YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.21 | 70.55 | 59.86 | a | 60.23 | 43.87 | 38.23 | 57.49 | f | |||||
1979 | 37.74 | 39.20 | 48.03 | 50.09 | a | 60.94 | 66.90 | 70.97 | 68.56 | 67.02 | 57.48 | c | 44.35 | 41.03 | 54.36 | |||||||||||
1980 | 40.61 | 45.16 | a | 44.15 | 52.36 | a | 58.23 | c | 60.18 | 71.66 | 70.02 | 64.23 | 57.15 | 47.03 | 44.18 | a | 54.58 | |||||||||
1981 | 43.02 | 43.02 | 44.89 | 53.38 | i | 60.02 | b | 68.52 | d | 72.47 | 71.66 | 65.90 | 52.52 | b | 46.73 | 40.79 | 55.41 | a | ||||||||
1982 | 35.79 | c | 41.38 | 42.23 | 47.32 | 60.42 | a | 64.78 | 68.84 | 69.17 | a | 61.32 | 53.12 | a | 41.65 | 39.03 | a | 52.09 | ||||||||
1983 | 41.15 | 42.04 | a | 42.92 | a | 46.90 | a | 59.22 | a | 64.65 | 66.55 | b | 68.40 | 65.83 | 56.81 | 43.10 | 38.19 | 52.98 | ||||||||
1984 | 43.13 | 42.03 | 48.10 | 49.73 | b | 59.37 | 64.88 | a | 75.06 | 70.31 | 65.35 | 51.19 | 40.67 | 37.71 | 53.96 | |||||||||||
1985 | 42.27 | 43.15 | a | 43.45 | 56.70 | 57.52 | b | 70.12 | 73.48 | 68.13 | 60.21 | b | 54.19 | 40.48 | c | 42.74 | b | 54.37 | ||||||||
1986 | 43.48 | 45.69 | a | 50.77 | a | 52.67 | a | 59.35 | 69.48 | a | 70.23 | 71.67 | b | 59.03 | 56.50 | 46.79 | a | 40.76 | 55.54 | |||||||
1987 | 37.61 | 43.15 | a | 44.45 | a | 55.55 | 62.13 | a | 67.83 | 67.81 | b | 71.79 | b | 66.27 | b | 58.17 | b | 45.30 | 38.20 | d | 54.86 | |||||
1988 | 37.61 | 47.39 | a | 49.13 | 51.91 | a | 55.25 | a | 65.32 | 75.00 | 71.81 | 66.37 | 61.95 | 44.27 | 40.66 | b | 55.56 | |||||||||
1989 | 38.32 | c | 37.84 | 43.79 | 55.53 | 59.35 | a | 66.75 | 69.65 | 67.66 | c | 63.50 | a | 54.35 | a | 48.10 | a | 44.06 | 54.08 | |||||||
1990 | 39.98 | 39.05 | 47.92 | 57.50 | 56.08 | 64.27 | 72.89 | 69.95 | 65.88 | 55.77 | 44.72 | 35.20 | c | 54.10 | ||||||||||||
1991 | 41.31 | 47.59 | 41.83 | b | 49.43 | 55.83 | b | 63.43 | 74.84 | 68.65 | 69.60 | 60.58 | 48.00 | 40.60 | 55.14 | |||||||||||
1992 | 40.40 | 45.31 | c | 49.05 | b | 54.97 | 66.19 | 67.28 | 70.24 | 71.95 | 65.75 | 58.34 | 46.33 | 36.88 | c | 56.06 | ||||||||||
1993 | 35.81 | 38.70 | 48.84 | 49.15 | 57.39 | 63.93 | 69.19 | b | 68.53 | b | 65.15 | 57.10 | 44.55 | 39.97 | a | 53.19 | ||||||||||
1994 | 43.27 | e | 39.85 | a | 49.08 | a | 52.52 | a | 60.38 | b | 64.19 | a | 74.69 | b | 69.77 | a | 65.48 | a | 54.02 | a | 37.50 | a | 36.23 | a | 53.91 | |
1995 | 40.72 | b | 48.21 | 44.02 | 48.59 | a | 58.27 | a | 62.22 | 68.52 | b | 68.38 | a | 65.38 | 56.88 | b | 50.22 | a | 42.91 | b | 54.53 | |||||
1996 | 39.71 | 42.89 | a | 47.27 | a | 51.17 | 57.18 | 66.82 | 73.90 | 71.79 | 62.70 | 54.37 | 46.75 | 41.26 | 54.65 | |||||||||||
1997 | 40.14 | b | 43.46 | 48.95 | a | 51.82 | 62.39 | 64.05 | a | 71.10 | b | 68.87 | 63.80 | 54.28 | a | 46.95 | a | 41.12 | a | 54.74 | ||||||
1998 | 42.02 | a | 38.16 | 45.13 | 49.20 | 51.52 | 63.02 | 72.45 | 72.27 | 66.38 | 53.47 | 42.66 | a | 37.57 | c | 52.82 | ||||||||||
1999 | 41.74 | 38.06 | a | 42.05 | c | 50.05 | b | 59.27 | c | 65.86 | a | 68.66 | 68.32 | 67.27 | 56.84 | 47.39 | b | 42.42 | a | 53.99 | ||||||
2000 | 40.47 | a | 42.31 | 46.33 | a | 53.53 | a | 58.12 | b | 68.77 | 69.27 | 71.39 | 63.87 | 54.95 | 43.40 | a | 42.59 | b | 54.58 | |||||||
2001 | 39.50 | 38.57 | a | 49.08 | a | 49.10 | 64.21 | b | 66.45 | a | 71.25 | a | 71.65 | a | 66.27 | 58.37 | a | 45.64 | b | 37.40 | a | 54.79 | ||||
2002 | 37.58 | a | 43.60 | b | 44.71 | 52.88 | d | 58.75 | a | 67.45 | a | 73.67 | a | 70.75 | a | 65.33 | 56.61 | 47.24 | a | 40.52 | b | 54.92 | ||||
2003 | 44.18 | a | 43.30 | 47.38 | a | 44.70 | 58.08 | 69.48 | a | 73.97 | a | 69.15 | 67.34 | b | 58.77 | a | 42.64 | a | 40.32 | 54.94 | ||||||
2004 | 37.79 | 41.14 | 52.13 | a | 54.05 | 58.92 | 67.72 | a | 72.56 | 70.60 | a | 64.22 | a | 55.21 | b | 46.70 | 42.17 | a | 55.27 | |||||||
2005 | 39.68 | a | 45.02 | 48.10 | 49.75 | 59.03 | a | 62.05 | a | 74.00 | b | 71.62 | b | 62.31 | c | 54.74 | 45.54 | b | 41.78 | d | 54.47 | |||||
2006 | 38.66 | b | 43.27 | 38.71 | b | 49.62 | a | 60.83 | a | 69.57 | a | 73.86 | b | 70.69 | 65.65 | 55.90 | b | 44.29 | a | 39.57 | c | 54.22 | ||||
2007 | 39.90 | 42.58 | b | 50.50 | 52.13 | 61.00 | a | 66.76 | a | 72.79 | 70.43 | a | 62.77 | 51.77 | 47.18 | 36.68 | a | 54.54 | ||||||||
2008 | 35.28 | a | 41.10 | 44.25 | a | 48.75 | 59.83 | a | 66.91 | a | 72.52 | 73.15 | a | 66.85 | 57.02 | 48.80 | 37.24 | 54.31 | ||||||||
2009 | 42.11 | 40.46 | 45.24 | 51.33 | 62.24 | 66.20 | 73.60 | 70.02 | 67.22 | 53.63 | 44.82 | 37.08 | 54.50 | |||||||||||||
2010 | 40.07 | a | 41.50 | 44.00 | 45.17 | 52.55 | 65.27 | 73.11 | 68.73 | 63.87 | 55.95 | 42.86 | a | 39.77 | 52.74 | |||||||||||
2011 | 41.81 | 39.96 | 40.50 | 47.18 | 53.03 | 62.25 | 70.05 | 71.08 | 68.03 | 55.31 | 42.33 | 40.90 | 52.70 | |||||||||||||
2012 | 38.65 | 40.93 | 41.29 | 49.62 | 59.40 | 63.55 | 70.84 | 73.02 | 67.72 | 56.77 | 46.02 | 36.76 | 53.71 | |||||||||||||
2013 | 36.35 | 42.32 | 47.66 | 53.58 | 59.55 | 67.68 | 73.56 | 69.55 | 63.03 | 52.71 | 46.10 | 38.05 | 54.18 | |||||||||||||
2014 | 42.94 | 41.55 | 46.84 | 51.50 | 59.27 | 68.67 | 75.89 | 71.55 | 66.32 | 56.77 | 45.82 | 42.81 | 55.83 | |||||||||||||
2015 | ----- | z | 47.77 | 50.98 | 51.57 | 59.40 | 71.67 | 73.13 | 70.85 | 64.70 | 58.71 | 42.67 | 36.29 | 57.07 | a | |||||||||||
2016 | 37.10 | 44.98 | 45.50 | 54.52 | 59.69 | 67.88 | 71.65 | 72.71 | 64.77 | 51.35 | 46.03 | 35.32 | 54.29 | |||||||||||||
2017 | 34.31 | 41.23 | 45.45 | 48.35 | 60.66 | 67.84 | b | 74.28 | a | 75.39 | 65.48 | 54.55 | 43.67 | 40.28 | a | 54.29 | ||||||||||
2018 | 42.27 | 42.14 | 41.34 | 50.85 | 61.08 | 66.82 | 75.13 | 69.66 | 63.77 | 54.92 | 46.83 | 38.84 | 54.47 | |||||||||||||
2019 | 39.87 | 34.96 | 41.56 | 53.20 | 56.68 | 67.12 | 71.29 | 70.97 | 62.52 | 50.89 | 48.92 | 36.97 | 52.91 | |||||||||||||
2020 | 38.03 | 44.02 | 43.32 | 52.78 | 58.08 | 66.02 | 73.81 | 73.45 | 67.87 | 59.48 | 43.88 | 38.77 | 54.96 | |||||||||||||
2021 | 38.69 | 40.04 | 42.97 | 53.10 | 61.35 | 71.73 | 76.89 | 73.06 | 65.52 | 52.02 | 46.07 | 37.11 | 54.88 | |||||||||||||
2022 | 41.18 | 43.95 | 48.55 | 47.33 | 55.44 | 64.98 | 73.27 | 74.23 | 67.12 | 59.23 | 40.02 | 34.69 | 54.16 | |||||||||||||
2023 | 37.73 | 38.77 | 35.85 | 47.48 | 59.21 | 65.15 | 74.24 | 71.81 | 63.03 | 54.68 | 45.50 | 42.52 | 53.00 | |||||||||||||
2024 | 38.69 | 40.47 | 42.34 | 48.94 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.50 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 39.75 | 42.11 | 45.45 | 51.03 | 58.95 | 66.28 | 72.28 | 70.73 | 64.95 | 55.77 | 45.01 | 39.44 | 54.28 | |||||||||||||
S.D. | 2.40 | 2.88 | 3.48 | 2.96 | 2.77 | 2.54 | 2.31 | 1.76 | 2.24 | 2.61 | 2.56 | 2.49 | 0.88 | |||||||||||||
SKEW | -0.20 | 0.10 | -0.31 | 0.03 | -0.39 | -0.04 | -0.45 | 0.33 | -0.64 | 0.13 | -0.60 | 0.02 | -0.47 | |||||||||||||
MAX | 44.18 | 48.21 | 52.13 | 57.50 | 66.19 | 71.73 | 76.89 | 75.39 | 69.60 | 61.95 | 50.22 | 44.18 | 56.06 | |||||||||||||
MIN | 34.31 | 34.96 | 35.85 | 44.70 | 51.52 | 60.18 | 66.55 | 67.66 | 59.03 | 50.89 | 37.50 | 34.69 | 52.09 | |||||||||||||
YRS | 45 | 46 | 46 | 44 | 45 | 45 | 46 | 46 | 46 | 46 | 46 | 46 | 43 |