YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.65 | u | 65.67 | a | 59.65 | 50.48 | 43.78 | 37.95 | 51.51 | g | ||||
1968 | 37.87 | 43.93 | a | 45.66 | 45.08 | 52.24 | 56.73 | b | 61.98 | 59.19 | 57.47 | 48.44 | 43.40 | 35.50 | 48.96 | |||||||||||
1969 | 30.58 | 37.00 | 42.74 | 46.15 | 54.23 | 62.17 | 59.45 | 58.03 | 56.83 | 48.26 | 44.42 | 40.05 | 48.33 | |||||||||||||
1970 | 38.11 | 43.12 | 43.23 | 43.15 | 51.16 | 58.97 | 61.13 | 60.84 | 54.05 | 48.40 | 42.78 | 37.61 | 48.55 | |||||||||||||
1971 | 36.98 | a | 39.79 | 38.95 | 45.30 | 52.57 | a | 53.57 | 62.72 | a | 64.66 | 54.05 | 48.21 | 42.42 | 36.18 | a | 47.95 | |||||||||
1972 | 35.45 | a | 39.59 | 44.66 | 43.13 | 54.06 | 57.42 | 63.83 | a | 62.63 | 54.28 | a | 48.32 | 42.93 | 34.59 | c | 48.41 | |||||||||
1973 | 35.10 | 41.77 | b | 42.62 | a | 47.50 | a | 52.15 | d | 57.30 | 61.35 | 58.08 | a | 57.95 | 49.08 | a | 40.00 | a | 41.57 | a | 48.71 | |||||
1974 | 33.17 | a | 39.36 | 42.23 | 45.80 | 48.84 | 56.59 | a | 59.45 | 62.48 | a | 60.92 | 50.18 | 43.88 | 39.97 | 48.57 | ||||||||||
1975 | 38.24 | 37.34 | 40.15 | 42.17 | 51.27 | 55.38 | 61.32 | a | 58.32 | 57.98 | 48.82 | 41.20 | 39.61 | 47.65 | ||||||||||||
1976 | 39.50 | 38.66 | 40.61 | 44.98 | 52.10 | 54.68 | 59.61 | 60.16 | 58.74 | a | 50.60 | 44.70 | 37.76 | 48.51 | ||||||||||||
1977 | 35.12 | a | 42.25 | 41.00 | b | 49.20 | 48.95 | 58.40 | 59.87 | 65.31 | 56.42 | 49.60 | 39.92 | 40.35 | 48.87 | |||||||||||
1978 | 39.73 | 43.39 | a | 46.94 | 48.27 | b | 50.97 | 60.33 | a | 62.45 | a | 61.77 | a | 57.43 | 51.26 | 36.10 | 33.11 | 49.31 | ||||||||
1979 | 28.79 | 37.72 | a | 45.20 | a | 47.37 | 53.68 | a | 57.38 | 62.68 | 61.44 | 59.53 | a | 52.95 | a | 41.72 | 42.15 | 49.22 | ||||||||
1980 | 32.69 | 41.34 | d | 43.00 | 49.48 | a | 51.81 | 54.20 | 61.88 | a | 59.29 | 56.95 | 50.50 | 43.90 | 39.84 | 48.74 | ||||||||||
1981 | 40.24 | 41.78 | a | 45.10 | 46.80 | 50.84 | 55.10 | a | 60.06 | 65.29 | 57.59 | b | 49.05 | 44.13 | 38.98 | 49.58 | ||||||||||
1982 | 34.19 | 39.00 | a | 42.37 | a | 44.11 | c | 51.32 | a | 59.13 | 60.25 | a | 61.48 | a | 58.35 | 50.71 | 40.50 | a | 37.85 | 48.27 | ||||||
1983 | 40.39 | 43.85 | a | 46.32 | a | 47.88 | 55.44 | 56.32 | 60.40 | 62.02 | 55.50 | 49.81 | b | 45.02 | a | 32.62 | a | 49.63 | ||||||||
1984 | 39.13 | a | 42.38 | c | 47.57 | c | 45.70 | b | 49.97 | b | 56.43 | c | 61.37 | 60.98 | a | 57.28 | a | 48.22 | a | 42.37 | 34.86 | b | 48.85 | |||
1985 | 34.82 | 37.12 | 41.63 | 49.19 | a | 51.93 | a | 57.33 | a | 64.98 | 61.16 | 54.65 | 48.11 | 33.70 | 32.31 | 47.25 | ||||||||||
1986 | 40.11 | 41.05 | 47.82 | 46.33 | 52.23 | 60.35 | 59.15 | 65.58 | 56.02 | 52.97 | a | 44.20 | 38.28 | a | 50.34 | |||||||||||
1987 | 37.60 | a | 41.80 | c | 44.11 | 49.04 | b | 53.90 | b | 57.32 | b | 59.65 | a | 60.46 | c | 58.73 | 51.14 | b | 43.59 | b | 34.22 | a | 49.30 | |||
1988 | 36.95 | b | 41.28 | 42.37 | ----- | z | 50.16 | 54.88 | b | 60.23 | a | 59.70 | a | 54.95 | b | 53.92 | 42.16 | a | 37.23 | 48.53 | a | |||||
1989 | 38.17 | a | 31.04 | 41.26 | 49.42 | 51.42 | 57.85 | 58.16 | 61.40 | b | 57.61 | b | 49.13 | a | 44.02 | 39.03 | b | 48.21 | ||||||||
1990 | 39.02 | b | 35.20 | 44.83 | b | 50.47 | a | 51.27 | a | 56.67 | d | 63.38 | b | 62.93 | a | 60.62 | 47.45 | a | 42.95 | 31.36 | c | 48.84 | ||||
1991 | 36.10 | 45.93 | 41.06 | 46.43 | 49.61 | 53.70 | 61.39 | 62.65 | a | 59.18 | 48.71 | 43.10 | a | 39.03 | 48.91 | |||||||||||
1992 | 40.07 | b | 45.34 | 48.06 | 50.45 | a | 55.52 | 59.28 | 63.06 | 62.31 | 55.70 | 50.39 | 42.53 | a | 35.79 | 50.71 | ||||||||||
1993 | 32.88 | c | 35.54 | c | 44.74 | 46.79 | a | 56.28 | a | 56.47 | a | 57.71 | 61.31 | b | 58.02 | 52.47 | 37.07 | 37.30 | a | 48.05 | ||||||
1994 | 41.37 | 36.88 | c | 45.27 | 48.85 | 52.76 | 54.80 | 62.05 | 60.60 | a | 59.57 | 47.14 | b | 37.95 | a | 37.65 | a | 48.74 | ||||||||
1995 | 39.90 | a | 42.68 | 42.63 | a | 45.74 | a | 53.93 | a | 56.65 | 62.45 | 58.71 | 61.18 | 49.18 | a | 45.75 | 38.61 | 49.79 | ||||||||
1996 | 38.77 | 37.95 | a | 43.78 | b | 48.78 | 48.80 | c | 55.31 | a | 62.84 | b | 61.84 | 54.95 | a | 48.47 | a | 41.69 | c | 37.88 | a | 48.42 | ||||
1997 | 37.53 | 39.70 | 42.58 | a | 45.98 | 55.50 | a | 55.88 | a | 59.92 | a | 63.71 | b | 59.38 | a | 49.28 | a | 44.69 | a | 37.13 | a | 49.27 | ||||
1998 | 39.35 | a | 42.21 | 44.39 | 46.19 | a | 51.33 | a | 58.12 | 64.87 | 61.75 | a | 58.95 | a | 49.15 | 44.13 | 36.21 | 49.72 | ||||||||
1999 | 38.66 | 39.06 | b | 41.22 | a | 43.95 | a | 48.40 | 55.23 | 59.27 | a | 62.11 | 55.32 | 47.94 | 45.24 | a | 39.77 | a | 48.01 | |||||||
2000 | 36.13 | a | 39.69 | 41.48 | 48.33 | a | 50.93 | a | 57.57 | 59.33 | a | 58.25 | a | 56.18 | 47.97 | 38.08 | 37.77 | a | 47.64 | |||||||
2001 | 37.87 | a | 37.23 | 43.40 | 44.40 | a | 52.40 | 53.62 | 58.50 | a | 61.98 | a | 57.32 | 47.08 | 43.74 | a | 37.42 | a | 47.91 | |||||||
2002 | 37.89 | 39.39 | 39.97 | 46.07 | 49.10 | b | 57.28 | 62.08 | a | 60.48 | a | 56.02 | a | 47.05 | 42.46 | c | 39.62 | c | 48.12 | |||||||
2003 | 41.95 | a | 39.48 | 44.82 | 45.83 | 50.85 | a | 58.05 | 62.05 | 61.07 | a | 58.58 | 52.24 | b | 38.83 | 38.45 | 49.35 | |||||||||
2004 | 36.19 | 40.60 | 45.11 | 48.75 | 52.71 | 58.26 | a | 63.22 | a | 64.05 | c | 55.75 | 50.90 | 41.86 | a | 39.09 | b | 49.71 | ||||||||
2005 | 39.27 | 39.26 | a | 45.48 | 47.33 | 54.28 | a | 55.69 | a | 60.85 | a | 62.10 | a | 53.90 | 50.95 | 39.78 | 37.26 | b | 48.85 | |||||||
2006 | 41.29 | 36.06 | b | 41.52 | a | 46.42 | ----- | z | 57.63 | 61.45 | a | 59.45 | b | 57.98 | f | 47.48 | h | 41.41 | h | 38.56 | f | 49.12 | e | |||
2007 | 34.76 | d | 41.87 | b | 44.59 | i | 46.63 | g | 52.00 | f | 55.31 | f | 62.50 | g | 59.98 | h | 54.81 | d | 47.93 | i | 41.34 | h | 36.59 | h | 43.81 | i |
2008 | 34.40 | g | 40.54 | c | 40.22 | d | 42.39 | b | 52.31 | b | 55.00 | c | 61.87 | e | 62.71 | c | 57.00 | d | 48.57 | h | 44.18 | k | 33.75 | k | 51.51 | d |
2009 | 35.53 | l | 38.30 | e | 39.91 | d | 46.40 | e | 51.58 | f | 57.29 | f | 64.56 | ----- | z | 57.50 | 48.61 | 42.48 | 32.32 | 46.26 | d | |||||
2010 | 42.63 | 43.11 | 43.53 | 45.47 | 45.35 | a | 54.34 | a | 61.05 | 61.48 | a | 59.05 | 49.87 | 40.72 | 39.63 | 48.85 | ||||||||||
2011 | 38.42 | 36.32 | 42.23 | 42.80 | 48.16 | 55.48 | 60.03 | 62.11 | 61.02 | 50.63 | 41.25 | 36.82 | 47.94 | |||||||||||||
2012 | 38.08 | 41.90 | 43.02 | 49.22 | 51.87 | 55.40 | 62.00 | 63.19 | 57.32 | 49.34 | 44.43 | 38.60 | 49.53 | |||||||||||||
2013 | 35.18 | 40.50 | 42.23 | g | 46.95 | a | 54.40 | 59.15 | 62.71 | 63.56 | 59.57 | 48.97 | 42.12 | 32.92 | 49.64 | a | ||||||||||
2014 | 39.34 | 36.30 | 44.90 | 48.35 | 54.55 | 58.37 | 64.92 | 65.03 | 60.13 | 55.00 | 41.73 | 41.74 | 50.86 | |||||||||||||
2015 | 41.90 | 45.66 | 48.11 | 46.37 | 55.66 | 61.47 | 65.92 | 64.97 | 57.32 | 55.16 | 40.47 | 40.15 | 51.93 | |||||||||||||
2016 | 40.65 | 44.91 | a | 45.53 | 52.50 | 55.81 | 59.00 | 62.23 | 64.24 | 57.22 | 51.84 | 48.22 | 34.00 | 51.34 | ||||||||||||
2017 | 33.05 | 39.43 | 44.03 | 45.95 | 55.50 | 59.78 | 63.13 | 66.48 | 60.62 | 49.53 | 44.00 | 36.23 | 49.81 | |||||||||||||
2018 | 42.06 | 38.34 | 42.48 | 48.00 | 56.52 | 58.87 | 65.61 | 64.02 | 56.65 | 50.58 | 43.80 | b | 39.58 | 50.54 | ||||||||||||
2019 | 40.47 | b | 34.98 | 42.65 | 48.21 | a | 56.32 | 58.68 | 62.19 | 64.37 | 57.75 | 45.79 | 41.82 | 39.98 | 49.43 | |||||||||||
2020 | 41.81 | 40.33 | 41.74 | 48.53 | 54.82 | 58.70 | 62.13 | a | 62.76 | 61.55 | 51.42 | 41.82 | 40.26 | 50.49 | ||||||||||||
2021 | 41.15 | 38.29 | 41.76 | 47.98 | 52.79 | 62.52 | 64.56 | 63.58 | 57.45 | 48.18 | 45.48 | 36.24 | 50.00 | |||||||||||||
2022 | 39.11 | 40.59 | 44.82 | 43.52 | 50.15 | 58.13 | 65.39 | 66.82 | 60.33 | 55.08 | 38.57 | 38.44 | 50.08 | |||||||||||||
2023 | 39.39 | 37.07 | 40.23 | 46.63 | 56.90 | 58.28 | 63.66 | 66.18 | 56.68 | 51.23 | 41.43 | 41.82 | 49.96 | |||||||||||||
2024 | 38.45 | 41.66 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.05 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.88 | 39.94 | 43.35 | 46.78 | 52.38 | 57.24 | 61.79 | 62.23 | 57.60 | 49.92 | 42.20 | 37.61 | 49.12 | |||||||||||||
S.D. | 3.01 | 2.97 | 2.26 | 2.21 | 2.53 | 2.12 | 1.99 | 2.26 | 2.01 | 2.09 | 2.60 | 2.63 | 1.00 | |||||||||||||
SKEW | -0.83 | -0.23 | 0.28 | -0.05 | -0.23 | 0.33 | 0.14 | 0.05 | 0.04 | 0.76 | -0.87 | -0.58 | 0.58 | |||||||||||||
MAX | 42.63 | 45.93 | 48.11 | 52.50 | 56.90 | 62.52 | 65.92 | 66.82 | 61.55 | 55.16 | 48.22 | 42.15 | 51.93 | |||||||||||||
MIN | 28.79 | 31.04 | 38.95 | 42.17 | 45.35 | 53.57 | 57.71 | 58.03 | 53.90 | 45.79 | 33.70 | 31.36 | 47.25 | |||||||||||||
YRS | 55 | 57 | 54 | 54 | 53 | 54 | 55 | 55 | 56 | 54 | 54 | 54 | 50 |