YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.83 | b | 61.42 | a | 58.98 | a | 53.45 | a | 47.35 | 38.07 | a | 53.18 | f | |
1988 | 39.34 | 44.02 | 44.02 | b | 48.43 | c | 51.76 | 54.90 | 60.27 | 59.62 | a | 56.22 | 52.75 | a | 43.95 | a | 40.90 | a | 49.68 | |||||||
1989 | 38.85 | a | 34.54 | b | 41.68 | 49.77 | 52.90 | 57.95 | a | 58.79 | 59.48 | a | 58.64 | a | 50.60 | a | 44.61 | b | 41.70 | a | 49.13 | |||||
1990 | 42.54 | c | 37.61 | 46.09 | c | 50.03 | 52.03 | a | 55.77 | b | 62.31 | 62.13 | a | 59.91 | c | 48.18 | 44.74 | a | 33.50 | a | 49.57 | |||||
1991 | 37.35 | 46.43 | a | 41.32 | 46.27 | 50.55 | 54.24 | a | 59.77 | 60.00 | b | 59.23 | b | 49.81 | 44.77 | 41.56 | 49.28 | |||||||||
1992 | 43.11 | 45.11 | a | 48.23 | a | 48.50 | 55.05 | a | 58.50 | 61.18 | a | 60.76 | b | 54.92 | 52.02 | 43.38 | a | 37.22 | a | 50.66 | ||||||
1993 | 34.74 | 39.08 | b | 44.61 | 47.64 | a | 55.87 | a | 56.42 | 57.79 | 61.32 | a | 56.78 | 51.56 | 39.77 | 38.92 | a | 48.71 | ||||||||
1994 | 43.22 | a | 38.46 | b | 45.21 | 48.82 | 52.47 | b | 55.08 | 59.76 | 60.90 | a | 59.74 | a | 47.90 | b | 38.76 | a | 38.67 | a | 49.08 | |||||
1995 | 43.79 | 44.69 | a | 43.74 | 46.34 | b | 54.44 | 57.43 | 62.02 | 58.47 | 60.93 | b | 49.72 | a | 46.52 | b | 42.06 | 50.84 | ||||||||
1996 | 39.90 | 41.78 | 45.68 | 48.83 | 49.11 | 55.32 | 61.83 | a | 60.45 | a | 55.30 | 48.73 | a | 42.76 | a | 38.55 | a | 49.02 | ||||||||
1997 | 40.82 | a | 42.27 | 42.85 | a | 46.80 | 54.44 | 56.48 | a | 60.79 | b | 62.61 | 58.95 | b | 50.67 | a | 47.05 | a | 40.62 | b | 50.36 | |||||
1998 | ----- | z | 44.20 | 44.95 | 46.38 | 53.11 | 56.50 | 61.95 | a | 61.11 | 58.97 | 50.21 | b | 45.85 | c | 37.45 | a | 50.97 | a | |||||||
1999 | 41.17 | d | 40.30 | 41.85 | 44.37 | c | 49.10 | 54.67 | a | 58.39 | 61.32 | 56.21 | b | 48.65 | a | 46.36 | a | 43.00 | a | 48.78 | ||||||
2000 | 38.55 | a | 42.12 | c | 42.03 | a | 48.87 | c | 51.00 | b | 57.76 | a | 60.07 | b | 58.82 | 56.86 | a | 49.04 | c | 40.55 | 39.45 | 48.76 | ||||
2001 | 41.73 | c | 39.08 | c | 43.50 | e | 44.92 | d | 51.68 | 53.85 | c | 58.41 | b | 60.00 | c | 56.86 | a | 49.16 | c | 43.52 | b | 40.39 | c | 48.59 | ||
2002 | 41.62 | c | 41.13 | a | 41.56 | d | 45.61 | b | 48.79 | c | 57.38 | 60.11 | d | 60.10 | a | 55.56 | c | 49.18 | c | 45.70 | 42.12 | b | 49.07 | |||
2003 | 45.27 | 40.04 | a | 45.05 | b | 46.18 | b | 50.66 | b | 58.80 | 61.27 | a | 60.30 | a | 57.56 | c | 51.23 | c | 40.43 | i | 40.39 | c | 50.61 | a | ||
2004 | 40.91 | b | 42.84 | a | 44.80 | c | 49.88 | a | 53.17 | d | 58.22 | 62.44 | 63.19 | 55.48 | 51.36 | b | 42.45 | a | 41.72 | d | 50.54 | |||||
2005 | 41.27 | a | 41.33 | b | 48.48 | i | 52.37 | c | 58.07 | b | 58.19 | a | 61.97 | 62.45 | a | 56.40 | a | 53.04 | d | 44.43 | a | 41.18 | a | 51.88 | a | |
2006 | 43.87 | a | 40.66 | 44.28 | a | 48.22 | c | 53.78 | a | 58.68 | 62.08 | 59.76 | 57.40 | 49.06 | 42.10 | 39.63 | 49.96 | |||||||||
2007 | 36.71 | b | 42.55 | 43.97 | a | 47.19 | d | 54.76 | f | ----- | z | 59.75 | s | 60.35 | 55.55 | b | 47.85 | 41.66 | b | 38.61 | 46.05 | c | ||||
2008 | 36.67 | a | 41.38 | 41.52 | a | 43.53 | 52.07 | b | 53.94 | c | 58.89 | 60.20 | c | 55.82 | e | 48.18 | a | 49.03 | l | 47.36 | q | 49.22 | b | |||
2009 | 35.20 | u | 39.12 | 40.35 | a | 45.88 | a | 52.33 | a | 58.61 | c | 60.50 | d | 60.20 | c | 58.27 | d | 49.11 | c | 44.50 | 36.33 | a | 49.56 | a | ||
2010 | 45.47 | a | 44.31 | a | 43.94 | e | 46.05 | a | 49.20 | a | 53.43 | c | 58.00 | c | 59.07 | p | ----- | z | 48.21 | s | 36.88 | q | 41.17 | b | 47.70 | d |
2011 | 39.50 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.18 | t | 60.06 | m | ----- | z | ----- | z | 40.73 | b | 38.39 | c | 39.56 | j |
2012 | 39.19 | d | 42.18 | a | 41.52 | a | 48.00 | b | 50.98 | b | 53.07 | b | 58.90 | 61.68 | 56.73 | 49.88 | a | 44.97 | 40.53 | 48.97 | ||||||
2013 | 37.48 | 41.30 | a | 44.02 | 47.32 | b | 52.88 | a | 57.48 | 60.94 | 60.91 | c | 58.78 | 48.15 | a | 42.64 | b | 36.07 | c | 49.00 | ||||||
2014 | 41.52 | f | 38.98 | a | 45.69 | 47.65 | 54.98 | d | 57.55 | 62.32 | a | 63.83 | a | 60.67 | a | 56.31 | ----- | z | ----- | z | 54.22 | c | ||||
2015 | ----- | z | ----- | z | 50.87 | l | 47.39 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.39 | k |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | 51.71 | q | 56.18 | b | 59.69 | 61.47 | 55.59 | a | 51.08 | 48.33 | 35.31 | 52.52 | e | |||||
2017 | 35.98 | a | 38.48 | a | 42.31 | 46.08 | 52.21 | 56.97 | 59.29 | b | 62.34 | 58.62 | a | 48.45 | 43.60 | 38.65 | 48.58 | |||||||||
2018 | 42.84 | 38.40 | b | 41.15 | a | 47.02 | 54.12 | b | 55.62 | b | 60.95 | 61.39 | 55.57 | 49.88 | a | 45.45 | a | 40.47 | a | 49.40 | ||||||
2019 | 41.69 | 34.68 | 42.23 | 47.41 | a | 53.90 | 56.57 | a | 60.65 | 61.92 | a | 57.23 | 46.40 | a | 42.42 | 41.13 | 48.85 | |||||||||
2020 | 41.76 | b | 40.39 | a | 40.22 | b | 47.21 | a | 53.55 | 56.35 | 59.67 | b | 60.28 | b | 60.57 | 51.21 | 42.92 | 41.84 | 49.66 | |||||||
2021 | 40.79 | 38.45 | 40.79 | b | 47.97 | 51.17 | b | 59.67 | a | 60.65 | 60.75 | a | 55.82 | b | 48.44 | 44.92 | 36.22 | b | 48.80 | |||||||
2022 | 39.96 | c | 40.11 | a | 43.37 | 42.89 | b | 48.23 | 56.42 | 61.31 | 62.58 | 59.18 | 52.94 | e | 39.52 | c | 37.82 | a | 48.69 | |||||||
2023 | 42.33 | b | 38.57 | 40.10 | 44.13 | 55.33 | a | 55.02 | h | 61.00 | b | 64.10 | e | 56.98 | b | 51.30 | a | 42.33 | a | 43.42 | a | 49.05 | a | |||
2024 | 40.30 | a | 42.54 | c | 42.73 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.86 | i |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 40.62 | 40.80 | 43.19 | 47.18 | 52.47 | 56.50 | 60.41 | 61.06 | 57.54 | 50.16 | 43.71 | 39.50 | 49.33 | |||||||||||||
S.D. | 2.68 | 2.72 | 1.95 | 1.97 | 2.27 | 1.73 | 1.33 | 1.32 | 1.76 | 2.03 | 2.35 | 2.34 | 0.69 | |||||||||||||
SKEW | -0.30 | -0.20 | 0.36 | 0.09 | 0.11 | -0.26 | -0.23 | 0.38 | 0.33 | 0.82 | -0.20 | -0.55 | 0.94 | |||||||||||||
MAX | 45.47 | 46.43 | 48.23 | 52.37 | 58.07 | 59.67 | 62.44 | 64.10 | 60.93 | 56.31 | 48.33 | 43.42 | 50.84 | |||||||||||||
MIN | 34.74 | 34.54 | 40.10 | 42.89 | 48.23 | 53.07 | 57.79 | 58.47 | 54.92 | 46.40 | 38.76 | 33.50 | 48.58 | |||||||||||||
YRS | 31 | 34 | 33 | 34 | 32 | 32 | 34 | 34 | 34 | 34 | 32 | 34 | 24 |