YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 86.87 | g | 89.65 | 86.47 | a | 75.47 | 71.19 | 47.43 | 36.42 | 67.77 | f | |||||
1989 | 31.74 | 37.50 | 55.06 | 65.67 | 72.42 | 80.93 | 90.68 | ----- | z | ----- | z | 67.13 | a | 51.86 | a | 37.90 | 59.09 | b | ||||||||
1990 | 38.16 | 44.43 | 53.54 | c | 63.47 | 70.00 | b | 86.83 | 87.31 | b | 86.10 | a | 82.23 | 64.67 | a | 49.40 | 30.65 | 63.07 | ||||||||
1991 | 31.32 | 45.07 | 48.00 | 58.00 | 71.31 | b | 81.23 | 87.42 | 87.00 | 77.97 | a | 67.93 | a | 44.77 | 37.42 | 61.45 | ||||||||||
1992 | 36.32 | 46.59 | 54.39 | 67.33 | 74.19 | 79.67 | 84.10 | a | 85.77 | 77.53 | 69.81 | 38.60 | 33.90 | 62.35 | ||||||||||||
1993 | 35.10 | b | 37.93 | 52.87 | a | 56.30 | 68.65 | 78.62 | a | 86.06 | 84.16 | 76.23 | ----- | z | 43.86 | a | 38.57 | a | 59.85 | a | ||||||
1994 | 41.27 | a | 42.07 | a | 58.07 | a | 62.00 | b | 77.37 | a | 88.29 | b | 92.00 | 90.00 | b | 80.63 | c | 63.79 | c | 45.48 | a | 39.57 | c | 65.04 | ||
1995 | 37.73 | a | 50.11 | a | 54.26 | d | 60.19 | c | 63.64 | c | 77.81 | d | 85.32 | c | 88.34 | b | 78.93 | c | 65.43 | a | 52.90 | 42.87 | a | 63.13 | ||
1996 | 35.14 | b | 43.93 | b | 53.45 | b | 63.36 | e | 74.48 | d | 84.86 | b | 91.69 | e | 90.90 | 78.27 | h | 66.00 | c | 50.31 | a | 36.10 | b | 62.75 | a | |
1997 | 36.36 | c | 41.64 | c | 58.71 | c | 58.62 | d | 72.31 | b | 82.85 | c | 87.15 | e | 84.22 | d | 77.92 | e | 66.54 | g | 49.27 | d | 37.30 | a | 62.40 | a |
1998 | 41.19 | d | 42.00 | b | 53.08 | e | 60.76 | e | 74.88 | e | 79.59 | h | 89.77 | e | 87.19 | e | 82.33 | c | 66.26 | d | 52.86 | b | 40.55 | b | 62.81 | a |
1999 | 41.63 | a | 47.12 | b | 62.66 | b | 62.06 | m | 69.82 | i | 81.83 | g | 90.92 | f | 86.21 | c | 77.78 | g | 72.33 | j | 62.82 | h | 40.16 | f | 59.40 | h |
2000 | 41.42 | g | 49.29 | e | 54.09 | i | 69.73 | h | 79.05 | i | 86.95 | j | 92.81 | j | 89.80 | p | 82.00 | j | 70.50 | i | 41.80 | j | 37.90 | k | 49.29 | k |
2001 | 38.86 | i | 47.37 | i | 55.33 | m | 65.95 | j | 74.74 | h | 87.29 | i | 89.55 | k | 86.67 | g | 85.29 | b | 76.43 | x | ----- | z | 39.58 | s | 85.29 | k |
2002 | 37.36 | i | 40.54 | b | 52.76 | f | 67.97 | a | 76.31 | e | 90.05 | h | 96.04 | c | 89.64 | c | 76.54 | d | 62.14 | c | 45.77 | h | 38.48 | 68.46 | d | |
2003 | 45.31 | b | 41.96 | d | 52.35 | e | 66.60 | o | 71.35 | e | 81.44 | e | 95.68 | 91.43 | j | 78.04 | c | 73.48 | d | 45.48 | i | 40.72 | f | 67.45 | d | |
2004 | 36.62 | e | 40.56 | d | 60.69 | b | 62.16 | e | 72.76 | b | 82.31 | a | 87.52 | d | 85.54 | e | 78.65 | d | 65.53 | a | 49.25 | b | 38.97 | 63.38 | ||
2005 | 43.35 | 44.50 | 52.28 | b | 64.33 | 73.94 | 79.80 | 93.29 | 85.42 | 79.52 | e | 67.84 | 53.20 | e | 35.77 | 64.44 | ||||||||||
2006 | 37.10 | 41.75 | 50.14 | c | 63.00 | a | 74.55 | 86.37 | 88.13 | 84.81 | 70.33 | 59.75 | c | 52.57 | b | 36.23 | 62.06 | |||||||||
2007 | 35.45 | 43.48 | a | 55.68 | 62.53 | 72.06 | 84.73 | 92.32 | 88.00 | 77.63 | 64.06 | 54.90 | 33.13 | 63.67 | ||||||||||||
2008 | 30.23 | 38.21 | 50.31 | e | 56.66 | a | 66.55 | 80.59 | a | 90.03 | 87.35 | 77.80 | 66.55 | 52.77 | 35.13 | 61.01 | ||||||||||
2009 | 36.39 | 43.64 | 52.60 | a | 57.63 | 72.29 | 75.33 | 87.71 | 86.06 | 79.43 | b | 58.16 | 52.73 | 30.81 | 61.07 | |||||||||||
2010 | 36.10 | a | 35.54 | b | 50.73 | a | 59.39 | b | 66.39 | 83.47 | 89.81 | 84.32 | 82.00 | a | 67.23 | 46.03 | 40.17 | a | 61.76 | |||||||
2011 | 33.32 | c | 36.82 | 51.20 | a | 55.79 | a | 64.26 | 81.93 | 86.29 | 88.61 | 79.03 | 63.97 | 48.23 | 40.65 | 60.84 | ||||||||||
2012 | 40.81 | 42.41 | 59.60 | a | 67.47 | 76.00 | ----- | z | 90.71 | 87.94 | 80.17 | 65.48 | 55.10 | 35.65 | 63.76 | a | ||||||||||
2013 | 31.81 | 38.25 | d | 51.77 | 55.47 | 71.26 | 86.60 | 89.97 | 86.13 | 77.33 | 59.68 | 48.00 | 31.10 | 60.61 | ||||||||||||
2014 | 37.03 | 42.46 | 53.48 | 59.50 | 69.42 | 83.34 | a | 90.13 | 80.55 | 78.90 | 65.48 | 51.07 | 39.94 | 62.61 | ||||||||||||
2015 | 40.77 | 49.04 | 59.13 | 61.43 | 65.03 | 85.40 | 84.39 | 87.39 | 80.47 | 69.30 | a | 48.55 | a | 35.06 | 63.83 | |||||||||||
2016 | 35.03 | 45.07 | 53.06 | 59.70 | 68.61 | 88.23 | 89.35 | 81.58 | g | 79.63 | c | 68.43 | a | 54.61 | b | 40.66 | b | 62.04 | a | |||||||
2017 | 35.29 | 47.67 | a | 59.39 | 59.87 | 69.30 | a | 86.90 | a | 89.16 | 86.35 | 79.23 | 63.72 | b | 56.27 | 40.71 | 64.49 | |||||||||
2018 | 40.48 | 40.86 | 51.10 | 59.87 | 74.40 | a | 85.10 | 94.26 | 88.29 | 83.27 | 61.29 | 45.13 | 36.35 | 63.37 | ||||||||||||
2019 | 35.61 | 38.86 | 49.73 | a | 63.36 | b | 63.87 | a | 77.87 | 88.58 | 89.40 | a | 82.60 | 60.58 | 52.07 | a | 36.20 | a | 61.56 | |||||||
2020 | 35.00 | 39.10 | 52.48 | 60.87 | 75.07 | a | 84.33 | 89.58 | 93.16 | 80.03 | 67.23 | 46.83 | ----- | z | 65.79 | a | ||||||||||
2021 | ----- | z | 39.39 | 48.26 | 62.13 | 74.19 | 89.03 | 93.39 | 88.29 | 84.23 | 62.23 | 52.73 | 41.23 | 66.83 | a | |||||||||||
2022 | 36.65 | 39.75 | 53.42 | 61.40 | 72.06 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.66 | g | |||||
2023 | ----- | z | ----- | z | 39.68 | 49.67 | 64.16 | 70.07 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.89 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 36.94 | 42.35 | 53.47 | 60.83 | 71.03 | 82.64 | 89.60 | 87.02 | 79.31 | 65.32 | 49.89 | 37.15 | 62.62 | |||||||||||||
S.D. | 3.62 | 3.76 | 4.43 | 3.89 | 3.99 | 4.30 | 3.03 | 2.42 | 2.92 | 3.56 | 4.04 | 3.22 | 1.35 | |||||||||||||
SKEW | 0.32 | 0.32 | -0.41 | -0.44 | -0.51 | -0.85 | 0.27 | 0.00 | -0.50 | 0.01 | -0.70 | -0.41 | 0.14 | |||||||||||||
MAX | 45.31 | 50.11 | 62.66 | 67.97 | 77.37 | 89.03 | 96.04 | 93.16 | 85.29 | 73.48 | 56.27 | 42.87 | 65.04 | |||||||||||||
MIN | 30.23 | 35.54 | 39.68 | 49.67 | 63.64 | 70.07 | 84.10 | 80.55 | 70.33 | 58.16 | 38.60 | 30.65 | 60.61 | |||||||||||||
YRS | 30 | 33 | 32 | 31 | 32 | 28 | 31 | 29 | 30 | 29 | 29 | 29 | 19 |