YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.39 | l | 62.67 | d | 44.80 | 35.13 | 47.53 | i | ||
1952 | 35.21 | b | 35.52 | 42.19 | 58.00 | 70.23 | 82.43 | 85.84 | 82.84 | 78.27 | 72.61 | 46.50 | 35.32 | 60.41 | ||||||||||||
1953 | 40.06 | 40.39 | 52.87 | 58.17 | 65.19 | 76.24 | e | 85.55 | 85.03 | 80.27 | 64.80 | a | 54.20 | 34.84 | 61.47 | |||||||||||
1954 | 42.35 | 55.93 | 49.00 | a | 68.40 | 73.03 | 82.47 | 88.61 | 84.64 | c | 74.17 | 68.10 | a | 55.13 | 31.77 | 64.47 | ||||||||||
1955 | 30.32 | 34.54 | ----- | z | ----- | z | 67.27 | e | 79.66 | a | 86.87 | 85.61 | 82.97 | 70.39 | 40.75 | r | 34.14 | j | 67.20 | d | ||||||
1956 | 40.42 | 34.72 | 48.43 | a | 59.27 | 73.90 | a | 84.83 | 87.06 | 83.58 | 82.23 | 69.00 | 42.59 | a | 35.87 | h | 64.19 | a | ||||||||
1957 | 31.62 | e | 40.39 | 47.35 | 52.37 | 65.74 | 79.54 | d | 82.45 | 80.13 | 74.87 | 67.03 | 42.97 | 38.10 | 58.55 | |||||||||||
1958 | 33.65 | 41.96 | 44.13 | 57.00 | 75.52 | 82.73 | 86.13 | 87.26 | 77.20 | 69.06 | 50.33 | 47.05 | k | 64.09 | a | |||||||||||
1959 | 38.43 | a | 39.50 | 47.35 | 59.97 | 72.42 | 84.43 | 86.90 | 80.58 | 75.13 | 64.06 | 51.97 | 39.26 | 61.67 | ||||||||||||
1960 | 33.77 | 34.21 | 47.61 | 62.63 | 71.00 | 83.40 | 88.97 | 87.26 | 80.39 | b | 65.53 | a | 52.69 | a | 36.10 | k | 64.32 | a | ||||||||
1961 | 37.00 | c | 42.39 | 47.39 | 58.10 | 72.90 | 84.67 | 87.19 | 85.10 | a | 70.10 | a | 65.74 | 45.73 | 31.90 | 60.69 | ||||||||||
1962 | 31.87 | 33.86 | 43.06 | 68.40 | 67.87 | 91.33 | 90.13 | 88.03 | 78.60 | 69.42 | ----- | z | 43.35 | 64.18 | a | |||||||||||
1963 | 34.26 | 43.50 | 44.94 | 64.00 | 76.00 | 81.20 | 88.10 | 82.77 | ----- | z | ----- | z | 63.93 | b | 44.25 | k | 64.30 | c | ||||||||
1964 | 33.00 | 36.10 | 40.39 | 56.20 | 72.06 | ----- | z | ----- | z | 75.64 | t | 77.00 | u | 62.62 | w | 45.87 | 36.03 | 45.66 | e | |||||||
1965 | 35.13 | 38.21 | 41.48 | 58.97 | 65.39 | 74.43 | 82.06 | 82.27 | a | 70.90 | 70.19 | 52.80 | 34.63 | a | 58.87 | |||||||||||
1966 | 25.93 | a | 31.71 | 48.58 | 61.62 | a | 73.71 | 80.03 | 87.26 | d | 85.26 | 78.77 | 67.03 | 52.00 | 35.87 | 60.65 | ||||||||||
1967 | 36.87 | a | 43.33 | a | 54.77 | 60.57 | 66.26 | 75.59 | a | 85.81 | 81.32 | 75.13 | 66.67 | a | 50.47 | 31.73 | a | 60.71 | ||||||||
1968 | 29.57 | a | 37.34 | 48.50 | a | 53.21 | a | 66.07 | b | 81.25 | f | ----- | z | ----- | z | 75.41 | a | 67.63 | a | 44.53 | 34.06 | 50.70 | c | |||
1969 | 39.32 | 31.43 | 40.77 | 61.50 | 73.94 | 74.50 | 84.81 | 86.16 | 76.34 | a | 52.87 | 45.80 | 38.19 | 58.80 | ||||||||||||
1970 | 36.45 | 43.86 | 42.74 | 53.77 | 70.48 | b | 76.57 | 83.48 | 83.45 | 72.38 | a | 56.03 | 45.97 | 38.79 | b | 58.66 | ||||||||||
1971 | 36.90 | 40.39 | 50.17 | a | 58.67 | 64.97 | 80.10 | 85.17 | a | 84.35 | 71.73 | d | 62.23 | 46.90 | 31.00 | 59.38 | ||||||||||
1972 | 33.29 | 41.69 | 54.67 | a | 60.27 | 70.55 | 80.13 | 85.52 | 83.52 | 75.47 | 57.16 | 40.23 | 29.29 | 59.31 | ||||||||||||
1973 | 29.13 | 36.04 | 46.52 | 52.50 | 66.71 | 79.39 | b | 82.07 | c | 81.68 | 74.87 | 66.87 | 52.00 | 34.97 | 58.56 | |||||||||||
1974 | 28.52 | 28.54 | 49.53 | a | 51.97 | 73.93 | b | 82.77 | 83.65 | 81.32 | 77.14 | a | 62.32 | 45.45 | a | 30.94 | 58.01 | |||||||||
1975 | 26.48 | 32.37 | a | 42.23 | 52.30 | 57.14 | c | 76.63 | 84.61 | 80.06 | 74.14 | a | 62.03 | 44.90 | 30.58 | 55.29 | ||||||||||
1976 | 28.58 | 38.68 | a | 47.17 | a | 57.27 | 67.68 | 80.33 | 87.13 | a | 79.67 | a | 73.23 | 61.39 | 51.90 | 41.68 | 59.56 | |||||||||
1977 | 35.71 | 45.11 | a | 46.20 | a | 62.40 | 69.39 | 84.93 | 85.77 | 84.61 | 76.03 | a | 64.86 | b | 42.33 | 40.74 | 61.51 | |||||||||
1978 | 32.80 | a | 34.74 | a | 48.55 | 49.00 | 62.87 | 82.14 | a | 87.26 | 82.93 | a | 77.30 | 68.58 | 48.63 | 25.07 | d | 58.32 | ||||||||
1979 | 24.14 | b | 37.71 | 43.23 | 56.53 | 67.48 | 78.33 | 85.10 | 80.97 | a | 81.70 | 69.13 | a | 43.13 | 37.27 | a | 58.73 | |||||||||
1980 | 39.00 | a | 39.55 | 38.55 | 47.59 | h | 64.58 | 84.17 | 87.42 | 85.13 | 77.38 | a | 67.00 | 51.38 | a | 47.03 | 61.93 | a | ||||||||
1981 | 41.10 | a | 42.14 | 49.68 | 65.57 | 68.16 | 81.75 | b | 84.81 | 82.13 | 71.20 | 59.26 | 51.70 | g | ----- | z | 64.58 | b | ||||||||
1982 | 31.86 | c | 34.22 | a | 45.86 | c | 56.78 | c | 61.58 | e | 77.24 | a | 85.86 | b | 82.81 | 68.69 | a | 59.63 | a | 43.75 | b | 35.77 | 57.00 | |||
1983 | 37.23 | 38.54 | b | 36.13 | 45.11 | b | 64.29 | 76.53 | 80.59 | b | 84.23 | 78.83 | a | 65.80 | a | 45.97 | a | 35.62 | b | 57.40 | ||||||
1984 | 25.52 | 27.10 | 38.39 | 53.11 | b | 72.86 | b | 77.62 | f | 84.07 | a | 83.13 | 75.82 | b | 55.84 | 45.11 | b | 32.87 | 53.98 | a | ||||||
1985 | 32.68 | 34.41 | a | 50.48 | 53.87 | 67.17 | b | 81.52 | a | 83.43 | a | 84.56 | d | 68.53 | 62.16 | 44.93 | 35.90 | b | 58.30 | |||||||
1986 | 35.94 | 44.57 | 55.67 | a | 59.07 | 67.77 | 79.90 | a | 81.40 | a | 83.23 | 69.57 | 59.30 | a | 45.67 | 35.52 | 59.80 | |||||||||
1987 | 34.26 | 39.36 | 45.71 | 62.27 | 66.13 | 80.53 | 83.74 | 80.39 | 74.63 | 65.71 | ----- | z | ----- | z | 63.27 | b | ||||||||||
1988 | 28.69 | o | 35.79 | 47.39 | 60.50 | 69.58 | 82.03 | a | 85.29 | 83.13 | 73.00 | 68.00 | 45.13 | 31.90 | 61.98 | a | ||||||||||
1989 | 23.16 | 34.71 | 52.16 | 64.17 | a | 71.97 | 78.87 | 86.97 | 82.45 | b | 77.81 | c | 64.03 | a | 51.59 | c | 36.13 | 60.34 | ||||||||
1990 | 35.60 | a | 42.18 | ----- | z | 61.17 | 67.87 | a | 84.10 | 82.68 | 81.63 | a | 77.80 | 63.94 | 46.63 | 32.94 | 61.50 | a | ||||||||
1991 | 30.77 | 42.00 | 45.60 | a | 54.87 | 69.26 | 78.86 | a | 82.84 | 82.29 | 73.80 | 65.35 | 42.93 | a | 35.10 | a | 58.64 | |||||||||
1992 | 34.74 | 41.79 | 50.27 | a | 64.40 | 68.94 | 76.59 | a | 79.34 | b | 80.13 | 76.18 | b | 66.29 | 38.00 | a | 31.00 | 58.97 | ||||||||
1993 | 33.61 | 35.64 | 48.20 | a | 56.30 | 66.73 | a | 76.87 | 83.42 | 78.73 | a | 75.52 | a | 60.23 | 41.17 | 33.97 | 57.53 | |||||||||
1994 | 35.00 | 34.81 | a | 53.32 | 58.75 | b | 71.26 | 84.00 | 86.58 | 84.32 | 75.03 | 61.93 | a | 43.07 | b | 35.14 | c | 60.27 | ||||||||
1995 | 35.21 | b | 47.89 | a | 47.31 | b | 55.87 | ----- | z | 74.27 | 81.24 | b | 84.23 | 74.93 | a | 65.68 | 54.00 | 41.30 | a | 60.17 | a | |||||
1996 | 35.37 | a | 37.52 | 49.83 | b | 59.66 | a | 73.61 | 80.07 | 86.71 | 84.60 | a | 71.21 | a | 60.93 | a | 47.41 | c | 35.00 | 60.16 | ||||||
1997 | 31.58 | 33.81 | a | 49.68 | c | 54.89 | b | 68.52 | 77.47 | 82.55 | 79.45 | 74.63 | 62.00 | 45.30 | 30.45 | 57.53 | ||||||||||
1998 | 38.90 | b | 37.74 | a | 48.40 | a | 54.79 | a | 69.87 | a | 76.60 | 85.55 | 83.32 | 78.97 | 62.74 | 48.86 | a | 40.61 | 60.53 | |||||||
1999 | 40.45 | 44.77 | b | 57.84 | 56.14 | a | 66.23 | 78.33 | 82.97 | a | 78.42 | 74.38 | a | 68.53 | a | 56.03 | 33.84 | 61.49 | ||||||||
2000 | 37.00 | c | 42.27 | c | 50.06 | 66.20 | 75.53 | a | 82.27 | 87.27 | a | 83.63 | a | 75.90 | 63.90 | b | 39.47 | 36.97 | 61.71 | |||||||
2001 | 32.84 | 40.78 | a | 49.93 | a | 60.86 | a | 71.94 | 82.23 | 83.68 | 80.26 | 77.00 | 64.30 | a | 51.00 | a | 30.77 | 60.47 | ||||||||
2002 | 31.81 | 34.85 | b | 46.20 | a | 64.67 | 71.61 | 85.27 | 88.33 | a | 82.32 | c | 71.33 | 58.29 | 44.37 | 36.13 | 59.60 | |||||||||
2003 | 40.60 | a | 38.00 | a | 48.68 | c | 59.67 | 71.10 | a | 78.40 | 90.07 | a | 83.58 | 74.10 | 69.40 | a | 45.17 | a | 37.13 | a | 61.32 | |||||
2004 | 28.65 | 34.28 | 57.16 | 58.43 | 71.90 | 79.47 | 83.00 | 80.48 | 71.63 | 60.45 | 47.03 | a | 36.71 | 59.10 | ||||||||||||
2005 | 41.00 | 41.07 | 47.63 | a | 60.67 | c | 73.00 | 76.63 | 88.68 | 81.41 | b | 75.50 | 64.06 | 49.63 | 33.10 | 61.03 | ||||||||||
2006 | 34.42 | 34.79 | 47.87 | a | 63.23 | 72.27 | a | 84.00 | 84.35 | 79.83 | a | 71.80 | 58.10 | 47.62 | a | 37.84 | 59.68 | |||||||||
2007 | 33.58 | 43.11 | 56.77 | 60.48 | a | 73.00 | 83.87 | 86.76 | b | 84.48 | 78.00 | 65.94 | 54.97 | 29.63 | a | 62.55 | ||||||||||
2008 | 24.19 | 35.52 | 45.90 | 56.17 | 67.57 | a | 79.53 | 84.43 | a | 83.26 | 75.47 | 64.83 | a | 53.03 | a | 34.40 | a | 58.69 | ||||||||
2009 | 33.87 | a | 40.63 | a | 52.03 | 57.00 | 70.10 | 73.93 | 86.13 | a | 84.32 | 76.63 | 56.93 | a | 50.72 | a | 29.87 | 59.35 | ||||||||
2010 | 32.55 | 36.29 | 46.80 | a | 62.13 | 68.35 | 81.60 | 86.20 | a | 83.13 | a | 79.17 | 66.33 | a | 45.90 | 40.81 | 60.77 | |||||||||
2011 | 32.32 | 36.89 | 51.48 | 59.14 | a | 65.30 | a | 80.77 | 85.00 | 86.65 | 75.97 | 64.29 | 48.23 | 36.58 | 60.22 | |||||||||||
2012 | 41.10 | 40.34 | 55.50 | a | 65.96 | b | 74.97 | a | ----- | z | 84.10 | 85.45 | 78.07 | 65.29 | 54.00 | 35.16 | 61.81 | a | ||||||||
2013 | 26.26 | 32.89 | 48.48 | 56.10 | 68.35 | 84.00 | 84.19 | 80.71 | 75.57 | 61.10 | 49.83 | 31.39 | 58.24 | |||||||||||||
2014 | 37.52 | 43.29 | 52.03 | 58.77 | 68.68 | 80.63 | 84.50 | m | 79.90 | 76.67 | 65.71 | 49.27 | 37.77 | 59.11 | a | |||||||||||
2015 | 35.52 | 46.64 | 56.19 | 59.60 | 64.19 | 81.37 | 81.23 | 83.45 | 78.57 | 67.06 | 47.73 | 34.71 | 61.36 | |||||||||||||
2016 | 30.84 | 39.97 | 52.97 | 59.23 | 68.16 | 83.50 | 85.71 | 80.00 | 76.50 | 69.26 | 52.63 | 35.65 | 61.20 | |||||||||||||
2017 | 32.10 | 43.68 | 56.81 | 60.37 | 67.77 | 84.60 | 85.58 | 83.26 | 75.97 | 66.87 | 56.57 | 45.39 | 63.25 | |||||||||||||
2018 | 41.74 | 43.18 | 53.00 | 63.87 | 74.19 | 85.47 | 89.61 | 85.48 | 79.90 | 61.48 | 45.90 | 32.87 | 63.06 | |||||||||||||
2019 | 33.10 | 33.71 | 45.45 | 60.33 | 63.13 | 77.60 | 86.00 | 86.19 | 79.70 | 61.84 | 50.70 | 33.87 | 59.30 | |||||||||||||
2020 | 33.52 | 39.34 | 51.45 | 60.90 | 75.06 | 82.50 | 86.39 | 89.19 | 77.60 | 68.90 | 51.80 | 32.55 | 62.43 | |||||||||||||
2021 | 34.42 | 40.57 | 49.61 | 63.13 | 72.94 | 84.73 | 87.65 | 84.53 | a | 79.97 | 62.71 | 55.33 | 39.00 | 62.88 | ||||||||||||
2022 | 35.71 | 39.39 | 49.03 | 61.37 | 72.07 | a | 82.33 | 85.94 | 83.10 | 80.23 | 62.23 | 44.57 | 34.58 | 60.88 | ||||||||||||
2023 | 33.55 | 32.82 | 40.29 | 57.20 | 70.84 | 77.17 | 90.03 | 85.03 | 77.37 | 65.94 | 52.37 | 39.61 | 60.18 | |||||||||||||
2024 | 36.26 | 41.55 | 51.87 | 62.77 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.11 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 33.99 | 38.61 | 48.36 | 58.99 | 69.41 | 80.59 | 85.38 | 83.12 | 75.88 | 64.27 | 48.24 | 35.35 | 59.98 | |||||||||||||
S.D. | 4.44 | 4.74 | 4.74 | 4.35 | 3.77 | 3.39 | 2.37 | 2.30 | 3.17 | 3.96 | 4.72 | 3.93 | 1.74 | |||||||||||||
SKEW | -0.35 | 0.44 | -0.21 | -0.37 | -0.47 | 0.15 | -0.16 | 0.13 | -0.22 | -0.51 | 0.44 | 0.46 | 0.08 | |||||||||||||
MAX | 42.35 | 55.93 | 57.84 | 68.40 | 76.00 | 91.33 | 90.13 | 89.19 | 82.97 | 72.61 | 63.93 | 47.03 | 64.47 | |||||||||||||
MIN | 23.16 | 27.10 | 36.13 | 45.11 | 57.14 | 73.93 | 79.34 | 78.42 | 68.53 | 52.87 | 38.00 | 25.07 | 55.29 | |||||||||||||
YRS | 72 | 73 | 71 | 71 | 71 | 68 | 69 | 70 | 70 | 71 | 69 | 66 | 55 |