YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 68.90 | 77.23 | 73.37 | 68.42 | 59.27 | 41.88 | 29.29 | 59.77 | e | |||||||
1964 | 24.44 | 26.97 | 35.24 | 45.88 | 59.72 | a | 67.65 | 76.65 | 71.69 | 64.98 | 56.11 | 38.40 | 28.25 | a | 49.66 | |||||||||||
1965 | 31.08 | 32.32 | 37.35 | a | 48.17 | 56.48 | 63.98 | 74.63 | 72.02 | 61.88 | 55.38 | c | 44.18 | 32.45 | 50.83 | |||||||||||
1966 | 24.08 | 26.61 | 41.21 | 49.90 | 62.31 | 69.12 | 77.61 | 73.89 | 65.48 | 53.77 | 43.00 | 28.55 | 51.29 | |||||||||||||
1967 | 23.28 | a | 35.18 | 45.05 | 49.42 | 57.37 | 65.45 | 75.60 | 71.10 | 64.10 | 53.71 | 41.93 | 25.08 | 50.61 | ||||||||||||
1968 | 25.20 | a | 37.47 | 41.40 | 45.43 | 56.81 | 69.43 | 73.39 | 68.87 | 63.28 | 53.29 | 37.38 | 25.43 | a | 49.78 | |||||||||||
1969 | 31.56 | 32.45 | 35.92 | 51.45 | a | 61.11 | 65.80 | 75.24 | 74.63 | 65.38 | 48.10 | 37.78 | 32.24 | 50.97 | ||||||||||||
1970 | 27.58 | 37.86 | 38.15 | 43.62 | 58.89 | 67.30 | 74.00 | 74.00 | 60.38 | 46.82 | 39.32 | 30.34 | 49.85 | |||||||||||||
1971 | 24.76 | 32.88 | 38.73 | 47.90 | 55.35 | 68.40 | 74.45 | b | 71.50 | 62.55 | j | 50.56 | m | 38.98 | i | 26.60 | k | 51.75 | d | |||||||
1972 | 28.38 | k | 34.42 | i | 45.34 | i | 51.15 | j | 60.00 | f | 67.95 | 76.63 | 71.89 | 64.70 | 54.11 | 35.42 | 26.29 | 56.71 | e | |||||||
1973 | 24.31 | 32.52 | a | 38.50 | 45.35 | 56.90 | 66.60 | 73.75 | a | 72.48 | 62.82 | 53.45 | c | 41.18 | 30.73 | a | 49.88 | |||||||||
1974 | 25.16 | 27.20 | 44.60 | 47.84 | b | 61.05 | 70.07 | 73.98 | e | 71.63 | 64.83 | 54.76 | 39.25 | 26.90 | a | 50.61 | ||||||||||
1975 | 23.73 | 29.07 | 37.97 | 44.82 | 54.44 | 64.42 | 73.92 | 70.85 | 63.05 | 53.90 | 37.50 | 29.48 | 48.60 | |||||||||||||
1976 | 27.21 | 38.43 | 39.89 | 49.97 | 60.78 | h | 68.19 | f | 74.73 | c | 70.76 | d | 63.54 | e | 49.12 | g | 41.62 | j | 27.66 | i | 52.08 | e | ||||
1977 | 23.69 | j | 35.26 | i | 37.76 | j | 53.25 | j | 57.40 | j | 72.48 | i | 74.05 | a | 73.12 | a | 66.83 | 54.79 | 41.65 | 32.89 | 57.22 | f | ||||
1978 | 32.21 | 33.35 | a | 44.45 | a | 52.13 | 55.76 | 70.17 | 77.21 | 70.55 | b | 64.98 | a | 57.14 | j | 42.98 | 23.70 | a | 51.59 | a | ||||||
1979 | 24.62 | a | 28.80 | 40.65 | 49.65 | 56.43 | h | 67.85 | 74.35 | a | 72.06 | ----- | z | 58.12 | k | 34.21 | b | 33.24 | 47.27 | c | ||||||
1980 | 33.82 | a | 36.96 | a | 40.15 | 48.20 | 56.32 | 70.00 | f | 75.12 | a | 74.23 | 64.90 | a | 51.32 | a | 42.30 | e | 37.63 | 50.99 | a | |||||
1981 | 35.71 | b | 37.21 | 41.74 | 55.16 | a | 59.95 | a | 71.93 | b | 75.97 | a | 73.76 | 67.33 | a | 53.35 | a | 43.62 | 34.34 | 54.17 | ||||||
1982 | 28.90 | b | 32.16 | 42.36 | b | 48.89 | b | 57.40 | b | 67.88 | 74.38 | a | 72.85 | 64.88 | b | 50.29 | 39.25 | f | 32.09 | c | 52.01 | a | ||||
1983 | 32.15 | 36.32 | 41.48 | a | 45.00 | 55.84 | b | 65.78 | 73.45 | 75.13 | a | 60.77 | b | 52.81 | d | 39.54 | b | 31.96 | c | 50.85 | ||||||
1984 | 27.78 | a | 34.70 | b | 42.38 | a | 45.32 | 63.10 | 67.88 | a | 77.50 | 73.52 | c | 66.16 | b | 47.30 | a | 40.67 | 34.24 | b | 51.71 | |||||
1985 | 32.08 | a | 30.02 | b | 43.24 | b | 51.32 | 59.32 | a | 70.93 | 75.24 | 73.34 | 62.08 | 53.90 | 38.70 | 31.50 | b | 51.81 | ||||||||
1986 | 35.73 | 38.48 | 47.06 | 49.85 | 58.77 | a | 69.95 | 72.15 | 75.63 | ----- | z | 51.56 | 40.91 | a | 33.74 | 52.17 | a | |||||||||
1987 | 28.65 | 36.77 | 39.35 | 52.40 | 59.55 | 70.13 | 73.66 | 71.31 | 65.13 | 56.32 | 41.12 | 30.38 | a | 52.06 | ||||||||||||
1988 | 22.94 | 34.79 | 41.05 | 50.97 | 59.10 | 72.15 | 76.66 | 73.34 | 63.33 | 58.58 | 40.00 | 29.70 | c | 51.88 | ||||||||||||
1989 | 24.69 | 33.38 | 47.50 | 56.78 | 62.02 | 69.30 | 78.05 | 73.79 | 66.95 | 53.63 | 39.88 | 30.39 | 53.03 | |||||||||||||
1990 | 27.61 | 34.80 | 44.97 | 51.85 | 58.60 | 72.97 | 75.35 | a | 72.58 | 71.10 | 54.37 | 42.73 | 25.40 | a | 52.69 | |||||||||||
1991 | 26.73 | 37.34 | 41.44 | 49.38 | 61.95 | 68.58 | 77.13 | 75.44 | 67.03 | 57.18 | 38.37 | 31.31 | 52.66 | |||||||||||||
1992 | 27.84 | 38.52 | 45.71 | 56.37 | 63.11 | 69.72 | 73.82 | 74.74 | 66.93 | 58.87 | 36.72 | 27.05 | 53.28 | |||||||||||||
1993 | 32.94 | 36.91 | 44.85 | 50.58 | 62.10 | j | 68.57 | i | 75.66 | 72.21 | 64.45 | i | 52.56 | 37.70 | 31.65 | 48.34 | c | |||||||||
1994 | 32.35 | 32.75 | 46.95 | a | 51.82 | 62.21 | 73.42 | 78.29 | 77.18 | 67.30 | 52.71 | 38.78 | 35.05 | 54.07 | ||||||||||||
1995 | 33.37 | 42.62 | 44.16 | 48.38 | 56.25 | a | 67.62 | 75.13 | a | 76.79 | 67.40 | a | 52.80 | a | 43.45 | 34.81 | 53.57 | |||||||||
1996 | 30.24 | 40.03 | 43.21 | 50.52 | 62.61 | 71.35 | 77.31 | 74.71 | 61.67 | 53.84 | b | 40.02 | 30.74 | 53.02 | ||||||||||||
1997 | 29.48 | 34.98 | 45.60 | 47.58 | 61.19 | j | 69.52 | 71.98 | g | 71.98 | j | 68.05 | i | 52.82 | i | 41.50 | g | 30.63 | h | 45.43 | g | |||||
1998 | 32.80 | c | 35.07 | f | 41.55 | a | 46.88 | e | 59.05 | j | 65.93 | h | 76.27 | g | 74.34 | f | 69.29 | i | 53.04 | f | 40.92 | 32.68 | i | 40.54 | h | |
1999 | 34.76 | l | 37.70 | a | 47.20 | h | 49.05 | k | 54.94 | o | 69.12 | i | 74.88 | k | 70.86 | i | 63.79 | i | 56.06 | m | 44.84 | k | 30.84 | l | 37.70 | k |
2000 | 35.21 | n | 41.70 | n | 43.80 | d | 53.28 | g | 64.02 | g | 72.31 | l | 77.94 | n | 77.58 | k | 68.85 | j | 55.48 | b | 34.13 | k | 32.67 | m | 49.64 | j |
2001 | 30.15 | k | 35.68 | i | 43.35 | e | 52.15 | g | 62.52 | k | 71.55 | k | 76.20 | k | 73.72 | a | 68.97 | l | 56.05 | 45.33 | g | 29.84 | c | 50.74 | h | |
2002 | 30.64 | c | 32.88 | k | 42.57 | p | 54.79 | f | 61.29 | n | 72.39 | k | 77.58 | 73.90 | j | 64.95 | k | 51.73 | i | 39.42 | 30.76 | 44.60 | h | |||
2003 | 36.22 | b | 35.34 | i | 42.21 | 50.81 | l | 61.90 | g | 70.29 | m | 80.03 | k | 75.78 | b | 64.89 | b | 57.62 | k | 38.63 | k | 32.40 | j | 54.78 | h | |
2004 | 30.93 | b | 31.37 | b | 48.87 | 51.31 | f | 60.86 | i | 69.88 | a | 74.98 | j | 71.36 | b | 63.98 | 52.43 | c | 39.63 | 31.52 | a | 48.89 | c | |||
2005 | 37.45 | a | 37.67 | a | 42.31 | b | 50.76 | i | 60.26 | j | 67.55 | 78.17 | k | 73.35 | h | 67.33 | g | 55.17 | a | 41.86 | i | 30.10 | j | 48.03 | g | |
2006 | 32.74 | 36.58 | i | 41.83 | h | 52.65 | j | 62.55 | i | 72.81 | i | 77.58 | k | 73.59 | h | 60.65 | j | 50.98 | j | 42.48 | i | 30.90 | k | 32.74 | k | |
2007 | 29.07 | k | 36.82 | i | 46.16 | i | 50.81 | i | 60.89 | i | 70.67 | i | 78.64 | j | 75.85 | h | 66.26 | k | 54.89 | i | 44.98 | j | 31.55 | l | ----- | z |
2008 | 24.76 | j | 32.41 | f | 41.67 | j | 48.60 | i | 58.43 | i | 69.07 | i | 76.30 | i | 75.52 | j | 66.48 | i | 54.55 | j | 42.94 | l | 32.67 | j | ----- | z |
2009 | 28.97 | l | 38.61 | i | 45.19 | j | 49.77 | h | 63.76 | j | 68.00 | h | 77.27 | i | 73.95 | k | 67.05 | j | 49.32 | n | 42.84 | k | 26.52 | i | ----- | z |
2010 | 28.63 | l | 31.95 | i | 41.59 | h | 50.77 | h | 54.94 | o | 72.30 | j | 78.07 | j | 73.39 | i | 67.32 | k | 57.45 | k | 39.60 | j | 36.83 | j | ----- | z |
2011 | 26.02 | k | 30.20 | h | 45.09 | i | 50.88 | m | 55.55 | j | 70.10 | j | 77.72 | k | 77.47 | k | 67.55 | i | 54.33 | k | 39.92 | l | 30.29 | j | ----- | z |
2012 | 33.30 | k | 36.83 | i | 45.32 | i | 54.62 | j | 64.02 | i | 75.05 | i | 77.71 | g | 77.11 | i | 67.53 | l | 56.12 | j | 44.67 | j | 31.09 | o | ----- | z |
2013 | 24.85 | k | 31.42 | j | 43.80 | k | 49.80 | j | 61.07 | h | 74.37 | k | 78.40 | a | 74.27 | i | 67.97 | m | 52.66 | i | 40.84 | k | 28.40 | k | 78.40 | k |
2014 | 32.05 | k | 39.08 | j | 44.02 | j | 49.68 | h | 57.38 | k | 71.33 | j | 77.79 | j | 72.92 | k | 69.07 | h | 55.29 | g | 40.16 | k | 36.25 | k | ----- | z |
2015 | 36.21 | l | 39.80 | h | 47.43 | i | 51.95 | h | 58.37 | l | 72.95 | i | 73.89 | i | 74.55 | l | 69.84 | k | 59.21 | j | 41.58 | k | 29.67 | j | ----- | z |
2016 | 26.94 | o | 35.83 | h | 45.17 | h | 51.14 | i | 57.73 | e | 75.12 | d | 76.77 | g | 72.47 | k | 66.31 | i | 56.20 | k | 46.34 | h | 32.28 | h | 66.42 | j |
2017 | 32.52 | j | 41.45 | f | 48.48 | f | 51.17 | g | 58.32 | i | 74.27 | h | 79.74 | l | 75.02 | h | 68.03 | j | 55.53 | l | 47.25 | j | 34.33 | k | ----- | z |
2018 | 34.07 | j | 38.68 | i | 43.50 | i | 54.35 | j | 63.95 | i | 74.98 | i | 79.29 | j | 74.73 | t | 69.32 | k | 55.18 | l | 38.35 | j | 33.50 | r | ----- | z |
2019 | 29.18 | k | 31.73 | m | 45.98 | i | 53.15 | g | 56.00 | j | 69.50 | k | 78.05 | j | 77.05 | i | 67.39 | l | 51.34 | l | 42.25 | l | 32.61 | l | ----- | z |
2020 | 32.10 | j | 33.95 | j | 46.43 | j | 52.58 | r | 64.67 | m | 73.07 | h | 77.24 | j | 78.45 | j | 66.95 | i | 55.83 | j | 45.05 | j | 30.36 | j | ----- | z |
2021 | 29.76 | l | 36.76 | i | 41.89 | h | 52.98 | h | 61.45 | l | 74.98 | i | 79.10 | j | 75.69 | j | 68.65 | j | 53.33 | k | 46.05 | j | 35.05 | j | ----- | z |
2022 | 33.71 | l | 34.17 | j | 42.93 | h | 52.31 | i | 60.67 | k | 70.40 | i | 77.38 | k | 74.22 | h | 69.60 | i | 52.19 | g | 37.83 | d | 32.30 | i | 37.83 | k |
2023 | 30.27 | a | 31.87 | a | 39.44 | 49.48 | a | 61.79 | 67.75 | 80.29 | 75.80 | a | 68.00 | a | 57.66 | 43.15 | 34.78 | a | 53.36 | |||||||
2024 | 30.87 | 38.33 | 44.30 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.83 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.35 | 34.51 | 42.20 | 49.36 | 59.06 | 68.93 | 75.64 | 73.20 | 64.99 | 53.88 | 40.04 | 30.66 | 51.68 | |||||||||||||
S.D. | 4.00 | 3.85 | 3.18 | 3.17 | 2.60 | 2.47 | 1.81 | 1.87 | 2.36 | 2.90 | 2.40 | 3.20 | 1.54 | |||||||||||||
SKEW | 0.09 | -0.34 | -0.12 | 0.41 | 0.04 | 0.27 | 0.40 | 0.09 | 0.18 | -0.48 | -0.27 | -0.24 | -0.10 | |||||||||||||
MAX | 37.45 | 42.62 | 48.87 | 56.78 | 63.11 | 75.12 | 80.29 | 77.18 | 71.10 | 59.27 | 44.18 | 37.63 | 54.17 | |||||||||||||
MIN | 22.94 | 26.61 | 35.24 | 43.62 | 54.44 | 63.98 | 72.15 | 68.87 | 60.38 | 46.82 | 34.21 | 23.70 | 48.60 | |||||||||||||
YRS | 40 | 37 | 40 | 34 | 30 | 35 | 37 | 38 | 33 | 35 | 36 | 36 | 24 |