YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1982 | ----- | z | ----- | z | ----- | z | 40.82 | 61.48 | 60.32 | 71.11 | 66.61 | 57.88 | 48.58 | 29.35 | 22.65 | a | 50.98 | c | ||||||||
1983 | 17.15 | a | 25.09 | 32.92 | 40.40 | 51.73 | 64.88 | a | 72.87 | 72.23 | 60.77 | 47.92 | 33.73 | 4.63 | a | 43.69 | ||||||||||
1984 | 10.50 | 27.41 | 24.77 | a | 46.78 | 53.74 | 66.97 | 68.92 | 70.97 | 55.75 | 50.94 | 32.63 | 17.18 | 43.88 | ||||||||||||
1985 | 9.15 | 15.22 | a | 34.15 | 49.00 | 60.35 | 61.43 | 68.39 | 64.35 | 57.83 | 46.32 | 24.43 | 4.68 | a | 41.28 | |||||||||||
1986 | 14.44 | 13.95 | 32.55 | 49.50 | 59.02 | ----- | z | 71.82 | 65.16 | 58.70 | 47.18 | 28.05 | 20.68 | a | 41.91 | a | ||||||||||
1987 | 18.35 | 28.16 | 36.89 | 51.83 | 61.32 | 70.17 | a | 73.77 | 67.42 | a | 61.23 | 42.23 | ----- | z | 23.48 | 48.62 | a | |||||||||
1988 | 8.70 | a | 10.74 | 30.71 | 46.13 | 62.97 | 71.08 | 75.00 | 72.85 | 61.17 | 42.26 | 32.52 | 16.45 | 44.22 | ||||||||||||
1989 | 17.97 | a | 7.80 | 24.00 | 42.66 | a | 56.76 | 64.37 | 72.43 | a | 68.90 | a | 59.22 | 49.21 | 27.03 | 7.76 | 41.51 | |||||||||
1990 | 23.42 | 18.59 | 34.02 | 46.70 | 54.98 | 66.92 | 69.34 | 68.81 | 61.53 | 46.63 | 36.00 | 16.02 | 45.25 | |||||||||||||
1991 | 10.05 | 20.80 | 32.10 | 47.92 | 60.90 | a | 69.67 | 69.13 | 70.06 | 57.93 | 45.56 | 23.97 | 18.90 | 43.92 | ||||||||||||
1992 | 19.03 | 25.86 | 31.53 | 40.25 | 57.62 | a | 62.28 | 63.39 | 63.23 | 55.69 | a | 44.00 | a | 29.93 | 18.37 | 42.60 | ||||||||||
1993 | 10.76 | 14.32 | 26.65 | 40.23 | 54.66 | 60.90 | 67.56 | 67.50 | 51.67 | 42.58 | a | 28.35 | 18.08 | 40.27 | ||||||||||||
1994 | -0.31 | 9.40 | b | 30.81 | 42.19 | a | 56.98 | 66.28 | 66.89 | 65.10 | 61.48 | 49.10 | 34.84 | a | 22.08 | 42.07 | ||||||||||
1995 | 14.11 | 13.62 | b | 30.95 | a | 37.97 | 54.24 | 70.02 | a | 70.24 | b | ----- | z | ----- | z | 45.87 | 22.38 | b | 13.00 | a | 37.24 | b | ||||
1996 | 4.82 | a | 12.00 | 18.52 | b | 37.38 | b | 53.09 | c | 65.21 | b | 66.69 | b | 67.42 | a | 59.24 | a | 45.75 | a | 22.95 | 10.98 | d | 38.67 | |||
1997 | 7.00 | b | 17.87 | a | 27.17 | a | 40.79 | a | 50.27 | 67.14 | a | 67.97 | 64.71 | 59.55 | b | 46.62 | a | 27.53 | a | 25.24 | b | 41.82 | ||||
1998 | 15.67 | a | 29.68 | c | 30.43 | c | 47.98 | a | 62.48 | a | 62.19 | a | 69.83 | b | 69.32 | 63.50 | 48.18 | a | 35.27 | 21.35 | 46.32 | |||||
1999 | 6.57 | b | 23.96 | 30.66 | 46.14 | a | 58.69 | 65.18 | 72.58 | a | 66.43 | b | 57.27 | 44.50 | a | 37.98 | 21.32 | a | 44.27 | |||||||
2000 | 10.16 | 21.36 | 37.11 | 42.25 | 58.02 | 62.70 | 68.98 | a | 67.39 | 56.80 | 49.63 | 30.57 | a | 4.81 | 42.48 | |||||||||||
2001 | 14.69 | 8.32 | 24.66 | ----- | z | 56.97 | 65.15 | 70.21 | 69.32 | a | 56.70 | 44.73 | 42.55 | 24.90 | a | 43.47 | a | |||||||||
2002 | 21.07 | b | 23.44 | a | 21.23 | a | 41.63 | 50.03 | 67.35 | 73.50 | 67.37 | 61.12 | 40.42 | 30.18 | 21.90 | 43.27 | ||||||||||
2003 | 10.94 | 10.83 | b | 26.70 | a | 43.39 | b | 55.26 | 64.48 | 69.03 | 71.27 | a | 59.35 | c | 46.50 | a | 29.90 | a | 21.33 | a | 42.41 | |||||
2004 | 8.24 | d | 16.34 | a | 30.47 | 44.30 | 52.46 | c | 61.55 | b | 67.71 | b | 62.03 | a | 63.60 | a | 47.79 | c | 34.55 | 19.09 | b | 42.34 | ||||
2005 | 10.98 | 21.54 | 26.33 | a | 47.64 | a | 52.21 | ----- | z | 71.32 | 67.48 | a | 62.10 | 49.36 | c | 33.10 | 17.03 | a | 41.74 | a | ||||||
2006 | 25.08 | a | 15.57 | a | 29.97 | a | 48.59 | b | 57.83 | a | 67.28 | 74.34 | 68.55 | 55.97 | 41.76 | 34.12 | 25.95 | a | 45.42 | |||||||
2007 | 16.45 | 8.93 | 33.26 | 42.33 | a | 59.58 | 68.38 | 70.61 | 67.95 | 60.38 | 51.03 | 31.43 | 11.75 | a | 43.51 | |||||||||||
2008 | 9.85 | 10.34 | a | 21.66 | 40.33 | 52.65 | 64.17 | 69.00 | 67.02 | 60.03 | 45.60 | 31.90 | a | 9.53 | 40.17 | |||||||||||
2009 | -0.34 | 16.09 | 27.73 | a | 43.04 | c | 54.60 | 63.70 | 63.89 | 65.27 | 62.57 | 40.79 | 38.63 | 14.53 | 40.88 | |||||||||||
2010 | 10.10 | 14.86 | 36.24 | 50.83 | 57.58 | 64.62 | 71.66 | 71.39 | 55.33 | 48.50 | 31.75 | 13.16 | 43.83 | |||||||||||||
2011 | 7.56 | 14.16 | 24.32 | 41.18 | 53.84 | 64.67 | 73.87 | 68.47 | 57.67 | 49.84 | 35.28 | 22.23 | 42.76 | |||||||||||||
2012 | 17.03 | 23.78 | 43.47 | 45.22 | 59.61 | 67.15 | 74.70 | a | 67.31 | 57.40 | 42.97 | 32.75 | 20.71 | 46.01 | ||||||||||||
2013 | 12.21 | 13.50 | 21.19 | 35.75 | 54.29 | 64.80 | 69.76 | 68.39 | 61.00 | 46.21 | 27.62 | 6.81 | 40.13 | |||||||||||||
2014 | 1.34 | 2.38 | 18.34 | 37.47 | 55.71 | 67.12 | 67.90 | 68.53 | 57.67 | 44.68 | 21.23 | 21.97 | 38.69 | |||||||||||||
2015 | 11.68 | 4.64 | 29.58 | 45.38 | 56.40 | 65.78 | 69.89 | 65.85 | 64.63 | 47.37 | 37.83 | 28.89 | 43.99 | |||||||||||||
2016 | 11.85 | 18.67 | 36.18 | 43.38 | 57.23 | 67.20 | 70.85 | 70.23 | 62.43 | 49.00 | 40.10 | 17.08 | 45.35 | |||||||||||||
2017 | 15.79 | 24.82 | 28.40 | 45.12 | 54.50 | f | 66.75 | b | 69.90 | 64.31 | 62.10 | 48.90 | 28.30 | 13.79 | 42.56 | a | ||||||||||
2018 | 9.50 | 15.63 | i | 28.08 | 32.05 | b | 63.73 | 68.65 | 70.15 | 68.61 | 61.53 | 41.73 | 26.18 | 22.98 | 44.84 | a | ||||||||||
2019 | 12.35 | 8.62 | 22.66 | 42.17 | 52.06 | 64.71 | b | 71.18 | 66.76 | 61.33 | 43.90 | 25.68 | 18.13 | a | 40.80 | |||||||||||
2020 | 18.79 | 16.31 | c | 32.72 | a | 41.07 | 55.52 | 67.53 | 72.81 | 68.52 | 56.72 | 40.26 | 35.30 | 23.00 | a | 44.04 | ||||||||||
2021 | 18.36 | b | 9.54 | 36.26 | 44.12 | 55.58 | 71.20 | 70.05 | 68.00 | 60.71 | a | 52.73 | 33.26 | a | 20.22 | d | 45.00 | |||||||||
2022 | 6.90 | a | 10.07 | g | 26.96 | g | 39.19 | q | 56.61 | 66.80 | 71.47 | a | 68.05 | 59.59 | a | 46.84 | f | 30.92 | f | 14.58 | 49.14 | e | ||||
2023 | 19.93 | c | 16.75 | 24.90 | e | 42.37 | g | 58.06 | 71.66 | h | 67.98 | 67.71 | 63.97 | 48.50 | c | 31.78 | n | 30.23 | i | 45.98 | d | |||||
2024 | 22.72 | h | 29.68 | d | 32.92 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 29.68 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 12.39 | 16.62 | 29.26 | 43.38 | 56.52 | 65.81 | 70.21 | 67.73 | 59.54 | 46.23 | 31.26 | 17.49 | 42.84 | |||||||||||||
S.D. | 5.92 | 7.04 | 5.55 | 4.26 | 3.44 | 2.75 | 2.62 | 2.34 | 2.78 | 3.14 | 5.02 | 6.15 | 2.02 | |||||||||||||
SKEW | -0.09 | 0.16 | 0.06 | -0.24 | 0.18 | -0.02 | -0.35 | -0.09 | -0.42 | -0.20 | -0.00 | -0.59 | -0.31 | |||||||||||||
MAX | 25.08 | 29.68 | 43.47 | 51.83 | 63.73 | 71.20 | 75.00 | 72.85 | 64.63 | 52.73 | 42.55 | 28.89 | 46.32 | |||||||||||||
MIN | -0.34 | 2.38 | 18.34 | 32.05 | 50.03 | 60.32 | 63.39 | 62.03 | 51.67 | 40.26 | 21.23 | 4.63 | 38.67 | |||||||||||||
YRS | 41 | 40 | 40 | 39 | 41 | 39 | 42 | 41 | 41 | 41 | 39 | 41 | 32 |