YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.65 | k | 45.37 | 40.40 | a | 34.63 | 30.30 | a | 37.68 | h | ||
1972 | 27.48 | 28.82 | a | 37.35 | 36.83 | 47.94 | 55.00 | a | 60.45 | 59.52 | 47.03 | 37.74 | 35.30 | 19.70 | a | 41.10 | ||||||||||
1973 | 21.55 | 28.89 | 36.48 | 39.53 | 46.71 | 54.03 | 59.29 | 57.94 | 50.57 | 38.23 | 35.72 | a | 33.94 | 41.91 | ||||||||||||
1974 | 23.16 | 32.57 | 33.55 | 41.66 | a | 45.97 | 55.27 | 57.81 | 57.87 | 47.60 | 36.71 | 37.27 | 32.00 | 41.79 | ||||||||||||
1975 | 29.29 | 27.36 | 31.48 | 35.87 | 46.93 | a | 52.70 | 61.43 | a | 55.90 | 47.50 | 41.52 | 31.13 | 31.16 | 41.02 | |||||||||||
1976 | 29.94 | 29.62 | 31.19 | 38.50 | 45.42 | 49.70 | 57.26 | l | 54.94 | 48.97 | 33.48 | 29.52 | a | 22.12 | g | 39.13 | b | |||||||||
1977 | 20.61 | 31.61 | 36.13 | 40.90 | 45.48 | 56.80 | 57.13 | 60.61 | 47.77 | 38.52 | 31.37 | 32.00 | 41.58 | |||||||||||||
1978 | 28.19 | 32.89 | 36.67 | a | 41.53 | 46.26 | 53.43 | 58.35 | 57.39 | 49.67 | 35.65 | 24.37 | 24.80 | a | 40.77 | |||||||||||
1979 | 10.77 | 28.11 | 33.37 | a | 42.23 | 50.37 | a | 54.37 | 61.74 | 61.33 | a | 53.83 | 44.39 | 33.83 | 33.70 | a | 42.34 | |||||||||
1980 | 20.62 | b | 30.93 | 36.07 | a | 44.17 | a | 52.33 | a | 55.31 | a | 60.42 | 56.16 | 53.20 | 38.87 | 37.79 | a | 32.23 | 43.18 | |||||||
1981 | 33.83 | b | 31.29 | 35.94 | 41.60 | 47.06 | 54.13 | 55.84 | 55.35 | 46.55 | a | 38.10 | 34.40 | 31.42 | 42.13 | |||||||||||
1982 | 27.53 | a | 27.23 | b | 32.52 | 34.47 | 45.23 | 54.00 | 55.42 | 59.29 | 49.10 | 37.03 | 29.13 | 26.29 | 39.77 | |||||||||||
1983 | 30.58 | 34.21 | 40.16 | 37.77 | 47.60 | a | 51.14 | a | 54.67 | a | 57.42 | 40.66 | a | 34.23 | 33.86 | a | 13.97 | 39.69 | ||||||||
1984 | 26.43 | a | 32.59 | 38.06 | 42.62 | a | 45.77 | a | 53.21 | a | 56.16 | 58.19 | 47.97 | 37.30 | a | 34.53 | 21.48 | b | 41.19 | |||||||
1985 | 25.79 | b | 19.63 | a | 29.16 | 40.67 | 47.23 | 54.80 | 61.10 | 56.00 | 48.53 | 39.26 | 22.45 | a | 19.73 | a | 38.70 | |||||||||
1986 | 29.03 | 32.22 | a | 38.40 | f | 38.80 | 45.18 | c | 56.83 | 56.23 | 58.52 | 48.03 | 38.71 | 35.61 | b | 29.93 | a | 42.64 | a | |||||||
1987 | 25.24 | b | 31.93 | a | 36.93 | a | 41.40 | 49.23 | 52.93 | a | 58.65 | 54.39 | 50.07 | 34.32 | 32.62 | d | 28.35 | 41.34 | ||||||||
1988 | 26.81 | 28.21 | a | 32.07 | a | 41.00 | 45.78 | d | 52.53 | 58.13 | a | 56.58 | 47.43 | 42.68 | 35.20 | 26.76 | b | 41.10 | ||||||||
1989 | 30.47 | a | 16.92 | c | 33.90 | a | 42.23 | 45.13 | 55.17 | a | 58.03 | 58.32 | 45.60 | 39.33 | a | 37.57 | 30.43 | a | 41.09 | |||||||
1990 | 32.00 | b | ----- | z | 33.03 | 41.25 | b | 45.00 | 53.03 | 60.16 | 60.61 | 52.31 | a | 39.30 | a | 37.70 | 18.96 | h | 45.44 | b | ||||||
1991 | 21.69 | b | 33.52 | a | 32.77 | 39.36 | b | 46.29 | 50.87 | 58.03 | 59.94 | 48.30 | 37.82 | c | 36.90 | a | 33.50 | c | 41.58 | |||||||
1992 | 32.00 | a | 35.17 | 35.40 | a | 43.50 | 47.13 | a | 58.11 | b | 59.77 | a | 56.77 | 47.38 | a | 40.33 | a | 35.60 | 25.90 | 43.09 | ||||||
1993 | 17.77 | 24.50 | 32.45 | 41.40 | 50.71 | 53.03 | 55.00 | 55.29 | 47.13 | 40.06 | 23.50 | 31.42 | 39.36 | |||||||||||||
1994 | 31.83 | b | 27.73 | b | 32.97 | 44.47 | 50.03 | 52.80 | 61.16 | 57.93 | a | 50.83 | a | 39.93 | b | 32.62 | a | 27.10 | a | 42.45 | ||||||
1995 | 26.35 | 30.31 | b | 31.00 | 36.96 | c | ----- | z | 53.70 | 58.12 | e | 52.86 | c | 49.80 | 38.83 | a | 37.24 | a | 31.00 | b | 40.56 | a | ||||
1996 | 25.58 | g | 18.35 | l | ----- | z | 40.14 | b | 44.62 | b | ----- | z | 57.08 | e | 55.77 | a | 47.30 | 38.59 | b | 31.83 | 27.27 | e | 42.82 | d | ||
1997 | 25.43 | a | 30.36 | 35.06 | 38.38 | a | 47.45 | b | 52.70 | ----- | z | 59.65 | 50.93 | 38.53 | a | 34.45 | a | 29.87 | a | 40.26 | a | |||||
1998 | 27.68 | 32.36 | 35.65 | 38.37 | 48.03 | 55.07 | 63.84 | 58.71 | 53.14 | b | 37.52 | 37.97 | a | 27.13 | 42.95 | |||||||||||
1999 | 31.13 | a | 31.82 | 33.00 | 34.70 | 44.23 | 53.33 | 55.42 | 59.81 | 44.10 | 37.23 | 36.66 | a | 33.40 | a | 41.24 | ||||||||||
2000 | 29.67 | a | 30.48 | 32.83 | a | 39.77 | 48.00 | a | 53.03 | 58.60 | a | 57.23 | 49.13 | 39.48 | 28.66 | a | 28.63 | a | 41.29 | |||||||
2001 | 30.10 | 27.50 | b | 33.30 | a | 39.72 | a | 45.07 | b | 51.54 | b | 60.20 | a | 59.72 | b | 50.45 | a | 39.57 | a | 34.31 | a | 31.47 | a | 41.91 | ||
2002 | 30.29 | 25.89 | 31.69 | b | 38.40 | 44.28 | b | 53.07 | b | 60.52 | 55.50 | c | 48.00 | 35.52 | b | 30.34 | a | 32.61 | 40.51 | |||||||
2003 | 34.84 | 29.00 | a | 37.10 | b | 39.31 | a | 44.79 | c | 54.30 | 61.00 | a | 58.73 | a | 50.72 | a | 43.27 | a | 27.19 | c | 31.03 | 42.61 | ||||
2004 | 23.90 | a | 29.24 | 35.48 | b | 38.23 | 48.21 | b | 54.20 | 60.87 | 61.26 | 49.69 | a | 41.41 | b | 30.10 | 30.03 | a | 41.89 | |||||||
2005 | 27.52 | 22.11 | 34.10 | 40.57 | 49.71 | 52.17 | 58.43 | a | 56.63 | a | 47.33 | 42.32 | 33.21 | a | 24.71 | 40.73 | ||||||||||
2006 | 32.60 | a | 24.68 | 32.43 | a | ----- | z | 44.79 | c | 56.10 | 61.29 | 55.60 | a | 46.89 | b | 38.67 | a | 33.73 | 26.61 | 41.22 | a | |||||
2007 | 23.97 | 30.42 | b | 33.28 | b | 37.50 | 45.80 | a | 52.83 | 62.27 | a | 54.55 | b | 48.85 | c | 38.10 | b | 29.17 | a | 29.38 | e | 40.51 | ||||
2008 | 23.00 | b | 31.22 | b | 30.72 | b | 33.92 | d | 46.79 | c | 51.00 | b | 59.17 | b | 55.50 | g | 44.08 | e | 38.20 | f | 34.67 | c | 19.59 | b | 37.42 | b |
2009 | 28.39 | c | 26.68 | 31.11 | d | 36.07 | a | 44.82 | c | 56.07 | 57.67 | d | 58.89 | c | 47.48 | a | 40.33 | d | 29.88 | d | 20.76 | b | 39.85 | |||
2010 | 31.89 | d | 31.50 | d | 30.05 | i | 39.48 | g | 45.11 | c | 52.21 | a | 56.27 | e | 56.72 | b | 50.93 | b | 40.00 | b | 31.14 | a | 29.11 | c | 42.49 | b |
2011 | 27.86 | b | 25.74 | e | 31.79 | b | 36.24 | e | 43.23 | a | 52.17 | a | 53.73 | e | 58.52 | 49.19 | c | 42.50 | a | 28.79 | a | 23.86 | c | 39.47 | ||
2012 | 22.83 | a | 28.86 | a | 32.55 | b | 38.74 | c | 44.38 | b | 51.04 | b | 58.35 | 55.87 | 46.00 | 37.23 | 35.80 | 31.19 | 40.24 | |||||||
2013 | 26.32 | 25.93 | ----- | z | 38.40 | 45.97 | 54.20 | 59.74 | 59.29 | 53.13 | 35.06 | 29.43 | 19.06 | 40.60 | a | |||||||||||
2014 | 28.23 | 27.18 | 31.94 | 38.97 | 46.84 | 53.30 | 61.61 | 60.16 | 49.53 | 44.42 | 28.97 | 29.90 | 41.75 | |||||||||||||
2015 | 30.19 | 32.21 | 33.16 | 35.33 | 49.42 | 59.20 | 61.65 | 57.55 | 46.80 | 42.29 | 32.27 | 30.84 | 42.58 | |||||||||||||
2016 | 30.29 | 30.07 | 34.39 | 41.90 | 48.94 | 54.27 | 59.06 | 55.90 | 46.63 | 42.71 | 36.53 | 20.55 | 41.77 | |||||||||||||
2017 | 15.77 | 22.79 | 35.65 | 38.00 | 44.65 | 52.90 | 59.68 | 57.39 | 48.80 | 36.29 | 32.21 | a | 27.77 | 39.32 | ||||||||||||
2018 | 31.81 | 28.71 | 29.48 | 38.33 | 51.52 | 53.23 | 57.77 | 57.55 | 46.53 | 38.42 | 32.37 | 31.54 | c | 41.44 | ||||||||||||
2019 | 31.13 | 22.39 | 25.42 | 43.03 | 47.97 | 55.47 | 58.71 | 59.19 | 52.73 | 34.68 | 28.27 | 29.35 | 40.70 | |||||||||||||
2020 | 30.77 | 28.31 | 32.13 | 39.33 | 48.06 | 54.77 | 59.77 | a | 60.84 | 51.20 | 41.42 | 32.93 | 30.74 | 42.52 | ||||||||||||
2021 | 32.19 | 29.39 | 32.61 | 37.93 | 47.90 | 59.77 | 64.74 | 59.06 | 50.86 | a | 41.87 | 37.03 | 30.16 | 43.63 | ||||||||||||
2022 | 27.52 | 26.86 | 37.61 | 36.67 | 45.52 | 54.53 | 62.27 | a | 62.61 | 53.00 | 45.32 | 29.70 | 23.77 | 42.11 | ||||||||||||
2023 | 27.65 | 25.96 | 28.84 | 37.47 | 51.81 | 56.37 | 62.00 | 62.55 | 54.00 | 44.03 | 34.23 | 35.03 | 43.33 | |||||||||||||
2024 | 24.61 | 32.07 | 33.19 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 29.96 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 27.24 | 28.75 | 33.53 | 39.28 | 46.91 | 53.96 | 59.10 | 57.93 | 48.84 | 39.22 | 32.67 | 28.09 | 41.37 | |||||||||||||
S.D. | 4.70 | 3.70 | 2.70 | 2.53 | 2.16 | 2.03 | 2.41 | 2.17 | 2.70 | 2.81 | 3.73 | 4.67 | 1.19 | |||||||||||||
SKEW | -1.18 | -0.95 | -0.17 | -0.03 | 0.72 | 0.68 | -0.08 | 0.07 | -0.20 | 0.12 | -0.71 | -1.00 | -0.23 | |||||||||||||
MAX | 34.84 | 35.17 | 40.16 | 44.47 | 52.33 | 59.77 | 64.74 | 62.61 | 54.00 | 45.32 | 37.97 | 35.03 | 43.63 | |||||||||||||
MIN | 10.77 | 16.92 | 25.42 | 33.92 | 43.23 | 49.70 | 53.73 | 52.86 | 40.66 | 33.48 | 22.45 | 13.97 | 38.70 | |||||||||||||
YRS | 52 | 51 | 49 | 50 | 51 | 51 | 50 | 51 | 53 | 52 | 53 | 51 | 42 |