YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1978 | ----- | z | ----- | z | 42.76 | 39.47 | 45.71 | 56.37 | 62.95 | 60.79 | 51.23 | 51.68 | 34.88 | 26.50 | 47.23 | b | ||||||||||
1979 | 28.39 | 31.29 | 40.02 | 40.38 | ----- | z | 57.28 | 63.58 | 60.21 | 60.03 | a | 50.53 | 37.17 | a | 35.56 | 45.86 | a | |||||||||
1980 | 31.27 | a | 37.97 | 35.53 | 42.88 | 46.84 | 51.35 | 63.55 | 58.81 | 56.90 | 49.39 | 38.50 | 36.58 | 45.80 | ||||||||||||
1981 | 39.08 | 35.25 | 37.68 | 42.18 | 47.23 | 54.02 | 60.77 | 65.89 | 58.07 | 44.39 | 38.25 | 32.82 | 46.30 | |||||||||||||
1982 | 29.10 | b | 31.73 | 35.52 | 37.45 | 47.63 | 56.48 | 61.40 | 62.37 | 53.02 | a | 45.45 | 34.65 | 31.94 | 43.90 | |||||||||||
1983 | 35.60 | 34.88 | 37.00 | a | 38.67 | 50.16 | 53.13 | 57.90 | 63.03 | 54.30 | 48.65 | 35.48 | 29.02 | a | 44.82 | |||||||||||
1984 | 34.10 | a | 36.24 | 38.37 | 37.72 | 46.08 | 52.43 | 64.98 | 63.71 | 54.90 | 41.53 | 33.30 | 28.35 | 44.31 | ||||||||||||
1985 | 35.35 | 31.95 | 34.74 | 44.08 | 48.58 | 57.83 | 67.34 | 60.67 | a | 49.45 | a | 44.52 | 29.41 | a | 35.76 | 44.97 | ||||||||||
1986 | 36.63 | 35.21 | 41.23 | 41.63 | 49.10 | 61.43 | 59.08 | 67.81 | 49.33 | 49.02 | 37.55 | 34.32 | 46.86 | |||||||||||||
1987 | 30.57 | a | 35.61 | a | 37.48 | 48.30 | 52.87 | a | 60.55 | 60.48 | 63.84 | 61.28 | 56.95 | 38.98 | a | 29.47 | b | 48.03 | ||||||||
1988 | 31.00 | 37.95 | 37.90 | 44.97 | 47.21 | 56.13 | 65.74 | 64.81 | 58.72 | 57.39 | 35.52 | a | 33.77 | a | 47.59 | |||||||||||
1989 | 31.65 | 28.15 | a | 36.65 | 45.27 | 47.32 | 58.33 | 60.39 | 58.58 | 55.93 | 46.19 | 39.60 | 38.42 | 45.54 | ||||||||||||
1990 | 33.29 | b | 31.14 | 39.50 | a | 47.58 | 47.84 | 55.87 | 65.02 | a | 63.37 | a | 59.25 | 45.18 | 35.90 | 24.32 | a | 45.69 | ||||||||
1991 | 32.45 | 41.05 | 35.42 | a | 38.70 | 44.52 | a | 53.33 | 64.89 | 63.45 | 62.13 | 53.23 | a | 38.65 | 33.90 | 46.81 | ||||||||||
1992 | 35.43 | a | 40.34 | 44.03 | 46.58 | 57.50 | 60.64 | a | 60.52 | c | 65.34 | 57.46 | p | 50.10 | 36.97 | a | 29.45 | 47.90 | a | |||||||
1993 | 26.67 | b | 31.94 | a | 39.84 | 39.38 | 51.32 | 53.57 | 56.23 | 60.00 | 59.08 | 50.87 | 35.57 | a | 33.98 | a | 44.87 | |||||||||
1994 | 35.73 | 32.72 | a | 41.06 | 44.78 | 51.69 | 55.24 | a | 65.97 | a | 62.42 | 60.22 | 46.02 | a | 29.92 | 31.83 | b | 46.47 | ||||||||
1995 | 35.40 | 39.46 | 36.77 | 40.03 | 49.44 | 54.79 | a | 62.33 | a | 58.34 | 59.45 | 46.33 | a | 42.68 | b | 34.68 | 46.64 | |||||||||
1996 | 33.65 | g | 35.52 | 38.98 | 42.25 | 46.82 | 57.15 | 67.24 | 65.27 | a | 53.87 | 45.98 | 38.98 | 32.82 | 47.72 | a | ||||||||||
1997 | 31.94 | 35.02 | 38.29 | 40.58 | 54.40 | 55.23 | 61.85 | 63.74 | 56.32 | 45.25 | a | 40.24 | a | 32.16 | 46.25 | |||||||||||
1998 | 35.18 | a | 34.81 | a | 37.29 | 41.98 | a | 44.79 | 56.67 | d | 67.63 | 65.21 | 60.27 | 45.90 | 35.85 | 29.48 | 46.26 | |||||||||
1999 | 32.92 | 31.14 | 34.97 | 39.48 | 44.87 | 53.85 | 61.68 | 61.47 | 57.23 | 50.05 | 41.80 | 33.76 | 45.27 | |||||||||||||
2000 | 30.70 | a | 35.67 | 35.94 | 45.17 | 48.80 | a | 57.98 | 60.85 | 61.55 | 55.63 | 46.45 | b | 34.92 | 34.98 | a | 45.72 | |||||||||
2001 | 33.85 | 33.06 | a | 39.48 | 38.63 | 52.74 | 53.78 | 60.79 | 63.03 | 58.36 | a | 48.66 | 39.82 | 31.21 | 46.12 | |||||||||||
2002 | 29.89 | 34.34 | 34.60 | 42.12 | 47.77 | 57.30 | b | 65.02 | 60.61 | 56.98 | 45.76 | 41.17 | 35.55 | 45.93 | ||||||||||||
2003 | 38.52 | 34.70 | a | 37.79 | 38.77 | 48.50 | 56.50 | c | 66.50 | a | 63.60 | a | 59.48 | a | 49.63 | a | 33.61 | b | 33.54 | d | 46.76 | |||||
2004 | 33.02 | 34.22 | 41.55 | 43.98 | 48.48 | e | 57.48 | b | 64.06 | 63.32 | 53.20 | 46.03 | a | 38.07 | a | 35.21 | 46.55 | |||||||||
2005 | 33.39 | 36.85 | a | 40.32 | 40.05 | a | 50.16 | b | 51.48 | 64.30 | a | 63.74 | 53.37 | 46.22 | a | 36.48 | b | 32.76 | 45.76 | |||||||
2006 | 31.23 | a | 30.58 | b | 31.33 | a | 39.53 | 49.48 | 57.83 | a | 64.92 | 60.61 | 57.22 | l | 45.02 | 35.05 | 30.40 | 43.27 | a | |||||||
2007 | 28.70 | a | 33.75 | 38.52 | 40.22 | 49.98 | b | 54.86 | a | 64.53 | a | 59.78 | a | 53.50 | 42.08 | 37.79 | b | 27.82 | a | 44.29 | ||||||
2008 | 26.98 | 31.31 | 32.30 | a | 35.50 | 47.48 | 52.38 | 62.45 | a | 63.22 | f | 57.20 | 47.37 | 40.43 | 30.28 | a | 42.15 | a | ||||||||
2009 | 32.24 | 33.43 | a | 32.95 | 38.50 | 50.10 | 54.42 | f | 66.30 | i | 61.69 | 59.82 | 41.79 | 34.12 | 27.87 | 41.25 | b | |||||||||
2010 | 34.47 | 34.98 | 36.53 | 36.57 | 41.65 | 51.93 | 62.97 | 61.10 | 55.58 | d | 46.82 | 40.27 | o | 29.87 | a | 44.77 | a | |||||||||
2011 | 31.60 | 30.12 | 32.71 | 34.25 | 41.56 | 51.85 | 59.35 | 62.81 | 60.63 | 46.68 | 34.25 | 33.15 | 43.25 | |||||||||||||
2012 | 32.52 | 31.81 | 31.97 | 40.67 | 47.65 | 51.77 | 61.66 | 65.19 | 60.92 | 47.71 | 37.37 | 29.47 | 44.89 | |||||||||||||
2013 | 29.61 | 32.00 | 38.35 | 43.92 | 51.06 | 57.78 | 67.31 | 63.32 | 57.07 | 45.87 | 39.70 | 31.47 | 46.46 | |||||||||||||
2014 | 39.08 | 35.93 | 40.24 | 42.85 | 52.42 | a | 55.50 | 67.53 | 65.31 | 60.82 | 50.90 | 40.02 | 36.52 | 48.93 | ||||||||||||
2015 | 39.32 | 41.64 | 44.50 | 42.35 | 51.31 | 63.53 | 65.52 | 64.81 | 55.75 | 52.35 | 36.28 | c | 33.26 | b | 49.22 | |||||||||||
2016 | 31.42 | 37.26 | 38.00 | 47.88 | 51.65 | 58.78 | 62.05 | 65.69 | 55.62 | 45.03 | 41.88 | 27.27 | 46.88 | |||||||||||||
2017 | 27.61 | 33.89 | 37.06 | 39.37 | 50.73 | 58.53 | 66.85 | a | 68.32 | a | 58.18 | 45.66 | 35.82 | 32.73 | 46.23 | |||||||||||
2018 | 36.85 | 30.38 | 34.44 | 41.36 | a | 51.94 | 55.07 | 64.95 | 63.61 | 55.50 | 48.00 | 40.65 | 31.92 | 46.22 | ||||||||||||
2019 | 36.61 | 27.79 | 35.79 | 42.80 | 49.77 | 56.50 | 61.79 | 64.27 | 53.52 | 42.82 | 42.13 | 34.31 | 45.68 | |||||||||||||
2020 | 33.85 | 34.60 | 35.70 | a | 43.55 | 50.39 | 54.97 | 61.98 | 64.15 | 61.16 | k | 50.18 | 36.70 | 35.19 | 45.57 | a | ||||||||||
2021 | 34.27 | 32.20 | 36.06 | 44.92 | 49.77 | 61.98 | 66.50 | 63.61 | 57.97 | a | 44.00 | 39.68 | 32.60 | 46.96 | ||||||||||||
2022 | 36.60 | 35.89 | 39.24 | 37.87 | 43.66 | 55.02 | 66.52 | 67.37 | 61.07 | 54.73 | 35.90 | 32.11 | 47.16 | |||||||||||||
2023 | 32.58 | 32.50 | 30.48 | 39.12 | 51.55 | 56.38 | 66.11 | 65.26 | 55.03 | 47.98 | 40.03 | 38.06 | 46.26 | |||||||||||||
2024 | 35.26 | 35.78 | 36.34 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.79 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 33.15 | 34.22 | 37.30 | 41.40 | 48.90 | 56.02 | 63.47 | 63.15 | 56.89 | 47.66 | 37.37 | 32.31 | 46.10 | |||||||||||||
S.D. | 3.22 | 3.10 | 3.13 | 3.25 | 3.15 | 2.89 | 2.81 | 2.37 | 3.18 | 3.59 | 3.00 | 3.09 | 1.24 | |||||||||||||
SKEW | -0.02 | 0.33 | 0.05 | 0.19 | -0.09 | 0.45 | -0.39 | -0.08 | -0.48 | 0.78 | -0.44 | -0.34 | 0.20 | |||||||||||||
MAX | 39.32 | 41.64 | 44.50 | 48.30 | 57.50 | 63.53 | 67.63 | 68.32 | 62.13 | 57.39 | 42.68 | 38.42 | 49.22 | |||||||||||||
MIN | 26.67 | 27.79 | 30.48 | 34.25 | 41.56 | 51.35 | 56.23 | 58.34 | 49.33 | 41.53 | 29.41 | 24.32 | 43.25 | |||||||||||||
YRS | 45 | 46 | 47 | 46 | 45 | 45 | 45 | 45 | 43 | 46 | 45 | 46 | 37 |