YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1971 | ----- | z | ----- | z | ----- | z | ----- | z | 66.80 | f | 81.21 | b | 77.81 | 77.55 | 71.50 | 62.19 | 39.70 | 25.45 | 62.20 | e | ||||||
1972 | 16.97 | a | 23.15 | b | 34.77 | 51.70 | 72.65 | 76.47 | 77.97 | 77.58 | 67.33 | 52.68 | 36.70 | 20.81 | 50.73 | |||||||||||
1973 | 24.42 | 29.93 | a | 46.71 | 54.03 | 64.29 | 77.50 | 80.94 | 81.13 | 67.33 | 62.77 | 41.03 | 23.68 | 54.48 | ||||||||||||
1974 | 20.23 | 27.41 | a | 36.19 | 56.20 | 63.19 | 74.93 | 85.32 | 77.13 | 66.70 | 59.42 | 40.53 | 29.87 | 53.09 | ||||||||||||
1975 | 22.74 | 25.41 | a | 31.13 | 46.93 | 70.97 | 75.47 | 83.65 | 79.42 | 66.00 | 61.71 | 45.03 | 23.74 | 52.68 | ||||||||||||
1976 | 18.84 | 34.31 | 38.13 | 61.10 | 69.52 | 81.13 | 85.06 | 83.84 | 72.80 | 53.61 | 34.63 | 17.71 | 54.22 | |||||||||||||
1977 | 9.23 | 29.18 | 44.90 | 63.48 | a | 77.37 | a | 76.73 | 83.13 | 75.19 | 67.53 | 57.16 | 38.67 | 21.73 | a | 53.69 | ||||||||||
1978 | 16.32 | 22.50 | 39.03 | 54.04 | b | 71.77 | 76.00 | a | 77.74 | 78.81 | 74.63 | 57.97 | 38.77 | 20.74 | 52.36 | |||||||||||
1979 | 9.84 | 19.04 | 33.94 | 50.70 | 63.61 | 74.69 | a | 79.16 | 74.65 | 70.18 | h | 56.00 | j | 37.50 | 30.42 | 47.35 | b | |||||||||
1980 | 20.60 | a | 23.30 | b | 34.29 | 60.20 | 73.41 | b | 74.90 | a | 84.61 | 77.97 | 68.13 | 55.00 | 43.40 | 25.87 | 53.47 | |||||||||
1981 | 28.06 | 30.57 | 45.52 | 58.87 | 67.52 | 75.00 | 81.48 | 77.39 | 69.80 | 54.39 | 46.27 | 24.19 | 54.92 | |||||||||||||
1982 | 11.27 | a | 22.56 | a | 34.43 | a | 51.83 | 73.03 | a | 72.13 | 83.62 | b | 78.97 | 68.36 | e | 58.28 | f | 35.22 | g | 30.73 | e | 52.69 | b | |||
1983 | 27.21 | c | 30.54 | 39.93 | d | 51.54 | d | 65.89 | d | 75.33 | c | 84.58 | 82.52 | 70.63 | 56.80 | a | 39.53 | 12.72 | b | 53.10 | ||||||
1984 | 22.12 | g | 35.50 | a | 35.45 | b | 58.57 | 66.60 | a | 77.47 | 80.74 | 82.73 | a | 66.83 | 59.40 | a | 41.19 | d | 27.92 | e | 57.49 | a | ||||
1985 | 20.39 | c | 25.79 | 45.20 | a | 61.47 | 73.00 | a | 72.96 | b | 80.84 | 74.03 | 67.21 | b | 57.68 | 32.04 | b | 18.57 | c | 52.43 | ||||||
1986 | 26.63 | a | 25.14 | 42.79 | c | 61.34 | a | 71.19 | 78.70 | c | 82.29 | 76.50 | c | 67.07 | 57.00 | a | 35.93 | 27.84 | 54.37 | |||||||
1987 | 27.00 | 39.36 | 47.39 | 67.10 | 73.60 | a | 83.38 | a | 84.90 | 78.16 | 72.04 | b | 52.43 | a | 43.83 | a | 28.58 | 58.15 | ||||||||
1988 | 17.90 | a | 22.15 | b | 39.84 | 59.41 | a | 76.23 | 84.79 | a | 88.32 | 83.55 | 73.06 | m | 52.87 | 38.10 | 25.71 | 53.53 | a | |||||||
1989 | 28.84 | 17.79 | 32.42 | 53.40 | 68.55 | 75.87 | 83.45 | 79.32 | 69.97 | a | 60.68 | 34.13 | 15.97 | 51.70 | ||||||||||||
1990 | 32.35 | 30.93 | 43.74 | 57.47 | 66.81 | 77.50 | 78.94 | 79.58 | 72.53 | 57.10 | 45.10 | 24.03 | 55.51 | |||||||||||||
1991 | 19.19 | 32.82 | 42.71 | 59.50 | 69.71 | 79.40 | 78.61 | 80.32 | 66.80 | 56.48 | 29.70 | 26.42 | 53.47 | |||||||||||||
1992 | 26.39 | 31.83 | 40.58 | 49.67 | 71.81 | 74.20 | 73.84 | 73.97 | 69.63 | 56.81 | 33.93 | 26.68 | 52.44 | |||||||||||||
1993 | 23.16 | 24.61 | 38.87 | 53.07 | a | 66.42 | 71.77 | 77.32 | 78.55 | 62.90 | 55.71 | 34.77 | 25.61 | 51.06 | ||||||||||||
1994 | 11.06 | 20.14 | 42.00 | a | 56.07 | 71.27 | a | 78.90 | a | 78.00 | 75.71 | 70.64 | p | 58.71 | 44.00 | 31.16 | 51.55 | a | ||||||||
1995 | 22.84 | 24.86 | 41.48 | 48.37 | 66.58 | 80.43 | 81.06 | 81.03 | b | 68.53 | 55.47 | a | 30.45 | a | 22.29 | 51.95 | ||||||||||
1996 | 17.29 | 25.14 | 32.53 | a | 50.93 | 64.81 | 76.13 | 76.38 | b | 79.55 | 70.31 | a | 58.65 | 30.50 | 21.29 | 50.29 | ||||||||||
1997 | 15.52 | f | 28.21 | 37.35 | 53.73 | 63.67 | a | 79.14 | b | 77.76 | b | 75.80 | a | 71.13 | 59.00 | 33.97 | 30.84 | 55.51 | a | |||||||
1998 | 24.58 | 37.67 | a | 38.61 | 61.13 | 75.90 | a | 72.83 | 80.47 | a | 80.77 | 76.48 | a | 59.03 | a | 44.00 | b | 32.68 | 57.01 | |||||||
1999 | 18.65 | 34.54 | 43.03 | 58.17 | 69.67 | a | 75.57 | 84.06 | 77.37 | a | 69.73 | 60.23 | 49.73 | 30.68 | 55.95 | |||||||||||
2000 | 23.10 | 33.69 | 49.03 | 55.40 | 69.65 | 73.61 | b | 80.76 | b | 78.93 | a | 71.62 | a | 63.00 | 36.67 | 13.65 | 54.09 | |||||||||
2001 | 27.68 | 21.11 | 36.90 | a | 56.76 | a | 68.90 | 75.86 | b | 82.90 | 81.37 | a | 69.38 | a | 56.48 | 54.31 | a | 33.45 | 55.42 | |||||||
2002 | ----- | z | ----- | z | 42.00 | y | 54.67 | 63.39 | 78.72 | a | 83.39 | 77.61 | 72.31 | a | 48.03 | 39.07 | 31.35 | 60.95 | c | |||||||
2003 | 22.03 | 24.36 | 39.39 | 57.10 | 67.48 | 76.27 | 80.43 | a | 82.97 | 71.60 | 59.23 | 38.34 | a | 30.87 | 54.17 | |||||||||||
2004 | 17.29 | 29.48 | 41.03 | 60.30 | 64.17 | b | 73.43 | 79.19 | 73.70 | a | 74.90 | 58.65 | 43.60 | 26.55 | 53.52 | |||||||||||
2005 | 20.97 | 32.29 | 40.23 | 62.47 | 63.55 | 79.48 | c | 83.07 | a | 80.55 | 75.77 | 61.45 | 43.24 | a | 24.39 | 55.62 | ||||||||||
2006 | 33.16 | 27.36 | 40.55 | 63.24 | a | 69.48 | 79.27 | 87.39 | 79.40 | a | 68.03 | 54.74 | 42.73 | 34.39 | 56.65 | |||||||||||
2007 | 25.18 | c | 20.46 | 45.35 | 56.47 | 72.16 | 80.77 | 82.00 | 79.45 | 72.63 | 61.52 | 40.21 | a | 22.58 | 54.90 | |||||||||||
2008 | 21.42 | 23.79 | 35.39 | 53.23 | 65.57 | a | 75.27 | 80.70 | a | 79.61 | 70.69 | a | 58.23 | 40.14 | b | 22.26 | 52.19 | |||||||||
2009 | 15.90 | 28.40 | c | 40.70 | a | 55.25 | b | 70.30 | a | 75.70 | 76.86 | b | 77.10 | 74.93 | 49.20 | a | 49.83 | 24.10 | 53.19 | |||||||
2010 | 19.63 | a | 29.32 | 49.65 | 64.20 | 69.19 | 75.07 | 81.55 | 81.55 | 66.40 | 61.52 | 40.83 | 21.90 | 55.07 | ||||||||||||
2011 | 17.45 | 26.07 | 36.39 | 53.23 | 65.58 | 76.13 | 84.58 | 79.52 | 70.57 | 62.45 | 46.07 | a | 30.65 | 54.06 | ||||||||||||
2012 | 29.39 | 33.62 | 55.68 | 58.80 | 72.48 | 79.60 | 86.19 | 80.39 | 74.00 | 54.03 | 44.83 | 29.70 | a | 58.23 | ||||||||||||
2013 | 25.13 | 25.21 | 32.52 | 45.90 | 66.26 | 74.70 | 80.42 | 80.68 | 74.50 | 55.74 | 38.33 | 17.52 | 51.41 | |||||||||||||
2014 | 15.29 | 16.79 | 31.61 | 48.13 | 66.52 | 77.40 | 77.90 | 78.48 | 70.73 | 55.94 | 30.83 | 28.29 | 49.83 | |||||||||||||
2015 | 23.58 | 18.57 | 43.97 | a | 58.83 | 68.03 | 77.10 | 80.06 | 76.97 | 74.59 | a | 58.32 | 47.10 | 33.23 | 55.03 | |||||||||||
2016 | 21.87 | 30.03 | 46.84 | 55.00 | 69.55 | 77.60 | 80.87 | 79.32 | 71.70 | 60.55 | 50.10 | 25.10 | 55.71 | |||||||||||||
2017 | 24.65 | 37.00 | 39.68 | 57.33 | 66.19 | 77.52 | a | 81.19 | 74.71 | 73.93 | 58.07 | a | 37.03 | 23.00 | 54.19 | |||||||||||
2018 | 21.84 | 24.64 | 39.35 | 44.53 | 76.68 | 78.37 | 81.10 | a | 79.48 | 70.23 | 51.00 | 31.83 | 29.97 | 52.42 | ||||||||||||
2019 | 19.42 | 19.18 | 36.32 | 53.23 | 63.68 | 77.53 | 81.57 | a | 76.58 | 71.40 | 52.42 | 33.80 | 27.90 | 51.09 | ||||||||||||
2020 | 25.71 | 29.24 | 42.61 | 53.10 | 66.13 | 80.93 | 83.52 | 79.55 | 69.13 | 49.71 | 46.63 | 32.39 | 54.89 | |||||||||||||
2021 | 27.90 | 19.21 | 48.97 | 56.27 | 68.77 | 83.93 | 83.03 | 80.48 | 73.57 | 62.77 | 42.62 | a | 29.65 | 56.43 | ||||||||||||
2022 | 18.61 | 21.32 | 36.61 | 46.60 | 68.52 | 79.63 | 81.71 | 77.77 | 72.43 | 58.65 | 41.87 | 22.84 | 52.21 | |||||||||||||
2023 | 25.53 | a | 27.68 | 34.74 | 49.93 | 72.17 | a | 81.73 | 81.32 | 80.77 | 73.80 | 57.52 | 43.50 | 37.97 | 55.56 | |||||||||||
2024 | 25.00 | 40.97 | 45.52 | 56.50 | 68.50 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.00 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.79 | 27.19 | 40.23 | 55.59 | 68.91 | 77.29 | 81.39 | 78.79 | 70.62 | 57.26 | 40.13 | 25.99 | 53.84 | |||||||||||||
S.D. | 5.42 | 5.84 | 5.33 | 5.04 | 3.75 | 2.95 | 2.93 | 2.46 | 2.99 | 3.66 | 5.65 | 5.36 | 1.99 | |||||||||||||
SKEW | -0.31 | 0.31 | 0.43 | -0.10 | 0.35 | 0.45 | -0.04 | -0.16 | -0.14 | -0.53 | 0.12 | -0.34 | 0.12 | |||||||||||||
MAX | 33.16 | 40.97 | 55.68 | 67.10 | 77.37 | 84.79 | 88.32 | 83.84 | 76.48 | 63.00 | 54.31 | 37.97 | 58.23 | |||||||||||||
MIN | 9.23 | 16.79 | 31.13 | 44.53 | 63.19 | 71.77 | 73.84 | 73.70 | 62.90 | 48.03 | 29.70 | 12.72 | 49.83 | |||||||||||||
YRS | 50 | 52 | 52 | 53 | 52 | 53 | 53 | 53 | 50 | 51 | 52 | 53 | 45 |