YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.61 | m | 31.20 | 16.90 | b | 24.05 | j | |
1951 | 15.69 | 21.02 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.70 | t | 49.26 | 29.12 | 22.66 | 27.55 | g | |||||
1952 | 21.84 | 27.07 | 29.21 | 46.68 | 54.16 | 64.60 | 68.26 | 66.97 | 60.07 | a | 45.48 | c | 38.53 | 29.63 | 46.04 | |||||||||||
1953 | 26.00 | a | 24.34 | 33.00 | 41.23 | 50.61 | 62.98 | 68.50 | 70.39 | 60.30 | 53.08 | 42.03 | 28.82 | 46.77 | ||||||||||||
1954 | 21.94 | 30.93 | 31.06 | 43.28 | 49.21 | 62.50 | 67.73 | 67.84 | 62.03 | a | 49.94 | 38.95 | 27.06 | 46.04 | ||||||||||||
1955 | 19.76 | 22.74 | a | 29.21 | 48.28 | 54.13 | 61.22 | 70.92 | 73.35 | 59.30 | 50.18 | 34.52 | d | 18.94 | n | 47.60 | a | |||||||||
1956 | 23.06 | 23.50 | 28.58 | 40.07 | 49.65 | 61.92 | 65.18 | 67.75 | a | 55.62 | b | 51.17 | a | 35.75 | 26.40 | 44.05 | ||||||||||
1957 | 14.21 | 25.11 | 31.61 | 42.33 | a | 50.77 | 60.43 | b | 67.95 | 68.50 | 59.13 | 49.18 | 36.62 | 28.60 | 44.54 | |||||||||||
1958 | 23.53 | 18.45 | 33.74 | 44.21 | a | 52.68 | 57.60 | a | 65.29 | c | 67.87 | 60.00 | 49.87 | a | 38.98 | 18.45 | 44.22 | |||||||||
1959 | 14.03 | 18.16 | 29.02 | 43.42 | 52.37 | 61.97 | 65.06 | d | 69.98 | 59.90 | a | 46.63 | 29.55 | 31.24 | 43.44 | |||||||||||
1960 | 24.45 | 29.14 | v | 27.00 | h | 42.88 | 49.97 | 59.85 | j | 65.89 | 67.05 | 62.30 | 48.76 | 38.17 | 21.50 | 46.77 | c | |||||||||
1961 | 18.79 | 28.46 | 33.81 | 40.40 | 49.56 | 61.05 | 66.97 | a | 69.53 | 62.38 | 49.90 | 37.25 | 22.85 | 45.08 | ||||||||||||
1962 | 15.02 | 19.12 | 30.92 | 42.45 | 53.76 | 60.80 | 66.35 | 67.37 | 57.12 | a | 51.35 | 38.70 | 23.19 | 43.85 | ||||||||||||
1963 | 10.69 | 15.09 | 32.03 | 44.37 | 50.63 | 59.65 | 68.53 | 64.90 | 60.30 | 56.89 | 41.72 | 17.47 | 43.52 | |||||||||||||
1964 | 26.81 | 26.50 | 31.05 | 43.78 | ----- | z | 62.22 | 68.94 | 65.42 | 57.37 | 46.69 | 39.42 | 23.74 | 44.72 | a | |||||||||||
1965 | 19.48 | 20.05 | 26.53 | 40.48 | 51.18 | 59.48 | 65.39 | 66.63 | 57.78 | 49.53 | 38.43 | 32.00 | 43.91 | |||||||||||||
1966 | 14.63 | 23.09 | 34.45 | 41.23 | 48.97 | 61.00 | 70.18 | 67.40 | 60.52 | 48.03 | 36.58 | 25.18 | 44.27 | |||||||||||||
1967 | 23.66 | 18.16 | 30.34 | 42.40 | 47.81 | 60.40 | 64.34 | 63.08 | 59.07 | 48.40 | 33.72 | 26.48 | 43.15 | |||||||||||||
1968 | 21.06 | 18.90 | 35.61 | 43.07 | 49.94 | 59.38 | 63.24 | 64.77 | a | 61.40 | 48.65 | 37.97 | 25.03 | 44.08 | ||||||||||||
1969 | 17.69 | 25.38 | 28.81 | 42.22 | 51.06 | 55.30 | 65.63 | a | 68.27 | 60.93 | 47.27 | 34.97 | 26.63 | 43.68 | ||||||||||||
1970 | 13.63 | 21.32 | 30.29 | 43.20 | 50.85 | 60.73 | 67.18 | 68.76 | 59.42 | 49.71 | 37.67 | 25.05 | 43.98 | |||||||||||||
1971 | 14.52 | 20.71 | 27.53 | 40.10 | 49.60 | 60.33 | 64.37 | 63.19 | 61.22 | 54.71 | 36.83 | 27.68 | 43.40 | |||||||||||||
1972 | 15.71 | 19.47 | 27.48 | 38.68 | 52.89 | 57.63 | 63.23 | 65.02 | 58.13 | 46.69 | 36.19 | a | 21.60 | 41.89 | ||||||||||||
1973 | 23.66 | 25.66 | 37.85 | 39.75 | 49.68 | 60.98 | 66.29 | 67.45 | 58.98 | 52.98 | 35.59 | a | 24.19 | 45.26 | ||||||||||||
1974 | 20.97 | 21.36 | 31.95 | 41.70 | 49.34 | 57.80 | 66.65 | a | 64.81 | 55.62 | 46.60 | 37.05 | 29.11 | 43.58 | ||||||||||||
1975 | 23.19 | 23.02 | 27.79 | 38.05 | a | 53.61 | 61.37 | 68.60 | 68.21 | 57.57 | 50.79 | 40.33 | 26.08 | 44.88 | ||||||||||||
1976 | 16.19 | 28.14 | 33.18 | 43.07 | 50.73 | 64.28 | 70.25 | a | 65.94 | 59.63 | 46.16 | 30.07 | 14.74 | 43.53 | ||||||||||||
1977 | 7.55 | 23.66 | 36.61 | 44.67 | 55.89 | 58.95 | 66.24 | 62.61 | 59.95 | a | 48.56 | 36.40 | 22.21 | 43.61 | ||||||||||||
1978 | 15.60 | 16.41 | 29.05 | 41.75 | 50.95 | 57.87 | 62.00 | 63.50 | 63.14 | a | 48.35 | 36.05 | 21.34 | 42.17 | ||||||||||||
1979 | 10.56 | 14.17 | b | 30.21 | 39.02 | 48.79 | 58.08 | 67.03 | 65.97 | 61.02 | 47.18 | 36.75 | 30.45 | 42.44 | ||||||||||||
1980 | 20.92 | 21.19 | 29.05 | 44.22 | 54.82 | 59.52 | 66.74 | 67.58 | 60.72 | 46.76 | 37.90 | 24.65 | 44.50 | |||||||||||||
1981 | 19.06 | 25.25 | 34.63 | 44.33 | 50.08 | 61.95 | 66.84 | 67.50 | 59.98 | 46.44 | 39.70 | 26.34 | 45.18 | |||||||||||||
1982 | 12.45 | a | 21.05 | 30.73 | 39.22 | 53.55 | 57.17 | 65.23 | 66.02 | 57.63 | 49.71 | ----- | z | 32.00 | a | 44.07 | a | |||||||||
1983 | 26.45 | a | 29.45 | 33.40 | a | 39.46 | b | 47.80 | a | 61.17 | a | 69.82 | 71.55 | 58.97 | a | 49.48 | 38.91 | a | 14.80 | a | 45.11 | |||||
1984 | 16.32 | a | 28.98 | 26.98 | a | 42.59 | a | 49.63 | 61.44 | c | 65.31 | 68.40 | 54.53 | a | 49.30 | a | 35.83 | d | 27.28 | f | 45.39 | a | ||||
1985 | 14.40 | b | 18.44 | a | 35.21 | b | 42.34 | b | 53.10 | a | 57.50 | a | 66.12 | b | 64.77 | 58.29 | a | 47.88 | a | 34.72 | a | 14.35 | a | 42.26 | ||
1986 | 19.61 | 20.87 | a | 32.90 | 45.22 | c | 54.68 | a | 59.71 | a | 67.02 | 65.77 | 60.50 | 49.63 | a | 33.78 | 27.23 | 44.74 | ||||||||
1987 | 23.68 | a | 30.54 | 35.39 | c | 44.72 | a | 53.47 | b | 66.57 | 68.10 | 67.85 | a | 61.05 | 45.67 | a | 39.30 | 30.13 | 47.21 | |||||||
1988 | 17.17 | a | 18.55 | 32.97 | 43.38 | b | 55.19 | 64.55 | b | 69.48 | 68.53 | a | 59.93 | a | 44.37 | a | 38.20 | b | 21.91 | c | 44.52 | |||||
1989 | 28.55 | a | 14.52 | c | 26.08 | 39.65 | 50.05 | 59.10 | 68.07 | a | 67.47 | a | 58.78 | 47.32 | a | 32.88 | 13.13 | 42.13 | ||||||||
1990 | 28.45 | a | 24.30 | 33.34 | 41.27 | 48.92 | 59.20 | 65.77 | 66.55 | 61.87 | 47.55 | 40.10 | 24.69 | 45.17 | ||||||||||||
1991 | 16.92 | 25.00 | a | 33.21 | 43.90 | a | 53.02 | 64.13 | 67.60 | 69.47 | 58.47 | 46.71 | 30.80 | 26.94 | 44.68 | |||||||||||
1992 | 24.26 | 27.79 | 31.16 | 38.57 | a | 51.08 | 58.58 | 63.19 | 61.91 | b | 54.58 | 46.50 | a | 34.63 | 26.63 | 43.24 | ||||||||||
1993 | 21.02 | a | 20.39 | 30.19 | 39.40 | 50.35 | 58.60 | 66.60 | a | 68.98 | 54.77 | b | 45.97 | 35.05 | 26.28 | a | 43.13 | |||||||||
1994 | 8.93 | a | 14.55 | 31.16 | 42.69 | a | 50.00 | c | 60.65 | c | 66.30 | a | 63.97 | a | 62.41 | a | 50.43 | a | 38.68 | e | 31.28 | a | 43.42 | |||
1995 | 22.42 | a | 21.00 | 32.16 | 39.91 | b | 50.97 | 64.75 | 66.68 | 72.65 | 57.66 | b | 48.12 | b | 28.55 | 20.58 | 43.79 | |||||||||
1996 | 16.74 | 20.61 | a | 25.27 | c | 38.57 | a | 48.50 | 58.57 | a | 63.74 | 67.27 | 60.67 | 47.06 | 30.14 | a | 24.25 | a | 41.78 | |||||||
1997 | 17.89 | 24.07 | 29.84 | 39.52 | 47.34 | b | 60.35 | c | 65.06 | 64.97 | a | 60.95 | 47.02 | a | 32.80 | b | 30.00 | 43.32 | ||||||||
1998 | 24.36 | c | 32.25 | b | 33.33 | a | 43.90 | 54.02 | d | 63.27 | 69.20 | c | 69.34 | b | 63.33 | 50.86 | c | 39.67 | a | 28.78 | a | 47.69 | ||||
1999 | 17.18 | 29.02 | 32.92 | a | 43.78 | a | 53.53 | 60.16 | a | 69.73 | 66.42 | a | 58.38 | a | 47.05 | 41.33 | a | 27.12 | b | 45.55 | ||||||
2000 | 19.27 | 25.69 | b | 38.18 | a | 40.38 | a | 51.30 | a | 60.43 | 65.69 | 67.83 | a | 59.38 | 50.65 | 34.00 | b | 14.05 | a | 43.91 | ||||||
2001 | 23.30 | a | 20.05 | 29.43 | a | 45.31 | a | 51.87 | 59.00 | 67.85 | a | 69.80 | a | 58.00 | 48.02 | j | 42.61 | c | 30.55 | b | 45.25 | a | ||||
2002 | 27.92 | a | 28.34 | 27.47 | a | 40.64 | a | 47.77 | 59.84 | a | 70.63 | a | 66.61 | 62.17 | c | 44.48 | a | 34.54 | b | 26.68 | a | 44.76 | ||||
2003 | 17.10 | 16.00 | a | 28.58 | a | 38.43 | a | 50.48 | a | 57.81 | a | 64.66 | 68.41 | c | 58.35 | 45.71 | 35.61 | b | 28.45 | b | 42.47 | |||||
2004 | 13.27 | a | 23.48 | b | 33.41 | c | 42.19 | a | 49.16 | b | 58.63 | d | 64.22 | f | ----- | z | 58.00 | o | 49.97 | a | 40.66 | a | 24.98 | e | 37.30 | c |
2005 | 19.81 | 26.89 | 28.02 | c | 44.82 | b | 51.03 | b | 65.58 | 69.48 | a | 69.03 | a | 63.50 | c | 49.72 | a | 36.33 | a | 21.97 | 45.52 | |||||
2006 | 30.91 | b | 21.04 | 32.65 | 46.52 | a | 51.43 | b | 61.90 | 69.68 | 69.13 | 58.90 | 44.65 | 38.92 | 30.48 | a | 46.35 | |||||||||
2007 | 24.63 | a | 14.84 | 34.24 | 40.88 | 52.75 | a | 62.57 | 67.66 | 69.23 | a | 59.80 | 52.22 | b | 35.79 | b | 22.89 | 44.79 | ||||||||
2008 | 19.28 | b | 15.43 | b | 27.34 | 41.62 | 49.79 | 60.67 | 65.60 | a | 68.84 | 61.90 | 48.27 | 35.27 | b | 17.60 | 42.63 | |||||||||
2009 | 11.10 | b | 22.28 | a | 29.47 | 41.40 | 51.13 | 60.38 | 65.03 | 62.89 | 61.97 | 44.85 | 42.20 | 23.23 | 42.99 | |||||||||||
2010 | 20.77 | 24.07 | 35.11 | 45.72 | 54.53 | 64.67 | 69.76 | 70.52 | 57.35 | 51.03 | b | 37.18 | 21.79 | b | 46.04 | |||||||||||
2011 | 16.66 | 20.88 | 27.68 | c | 40.05 | 48.98 | a | 60.67 | a | 70.89 | 70.60 | 59.78 | 50.48 | a | 39.60 | a | 30.81 | 44.76 | ||||||||
2012 | 25.19 | 29.26 | 41.14 | c | 42.67 | a | 55.21 | 63.66 | a | 73.45 | 68.90 | 59.65 | 46.24 | 36.77 | 30.83 | a | 47.75 | |||||||||
2013 | 20.89 | 20.34 | 26.15 | 38.27 | 50.39 | 59.17 | a | 66.97 | a | 66.19 | 60.97 | 49.13 | a | 33.92 | 16.74 | 42.43 | ||||||||||
2014 | 9.58 | 11.11 | 22.02 | 38.71 | a | 49.83 | a | 58.53 | 61.79 | 66.12 | a | 57.78 | 48.22 | b | 29.79 | a | 28.47 | 40.16 | ||||||||
2015 | 17.74 | 10.38 | 30.29 | 41.45 | 50.13 | 59.09 | a | 67.71 | 65.87 | 61.67 | 51.97 | a | 40.82 | 35.79 | 44.41 | |||||||||||
2016 | 20.76 | 25.48 | 34.77 | 39.45 | 52.87 | 64.17 | a | 68.50 | 71.28 | a | 65.60 | a | 53.05 | a | 44.43 | a | 25.03 | 47.12 | ||||||||
2017 | 23.03 | 28.52 | 31.00 | a | 44.72 | 50.27 | 63.33 | 67.79 | 66.94 | 62.98 | 52.40 | 35.83 | 21.19 | 45.67 | ||||||||||||
2018 | 18.98 | 21.18 | 29.48 | 33.98 | 55.19 | 62.55 | 68.47 | 70.40 | 61.35 | 46.77 | 31.45 | 29.05 | 44.07 | |||||||||||||
2019 | 17.10 | 18.16 | 26.47 | 41.17 | 48.31 | 59.07 | 67.35 | 67.44 | 61.10 | 48.10 | 31.37 | 28.10 | 42.81 | |||||||||||||
2020 | 26.45 | 23.09 | 34.02 | 39.42 | 50.23 | 62.82 | 71.98 | 68.39 | 59.15 | 44.87 | 40.27 | 29.40 | 45.84 | |||||||||||||
2021 | 24.26 | 15.18 | 36.18 | 42.50 | 50.96 | f | 63.67 | 69.42 | 70.18 | 62.55 | 56.19 | 37.15 | 30.58 | 46.17 | a | |||||||||||
2022 | 15.98 | 20.21 | 30.77 | 38.82 | 51.71 | 60.43 | 67.81 | 67.77 | 62.20 | 47.68 | 37.57 | 24.73 | 43.81 | |||||||||||||
2023 | 27.44 | 25.73 | 31.19 | 42.95 | 52.27 | 63.22 | 69.61 | 68.66 | 63.78 | 51.79 | 37.25 | 34.90 | 47.40 | |||||||||||||
2024 | 23.92 | 32.03 | 36.29 | 44.94 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.75 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 19.54 | 22.29 | 31.28 | 41.83 | 51.22 | 60.84 | 67.19 | 67.47 | 59.91 | 48.81 | 36.54 | 25.22 | 44.29 | |||||||||||||
S.D. | 5.15 | 4.95 | 3.42 | 2.50 | 2.11 | 2.31 | 2.32 | 2.36 | 2.24 | 2.66 | 3.49 | 5.07 | 1.55 | |||||||||||||
SKEW | -0.13 | -0.11 | 0.15 | -0.09 | 0.38 | 0.26 | 0.03 | -0.13 | -0.27 | 0.71 | -0.35 | -0.52 | 0.20 | |||||||||||||
MAX | 30.91 | 32.25 | 41.14 | 48.28 | 55.89 | 66.57 | 73.45 | 73.35 | 65.60 | 56.89 | 44.43 | 35.79 | 47.75 | |||||||||||||
MIN | 7.55 | 10.38 | 22.02 | 33.98 | 47.34 | 55.30 | 61.79 | 61.91 | 54.53 | 44.37 | 28.55 | 13.13 | 40.16 | |||||||||||||
YRS | 74 | 73 | 72 | 72 | 70 | 71 | 71 | 71 | 71 | 72 | 73 | 72 | 64 |