | 82.00 | 68.61 | 57.53 | 45.48 | 69.02 | ||||||||||||
2014 | 53.68 | 59.00 | 62.37 | a | 69.04 | b | 76.87 | 90.44 | c | 92.73 | a | 87.04 | d | 84.69 | a | 73.86 | b | 60.97 | 47.22 | d | 71.49 | |||||
2015 | 48.45 | 60.93 | 65.31 | b | 68.60 | 73.00 | 90.23 | 88.07 | b | 91.10 | a | 84.48 | c | 72.62 | b | 56.54 | d | 45.55 | b | 70.41 | ||||||
2016 | 47.00 | c | 60.04 | d | 67.57 | h | 69.47 | 76.00 | m | ----- | z | ----- | z | ----- | z | 77.50 | v | 76.14 | c | 55.44 | u | 48.56 | v | 63.16 | h | |
2017 | 46.94 | 55.64 | 66.21 | q | 70.33 | 76.55 | 93.40 | 91.65 | 87.81 | 82.43 | 69.46 | e | 66.21 | b | 53.23 | 72.15 | a | |||||||||
2018 | 54.03 | 54.18 | 61.65 | 73.87 | 81.68 | 92.53 | 92.65 | 90.00 | 84.87 | 63.94 | 55.40 | 48.07 | b | 71.07 | ||||||||||||
2019 | 43.52 | 45.39 | 60.29 | 69.77 | 69.97 | 87.97 | 93.26 | 92.23 | 82.50 | 71.23 | 60.20 | 45.81 | 68.51 | |||||||||||||
2020 | 48.81 | 52.21 | a | 59.32 | 68.57 | 82.45 | 89.30 | 92.81 | 95.68 | 85.73 | 75.90 | a | 61.48 | a | 47.68 | 71.66 | ||||||||||
2021 | 46.55 | 53.86 | 57.26 | 70.13 | 80.74 | 94.00 | b | 91.53 | a | 88.71 | 84.73 | 67.29 | 63.27 | 51.03 | 70.76 | |||||||||||
2022 | 47.71 | 50.61 | 59.35 | 70.90 | 81.35 | 89.87 | 92.26 | 87.13 | 85.23 | 66.90 | 52.97 | 47.23 | 69.29 | |||||||||||||
2023 | 45.26 | 49.22 | e | 54.03 | 68.37 | 78.03 | 85.20 | 98.52 | 90.10 | 85.20 | 74.94 | 59.83 | 50.58 | 69.94 | ||||||||||||
2024 | 45.77 | 55.17 | 56.38 | b | 68.57 | 72.30 | u | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.47 | h | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 47.94 | 53.48 | 61.12 | 69.55 | 78.47 | 90.04 | 92.34 | 89.30 | 83.14 | 71.75 | 59.30 | 48.70 | 70.42 | |||||||||||||
S.D. | 4.11 | 4.22 | 3.76 | 2.33 | 3.65 | 2.67 | 2.85 | 2.01 | 1.98 | 3.37 | 3.68 | 3.63 | 1.52 | |||||||||||||
SKEW | 0.14 | 0.20 | 0.11 | -0.72 | -0.49 | -0.28 | 0.64 | 1.36 | -0.44 | -0.34 | 0.22 | -0.11 | -0.38 | |||||||||||||
MAX | 55.87 | 60.93 | 69.10 | 73.87 | 84.29 | 94.34 | 98.52 | 95.68 | 85.73 | 78.25 | 66.21 | 55.03 | 72.77 | |||||||||||||
MIN | 38.58 | 45.39 | 54.03 | 62.10 | 69.97 | 85.04 | 88.07 | 86.87 | 79.15 | 63.94 | 52.78 | 40.70 | 66.93 | |||||||||||||
YRS | 26 | 26 | 24 | 27 | 25 | 25 | 24 | 25 | 24 | 25 | 27 | 25 | 20 |