YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1987 | ----- | z | ----- | z | ----- | z | ----- | z | 61.16 | 68.87 | 71.74 | 74.48 | 67.29 | b | 62.58 | 45.53 | 37.90 | 61.19 | d | |||||||
1988 | 40.52 | 46.66 | 45.42 | 53.40 | 59.77 | 70.43 | 77.68 | 75.55 | 67.53 | 64.45 | 48.03 | 42.67 | a | 57.68 | ||||||||||||
1989 | 41.40 | a | 43.71 | 49.61 | 56.87 | 59.53 | a | 67.67 | 76.94 | 74.19 | 70.33 | 58.97 | 49.50 | 39.77 | a | 57.37 | ||||||||||
1990 | 38.84 | 38.25 | 49.13 | 55.17 | 59.81 | 71.93 | 75.81 | 72.39 | 69.30 | 60.32 | 49.63 | 40.83 | a | 56.78 | ||||||||||||
1991 | 40.77 | 48.19 | a | 42.55 | 47.59 | a | 56.06 | 63.40 | 74.74 | 76.29 | 69.57 | 61.71 | 48.57 | 44.70 | a | 56.18 | ||||||||||
1992 | 41.65 | 46.72 | 46.81 | 54.57 | 62.45 | 66.80 | 73.77 | 73.39 | 69.93 | 61.10 | 44.23 | 40.83 | a | 56.85 | ||||||||||||
1993 | 45.10 | 43.74 | a | 47.26 | 51.67 | 62.26 | 67.30 | 72.52 | 74.48 | 68.07 | 60.10 | 46.63 | 41.45 | b | 56.71 | |||||||||||
1994 | 40.42 | 41.30 | a | 48.19 | 52.34 | a | 58.13 | a | 71.20 | 75.32 | 76.73 | a | 70.27 | 56.16 | 44.63 | 44.13 | 56.57 | |||||||||
1995 | 39.84 | 47.86 | 46.42 | 48.30 | 56.39 | 65.10 | a | 74.94 | 77.26 | 72.03 | 58.74 | 52.43 | 40.93 | b | 56.69 | |||||||||||
1996 | 41.06 | 47.52 | 47.48 | 53.70 | 60.71 | 71.23 | 78.29 | 77.45 | 67.50 | 58.03 | 50.47 | 43.94 | 58.12 | |||||||||||||
1997 | 43.19 | 41.68 | 50.90 | 53.27 | 65.39 | 65.97 | 75.39 | 77.74 | 74.10 | 58.13 | 49.70 | 40.81 | 58.02 | |||||||||||||
1998 | 41.55 | 40.04 | 46.43 | a | 48.34 | a | 55.26 | 64.70 | 76.10 | 77.71 | 71.13 | 57.84 | 47.33 | 41.06 | 55.62 | |||||||||||
1999 | 41.45 | 42.86 | 45.65 | 48.43 | 59.06 | 69.33 | 75.84 | 75.87 | 71.00 | 62.61 | 53.23 | 40.47 | a | 57.15 | ||||||||||||
2000 | 44.32 | 45.45 | 46.55 | 55.30 | 63.60 | a | 71.83 | 76.61 | 76.26 | 72.33 | 57.94 | 41.90 | 43.00 | 57.92 | ||||||||||||
2001 | 40.55 | 41.61 | 46.03 | 53.23 | 62.65 | 71.07 | 77.77 | 75.71 | 72.77 | 61.35 | 52.43 | 39.61 | 57.90 | |||||||||||||
2002 | 41.00 | 44.50 | 44.94 | 55.69 | a | 58.10 | 70.03 | 76.94 | 76.39 | 71.80 | 56.77 | 51.62 | a | 40.58 | 57.36 | |||||||||||
2003 | 48.10 | a | 44.43 | 46.74 | 49.20 | 62.55 | 68.67 | 78.84 | 77.71 | 73.17 | 65.42 | 48.33 | 42.35 | 58.79 | ||||||||||||
2004 | 44.55 | 39.52 | 56.06 | 54.13 | 62.57 | a | 67.90 | 74.68 | 73.81 | 70.40 | 58.48 | 46.77 | 43.17 | b | 57.67 | |||||||||||
2005 | 45.16 | 46.64 | 44.77 | 51.55 | a | 61.61 | 68.43 | 77.16 | 73.90 | 70.57 | 61.45 | 50.23 | 41.93 | a | 57.79 | |||||||||||
2006 | 42.52 | 45.21 | 46.03 | b | 52.20 | 62.32 | 73.14 | b | 79.39 | 75.27 | a | 68.13 | 59.52 | 51.62 | a | 40.11 | d | 57.96 | ||||||||
2007 | 40.32 | 45.00 | 51.03 | 53.00 | a | 61.86 | b | 68.83 | a | 78.52 | 77.55 | 71.37 | 60.90 | b | 52.33 | i | 39.25 | c | 58.87 | a | ||||||
2008 | 41.56 | d | 41.25 | m | 46.57 | c | 54.88 | v | 56.82 | i | 70.04 | e | 76.42 | e | 75.59 | b | 70.58 | f | 61.50 | a | 52.00 | c | 42.43 | c | 58.26 | d |
2009 | 45.64 | c | 43.79 | 47.10 | a | 51.20 | 64.26 | 68.48 | a | 79.10 | 75.35 | 71.86 | a | 56.16 | 53.00 | a | 41.11 | c | 58.09 | |||||||
2010 | 46.00 | b | 44.24 | c | 44.26 | 50.07 | a | 55.50 | a | 67.18 | b | 78.81 | 77.35 | 73.18 | b | 60.39 | 46.87 | 46.50 | a | 57.53 | ||||||
2011 | 40.10 | a | 38.64 | 47.17 | a | 54.66 | a | 57.69 | b | 67.52 | c | 78.10 | b | 79.87 | a | 73.12 | d | 62.67 | a | 48.41 | a | 40.52 | b | 57.37 | ||
2012 | 43.77 | 41.96 | a | 45.19 | 52.83 | a | 61.64 | c | 70.90 | 76.97 | a | 77.93 | a | 70.62 | a | 59.42 | 53.37 | 42.11 | c | 58.06 | ||||||
2013 | 39.27 | a | 39.89 | 49.07 | a | 54.32 | b | 62.67 | a | 70.34 | a | 78.41 | b | 76.10 | a | 70.76 | a | 54.48 | 52.66 | a | 42.39 | c | 57.53 | |||
2014 | 44.37 | a | 46.04 | a | 49.13 | 54.67 | 62.29 | 70.53 | 77.23 | 74.03 | 72.71 | b | 61.84 | 49.13 | 43.90 | a | 58.82 | |||||||||
2015 | 44.93 | a | 48.04 | b | 54.03 | a | 52.93 | 58.39 | 71.24 | a | 76.03 | b | 78.29 | 71.71 | b | 62.40 | a | 45.63 | 40.40 | a | 58.67 | |||||
2016 | 41.34 | b | 48.44 | b | 48.52 | 54.79 | a | 59.60 | a | 73.13 | 78.06 | 74.90 | 70.52 | a | 64.20 | a | 53.90 | a | 45.67 | a | 59.42 | |||||
2017 | 43.48 | 46.77 | b | 50.48 | 53.39 | b | 61.83 | b | 72.53 | 77.55 | 75.45 | 69.23 | 62.32 | 54.70 | 44.69 | b | 59.37 | |||||||||
2018 | 46.84 | 44.19 | a | 46.19 | 56.83 | a | 61.94 | 69.37 | 79.00 | 75.74 | 72.13 | 59.55 | 47.27 | 41.20 | a | 58.35 | ||||||||||
2019 | 42.58 | 40.30 | a | 46.74 | 54.10 | 55.74 | 67.80 | 78.23 | 78.13 | 72.23 | 57.06 | 52.07 | 43.94 | 57.41 | ||||||||||||
2020 | 41.37 | a | 42.00 | a | 46.48 | 51.52 | a | 61.76 | b | 68.57 | 78.17 | a | 79.19 | 71.73 | 60.90 | 51.67 | 42.13 | 57.96 | ||||||||
2021 | 41.77 | 42.70 | a | 46.03 | 56.23 | 60.65 | 74.89 | b | 77.19 | 75.71 | 71.70 | 56.23 | 54.48 | a | 45.31 | b | 58.58 | |||||||||
2022 | 42.87 | 43.04 | 48.45 | 55.50 | b | 60.87 | 73.00 | 78.10 | 75.35 | 72.87 | 59.58 | 43.67 | 42.03 | 57.94 | ||||||||||||
2023 | 40.26 | 40.36 | 44.00 | 52.90 | 60.35 | 63.67 | 80.10 | 79.23 | 69.53 | 61.41 | d | 51.20 | 45.41 | b | 57.37 | |||||||||||
2024 | 40.03 | a | 43.34 | 45.00 | f | 45.12 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.69 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 42.39 | 43.74 | 47.43 | 52.97 | 60.46 | 69.27 | 76.93 | 76.17 | 70.90 | 60.07 | 49.52 | 42.14 | 57.69 | |||||||||||||
S.D. | 2.27 | 2.87 | 2.69 | 2.47 | 2.56 | 2.71 | 1.88 | 1.75 | 1.77 | 2.53 | 3.31 | 2.00 | 0.84 | |||||||||||||
SKEW | 0.65 | -0.10 | 1.21 | -0.60 | -0.51 | -0.25 | -0.85 | 0.08 | -0.45 | -0.10 | -0.39 | 0.30 | -0.13 | |||||||||||||
MAX | 48.10 | 48.44 | 56.06 | 56.87 | 65.39 | 74.89 | 80.10 | 79.87 | 74.10 | 65.42 | 54.70 | 46.50 | 59.42 | |||||||||||||
MIN | 38.84 | 38.25 | 42.55 | 47.59 | 55.26 | 63.40 | 71.74 | 72.39 | 67.29 | 54.48 | 41.90 | 37.90 | 55.62 | |||||||||||||
YRS | 37 | 36 | 36 | 35 | 36 | 37 | 37 | 37 | 36 | 37 | 36 | 37 | 34 |