YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1968 | ----- | z | ----- | z | ----- | z | 53.27 | 61.13 | 70.70 | 74.87 | 75.03 | 65.47 | 56.16 | 35.47 | 24.81 | 57.43 | c | |||||||||
1969 | 21.58 | 28.29 | 33.90 | 52.63 | 64.94 | 63.10 | 75.03 | 78.45 | 64.53 | 47.90 | 37.87 | 26.10 | 49.53 | |||||||||||||
1970 | 17.52 | 24.54 | 34.03 | 51.07 | 59.06 | 75.34 | a | 78.65 | 76.39 | 65.50 | 56.81 | 36.50 | 25.26 | 50.05 | ||||||||||||
1971 | 15.48 | 25.93 | 33.23 | 50.13 | 61.61 | 77.03 | 72.71 | 73.19 | 67.23 | 58.90 | 36.27 | 26.77 | 49.87 | |||||||||||||
1972 | 18.71 | 20.55 | 31.32 | 45.67 | 70.39 | 70.73 | 74.13 | 73.06 | 63.20 | 49.19 | 34.27 | 19.87 | 47.59 | |||||||||||||
1973 | 27.19 | 25.93 | 42.81 | 48.80 | 58.52 | 73.83 | 77.16 | 76.48 | 64.23 | 60.35 | 35.30 | 24.52 | 51.26 | |||||||||||||
1974 | 19.45 | 24.29 | 33.48 | 51.70 | 60.81 | 70.03 | 79.71 | 72.55 | 59.70 | 53.97 | 39.07 | 30.52 | 49.61 | |||||||||||||
1975 | 23.13 | 25.96 | 32.71 | 44.37 | 71.26 | 73.77 | 79.90 | 75.45 | 62.07 | 58.35 | 43.27 | 25.07 | a | 51.28 | ||||||||||||
1976 | 18.61 | 32.93 | 34.42 | 53.67 | 64.32 | 78.63 | 78.74 | 80.45 | 69.07 | 49.81 | 30.67 | 17.61 | 50.74 | |||||||||||||
1977 | 11.29 | 25.07 | 42.71 | 57.37 | 76.10 | 70.57 | 79.16 | 69.10 | 62.73 | 56.00 | 37.77 | 22.39 | 50.85 | |||||||||||||
1978 | 19.06 | 22.21 | 36.23 | 46.77 | 68.61 | 72.73 | 74.94 | 74.16 | 68.43 | 54.74 | 38.07 | 20.97 | 49.74 | |||||||||||||
1979 | 12.32 | 18.64 | 35.10 | 46.40 | 59.16 | 71.43 | 77.94 | 72.29 | 67.60 | 46.77 | 35.27 | 29.00 | 47.66 | |||||||||||||
1980 | 20.26 | 21.10 | 34.03 | 51.10 | 70.06 | 70.90 | 78.23 | 73.87 | 62.60 | 47.29 | 36.90 | 21.55 | 48.99 | |||||||||||||
1981 | 22.74 | 28.89 | 38.19 | 52.07 | 63.39 | 71.50 | 77.61 | 75.13 | 62.80 | 48.61 | 43.13 | 25.19 | 50.77 | |||||||||||||
1982 | 13.61 | 23.14 | 33.06 | 45.80 | 69.52 | 68.13 | 77.47 | a | 71.43 | a | 64.00 | b | 55.52 | 36.37 | 27.77 | 48.82 | ||||||||||
1983 | 24.48 | 30.43 | 36.16 | 46.07 | 59.84 | 74.03 | 82.00 | a | 79.52 | 66.80 | 53.90 | 37.27 | 14.94 | 50.45 | ||||||||||||
1984 | 19.00 | 33.18 | a | 31.33 | a | 55.37 | 62.29 | 74.03 | 73.48 | 74.61 | 60.40 | 54.84 | 39.17 | 25.46 | c | 50.26 | ||||||||||
1985 | 17.10 | 21.50 | 39.10 | 54.52 | a | 65.30 | a | 69.20 | 73.74 | 71.77 | 64.73 | 55.48 | 31.10 | 15.16 | 48.23 | |||||||||||
1986 | 22.29 | 22.57 | 39.23 | 53.40 | 68.48 | 72.21 | a | 77.52 | 71.39 | 63.30 | 53.06 | 32.57 | 26.87 | 50.24 | ||||||||||||
1987 | 25.03 | 34.04 | 43.10 | 60.00 | 68.27 | a | 75.47 | 77.81 | 73.67 | a | 66.77 | 46.87 | 38.77 | 29.70 | a | 53.29 | ||||||||||
1988 | 20.26 | 20.62 | 34.61 | 52.77 | ----- | z | ----- | z | 83.19 | 76.26 | 65.60 | 47.32 | 35.77 | 24.39 | 46.08 | b | ||||||||||
1989 | 28.26 | 19.54 | 30.81 | 48.40 | 65.03 | 70.37 | 80.32 | 75.35 | 68.73 | 57.42 | 30.97 | 15.55 | 49.23 | |||||||||||||
1990 | 30.60 | a | 29.96 | 41.74 | 56.86 | b | 61.10 | 72.50 | 75.42 | 74.81 | 65.13 | g | 52.60 | a | 41.67 | 25.16 | 51.13 | a | ||||||||
1991 | 18.10 | 31.11 | 38.58 | 55.63 | 68.39 | 75.93 | 74.67 | g | 77.65 | 61.96 | b | 52.32 | 34.30 | 26.61 | 49.14 | a | ||||||||||
1992 | 24.13 | 29.10 | 34.52 | 45.97 | 68.31 | b | 70.07 | 68.87 | 71.35 | 64.80 | 51.06 | 33.20 | 25.42 | 48.90 | ||||||||||||
1993 | 22.90 | 25.04 | 38.81 | 45.82 | b | 62.81 | 69.07 | 75.97 | ----- | z | 60.62 | a | 51.68 | 33.83 | a | 27.53 | a | 46.73 | a | |||||||
1994 | 11.16 | 19.78 | a | 38.58 | 50.07 | 66.58 | 74.82 | b | 74.30 | a | 72.32 | 68.30 | 57.19 | 42.54 | b | 33.59 | i | 52.33 | a | |||||||
1995 | 23.39 | 23.00 | a | 39.90 | b | 43.60 | 63.47 | a | 79.63 | 76.77 | 78.48 | 64.60 | 52.55 | 27.33 | 21.77 | 49.54 | ||||||||||
1996 | 19.71 | 26.39 | k | 29.67 | a | 43.31 | a | 61.06 | 73.47 | 71.06 | 75.10 | 64.17 | 52.52 | 29.38 | a | 21.37 | a | 49.16 | a | |||||||
1997 | 15.79 | b | 24.07 | 30.68 | 45.30 | 52.19 | 75.47 | 74.16 | 68.74 | 64.67 | 51.68 | 32.72 | a | 29.32 | 47.07 | |||||||||||
1998 | 21.42 | 34.82 | 33.63 | a | 54.45 | a | 68.77 | a | 68.87 | ----- | z | ----- | z | ----- | z | 58.21 | g | 39.73 | 29.89 | c | 43.95 | d | ||||
1999 | 19.29 | 32.52 | a | 38.73 | e | 55.32 | e | 68.48 | b | 72.59 | a | 79.68 | 72.48 | 66.57 | 53.50 | c | 45.41 | a | 28.83 | b | 52.78 | |||||
2000 | 22.19 | 33.10 | 45.13 | 49.80 | 68.33 | a | 71.07 | a | 77.26 | ----- | z | 66.93 | a | 59.16 | l | 38.69 | a | 18.30 | a | 49.08 | b | |||||
2001 | ----- | z | 22.44 | a | 35.42 | 54.20 | 67.81 | 74.83 | a | 78.16 | 79.03 | a | 65.03 | a | 54.00 | a | 46.63 | c | 28.13 | 55.06 | a | |||||
2002 | 24.17 | a | 28.08 | d | 27.55 | b | 45.50 | b | 59.18 | c | 73.72 | a | 82.28 | f | 74.81 | d | 69.27 | d | 44.42 | e | 33.13 | 27.89 | c | 46.16 | a | |
2003 | 17.65 | 16.42 | d | 35.55 | b | 47.96 | d | 63.92 | f | 72.81 | c | 76.48 | f | 73.69 | e | 65.00 | a | 50.48 | 35.00 | 29.10 | 44.37 | b | ||||
2004 | 14.00 | a | 29.21 | a | 35.03 | a | 47.38 | d | 60.68 | c | 68.54 | f | 72.75 | g | 67.56 | d | 70.48 | c | 52.37 | d | 39.71 | b | 22.59 | b | 43.90 | b |
2005 | 17.52 | b | 27.63 | a | 31.77 | a | 53.48 | e | 60.46 | c | 77.26 | c | 78.21 | c | 75.61 | c | 72.42 | f | 56.42 | e | 38.52 | a | 22.45 | b | 49.03 | a |
2006 | 29.55 | b | 21.08 | b | 33.27 | a | 53.52 | a | 60.97 | 70.90 | 77.72 | b | 72.81 | 61.33 | 45.10 | 37.60 | 27.61 | 49.29 | ||||||||
2007 | 20.45 | 13.50 | 37.03 | 43.83 | 64.71 | 72.60 | 75.06 | 75.03 | ----- | z | 51.95 | k | 34.07 | 21.90 | 45.82 | b | ||||||||||
2008 | 22.19 | 19.79 | 27.10 | 45.70 | 57.40 | a | 70.55 | a | 74.29 | 74.35 | k | 65.79 | p | 51.35 | 35.67 | 20.19 | 42.42 | b | ||||||||
2009 | 15.84 | 26.68 | 37.29 | 48.07 | 61.97 | 68.57 | 67.90 | 70.23 | 70.30 | 44.71 | 44.17 | 22.19 | 48.16 | |||||||||||||
2010 | 26.83 | b | 30.07 | 48.71 | 58.03 | 67.87 | 69.17 | 77.16 | 76.55 | 60.72 | a | 55.61 | 39.10 | 22.35 | 52.68 | |||||||||||
2011 | 15.74 | 23.46 | 33.19 | 45.77 | 60.45 | 70.13 | 79.35 | 76.55 | 64.63 | 55.13 | 38.90 | 27.10 | 49.20 | |||||||||||||
2012 | 24.81 | 29.10 | 48.29 | 50.03 | 67.32 | 74.33 | 79.90 | 74.39 | 63.83 | 48.46 | g | 36.77 | 27.52 | 52.39 | a | |||||||||||
2013 | 21.71 | 19.86 | 25.94 | 39.73 | 59.87 | 69.40 | 74.97 | 67.18 | t | 65.79 | f | 50.42 | 32.00 | 15.29 | 40.92 | b | ||||||||||
2014 | 9.29 | 12.36 | 23.61 | 42.23 | 60.61 | 70.37 | 70.26 | 69.35 | 63.43 | 47.26 | 26.20 | 24.35 | 43.28 | |||||||||||||
2015 | 16.29 | 9.39 | 33.77 | 46.83 | 61.94 | 67.76 | a | 74.39 | c | 71.82 | i | 71.17 | a | 51.72 | b | 42.63 | 30.48 | 46.04 | a | |||||||
2016 | 18.67 | g | 24.17 | 37.00 | 43.07 | 62.61 | 69.60 | 74.87 | 73.07 | b | 65.17 | 51.94 | 43.90 | 22.39 | 51.62 | a | ||||||||||
2017 | 24.10 | a | 26.85 | a | 29.29 | 47.33 | 54.66 | b | 68.67 | 72.61 | 68.10 | b | 66.59 | a | 53.87 | a | 30.70 | 18.19 | 46.75 | |||||||
2018 | 20.27 | a | 20.39 | 32.52 | 37.36 | b | 70.43 | a | 72.67 | 76.06 | 73.10 | a | 65.00 | 43.74 | 27.97 | 26.55 | 47.17 | |||||||||
2019 | 16.06 | 16.89 | 31.03 | 44.27 | 55.03 | 69.87 | 77.19 | 71.26 | 64.43 | 49.06 | 28.07 | 25.48 | 45.72 | |||||||||||||
2020 | 24.13 | a | 24.10 | 35.93 | a | 41.87 | 60.19 | 72.87 | 77.94 | 72.97 | 61.67 | 42.48 | 41.00 | 25.61 | 48.40 | |||||||||||
2021 | 24.74 | 18.36 | 39.29 | 47.57 | 61.32 | 74.38 | a | 75.26 | 76.71 | 67.00 | 58.84 | 36.33 | 27.43 | a | 50.60 | |||||||||||
2022 | 14.48 | 17.68 | 29.71 | 39.63 | 62.23 | a | 72.13 | 74.23 | 73.10 | 64.27 | 52.55 | 38.77 | 22.42 | 46.77 | ||||||||||||
2023 | 23.94 | 25.64 | 32.94 | 45.07 | 62.94 | 71.00 | 72.68 | 70.16 | 67.50 | 51.65 | 36.53 | 33.84 | 49.49 | |||||||||||||
2024 | 21.84 | 34.45 | 36.96 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 31.08 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 20.22 | 24.54 | 35.32 | 48.85 | 63.67 | 72.05 | 76.20 | 73.89 | 65.10 | 52.07 | 36.50 | 24.45 | 49.29 | |||||||||||||
S.D. | 4.72 | 5.75 | 5.05 | 5.07 | 4.72 | 2.98 | 3.11 | 2.96 | 2.72 | 4.23 | 4.66 | 4.28 | 2.01 | |||||||||||||
SKEW | -0.13 | -0.25 | 0.42 | 0.06 | 0.10 | 0.09 | -0.40 | -0.01 | 0.19 | -0.30 | -0.08 | -0.48 | -0.53 | |||||||||||||
MAX | 30.60 | 34.82 | 48.71 | 60.00 | 76.10 | 79.63 | 83.19 | 80.45 | 71.17 | 60.35 | 46.63 | 33.84 | 53.29 | |||||||||||||
MIN | 9.29 | 9.39 | 23.61 | 37.36 | 52.19 | 63.10 | 67.90 | 67.56 | 59.70 | 42.48 | 26.20 | 14.94 | 43.28 | |||||||||||||
YRS | 54 | 55 | 56 | 56 | 54 | 54 | 51 | 50 | 50 | 52 | 56 | 55 | 36 |