YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1972 | ----- | z | ----- | z | ----- | z | 49.70 | 57.63 | 66.08 | 70.81 | 67.22 | a | 60.82 | 52.55 | a | 33.28 | 28.89 | 54.11 | c | |||||||
1973 | 27.18 | 32.14 | 36.98 | 41.22 | l | 54.87 | 64.05 | 69.05 | 68.73 | 59.88 | 52.15 | d | 41.85 | 31.60 | 48.95 | a | ||||||||||
1974 | 27.27 | a | 30.36 | 44.82 | 45.42 | e | 62.62 | f | 68.98 | 69.81 | 65.66 | 58.95 | 52.02 | 38.73 | 27.15 | a | 48.11 | a | ||||||||
1975 | 25.40 | a | 30.91 | 39.00 | 42.53 | 53.98 | 65.03 | 68.31 | 67.63 | 58.28 | 51.21 | 42.45 | h | 32.37 | a | 48.61 | a | |||||||||
1976 | 29.53 | 38.78 | 39.42 | 48.67 | 56.11 | 66.36 | a | 69.19 | 67.23 | 61.67 | a | 47.08 | 37.52 | 28.65 | 49.18 | |||||||||||
1977 | 25.63 | 34.29 | 37.08 | 49.14 | a | 57.29 | 69.30 | 70.95 | 71.08 | 63.58 | 54.63 | 42.20 | 32.08 | a | 50.60 | |||||||||||
1978 | 32.25 | a | 33.98 | 43.19 | 51.57 | 54.89 | 68.28 | 73.53 | 68.11 | 61.80 | 53.97 | 41.47 | 28.57 | a | 50.97 | |||||||||||
1979 | 23.55 | 31.34 | 40.44 | 48.50 | 54.56 | 64.27 | 70.47 | 67.11 | 64.23 | 54.81 | 34.38 | 34.02 | 48.97 | |||||||||||||
1980 | 33.23 | 36.74 | 38.92 | 45.70 | 55.02 | 69.63 | 75.48 | a | 69.37 | 64.17 | a | 50.30 | a | 40.88 | 38.97 | 51.53 | ||||||||||
1981 | 35.47 | 37.71 | 39.55 | 52.78 | 57.10 | 70.36 | a | 71.76 | 68.37 | 63.00 | 51.63 | a | 43.30 | 35.82 | 52.24 | |||||||||||
1982 | 29.77 | c | 33.82 | c | 41.58 | a | 48.64 | b | 55.27 | 66.25 | 71.82 | l | 69.60 | 62.37 | 48.67 | b | 38.62 | b | 29.73 | 47.67 | a | |||||
1983 | 31.42 | a | 34.23 | b | 40.06 | 43.45 | 55.34 | b | 64.66 | a | 72.57 | d | 71.85 | 67.64 | a | 54.26 | 41.81 | a | 32.66 | 50.83 | ||||||
1984 | 31.03 | a | 37.00 | a | 42.23 | 48.27 | b | 63.75 | c | 68.08 | e | 74.35 | 70.93 | d | 66.47 | n | 48.15 | 42.53 | 34.37 | 50.97 | a | |||||
1985 | 30.57 | a | 34.55 | 43.66 | 52.55 | 58.71 | 68.79 | a | 71.65 | a | 71.90 | 61.28 | 53.11 | 42.62 | 35.24 | 52.05 | ||||||||||
1986 | 39.35 | 39.05 | 46.22 | b | 52.18 | 58.13 | 67.60 | 70.44 | 71.32 | 60.50 | 50.48 | 38.48 | a | 32.47 | 52.19 | |||||||||||
1987 | 30.48 | 35.82 | 40.56 | 51.05 | a | 56.81 | 68.48 | 72.10 | 69.05 | 62.67 | 55.82 | 40.60 | 31.40 | 51.24 | ||||||||||||
1988 | 28.02 | 39.03 | 41.59 | h | 50.05 | 58.10 | b | 67.79 | a | 71.41 | o | 67.97 | l | 59.39 | b | 54.04 | d | 39.41 | b | 28.90 | b | 47.19 | c | |||
1989 | 29.16 | c | 34.37 | a | 44.59 | b | 52.84 | a | 59.98 | a | 66.73 | d | 70.60 | b | 66.25 | g | 67.72 | a | 54.00 | 41.50 | b | 31.07 | a | 50.23 | a | |
1990 | 30.47 | b | 36.23 | 45.25 | a | 51.07 | a | 55.32 | a | 71.05 | a | 68.37 | 66.48 | b | 62.27 | s | 51.05 | j | 40.63 | 26.68 | 49.15 | b | ||||
1991 | 28.52 | a | 37.87 | b | 39.02 | a | 46.88 | a | 57.35 | 65.75 | 67.83 | a | 67.37 | 60.12 | a | 51.79 | 36.82 | 31.19 | 49.21 | |||||||
1992 | 26.79 | b | 36.36 | a | 41.59 | b | 51.36 | a | 56.74 | 63.80 | 68.40 | 67.05 | b | 61.73 | b | 53.33 | a | 33.00 | a | 25.29 | 48.79 | |||||
1993 | 32.29 | 35.55 | g | 41.61 | c | 48.62 | b | 57.40 | b | 66.03 | a | 70.53 | 66.93 | a | 60.59 | a | 49.19 | b | 35.40 | a | 30.50 | a | 50.83 | a | ||
1994 | 30.87 | a | 32.25 | 42.33 | a | 48.50 | 57.86 | b | 70.10 | 70.65 | 71.29 | b | 62.79 | b | 49.73 | 37.57 | c | 34.80 | a | 50.73 | ||||||
1995 | 31.92 | a | 41.13 | b | 42.13 | 45.81 | a | 55.17 | a | 64.31 | c | 70.22 | a | 71.42 | 61.81 | a | 51.55 | 43.68 | 33.77 | a | 51.08 | |||||
1996 | 30.70 | a | 38.95 | a | 39.57 | c | 50.22 | 63.47 | a | 69.15 | 71.84 | 68.12 | a | 58.79 | a | 50.00 | c | 40.42 | 32.50 | a | 51.14 | |||||
1997 | 28.02 | 34.37 | a | 43.98 | 45.89 | b | 57.58 | a | 64.37 | c | 66.70 | d | 68.54 | d | 64.79 | b | 51.07 | a | 37.11 | b | 26.46 | c | 49.07 | |||
1998 | 32.98 | 33.46 | 39.81 | 44.46 | b | 57.00 | 64.95 | a | 69.48 | a | 69.46 | c | 67.13 | 51.48 | 42.12 | a | 33.60 | a | 50.50 | |||||||
1999 | 35.06 | 38.41 | 43.33 | a | 46.69 | a | 55.19 | 64.10 | 69.02 | a | 66.89 | c | 60.41 | b | 53.00 | 43.97 | a | ----- | z | 52.37 | a | |||||
2000 | 34.08 | 40.04 | a | 42.11 | c | 52.19 | f | 63.69 | g | 67.17 | 72.31 | 71.10 | 65.82 | 50.60 | a | 33.00 | 30.84 | 50.70 | b | |||||||
2001 | 27.65 | a | 35.25 | 41.63 | 51.00 | a | 59.74 | b | 64.94 | d | 70.04 | e | 67.15 | a | 63.30 | 53.15 | 41.27 | b | 30.00 | a | 50.43 | |||||
2002 | 31.07 | a | 31.91 | a | 39.65 | 54.41 | b | 58.40 | j | 70.62 | a | 70.95 | a | 70.35 | 62.71 | a | 49.92 | 37.93 | 30.54 | c | 50.00 | a | ||||
2003 | 37.34 | 34.21 | 40.84 | 48.10 | a | 58.86 | f | 66.05 | 75.77 | 71.16 | b | 62.55 | 55.11 | 39.43 | a | 31.17 | a | 51.07 | a | |||||||
2004 | 32.55 | 30.36 | 46.11 | 47.00 | 59.67 | a | 67.48 | 70.32 | a | 66.48 | 61.81 | a | 49.85 | a | 36.71 | a | 30.81 | 49.93 | ||||||||
2005 | 36.39 | 35.91 | a | 37.52 | b | 48.30 | 57.14 | c | 66.30 | 72.45 | b | 68.27 | 64.45 | 51.03 | 40.90 | a | 32.26 | 50.91 | ||||||||
2006 | 32.67 | a | 34.77 | 41.31 | 52.02 | 61.44 | 69.70 | 71.06 | 67.03 | 57.10 | 50.18 | 40.08 | 29.50 | 50.57 | ||||||||||||
2007 | 25.94 | 33.30 | 43.18 | a | 48.03 | a | 56.65 | 66.93 | 70.89 | 71.55 | 64.87 | 53.43 | b | 41.40 | 29.56 | 50.48 | ||||||||||
2008 | 25.98 | 34.88 | 39.71 | 46.33 | 56.06 | 67.85 | 69.65 | 69.39 | 62.15 | 52.14 | c | 40.42 | 31.08 | 49.64 | ||||||||||||
2009 | 33.10 | 37.34 | 42.13 | 47.13 | 60.08 | ----- | z | 71.32 | 68.82 | 59.93 | 48.18 | 40.62 | 25.52 | 48.56 | a | |||||||||||
2010 | 28.08 | 30.64 | 38.72 | b | 48.02 | 56.15 | 68.50 | 69.97 | 68.23 | 64.73 | 52.47 | 36.55 | 34.08 | 49.68 | ||||||||||||
2011 | 28.39 | 28.86 | 44.98 | a | 50.09 | a | 54.11 | 69.08 | 73.63 | 72.23 | 61.37 | 50.40 | 38.75 | 26.16 | 49.84 | |||||||||||
2012 | 33.24 | 33.76 | b | 43.16 | 52.18 | 59.45 | 71.28 | 70.95 | 70.31 | 62.52 | a | 51.68 | 40.33 | 28.65 | 51.46 | |||||||||||
2013 | 25.50 | 31.48 | 41.61 | 48.27 | 56.77 | 70.20 | 70.02 | 69.19 | 61.97 | a | 47.90 | 37.25 | 28.85 | 49.08 | ||||||||||||
2014 | 31.34 | 37.00 | 41.05 | 46.53 | 54.87 | a | 67.92 | 70.10 | 66.43 | c | 64.00 | 53.32 | 38.23 | b | 31.72 | a | 50.21 | |||||||||
2015 | 31.11 | 35.43 | a | 44.20 | a | 48.57 | 53.55 | a | 68.25 | 68.21 | 69.34 | 64.83 | 53.03 | 38.30 | 30.02 | 50.40 | ||||||||||
2016 | 29.58 | 37.12 | 43.87 | 47.60 | 54.81 | 69.98 | 73.79 | 66.02 | 62.18 | 54.44 | 41.45 | 32.68 | 51.13 | |||||||||||||
2017 | 32.81 | 39.61 | 46.82 | 48.40 | 55.98 | a | 69.05 | 72.05 | 68.39 | 63.03 | 51.08 | 45.50 | a | 34.25 | a | 52.25 | ||||||||||
2018 | 32.00 | 36.64 | 42.08 | 51.88 | 61.40 | 71.23 | 71.65 | 68.82 | 63.37 | 49.73 | 35.92 | 29.93 | c | 51.22 | ||||||||||||
2019 | 29.45 | b | 32.66 | 41.44 | 49.33 | 52.66 | 64.92 | 71.23 | 70.69 | 64.93 | 47.37 | 36.82 | 31.47 | 49.41 | ||||||||||||
2020 | 30.74 | 33.69 | 43.40 | a | 49.83 | a | 59.97 | 67.43 | 72.00 | 71.95 | 61.38 | 52.27 | a | 42.23 | 28.71 | 51.13 | ||||||||||
2021 | 30.39 | 33.89 | a | 40.52 | 48.90 | 58.16 | b | 68.70 | 69.69 | 69.07 | a | 64.50 | 50.53 | 42.55 | a | 34.58 | 50.96 | |||||||||
2022 | 30.95 | b | 29.50 | 40.35 | a | 50.33 | a | 59.61 | 67.30 | 71.40 | a | 67.79 | 64.33 | c | 49.21 | 34.19 | d | 31.27 | 49.69 | |||||||
2023 | 30.40 | a | 32.14 | 37.89 | 46.98 | a | 57.71 | 63.59 | a | 75.93 | a | 71.13 | a | 63.40 | 52.82 | c | 39.43 | g | 32.55 | 51.32 | a | |||||
2024 | 29.97 | 36.55 | a | 40.29 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.60 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 30.53 | 34.90 | 41.60 | 48.84 | 57.22 | 67.43 | 70.99 | 68.99 | 62.55 | 51.57 | 39.39 | 31.08 | 50.52 | |||||||||||||
S.D. | 3.17 | 2.94 | 2.39 | 2.55 | 2.45 | 2.19 | 1.99 | 1.84 | 2.31 | 2.12 | 3.00 | 2.79 | 0.98 | |||||||||||||
SKEW | 0.28 | -0.00 | 0.16 | -0.14 | 0.67 | -0.07 | 0.55 | 0.13 | 0.06 | -0.15 | -0.41 | 0.10 | -0.04 | |||||||||||||
MAX | 39.35 | 41.13 | 46.82 | 54.41 | 63.75 | 71.28 | 75.93 | 72.23 | 67.72 | 55.82 | 45.50 | 38.97 | 52.25 | |||||||||||||
MIN | 23.55 | 28.86 | 36.98 | 42.53 | 52.66 | 63.59 | 66.70 | 65.66 | 57.10 | 47.08 | 33.00 | 25.29 | 48.79 | |||||||||||||
YRS | 52 | 51 | 51 | 50 | 48 | 51 | 50 | 50 | 50 | 51 | 50 | 51 | 36 |