YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.90 | 69.87 | 61.61 | 45.97 | 34.23 | 57.92 | g | |||||
1949 | 28.06 | 38.46 | 45.07 | b | 64.57 | b | 63.68 | c | 73.24 | a | 82.48 | d | 79.96 | c | 75.86 | a | 58.96 | d | 59.07 | b | 39.68 | 59.09 | ||||
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.17 | g | 59.03 | 44.61 | 51.82 | j | ||
1960 | 37.36 | c | 43.18 | g | 52.74 | h | 53.80 | e | 60.19 | 80.72 | a | 88.34 | b | 82.35 | 79.47 | 63.87 | 45.23 | 41.48 | f | 65.71 | c | |||||
1961 | 48.26 | 44.67 | g | 46.70 | a | 56.30 | 61.34 | b | 79.03 | 85.06 | 84.39 | 70.57 | b | 61.87 | 47.72 | a | 38.52 | 61.80 | a | |||||||
1962 | 37.33 | a | 40.52 | a | 44.26 | 61.67 | 58.68 | 74.03 | a | 82.61 | 79.74 | 77.90 | 61.84 | 51.00 | 45.43 | a | 59.58 | |||||||||
1963 | 43.67 | a | 51.46 | 45.97 | a | 46.80 | 65.52 | 69.53 | 76.48 | 79.45 | 77.27 | 62.00 | 47.03 | 44.16 | 59.11 | |||||||||||
1964 | ----- | z | ----- | z | 43.97 | 53.62 | a | 59.77 | 66.47 | 80.04 | c | 80.33 | a | 72.73 | 68.87 | 45.34 | a | 39.74 | 61.09 | b | ||||||
1965 | 39.58 | 45.12 | b | 52.30 | a | 53.60 | 61.97 | 70.33 | 80.97 | 76.06 | 70.53 | 70.52 | 48.97 | 39.26 | 59.10 | |||||||||||
1966 | 39.74 | 39.86 | 49.52 | 63.07 | 72.16 | 71.21 | a | 80.63 | a | 83.93 | b | 76.17 | a | 65.58 | 47.13 | 41.55 | 60.88 | |||||||||
1967 | 40.43 | a | 48.61 | 45.48 | 43.97 | 66.19 | 72.40 | 86.39 | 88.77 | 80.33 | 63.30 | a | 53.17 | a | 36.70 | a | 60.48 | |||||||||
1968 | 40.29 | 48.86 | 53.26 | 57.23 | 64.19 | 75.27 | 87.23 | 74.84 | 75.60 | 61.77 | 47.00 | 36.65 | 60.18 | |||||||||||||
1969 | 36.58 | 38.18 | 47.74 | 55.60 | 69.52 | 71.80 | 83.35 | 84.13 | 77.30 | 56.00 | 53.33 | 42.61 | 59.68 | |||||||||||||
1970 | 40.39 | 48.79 | 48.48 | 50.83 | 67.52 | 75.59 | a | 86.06 | 86.48 | 72.48 | a | 62.28 | b | 49.00 | 36.20 | a | 60.34 | |||||||||
1971 | 41.68 | 45.86 | 44.90 | 54.43 | 62.61 | 68.17 | 83.87 | 87.90 | 73.13 | 57.45 | 48.10 | 34.94 | 58.59 | |||||||||||||
1972 | 36.68 | 44.90 | 56.58 | 53.07 | 67.87 | 77.47 | 86.87 | 84.06 | 70.63 | 61.16 | 43.90 | 36.19 | 59.95 | |||||||||||||
1973 | 37.90 | 43.07 | 46.06 | 59.87 | 71.94 | 77.37 | 85.57 | c | 84.03 | 74.63 | c | 61.29 | c | ----- | z | ----- | z | 64.17 | b | |||||||
1974 | 35.97 | 42.54 | 45.84 | 53.03 | ----- | z | ----- | z | 81.39 | 83.29 | 82.10 | 66.78 | d | 49.89 | b | 40.67 | a | 58.15 | b | |||||||
1975 | 39.82 | c | 39.35 | b | 42.55 | b | 45.00 | e | 66.25 | c | 73.69 | d | 82.87 | 78.52 | 80.43 | 57.19 | 44.80 | 43.03 | a | 57.79 | ||||||
1976 | 42.84 | 44.93 | 44.93 | a | 53.46 | b | 69.13 | 69.83 | a | 82.29 | 73.23 | 75.76 | a | 67.00 | b | 57.47 | 45.77 | 60.55 | ||||||||
1977 | 36.42 | 48.61 | 42.65 | 60.90 | 53.58 | 78.07 | ----- | z | 84.40 | a | 71.57 | 62.97 | a | 48.13 | 43.23 | 57.32 | a | |||||||||
1978 | 42.32 | 45.29 | 54.39 | 50.40 | ----- | z | ----- | z | ----- | z | ----- | z | 68.18 | h | ----- | z | ----- | z | ----- | z | 48.10 | h | ||||
1979 | ----- | z | ----- | z | 51.16 | 54.27 | ----- | z | ----- | z | ----- | z | ----- | z | 77.82 | b | ----- | z | 46.57 | 44.23 | a | 54.81 | g | |||
1980 | ----- | z | 47.46 | e | 46.55 | 56.78 | c | 62.81 | 67.46 | d | 82.39 | c | 81.84 | l | 74.96 | d | 66.21 | b | 50.95 | h | 44.89 | c | 61.06 | c | ||
1981 | 44.50 | c | 45.37 | a | 49.28 | f | 58.29 | f | 62.97 | a | 73.97 | 83.13 | 87.19 | 76.93 | 57.48 | 48.25 | b | 42.79 | b | 62.26 | b | |||||
1982 | 36.33 | a | 41.19 | a | 44.78 | d | 51.39 | b | 65.57 | a | 71.66 | a | 79.93 | b | ----- | z | 69.24 | a | 59.00 | k | 46.05 | j | 37.58 | g | 57.51 | d |
1983 | 43.26 | d | 44.19 | a | 47.00 | 50.57 | i | 66.19 | 74.20 | j | 80.04 | f | 81.90 | a | 76.39 | g | 66.21 | b | 45.29 | b | 37.39 | 53.93 | d | |||
1984 | 42.23 | a | 45.11 | a | 52.93 | c | 56.50 | 69.30 | a | 74.28 | e | 86.22 | h | 85.45 | 74.48 | a | 56.93 | c | 42.76 | a | 37.47 | a | 57.95 | a | ||
1985 | 39.87 | 42.89 | 46.45 | 63.68 | b | 64.26 | 79.67 | 87.74 | 81.83 | a | 67.33 | 60.40 | a | 40.83 | 41.74 | 59.73 | ||||||||||
1986 | 48.48 | 47.43 | 55.71 | 57.00 | c | 65.63 | a | 79.93 | a | 81.65 | 90.10 | 67.00 | ----- | z | 50.77 | d | 42.57 | a | 62.39 | a | ||||||
1987 | 38.50 | a | 47.52 | a | 48.90 | 65.03 | 70.17 | a | ----- | z | 76.29 | 84.42 | 79.10 | 72.77 | 48.76 | a | 37.17 | a | 60.78 | a | ||||||
1988 | 38.42 | 49.69 | 52.73 | a | 57.93 | 62.55 | b | 75.27 | 88.42 | 87.80 | a | 79.83 | a | ----- | z | 46.21 | a | 40.90 | a | 61.80 | a | |||||
1989 | 37.37 | a | 36.14 | 48.42 | 61.37 | 61.03 | 76.17 | 82.55 | 78.71 | 74.43 | 59.87 | a | 53.72 | a | 48.13 | 59.83 | ||||||||||
1990 | 43.19 | 43.18 | 51.81 | 63.27 | 61.55 | 71.77 | 83.13 | 81.07 | d | 78.92 | e | 66.43 | a | 48.39 | b | 37.12 | f | 62.97 | a | |||||||
1991 | 44.73 | a | 54.00 | 43.04 | c | 53.08 | f | 60.50 | q | 69.74 | k | 84.81 | e | 84.68 | f | 82.50 | 67.92 | e | 51.79 | f | 41.64 | c | 59.81 | e | ||
1992 | 43.62 | b | 50.55 | 55.10 | 61.41 | a | 76.13 | 77.30 | 81.39 | 87.94 | 77.79 | a | 67.65 | 48.23 | 36.12 | g | 66.10 | a | ||||||||
1993 | 34.03 | a | 37.00 | 51.48 | b | 53.00 | 64.90 | 70.57 | 76.90 | a | 79.93 | a | 77.29 | b | 66.68 | l | 47.60 | 40.04 | c | 57.52 | a | |||||
1994 | 45.16 | 41.82 | 55.45 | 58.43 | 66.16 | 74.67 | 88.81 | 85.56 | d | 77.74 | c | 61.52 | 38.77 | 38.67 | a | 61.06 | ||||||||||
1995 | 40.97 | 55.00 | 46.35 | 53.67 | 63.42 | 69.87 | 79.90 | 81.90 | 79.17 | 65.34 | b | 57.43 | 43.00 | a | 61.34 | |||||||||||
1996 | 42.71 | 45.41 | 53.48 | 57.30 | 63.81 | 75.27 | 87.45 | 87.06 | 73.80 | 64.90 | 51.11 | b | 41.84 | 62.01 | ||||||||||||
1997 | 41.35 | 44.86 | 54.65 | 55.20 | 72.00 | 72.48 | a | 82.55 | 83.71 | 75.70 | 61.16 | 47.90 | 33.46 | c | 60.42 | |||||||||||
1998 | 42.79 | b | 40.80 | c | 49.84 | 54.83 | 56.07 | b | 70.70 | 86.72 | b | 87.61 | c | 79.60 | 65.48 | f | 48.03 | a | 38.31 | e | 59.57 | a | ||||
1999 | 43.86 | c | 40.48 | c | 47.93 | c | 52.85 | c | 65.45 | b | 73.73 | d | 84.55 | b | 82.45 | 79.73 | 71.23 | 58.48 | e | 43.72 | f | 63.70 | a | |||
2000 | 41.67 | d | 45.82 | a | 51.19 | 61.43 | 66.39 | 80.00 | 82.87 | 87.06 | 73.53 | 63.29 | 45.30 | 44.87 | 61.95 | |||||||||||
2001 | 43.63 | a | 42.82 | 54.52 | 55.17 | 75.80 | a | 75.56 | c | 85.06 | 88.39 | 79.43 | 69.13 | 49.93 | 39.58 | 63.25 | ||||||||||
2002 | 40.84 | 48.78 | a | 50.10 | 60.76 | a | 65.16 | 78.62 | a | 90.38 | b | 84.19 | 79.55 | a | 65.06 | 54.34 | a | 44.92 | g | 65.25 | a | |||||
2003 | 48.86 | c | 46.50 | 52.74 | 49.53 | 65.39 | 82.21 | a | 89.68 | 83.87 | 81.70 | 70.58 | 44.93 | 41.40 | a | 63.12 | ||||||||||
2004 | 42.03 | b | 42.90 | 59.61 | 60.73 | 66.03 | 77.80 | 86.58 | 84.45 | 75.70 | 61.16 | 47.67 | 44.06 | 62.39 | ||||||||||||
2005 | 42.13 | 47.07 | 54.06 | 55.03 | 63.06 | 68.41 | a | 90.10 | b | 87.39 | 74.67 | 62.65 | 47.33 | 42.29 | 61.18 | |||||||||||
2006 | 42.06 | 45.64 | 41.81 | 54.70 | 69.32 | 79.38 | a | 90.03 | 84.26 | 78.67 | 64.03 | 48.47 | 42.26 | 61.72 | ||||||||||||
2007 | 41.61 | 45.86 | 56.93 | c | 60.34 | a | 71.48 | 78.13 | 87.60 | a | 86.77 | 74.80 | 59.73 | i | 52.29 | b | 37.64 | c | 63.04 | a | ||||||
2008 | 36.52 | d | 44.24 | 50.86 | b | 55.83 | 66.06 | 75.93 | 86.68 | 86.43 | a | 80.10 | 67.55 | b | 49.36 | s | 42.90 | a | 63.01 | a | ||||||
2009 | 44.22 | h | 45.08 | d | 48.42 | e | 59.82 | h | 68.52 | h | 74.38 | i | 90.29 | n | 89.31 | r | 81.97 | 56.93 | p | 49.40 | 38.90 | 52.76 | g | |||
2010 | 43.26 | l | 45.81 | a | 50.70 | k | 50.83 | 57.70 | d | 72.63 | 82.82 | t | 81.36 | c | 76.66 | a | 64.81 | 46.07 | p | 42.03 | 61.48 | d | ||||
2011 | 44.39 | 42.61 | 43.94 | 51.54 | b | 58.94 | 70.47 | 81.61 | 85.74 | 81.93 | 64.68 | 48.40 | 44.36 | q | 61.29 | a | ||||||||||
2012 | 45.43 | c | 45.93 | 45.88 | n | 55.18 | m | 68.41 | n | 74.67 | i | 86.30 | k | 89.55 | k | 83.45 | s | 65.25 | o | 53.56 | n | 38.06 | n | 45.68 | j | |
2013 | 39.89 | m | 43.67 | p | 54.71 | n | 56.59 | m | 68.00 | r | 73.60 | o | 91.31 | r | 82.13 | p | 73.53 | o | 64.86 | x | 53.92 | e | 40.20 | f | 53.92 | k |
2014 | 50.03 | 47.57 | 55.10 | 61.50 | 68.84 | 78.40 | 91.55 | 85.13 | 79.73 | 66.42 | l | 51.50 | t | 43.58 | 66.14 | b | ||||||||||
2015 | 48.04 | e | 54.08 | b | 60.89 | d | 59.20 | 66.65 | 84.30 | c | 84.65 | 85.61 | 78.03 | 68.69 | o | 48.56 | l | 39.39 | 66.08 | b | ||||||
2016 | 41.00 | u | 50.15 | p | 52.50 | o | 62.87 | o | 64.72 | m | 77.36 | h | 84.75 | w | 87.31 | o | 77.00 | r | 57.19 | o | 54.00 | n | 37.75 | o | ----- | z |
2017 | 36.60 | k | 47.31 | l | 53.05 | j | 54.13 | o | 72.26 | l | 74.15 | j | 89.85 | r | 86.88 | g | 76.03 | 61.96 | d | 49.60 | e | 44.10 | b | 57.92 | h | |
2018 | 46.81 | 45.21 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.10 | u | 52.47 | 42.76 | j | 48.16 | i | |||
2019 | 44.63 | a | 31.70 | r | 46.71 | 56.81 | c | 60.68 | 75.43 | 82.94 | 84.30 | d | 72.73 | 59.58 | 56.95 | i | 39.58 | 62.34 | b | |||||||
2020 | 42.89 | d | ----- | z | ----- | z | ----- | z | ----- | z | 73.83 | x | 84.50 | u | ----- | z | 80.69 | a | 66.07 | d | 46.93 | ----- | z | 59.15 | h | |
2021 | ----- | z | 41.81 | b | 46.13 | h | 61.72 | a | 66.34 | b | 79.70 | j | 90.24 | b | 85.21 | b | 75.92 | d | 59.65 | e | 50.89 | c | 40.77 | 63.62 | c | |
2022 | 47.26 | d | 48.62 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 91.33 | x | ----- | z | 40.48 | a | 37.13 | 43.37 | h | |
2023 | 38.81 | 41.68 | 39.23 | a | 53.59 | h | 67.65 | 75.33 | x | ----- | z | ----- | z | ----- | z | 63.63 | a | ----- | z | ----- | z | 50.20 | g | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 41.51 | 45.04 | 49.45 | 56.23 | 65.24 | 74.62 | 84.42 | 83.63 | 76.37 | 63.64 | 48.94 | 40.73 | 60.53 | |||||||||||||
S.D. | 4.10 | 4.05 | 4.85 | 4.84 | 4.54 | 4.08 | 3.70 | 3.66 | 3.78 | 3.93 | 4.42 | 3.25 | 1.37 | |||||||||||||
SKEW | -0.38 | 0.19 | 0.22 | -0.29 | 0.03 | 0.10 | -0.13 | -0.76 | -0.54 | 0.21 | 0.41 | -0.18 | 0.22 | |||||||||||||
MAX | 50.03 | 55.00 | 60.89 | 65.03 | 76.13 | 84.30 | 91.55 | 90.10 | 82.50 | 72.77 | 59.07 | 48.13 | 63.25 | |||||||||||||
MIN | 28.06 | 36.14 | 39.23 | 43.97 | 53.58 | 66.47 | 76.29 | 73.23 | 67.00 | 56.00 | 38.77 | 33.46 | 57.79 | |||||||||||||
YRS | 56 | 56 | 54 | 53 | 53 | 49 | 50 | 52 | 58 | 50 | 54 | 52 | 25 |