YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1947 | ----- | z | ----- | z | ----- | z | 57.87 | 70.87 | 69.93 | 82.03 | 77.61 | 66.53 | 56.35 | 40.47 | 38.16 | 62.20 | c | |||||||||
1948 | 35.65 | 39.10 | 43.83 | a | 52.14 | a | 60.83 | a | 74.03 | 75.40 | a | 74.97 | 69.20 | 54.87 | 42.87 | 31.35 | 54.52 | |||||||||
1949 | 24.74 | 36.50 | 43.87 | 57.77 | 67.65 | 75.53 | 81.16 | ----- | z | 68.03 | a | 53.55 | 48.00 | 37.61 | 54.04 | a | ||||||||||
1950 | 23.65 | 37.96 | 42.60 | a | 53.17 | 63.35 | 72.11 | c | 80.31 | b | 80.63 | a | 73.70 | 53.87 | 45.52 | a | 40.00 | 55.57 | ||||||||
1951 | 35.94 | 40.39 | ----- | z | 59.77 | 64.00 | 71.47 | 81.97 | 80.94 | 70.73 | 52.65 | 42.93 | 31.03 | 57.44 | a | |||||||||||
1952 | 33.23 | 37.97 | 46.10 | 59.57 | 66.29 | 71.57 | 83.08 | f | 81.48 | 76.63 | 64.80 | a | 42.13 | 37.84 | 56.15 | a | ||||||||||
1953 | 44.10 | 43.25 | 48.23 | 53.90 | 62.53 | a | 67.83 | 83.90 | 81.35 | 74.33 | 60.48 | 47.72 | a | 40.06 | 58.98 | |||||||||||
1954 | 34.52 | 41.61 | 43.13 | h | 55.10 | 65.26 | 68.70 | 80.84 | 75.32 | 68.10 | 55.00 | 48.86 | b | 37.42 | 57.34 | a | ||||||||||
1955 | 34.42 | 33.37 | i | 40.14 | c | 48.47 | 59.65 | 71.30 | 74.48 | 82.10 | 70.67 | 55.81 | 37.30 | 36.16 | 55.50 | a | ||||||||||
1956 | 35.43 | c | 32.21 | 43.72 | b | 57.30 | 65.06 | 70.40 | 81.45 | 79.10 | 71.73 | 55.00 | 40.81 | c | 39.24 | n | 57.47 | a | ||||||||
1957 | 25.23 | 36.93 | 42.81 | 54.23 | 66.84 | 72.70 | 76.65 | 75.87 | 71.57 | 52.61 | 42.87 | 41.55 | 54.99 | |||||||||||||
1958 | 36.94 | 42.82 | 45.23 | 52.17 | 73.81 | 74.30 | 79.61 | 86.19 | 69.79 | a | 58.00 | 42.80 | 38.06 | 58.31 | ||||||||||||
1959 | 37.48 | 36.50 | 45.71 | 54.80 | 57.81 | 71.27 | 72.56 | o | 73.81 | 60.57 | 52.61 | 40.63 | 38.37 | a | 51.78 | a | ||||||||||
1960 | 32.10 | 37.93 | 43.39 | 48.62 | a | 55.81 | 71.97 | 85.74 | 74.58 | 69.07 | 56.10 | a | 43.70 | 34.97 | 54.50 | |||||||||||
1961 | 38.45 | 43.79 | 45.81 | 52.43 | 58.53 | a | 73.20 | 83.10 | a | 84.77 | 66.37 | 53.67 | a | 39.20 | 34.87 | 56.18 | ||||||||||
1962 | 32.00 | 38.85 | a | 40.80 | a | 57.43 | 58.35 | 69.37 | k | 77.55 | 75.26 | 69.17 | 55.32 | 46.23 | 39.84 | 53.71 | a | |||||||||
1963 | 27.48 | 42.39 | 46.97 | 51.33 | 65.19 | 70.73 | 76.81 | 77.23 | 69.27 | 57.52 | 44.00 | 33.13 | 55.17 | |||||||||||||
1964 | 36.42 | 38.83 | 40.83 | a | 52.27 | 61.58 | 70.23 | 76.87 | 70.42 | 62.03 | 52.61 | 40.73 | 33.23 | a | 53.01 | |||||||||||
1965 | 37.26 | 39.18 | 40.55 | 54.20 | 63.57 | a | 72.53 | 79.35 | 76.97 | 62.18 | h | 58.20 | a | 45.73 | 38.94 | 55.13 | a | |||||||||
1966 | 37.13 | 38.75 | 47.71 | 55.37 | 67.10 | 69.11 | b | 80.61 | 79.68 | 74.90 | 57.58 | 43.13 | 38.77 | a | 57.49 | |||||||||||
1967 | 39.52 | 42.07 | 44.26 | 51.20 | 63.97 | 74.40 | 84.97 | 86.26 | 75.57 | 55.17 | a | 42.80 | 34.87 | a | 57.92 | |||||||||||
1968 | 34.65 | 41.21 | 47.97 | 53.77 | 63.94 | 72.33 | 81.23 | 75.48 | 65.43 | 51.71 | 41.83 | 33.39 | 55.24 | |||||||||||||
1969 | 26.00 | 35.00 | 43.87 | 52.27 | 67.23 | 74.69 | a | 78.52 | 79.61 | 68.37 | 51.55 | 43.70 | 35.94 | 54.73 | ||||||||||||
1970 | 32.35 | 39.26 | a | 44.26 | 50.87 | 65.77 | a | 75.37 | 80.84 | 79.87 | a | 63.47 | 51.00 | 42.33 | 34.42 | 54.98 | ||||||||||
1971 | 36.13 | 38.82 | 42.35 | 52.53 | 64.03 | 66.23 | 77.81 | 82.26 | 61.73 | 52.00 | 41.93 | 34.29 | 54.18 | |||||||||||||
1972 | 31.61 | 37.82 | a | 46.61 | 51.93 | 63.87 | 68.53 | 77.48 | 79.90 | 64.57 | 52.30 | a | 42.23 | 32.93 | a | 54.15 | ||||||||||
1973 | 32.29 | 38.25 | 46.87 | 54.90 | 66.26 | 72.31 | a | 83.71 | 84.00 | 70.03 | 54.26 | 39.97 | 39.23 | 56.84 | ||||||||||||
1974 | 32.87 | 39.64 | 44.48 | 52.73 | 59.81 | 76.40 | 77.73 | a | 78.03 | 71.30 | 58.45 | 43.77 | 39.23 | 56.20 | ||||||||||||
1975 | 34.19 | 34.89 | a | 42.16 | 48.93 | a | 63.15 | e | 67.10 | 80.90 | 72.52 | 67.37 | 52.77 | 41.90 | 38.97 | 53.74 | ||||||||||
1976 | 37.74 | 38.52 | 41.68 | 53.47 | 64.74 | 64.66 | a | 75.58 | 71.68 | 69.60 | 56.97 | 44.67 | 38.13 | 54.79 | ||||||||||||
1977 | 31.16 | 41.82 | 45.42 | 57.83 | 59.68 | 77.89 | k | 77.48 | 80.77 | a | 62.63 | 55.16 | 42.17 | 35.65 | 53.62 | a | ||||||||||
1978 | 36.10 | 39.96 | 49.39 | 54.23 | 62.39 | 74.07 | 79.55 | 76.00 | b | 65.90 | 58.29 | 40.24 | a | 33.45 | 55.80 | |||||||||||
1979 | 25.52 | 37.46 | 48.29 | 53.47 | 66.26 | 75.50 | ----- | z | 81.00 | a | 71.63 | c | 61.72 | b | 42.62 | a | 45.39 | 55.35 | a | |||||||
1980 | 38.61 | 40.52 | 47.68 | 59.57 | 62.50 | s | ----- | z | ----- | z | 73.32 | 68.83 | 56.03 | 44.10 | 40.03 | 52.08 | c | |||||||||
1981 | 39.61 | 39.61 | 48.52 | 53.17 | 59.71 | 64.37 | 74.00 | 80.00 | ----- | z | 53.81 | 45.70 | 37.42 | 54.17 | a | |||||||||||
1982 | 31.74 | h | 29.50 | f | 46.83 | a | 51.07 | 62.55 | 73.37 | 73.45 | 76.42 | 67.53 | 52.14 | b | ----- | z | 36.29 | 59.96 | c | |||||||
1983 | 40.73 | a | 41.00 | 48.16 | 54.33 | 67.58 | 69.27 | 70.35 | 78.23 | 65.27 | 56.55 | 45.89 | b | 28.42 | 55.48 | |||||||||||
1984 | 36.39 | 39.55 | 45.52 | 52.47 | 58.23 | 66.83 | 80.43 | a | 80.61 | 65.17 | a | 51.94 | 41.83 | 30.72 | b | 54.14 | ||||||||||
1985 | 30.13 | 34.25 | 45.10 | 56.50 | 64.55 | 71.60 | 86.55 | 73.97 | 62.03 | a | 52.23 | 32.77 | 29.81 | 53.29 | ||||||||||||
1986 | 37.00 | 38.61 | 49.26 | 52.70 | 63.55 | 76.50 | 74.10 | 81.58 | 62.70 | 56.00 | 41.67 | 35.10 | a | 55.73 | ||||||||||||
1987 | 34.97 | 39.93 | 46.06 | 59.23 | 66.94 | 73.87 | 76.84 | 75.48 | 71.45 | a | 57.61 | 45.60 | 35.71 | 56.97 | ||||||||||||
1988 | 33.74 | ----- | z | 46.42 | 56.70 | 61.97 | 70.37 | 78.06 | 80.74 | 68.50 | 59.58 | 44.30 | 35.16 | 57.78 | a | |||||||||||
1989 | 36.68 | 30.14 | 41.35 | 57.10 | 61.52 | 74.67 | 79.16 | 73.29 | 68.20 | 56.39 | 44.53 | 36.58 | 54.97 | |||||||||||||
1990 | 38.68 | 36.68 | 46.48 | 57.79 | a | 59.90 | 68.57 | 79.32 | 78.48 | 73.87 | 54.61 | 45.07 | 28.32 | 55.65 | ||||||||||||
1991 | 33.45 | b | 44.00 | 43.29 | 56.53 | 61.13 | 67.07 | 80.42 | 81.39 | 72.00 | 56.45 | 41.37 | 38.19 | 56.27 | ||||||||||||
1992 | 37.61 | 42.03 | 49.45 | 57.60 | 70.77 | 77.70 | 75.61 | 77.84 | 65.63 | 57.26 | 40.17 | 32.06 | 56.98 | |||||||||||||
1993 | 31.10 | 34.68 | 44.42 | 52.45 | a | 69.13 | 69.83 | 67.90 | 75.35 | 67.97 | 58.32 | 38.83 | 35.71 | 53.81 | ||||||||||||
1994 | 39.97 | 35.29 | 48.16 | 58.37 | 66.39 | 69.37 | 82.90 | 82.84 | 72.60 | 56.77 | 39.45 | a | 35.65 | 57.31 | ||||||||||||
1995 | 36.61 | 44.89 | 46.00 | a | 54.37 | 67.10 | a | 69.97 | 80.00 | 73.90 | 69.80 | 52.58 | 47.07 | 36.61 | 56.58 | |||||||||||
1996 | 32.73 | a | 37.83 | 43.10 | 54.67 | 53.39 | 70.77 | 81.58 | 77.77 | 65.57 | 52.90 | 39.70 | 32.65 | 53.55 | ||||||||||||
1997 | 34.19 | 38.46 | 46.03 | 52.30 | 65.50 | a | 70.86 | a | 80.73 | a | 80.50 | a | 68.23 | 54.26 | 45.47 | 36.75 | c | 56.11 | ||||||||
1998 | 36.58 | 41.57 | 46.97 | 60.29 | b | 70.38 | b | 74.47 | 85.81 | 85.68 | 77.37 | 56.61 | 47.40 | 38.57 | c | 60.14 | ||||||||||
1999 | 38.93 | a | 41.43 | 46.58 | 54.39 | b | 63.97 | a | 72.75 | b | 79.67 | a | 80.87 | 70.17 | 57.23 | 47.24 | a | 38.37 | a | 57.63 | ||||||
2000 | 35.77 | 39.97 | 46.42 | 58.31 | a | 63.58 | 71.93 | b | 81.84 | 83.77 | 65.53 | ----- | z | 37.38 | a | 33.55 | b | 56.19 | a | |||||||
2001 | 36.30 | a | 37.00 | 49.19 | 52.30 | 69.16 | 70.07 | a | 80.73 | a | 82.13 | a | 75.18 | b | 51.45 | b | 46.29 | b | 36.76 | b | 57.21 | |||||
2002 | 37.90 | 40.15 | b | 43.93 | b | 55.59 | a | 60.30 | a | 73.03 | 81.83 | a | 80.85 | e | 69.46 | b | 54.19 | 43.03 | 39.94 | 56.68 | ||||||
2003 | 39.42 | 40.07 | 48.06 | 53.77 | 62.90 | 75.57 | 87.52 | b | 84.10 | 73.31 | a | 59.57 | a | 38.83 | 35.74 | 58.24 | ||||||||||
2004 | 34.03 | 40.45 | 49.45 | k | ----- | z | 65.69 | b | 72.52 | a | 84.13 | a | 81.45 | 66.03 | a | 56.19 | 43.50 | 39.19 | 58.32 | b | ||||||
2005 | 35.35 | 41.68 | 50.81 | 58.60 | 66.73 | a | 72.42 | d | ----- | z | 82.86 | b | 70.21 | f | 56.16 | 41.27 | 32.63 | a | 53.85 | b | ||||||
2006 | 41.03 | 38.78 | a | 45.46 | c | 57.07 | a | 66.44 | f | 74.60 | e | 87.77 | e | 80.97 | b | 72.64 | e | 58.21 | c | 43.67 | c | 36.87 | 57.92 | a | ||
2007 | 34.55 | b | 40.41 | a | 49.55 | 57.64 | b | 69.00 | b | 73.00 | a | 89.33 | a | 82.55 | 71.00 | 54.61 | 43.20 | 36.53 | a | 58.45 | ||||||
2008 | 33.40 | a | 40.96 | c | 44.34 | b | 51.37 | 66.07 | a | 71.67 | 84.45 | b | 79.84 | 68.33 | 56.50 | a | 46.63 | 30.13 | a | 56.14 | ||||||
2009 | 34.83 | b | 38.50 | 41.43 | a | 54.82 | b | 65.65 | 73.80 | 81.74 | 80.42 | 73.60 | 50.23 | 44.17 | 31.23 | 55.87 | ||||||||||
2010 | 38.48 | 42.25 | 49.60 | a | 53.73 | 59.93 | a | 67.43 | 79.87 | 80.10 | 66.70 | 56.23 | 40.40 | 36.94 | 55.97 | |||||||||||
2011 | 36.50 | a | 35.93 | 45.19 | 50.24 | a | 61.74 | 66.77 | 77.68 | 84.00 | 72.60 | 53.61 | 41.20 | 34.39 | 54.99 | |||||||||||
2012 | 36.87 | 37.76 | 43.81 | 53.17 | 60.94 | 64.97 | 77.52 | b | 77.55 | 70.27 | 54.87 | 43.47 | 37.57 | a | 54.90 | |||||||||||
2013 | 32.52 | 38.86 | 45.13 | 53.00 | 63.32 | 68.73 | 84.48 | 78.26 | 68.33 | 49.42 | 39.80 | 31.16 | 54.42 | |||||||||||||
2014 | 35.26 | 31.75 | 44.52 | 53.60 | 64.10 | 69.23 | 80.35 | 78.42 | 68.77 | 57.81 | 40.47 | 35.77 | 55.00 | |||||||||||||
2015 | 35.06 | 42.11 | 49.71 | 54.33 | 66.97 | 79.70 | 82.71 | c | 81.68 | 66.73 | 59.55 | 41.40 | 36.26 | 58.02 | ||||||||||||
2016 | 35.39 | 40.87 | f | 45.90 | 60.77 | 65.23 | 72.73 | d | 76.42 | 79.48 | b | 67.86 | b | 53.74 | d | 47.70 | 31.27 | a | 57.86 | a | ||||||
2017 | 29.13 | 37.29 | 45.32 | 50.50 | 61.23 | a | 70.10 | 82.32 | 81.39 | 68.57 | 53.45 | 42.27 | 30.81 | 54.36 | ||||||||||||
2018 | 37.42 | 35.96 | 46.29 | 52.83 | 69.52 | 71.83 | 80.32 | 78.53 | a | 66.17 | a | 53.70 | a | 41.97 | 37.29 | 55.99 | ||||||||||
2019 | 36.97 | 28.57 | 41.68 | 52.34 | a | 66.96 | g | 72.30 | j | 78.95 | j | 81.23 | i | 68.30 | j | 49.91 | h | 43.37 | k | 36.95 | k | 39.89 | h | |||
2020 | 38.24 | j | 39.50 | i | 46.32 | i | 55.50 | h | 60.84 | l | 70.77 | h | 80.43 | j | 83.14 | j | 72.33 | i | 54.35 | h | 44.84 | k | 36.68 | i | ----- | z |
2021 | 37.68 | l | 34.40 | h | 46.17 | h | 59.59 | h | 63.25 | k | 79.76 | i | 88.38 | j | 80.09 | i | 70.80 | j | 53.85 | k | 46.16 | k | 36.55 | k | ----- | z |
2022 | 35.89 | l | 37.68 | i | 47.61 | h | 50.68 | h | 58.21 | l | 71.50 | h | 85.45 | k | 90.82 | i | 78.71 | i | 66.16 | l | 35.32 | k | 30.50 | k | ----- | z |
2023 | 34.25 | k | 36.65 | h | 44.22 | h | 52.05 | j | 70.62 | j | 75.71 | i | 82.22 | m | 82.17 | h | 67.78 | l | 54.55 | k | 41.11 | k | 38.37 | l | ----- | z |
2024 | 31.57 | j | 39.32 | j | 46.10 | j | 54.36 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 34.88 | 38.80 | 45.47 | 54.47 | 64.02 | 71.49 | 80.02 | 79.19 | 68.90 | 55.31 | 42.83 | 35.77 | 55.85 | |||||||||||||
S.D. | 3.96 | 3.13 | 2.57 | 2.91 | 3.75 | 3.14 | 3.95 | 3.57 | 3.73 | 2.82 | 2.89 | 3.29 | 1.57 | |||||||||||||
SKEW | -0.86 | -0.87 | -0.10 | 0.25 | -0.13 | -0.10 | -0.29 | -0.28 | 0.01 | 0.53 | -0.36 | -0.13 | 0.49 | |||||||||||||
MAX | 44.10 | 44.89 | 50.81 | 60.77 | 73.81 | 79.70 | 89.33 | 86.26 | 77.37 | 64.80 | 48.86 | 45.39 | 60.14 | |||||||||||||
MIN | 23.65 | 28.57 | 40.14 | 48.47 | 53.39 | 64.37 | 67.90 | 70.42 | 60.57 | 49.42 | 32.77 | 28.32 | 53.01 | |||||||||||||
YRS | 71 | 68 | 69 | 72 | 70 | 69 | 67 | 71 | 69 | 71 | 71 | 71 | 51 |