YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.58 | d | 43.60 | a | 36.83 | 25.97 | 41.49 | h | ||
1953 | 22.16 | 19.48 | 31.34 | 41.15 | 55.39 | 67.20 | 69.87 | 68.77 | 59.77 | 51.89 | 38.15 | 23.69 | 45.74 | |||||||||||||
1954 | 14.97 | 28.41 | 27.60 | 44.10 | 48.65 | a | 65.42 | 68.45 | 64.45 | 58.10 | 46.77 | 36.22 | 22.31 | 43.79 | ||||||||||||
1955 | 15.26 | 17.12 | 25.97 | 49.13 | 57.85 | 64.57 | 73.73 | 71.42 | 59.35 | 49.11 | 30.25 | 17.31 | 44.26 | |||||||||||||
1956 | 18.50 | 18.59 | a | 25.31 | 41.15 | 54.00 | 67.23 | 66.26 | 66.77 | 55.67 | 52.35 | 33.30 | 23.00 | 43.51 | ||||||||||||
1957 | 9.74 | 20.79 | 30.31 | 44.67 | 54.05 | 65.68 | 71.10 | a | 67.39 | 56.52 | 45.77 | 33.50 | l | 23.19 | 44.47 | a | ||||||||||
1958 | 19.79 | 15.64 | 31.50 | 44.18 | 54.10 | 59.62 | 67.15 | 69.47 | a | 59.62 | 50.11 | d | 36.00 | 15.13 | 43.52 | |||||||||||
1959 | 10.00 | 13.57 | 26.89 | 44.10 | 60.47 | 67.70 | 68.98 | 72.39 | 61.95 | 45.16 | 27.19 | a | 28.97 | 43.95 | ||||||||||||
1960 | 20.95 | 21.91 | 22.79 | 46.32 | 55.18 | 63.22 | 67.82 | a | 69.24 | 62.00 | 48.40 | 37.68 | 20.74 | 44.69 | ||||||||||||
1961 | 16.84 | 26.70 | 34.61 | h | 41.77 | 52.98 | 65.70 | 69.32 | 69.27 | 60.85 | 50.95 | a | 34.48 | 19.11 | 46.18 | a | ||||||||||
1962 | 12.97 | 16.02 | 29.19 | 44.32 | 60.10 | 64.27 | 67.13 | 67.82 | 56.65 | 50.53 | 33.86 | i | 19.98 | 44.45 | a | |||||||||||
1963 | 6.84 | 12.00 | 30.82 | 47.59 | a | 54.18 | 68.19 | a | 71.35 | 66.77 | 59.78 | 57.15 | 38.73 | 15.08 | a | 44.04 | ||||||||||
1964 | 21.94 | 24.14 | 29.18 | 45.92 | 61.48 | 66.02 | 71.58 | 65.06 | 57.83 | 46.29 | 37.43 | 17.50 | 45.36 | |||||||||||||
1965 | 14.29 | b | 16.62 | 24.65 | 40.37 | 60.50 | 62.81 | a | 67.74 | 66.77 | 55.59 | a | 49.77 | 35.77 | 28.90 | 43.65 | ||||||||||
1966 | 10.65 | 21.64 | 34.48 | 42.27 | 52.60 | 67.50 | 72.69 | 66.92 | 59.10 | 48.15 | 34.83 | 22.60 | a | 44.45 | ||||||||||||
1967 | 18.89 | 12.89 | 29.27 | 45.05 | 51.03 | 66.08 | 67.65 | 64.26 | 58.63 | 47.52 | 31.43 | 22.31 | 42.92 | |||||||||||||
1968 | 16.94 | 17.43 | 38.71 | 46.65 | 54.44 | 65.33 | 70.05 | 68.65 | 61.85 | 51.69 | 35.78 | 21.68 | 45.77 | |||||||||||||
1969 | 14.92 | 22.04 | 26.74 | 46.65 | 57.85 | 58.37 | 69.56 | 70.78 | a | 59.37 | 47.55 | 33.68 | 23.23 | 44.23 | ||||||||||||
1970 | 10.97 | 18.92 | i | 28.28 | a | 45.48 | b | 55.79 | 67.25 | 71.69 | 69.10 | 60.77 | 50.98 | 34.33 | 21.74 | 46.94 | a | |||||||||
1971 | 10.74 | 18.29 | 26.74 | 44.30 | 53.81 | 70.22 | 67.65 | 66.00 | 62.72 | 56.16 | 36.37 | 24.78 | a | 44.81 | ||||||||||||
1972 | 12.18 | a | 16.69 | 26.42 | a | 40.20 | 60.27 | 64.29 | a | 69.55 | 68.79 | 60.03 | a | 46.40 | 35.07 | 18.02 | a | 43.16 | ||||||||
1973 | 21.16 | 23.25 | 39.93 | a | 44.00 | 53.15 | 68.16 | a | 72.12 | f | 70.34 | 61.47 | 55.34 | 35.28 | 21.56 | 44.88 | a | |||||||||
1974 | 18.00 | 19.68 | 31.26 | 45.28 | e | 52.50 | 62.33 | 71.21 | 66.18 | 53.68 | 46.90 | 35.32 | 24.42 | a | 43.90 | |||||||||||
1975 | 17.19 | b | 17.13 | a | 24.31 | 37.52 | 60.63 | 65.19 | a | 70.56 | 66.74 | 54.20 | 49.74 | 39.43 | 21.21 | 43.65 | ||||||||||
1976 | 12.35 | d | 24.55 | 30.40 | a | 47.57 | 53.95 | a | 67.88 | a | 70.58 | 65.18 | 56.30 | b | 41.62 | a | 25.71 | b | 9.94 | d | 42.17 | |||||
1977 | 3.04 | c | 20.13 | a | 36.45 | a | 47.68 | 63.55 | a | 63.30 | 72.47 | 63.69 | 58.82 | 46.58 | a | 33.73 | 17.68 | 43.93 | ||||||||
1978 | 11.15 | a | 13.32 | 27.32 | 41.13 | 57.32 | 64.05 | 66.74 | 67.37 | 61.18 | 45.50 | 32.22 | 16.57 | a | 41.99 | |||||||||||
1979 | 5.53 | 9.14 | 27.57 | a | 41.43 | 52.45 | 63.52 | 69.65 | 64.92 | 59.45 | 43.79 | 31.88 | 24.90 | 41.19 | ||||||||||||
1980 | 17.16 | 17.28 | 26.23 | 45.55 | 58.74 | 63.43 | a | 70.56 | 67.65 | a | 57.00 | 41.77 | 34.27 | 18.81 | 43.20 | |||||||||||
1981 | 15.87 | 21.86 | 34.24 | 46.23 | 53.69 | 65.42 | 68.85 | 67.81 | 57.02 | 43.79 | 37.00 | 21.29 | 44.42 | |||||||||||||
1982 | 6.26 | b | 16.21 | d | 27.62 | b | 40.42 | 60.53 | 59.81 | a | 69.97 | 64.48 | 56.27 | 47.52 | 32.23 | 28.02 | a | 42.44 | ||||||||
1983 | 21.62 | a | 26.48 | 32.74 | 41.50 | 49.87 | 64.33 | a | 72.16 | 69.89 | 59.12 | a | 47.52 | 36.26 | a | 9.98 | b | 44.29 | ||||||||
1984 | 12.98 | 27.74 | 24.79 | 46.00 | 52.63 | 66.82 | 67.94 | 67.18 | 54.95 | b | 47.39 | 31.08 | 18.93 | a | 43.20 | |||||||||||
1985 | 10.80 | c | 13.55 | 31.63 | 44.57 | g | 57.30 | a | 60.96 | d | 67.62 | f | 64.58 | 59.98 | a | 47.08 | a | 29.27 | 10.09 | b | 38.52 | b | ||||
1986 | 16.05 | 18.04 | 32.13 | 49.17 | 58.74 | ----- | z | 70.90 | a | 64.10 | a | 59.36 | b | 46.47 | a | 28.12 | a | 23.52 | 42.42 | a | ||||||
1987 | 20.41 | c | 25.76 | a | 33.78 | b | 48.61 | c | 57.72 | a | 68.57 | 71.70 | a | 67.18 | 59.07 | a | ----- | z | 37.52 | a | 28.21 | c | 47.14 | a | ||
1988 | 11.23 | c | 14.16 | 30.05 | 44.59 | a | 59.61 | 70.65 | 73.90 | b | 72.10 | 58.34 | b | 41.63 | 35.62 | a | 19.47 | 44.28 | ||||||||
1989 | 21.62 | a | 11.90 | b | 23.05 | a | 41.07 | 54.22 | a | 61.58 | 69.85 | 67.35 | 57.43 | a | 48.11 | 28.90 | 9.37 | 41.21 | ||||||||
1990 | 23.87 | 19.41 | 31.73 | 46.31 | a | 50.81 | 64.22 | 68.15 | 67.55 | 60.45 | 44.81 | 37.57 | 18.44 | 44.44 | ||||||||||||
1991 | 11.13 | 21.50 | a | 30.97 | 46.40 | 59.31 | 68.62 | a | 67.95 | 68.19 | 55.07 | 46.03 | a | 28.05 | 20.27 | 43.62 | ||||||||||
1992 | 21.45 | 24.88 | 29.11 | 40.40 | 56.06 | 61.10 | 63.61 | 63.16 | 56.32 | 43.66 | b | 30.33 | 20.66 | 42.56 | ||||||||||||
1993 | 14.95 | 17.83 | a | 28.97 | 39.65 | 55.81 | 62.07 | 68.85 | a | 67.85 | 53.95 | 44.57 | a | 31.35 | 22.82 | 42.39 | ||||||||||
1994 | 5.10 | 11.77 | b | 31.39 | 43.58 | 56.40 | a | 67.12 | a | 67.97 | 63.93 | b | 61.91 | a | 49.25 | a | 37.43 | c | 25.90 | 43.48 | ||||||
1995 | 18.52 | 17.23 | 31.25 | a | 38.45 | 54.02 | a | 68.98 | 71.29 | b | 72.42 | 55.52 | a | 47.79 | b | 25.92 | 17.05 | 43.20 | ||||||||
1996 | 12.78 | a | 17.25 | a | 23.26 | 40.08 | 51.32 | a | 65.35 | 67.11 | 68.26 | 59.83 | 46.85 | a | 28.00 | 19.48 | 41.63 | |||||||||
1997 | 13.10 | 20.88 | 29.07 | a | 42.30 | 50.00 | b | 66.32 | 68.53 | 64.71 | 59.93 | 47.50 | a | 31.07 | a | 27.53 | 43.41 | |||||||||
1998 | 20.12 | a | 30.00 | 32.19 | 47.82 | 61.98 | 64.78 | 70.76 | 69.63 | 63.82 | 49.11 | 37.78 | a | 32.82 | i | 49.82 | a | |||||||||
1999 | 12.48 | 26.48 | 32.81 | 46.15 | 59.02 | a | 66.22 | 72.98 | 65.18 | a | ----- | z | 45.40 | 39.32 | 22.25 | a | 44.39 | a | ||||||||
2000 | 15.67 | a | 23.19 | b | 38.65 | 43.15 | 58.11 | 63.22 | 67.42 | 67.12 | a | 56.74 | a | 48.48 | a | 32.05 | ----- | z | 46.71 | a | ||||||
2001 | 18.56 | n | 17.48 | 28.82 | 47.58 | 58.43 | a | 65.02 | 70.97 | 71.33 | a | 57.85 | 46.63 | 42.50 | 28.34 | 48.63 | a | |||||||||
2002 | 24.55 | a | 27.05 | 25.35 | 43.75 | 50.66 | 66.35 | 73.29 | 67.82 | 62.24 | a | 43.27 | 32.48 | 24.66 | 45.12 | |||||||||||
2003 | 14.19 | 12.10 | b | 28.65 | 41.75 | 54.06 | 63.83 | 69.08 | 70.26 | 60.24 | a | 47.32 | 33.95 | 26.08 | 43.46 | |||||||||||
2004 | 11.32 | 20.64 | 33.62 | b | 45.15 | 52.98 | a | 62.63 | 67.66 | 63.95 | 64.05 | 48.56 | 38.03 | a | 21.48 | 44.17 | ||||||||||
2005 | 14.76 | 24.93 | 25.95 | a | 47.38 | 53.18 | a | 71.08 | 72.37 | 70.19 | 63.78 | 50.76 | 34.93 | b | 18.77 | 45.67 | ||||||||||
2006 | 28.23 | 19.11 | 31.84 | 49.43 | a | 57.27 | 65.75 | 73.50 | 68.45 | 57.53 | 42.89 | 37.12 | 27.29 | 46.53 | ||||||||||||
2007 | 22.45 | 13.48 | b | 34.11 | 43.63 | 59.27 | 67.95 | 69.73 | a | 69.05 | 60.83 | a | 53.35 | a | 33.62 | 18.37 | 45.49 | |||||||||
2008 | 15.53 | 13.77 | a | 26.05 | 44.37 | 52.31 | 66.95 | a | 70.19 | b | 67.48 | 61.00 | 48.52 | a | 34.47 | a | 13.90 | 42.88 | ||||||||
2009 | 8.26 | 21.34 | 29.11 | 43.67 | 56.58 | 65.42 | 66.21 | 66.35 | a | 62.60 | 43.23 | 40.42 | 18.90 | 43.51 | ||||||||||||
2010 | 17.39 | 23.11 | 37.77 | 50.33 | 58.82 | 65.57 | 71.82 | 71.00 | a | 57.90 | 51.06 | 36.10 | 20.25 | a | 46.76 | |||||||||||
2011 | 14.23 | a | 19.00 | 28.05 | 41.00 | a | 54.79 | 64.82 | 74.24 | b | 69.85 | a | 57.85 | 50.66 | 37.08 | 27.83 | a | 44.95 | ||||||||
2012 | 21.69 | 27.41 | 45.62 | a | 46.23 | 60.32 | 68.92 | 75.53 | 68.39 | 59.17 | 46.34 | 34.62 | 26.61 | 48.40 | ||||||||||||
2013 | 17.35 | 16.70 | 25.27 | 38.37 | 56.98 | 65.05 | 69.39 | 68.10 | 61.07 | a | 47.40 | 32.38 | 13.16 | 42.60 | ||||||||||||
2014 | 7.08 | 7.52 | 20.74 | 41.04 | c | 56.05 | 67.65 | 67.41 | b | 68.37 | 60.12 | b | 46.85 | 26.23 | 24.76 | 41.15 | ||||||||||
2015 | 14.93 | a | 8.89 | 31.71 | 45.22 | 57.94 | 63.81 | a | 69.48 | a | 67.97 | a | 65.40 | 49.47 | 40.93 | a | 33.58 | 45.78 | ||||||||
2016 | 17.92 | 23.25 | a | 36.90 | 41.81 | a | 57.15 | 66.42 | 71.04 | d | 70.54 | e | 63.82 | 51.29 | 42.82 | 21.32 | 47.02 | |||||||||
2017 | 20.73 | a | 26.82 | 29.69 | 47.15 | 54.34 | 67.48 | a | 70.21 | 65.79 | 63.36 | a | 51.87 | a | 32.93 | 18.44 | 45.73 | |||||||||
2018 | 17.03 | 18.21 | 30.45 | 33.92 | 62.95 | 68.10 | 72.26 | 70.73 | 61.92 | 44.79 | 29.67 | c | 26.79 | 44.73 | ||||||||||||
2019 | 12.70 | c | 13.21 | 26.29 | 42.40 | 52.48 | 64.05 | 72.42 | 67.11 | 62.37 | 47.08 | a | 29.92 | 24.39 | 42.87 | |||||||||||
2020 | 23.52 | 20.05 | 34.47 | 41.22 | 55.34 | 67.40 | 73.71 | 70.42 | 58.33 | 42.87 | 39.50 | 26.18 | 46.08 | |||||||||||||
2021 | 21.66 | 12.79 | 36.90 | 46.77 | 55.90 | 69.67 | 70.58 | 70.37 | 62.20 | 55.00 | 34.83 | 26.05 | 46.89 | |||||||||||||
2022 | 11.61 | 16.98 | 30.65 | 40.60 | 58.48 | 66.67 | 70.48 | 68.50 | 60.92 | 48.15 | 37.50 | 21.76 | 44.36 | |||||||||||||
2023 | 25.50 | 23.43 | 30.03 | 45.33 | 56.76 | 68.27 | 70.90 | 69.29 | 63.82 | 50.44 | 36.07 | 33.19 | 47.75 | |||||||||||||
2024 | 22.97 | 32.03 | 36.69 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.56 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 15.73 | 19.29 | 30.19 | 43.94 | 56.02 | 65.56 | 70.05 | 67.83 | 59.45 | 47.86 | 34.35 | 21.65 | 44.14 | |||||||||||||
S.D. | 5.38 | 5.38 | 4.52 | 3.20 | 3.38 | 2.62 | 2.28 | 2.29 | 2.70 | 3.39 | 3.91 | 5.12 | 1.59 | |||||||||||||
SKEW | -0.08 | 0.10 | 0.68 | -0.39 | 0.07 | -0.38 | -0.05 | -0.08 | -0.10 | 0.45 | -0.27 | -0.29 | 0.41 | |||||||||||||
MAX | 28.23 | 32.03 | 45.62 | 50.33 | 63.55 | 71.08 | 75.53 | 72.42 | 65.40 | 57.15 | 42.82 | 33.58 | 48.40 | |||||||||||||
MIN | 3.04 | 7.52 | 20.74 | 33.92 | 48.65 | 58.37 | 63.61 | 63.16 | 53.68 | 41.62 | 25.71 | 9.37 | 41.15 | |||||||||||||
YRS | 71 | 71 | 71 | 70 | 71 | 70 | 69 | 71 | 71 | 71 | 70 | 70 | 59 |