YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1978 | ----- | z | ----- | z | ----- | z | ----- | z | 54.18 | a | 65.20 | 72.95 | 68.85 | 64.35 | ----- | z | ----- | z | ----- | z | 65.11 | g | ||||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | 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 | 41.82 | 57.26 | 67.85 | 72.94 | 70.08 | 64.52 | a | 52.28 | a | 37.24 | a | 33.16 | 55.24 | c | ||||||
1998 | 36.44 | 34.81 | a | 37.83 | a | 44.10 | 60.28 | a | 62.69 | a | 73.18 | 72.60 | 67.73 | 51.44 | ----- | z | 32.88 | a | 52.18 | a | ||||||
1999 | 36.17 | b | 40.09 | a | 43.72 | a | 41.72 | c | 54.78 | b | 64.48 | 73.92 | 70.31 | 58.45 | a | 52.37 | a | 49.29 | b | 36.48 | 51.81 | |||||
2000 | 36.03 | a | 40.09 | 41.45 | 50.77 | d | 60.82 | a | 67.18 | 75.36 | b | 74.26 | 62.23 | 50.42 | a | 32.40 | 31.11 | 51.84 | ||||||||
2001 | 32.47 | 31.30 | 39.60 | a | 50.17 | c | 57.37 | 68.74 | a | 76.24 | 72.48 | 65.13 | 51.55 | a | 44.75 | 34.23 | a | 52.00 | ||||||||
2002 | 32.35 | a | 34.36 | 34.20 | c | 50.75 | 55.36 | b | 71.65 | 77.74 | 69.88 | b | 63.50 | 45.63 | a | 38.87 | 36.62 | a | 50.91 | |||||||
2003 | 39.82 | 30.63 | a | 40.98 | b | 50.62 | 57.24 | 62.17 | 77.61 | c | 73.69 | d | 61.26 | c | 55.97 | b | 37.05 | 36.31 | 51.94 | |||||||
2004 | 35.05 | 32.73 | a | 46.84 | 47.95 | 59.31 | 63.53 | a | 70.71 | 67.61 | 63.42 | 51.21 | 39.35 | 36.58 | 51.19 | |||||||||||
2005 | 36.90 | 36.46 | 40.65 | 47.82 | 57.44 | 66.80 | 76.48 | 69.94 | 63.87 | 51.66 | 44.18 | 32.29 | 52.04 | |||||||||||||
2006 | 38.73 | 31.30 | 37.97 | 51.53 | 59.95 | 71.40 | 74.18 | 70.13 | 57.08 | 50.07 | b | 41.78 | 33.37 | 51.46 | ||||||||||||
2007 | 25.56 | 34.09 | 44.95 | a | 46.03 | 57.73 | 67.68 | 75.02 | 72.59 | i | 63.78 | 53.45 | 41.80 | 28.16 | 48.93 | a | ||||||||||
2008 | 29.11 | 33.84 | 38.85 | 45.30 | 55.38 | a | 66.95 | 75.15 | 69.56 | 59.80 | 50.90 | 44.63 | 29.69 | 49.93 | ||||||||||||
2009 | 35.23 | a | 38.52 | 41.85 | 44.19 | a | 57.10 | a | 62.88 | 69.29 | 68.71 | 60.87 | 41.39 | 43.10 | 26.30 | a | 49.12 | |||||||||
2010 | 32.97 | 27.46 | a | 40.26 | 47.26 | a | 51.78 | a | 67.50 | 72.47 | 72.21 | 65.52 | 53.55 | 39.52 | 36.15 | 50.55 | ||||||||||
2011 | 31.45 | 28.00 | 42.50 | 46.90 | 50.70 | a | 68.17 | 75.00 | 74.95 | 63.45 | 52.32 | 41.28 | 30.52 | 50.44 | ||||||||||||
2012 | 36.42 | 29.57 | 49.26 | 53.12 | 59.06 | 73.33 | 76.44 | 72.94 | 65.27 | 49.66 | 46.13 | 33.27 | 53.71 | |||||||||||||
2013 | 32.27 | 31.12 | 37.47 | 41.52 | 57.55 | a | 69.28 | 72.74 | 72.85 | 65.27 | 47.56 | 41.80 | c | 30.66 | 50.01 | |||||||||||
2014 | 34.08 | 29.95 | 40.13 | 48.23 | 55.57 | a | 67.05 | a | 72.45 | 69.35 | 63.73 | 54.69 | 37.42 | 33.76 | 50.53 | |||||||||||
2015 | 35.11 | 34.98 | 44.16 | 48.47 | 50.85 | 69.37 | 70.81 | 73.11 | h | 68.08 | 55.79 | 40.43 | 31.77 | 49.98 | a | |||||||||||
2016 | 34.08 | 36.48 | h | 41.81 | e | 47.43 | 52.80 | a | 70.95 | a | 74.35 | 69.89 | 64.31 | a | 57.90 | a | 47.52 | 28.77 | e | 53.62 | a | |||||
2017 | 34.21 | s | 40.69 | a | 47.57 | a | 47.69 | c | 54.50 | a | 69.03 | 73.47 | 68.45 | a | 63.15 | 50.65 | 45.83 | 36.47 | a | 54.32 | a | |||||
2018 | 36.47 | 33.86 | f | 41.77 | 46.13 | 59.08 | 70.13 | 72.57 | d | 70.48 | c | 67.08 | e | 49.55 | c | 38.79 | b | 35.48 | 53.41 | a | ||||||
2019 | 34.45 | a | 29.59 | 37.21 | 49.87 | 50.08 | 65.10 | a | 74.98 | 74.40 | 68.37 | 44.05 | b | 38.15 | c | 36.68 | 50.24 | |||||||||
2020 | 36.27 | 29.79 | 42.72 | d | 46.07 | 59.61 | 70.40 | 75.60 | 75.79 | 64.85 | 50.89 | 45.75 | 35.89 | 52.80 | ||||||||||||
2021 | 35.15 | a | 27.29 | 39.79 | 44.85 | 56.18 | 72.08 | 75.79 | 73.37 | e | 69.85 | 55.15 | 46.80 | 41.77 | 53.17 | |||||||||||
2022 | 34.03 | 28.41 | 41.22 | a | 49.00 | 57.73 | 70.33 | a | 76.79 | 75.61 | 69.53 | 54.82 | 36.38 | 33.07 | a | 52.24 | ||||||||||
2023 | 30.15 | 32.89 | 35.45 | 46.15 | 58.98 | 64.23 | 74.19 | 73.32 | 67.13 | 52.65 | 43.93 | 39.08 | 51.51 | |||||||||||||
2024 | 29.82 | 37.10 | 41.29 | 49.10 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.07 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 34.10 | 33.00 | 41.17 | 47.24 | 56.38 | 67.72 | 74.23 | 71.60 | 64.34 | 51.39 | 41.70 | 33.72 | 51.37 | |||||||||||||
S.D. | 3.13 | 4.07 | 3.50 | 3.02 | 3.03 | 3.06 | 2.08 | 2.39 | 3.09 | 3.64 | 4.09 | 3.48 | 1.17 | |||||||||||||
SKEW | -0.72 | 0.45 | 0.32 | -0.20 | -0.61 | -0.17 | -0.37 | 0.17 | -0.33 | -0.85 | -0.16 | -0.02 | 0.08 | |||||||||||||
MAX | 39.82 | 40.69 | 49.26 | 53.12 | 60.82 | 73.33 | 77.74 | 75.79 | 69.85 | 57.90 | 49.29 | 41.77 | 53.71 | |||||||||||||
MIN | 25.56 | 27.29 | 34.20 | 41.52 | 50.08 | 62.17 | 69.29 | 67.61 | 57.08 | 41.39 | 32.40 | 26.30 | 49.12 | |||||||||||||
YRS | 26 | 25 | 27 | 27 | 28 | 28 | 28 | 26 | 28 | 27 | 26 | 27 | 20 |