YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1978 | ----- | z | 33.36 | c | 42.35 | 47.60 | 53.13 | a | 66.61 | b | 72.97 | ----- | z | 58.17 | 50.10 | a | 37.03 | 17.00 | o | 51.26 | c | |||||
1979 | 16.38 | e | 18.42 | b | 32.54 | e | 45.15 | c | 49.75 | c | 59.32 | h | 70.73 | i | 66.70 | h | 61.18 | h | 48.22 | h | 29.55 | h | 22.76 | n | 32.45 | g |
1980 | 30.92 | f | 31.29 | h | 36.38 | j | 44.79 | f | 53.04 | h | 65.38 | f | 73.25 | c | 69.74 | d | 59.92 | e | 45.50 | e | 38.43 | p | 30.00 | q | 62.10 | h |
1981 | 29.68 | 29.67 | m | 35.76 | j | 50.00 | e | 55.43 | a | 70.29 | b | 73.17 | a | 70.68 | f | 60.50 | x | 43.40 | k | 40.28 | e | 30.57 | j | 53.14 | f | |
1982 | 24.35 | k | 29.15 | a | 38.21 | c | 44.93 | a | 56.45 | b | 64.93 | b | 71.00 | c | 68.90 | a | 62.70 | c | 48.11 | c | 35.23 | h | 29.00 | 51.34 | b | |
1983 | 27.57 | c | 33.48 | g | 39.82 | c | 41.13 | 51.64 | t | 64.16 | k | 70.83 | g | 71.62 | g | 62.32 | b | 51.46 | g | 38.20 | 27.36 | t | 41.81 | g | ||
1984 | 20.58 | s | 26.08 | c | 36.13 | 41.40 | 58.30 | d | 64.03 | a | 73.30 | a | 71.71 | 63.18 | b | 44.00 | b | 35.38 | d | 30.25 | c | 49.43 | a | |||
1985 | 28.93 | a | 25.35 | b | 36.21 | b | 46.90 | a | 57.50 | c | 66.53 | 72.58 | 71.81 | 59.38 | a | 47.83 | b | 39.32 | b | 30.94 | n | 50.21 | a | |||
1986 | 28.17 | g | 34.48 | c | 41.32 | 47.34 | a | 53.87 | 64.27 | 69.10 | a | 71.53 | a | 58.60 | 46.00 | 38.13 | 27.10 | b | 50.16 | a | ||||||
1987 | 22.48 | 32.40 | c | 35.52 | 48.47 | 57.75 | c | 67.81 | c | 70.00 | 69.17 | a | 60.72 | a | 53.24 | f | 35.93 | 26.92 | f | 50.03 | b | |||||
1988 | 21.37 | a | 29.48 | b | 34.23 | 44.67 | 55.35 | 68.47 | 75.32 | 72.32 | 60.67 | 54.03 | 40.83 | a | 28.17 | b | 48.74 | |||||||||
1989 | 21.45 | 28.24 | c | 40.93 | a | 50.76 | a | 58.65 | 64.07 | 73.60 | a | 69.55 | 63.10 | 52.11 | m | 38.73 | h | ----- | z | 52.26 | c | |||||
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.29 | 71.04 | c | 64.72 | a | ----- | z | 35.16 | k | 24.88 | f | 69.68 | i | |
1991 | 23.67 | p | 30.20 | c | 35.28 | b | 42.86 | b | 53.79 | c | 61.80 | 67.80 | f | 66.07 | b | 63.29 | i | 46.71 | c | 35.88 | f | 28.65 | k | 48.10 | e | |
1992 | 18.36 | i | 33.20 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.20 | k |
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 | 39.41 | b | 43.03 | a | 58.83 | b | 69.23 | 73.42 | 70.59 | b | 63.21 | b | 47.12 | g | 38.37 | c | 29.78 | h | 57.01 | d | ||
1998 | 32.11 | d | 33.27 | b | 38.82 | c | 44.11 | b | 57.64 | c | 64.04 | c | 75.93 | a | 75.74 | 64.79 | b | 51.07 | b | 37.92 | e | 27.27 | e | 50.23 | ||
1999 | 32.90 | b | 34.11 | 42.52 | b | 41.62 | f | 55.48 | b | 66.61 | b | 73.89 | d | ----- | z | 61.04 | c | 49.20 | a | 37.71 | b | 27.48 | d | 48.09 | b | |
2000 | 30.52 | 33.36 | a | 35.56 | f | 46.93 | c | 61.63 | a | 70.30 | c | 76.03 | b | 75.87 | a | 64.55 | a | 52.52 | 34.78 | c | 33.20 | a | 52.70 | a | ||
2001 | 30.81 | 35.38 | b | 43.29 | 50.36 | b | 61.22 | d | 69.75 | b | 76.06 | 73.52 | b | 67.21 | a | 55.11 | c | 44.27 | 30.17 | b | 53.10 | |||||
2002 | 28.28 | b | 30.04 | a | 36.97 | 52.45 | a | 58.47 | a | 72.20 | 78.72 | b | 73.52 | 63.60 | 51.03 | a | 38.43 | 32.79 | b | 51.37 | ||||||
2003 | 34.07 | a | 34.00 | 42.96 | d | 49.24 | a | 60.90 | 70.14 | a | 80.06 | 75.36 | c | 64.07 | c | 54.76 | n | 41.04 | c | 29.00 | o | 55.18 | b | |||
2004 | 24.90 | k | 31.26 | b | 46.68 | f | 48.83 | 60.58 | 69.74 | g | 75.89 | c | 72.87 | a | 62.97 | 52.30 | a | 39.40 | 31.20 | f | 55.51 | d | ||||
2005 | 36.48 | b | 37.61 | 41.90 | a | 49.52 | c | 60.13 | a | 65.97 | 77.37 | a | 71.90 | 65.69 | a | 54.03 | 42.27 | h | 30.87 | a | 53.77 | a | ||||
2006 | 31.15 | d | 32.75 | 39.97 | a | 50.60 | 62.13 | 72.83 | 79.00 | 72.81 | 61.21 | a | 50.17 | a | 41.75 | j | 27.67 | v | 55.26 | b | ||||||
2007 | ----- | z | ----- | z | ----- | z | 48.74 | k | 62.55 | i | 69.37 | k | 79.05 | k | 76.00 | b | 64.83 | g | ----- | z | ----- | z | 29.54 | g | 76.00 | k |
2008 | 27.72 | m | 33.00 | j | 39.24 | j | 45.82 | m | 53.41 | i | 69.21 | f | 77.78 | h | 74.28 | b | 64.35 | g | 50.38 | j | 41.00 | i | 31.43 | j | 74.28 | k |
2009 | 29.41 | n | 29.29 | 39.25 | k | 46.35 | m | 63.00 | f | 66.95 | j | 77.57 | h | 73.14 | b | 65.36 | h | 47.19 | o | 38.44 | n | 23.22 | m | 51.21 | j | |
2010 | 26.82 | i | 31.33 | j | 39.00 | j | 47.42 | k | 51.71 | j | 70.36 | h | 75.48 | j | 71.20 | f | 65.40 | j | 52.71 | n | 38.93 | p | 37.25 | s | ----- | z |
2011 | 26.79 | g | 30.50 | h | 40.80 | p | 43.12 | f | 54.77 | i | 69.48 | g | 74.04 | h | 75.42 | e | 65.92 | d | 53.08 | e | 39.15 | q | 29.75 | w | 64.81 | i |
2012 | 29.38 | w | ----- | z | ----- | z | ----- | z | 59.78 | v | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 26.77 | r | ----- | z |
2013 | 20.33 | y | ----- | z | ----- | z | 39.38 | v | 60.91 | t | 74.00 | q | 77.19 | e | 72.83 | b | ----- | z | ----- | z | ----- | z | ----- | z | 75.01 | j |
2014 | 27.93 | c | 36.58 | b | 42.30 | a | 48.41 | a | 57.03 | b | 69.60 | 78.42 | 71.83 | a | 68.53 | 54.94 | 37.70 | c | 34.26 | 52.29 | ||||||
2015 | 30.71 | ----- | z | 46.32 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 39.57 | 29.71 | 36.58 | h | ||||
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.93 | 78.15 | e | 73.55 | 65.93 | a | 56.65 | 52.09 | s | 29.88 | n | 70.04 | g | |||
2017 | 32.10 | k | 36.27 | q | 43.79 | g | 51.46 | f | 56.75 | o | 65.33 | u | 78.27 | a | 73.97 | b | 66.68 | b | 49.40 | a | 44.43 | 31.65 | 57.40 | f | ||
2018 | 32.94 | 34.71 | 40.35 | 50.70 | 59.71 | 68.28 | a | 79.81 | 76.13 | 69.20 | 50.30 | d | 37.30 | 30.00 | 52.45 | |||||||||||
2019 | 28.94 | 27.36 | 39.17 | a | 49.03 | 48.45 | 67.93 | b | 77.52 | 75.74 | 65.47 | 44.03 | 35.30 | 31.74 | 49.22 | |||||||||||
2020 | 27.68 | 29.66 | 37.10 | 38.00 | b | 50.58 | e | 61.00 | a | 74.77 | a | 79.81 | 64.23 | 52.39 | 39.00 | 28.67 | a | 48.57 | ||||||||
2021 | 29.39 | 32.54 | 36.68 | 44.07 | 47.40 | a | 63.74 | c | 72.04 | d | 67.83 | b | 60.19 | d | 49.87 | 39.73 | 34.65 | 48.18 | ||||||||
2022 | 29.39 | 27.11 | 38.75 | c | 40.12 | e | 54.17 | s | 66.50 | t | 78.00 | p | 75.00 | 69.50 | 52.71 | 36.27 | 31.16 | 44.44 | c | |||||||
2023 | 33.03 | 29.14 | 36.81 | 46.40 | e | 62.06 | 68.10 | 79.32 | 74.13 | 66.40 | 52.93 | c | 40.48 | a | 33.13 | 51.83 | ||||||||||
2024 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 28.88 | 31.02 | 39.11 | 46.54 | 56.75 | 67.48 | 75.31 | 72.84 | 63.67 | 50.54 | 38.67 | 30.59 | 50.60 | |||||||||||||
S.D. | 4.64 | 4.00 | 3.21 | 3.68 | 4.15 | 3.50 | 2.99 | 2.82 | 3.02 | 3.42 | 2.43 | 2.32 | 1.83 | |||||||||||||
SKEW | -1.02 | -1.00 | 0.07 | -0.53 | -0.73 | 0.26 | -0.17 | -0.14 | 0.06 | -0.32 | 0.67 | 0.13 | -0.05 | |||||||||||||
MAX | 36.48 | 37.61 | 46.32 | 52.45 | 62.13 | 75.93 | 80.06 | 79.81 | 69.50 | 56.65 | 44.43 | 34.65 | 53.10 | |||||||||||||
MIN | 16.38 | 18.42 | 32.54 | 38.00 | 47.40 | 61.00 | 69.10 | 66.07 | 58.17 | 44.00 | 34.78 | 27.10 | 48.18 | |||||||||||||
YRS | 23 | 28 | 27 | 28 | 27 | 26 | 30 | 33 | 31 | 26 | 25 | 19 | 10 |