YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.58 | 34.67 | 35.68 | 35.97 | i | |||
1981 | 33.06 | 32.86 | 33.84 | 36.53 | 43.45 | 45.76 | a | 49.52 | 49.77 | 43.63 | 37.77 | 34.03 | 31.19 | 39.29 | ||||||||||||
1982 | 29.10 | 31.46 | 31.23 | 32.60 | 39.61 | 46.57 | 49.16 | 47.76 | b | 46.20 | 38.48 | 30.53 | 29.90 | 37.72 | ||||||||||||
1983 | 32.40 | a | 33.14 | 34.68 | 34.79 | a | 43.00 | 48.23 | 50.00 | 49.03 | 43.23 | 36.06 | 36.97 | 23.71 | 38.77 | |||||||||||
1984 | 32.42 | 33.41 | 35.48 | 35.63 | 40.10 | 46.67 | 46.61 | 48.10 | 41.47 | 37.10 | 33.90 | 27.94 | 38.24 | |||||||||||||
1985 | 30.48 | 29.93 | 30.97 | 37.00 | 42.32 | 46.20 | 47.52 | 46.90 | 42.80 | 40.00 | 26.53 | 28.77 | 37.45 | |||||||||||||
1986 | 34.03 | 31.00 | 36.55 | 36.67 | 42.77 | a | 45.67 | 48.81 | 49.52 | 44.97 | 38.19 | 35.52 | a | 29.93 | a | 39.47 | ||||||||||
1987 | 31.94 | 34.50 | 34.00 | 37.07 | 41.10 | 46.00 | 49.87 | 47.39 | 44.87 | 36.68 | 36.69 | a | 32.13 | a | 39.35 | |||||||||||
1988 | 27.70 | a | 32.14 | 32.00 | a | 37.13 | 41.27 | a | 46.57 | 48.90 | 48.58 | 43.61 | b | 42.55 | 34.79 | a | 33.65 | 39.07 | ||||||||
1989 | 31.06 | 22.07 | 32.71 | 36.97 | 42.47 | a | 46.53 | 49.06 | 49.39 | 43.57 | 36.71 | 36.23 | 35.23 | 38.50 | ||||||||||||
1990 | 32.97 | 28.39 | 32.27 | a | 40.38 | a | 43.42 | 48.57 | 50.35 | 50.84 | 46.18 | b | 37.97 | 36.14 | a | 28.06 | 39.63 | |||||||||
1991 | 30.13 | 36.11 | a | 32.57 | a | 37.03 | 44.00 | a | 46.41 | a | 49.58 | 50.53 | a | 45.18 | b | 36.93 | a | 36.79 | b | 33.53 | a | 39.90 | ||||
1992 | 33.52 | 34.29 | a | 35.36 | c | 39.07 | 41.61 | c | 48.57 | b | 51.59 | b | 48.19 | 41.71 | b | 40.45 | 35.46 | b | 29.93 | b | 39.98 | |||||
1993 | 21.46 | c | 25.19 | a | 33.20 | a | 38.27 | 46.93 | a | 48.83 | 50.67 | a | 51.06 | 42.30 | 40.81 | d | 28.33 | c | 31.80 | a | 38.24 | |||||
1994 | 32.87 | a | 29.48 | a | 34.03 | a | 40.00 | 42.74 | 45.20 | 49.52 | 50.68 | 46.17 | 35.27 | a | 31.81 | d | 29.79 | b | 38.96 | |||||||
1995 | 28.79 | b | 33.04 | a | 33.03 | 36.29 | b | 43.42 | 48.07 | a | 51.57 | a | 47.61 | 45.60 | e | 38.83 | b | 35.77 | 30.64 | c | 39.39 | |||||
1996 | 30.71 | 29.11 | b | 32.97 | a | 39.25 | b | 40.37 | a | 46.17 | 49.16 | ----- | z | 44.10 | a | 37.10 | b | 33.13 | 28.58 | 37.33 | a | |||||
1997 | 31.97 | 32.50 | 32.64 | c | 34.22 | c | 44.23 | 48.10 | 51.97 | a | 51.26 | 47.11 | c | 41.90 | a | 36.00 | a | 31.20 | a | 40.26 | ||||||
1998 | 30.90 | b | 35.37 | a | 36.77 | 36.29 | b | 46.43 | a | 49.67 | 53.55 | 51.03 | a | 45.50 | 37.81 | 36.87 | 31.60 | a | 40.98 | |||||||
1999 | 32.35 | 32.70 | a | 33.03 | b | 33.27 | 39.97 | a | 46.37 | 47.14 | c | 51.42 | 42.22 | c | 37.37 | a | 36.90 | 33.52 | d | 38.86 | ||||||
2000 | 28.66 | b | 29.87 | f | 32.96 | f | 36.45 | h | 43.40 | a | 46.27 | d | 50.68 | 48.80 | a | 43.27 | d | 37.67 | d | 31.83 | a | 30.23 | a | 40.09 | c | |
2001 | 32.90 | 28.18 | 32.52 | b | 35.63 | c | 40.06 | 46.28 | a | 45.97 | a | 45.34 | b | 42.30 | 38.24 | b | 34.67 | 28.87 | a | 37.58 | ||||||
2002 | 33.14 | i | 27.50 | n | 31.13 | 35.77 | 41.48 | 48.33 | 50.90 | 49.13 | 42.89 | b | 38.10 | b | 34.10 | 33.32 | 40.52 | b | ||||||||
2003 | 35.37 | a | 31.29 | 36.13 | a | 38.43 | 42.10 | 48.37 | 50.13 | a | 49.16 | 45.97 | a | 42.43 | a | 31.36 | b | 31.48 | 40.18 | |||||||
2004 | 33.72 | b | 32.14 | 36.32 | 38.17 | a | 45.32 | 48.66 | a | 52.74 | 53.90 | 44.80 | 40.97 | 34.93 | 34.87 | a | 41.38 | |||||||||
2005 | 32.87 | 28.29 | 35.48 | 38.41 | a | 45.94 | 49.87 | 50.90 | 49.19 | 44.07 | 40.33 | a | 33.28 | a | 32.65 | 40.11 | ||||||||||
2006 | 33.23 | 28.64 | c | 33.37 | a | 37.04 | d | 43.16 | 49.33 | 52.61 | 47.90 | 45.23 | 36.80 | a | 32.41 | a | 31.29 | 39.25 | ||||||||
2007 | 28.61 | 33.11 | 35.32 | 36.55 | a | 40.58 | 46.67 | 52.90 | 51.61 | 45.53 | 37.71 | 33.00 | 30.80 | a | 39.37 | |||||||||||
2008 | 29.45 | 32.55 | 30.61 | 33.73 | 44.39 | 47.07 | 48.35 | 50.45 | 45.93 | 37.61 | 38.07 | 28.81 | 38.92 | |||||||||||||
2009 | 30.81 | 28.57 | 31.39 | 36.53 | 42.19 | 49.03 | 51.90 | 51.39 | 46.27 | 39.87 | 35.87 | 27.10 | 39.24 | |||||||||||||
2010 | 36.74 | 34.79 | 34.65 | 37.90 | 41.61 | 49.03 | 49.32 | 49.13 | 48.43 | 40.00 | 32.17 | 32.39 | 40.51 | |||||||||||||
2011 | 32.97 | 28.82 | 34.71 | 34.73 | 43.10 | 48.73 | 50.94 | 51.06 | 47.47 | 39.26 | 31.47 | 29.61 | 39.41 | |||||||||||||
2012 | 29.23 | 32.79 | 33.13 | 38.37 | 42.32 | 47.40 | 50.97 | 51.77 | 44.30 | 40.16 | 35.30 | 32.13 | 39.82 | |||||||||||||
2013 | 31.26 | 35.54 | 33.32 | 38.40 | 44.19 | 50.33 | 49.42 | 52.23 | 49.23 | 38.94 | 32.97 | 27.94 | 40.31 | |||||||||||||
2014 | 32.48 | 28.71 | 36.52 | 37.63 | 46.00 | 49.00 | 51.03 | 51.26 | 47.30 | 44.48 | 32.10 | a | 33.94 | 40.87 | ||||||||||||
2015 | 36.77 | 38.36 | 37.00 | 35.73 | 45.39 | 49.00 | 53.35 | 51.97 | 45.60 | 44.58 | 32.27 | 32.58 | 41.88 | |||||||||||||
2016 | 32.32 | 35.00 | 36.42 | 42.67 | 46.23 | 49.87 | 53.81 | 52.52 | 45.40 | 42.10 | 39.07 | 28.06 | 41.95 | |||||||||||||
2017 | 26.16 | 30.50 | 36.48 | 38.67 | 44.68 | 48.59 | a | 50.94 | 52.06 | 47.73 | 37.97 | 34.77 | 29.35 | 39.82 | ||||||||||||
2018 | 32.95 | l | 39.25 | x | ----- | z | ----- | z | ----- | z | 52.17 | l | 51.19 | 51.60 | a | 47.67 | 38.81 | 37.11 | b | 31.74 | h | 45.27 | g | |||
2019 | 33.85 | d | 26.55 | h | ----- | z | ----- | z | 48.50 | m | 49.84 | e | 53.87 | a | 54.55 | 50.57 | 36.55 | 29.92 | e | 34.87 | 43.00 | d | ||||
2020 | 33.87 | 32.62 | 33.00 | 39.00 | 45.35 | 49.57 | 52.29 | 50.65 | 50.57 | 42.97 | 33.87 | 33.48 | 41.44 | |||||||||||||
2021 | 33.45 | 32.96 | 32.55 | b | 38.24 | a | 44.42 | 51.93 | 52.97 | 52.48 | 48.73 | 40.42 | 38.40 | 29.23 | 41.32 | |||||||||||
2022 | 28.90 | a | 34.25 | t | 33.22 | v | ----- | z | 40.92 | r | ----- | z | 54.13 | 55.16 | 49.79 | a | 43.58 | 31.63 | 29.84 | 41.86 | e | |||||
2023 | 31.12 | e | 31.16 | i | 33.30 | u | 36.65 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.73 | p | 31.12 | k |
2024 | 32.90 | a | 36.36 | a | 36.29 | 40.17 | 44.37 | a | 50.00 | 53.74 | 54.06 | 51.07 | 42.90 | 38.93 | 35.61 | 43.03 | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 31.56 | 31.73 | 33.94 | 37.19 | 43.14 | 47.98 | 50.69 | 50.39 | 45.59 | 39.27 | 34.24 | 31.05 | 39.74 | |||||||||||||
S.D. | 2.78 | 3.24 | 1.87 | 2.06 | 1.96 | 1.58 | 2.03 | 2.14 | 2.48 | 2.37 | 2.74 | 2.59 | 1.27 | |||||||||||||
SKEW | -1.09 | -0.61 | 0.07 | 0.04 | 0.03 | 0.15 | -0.22 | 0.05 | 0.44 | 0.62 | -0.50 | -0.21 | 0.43 | |||||||||||||
MAX | 36.77 | 38.36 | 37.00 | 42.67 | 46.93 | 51.93 | 54.13 | 55.16 | 51.07 | 44.58 | 39.07 | 35.68 | 43.03 | |||||||||||||
MIN | 21.46 | 22.07 | 30.61 | 32.60 | 39.61 | 45.20 | 45.97 | 45.34 | 41.47 | 35.27 | 26.53 | 23.71 | 37.45 | |||||||||||||
YRS | 42 | 38 | 39 | 39 | 40 | 41 | 43 | 42 | 43 | 44 | 44 | 43 | 37 |