YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.94 | g | 60.90 | o | 55.71 | e | 41.80 | e | 40.87 | 46.13 | i | |
1959 | 38.34 | 39.82 | 45.11 | 52.73 | 54.00 | 65.57 | 73.27 | 68.63 | 61.32 | 53.52 | 40.85 | 35.13 | 52.36 | |||||||||||||
1960 | 28.23 | 39.02 | 45.39 | 51.82 | 54.92 | 66.93 | 74.47 | 68.10 | 63.65 | 53.26 | 41.96 | d | 34.37 | 51.84 | ||||||||||||
1961 | 40.26 | 45.05 | 46.13 | 50.72 | 56.66 | 69.72 | 72.92 | 74.74 | 60.03 | 51.19 | 38.43 | 37.11 | 53.58 | |||||||||||||
1962 | 32.84 | 38.95 | 43.21 | 54.00 | 53.98 | 63.83 | 70.06 | 68.05 | 64.43 | 51.02 | 45.05 | 37.85 | 51.94 | |||||||||||||
1963 | 30.29 | 44.88 | 44.52 | 47.37 | 57.69 | 62.73 | 67.98 | 69.48 | 67.37 | 53.82 | 44.10 | 34.02 | 52.02 | |||||||||||||
1964 | 38.63 | 38.98 | 42.00 | 48.33 | 55.97 | 63.97 | a | 71.73 | 68.52 | 61.53 | 52.68 | 39.43 | a | 34.22 | a | 51.33 | ||||||||||
1965 | 38.05 | 42.96 | 43.78 | a | 52.88 | 56.16 | 65.08 | 71.95 | 69.65 | ----- | z | 53.58 | k | 44.92 | 39.06 | o | 53.94 | c | ||||||||
1966 | 36.73 | t | 39.78 | a | 45.37 | 51.85 | 59.97 | 63.63 | 69.76 | 70.24 | 65.45 | 53.82 | 44.55 | 39.26 | 54.88 | a | ||||||||||
1967 | 41.50 | 43.55 | 43.50 | 45.47 | 58.24 | 66.47 | 72.77 | 75.19 | 68.15 | 54.44 | 44.12 | 35.82 | a | 54.10 | ||||||||||||
1968 | 37.24 | 43.34 | 48.02 | 49.47 | 57.52 | 65.50 | 73.55 | 68.40 | 63.92 | 51.40 | 42.73 | 34.79 | 52.99 | |||||||||||||
1969 | 26.21 | 35.73 | 44.21 | 49.67 | 61.39 | 67.60 | 69.90 | 69.18 | 63.95 | 49.23 | 43.60 | 35.98 | 51.39 | |||||||||||||
1970 | 35.68 | 41.43 | a | 44.85 | 45.83 | 58.66 | 68.30 | 72.40 | 71.34 | 58.85 | 50.29 | 41.92 | 37.08 | 52.22 | ||||||||||||
1971 | 38.95 | 39.43 | 41.16 | 48.69 | a | 58.95 | 62.25 | 73.03 | 74.98 | 60.23 | 50.00 | 42.37 | 37.47 | 52.29 | ||||||||||||
1972 | 35.24 | 39.98 | 47.84 | 47.40 | 60.61 | 67.10 | 72.50 | 72.00 | 59.78 | 50.90 | 44.00 | 29.37 | 52.23 | |||||||||||||
1973 | 33.37 | 40.55 | 43.73 | a | 51.27 | 60.53 | 65.98 | 73.13 | 69.27 | a | 63.30 | 52.95 | 41.58 | 41.56 | 53.10 | |||||||||||
1974 | 31.21 | 42.12 | 45.37 | 50.53 | 55.63 | 69.52 | 71.71 | b | 72.10 | 65.82 | 52.85 | 44.52 | 38.98 | 53.36 | ||||||||||||
1975 | 39.40 | 36.71 | 41.63 | 45.17 | 56.97 | 63.15 | 74.06 | 67.63 | 64.80 | 53.27 | 42.38 | 39.98 | 52.10 | |||||||||||||
1976 | 38.97 | 39.31 | 42.39 | 48.62 | 58.90 | 61.57 | 72.32 | 68.94 | 67.02 | 53.52 | 45.03 | a | 34.69 | 52.61 | ||||||||||||
1977 | 31.05 | 42.12 | 43.66 | 54.67 | 53.97 | 68.45 | 69.92 | a | 73.72 | a | 60.72 | a | 52.94 | 39.80 | 38.73 | 52.48 | ||||||||||
1978 | 36.13 | 42.59 | 48.24 | 50.03 | 54.81 | 65.82 | 71.03 | 69.31 | 60.33 | 54.15 | 35.27 | 32.55 | 51.69 | |||||||||||||
1979 | 18.38 | a | 38.82 | 47.27 | 50.37 | 59.68 | 66.25 | 72.40 | 70.13 | 66.22 | a | 60.59 | o | 38.50 | h | 41.00 | 53.05 | b | ||||||||
1980 | 32.55 | b | 39.60 | ----- | z | 52.50 | 57.40 | 61.57 | 72.24 | ----- | z | 63.52 | b | 52.62 | a | 44.43 | 44.53 | m | 52.94 | c | ||||||
1981 | 38.55 | 40.89 | 46.37 | 50.92 | 57.48 | 63.42 | 69.81 | 73.69 | 62.90 | i | 52.08 | a | 44.10 | 38.03 | 52.30 | a | ||||||||||
1982 | 34.72 | a | 38.98 | 44.48 | 47.70 | 57.18 | 67.02 | a | 70.68 | 70.63 | a | 61.23 | 51.45 | 38.68 | 35.84 | 51.55 | ||||||||||
1983 | 40.06 | 43.12 | 47.68 | 49.41 | a | 59.19 | 62.93 | a | 67.88 | b | 72.45 | 61.30 | j | 53.84 | 44.62 | a | 27.62 | a | 51.71 | a | ||||||
1984 | 35.22 | a | 42.27 | a | 47.66 | 48.43 | a | 56.22 | b | 62.67 | 72.94 | 72.39 | 61.93 | 49.42 | 41.67 | 33.58 | a | 52.03 | ||||||||
1985 | 31.71 | b | 38.27 | 43.48 | 53.85 | 58.55 | 66.70 | 77.03 | 69.94 | 58.19 | a | 52.03 | 31.52 | 24.48 | a | 50.48 | ||||||||||
1986 | 37.53 | 40.57 | 50.18 | 49.00 | a | 59.43 | a | 70.00 | 68.08 | 74.92 | a | 58.70 | 53.77 | 43.81 | a | 35.58 | a | 53.46 | ||||||||
1987 | 34.40 | 41.18 | 47.32 | 56.42 | 62.03 | 69.43 | a | 69.67 | b | 71.39 | 66.50 | 55.97 | 43.23 | 35.76 | 54.44 | |||||||||||
1988 | 33.57 | a | 41.79 | a | 45.52 | a | 54.36 | a | 57.66 | c | 65.40 | 72.53 | 70.98 | 63.57 | 60.79 | b | 43.90 | 36.35 | 53.87 | |||||||
1989 | 40.98 | d | 30.38 | 44.87 | 55.22 | 57.98 | 67.33 | a | 70.80 | a | 69.08 | 64.34 | a | 53.52 | b | 45.86 | b | 35.85 | 53.02 | |||||||
1990 | 41.62 | a | 40.24 | a | 47.90 | a | 57.47 | 57.63 | a | 67.03 | 75.56 | 73.74 | 69.29 | a | 53.32 | a | 46.10 | 29.40 | 54.94 | |||||||
1991 | 35.32 | 47.23 | 45.22 | a | 50.93 | 56.82 | 63.08 | 74.95 | a | 75.40 | a | 67.72 | c | 56.16 | b | 44.75 | 38.95 | a | 54.71 | |||||||
1992 | 41.39 | 45.48 | a | 50.27 | 54.97 | a | 65.02 | 71.72 | 73.68 | a | 74.06 | 65.57 | 55.61 | 43.17 | 32.84 | b | 56.15 | |||||||||
1993 | 27.63 | a | 32.11 | a | 45.13 | 50.50 | a | 63.35 | 64.38 | a | 65.66 | 69.76 | 65.30 | 56.44 | 34.88 | 37.24 | 51.03 | |||||||||
1994 | 40.50 | 38.25 | 47.98 | 55.18 | 62.03 | 66.75 | 75.55 | a | 71.92 | 68.20 | 53.37 | 40.93 | a | 38.47 | a | 54.93 | ||||||||||
1995 | 36.87 | 45.50 | 45.19 | 50.00 | a | 59.61 | 64.70 | 72.39 | 68.84 | b | 66.57 | b | 52.31 | 47.28 | 36.88 | a | 53.85 | |||||||||
1996 | 37.57 | a | 37.41 | a | 46.40 | 53.27 | 55.92 | 65.86 | a | 74.37 | 72.55 | a | 61.73 | 53.03 | 41.93 | 36.38 | a | 53.04 | ||||||||
1997 | 34.18 | 39.21 | 47.79 | 50.78 | 63.02 | b | 61.00 | g | 69.84 | f | 73.96 | c | 66.00 | 53.00 | 44.64 | a | 35.32 | a | 50.79 | b | ||||||
1998 | 38.63 | 43.76 | a | 47.52 | 51.77 | 57.32 | 66.43 | 77.55 | b | 75.00 | a | ----- | z | 53.13 | a | 46.02 | 39.20 | a | 54.21 | a | ||||||
1999 | 40.44 | 42.57 | 44.43 | a | 49.11 | c | 56.48 | a | 65.17 | c | 73.08 | 75.37 | 64.53 | 55.00 | a | 47.95 | 39.84 | 54.50 | ||||||||
2000 | 35.43 | j | 41.69 | 45.61 | 55.58 | 60.00 | 68.50 | a | 73.13 | a | 73.03 | a | 66.29 | a | 54.80 | a | 38.28 | 35.32 | a | 55.66 | a | |||||
2001 | 36.13 | 39.29 | 47.47 | 49.33 | c | 63.55 | b | 64.34 | b | 72.60 | b | 75.47 | 68.62 | b | 54.80 | a | 44.32 | b | 37.05 | a | 54.41 | |||||
2002 | 38.85 | 42.57 | a | 43.10 | a | 51.95 | a | 56.02 | b | 65.52 | a | 73.58 | f | 68.90 | f | 64.22 | e | 49.33 | e | 40.87 | c | 38.15 | a | 49.06 | b | |
2003 | 41.17 | d | 38.85 | e | 47.61 | c | 47.86 | e | 57.29 | g | 67.50 | h | 76.08 | f | 73.00 | f | 66.74 | g | 58.38 | g | 39.34 | e | 37.12 | c | 41.99 | f |
2004 | 29.91 | b | 40.24 | d | 48.84 | i | 51.00 | h | 56.94 | d | 66.70 | c | 74.13 | e | 72.93 | d | 62.37 | g | 53.62 | e | 41.85 | c | 37.91 | h | 54.54 | d |
2005 | 35.80 | f | 38.42 | c | 47.38 | e | 49.90 | j | 58.31 | e | 60.60 | a | 72.61 | 72.45 | a | 61.68 | 53.08 | a | 39.28 | 27.90 | a | 53.17 | b | |||
2006 | 40.08 | 35.46 | 41.47 | 50.17 | a | 58.24 | 65.92 | 74.63 | 70.15 | 62.98 | a | 50.68 | 42.40 | 34.44 | 52.22 | |||||||||||
2007 | 31.90 | a | 38.41 | 47.45 | 48.22 | 58.68 | 64.62 | 75.73 | 69.95 | a | 61.98 | b | 50.05 | a | 40.04 | b | 37.23 | 52.02 | ||||||||
2008 | 32.33 | b | 41.30 | d | 41.45 | a | 44.78 | 57.56 | 62.97 | a | 73.18 | 71.58 | 63.43 | 51.73 | 44.63 | 30.13 | a | 51.26 | ||||||||
2009 | 34.65 | 36.93 | 41.00 | 48.63 | 58.19 | 66.02 | a | 75.10 | 72.65 | 66.79 | a | 48.18 | 42.10 | 30.02 | 51.69 | |||||||||||
2010 | 40.19 | b | 40.39 | 44.26 | 46.84 | a | 53.77 | a | 61.12 | 72.10 | 70.27 | 63.34 | a | 53.02 | 41.12 | a | 34.74 | 51.76 | ||||||||
2011 | 37.24 | 37.26 | a | 43.73 | 45.85 | 52.94 | 61.62 | a | 68.00 | 72.58 | 67.10 | 53.00 | 41.68 | 33.81 | 51.23 | |||||||||||
2012 | 37.79 | 37.98 | 43.03 | 51.13 | 56.97 | 62.38 | 73.06 | 73.34 | 65.73 | 52.61 | 44.18 | 36.71 | 52.91 | |||||||||||||
2013 | 31.08 | 38.68 | 45.05 | 50.60 | 59.26 | 65.87 | 75.89 | 73.77 | 65.20 | 48.81 | 39.35 | 30.24 | 51.98 | |||||||||||||
2014 | 35.32 | 33.11 | 45.76 | 50.79 | a | 60.34 | 64.43 | 76.76 | 73.89 | 65.95 | 57.42 | 37.43 | 36.69 | 53.16 | ||||||||||||
2015 | 38.60 | 44.12 | 48.97 | 50.15 | 60.11 | 72.23 | 74.56 | 73.60 | 62.05 | 57.24 | 39.05 | 36.79 | 54.79 | |||||||||||||
2016 | 34.65 | 42.71 | 45.39 | 56.05 | 60.08 | a | 67.95 | b | 70.73 | 72.84 | 62.47 | 52.26 | 47.03 | 28.25 | a | 53.37 | ||||||||||
2017 | 23.87 | 36.79 | 45.60 | a | 47.75 | 58.98 | b | 67.09 | a | 75.73 | 75.57 | b | 64.59 | a | 50.17 | a | 43.73 | b | 33.65 | 51.96 | ||||||
2018 | 39.27 | 38.23 | 43.13 | 50.57 | 63.19 | 65.93 | 76.02 | 73.47 | 61.85 | 51.44 | 40.59 | b | 36.85 | a | 53.38 | |||||||||||
2019 | 35.89 | c | 31.26 | a | 34.71 | g | 51.25 | 59.95 | k | 65.61 | b | 70.53 | 73.02 | f | 62.14 | e | 46.58 | g | 40.85 | m | 34.08 | a | 50.11 | e | ||
2020 | 40.80 | d | 40.95 | g | 42.61 | d | 51.61 | b | 58.65 | e | 65.02 | c | 72.17 | d | 73.00 | a | 65.81 | c | 57.30 | h | 42.54 | d | 35.60 | f | 56.91 | c |
2021 | 37.54 | h | 35.21 | i | 44.29 | e | 52.79 | k | 59.58 | f | 72.36 | b | 78.00 | 72.79 | 65.10 | 52.27 | 44.52 | a | 36.29 | 58.20 | d | |||||
2022 | 35.66 | b | 37.90 | b | 47.03 | a | 46.02 | a | 54.77 | a | 64.66 | a | 76.10 | 77.74 | b | 67.05 | a | 57.42 | a | 36.70 | 29.93 | b | 52.58 | |||
2023 | 34.78 | b | 35.52 | 39.02 | a | 48.23 | b | 62.31 | b | 67.05 | b | 75.95 | a | 75.22 | b | 64.56 | d | 53.25 | a | 41.85 | c | 38.31 | b | 53.00 | ||
2024 | 31.85 | 38.45 | a | 43.33 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.88 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 35.57 | 39.84 | 45.18 | 50.52 | 58.30 | 65.71 | 72.77 | 72.00 | 64.05 | 53.00 | 42.20 | 35.36 | 52.80 | |||||||||||||
S.D. | 4.62 | 3.35 | 2.35 | 2.97 | 2.64 | 2.63 | 2.58 | 2.42 | 2.67 | 2.33 | 3.09 | 3.59 | 1.23 | |||||||||||||
SKEW | -1.20 | -0.49 | -0.12 | 0.25 | 0.31 | 0.40 | -0.31 | 0.02 | -0.23 | 0.54 | -0.92 | -0.86 | 0.55 | |||||||||||||
MAX | 41.62 | 47.23 | 50.27 | 57.47 | 65.02 | 72.36 | 78.00 | 77.74 | 69.29 | 60.79 | 47.95 | 41.56 | 56.15 | |||||||||||||
MIN | 18.38 | 30.38 | 39.02 | 44.78 | 52.94 | 60.60 | 65.66 | 67.63 | 58.19 | 48.18 | 31.52 | 24.48 | 50.48 | |||||||||||||
YRS | 62 | 64 | 63 | 62 | 62 | 63 | 62 | 61 | 59 | 61 | 64 | 62 | 49 |