YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1961 | ----- | z | ----- | z | 35.31 | m | 39.73 | 55.85 | a | 69.57 | b | 70.82 | 72.32 | a | 61.03 | 51.50 | 33.60 | 15.70 | f | 56.80 | d | |||||
1962 | 9.97 | a | 14.43 | 23.44 | 37.54 | r | ----- | z | 66.50 | n | 68.42 | 68.85 | 56.48 | a | 50.89 | 36.88 | b | 19.97 | 38.81 | c | ||||||
1963 | 4.87 | a | 14.32 | 34.73 | 47.55 | 55.90 | 70.40 | 71.40 | 67.92 | 61.55 | 58.89 | 38.00 | 9.82 | 44.61 | ||||||||||||
1964 | 21.06 | 24.21 | 25.16 | 45.37 | 61.02 | 67.52 | 73.87 | 68.31 | 59.83 | 48.69 | 35.53 | 16.21 | 45.56 | |||||||||||||
1965 | 11.73 | 13.29 | 19.13 | 43.18 | 61.79 | 67.80 | 71.52 | 68.65 | 55.03 | 50.94 | 33.48 | 28.33 | a | 43.74 | ||||||||||||
1966 | 4.02 | 15.30 | 35.22 | a | 41.78 | 54.11 | 68.75 | 75.79 | 68.52 | 61.22 | 49.18 | 32.18 | 20.06 | 43.84 | ||||||||||||
1967 | 17.13 | 12.70 | 33.05 | 47.25 | 54.02 | 67.50 | 69.77 | 67.23 | 60.43 | 48.37 | 32.72 | 23.35 | 44.46 | |||||||||||||
1968 | 15.95 | 17.00 | 40.58 | 49.55 | 54.55 | 68.35 | 70.61 | 70.48 | 60.92 | 51.66 | 34.47 | 18.58 | 46.06 | |||||||||||||
1969 | 8.89 | 19.07 | 23.26 | 48.58 | 60.47 | 61.50 | 72.56 | 72.37 | 62.32 | 46.84 | 34.00 | 19.66 | 44.13 | |||||||||||||
1970 | 5.87 | 16.62 | 26.63 | 47.02 | 60.77 | 70.78 | 74.02 | 71.16 | 61.80 | 49.98 | 33.12 | 18.23 | 44.67 | |||||||||||||
1971 | 7.60 | 17.38 | 27.89 | 47.40 | 55.87 | 73.27 | 68.90 | 70.27 | 63.82 | 54.89 | 34.28 | a | 19.73 | 45.11 | ||||||||||||
1972 | 7.82 | 12.90 | 29.11 | 43.34 | a | 61.47 | a | 68.00 | 70.06 | 70.50 | 59.50 | 45.85 | 32.30 | 12.45 | 42.78 | |||||||||||
1973 | 17.84 | 21.66 | 40.42 | 44.72 | 55.53 | 70.50 | 73.00 | 71.98 | 60.73 | 54.35 | 34.77 | 16.56 | 46.84 | |||||||||||||
1974 | 13.11 | 17.38 | 31.10 | 47.80 | 55.22 | a | 65.55 | 75.85 | 67.15 | 57.78 | 50.92 | 34.40 | 23.40 | 44.97 | ||||||||||||
1975 | 14.85 | 15.98 | 22.02 | a | 39.02 | 61.37 | 67.58 | 74.92 | 71.53 | 57.27 | 52.95 | 36.13 | 20.90 | 44.54 | ||||||||||||
1976 | 13.52 | 28.72 | 33.65 | 51.23 | 57.53 | 70.28 | 74.53 | 71.74 | 62.08 | 45.00 | 27.17 | 12.71 | 45.68 | |||||||||||||
1977 | 0.74 | 23.70 | 38.90 | 54.65 | 68.00 | 69.68 | 75.63 | 67.31 | 62.80 | 48.00 | 32.62 | 15.15 | 46.43 | |||||||||||||
1978 | 5.05 | 8.80 | 28.71 | 45.92 | 60.68 | a | 68.67 | 71.39 | 71.40 | 67.68 | 49.18 | 30.80 | 13.44 | 43.48 | ||||||||||||
1979 | 1.23 | 8.96 | 27.08 | 42.18 | 56.32 | 68.42 | 72.48 | 69.68 | 63.92 | 48.90 | 33.15 | 26.16 | 43.21 | |||||||||||||
1980 | 15.69 | 15.57 | a | 27.06 | 48.63 | 62.18 | 69.33 | 75.73 | 71.68 | 63.38 | 46.13 | 37.52 | 20.90 | 46.15 | ||||||||||||
1981 | 19.79 | 25.26 | a | 37.98 | 50.86 | a | 56.74 | 68.55 | 72.95 | 70.00 | 61.33 | 47.89 | 38.50 | 17.39 | 47.27 | |||||||||||
1982 | 3.00 | 17.74 | a | 29.23 | 42.18 | 61.77 | 63.40 | 74.68 | 71.17 | a | 61.68 | 51.42 | 32.14 | a | 26.45 | a | 44.57 | |||||||||
1983 | 20.50 | a | 25.76 | a | 34.02 | 41.22 | 55.08 | 68.20 | 78.10 | 76.89 | 64.84 | b | 49.68 | a | 34.97 | 4.19 | 46.12 | |||||||||
1984 | 16.04 | c | 28.43 | 24.65 | 46.55 | a | 56.02 | a | 69.72 | a | 71.16 | 74.43 | a | 59.71 | a | 51.92 | a | 33.47 | 19.81 | 45.99 | ||||||
1985 | 10.68 | 16.38 | 37.58 | 52.60 | 66.15 | 66.92 | 72.45 | 66.95 | a | 61.02 | 49.02 | 24.90 | a | 8.18 | 44.40 | |||||||||||
1986 | 17.10 | a | 15.59 | 34.23 | 50.38 | 61.33 | a | 70.63 | 74.26 | 67.34 | 61.87 | 51.21 | 28.68 | 24.13 | 46.40 | |||||||||||
1987 | 22.11 | 32.41 | 38.47 | a | 53.68 | 65.05 | 72.80 | 75.73 | 69.11 | 63.47 | a | 45.39 | 38.68 | 24.55 | 50.12 | |||||||||||
1988 | 10.61 | 15.56 | b | 35.07 | a | 47.41 | a | 65.23 | a | 74.66 | a | 75.97 | a | 74.73 | a | 63.86 | b | 45.23 | a | 34.28 | 20.87 | a | 46.96 | |||
1989 | 24.18 | 11.74 | a | 28.05 | 46.47 | 58.52 | 67.85 | 74.74 | b | 71.03 | 61.68 | 51.95 | 30.00 | 11.08 | a | 44.77 | ||||||||||
1990 | 27.47 | 25.27 | 37.55 | 48.79 | b | 56.45 | a | 70.07 | 71.61 | 71.00 | 65.02 | a | 50.15 | 39.40 | 17.32 | 48.34 | ||||||||||
1991 | 12.00 | a | 27.21 | 36.00 | 50.30 | 61.92 | 74.23 | 72.90 | 71.08 | 60.88 | 48.61 | 25.67 | 22.90 | 46.98 | ||||||||||||
1992 | 22.68 | 28.45 | 34.24 | 43.97 | 61.39 | 66.55 | 65.63 | a | 66.35 | 61.28 | 49.02 | 31.50 | 20.85 | 45.99 | ||||||||||||
1993 | 14.27 | 15.81 | b | 26.63 | 43.50 | 56.84 | 65.82 | 70.18 | a | 69.61 | 55.96 | b | 49.11 | 31.90 | 22.53 | 43.51 | ||||||||||
1994 | 3.80 | c | 12.09 | 34.89 | 47.31 | a | 62.13 | a | 71.02 | 69.29 | 68.02 | 65.58 | 53.68 | 38.07 | a | 25.82 | 45.97 | |||||||||
1995 | 17.07 | a | 20.96 | a | 35.03 | 42.68 | 56.30 | a | 71.60 | 73.32 | 75.63 | a | 60.63 | 49.63 | 27.50 | a | 18.39 | 45.73 | ||||||||
1996 | 9.10 | b | 17.59 | a | 23.79 | 39.83 | 53.06 | 67.42 | 68.68 | 68.52 | 59.88 | 48.50 | 24.08 | 13.24 | 41.14 | |||||||||||
1997 | 8.27 | 18.83 | a | 28.56 | 41.12 | a | 51.44 | 69.17 | 70.16 | 67.31 | 62.93 | 50.42 | 26.06 | c | 25.07 | a | 43.28 | |||||||||
1998 | 17.39 | 29.96 | 28.25 | a | 49.29 | a | 64.19 | 65.52 | b | ----- | z | 72.40 | 66.42 | 50.16 | 36.97 | 26.25 | a | 46.07 | a | |||||||
1999 | 11.10 | a | 26.70 | 32.73 | 46.93 | 58.66 | 66.25 | 74.97 | 69.00 | 59.87 | 47.44 | 41.57 | 23.21 | 46.53 | ||||||||||||
2000 | 14.38 | c | 26.10 | 39.25 | a | 45.35 | 59.55 | 65.75 | 71.19 | 70.45 | 61.03 | 52.41 | c | 30.22 | 6.48 | a | 45.18 | |||||||||
2001 | 18.47 | b | 8.89 | 23.87 | 46.05 | a | 58.00 | a | 68.43 | 73.08 | a | 72.16 | b | 59.25 | 47.65 | 46.15 | 27.87 | a | 45.82 | |||||||
2002 | 22.62 | a | 26.05 | 23.68 | a | 43.67 | a | 52.67 | a | 70.02 | 75.42 | 69.24 | 64.62 | b | 42.29 | 31.10 | a | 24.69 | 45.51 | |||||||
2003 | 13.02 | 15.36 | 30.57 | a | 46.75 | 56.11 | 65.47 | 70.68 | a | 71.66 | b | 60.90 | a | 49.45 | 32.44 | c | 23.02 | c | 44.62 | |||||||
2004 | 11.58 | 19.67 | 34.87 | a | 46.79 | a | 54.11 | 64.25 | 69.40 | b | 64.08 | 66.12 | 48.29 | 37.48 | d | 21.08 | a | 44.81 | ||||||||
2005 | 13.85 | 24.15 | a | 29.18 | 48.88 | a | 52.33 | a | 70.77 | 73.61 | ----- | z | 65.41 | a | 51.73 | 36.34 | a | 16.13 | 43.85 | a | ||||||
2006 | 26.44 | 17.46 | 31.10 | 51.10 | 58.71 | 68.65 | 75.13 | 70.61 | 58.05 | 44.90 | b | 35.62 | 27.34 | 47.09 | ||||||||||||
2007 | 18.47 | 9.36 | 35.22 | a | 44.83 | 62.26 | 69.87 | 72.18 | 70.71 | 63.50 | 53.55 | 33.62 | a | 15.21 | 45.73 | |||||||||||
2008 | 9.76 | 12.54 | a | 26.90 | 41.90 | 55.23 | 66.62 | 72.63 | 69.30 | a | 63.13 | 48.84 | 34.78 | a | 12.55 | 42.85 | ||||||||||
2009 | 6.82 | a | 19.09 | 30.60 | 45.20 | 57.03 | 65.37 | 66.52 | 66.68 | 64.27 | 41.98 | 40.90 | 15.81 | 43.35 | ||||||||||||
2010 | 7.08 | 12.89 | 35.61 | 52.95 | 58.37 | 66.90 | 73.29 | 73.76 | 58.95 | 51.73 | 33.57 | 13.61 | 44.89 | |||||||||||||
2011 | 9.18 | 16.11 | 27.00 | 43.47 | 56.40 | 67.75 | 76.47 | 70.56 | 59.58 | 52.34 | 37.45 | 25.13 | 45.12 | |||||||||||||
2012 | 21.66 | 26.64 | 47.08 | 48.05 | 62.79 | 70.38 | 77.71 | 69.60 | 61.28 | a | 45.77 | 35.65 | 22.50 | 49.09 | ||||||||||||
2013 | 15.66 | 15.91 | 23.21 | b | 38.02 | 55.21 | 67.33 | 71.82 | 70.52 | 64.90 | 48.15 | 31.15 | 12.77 | 42.89 | ||||||||||||
2014 | 3.55 | c | 6.18 | c | 22.53 | 42.23 | 56.73 | 68.53 | 68.84 | 71.16 | 61.23 | 47.15 | a | 24.27 | 23.40 | 41.32 | ||||||||||
2015 | 16.13 | 9.00 | 30.95 | 46.58 | 53.02 | c | 67.12 | 71.23 | 68.15 | 67.27 | 50.95 | 40.65 | 29.18 | 45.85 | ||||||||||||
2016 | 14.81 | 22.91 | 38.61 | 47.62 | 58.47 | 70.17 | 72.15 | 71.40 | 65.37 | 51.81 | 42.80 | 18.45 | 47.88 | |||||||||||||
2017 | 19.87 | a | 29.25 | 31.27 | 48.22 | 56.65 | 69.20 | 72.78 | a | 65.85 | 65.10 | 50.13 | 31.90 | 18.39 | 46.55 | |||||||||||
2018 | 12.98 | 13.26 | a | 29.85 | 33.32 | 64.79 | 71.08 | 71.92 | 70.68 | 64.75 | 44.16 | 25.48 | 24.21 | 43.87 | ||||||||||||
2019 | 13.44 | 8.91 | 25.48 | 44.16 | a | 53.44 | 67.62 | 73.27 | 68.32 | 65.12 | 44.50 | 28.67 | 22.27 | 42.93 | ||||||||||||
2020 | 19.18 | 17.47 | 34.52 | a | 41.81 | a | 56.27 | 71.55 | 74.16 | 71.02 | 60.12 | 41.85 | 38.40 | 24.11 | 45.87 | |||||||||||
2021 | 20.13 | 9.04 | 38.37 | 45.73 | 57.95 | 73.55 | 72.26 | 71.44 | 63.98 | 54.40 | 35.63 | 24.97 | 47.29 | |||||||||||||
2022 | 7.58 | 12.27 | 30.84 | 39.17 | a | 59.50 | a | 70.05 | 73.16 | 69.71 | 62.90 | 49.32 | 34.45 | 16.11 | 43.76 | |||||||||||
2023 | 19.03 | 17.77 | 27.50 | 44.28 | 61.23 | 71.57 | a | 70.60 | 72.13 | 67.20 | 50.84 | 36.30 | 32.73 | c | 47.60 | |||||||||||
2024 | 18.44 | 32.14 | 35.61 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.73 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 13.62 | 18.38 | 31.23 | 45.74 | 58.35 | 68.74 | 72.54 | 70.14 | 62.09 | 49.33 | 33.82 | 19.77 | 45.26 | |||||||||||||
S.D. | 6.35 | 6.65 | 5.68 | 4.08 | 3.77 | 2.54 | 2.57 | 2.37 | 2.80 | 3.24 | 4.57 | 5.85 | 1.76 | |||||||||||||
SKEW | -0.05 | 0.34 | 0.17 | -0.29 | 0.41 | -0.09 | -0.25 | 0.21 | -0.20 | -0.08 | -0.08 | -0.43 | 0.14 | |||||||||||||
MAX | 27.47 | 32.41 | 47.08 | 54.65 | 68.00 | 74.66 | 78.10 | 76.89 | 67.68 | 58.89 | 46.15 | 32.73 | 50.12 | |||||||||||||
MIN | 0.74 | 6.18 | 19.13 | 33.32 | 51.44 | 61.50 | 65.63 | 64.08 | 55.03 | 41.85 | 24.08 | 4.19 | 41.14 | |||||||||||||
YRS | 63 | 63 | 63 | 62 | 62 | 62 | 62 | 62 | 63 | 63 | 63 | 62 | 59 |