YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.58 | 75.39 | 68.63 | 54.00 | 38.18 | b | 25.10 | 55.98 | f | |||||
1949 | 16.29 | 28.71 | 40.68 | 58.67 | 67.58 | 71.04 | c | 78.42 | 81.42 | 68.34 | a | ----- | z | 42.90 | a | 31.03 | 53.19 | a | ||||||||
1950 | 13.90 | 34.57 | 37.58 | 48.60 | 61.26 | 68.47 | 78.52 | 77.26 | 67.79 | a | 52.52 | 37.10 | 33.47 | a | 50.92 | |||||||||||
1951 | 26.32 | 33.11 | 35.10 | a | 54.97 | 63.00 | 65.40 | 80.39 | 74.81 | 61.13 | 45.00 | b | 35.47 | 23.10 | 49.82 | |||||||||||
1952 | 25.35 | 35.28 | 41.48 | 60.00 | 64.74 | 69.03 | 77.48 | 77.84 | 71.57 | 60.87 | 39.34 | a | 31.65 | 54.55 | ||||||||||||
1953 | 37.03 | 36.75 | 44.48 | 48.60 | 62.35 | 67.33 | 82.06 | 78.77 | 70.17 | 59.81 | 42.13 | 34.68 | 55.35 | |||||||||||||
1954 | 27.39 | 39.68 | 37.65 | 44.80 | 64.48 | 64.67 | 78.94 | 72.94 | 63.27 | 50.03 | 42.53 | 32.81 | 51.60 | |||||||||||||
1955 | 31.16 | 29.36 | 32.97 | 46.23 | 58.42 | 72.17 | 74.23 | 80.58 | 66.17 | 51.84 | 28.57 | 28.81 | 50.04 | |||||||||||||
1956 | 28.90 | 29.45 | 39.58 | 52.53 | 64.77 | 71.30 | 80.13 | 76.35 | 67.67 | 50.26 | 36.33 | 33.03 | 52.53 | |||||||||||||
1957 | 17.07 | a | 32.29 | 41.45 | 51.87 | 68.29 | 70.27 | 79.74 | 76.19 | 70.87 | 47.87 | 38.41 | a | 35.75 | c | 52.51 | ||||||||||
1958 | 33.03 | b | 35.39 | 41.61 | 51.40 | 74.58 | 71.73 | 77.55 | 83.24 | b | 66.57 | 54.26 | 36.30 | 32.58 | 54.85 | |||||||||||
1959 | 29.79 | b | 29.78 | a | 42.39 | 53.53 | 58.94 | 71.27 | 81.35 | 73.42 | 59.77 | 49.32 | 32.47 | 32.87 | 51.24 | |||||||||||
1960 | 25.90 | 32.86 | 41.13 | 51.77 | 60.61 | 71.33 | 84.39 | 70.23 | 67.77 | 53.10 | 35.45 | a | 27.29 | 51.82 | ||||||||||||
1961 | 31.19 | 37.86 | 43.03 | 47.33 | 61.90 | 79.73 | 81.13 | 84.61 | 59.67 | 49.74 | 34.10 | 29.33 | a | 53.30 | ||||||||||||
1962 | 26.84 | 32.54 | 39.26 | 57.17 | 60.65 | 72.70 | 77.39 | 75.45 | 67.67 | 53.00 | 41.40 | 35.74 | 53.32 | |||||||||||||
1963 | 19.32 | 40.11 | 45.10 | 54.30 | 63.87 | 69.47 | 77.73 | a | 79.32 | 71.28 | a | 56.90 | 40.37 | 29.71 | 53.96 | |||||||||||
1964 | 32.42 | 36.00 | 37.32 | 49.27 | 61.23 | a | 67.81 | d | 78.71 | 70.19 | 60.30 | 52.68 | 38.21 | b | 26.29 | 50.87 | ||||||||||
1965 | 32.94 | 34.57 | 37.28 | b | 53.30 | 61.29 | 68.17 | 79.52 | 76.26 | 54.41 | a | 57.74 | 40.53 | 33.94 | 52.49 | |||||||||||
1966 | 30.40 | a | 35.14 | 43.19 | 51.83 | a | 68.87 | 69.77 | 80.06 | 79.13 | 75.00 | 52.77 | a | 37.37 | 33.03 | 54.71 | ||||||||||
1967 | 33.74 | 38.11 | 37.97 | 48.53 | 63.10 | a | 72.80 | 84.90 | 87.39 | 80.10 | 54.65 | 38.03 | 28.00 | 55.61 | ||||||||||||
1968 | 29.74 | 39.21 | 49.19 | 51.17 | 64.03 | 70.43 | 80.87 | 72.65 | 63.33 | 49.70 | a | 38.79 | b | 24.94 | 52.84 | |||||||||||
1969 | 19.39 | 34.07 | 43.03 | 57.03 | 66.84 | 71.27 | 78.32 | 82.23 | 68.43 | 47.00 | 41.33 | 32.03 | 53.41 | |||||||||||||
1970 | 28.07 | a | 35.86 | 39.81 | 46.10 | 66.16 | 76.63 | 80.23 | 81.97 | 61.55 | a | 49.00 | 36.97 | 30.06 | 52.70 | |||||||||||
1971 | 28.10 | 35.26 | a | 38.45 | 53.37 | 67.00 | 68.10 | 78.06 | 85.16 | 62.57 | 50.19 | 37.77 | 27.35 | 52.62 | ||||||||||||
1972 | 24.39 | 33.41 | 44.90 | 49.20 | 63.23 | 72.45 | a | 74.60 | a | 82.37 | a | 62.79 | b | 50.87 | 38.40 | 25.26 | 51.82 | |||||||||
1973 | 27.23 | 34.92 | d | 45.61 | 52.93 | 66.74 | 71.20 | 84.13 | 85.23 | 68.80 | 53.70 | a | 34.10 | 32.39 | 54.75 | |||||||||||
1974 | 27.71 | 36.96 | 41.03 | a | 52.80 | 58.21 | c | 76.83 | 80.06 | 78.75 | c | 70.70 | 60.29 | 39.10 | 34.26 | 54.73 | ||||||||||
1975 | 29.77 | a | 28.75 | 37.47 | a | 46.07 | 60.65 | 67.27 | 84.45 | 71.13 | a | 67.07 | 48.79 | b | 36.47 | 33.97 | 50.99 | |||||||||
1976 | 32.13 | 36.17 | 39.77 | 53.37 | 68.03 | 66.47 | 78.84 | 73.37 | a | 68.77 | 54.29 | 39.77 | 35.00 | 53.83 | ||||||||||||
1977 | 27.23 | 39.32 | 41.23 | 59.73 | 61.23 | 76.76 | a | 76.65 | 74.23 | a | 61.87 | 52.87 | ----- | z | 27.06 | 54.38 | a | |||||||||
1978 | 29.03 | 34.54 | 45.48 | 53.17 | 57.13 | 73.73 | 77.03 | 71.52 | 64.30 | 56.19 | 33.83 | a | 25.19 | 51.76 | ||||||||||||
1979 | 15.03 | 31.18 | 43.71 | ----- | z | 64.43 | a | 74.27 | 81.29 | 81.65 | 72.14 | a | 57.43 | a | 34.75 | f | 36.26 | 55.74 | b | |||||||
1980 | 23.97 | 34.43 | a | 39.10 | 59.37 | 66.52 | b | ----- | z | 76.47 | a | 71.65 | 64.69 | a | 57.26 | 40.03 | 32.19 | 51.42 | a | |||||||
1981 | 33.70 | a | 35.64 | 48.55 | 53.37 | 63.23 | 64.50 | 77.33 | a | 82.74 | 69.07 | 52.74 | 41.97 | 31.33 | a | 54.51 | ||||||||||
1982 | 26.45 | b | 31.39 | 42.23 | a | 48.73 | 63.70 | d | 73.47 | 74.97 | 77.97 | 66.11 | b | 50.43 | a | 33.17 | a | 30.23 | a | 51.57 | ||||||
1983 | 34.84 | 38.79 | 43.97 | 54.39 | g | 66.19 | 69.78 | c | 73.52 | b | 80.48 | 63.76 | e | 53.50 | c | 39.14 | a | 20.11 | d | 53.10 | a | |||||
1984 | 32.50 | a | 39.11 | b | 42.90 | 54.07 | c | 59.03 | a | 68.82 | b | 81.97 | 80.61 | 60.87 | 47.77 | 35.86 | a | 24.96 | e | 52.37 | ||||||
1985 | 25.03 | 28.61 | 41.35 | 53.74 | c | 67.97 | a | 72.60 | 88.13 | a | 74.90 | b | 58.21 | b | 48.00 | 23.57 | 26.61 | 50.73 | ||||||||
1986 | 33.87 | 34.11 | 49.61 | 53.83 | 65.60 | a | 79.30 | 73.93 | b | 83.07 | a | 58.73 | 54.61 | 35.66 | a | 31.10 | 54.45 | |||||||||
1987 | 30.10 | 37.43 | 43.00 | a | 61.60 | 68.87 | 75.90 | 77.14 | c | 73.13 | a | 72.00 | b | 58.55 | 41.87 | 30.86 | b | 55.87 | ||||||||
1988 | 30.30 | a | 37.52 | 43.83 | a | 57.73 | 65.47 | a | 76.11 | b | 79.10 | 82.90 | a | 68.85 | c | 57.73 | a | 38.66 | a | 30.00 | b | 55.68 | ||||
1989 | 32.97 | 26.65 | b | 37.71 | 54.33 | 63.16 | 74.20 | 83.52 | 74.68 | 66.50 | 52.23 | 39.13 | 30.74 | 52.99 | ||||||||||||
1990 | 33.39 | 33.25 | 44.06 | 55.33 | 59.94 | 70.03 | 79.57 | a | 78.52 | 75.47 | 48.67 | a | 40.27 | 21.39 | c | 53.32 | ||||||||||
1991 | 26.16 | 40.67 | a | 40.26 | 52.67 | 61.42 | 67.03 | 80.45 | 82.35 | 70.10 | 53.12 | e | 34.97 | 32.42 | 53.47 | |||||||||||
1992 | 33.37 | a | 39.79 | 51.68 | 58.10 | 69.79 | b | 77.54 | b | 74.00 | a | 78.68 | c | 63.59 | a | 56.40 | a | 36.27 | 24.13 | 55.28 | ||||||
1993 | 24.48 | 27.65 | b | 43.69 | b | 52.90 | 70.41 | d | 68.92 | d | 66.43 | a | 72.68 | c | 64.82 | b | 53.68 | c | 32.23 | 31.65 | 50.80 | |||||
1994 | 35.52 | 29.82 | 46.10 | a | 55.55 | a | 66.90 | 71.67 | c | 82.39 | c | 82.96 | d | 73.77 | 52.50 | a | 33.73 | 31.35 | 55.19 | |||||||
1995 | 28.42 | 38.29 | 41.37 | a | 50.61 | b | 65.43 | a | 70.48 | c | 76.70 | a | 72.53 | a | 69.07 | b | 46.74 | 38.34 | a | 29.27 | a | 52.27 | ||||
1996 | 25.06 | 32.62 | 38.55 | 53.10 | 56.00 | 72.83 | 81.50 | c | 78.53 | a | ----- | z | 48.62 | b | 32.33 | 25.52 | 49.52 | a | ||||||||
1997 | 26.10 | 33.61 | 39.13 | a | 46.77 | 65.65 | 70.33 | c | 76.87 | 78.77 | 68.25 | b | 50.93 | a | 39.17 | 31.32 | 52.24 | |||||||||
1998 | 30.37 | a | 38.78 | a | 41.97 | 56.63 | 70.07 | d | 68.52 | a | 83.23 | a | 82.47 | a | 75.43 | 52.55 | 40.73 | 29.71 | 55.87 | |||||||
1999 | 33.87 | 36.64 | 45.67 | a | 55.03 | a | 62.87 | a | 67.47 | 76.90 | 81.27 | a | 67.37 | 54.13 | 43.97 | 32.69 | b | 54.82 | ||||||||
2000 | 31.35 | 35.48 | 43.33 | a | 56.55 | a | 63.13 | a | 70.63 | 81.39 | 82.33 | d | 63.50 | b | 53.76 | b | 33.90 | 27.67 | a | 53.59 | ||||||
2001 | 32.10 | 31.29 | 43.87 | 49.47 | 67.16 | 70.03 | 80.23 | 85.48 | b | 74.27 | 51.81 | 43.40 | 30.73 | a | 54.99 | |||||||||||
2002 | 31.45 | 34.07 | 34.45 | 50.37 | 59.87 | a | 72.45 | a | 83.40 | a | 75.79 | b | 67.87 | 50.03 | b | 39.63 | 33.55 | 52.74 | ||||||||
2003 | 33.90 | 34.32 | 39.60 | a | 55.24 | a | 63.63 | a | 73.97 | 88.13 | 87.17 | a | 71.13 | 57.94 | 33.28 | a | 31.13 | a | 55.79 | |||||||
2004 | 28.93 | b | 37.48 | 47.70 | a | 60.57 | b | 63.84 | 71.27 | 82.59 | b | 78.45 | 61.96 | b | 52.77 | a | 39.93 | a | 34.29 | 54.98 | ||||||
2005 | 29.97 | 40.43 | 45.39 | 56.30 | 65.87 | 69.47 | 82.55 | 80.16 | 67.34 | a | 53.55 | 36.83 | 26.94 | 54.57 | ||||||||||||
2006 | 36.23 | 32.64 | 42.74 | 56.10 | 68.19 | 76.70 | 87.43 | a | 82.39 | 71.30 | 54.10 | 36.97 | 31.65 | 56.37 | ||||||||||||
2007 | 28.77 | 34.96 | 46.97 | 56.07 | 68.26 | 75.07 | 91.06 | 81.35 | 69.47 | 54.13 | 40.10 | 31.55 | 56.48 | |||||||||||||
2008 | 29.16 | 36.48 | 41.68 | 48.87 | 64.73 | a | 72.32 | b | 82.93 | a | 80.32 | 67.50 | 54.19 | 43.20 | 24.55 | 53.83 | ||||||||||
2009 | 29.81 | 35.96 | 38.52 | 53.53 | 66.10 | 74.67 | 82.16 | 78.45 | 75.93 | 46.00 | 40.63 | 24.42 | 53.85 | |||||||||||||
2010 | 32.90 | 39.14 | 49.00 | 52.97 | 57.97 | 68.70 | 77.10 | 74.58 | 64.20 | 54.68 | 34.07 | 28.81 | 52.84 | |||||||||||||
2011 | 29.29 | 28.32 | 41.19 | 45.57 | 60.87 | 64.70 | 77.81 | 82.13 | 72.23 | 52.52 | 38.47 | 33.58 | 52.22 | |||||||||||||
2012 | 34.32 | 34.21 | a | 44.29 | 57.63 | 61.16 | 68.03 | 82.61 | 81.10 | 73.10 | 51.13 | 40.30 | 31.71 | 54.97 | ||||||||||||
2013 | 32.00 | 37.18 | 43.42 | 50.23 | 66.03 | 71.20 | 84.45 | 81.23 | 69.37 | 50.58 | 34.53 | 26.52 | 53.89 | |||||||||||||
2014 | 32.74 | 26.75 | 39.10 | 53.00 | 66.55 | 67.17 | 82.55 | 78.65 | 68.47 | 56.90 | 34.93 | 29.55 | 53.03 | |||||||||||||
2015 | 31.03 | 38.50 | 50.10 | 56.73 | 66.13 | 79.97 | 81.90 | 83.53 | a | 68.90 | 60.48 | 37.70 | 31.87 | 57.24 | ||||||||||||
2016 | 30.87 | 40.21 | 44.81 | 62.73 | 64.06 | 74.77 | 78.16 | 79.03 | 65.27 | 48.90 | 44.43 | 24.74 | 54.83 | |||||||||||||
2017 | 25.35 | 32.71 | 43.00 | 50.13 | 67.32 | 73.52 | a | 86.61 | 83.10 | 68.00 | a | 52.16 | 37.50 | 25.74 | 53.76 | |||||||||||
2018 | 32.67 | a | 26.11 | 42.16 | 50.34 | a | 70.48 | 70.17 | 82.52 | 81.13 | 66.67 | 52.26 | 36.70 | 32.52 | 53.64 | |||||||||||
2019 | 32.06 | 21.79 | 41.52 | 51.10 | 64.58 | 71.53 | 78.58 | 80.03 | 66.10 | 47.16 | 37.47 | 35.19 | 52.26 | |||||||||||||
2020 | 32.00 | 37.71 | a | 42.55 | 52.90 | 63.06 | 72.17 | 81.00 | 84.03 | 75.07 | 53.97 | 44.00 | 38.35 | 56.40 | ||||||||||||
2021 | 39.55 | 31.81 | a | 52.81 | 59.03 | 66.35 | 80.03 | 88.94 | 80.61 | 72.23 | 59.32 | 44.33 | 31.84 | 58.91 | ||||||||||||
2022 | 32.74 | 34.89 | 47.00 | 47.33 | 60.00 | 69.30 | 83.94 | 84.61 | 73.67 | 59.03 | 30.10 | 23.71 | 53.86 | |||||||||||||
2023 | 31.61 | 33.54 | 39.84 | 52.10 | 71.26 | 74.70 | 85.58 | 83.00 | 68.30 | 53.19 | 37.60 | 33.58 | 55.36 | |||||||||||||
2024 | 25.00 | 35.86 | 44.56 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.14 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.25 | 34.45 | 42.41 | 53.12 | 64.38 | 71.51 | 80.26 | 79.09 | 67.59 | 52.90 | 37.74 | 30.05 | 53.63 | |||||||||||||
S.D. | 4.92 | 3.92 | 3.86 | 4.06 | 3.64 | 3.64 | 4.06 | 4.25 | 4.79 | 3.66 | 3.80 | 3.83 | 1.81 | |||||||||||||
SKEW | -1.09 | -0.70 | 0.28 | 0.09 | 0.04 | 0.39 | -0.07 | -0.33 | -0.13 | 0.19 | -0.75 | -0.42 | 0.16 | |||||||||||||
MAX | 39.55 | 40.67 | 52.81 | 62.73 | 74.58 | 80.03 | 91.06 | 87.39 | 80.10 | 60.87 | 44.43 | 38.35 | 58.91 | |||||||||||||
MIN | 13.90 | 21.79 | 32.97 | 44.80 | 56.00 | 64.50 | 66.43 | 70.19 | 54.41 | 45.00 | 23.57 | 20.11 | 49.82 | |||||||||||||
YRS | 76 | 76 | 76 | 73 | 75 | 74 | 76 | 76 | 75 | 75 | 74 | 76 | 69 |