YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 27.40 | 27.40 | k | |
1979 | 22.60 | b | 30.24 | a | 40.31 | b | ----- | z | ----- | z | 62.22 | 67.69 | 64.60 | 60.28 | 52.32 | 33.12 | 32.89 | 46.63 | b | |||||||
1980 | 30.43 | a | 35.86 | 36.21 | 43.97 | a | 53.23 | a | 66.23 | 71.58 | 68.77 | 62.50 | a | 48.73 | 38.72 | 39.87 | 49.68 | |||||||||
1981 | 33.89 | 34.41 | a | 38.90 | 50.90 | 53.20 | a | 66.80 | 68.11 | 63.74 | 59.52 | 48.69 | 42.25 | 33.69 | 49.51 | |||||||||||
1982 | 29.74 | 28.73 | 38.84 | 45.82 | 52.64 | c | 59.55 | 66.71 | 66.79 | 59.23 | 47.00 | 36.50 | 31.12 | c | 46.89 | |||||||||||
1983 | 31.26 | 33.46 | a | 37.05 | 41.26 | a | 50.84 | 58.72 | 68.05 | 68.87 | 62.83 | 50.89 | 38.83 | 25.84 | f | 49.28 | a | |||||||||
1984 | 25.48 | 31.41 | 34.74 | 41.80 | b | 57.66 | 62.97 | 67.37 | 66.82 | 58.07 | 43.91 | b | 37.25 | 30.34 | 46.49 | |||||||||||
1985 | 25.08 | 30.25 | 39.34 | b | 47.72 | 54.98 | 62.25 | 67.56 | 66.97 | 56.96 | b | 49.48 | 38.67 | 29.18 | 47.37 | |||||||||||
1986 | 35.90 | 35.93 | 42.87 | 47.85 | 53.13 | a | 61.98 | 66.47 | 65.79 | 58.03 | 47.10 | b | 35.72 | 30.16 | 48.41 | |||||||||||
1987 | 27.86 | b | 32.27 | 35.56 | 46.65 | 54.08 | 63.52 | 67.19 | 64.81 | 57.32 | 50.60 | 37.07 | 27.48 | b | 47.03 | |||||||||||
1988 | 23.44 | 33.95 | 34.94 | 45.93 | 53.21 | 63.75 | 66.13 | 65.73 | 57.48 | 50.92 | 37.12 | 27.82 | 46.70 | |||||||||||||
1989 | 30.47 | 28.71 | b | 45.47 | 49.63 | 56.87 | 60.55 | 67.02 | a | 64.92 | 58.50 | 48.62 | b | 38.59 | a | 27.68 | 48.09 | |||||||||
1990 | 28.42 | 30.80 | 39.63 | 47.45 | 53.67 | a | 66.27 | 65.10 | 63.69 | 61.32 | 50.10 | 39.43 | 27.00 | e | 47.74 | |||||||||||
1991 | 29.65 | 34.88 | 38.63 | 46.53 | a | 56.61 | 62.48 | b | 65.03 | a | 64.69 | 58.62 | 50.77 | a | 34.07 | a | 30.37 | 47.69 | ||||||||
1992 | 29.08 | 34.86 | 40.15 | 50.32 | 55.23 | 60.02 | 65.25 | a | 63.61 | 59.82 | 51.78 | a | 32.84 | a | 26.92 | m | 49.36 | a | ||||||||
1993 | 30.65 | h | 32.65 | h | 40.93 | i | 46.74 | i | 54.91 | c | 63.04 | d | 68.17 | e | 64.70 | c | 57.77 | d | 46.42 | g | 34.16 | h | 29.75 | e | 56.39 | f |
1994 | 30.55 | i | 32.14 | f | 40.77 | i | 48.07 | i | 56.41 | d | 66.37 | c | 67.12 | b | 66.98 | c | 59.34 | e | 47.66 | i | 37.17 | i | 34.18 | f | 63.24 | g |
1995 | 31.00 | e | 37.86 | g | 39.79 | g | 43.07 | g | 51.72 | h | 59.07 | h | 65.15 | d | 68.00 | b | 58.80 | e | 49.10 | g | 41.07 | i | 30.16 | i | 55.74 | h |
1996 | 30.86 | j | 36.73 | i | 36.33 | e | 47.40 | i | 61.86 | i | 64.56 | f | 67.80 | d | 65.41 | c | 56.90 | f | 48.85 | h | 39.98 | g | 31.46 | f | 56.51 | i |
1997 | 25.93 | j | 30.09 | f | 40.56 | g | 41.82 | e | 54.13 | d | 62.27 | d | 67.34 | b | 66.25 | e | 63.12 | d | 49.11 | i | 33.16 | h | 29.35 | g | 59.15 | f |
1998 | 32.90 | j | 33.95 | h | 36.92 | f | 43.07 | i | 57.67 | d | 64.88 | e | 68.65 | d | 65.38 | e | 62.90 | d | 50.02 | h | 41.05 | h | 33.00 | g | 63.90 | g |
1999 | 34.02 | f | 37.46 | c | 42.16 | i | 43.88 | i | 53.68 | f | 62.04 | c | 67.82 | c | 65.55 | a | 57.81 | d | 49.30 | i | 44.00 | g | 29.18 | i | 58.14 | g |
2000 | 33.93 | h | 38.30 | f | 40.83 | k | 49.41 | h | 58.90 | f | 65.09 | h | 68.10 | 67.69 | b | 60.59 | h | 49.22 | h | 31.98 | b | 28.62 | f | 55.92 | i | |
2001 | 26.10 | g | 32.52 | e | 39.07 | h | 49.68 | h | 54.27 | i | 65.31 | i | 69.97 | b | 66.08 | e | 61.60 | d | 51.42 | g | 40.38 | f | 29.90 | j | 57.54 | h |
2002 | 29.55 | 29.95 | h | 36.61 | i | 51.07 | g | 57.75 | g | 67.67 | d | 68.45 | b | 67.63 | e | 60.00 | e | 46.05 | 36.38 | e | 28.46 | d | 50.52 | d | ||
2003 | 35.67 | g | 31.93 | f | 39.11 | l | 46.74 | g | 57.25 | a | 59.95 | k | 70.69 | d | 67.12 | a | 58.58 | f | 53.17 | h | 37.81 | f | 30.14 | c | 56.30 | h |
2004 | 31.39 | 28.34 | g | 43.69 | 43.97 | 56.47 | 62.20 | 65.13 | 62.73 | g | 58.78 | 48.29 | 36.72 | c | 30.61 | c | 47.72 | b | ||||||||
2005 | 33.90 | b | 33.20 | 35.64 | c | 44.77 | h | 53.81 | 61.68 | 67.05 | 64.61 | 60.78 | 49.30 | c | 38.85 | 29.45 | 48.03 | a | ||||||||
2006 | 32.73 | ----- | z | 38.19 | b | 49.98 | 57.57 | b | 66.08 | 68.55 | 65.13 | a | 54.88 | 47.47 | 39.77 | b | 28.68 | 49.91 | a | |||||||
2007 | 23.45 | a | 33.25 | 41.71 | 44.77 | b | ----- | z | 62.07 | 66.81 | g | 69.36 | b | 60.80 | g | 48.67 | k | 38.52 | i | 28.22 | h | 45.77 | f | |||
2008 | 24.11 | h | 32.27 | e | 36.26 | f | 42.55 | h | 52.33 | g | 62.63 | d | 67.81 | b | 64.40 | e | 58.33 | d | 49.71 | g | 38.83 | f | 29.90 | f | 57.09 | g |
2009 | 32.52 | d | 34.70 | e | 40.20 | f | 43.63 | g | 55.15 | 61.60 | 67.61 | 64.76 | ----- | z | ----- | z | 39.32 | ----- | z | 50.81 | e | |||||
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.15 | k | ----- | z |
2011 | 30.36 | i | 26.30 | m | 44.27 | p | 47.08 | q | 55.75 | m | 66.88 | i | 71.10 | e | 69.89 | c | 58.59 | h | 49.88 | o | 38.15 | g | 27.23 | t | 70.49 | j |
2012 | 31.21 | s | 31.96 | c | 44.06 | 48.31 | q | ----- | z | 67.76 | c | 70.60 | 67.37 | 59.87 | 49.04 | f | ----- | z | ----- | z | 56.94 | f | ||||
2013 | 25.19 | 29.04 | 39.19 | 45.41 | a | 54.45 | a | 66.77 | 67.68 | 65.97 | 60.98 | 46.56 | 35.48 | d | 29.88 | a | 47.22 | |||||||||
2014 | 31.27 | 34.45 | 41.08 | a | 46.33 | 53.35 | 64.12 | 68.11 | 64.44 | 62.30 | 52.18 | 45.88 | d | 30.37 | a | 49.49 | ||||||||||
2015 | 31.87 | 33.32 | 42.90 | 46.88 | 52.52 | 61.27 | 67.56 | 67.31 | 63.68 | 52.16 | 36.28 | 33.68 | f | 50.52 | a | |||||||||||
2016 | 26.21 | n | 39.33 | e | 40.87 | d | 44.86 | p | 52.10 | ----- | z | 69.08 | 65.44 | g | 66.86 | w | 53.42 | 40.48 | 29.82 | 46.44 | e | |||||
2017 | 30.27 | 37.89 | 44.13 | l | ----- | z | ----- | z | ----- | z | ----- | z | 64.07 | p | 59.62 | 50.40 | b | 44.43 | 33.68 | 42.72 | f | |||||
2018 | 32.27 | a | 34.46 | 40.52 | h | 48.15 | 59.48 | 66.82 | 67.92 | a | 65.85 | 61.45 | a | 51.47 | p | 35.60 | 29.19 | 50.12 | b | |||||||
2019 | 30.77 | 31.94 | s | 38.18 | 45.11 | k | 50.21 | 62.55 | k | 66.83 | m | ----- | z | ----- | z | 32.50 | r | 35.42 | 30.29 | 36.97 | g | |||||
2020 | 29.98 | ----- | z | 41.16 | 45.52 | ----- | z | ----- | z | ----- | z | 67.92 | 57.20 | 48.77 | 40.03 | 29.35 | 44.99 | d | ||||||||
2021 | 28.40 | 29.34 | 37.57 | a | 44.17 | a | 54.16 | 64.92 | d | ----- | z | ----- | z | 62.08 | j | 49.16 | ----- | z | ----- | z | 43.96 | e | ||||
2022 | 26.00 | u | 27.80 | 35.03 | a | 50.95 | s | 56.61 | q | ----- | z | 69.92 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 31.42 | j | |
2023 | 28.71 | 32.79 | u | ----- | z | 44.17 | u | ----- | z | ----- | z | 69.31 | 68.31 | e | 61.07 | 49.28 | a | 39.85 | 32.31 | 49.83 | e | |||||
2024 | 28.03 | 37.96 | p | 38.36 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.03 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.50 | 32.99 | 39.22 | 46.21 | 54.65 | 63.48 | 67.79 | 66.21 | 59.73 | 49.38 | 37.82 | 30.26 | 47.87 | |||||||||||||
S.D. | 3.22 | 2.90 | 2.97 | 2.67 | 2.19 | 2.47 | 1.61 | 1.66 | 2.08 | 2.21 | 3.17 | 2.61 | 1.10 | |||||||||||||
SKEW | -0.47 | 0.11 | 0.25 | -0.10 | 0.15 | 0.16 | 0.33 | 0.37 | 0.05 | -0.37 | 0.48 | 1.92 | 0.55 | |||||||||||||
MAX | 35.90 | 39.33 | 45.47 | 50.90 | 59.48 | 67.76 | 71.58 | 69.89 | 63.68 | 53.42 | 45.88 | 39.87 | 49.68 | |||||||||||||
MIN | 22.60 | 27.80 | 34.74 | 41.26 | 50.21 | 58.72 | 65.03 | 63.61 | 54.88 | 43.91 | 31.98 | 27.00 | 46.49 | |||||||||||||
YRS | 31 | 29 | 28 | 23 | 29 | 32 | 38 | 38 | 34 | 26 | 29 | 27 | 13 |