YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.65 | 32.65 | k | |
1970 | 29.37 | 34.29 | 34.32 | 37.02 | b | 53.17 | b | 60.20 | b | 66.39 | 64.53 | 54.88 | 42.97 | a | 37.22 | a | 29.67 | a | 45.34 | |||||||
1971 | 29.31 | 30.86 | 37.38 | b | 42.72 | a | 47.75 | a | 61.33 | 68.19 | 63.92 | a | 56.27 | b | 41.82 | a | 33.77 | 25.50 | 44.90 | |||||||
1972 | 31.24 | 34.74 | 43.58 | 44.98 | 50.63 | 59.20 | 67.02 | a | 62.76 | 56.45 | 45.92 | 33.43 | 26.66 | 46.38 | ||||||||||||
1973 | 25.10 | 30.75 | 30.71 | 39.00 | a | 51.65 | 59.88 | 64.77 | a | 63.84 | 56.50 | 47.08 | 37.06 | c | 33.00 | 44.94 | ||||||||||
1974 | 27.82 | a | 31.26 | a | 40.38 | a | 42.30 | 54.62 | a | 66.45 | 65.26 | 63.23 | 56.52 | 46.98 | 35.97 | 26.18 | 46.41 | |||||||||
1975 | 28.69 | 30.70 | 35.45 | a | 39.28 | a | 47.16 | b | 58.54 | b | 65.95 | 63.03 | a | 56.37 | 46.23 | 34.83 | 28.34 | 44.55 | ||||||||
1976 | 29.55 | 35.05 | 33.92 | 41.82 | 51.35 | 59.32 | 64.63 | 61.63 | 54.77 | 43.75 | a | 35.08 | 27.45 | 44.86 | ||||||||||||
1977 | 24.68 | 32.46 | 33.85 | a | 43.47 | 47.03 | 60.02 | 65.29 | 63.58 | 58.32 | 47.82 | 39.13 | 35.53 | 45.93 | ||||||||||||
1978 | ----- | z | 29.61 | 39.10 | 42.82 | 50.13 | a | 61.32 | 66.66 | 63.81 | 56.07 | a | 50.02 | 35.92 | 26.03 | 47.41 | a | |||||||||
1979 | 23.42 | 28.88 | 35.56 | 43.33 | a | 50.81 | 60.43 | 65.34 | 62.85 | 59.55 | a | 50.15 | a | 32.78 | 29.66 | 45.23 | ||||||||||
1980 | 31.05 | 34.12 | 34.34 | 42.73 | 47.65 | 63.10 | a | 66.76 | 64.97 | 58.15 | 45.60 | 37.20 | 36.29 | 46.83 | ||||||||||||
1981 | 31.73 | 34.00 | 35.52 | a | 48.26 | a | 51.71 | 64.17 | 64.58 | 62.32 | a | 56.28 | a | 44.61 | 37.98 | 34.40 | 47.13 | |||||||||
1982 | 29.80 | d | 31.42 | c | 36.13 | e | 43.93 | b | 51.47 | b | 58.66 | a | 64.85 | 64.52 | a | 58.55 | a | 43.69 | 35.14 | b | 29.05 | a | 45.60 | |||
1983 | 30.21 | b | 31.96 | a | 37.77 | c | 38.41 | c | 52.00 | 58.48 | 67.05 | a | 63.35 | 61.27 | b | 46.92 | 36.78 | c | 35.65 | 46.65 | ||||||
1984 | 27.58 | a | 31.50 | d | 38.35 | a | 42.52 | d | 58.77 | a | 61.05 | a | 65.11 | 63.50 | a | 59.90 | a | 42.02 | b | 35.33 | c | 27.59 | b | 46.10 | ||
1985 | 27.23 | e | 28.07 | a | 37.00 | d | 48.91 | c | 53.53 | b | 63.26 | a | 67.10 | a | 64.45 | a | 54.89 | b | 47.22 | a | 35.91 | b | 30.82 | 46.53 | ||
1986 | 35.35 | 35.69 | a | 40.53 | 46.45 | b | 54.43 | c | 62.63 | 64.74 | 64.63 | 56.32 | 43.44 | 35.26 | c | 27.74 | b | 47.27 | ||||||||
1987 | 26.68 | f | 28.04 | c | 32.32 | 46.43 | b | 50.18 | 59.83 | 63.56 | 64.05 | t | 54.83 | d | 48.76 | 32.83 | a | 24.88 | c | 44.17 | b | |||||
1988 | 24.95 | b | 30.79 | 35.12 | c | 42.54 | b | 49.97 | 62.05 | b | 65.35 | 62.46 | c | 54.05 | 49.92 | 35.56 | c | 25.22 | b | 44.83 | ||||||
1989 | 20.55 | 28.81 | b | 42.88 | a | 49.73 | 54.69 | 61.23 | 67.13 | 62.42 | a | 56.83 | 44.67 | a | 35.05 | a | 27.00 | 45.92 | ||||||||
1990 | 25.53 | a | 28.32 | 41.94 | o | 46.59 | a | 52.62 | a | 64.65 | 66.45 | 63.52 | 58.85 | 45.68 | a | 34.83 | a | 20.50 | c | 46.14 | a | |||||
1991 | 23.52 | a | 33.27 | 31.63 | 42.38 | 50.02 | 57.72 | a | 65.39 | 65.29 | 58.50 | 50.33 | b | 34.45 | a | 24.42 | 44.74 | |||||||||
1992 | 20.13 | 30.21 | 36.50 | a | 46.58 | 51.79 | 60.89 | b | 65.21 | 63.07 | b | 58.35 | 49.19 | 31.08 | 22.78 | a | 44.65 | |||||||||
1993 | 29.60 | b | 30.40 | b | 39.45 | 47.21 | a | 54.91 | d | 60.95 | a | 65.98 | 64.34 | c | 57.56 | e | 44.22 | h | 31.84 | e | 28.00 | b | 46.39 | a | ||
1994 | 30.95 | a | 27.19 | a | 39.78 | a | 45.24 | a | 53.13 | 67.02 | b | 67.68 | 65.87 | a | 59.56 | c | 44.89 | c | 32.98 | 29.98 | a | 47.02 | ||||
1995 | 29.58 | a | 37.07 | a | 38.42 | a | 43.80 | 49.57 | a | 58.48 | a | 67.62 | a | 67.58 | 59.53 | a | 47.00 | 39.12 | 29.12 | b | 47.24 | |||||
1996 | 32.25 | a | 37.19 | c | 35.95 | b | 44.57 | 58.38 | b | 64.13 | 68.31 | 65.26 | 54.17 | a | 45.80 | c | 35.72 | 32.30 | a | 47.84 | ||||||
1997 | 27.11 | 29.23 | 38.77 | 41.91 | a | 54.35 | 59.05 | a | 64.08 | 62.87 | a | 59.40 | 44.03 | a | 35.73 | b | 25.43 | b | 45.17 | |||||||
1998 | 30.61 | 28.86 | 34.31 | 38.22 | 49.18 | a | 58.13 | 67.21 | 64.50 | 57.45 | b | 42.88 | a | 34.78 | a | 28.72 | b | 44.57 | ||||||||
1999 | 33.90 | 34.52 | a | 38.68 | a | 38.72 | 50.24 | 60.02 | 64.90 | 62.15 | 55.38 | 46.66 | 38.90 | 27.62 | a | 45.97 | ||||||||||
2000 | 32.13 | 33.54 | a | 34.98 | 46.43 | 56.81 | 64.13 | 66.95 | 64.45 | a | 59.66 | b | 45.48 | 28.69 | a | 31.74 | 47.08 | |||||||||
2001 | 24.69 | 29.85 | a | 37.18 | 44.05 | a | 55.44 | 62.35 | 65.40 | 64.16 | 58.88 | 49.42 | 36.25 | 25.34 | f | 47.97 | a | |||||||||
2002 | 27.95 | 30.13 | b | 33.45 | b | 48.80 | 52.32 | 64.17 | a | 69.45 | a | 66.52 | 57.67 | 43.74 | 35.70 | b | 26.61 | d | 46.38 | |||||||
2003 | 32.60 | e | 31.25 | d | 35.63 | a | 41.84 | b | 53.75 | a | 61.95 | a | 70.37 | 64.47 | 58.86 | a | 50.48 | 34.33 | f | 30.87 | d | 48.37 | a | |||
2004 | 26.96 | h | 27.65 | f | 44.37 | 45.41 | a | 55.74 | 62.45 | 65.03 | 61.87 | 55.28 | a | 43.65 | 33.29 | a | 28.82 | a | 49.59 | b | ||||||
2005 | 31.83 | b | 31.98 | 35.03 | b | 42.67 | a | 52.97 | 58.93 | 67.07 | a | 61.90 | 57.77 | 45.97 | b | 37.34 | a | 29.47 | b | 46.08 | ||||||
2006 | 28.40 | 30.30 | a | 33.42 | a | 44.98 | 54.82 | 64.55 | 68.05 | 61.93 | a | 52.29 | a | 43.35 | d | 37.34 | a | 27.43 | a | 45.57 | ||||||
2007 | 19.93 | b | 32.32 | 40.19 | 45.96 | b | 53.05 | 62.27 | 68.50 | a | 65.23 | 57.95 | 46.05 | a | 38.95 | b | 24.83 | b | 46.27 | |||||||
2008 | 23.72 | a | 29.98 | 37.35 | 42.89 | b | 48.63 | a | 62.32 | 65.60 | a | 65.29 | 56.34 | a | 45.42 | 38.43 | a | 28.67 | a | 45.39 | ||||||
2009 | 30.05 | 30.64 | 39.45 | a | 43.10 | 55.95 | b | 58.53 | 67.58 | 64.03 | 58.03 | 44.13 | a | 36.75 | 21.32 | 45.80 | ||||||||||
2010 | 26.05 | 26.79 | 35.11 | 41.45 | 49.61 | 61.61 | b | 67.26 | 63.37 | a | 58.33 | 47.52 | 34.72 | 36.82 | 45.72 | |||||||||||
2011 | 26.21 | 26.77 | 39.71 | 45.62 | 48.60 | 61.33 | a | 66.02 | 65.55 | 57.80 | 46.16 | 36.02 | 24.72 | a | 45.37 | |||||||||||
2012 | 32.45 | 30.98 | 37.29 | 46.72 | 54.26 | 64.60 | 66.65 | a | 64.55 | 56.97 | 47.15 | 37.55 | 27.28 | a | 47.20 | |||||||||||
2013 | 21.03 | 27.22 | a | 39.00 | 44.55 | 52.58 | 65.27 | 67.58 | 62.35 | 56.35 | 39.89 | q | 33.84 | a | 24.27 | a | 44.91 | a | ||||||||
2014 | 32.60 | a | 35.89 | 38.73 | 44.02 | c | 50.92 | 63.07 | 66.89 | 61.35 | 58.58 | 48.23 | 38.65 | 31.07 | b | 47.50 | ||||||||||
2015 | 30.35 | 37.57 | 39.29 | 43.97 | 48.10 | 62.70 | 63.90 | 64.26 | 58.63 | 48.58 | a | 34.17 | 28.17 | a | 46.64 | |||||||||||
2016 | 27.82 | a | 34.59 | 40.98 | 43.35 | 47.87 | 65.25 | 67.79 | 61.19 | 56.50 | 49.52 | a | 38.73 | 30.98 | 47.05 | |||||||||||
2017 | 29.07 | a | 35.57 | 41.44 | 44.07 | 50.61 | 65.37 | 65.84 | b | 60.77 | a | 58.93 | w | 55.81 | w | ----- | z | 33.02 | a | 47.31 | c | |||||
2018 | 34.29 | e | 32.79 | 36.57 | b | 49.66 | b | 53.55 | a | 65.63 | d | 68.15 | 65.02 | a | 58.69 | a | 45.13 | 34.22 | a | 31.23 | i | 49.43 | a | |||
2019 | ----- | z | 27.88 | d | 37.14 | f | 46.24 | e | 45.61 | d | 59.93 | c | 66.88 | c | 66.18 | 60.12 | a | 42.54 | c | 36.43 | c | 27.48 | f | 50.20 | c | |
2020 | 30.27 | c | 33.60 | c | 39.13 | d | 41.44 | v | ----- | z | 64.98 | a | 69.71 | c | 68.79 | 57.32 | 50.54 | d | 38.82 | 27.02 | 48.02 | b | ||||
2021 | 26.37 | 32.96 | 34.85 | 46.47 | 53.06 | 63.21 | r | 68.68 | 65.48 | 59.12 | 43.87 | 39.59 | a | 31.15 | 45.60 | a | ||||||||||
2022 | 28.27 | 27.15 | a | 36.76 | 46.75 | l | ----- | z | 63.26 | g | 67.56 | 63.79 | 61.10 | 45.69 | 33.16 | a | 30.38 | a | 43.76 | c | ||||||
2023 | 26.28 | a | 25.67 | a | 34.27 | c | 43.48 | 52.93 | d | 58.33 | 69.98 | b | 65.98 | 58.41 | a | 48.00 | a | 35.67 | f | 31.97 | b | 46.85 | a | |||
2024 | 28.93 | a | 32.71 | a | 36.97 | a | 40.81 | q | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.87 | i |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 28.28 | 31.43 | 37.15 | 43.99 | 51.92 | 61.77 | 66.58 | 63.94 | 57.47 | 46.21 | 35.69 | 28.75 | 46.02 | |||||||||||||
S.D. | 3.67 | 2.95 | 2.96 | 2.91 | 2.93 | 2.48 | 1.58 | 1.61 | 1.87 | 2.42 | 2.29 | 3.65 | 0.93 | |||||||||||||
SKEW | -0.49 | 0.16 | 0.22 | -0.24 | 0.10 | 0.22 | 0.32 | 0.43 | -0.36 | 0.16 | -0.47 | 0.18 | 0.07 | |||||||||||||
MAX | 35.35 | 37.57 | 44.37 | 49.73 | 58.77 | 67.02 | 70.37 | 68.79 | 61.27 | 50.54 | 39.59 | 36.82 | 47.84 | |||||||||||||
MIN | 19.93 | 25.67 | 30.71 | 37.02 | 45.61 | 57.72 | 63.56 | 60.77 | 52.29 | 41.82 | 28.69 | 20.50 | 44.55 | |||||||||||||
YRS | 51 | 54 | 53 | 52 | 52 | 52 | 54 | 53 | 53 | 51 | 51 | 52 | 39 |