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 | 52.62 | k | 35.93 | b | 30.58 | f | 35.93 | k |
1979 | 21.92 | m | 37.25 | h | 47.37 | 49.57 | 58.37 | a | 65.98 | a | 72.66 | 70.57 | a | 66.73 | 55.95 | 38.37 | 42.05 | u | 58.40 | c | ||||||
1980 | 32.06 | n | 41.95 | i | 43.33 | b | 53.20 | 57.27 | 61.38 | 71.52 | 67.12 | a | 64.58 | 54.45 | a | 44.19 | a | 39.22 | o | 57.45 | c | |||||
1981 | 38.73 | a | 41.53 | i | 45.65 | d | 51.90 | d | 55.77 | a | 62.74 | a | 68.90 | 73.34 | 64.18 | 51.15 | 45.03 | l | 38.11 | i | 56.93 | c | ||||
1982 | 34.58 | a | 37.60 | d | 43.25 | g | 46.88 | a | 55.45 | b | 65.85 | c | 69.58 | 71.53 | a | 61.25 | b | 50.71 | e | 39.88 | f | 36.28 | f | 54.83 | c | |
1983 | 42.48 | f | 43.27 | d | 46.73 | 48.08 | 57.43 | c | 63.63 | d | 69.60 | b | 74.64 | b | 60.73 | b | 54.77 | 45.23 | o | 31.82 | q | 57.65 | c | |||
1984 | 34.37 | p | 40.40 | n | 46.91 | h | 47.23 | b | 55.82 | a | 61.11 | b | 72.86 | c | 72.93 | a | 61.02 | a | 49.12 | b | 41.39 | p | 28.73 | t | 60.01 | e |
1985 | 29.93 | p | 36.50 | m | 41.73 | p | 53.47 | a | 58.35 | a | 66.41 | a | 76.47 | b | 68.76 | 56.83 | 51.78 | d | 25.38 | r | 27.50 | r | 61.72 | e | ||
1986 | 40.06 | o | 41.39 | n | 49.67 | e | 48.50 | a | 58.90 | f | 69.83 | f | 69.44 | g | 75.95 | a | 57.44 | c | 55.23 | e | 42.72 | n | 34.50 | n | 57.36 | g |
1987 | 31.18 | n | 40.53 | k | 47.00 | o | 56.72 | e | 61.18 | a | 68.86 | a | 69.60 | 69.29 | 67.55 | a | 57.19 | e | 44.56 | m | 32.23 | k | 64.34 | e | ||
1988 | 32.85 | 42.02 | a | 44.61 | 52.83 | 57.17 | e | 65.98 | 73.21 | 70.58 | 63.60 | 61.58 | 43.18 | 33.90 | 53.46 | |||||||||||
1989 | 35.48 | a | 27.20 | a | 44.48 | 53.13 | 55.52 | 66.95 | 71.79 | 68.40 | 62.85 | 52.16 | 44.46 | b | 35.98 | i | 52.95 | a | ||||||||
1990 | 37.85 | d | 37.22 | c | 45.76 | 56.32 | 56.15 | a | 65.73 | 75.39 | 72.23 | a | 68.34 | a | 52.87 | 44.25 | f | 28.48 | f | 56.79 | b | |||||
1991 | 32.35 | a | 46.21 | i | 43.05 | 48.93 | 52.84 | 60.72 | 72.08 | 74.10 | b | 66.37 | 53.28 | a | 44.04 | c | 39.16 | i | 54.78 | b | ||||||
1992 | ----- | z | 45.79 | e | 48.86 | c | ----- | z | 63.07 | a | 68.96 | b | 69.84 | b | 72.44 | 63.91 | c | 55.68 | c | 40.00 | c | 32.18 | f | 58.73 | c | |
1993 | 26.95 | k | 29.87 | i | 46.82 | a | 47.82 | e | 62.50 | d | 62.92 | 63.31 | 68.10 | a | 63.62 | b | 54.70 | c | 34.90 | f | 39.46 | r | 58.72 | d | ||
1994 | 39.89 | l | 36.85 | h | 47.04 | c | 52.58 | e | 58.35 | d | 63.63 | 74.41 | d | 70.74 | d | 67.72 | g | 51.26 | j | 38.90 | i | 36.85 | r | 61.12 | f | |
1995 | 38.41 | o | 44.63 | m | 44.50 | e | 47.67 | d | 56.92 | e | ----- | z | 71.85 | a | 68.05 | 67.14 | b | 50.68 | c | 44.22 | e | 43.68 | t | 56.38 | d | |
1996 | 37.97 | m | 38.25 | a | 45.53 | a | 50.91 | a | 54.73 | c | 63.28 | 74.45 | a | 72.60 | b | 60.98 | c | 53.32 | c | 43.37 | d | 37.98 | d | 54.13 | a | |
1997 | 34.70 | d | 38.86 | 46.05 | c | 49.15 | c | 61.15 | 62.95 | 70.92 | 71.84 | 63.57 | b | 51.48 | c | 42.35 | f | 34.55 | j | 55.07 | b | |||||
1998 | 37.42 | m | 40.05 | i | 43.82 | a | 47.69 | a | 52.92 | a | 61.00 | 74.18 | 70.92 | 67.86 | a | 50.90 | a | 44.12 | f | 36.31 | j | 58.66 | d | |||
1999 | 39.08 | l | 38.97 | j | 42.97 | 45.55 | a | 52.67 | e | ----- | z | 71.05 | a | 72.45 | c | 63.09 | b | 55.65 | d | 50.28 | a | 37.98 | j | 56.71 | d | |
2000 | 36.48 | k | 43.17 | e | 43.11 | c | 53.75 | b | 57.43 | b | 66.87 | 72.45 | a | 71.68 | c | 62.67 | a | 53.05 | c | 36.54 | b | 35.55 | c | 54.21 | a | |
2001 | 36.53 | a | 38.25 | d | 46.91 | b | 48.05 | 60.98 | c | 63.48 | 70.74 | b | 73.57 | d | 66.29 | a | 53.13 | a | 45.55 | b | 37.15 | k | 54.86 | a | ||
2002 | 36.37 | l | 39.63 | i | 41.62 | e | 49.36 | b | 56.06 | f | 66.60 | f | 76.48 | 67.72 | b | 63.81 | d | 46.73 | e | 42.31 | d | 36.47 | l | 55.43 | e | |
2003 | 39.98 | k | 35.95 | i | 46.54 | c | ----- | z | 55.67 | b | 66.78 | a | 76.12 | c | 73.14 | b | 66.00 | b | 54.38 | f | ----- | z | 38.28 | m | 64.04 | f |
2004 | 36.53 | m | 39.82 | l | 49.58 | 51.68 | 56.52 | c | 64.91 | b | 74.28 | b | 74.63 | a | 62.65 | c | 52.13 | d | 41.81 | c | 39.50 | a | 56.77 | b | ||
2005 | 37.46 | d | 38.37 | b | 46.84 | 50.07 | 58.95 | 62.57 | 74.61 | 73.94 | 61.50 | a | 53.87 | 40.26 | a | 33.27 | c | 52.64 | ||||||||
2006 | 41.12 | c | 36.82 | c | 42.02 | a | 49.07 | b | 59.02 | b | 66.45 | 76.83 | e | 70.16 | b | 63.82 | b | 50.63 | e | 43.43 | c | 36.67 | e | 53.00 | ||
2007 | 32.54 | g | 38.45 | f | 46.19 | e | 46.79 | i | 58.79 | j | 64.09 | g | 77.02 | d | 70.24 | f | 62.19 | f | 50.74 | f | 42.74 | g | 35.94 | e | 53.05 | i |
2008 | 30.02 | g | 40.67 | f | 41.36 | c | 44.58 | e | 57.36 | f | 60.00 | j | 72.12 | k | 70.92 | k | 62.14 | e | 53.06 | m | 46.11 | g | 32.00 | d | 45.02 | h |
2009 | 32.21 | g | 39.27 | b | 40.78 | b | 48.84 | b | 58.16 | f | 66.24 | c | 76.04 | c | 74.10 | f | 68.09 | g | 50.24 | h | 41.86 | i | 30.82 | n | 54.23 | g |
2010 | 41.93 | i | 41.90 | g | 45.28 | f | 47.46 | c | 52.02 | e | 62.08 | e | 71.86 | b | 70.75 | a | 63.95 | b | 54.89 | h | 41.75 | j | 37.75 | k | 61.35 | f |
2011 | 36.95 | c | 36.06 | c | 43.98 | 45.70 | g | 52.36 | i | 61.54 | e | 68.45 | i | 72.73 | a | 68.15 | c | 53.28 | d | 42.19 | f | 33.89 | m | 53.24 | e | |
2012 | 39.69 | b | 38.83 | f | 44.57 | i | 52.48 | b | 56.75 | c | 63.31 | c | 73.62 | c | 75.70 | c | 67.12 | e | 54.10 | j | 43.24 | m | 39.33 | k | 61.24 | e |
2013 | 33.61 | i | 39.96 | d | 45.68 | c | 49.21 | f | 58.62 | g | 64.89 | b | 77.31 | d | 73.74 | d | 66.10 | d | 49.29 | q | 41.58 | e | 30.98 | d | 55.03 | d |
2014 | 38.07 | c | 35.85 | a | 47.60 | b | 51.07 | a | 58.69 | e | 64.88 | d | 79.34 | c | 74.70 | c | 67.02 | f | 60.12 | j | 38.74 | i | 40.87 | e | 54.56 | c |
2015 | 41.16 | f | 45.76 | a | 49.97 | 50.59 | a | 60.44 | 73.00 | 75.50 | a | 74.62 | a | 63.28 | a | 58.88 | a | 40.57 | b | 38.79 | b | 57.40 | a | |||
2016 | 37.50 | j | 45.88 | i | 46.54 | c | 56.93 | g | 60.73 | 67.65 | 71.88 | b | 72.33 | a | 62.46 | b | 54.29 | c | 49.27 | b | 29.95 | c | 57.23 | c | ||
2017 | 28.06 | e | 42.68 | i | 47.33 | d | 50.23 | b | 58.12 | o | 67.29 | d | 78.80 | p | 76.34 | c | 66.30 | c | 51.06 | d | 46.33 | g | 29.38 | o | 55.23 | e |
2018 | ----- | z | ----- | z | 44.11 | d | 50.95 | h | 63.07 | c | 65.50 | d | 76.10 | a | 74.02 | 61.45 | 52.89 | c | 43.84 | k | 36.19 | r | 62.45 | e | ||
2019 | ----- | z | 33.58 | i | 40.83 | b | 52.98 | g | 59.44 | f | 65.62 | e | 71.46 | f | 74.17 | g | 64.85 | f | 49.35 | e | 42.23 | f | 40.19 | j | 51.93 | i |
2020 | 40.50 | k | 43.34 | j | 44.25 | i | 58.17 | x | 59.77 | i | 67.87 | g | 73.96 | e | 75.35 | e | 68.10 | d | 57.35 | h | 44.90 | i | 38.63 | l | 72.47 | i |
2021 | 41.00 | o | 39.62 | l | 45.16 | l | 53.07 | g | 59.48 | d | 73.60 | 79.29 | 74.26 | 64.88 | b | 55.29 | e | 48.05 | j | 39.21 | j | 67.80 | f | |||
2022 | 37.45 | i | 41.20 | e | 47.26 | b | 46.63 | 54.57 | c | 64.02 | b | 72.83 | d | 77.27 | 67.52 | f | 58.33 | a | 36.27 | b | 33.83 | d | 53.22 | b | ||
2023 | 37.18 | c | 37.33 | a | 37.65 | a | 48.38 | b | 59.59 | c | 67.02 | f | 75.58 | a | 74.10 | u | ----- | z | ----- | z | ----- | z | ----- | z | 49.28 | f |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 36.11 | 39.07 | 45.19 | 50.01 | 57.64 | 65.10 | 73.39 | 72.33 | 64.01 | 53.40 | 42.28 | 35.33 | 53.04 | |||||||||||||
S.D. | 3.27 | 4.18 | 2.75 | 2.86 | 2.94 | 2.96 | 3.13 | 2.56 | 2.80 | 2.98 | 3.84 | 3.38 | 0.41 | |||||||||||||
SKEW | -0.86 | -0.76 | -0.50 | 0.46 | 0.01 | 0.93 | -0.57 | -0.29 | -0.45 | 0.45 | 0.16 | 0.04 | 0.14 | |||||||||||||
MAX | 41.12 | 45.79 | 49.97 | 56.72 | 63.07 | 73.60 | 79.34 | 77.27 | 68.34 | 61.58 | 50.28 | 40.87 | 53.46 | |||||||||||||
MIN | 28.06 | 27.20 | 37.65 | 44.58 | 52.02 | 60.72 | 63.31 | 67.12 | 56.83 | 46.73 | 35.93 | 29.95 | 52.64 | |||||||||||||
YRS | 15 | 19 | 37 | 35 | 35 | 37 | 40 | 40 | 38 | 34 | 20 | 13 | 3 |