YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.20 | 6.55 | 15.87 | j | ||
1963 | -7.52 | -0.54 | 18.97 | 33.70 | 41.00 | 56.17 | 56.26 | 55.55 | 44.97 | ----- | z | 19.97 | -3.65 | 28.63 | a | |||||||||||
1964 | 1.29 | 5.48 | 5.94 | 31.83 | a | 43.03 | 53.80 | e | 62.96 | c | 51.87 | a | 41.20 | 31.16 | 18.73 | -5.94 | 28.45 | |||||||||
1965 | -13.45 | -5.81 | b | 1.55 | 32.13 | 40.84 | 51.07 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 17.72 | f | |||||
1966 | ----- | z | ----- | z | ----- | z | ----- | z | 41.86 | i | 54.35 | d | 61.16 | 54.55 | 45.93 | 33.55 | 14.43 | b | 2.29 | 38.04 | e | |||||
1967 | -0.71 | -4.36 | c | ----- | z | 30.10 | 38.76 | b | 50.71 | b | 55.15 | e | 52.06 | 47.60 | 34.55 | 20.90 | 6.39 | 30.11 | a | |||||||
1968 | -1.41 | b | -0.72 | 22.74 | 31.37 | 41.03 | 53.19 | c | 56.81 | 55.16 | 47.50 | 36.58 | 23.67 | 1.16 | 30.59 | |||||||||||
1969 | -9.94 | 4.93 | 4.97 | 35.07 | 44.33 | a | 47.33 | 57.63 | d | 59.65 | 48.57 | 33.06 | 22.53 | 7.68 | 29.65 | |||||||||||
1970 | -8.26 | -1.11 | 8.13 | 31.07 | 42.13 | 57.47 | 59.42 | 55.97 | 48.40 | 36.52 | 20.73 | -0.71 | 29.15 | |||||||||||||
1971 | -11.00 | 2.58 | b | 18.52 | 32.77 | 40.68 | 56.37 | 54.21 | b | 54.90 | 48.17 | 39.00 | 22.20 | 1.46 | c | 29.99 | ||||||||||
1972 | -8.68 | -6.69 | 14.39 | 31.43 | 48.24 | b | 54.07 | 55.72 | f | 57.37 | a | 45.03 | 33.00 | 21.21 | a | -4.23 | a | 25.92 | a | |||||||
1973 | 1.75 | c | 7.93 | 30.35 | 30.48 | a | 42.59 | d | 53.63 | 56.39 | 61.19 | 45.93 | 41.42 | 18.50 | 3.94 | 32.84 | ||||||||||
1974 | -8.65 | 0.21 | 15.00 | d | 33.10 | 42.96 | d | 52.43 | 62.26 | 54.29 | 40.93 | 35.45 | 22.87 | 12.23 | 30.26 | |||||||||||
1975 | 0.68 | 0.89 | 8.90 | 28.29 | b | 44.54 | c | 54.23 | 63.90 | 57.37 | a | 44.03 | a | 39.32 | 23.57 | 5.81 | 30.96 | |||||||||
1976 | -1.68 | 13.10 | 11.87 | 35.37 | 40.72 | b | 55.27 | d | 56.55 | b | 57.10 | b | 44.80 | 28.74 | 13.93 | -3.70 | a | 29.34 | ||||||||
1977 | -13.83 | a | 9.52 | a | 22.10 | a | 35.97 | 54.03 | b | 54.30 | 59.74 | 51.39 | 48.57 | 35.28 | b | 15.19 | i | 0.19 | 32.48 | a | ||||||
1978 | -9.27 | a | -4.00 | 14.23 | a | 32.55 | a | 46.28 | b | 53.07 | 58.13 | 57.16 | 51.07 | b | ----- | z | 11.73 | -4.48 | 27.86 | a | ||||||
1979 | -14.81 | -11.79 | 10.45 | 27.30 | 38.74 | 52.33 | 58.32 | 53.32 | ----- | z | ----- | z | ----- | z | 23.33 | v | 26.73 | d | ||||||||
1980 | -0.58 | e | 0.32 | a | 10.87 | 33.13 | g | 43.65 | 50.87 | 55.07 | b | 53.89 | c | ----- | z | 32.00 | d | 22.97 | 3.63 | a | 27.27 | b | ||||
1981 | 3.00 | a | 9.46 | 21.39 | c | 32.58 | f | 42.35 | 50.88 | d | 56.90 | 55.13 | h | 42.32 | b | 33.52 | 24.80 | 0.04 | c | 28.47 | b | |||||
1982 | -18.68 | c | -1.18 | 13.68 | f | 29.72 | a | 47.72 | b | 46.07 | 56.65 | 53.78 | h | 42.81 | c | 35.61 | 15.64 | e | 12.23 | 26.66 | b | |||||
1983 | 5.42 | e | 14.18 | 24.83 | a | 29.70 | 37.80 | a | 54.00 | 61.33 | a | 61.74 | 47.07 | 36.94 | 25.72 | a | -8.30 | k | 36.25 | a | ||||||
1984 | -2.21 | b | 17.21 | 16.00 | a | 32.70 | 39.45 | 54.50 | 57.05 | l | 59.23 | 42.03 | 37.81 | 20.43 | -1.29 | 28.71 | a | |||||||||
1985 | -4.10 | a | 1.04 | 24.29 | 32.73 | 46.77 | 48.50 | 54.74 | 53.45 | 45.10 | 33.58 | 5.03 | -8.32 | 27.73 | ||||||||||||
1986 | 3.00 | ----- | z | 22.31 | b | 34.24 | a | 46.00 | 54.13 | 60.39 | 53.00 | a | 47.13 | 35.30 | a | 13.27 | 11.90 | 34.61 | a | |||||||
1987 | 7.90 | 19.62 | b | 23.61 | 36.57 | 48.47 | a | 55.69 | a | 61.33 | a | 55.16 | 47.53 | 32.00 | a | 23.21 | a | 13.84 | 35.41 | |||||||
1988 | -4.65 | -2.37 | b | 21.87 | 30.03 | 49.93 | a | 60.43 | 61.29 | ----- | z | 47.77 | 31.47 | a | 19.29 | b | 4.83 | a | 29.08 | a | ||||||
1989 | -3.57 | c | -9.96 | ----- | z | ----- | z | 46.06 | 51.27 | 61.10 | 57.23 | 46.70 | 32.39 | 12.80 | -6.90 | 28.71 | b | |||||||||
1990 | 12.23 | a | 4.43 | 21.74 | 31.83 | 40.81 | 55.50 | 57.10 | ----- | z | 50.80 | 32.60 | u | 19.93 | a | 0.84 | 29.52 | b | ||||||||
1991 | -4.65 | 9.71 | 19.47 | a | 34.93 | 50.29 | 59.37 | 58.97 | 59.13 | 47.17 | 31.03 | a | 14.67 | 8.97 | 32.42 | |||||||||||
1992 | 6.90 | 14.69 | 23.94 | 30.00 | a | 44.70 | a | 50.27 | 53.19 | 52.55 | 44.37 | 32.16 | 22.03 | a | 0.54 | c | 31.28 | |||||||||
1993 | -4.26 | 0.21 | 14.81 | 31.23 | 42.81 | 52.07 | a | 56.87 | 57.39 | 41.87 | 31.23 | 15.93 | 6.29 | 28.87 | ||||||||||||
1994 | -13.74 | -6.12 | b | 21.58 | 30.62 | a | 45.97 | 56.63 | 56.68 | 54.42 | 49.57 | 40.43 | a | 25.13 | 12.13 | a | 31.11 | |||||||||
1995 | 1.82 | c | -0.18 | 20.18 | c | 29.80 | 43.30 | a | 59.70 | 59.23 | a | 60.45 | 45.97 | 36.35 | 14.11 | b | 2.59 | d | 31.11 | |||||||
1996 | -11.35 | 0.19 | b | 7.68 | 28.50 | 41.65 | 56.17 | a | 57.03 | a | 57.52 | 47.23 | 35.74 | 9.30 | -2.45 | 27.27 | ||||||||||
1997 | -8.38 | b | 0.96 | 8.81 | 29.07 | 39.81 | 56.24 | a | 60.26 | 55.71 | 49.93 | 37.68 | 17.23 | 17.97 | 30.44 | |||||||||||
1998 | 2.93 | b | 22.33 | a | 21.00 | b | 36.80 | 49.97 | 53.97 | 60.03 | 59.74 | 49.57 | 39.13 | 21.76 | a | 10.00 | a | 35.60 | ||||||||
1999 | -3.57 | a | 13.79 | 23.55 | 35.23 | 47.32 | 55.80 | 60.00 | 56.58 | 46.00 | 33.26 | 25.10 | 13.23 | a | 33.86 | |||||||||||
2000 | -1.45 | 12.25 | a | 25.90 | 30.70 | 45.61 | 52.93 | 59.52 | 57.42 | 45.73 | 38.47 | a | 19.63 | -8.00 | 31.56 | |||||||||||
2001 | 5.07 | a | -5.14 | 14.58 | 34.90 | 47.10 | 55.40 | 60.03 | 59.43 | a | 48.40 | 34.35 | 30.14 | a | 12.10 | 33.03 | ||||||||||
2002 | 8.71 | 13.63 | a | 9.90 | 29.10 | a | 35.86 | b | 57.43 | 62.52 | 57.52 | 50.23 | 30.23 | 18.55 | a | 9.28 | b | 31.91 | ||||||||
2003 | -0.23 | -2.56 | a | 13.71 | 32.30 | 42.74 | 54.37 | 59.55 | 59.94 | 48.23 | 37.35 | 16.64 | b | 10.33 | a | 31.03 | ||||||||||
2004 | -8.42 | 6.26 | b | 21.03 | 30.80 | 41.90 | 51.50 | 56.90 | 51.39 | ----- | z | 39.28 | b | 24.83 | 8.07 | b | 29.41 | a | ||||||||
2005 | -5.03 | a | 6.41 | a | 18.34 | b | 36.48 | a | 43.35 | 60.00 | 60.81 | 56.58 | 51.40 | 38.71 | 23.55 | a | 10.00 | b | 33.38 | |||||||
2006 | 14.47 | a | -1.14 | 18.74 | 38.90 | a | 47.28 | b | 56.70 | 61.32 | 57.35 | 47.17 | ----- | z | 21.50 | 15.26 | 34.32 | a | ||||||||
2007 | 3.94 | -3.86 | 24.04 | c | 30.50 | 48.61 | 57.63 | 60.45 | 55.35 | 48.47 | 40.61 | 22.30 | -1.18 | c | 32.24 | |||||||||||
2008 | -3.70 | d | -3.77 | c | 13.90 | 29.93 | 38.71 | 53.33 | 58.77 | ----- | z | 48.10 | 37.84 | 23.93 | -5.71 | 26.49 | a | |||||||||
2009 | -11.96 | e | 1.33 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | -5.31 | j |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.11 | u | 62.42 | 53.00 | 43.90 | 34.10 | 22.13 | 5.13 | 36.78 | f | ||||||
2013 | -0.32 | 2.14 | 4.52 | 24.30 | 44.74 | 55.93 | 58.74 | 56.84 | 52.27 | 36.58 | 18.07 | -6.29 | 28.96 | |||||||||||||
2014 | -9.45 | -6.93 | 11.81 | 28.43 | 44.77 | 56.63 | 57.68 | 58.35 | 47.87 | 35.97 | 14.13 | 12.90 | 29.35 | |||||||||||||
2015 | 5.65 | -3.57 | e | 20.68 | 33.03 | 42.81 | 55.13 | 60.29 | 55.81 | 50.87 | 38.58 | 26.57 | 15.45 | 33.44 | ||||||||||||
2016 | 3.65 | 14.43 | a | 27.90 | 30.40 | e | 46.61 | 55.47 | 60.90 | 57.94 | 49.23 | 38.77 | 32.63 | 4.58 | 35.21 | |||||||||||
2017 | 5.77 | 15.18 | 18.84 | 31.20 | 41.68 | 54.77 | 58.23 | 52.97 | 49.60 | 36.26 | 19.70 | 4.06 | 32.35 | |||||||||||||
2018 | 1.06 | -3.96 | 17.83 | y | 23.80 | 48.48 | 58.53 | 58.32 | 56.42 | 48.00 | 31.90 | 13.73 | 10.87 | 31.56 | a | |||||||||||
2019 | -3.19 | -9.82 | 10.74 | 33.00 | a | 39.74 | 54.30 | 61.10 | 56.03 | 52.23 | 34.45 | 20.23 | 17.73 | e | 30.55 | |||||||||||
2020 | 0.31 | b | ----- | z | ----- | z | ----- | z | ----- | z | 58.53 | 61.94 | 58.71 | 46.73 | 30.19 | 22.13 | 11.03 | 36.20 | d | |||||||
2021 | 11.55 | -1.39 | 24.55 | 29.90 | 41.81 | 57.00 | 61.48 | 58.52 | 51.33 | 41.35 | 24.13 | 4.97 | 33.77 | |||||||||||||
2022 | -7.48 | -6.32 | 17.29 | 28.70 | 44.74 | 56.50 | 60.43 | a | 57.87 | 49.37 | 34.74 | 19.67 | 1.70 | a | 29.77 | |||||||||||
2023 | 3.55 | -0.11 | 3.71 | 25.27 | 48.97 | 60.70 | 55.42 | 58.00 | b | 52.20 | 36.71 | 22.90 | 22.68 | 32.50 | ||||||||||||
2024 | 8.71 | 20.07 | 20.00 | 31.84 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 16.26 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -2.08 | 2.88 | 16.85 | 31.50 | 44.00 | 54.64 | 58.98 | 56.38 | 47.31 | 35.42 | 20.10 | 5.00 | 31.30 | |||||||||||||
S.D. | 7.42 | 8.37 | 6.86 | 3.09 | 3.69 | 3.08 | 2.46 | 2.58 | 2.87 | 3.16 | 5.01 | 7.39 | 2.12 | |||||||||||||
SKEW | 0.02 | 0.55 | -0.37 | -0.09 | 0.25 | -0.38 | -0.28 | -0.13 | -0.36 | -0.02 | -0.44 | 0.08 | 0.24 | |||||||||||||
MAX | 14.47 | 22.33 | 30.35 | 38.90 | 54.03 | 60.70 | 63.90 | 61.74 | 52.27 | 41.42 | 32.63 | 22.68 | 35.60 | |||||||||||||
MIN | -18.68 | -11.79 | 1.55 | 23.80 | 35.86 | 46.07 | 53.19 | 51.39 | 40.93 | 28.74 | 5.03 | -8.32 | 27.27 | |||||||||||||
YRS | 58 | 56 | 52 | 52 | 55 | 57 | 55 | 52 | 54 | 52 | 56 | 56 | 35 |