YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.13 | 36.30 | d | 40.71 | j | |
1972 | 41.03 | a | 41.45 | 50.29 | 51.77 | 59.73 | a | 64.03 | 70.61 | 67.32 | 64.43 | 54.40 | a | 41.43 | 38.90 | 53.78 | ||||||||||
1973 | 34.27 | a | 37.54 | 36.87 | 42.80 | 56.52 | 66.63 | 69.87 | 68.42 | 65.53 | 59.90 | 47.27 | 41.84 | 52.29 | ||||||||||||
1974 | 37.06 | 39.25 | 45.71 | 50.43 | 62.81 | 74.00 | 67.68 | 65.52 | 63.27 | 54.58 | 46.87 | 36.29 | 53.62 | |||||||||||||
1975 | 38.71 | 37.57 | 40.68 | 42.73 | 52.63 | l | 67.03 | 68.25 | c | 67.78 | d | 62.63 | c | 56.96 | d | 50.87 | g | 40.26 | 52.26 | b | ||||||
1976 | 39.19 | d | 42.04 | e | 40.07 | b | 43.53 | k | 56.88 | g | 67.35 | d | 67.11 | l | 65.12 | f | 60.76 | e | 51.80 | a | 46.11 | c | 41.00 | 48.54 | d | |
1977 | 35.77 | 39.68 | 38.54 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.33 | d | 47.76 | a | 43.73 | a | 43.97 | f | ||
1978 | 37.63 | a | 36.00 | c | 42.96 | c | ----- | z | 60.76 | n | 67.33 | ----- | z | ----- | z | 59.42 | r | 57.93 | a | 42.83 | a | 35.27 | a | 45.71 | e | |
1979 | 31.62 | b | 37.91 | e | 38.31 | b | 49.12 | e | 50.74 | l | 67.37 | 71.45 | 67.52 | 67.47 | 60.61 | 41.62 | d | 42.90 | a | 52.35 | a | |||||
1980 | 38.26 | d | 41.11 | b | 38.44 | d | 42.91 | s | ----- | z | 71.53 | 71.16 | f | 69.35 | 67.27 | ----- | z | 41.95 | h | 44.92 | e | 52.98 | e | |||
1981 | 40.32 | f | 42.39 | e | 36.62 | e | 48.20 | o | ----- | z | 71.92 | r | 67.05 | i | 68.62 | j | 63.53 | k | 56.33 | j | 52.19 | d | 44.50 | i | 43.73 | i |
1982 | 37.57 | j | 41.94 | l | ----- | 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 | 33.40 | w | 49.33 | y | 54.67 | u | ----- | z | 74.64 | s | 74.78 | v | 71.29 | x | 64.90 | t | 53.22 | v | 48.17 | x | 39.67 | v | ----- | z |
2003 | 47.19 | o | 38.48 | g | 42.87 | h | 50.08 | q | 62.82 | t | 69.69 | q | 77.10 | u | 71.30 | u | 68.57 | w | 62.21 | q | ----- | z | 43.13 | p | ----- | z |
2004 | 40.65 | k | 38.38 | u | 50.90 | u | 56.62 | v | 64.50 | y | ----- | z | ----- | z | 67.50 | y | 68.67 | x | 53.85 | r | 47.29 | w | 37.80 | p | ----- | z |
2005 | 38.20 | p | 34.50 | p | 38.82 | t | ----- | z | 51.67 | y | 66.57 | w | ----- | z | 69.43 | x | ----- | z | 58.40 | u | 52.33 | x | 44.27 | p | ----- | z |
2006 | 43.00 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.60 | y | 62.33 | y | 46.00 | x | 39.15 | k | ----- | z |
2007 | 38.19 | j | 40.67 | j | 49.06 | n | ----- | z | ----- | z | 72.33 | x | ----- | z | 68.57 | x | ----- | z | ----- | z | ----- | z | 39.00 | x | ----- | z |
2008 | 37.45 | i | 43.53 | j | 45.91 | i | ----- | z | 60.75 | w | 72.64 | s | ----- | z | 69.43 | x | 64.33 | u | ----- | z | 55.88 | v | 37.08 | s | ----- | z |
2009 | 43.07 | b | 43.76 | c | 47.64 | f | 59.60 | y | ----- | z | ----- | z | ----- | z | ----- | z | 66.67 | r | 55.88 | n | 55.91 | s | 36.89 | m | 43.41 | j |
2010 | 41.56 | m | 37.86 | f | 43.58 | s | 50.73 | s | 61.26 | h | 72.20 | 69.81 | 69.93 | b | 69.79 | f | 58.50 | c | 46.03 | 45.39 | 60.31 | f | ||||
2011 | 40.06 | 36.33 | a | 48.21 | b | 53.00 | a | 59.00 | b | 71.50 | j | 70.09 | h | 70.00 | i | 65.93 | b | 59.93 | d | 46.36 | e | 36.87 | 49.52 | c | ||
2012 | 43.16 | 40.59 | b | 45.52 | 57.07 | a | 64.48 | 74.19 | d | 71.09 | i | 71.69 | e | 65.33 | c | 63.70 | u | 56.47 | k | 40.29 | 55.81 | c | ||||
2013 | 36.87 | 36.11 | 47.84 | 52.67 | 60.81 | 74.50 | 68.43 | h | 67.97 | b | 65.21 | a | 55.52 | 48.27 | 41.17 | b | 53.36 | a | ||||||||
2014 | 45.54 | e | 43.32 | 45.72 | b | 51.80 | 59.29 | 71.87 | 70.23 | 67.10 | a | 66.13 | 60.52 | 49.45 | a | 41.06 | 56.00 | |||||||||
2015 | 44.58 | 47.18 | 49.16 | 52.97 | a | 56.43 | c | 70.50 | b | 67.03 | 70.83 | a | 66.83 | 57.58 | 47.00 | d | 39.93 | c | 55.84 | |||||||
2016 | 38.53 | a | 45.80 | d | 48.32 | 50.70 | c | 57.29 | 74.41 | a | 71.84 | 65.71 | 65.93 | 61.65 | 51.56 | e | 41.90 | a | 56.14 | |||||||
2017 | 35.79 | c | 44.60 | c | 50.32 | 52.57 | 59.40 | a | 74.20 | 70.52 | 69.30 | a | 68.57 | i | 60.14 | x | 57.32 | b | 46.10 | b | 56.01 | b | ||||
2018 | 45.00 | b | 43.16 | c | 44.00 | h | 58.50 | j | 64.10 | b | 73.44 | e | 71.06 | 69.90 | 67.83 | 53.90 | 46.37 | 38.25 | c | 57.30 | b | |||||
2019 | 38.76 | b | 34.00 | c | 44.52 | 51.50 | 53.65 | 69.24 | a | 71.27 | a | 70.90 | 66.33 | 58.23 | a | 49.97 | 38.97 | 53.94 | ||||||||
2020 | 41.61 | 41.38 | 45.27 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.22 | h | 41.50 | j | ||
2021 | 40.61 | 41.89 | 43.33 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.13 | 41.88 | i | |||
2022 | 41.32 | 38.77 | b | 43.17 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 39.74 | 39.94 | i | ||
2023 | 35.19 | 35.68 | 38.97 | 50.52 | a | 59.26 | 66.57 | 77.39 | 71.32 | 67.47 | 61.77 | 50.63 | 42.29 | 54.75 | ||||||||||||
2024 | 37.26 | 39.66 | 39.56 | d | 50.08 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.64 | h | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 39.20 | 40.29 | 43.33 | 50.65 | 59.44 | 70.36 | 70.54 | 68.79 | 65.52 | 57.77 | 47.59 | 40.72 | 54.55 | |||||||||||||
S.D. | 3.55 | 3.39 | 4.75 | 3.69 | 3.12 | 3.44 | 2.53 | 1.92 | 1.94 | 2.90 | 3.81 | 2.95 | 1.38 | |||||||||||||
SKEW | 0.02 | 0.08 | 0.07 | -1.00 | 0.04 | -0.21 | 1.31 | -0.13 | -1.03 | -0.44 | 0.57 | -0.05 | -0.22 | |||||||||||||
MAX | 45.54 | 47.18 | 50.32 | 57.07 | 64.48 | 74.50 | 77.39 | 71.69 | 67.83 | 61.77 | 57.32 | 46.10 | 56.14 | |||||||||||||
MIN | 31.62 | 34.00 | 36.62 | 42.73 | 53.65 | 64.03 | 67.03 | 65.52 | 60.76 | 51.80 | 41.43 | 35.27 | 52.29 | |||||||||||||
YRS | 24 | 25 | 20 | 15 | 13 | 18 | 13 | 16 | 16 | 17 | 19 | 23 | 8 |