YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1962 | ----- | z | ----- | z | ----- | z | 56.37 | c | 62.70 | d | 72.57 | a | 76.21 | b | 75.61 | 67.52 | 57.00 | b | ----- | z | ----- | z | 66.85 | e | ||
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.21 | f | 79.34 | 72.50 | 67.60 | j | 60.29 | 43.91 | a | 28.11 | 56.83 | g | ||||
1964 | 25.65 | 30.03 | 37.53 | 50.97 | 62.37 | 69.85 | 80.00 | a | 73.31 | 66.20 | 57.65 | 38.90 | 30.56 | 51.92 | ||||||||||||
1965 | 33.19 | 33.84 | 40.05 | 51.60 | a | 59.63 | 67.70 | 75.68 | 74.02 | 61.65 | 56.58 | 46.65 | 32.93 | a | 52.79 | |||||||||||
1966 | 25.16 | 29.82 | 45.32 | 52.85 | 65.40 | 72.52 | 79.61 | 76.18 | 67.88 | 53.40 | 45.02 | 31.55 | 53.73 | |||||||||||||
1967 | 26.50 | 37.73 | 49.53 | 52.58 | 58.98 | 67.25 | 76.89 | 75.82 | a | 67.42 | 56.75 | a | 43.15 | 22.21 | 52.90 | |||||||||||
1968 | 18.79 | 38.79 | 46.06 | 48.33 | 59.81 | 73.08 | 76.92 | 70.06 | 64.55 | 54.87 | a | 39.73 | 26.02 | b | 51.42 | |||||||||||
1969 | 30.68 | a | 35.20 | 40.15 | 55.73 | 66.87 | a | 68.43 | 79.00 | 78.34 | 69.28 | 47.66 | 40.22 | 33.79 | 53.78 | |||||||||||
1970 | 30.44 | 40.93 | 40.53 | 47.10 | a | 64.02 | 70.75 | 78.29 | 77.82 | 64.05 | 49.07 | a | 41.13 | 32.98 | 53.09 | |||||||||||
1971 | 29.29 | 34.57 | 42.65 | 53.21 | a | 60.32 | 73.38 | 79.23 | 76.53 | 63.40 | 53.15 | a | 38.28 | 27.13 | 52.60 | |||||||||||
1972 | 29.68 | 39.02 | 50.63 | 54.83 | 61.95 | 72.53 | 77.68 | 74.89 | 66.52 | 54.26 | 36.95 | 24.74 | 53.64 | |||||||||||||
1973 | 13.75 | c | 29.95 | 42.13 | 47.60 | 60.18 | a | 68.74 | a | 75.92 | 76.08 | 64.07 | 55.35 | 40.67 | 30.32 | 50.40 | ||||||||||
1974 | 18.13 | a | 21.09 | 46.65 | 49.05 | 64.77 | 73.80 | 77.19 | 73.67 | b | 66.11 | b | 57.28 | d | 40.40 | 28.53 | a | 51.39 | ||||||||
1975 | 22.02 | 32.46 | a | 40.69 | 46.57 | a | 56.68 | 66.93 | 77.73 | ----- | z | 65.28 | 53.26 | 37.93 | 28.94 | 48.04 | a | |||||||||
1976 | 23.85 | 38.36 | a | 40.00 | 52.45 | 60.97 | 69.62 | 78.26 | 73.84 | 66.02 | a | 50.40 | 41.22 | 30.00 | 52.08 | |||||||||||
1977 | 25.37 | 36.80 | 40.08 | 54.73 | 60.50 | 75.83 | 76.15 | 74.94 | 67.47 | 54.60 | b | 41.15 | 33.95 | 53.46 | ||||||||||||
1978 | 30.39 | 34.86 | 47.19 | 53.80 | 58.34 | 71.65 | 75.68 | 72.94 | 65.60 | 56.25 | a | 42.14 | a | 18.39 | 52.27 | |||||||||||
1979 | 18.55 | 24.34 | 40.32 | 51.58 | 59.52 | 70.38 | 77.48 | 73.87 | 70.40 | 57.21 | c | 33.32 | 28.44 | 50.45 | ||||||||||||
1980 | 32.26 | 39.45 | 41.63 | 52.07 | 59.61 | 74.18 | 79.60 | 74.81 | 67.43 | 52.89 | 41.17 | 39.52 | 54.55 | |||||||||||||
1981 | 36.73 | 37.30 | 44.10 | 56.52 | a | 60.74 | 73.72 | 78.24 | 75.63 | 67.71 | d | 51.40 | 43.82 | b | 31.48 | 54.78 | ||||||||||
1982 | 23.92 | e | 32.57 | 43.98 | a | 50.04 | c | 60.08 | a | 70.12 | 77.18 | a | 76.55 | 65.87 | d | 49.43 | b | 38.25 | b | 30.42 | 51.53 | |||||
1983 | 32.91 | c | 38.78 | a | 43.61 | d | 47.11 | b | 56.52 | c | 67.83 | 76.10 | 77.81 | 69.98 | a | 54.82 | 40.52 | b | 27.16 | f | 55.09 | a | ||||
1984 | 19.52 | a | 30.43 | a | 41.30 | a | 46.90 | a | 64.68 | 68.78 | 77.47 | b | 75.31 | 66.91 | c | 47.57 | c | 40.59 | b | 32.03 | a | 50.96 | ||||
1985 | 30.35 | d | 31.23 | d | 43.81 | b | 54.48 | b | 64.27 | a | 73.03 | a | 77.88 | a | 77.78 | a | 62.67 | f | 52.75 | c | 39.15 | d | 32.43 | b | 52.47 | a |
1986 | 34.60 | b | 39.50 | c | 49.74 | 52.73 | 60.95 | a | 74.67 | 75.50 | 75.77 | a | 63.21 | b | 51.29 | b | 40.83 | c | 33.63 | 54.37 | ||||||
1987 | 28.14 | c | 37.41 | 39.73 | a | 54.04 | b | 61.52 | a | 73.15 | 74.94 | 72.02 | a | 67.36 | a | 56.93 | a | 39.64 | a | 28.95 | b | 52.82 | ||||
1988 | 18.20 | c | 30.29 | 41.02 | 52.76 | e | 61.35 | 75.45 | a | 80.03 | 75.79 | 64.20 | 59.33 | a | 41.34 | a | 30.88 | c | 52.55 | |||||||
1989 | 21.95 | b | 27.34 | 48.16 | 57.15 | 63.32 | 69.78 | 79.63 | 73.62 | b | 67.91 | c | 55.34 | 42.13 | 30.32 | 53.05 | ||||||||||
1990 | 29.18 | c | 36.20 | a | 47.06 | 56.32 | 61.31 | 74.82 | 77.42 | a | 75.76 | 69.58 | 53.61 | 41.00 | 22.92 | 53.76 | ||||||||||
1991 | 20.03 | 33.12 | 42.39 | 49.87 | 61.80 | f | 72.25 | 76.84 | 75.02 | 66.58 | 55.26 | 38.30 | c | 26.93 | b | 50.60 | a | |||||||||
1992 | 22.02 | d | 36.70 | b | 47.84 | c | 59.10 | a | 64.81 | 70.52 | a | 74.60 | a | 75.00 | a | 67.53 | a | 58.61 | 36.57 | b | 25.75 | a | 53.25 | |||
1993 | 32.35 | a | 36.23 | 46.44 | 49.91 | b | 62.47 | a | 69.68 | 76.40 | 73.34 | 65.67 | a | 52.69 | 36.24 | a | 29.87 | d | 52.61 | |||||||
1994 | 32.67 | b | 33.29 | d | 47.34 | b | 53.59 | c | 65.05 | b | 77.20 | 80.48 | 79.15 | 68.62 | 52.90 | a | 38.05 | 32.98 | b | 55.11 | ||||||
1995 | 33.24 | 43.89 | a | 45.98 | b | 50.46 | c | 56.76 | 68.08 | 75.52 | b | 78.11 | 68.52 | a | 52.90 | a | 44.60 | 35.90 | 54.50 | |||||||
1996 | 30.41 | b | 40.43 | a | 44.95 | a | 53.29 | b | 64.84 | 74.22 | 79.61 | 77.87 | 65.66 | e | 53.16 | 41.41 | a | 32.61 | d | 54.87 | ||||||
1997 | 31.58 | a | 35.70 | 46.53 | a | 47.08 | d | 63.57 | c | 73.14 | a | 76.71 | 74.47 | 66.57 | 53.27 | 39.95 | 30.08 | a | 53.22 | |||||||
1998 | 35.08 | e | 36.58 | b | 42.71 | c | 48.64 | b | 63.31 | b | 68.34 | a | 79.81 | 77.41 | b | 70.12 | 54.52 | 42.72 | c | 28.50 | c | 53.98 | ||||
1999 | 34.52 | a | 38.42 | c | 50.26 | 48.76 | a | 59.47 | b | 71.30 | 78.18 | 74.13 | a | 64.70 | 56.23 | a | 45.77 | 32.34 | 54.51 | |||||||
2000 | 33.88 | a | 40.72 | 44.71 | 57.93 | 67.14 | b | 73.88 | 80.80 | a | 79.23 | a | 68.33 | 56.27 | 34.02 | 32.23 | 55.76 | |||||||||
2001 | 31.05 | 37.11 | 46.44 | 55.58 | 65.44 | 75.35 | 79.29 | 76.24 | 70.63 | 56.42 | 45.72 | 29.89 | 55.76 | |||||||||||||
2002 | 29.58 | 32.54 | 42.08 | 57.82 | 64.06 | 77.17 | 81.68 | 75.94 | 66.20 | 51.98 | 39.00 | 33.50 | 54.30 | |||||||||||||
2003 | 36.13 | 35.68 | 44.89 | 54.28 | 63.15 | 71.75 | 83.27 | 78.35 | 65.18 | 57.84 | 38.27 | 32.90 | 55.14 | |||||||||||||
2004 | 25.25 | a | 32.17 | 50.92 | 54.40 | 64.77 | 72.77 | 78.35 | 75.03 | 66.35 | 55.05 | 40.28 | 29.53 | 53.74 | ||||||||||||
2005 | 38.40 | 39.00 | 44.11 | 53.37 | 63.72 | a | 69.60 | 81.32 | 75.24 | 68.35 | 56.37 | 43.25 | 31.03 | 55.31 | ||||||||||||
2006 | 33.24 | 36.04 | 43.77 | 56.00 | 66.32 | 76.48 | 80.68 | 75.27 | 63.21 | a | 51.08 | 42.45 | a | 28.89 | 54.45 | |||||||||||
2007 | 26.61 | 38.32 | 47.95 | 54.07 | 64.32 | 75.55 | 82.27 | 78.66 | 68.77 | 53.34 | 44.40 | 27.79 | 55.17 | |||||||||||||
2008 | 24.48 | 32.61 | a | 42.47 | 49.02 | 59.84 | 71.93 | 80.00 | 76.89 | 67.12 | 55.03 | 43.12 | 28.68 | 52.60 | ||||||||||||
2009 | 27.85 | 39.29 | 45.76 | 51.25 | 65.13 | 69.65 | 79.53 | 75.94 | 69.07 | 50.19 | 43.18 | 21.79 | 53.22 | |||||||||||||
2010 | 24.89 | 30.31 | a | 42.85 | 52.58 | f | 59.79 | g | 75.56 | f | 80.21 | j | 75.23 | i | 70.71 | f | 57.41 | i | 40.83 | i | 36.34 | i | 32.69 | i | ||
2011 | 22.98 | i | 29.32 | h | 46.07 | h | 52.20 | g | 56.41 | i | 72.93 | 78.44 | 79.44 | 69.45 | 54.44 | 40.23 | 29.39 | 60.62 | e | |||||||
2012 | 32.27 | 36.60 | 48.95 | 57.37 | 66.26 | 77.58 | 79.52 | 77.63 | 68.55 | 55.23 | 45.47 | 29.53 | 56.25 | |||||||||||||
2013 | 18.03 | 33.16 | 45.11 | 50.25 | 63.03 | 77.26 | a | 80.42 | 75.23 | 68.13 | 51.22 | a | 40.83 | 19.95 | 51.89 | |||||||||||
2014 | 27.91 | d | 36.16 | 45.87 | a | 51.15 | 61.63 | 72.50 | 80.37 | 72.94 | 69.73 | 56.05 | 38.60 | 34.52 | 53.95 | |||||||||||
2015 | 32.77 | 40.64 | 49.56 | 52.70 | 59.23 | 75.85 | 75.37 | 76.53 | 70.35 | 58.95 | 40.20 | 26.90 | 54.92 | |||||||||||||
2016 | 26.85 | 34.33 | 46.76 | 52.15 | 60.74 | 77.85 | 79.24 | 73.74 | b | 67.73 | 58.56 | 45.66 | b | 30.00 | 54.47 | |||||||||||
2017 | 30.05 | 41.64 | 51.15 | 53.05 | 61.24 | 77.29 | a | 80.95 | 76.84 | 68.48 | 52.03 | 46.47 | 32.36 | c | 55.96 | |||||||||||
2018 | 32.73 | 36.41 | a | 45.13 | e | 54.72 | a | 66.15 | 77.30 | 81.98 | b | 77.87 | 71.63 | 52.00 | 36.72 | 30.19 | 55.24 | |||||||||
2019 | 27.35 | 31.89 | 44.08 | 55.50 | 57.24 | 71.37 | 80.44 | 79.40 | 70.88 | 48.11 | 41.78 | a | 31.45 | a | 53.29 | |||||||||||
2020 | 26.82 | 33.12 | 47.05 | a | 52.98 | a | 65.82 | a | 74.08 | 79.45 | 81.27 | 67.40 | 55.34 | 44.10 | 28.16 | 54.63 | ||||||||||
2021 | 29.31 | 34.74 | a | 45.03 | a | 53.75 | 64.23 | 78.07 | 81.89 | 76.71 | 70.57 | 52.47 | 44.08 | 34.74 | b | 55.46 | ||||||||||
2022 | 29.29 | 32.25 | 44.30 | a | 53.57 | 62.31 | 75.22 | 81.02 | 77.87 | 72.18 | 54.23 | 37.37 | 30.24 | 54.15 | ||||||||||||
2023 | 32.27 | 30.32 | 37.95 | 49.90 | 65.45 | 71.67 | 82.08 | 78.45 | 69.87 | 56.27 | 41.81 | a | 33.74 | 54.15 | ||||||||||||
2024 | 32.97 | 39.48 | 44.89 | 54.27 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 39.11 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 28.19 | 35.12 | 44.66 | 52.56 | 62.32 | 72.64 | 78.65 | 75.94 | 67.39 | 54.24 | 41.00 | 29.89 | 53.63 | |||||||||||||
S.D. | 5.47 | 4.27 | 3.33 | 3.12 | 2.76 | 3.05 | 2.10 | 2.13 | 2.29 | 2.90 | 2.98 | 3.81 | 1.43 | |||||||||||||
SKEW | -0.58 | -0.71 | -0.01 | -0.14 | -0.26 | 0.00 | 0.00 | -0.07 | -0.20 | -0.31 | -0.19 | -0.75 | -0.35 | |||||||||||||
MAX | 38.40 | 43.89 | 51.15 | 59.10 | 67.14 | 78.07 | 83.27 | 81.27 | 72.18 | 60.29 | 46.65 | 39.52 | 56.25 | |||||||||||||
MIN | 13.75 | 21.09 | 37.53 | 46.57 | 56.52 | 66.93 | 74.60 | 70.06 | 61.65 | 47.57 | 33.32 | 18.39 | 50.40 | |||||||||||||
YRS | 60 | 60 | 60 | 59 | 58 | 60 | 61 | 60 | 59 | 61 | 60 | 59 | 54 |