YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1940 | 16.35 | ----- | z | 28.19 | 48.80 | 61.45 | 74.23 | 81.52 | 74.39 | 71.37 | 59.13 | 36.13 | 28.35 | 52.72 | a | |||||||||||
1941 | 23.68 | 24.61 | 33.45 | 60.60 | 71.13 | 78.20 | 82.23 | 78.87 | 70.53 | 56.23 | 42.83 | 33.40 | a | 54.65 | ||||||||||||
1942 | 26.33 | a | 28.23 | f | 37.84 | 62.50 | 62.58 | 73.55 | a | 78.00 | 76.83 | a | 64.93 | 59.42 | 39.73 | 21.42 | 54.83 | a | ||||||||
1943 | 18.07 | a | 26.67 | a | 28.50 | a | 50.03 | 63.87 | 76.13 | 82.10 | 79.10 | 64.63 | 57.68 | 34.97 | 30.27 | a | 51.00 | |||||||||
1944 | 31.93 | a | 28.55 | 30.90 | 50.21 | a | 69.61 | 76.23 | 79.61 | 81.30 | a | 69.03 | a | 59.13 | 42.41 | a | 24.32 | c | 53.60 | |||||||
1945 | 16.70 | a | 25.88 | b | 49.17 | a | 52.37 | c | 60.97 | 71.07 | 76.68 | 77.68 | 67.50 | b | 56.38 | b | 39.04 | c | 21.19 | 51.22 | ||||||
1946 | 25.14 | c | 24.62 | b | 48.42 | 58.41 | a | 64.97 | 74.47 | 80.97 | 77.26 | 67.63 | 60.93 | c | 40.76 | a | 30.11 | d | 54.47 | |||||||
1947 | 26.35 | 21.74 | a | 34.00 | e | 48.33 | 59.90 | a | 72.07 | 82.00 | 86.03 | a | 70.38 | a | 67.89 | d | 33.62 | a | 26.67 | d | 52.42 | |||||
1948 | 12.23 | r | 23.52 | 36.13 | 57.59 | a | 67.55 | 77.53 | 82.29 | 81.97 | 76.57 | 57.68 | 40.03 | 26.87 | a | 57.07 | a | |||||||||
1949 | 24.23 | a | 24.68 | 34.74 | 57.45 | h | 70.39 | 82.77 | d | 82.14 | b | 80.94 | 66.73 | d | ----- | z | 33.90 | j | 27.97 | 54.95 | c | |||||
1950 | 21.77 | a | 25.14 | 30.42 | 41.97 | 66.55 | 76.03 | 77.19 | 74.16 | 69.27 | 62.90 | 36.00 | 21.29 | 50.22 | ||||||||||||
1951 | 19.65 | 25.82 | 31.42 | 49.50 | 70.94 | 72.27 | 78.55 | 73.81 | 65.37 | 55.45 | 32.13 | 24.03 | 49.91 | |||||||||||||
1952 | 24.26 | 30.14 | 33.68 | 59.37 | 66.13 | 77.43 | 81.42 | 77.23 | 72.03 | 53.84 | 43.77 | 30.13 | 54.12 | |||||||||||||
1953 | 25.97 | 26.18 | 35.90 | 47.93 | 68.65 | 78.33 | 79.58 | 79.39 | 70.83 | 66.00 | 47.17 | 30.65 | 54.71 | |||||||||||||
1954 | 21.39 | 35.89 | 34.10 | 54.47 | 59.71 | 77.57 | 79.58 | 76.35 | 65.27 | 53.65 | 42.87 | 28.13 | 52.41 | |||||||||||||
1955 | 20.81 | 24.29 | 33.10 | 60.17 | 70.29 | 74.87 | 85.00 | a | 83.29 | 70.17 | 57.84 | 34.50 | 21.45 | 52.98 | ||||||||||||
1956 | 26.19 | 26.24 | 32.68 | 47.97 | 64.06 | 79.20 | 74.84 | 76.61 | 66.40 | 65.10 | 38.83 | 29.35 | 52.29 | |||||||||||||
1957 | 16.16 | 28.07 | a | 37.65 | 55.03 | 64.35 | 74.93 | 82.26 | 76.97 | 67.00 | 55.97 | 37.67 | 29.29 | 52.11 | ||||||||||||
1958 | 26.61 | 22.50 | 40.03 | 55.97 | 68.10 | 72.03 | 78.45 | 78.68 | 68.93 | 60.83 | g | 40.48 | c | 20.68 | 52.04 | a | ||||||||||
1959 | 16.13 | 23.18 | 36.74 | 53.43 | 70.32 | i | 77.97 | a | 80.97 | 81.16 | 69.97 | 50.42 | 30.63 | 33.35 | 50.36 | a | ||||||||||
1960 | 24.10 | 27.83 | 30.58 | 53.80 | 64.19 | 71.70 | 79.45 | 79.13 | 69.20 | 57.29 | 43.03 | 25.68 | 52.17 | |||||||||||||
1961 | 22.35 | 34.32 | 39.68 | 48.97 | 65.42 | 77.47 | 79.10 | 79.74 | 68.37 | 59.32 | 38.93 | 23.90 | 53.13 | |||||||||||||
1962 | 16.74 | 21.75 | 37.45 | 52.20 | 68.71 | 75.40 | 76.71 | 78.42 | 65.63 | 57.94 | 41.33 | 25.52 | 51.48 | |||||||||||||
1963 | 11.23 | 19.89 | 40.97 | 57.47 | 64.74 | 80.57 | 82.13 | 77.29 | 69.43 | 68.03 | 45.77 | 20.19 | 53.14 | |||||||||||||
1964 | 28.61 | 31.66 | 35.87 | 55.13 | 71.40 | a | 78.33 | 82.68 | 74.06 | 64.73 | 55.55 | 43.97 | 22.81 | 53.73 | ||||||||||||
1965 | 19.10 | 22.82 | 30.03 | 48.13 | 69.74 | 74.63 | 78.45 | 75.29 | 62.37 | 57.03 | 39.97 | 31.77 | 50.78 | |||||||||||||
1966 | 16.45 | 27.86 | 40.90 | 49.77 | 61.90 | 78.80 | 84.48 | 74.81 | 69.07 | 56.81 | 38.27 | 26.94 | 52.17 | |||||||||||||
1967 | 25.52 | 21.29 | 37.16 | 52.77 | 60.58 | 74.00 | 77.48 | 74.90 | 70.17 | 54.65 | 36.00 | 28.03 | 51.05 | |||||||||||||
1968 | 22.81 | 24.41 | 46.94 | 55.67 | 62.61 | 74.50 | 77.87 | 78.10 | 68.73 | 57.16 | 39.03 | 25.48 | 52.78 | |||||||||||||
1969 | 19.81 | 30.36 | 34.94 | 56.77 | 68.48 | 66.23 | 80.06 | 83.45 | 69.93 | 51.61 | 39.60 | 27.68 | 52.41 | |||||||||||||
1970 | 16.94 | 26.14 | 35.32 | 55.07 | 65.94 | 77.60 | 82.48 | 80.23 | 68.93 | 57.71 | 38.37 | 26.90 | 52.64 | |||||||||||||
1971 | 15.81 | 25.04 | 33.94 | 54.63 | 64.97 | 79.97 | 77.26 | 76.19 | 69.90 | 61.52 | 40.00 | 27.90 | 52.26 | |||||||||||||
1972 | 17.48 | 22.72 | 33.65 | 48.67 | 73.35 | 75.93 | 76.97 | 75.97 | 66.73 | 51.74 | 36.33 | 21.65 | 50.10 | |||||||||||||
1973 | 26.42 | 28.54 | 46.71 | 50.87 | 60.90 | 77.57 | 82.19 | 80.19 | 68.43 | 62.52 | 39.70 | 25.81 | 54.15 | |||||||||||||
1974 | 22.48 | 27.29 | 36.00 | 55.67 | 61.52 | 72.53 | 83.48 | 77.29 | 63.83 | 56.39 | 41.07 | 31.16 | 52.39 | |||||||||||||
1975 | 25.06 | 27.29 | 33.19 | 48.03 | 71.74 | 74.53 | 81.77 | 78.10 | 64.20 | 61.45 | 47.43 | 26.35 | 53.26 | |||||||||||||
1976 | 20.55 | 33.55 | 37.29 | 57.73 | 66.03 | 81.30 | 84.94 | 81.00 | 70.63 | 52.29 | 33.90 | 19.06 | 53.19 | |||||||||||||
1977 | 11.61 | 29.46 | 44.29 | 61.23 | 77.81 | 74.40 | 82.45 | 74.68 | 66.40 | 56.71 | 39.00 | 23.58 | 53.47 | |||||||||||||
1978 | 19.29 | 23.14 | 38.39 | 50.93 | 69.65 | 74.27 | 75.94 | 78.84 | 72.03 | 53.97 | 39.17 | 22.94 | 51.55 | |||||||||||||
1979 | 13.32 | 20.43 | 35.87 | 49.53 | 62.06 | 75.10 | 80.65 | 74.77 | 70.97 | 52.48 | 37.13 | 32.97 | 50.44 | |||||||||||||
1980 | 22.06 | 25.21 | 35.29 | 56.40 | 71.58 | 74.63 | 82.77 | 76.87 | 67.00 | 51.03 | 41.70 | 24.90 | 52.45 | |||||||||||||
1981 | 25.03 | 29.29 | 43.77 | 56.63 | 67.29 | 74.93 | 79.84 | 76.94 | 65.83 | 53.00 | 45.30 | 27.48 | 53.78 | |||||||||||||
1982 | 15.39 | 25.71 | 35.23 | 50.67 | 71.19 | 71.20 | 80.84 | 76.03 | 65.77 | 56.52 | 38.57 | 31.68 | 51.57 | |||||||||||||
1983 | 26.39 | 32.79 | 39.19 | 49.20 | 60.35 | 77.00 | 84.68 | 82.90 | 69.17 | 55.52 | 40.43 | 15.48 | 52.76 | |||||||||||||
1984 | 20.48 | 34.93 | 33.48 | 55.90 | 63.77 | 76.43 | 78.48 | 79.00 | 65.90 | 56.94 | 40.43 | 28.03 | 52.82 | |||||||||||||
1985 | 20.29 | 25.79 | 43.00 | 58.67 | 71.13 | 74.00 | 80.23 | 74.87 | 66.43 | 56.19 | 32.73 | 16.58 | 51.66 | |||||||||||||
1986 | 25.00 | 25.61 | 41.68 | 58.13 | 70.29 | 76.30 | 80.39 | 74.52 | 66.60 | 55.84 | 35.83 | a | 28.71 | 53.24 | ||||||||||||
1987 | 27.61 | 36.54 | 44.94 | 61.97 | 71.87 | 80.27 | 82.84 | 76.61 | 70.57 | 49.65 | 43.20 | 31.58 | 56.47 | |||||||||||||
1988 | 19.90 | 24.18 | a | 40.16 | 56.13 | 75.26 | 82.63 | 86.29 | 81.90 | 70.20 | 49.87 | 40.70 | 26.87 | 54.51 | ||||||||||||
1989 | 29.39 | 20.82 | 33.90 | 51.63 | 67.23 | 74.30 | 82.42 | 78.90 | 69.67 | 59.32 | 35.73 | 16.39 | 51.64 | |||||||||||||
1990 | 32.97 | 31.00 | 42.94 | 56.87 | 63.65 | 75.17 | 77.94 | 77.19 | 69.87 | 55.39 | 46.43 | 25.90 | 54.61 | |||||||||||||
1991 | 19.77 | 31.79 | 41.00 | 58.03 | 69.39 | 79.67 | 77.55 | 79.19 | 65.33 | 54.32 | 33.93 | 28.23 | 53.18 | |||||||||||||
1992 | 27.16 | 32.07 | 38.03 | 49.50 | 69.48 | 72.53 | 73.42 | 74.42 | 66.17 | 55.06 | 35.57 | 28.10 | 51.79 | |||||||||||||
1993 | 24.29 | 25.86 | 39.58 | 50.30 | 64.61 | 71.40 | 77.48 | 78.39 | 62.47 | 54.10 | 36.90 | 28.06 | 51.12 | |||||||||||||
1994 | 13.10 | 22.86 | 41.68 | 54.00 | 69.68 | 79.63 | 77.58 | 74.58 | 72.27 | 58.97 | 45.33 | 33.90 | 53.63 | |||||||||||||
1995 | 25.29 | 26.32 | 42.77 | 48.07 | 66.48 | 82.13 | 81.32 | 80.35 | 68.07 | 55.61 | 32.07 | 23.71 | 52.68 | |||||||||||||
1996 | 21.42 | 25.17 | 33.26 | 49.77 | 63.65 | 74.33 | 75.61 | 79.68 | 68.50 | 57.84 | 33.80 | 24.97 | 50.67 | |||||||||||||
1997 | 20.55 | 30.04 | 37.87 | 53.40 | 61.35 | 78.43 | 78.26 | 74.29 | 69.77 | 57.39 | 36.90 | 32.90 | 52.60 | |||||||||||||
1998 | 27.68 | 38.54 | 39.90 | 61.50 | 74.94 | 74.77 | 82.32 | 80.74 | 76.93 | 59.35 | 45.03 | 34.87 | 58.05 | |||||||||||||
1999 | 20.87 | 34.96 | 43.48 | 59.23 | 69.97 | 77.33 | 84.26 | 77.00 | 69.57 | 57.23 | 50.07 | 31.71 | 56.31 | |||||||||||||
2000 | 24.77 | 35.55 | 50.13 | 54.50 | 69.03 | 73.33 | 78.90 | 78.97 | 68.67 | 61.16 | 38.50 | 17.65 | 54.26 | |||||||||||||
2001 | 28.10 | 23.25 | 36.61 | 57.90 | 67.97 | 75.53 | 82.94 | 81.19 | 68.58 | f | 55.74 | 50.43 | 33.94 | 53.96 | a | |||||||||||
2002 | 32.19 | 35.25 | 32.77 | 52.20 | 61.61 | 76.50 | 83.84 | 77.58 | 71.43 | 47.90 | 38.57 | 30.84 | 53.39 | |||||||||||||
2003 | 20.94 | 22.36 | 38.52 | 53.53 | 65.77 | 75.40 | 80.06 | 82.39 | 70.27 | 57.03 | 39.37 | 32.23 | 53.15 | |||||||||||||
2004 | 17.32 | 30.48 | 39.71 | 56.00 | 63.90 | 73.33 | 77.74 | 73.00 | 75.43 | 56.87 | 43.77 | 27.29 | 52.90 | |||||||||||||
2005 | 21.61 | 31.71 | 36.81 | 60.30 | 63.84 | 82.23 | 83.65 | 79.61 | 74.70 | 59.61 | 41.47 | 24.84 | 55.03 | |||||||||||||
2006 | 32.10 | 25.64 | 40.19 | 61.47 | 67.65 | 77.63 | 86.48 | 77.61 | 66.73 | 51.26 | 43.27 | 32.61 | 55.22 | |||||||||||||
2007 | 26.45 | 18.71 | 43.87 | 53.90 | 71.42 | 79.27 | 81.68 | 78.06 | 71.57 | 61.29 | 39.27 | 24.84 | 54.19 | |||||||||||||
2008 | 21.55 | 22.31 | 33.61 | 52.50 | 64.42 | 75.00 | 81.10 | 80.29 | 70.37 | 56.74 | 39.97 | 21.16 | 51.58 | |||||||||||||
2009 | 15.48 | 27.96 | 38.29 | 54.13 | 66.13 | 73.87 | 75.29 | 75.23 | 73.50 | 48.13 | 48.70 | 24.58 | 51.77 | |||||||||||||
2010 | 22.58 | 29.82 | 50.10 | 62.33 | 69.58 | 73.27 | 80.45 | 81.06 | 66.17 | 59.81 | 41.77 | 23.71 | 55.05 | |||||||||||||
2011 | 17.74 | 26.79 | 36.23 | 49.60 | 65.19 | 75.60 | 84.03 | 79.10 | 66.83 | 59.94 | 43.83 | 31.61 | 53.04 | |||||||||||||
2012 | 29.32 | 33.07 | 55.29 | 57.53 | 72.68 | 80.67 | 87.97 | 80.55 | 70.60 | 55.00 | 42.37 | 31.58 | 58.05 | |||||||||||||
2013 | 25.06 | 25.57 | 32.87 | 46.10 | 67.84 | 74.07 | 80.45 | 80.42 | 72.73 | 55.45 | 37.70 | 19.03 | 51.44 | |||||||||||||
2014 | 14.87 | 16.29 | 30.81 | 48.53 | 67.35 | 77.90 | 76.42 | 77.13 | 68.63 | 54.06 | 30.57 | 27.65 | 49.18 | |||||||||||||
2015 | 21.45 | 15.86 | 42.00 | 57.30 | 68.90 | 75.10 | 80.90 | 75.77 | 75.00 | 58.00 | 47.93 | 36.32 | 54.55 | |||||||||||||
2016 | 24.42 | 30.79 | 47.13 | 53.90 | 70.45 | 78.50 | 80.10 | 79.19 | 71.33 | 59.55 | 50.07 | 24.48 | 55.83 | |||||||||||||
2017 | 24.19 | 34.71 | 38.03 | 56.93 | 63.97 | 76.40 | 80.16 | 73.94 | 72.83 | 58.55 | 38.73 | 22.03 | 53.37 | |||||||||||||
2018 | 24.10 | 25.18 | 37.58 | 43.67 | 75.58 | 78.00 | 82.13 | 79.42 | 70.07 | 50.87 | 31.90 | 30.16 | 52.39 | |||||||||||||
2019 | 19.00 | 22.04 | 35.00 | 50.93 | 62.16 | 74.23 | 81.55 | 75.71 | 69.80 | 51.68 | 33.33 | 28.03 | 50.29 | |||||||||||||
2020 | 27.48 | 27.72 | 40.48 | 50.20 | 63.97 | 78.03 | 81.84 | 79.48 | 66.13 | 49.00 | 46.37 | 31.13 | 53.49 | |||||||||||||
2021 | 26.39 | 19.68 | 48.52 | 58.03 | 68.32 | 83.20 | 82.97 | 82.10 | 75.07 | 64.48 | 43.93 | 33.61 | 57.19 | |||||||||||||
2022 | 20.39 | 25.46 | 37.81 | 49.17 | 70.60 | a | 79.00 | 82.29 | 79.97 | 72.43 | 59.35 | 44.00 | 27.13 | 53.97 | ||||||||||||
2023 | 28.00 | 31.64 | 37.87 | 54.27 | 71.58 | 81.40 | 81.10 | 80.10 | 73.40 | 57.13 | 43.97 | 38.61 | 56.59 | |||||||||||||
2024 | 26.45 | 42.03 | 45.79 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.09 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 22.38 | 27.14 | 38.28 | 53.84 | 67.06 | 76.27 | 80.60 | 78.18 | 69.08 | 56.77 | 40.02 | 27.03 | 53.04 | |||||||||||||
S.D. | 4.87 | 5.05 | 5.45 | 4.54 | 4.07 | 3.12 | 2.82 | 2.69 | 3.10 | 4.13 | 4.66 | 4.78 | 1.82 | |||||||||||||
SKEW | -0.11 | 0.41 | 0.66 | -0.09 | 0.19 | 0.01 | -0.07 | 0.22 | 0.25 | 0.29 | 0.12 | -0.21 | 0.58 | |||||||||||||
MAX | 32.97 | 42.03 | 55.29 | 62.50 | 77.81 | 83.20 | 87.97 | 86.03 | 76.93 | 68.03 | 50.43 | 38.61 | 58.05 | |||||||||||||
MIN | 11.23 | 15.86 | 28.19 | 41.97 | 59.71 | 66.23 | 73.42 | 73.00 | 62.37 | 47.90 | 30.57 | 15.48 | 49.18 | |||||||||||||
YRS | 84 | 83 | 85 | 83 | 83 | 84 | 84 | 84 | 83 | 82 | 83 | 84 | 77 |