YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1947 | 37.40 | 37.70 | 45.02 | 56.68 | 66.60 | 78.27 | 80.13 | 78.31 | 73.30 | 66.02 | 43.25 | 41.98 | 58.72 | |||||||||||||
1948 | 36.10 | b | 40.60 | 45.53 | 65.43 | 69.52 | 78.88 | 80.24 | 79.81 | 71.45 | 59.82 | 45.68 | 43.81 | 59.74 | ||||||||||||
1949 | 31.26 | 43.43 | 51.03 | 57.05 | 68.85 | 76.02 | 79.76 | 76.05 | 69.65 | 58.77 | 54.18 | 41.08 | 58.93 | |||||||||||||
1950 | 42.98 | 47.59 | 49.87 | 59.42 | 68.11 | 77.50 | 76.08 | 75.84 | 68.65 | 64.87 | 48.27 | 40.24 | 59.95 | |||||||||||||
1951 | 37.52 | 44.05 | 48.92 | a | 57.15 | 68.52 | 76.13 | 82.05 | 79.90 | 72.10 | 61.76 | 45.00 | 42.26 | 59.61 | ||||||||||||
1952 | 44.35 | 44.28 | 47.81 | 57.57 | 68.06 | 80.58 | 77.73 | 81.56 | 69.72 | 58.63 | 44.67 | 40.27 | 59.60 | |||||||||||||
1953 | 46.61 | 42.70 | 55.16 | 58.13 | 67.15 | 83.07 | 80.60 | 78.31 | 72.03 | 61.23 | 49.07 | 38.23 | 61.02 | |||||||||||||
1954 | 41.53 | 48.93 | 48.58 | 64.55 | 63.56 | 77.42 | 81.21 | 79.53 | 74.73 | 61.87 | 50.62 | 42.68 | 61.27 | |||||||||||||
1955 | 39.65 | 40.00 | 50.05 | 61.22 | 68.85 | 75.77 | 78.87 | 77.90 | 71.97 | 60.39 | 47.13 | 44.39 | 59.68 | |||||||||||||
1956 | 40.50 | 38.50 | 51.74 | 58.40 | 72.69 | 79.95 | 79.90 | 78.21 | 73.67 | 63.73 | 45.28 | 43.92 | 60.54 | |||||||||||||
1957 | 40.38 | a | 49.68 | 49.53 | 55.72 | 64.76 | 75.05 | 81.42 | 79.00 | 68.58 | 58.24 | 42.70 | 44.06 | 59.09 | ||||||||||||
1958 | 36.81 | 40.57 | 41.31 | 55.38 | 68.94 | 79.27 | 80.87 | 79.02 | 71.83 | 59.45 | 49.87 | 39.63 | 58.58 | |||||||||||||
1959 | 37.85 | 42.54 | 48.97 | 58.53 | 69.95 | 76.58 | 77.11 | 79.23 | 72.87 | 58.34 | 44.42 | 42.31 | 59.06 | |||||||||||||
1960 | 37.44 | 36.00 | 45.85 | 62.08 | 68.84 | 78.72 | 77.69 | 78.82 | 72.47 | 62.08 | 50.72 | 36.56 | 58.94 | |||||||||||||
1961 | 35.58 | 41.43 | 50.44 | 60.25 | 69.47 | 74.98 | 76.29 | 75.98 | 69.87 | 61.16 | 44.70 | 39.29 | 58.29 | |||||||||||||
1962 | 34.40 | 48.41 | 47.55 | 60.35 | 74.58 | 74.78 | 78.69 | 78.16 | 70.75 | 62.68 | 50.50 | 42.37 | 60.27 | |||||||||||||
1963 | 33.57 | a | 42.45 | 52.97 | 64.25 | 70.47 | 76.17 | 81.87 | 78.95 | 72.88 | 65.77 | 50.67 | 36.65 | 60.55 | ||||||||||||
1964 | 38.76 | 36.48 | 49.19 | 61.47 | 71.29 | 76.67 | 82.00 | 79.89 | 70.92 | 62.10 | 50.45 | 42.81 | 60.17 | |||||||||||||
1965 | 44.26 | 40.36 | 42.81 | 63.58 | 71.08 | 77.43 | 81.65 | 77.95 | 72.93 | 63.50 | 57.27 | 46.97 | 61.65 | |||||||||||||
1966 | 34.21 | 40.52 | 55.65 | 60.42 | 69.79 | 78.53 | 85.37 | 76.74 | 71.52 | 60.94 | 55.58 | 38.02 | 60.61 | |||||||||||||
1967 | 40.66 | 41.45 | 55.81 | 64.03 | 66.00 | 75.18 | 76.97 | 74.82 | 68.52 | 60.44 | 49.27 | 36.77 | 59.16 | |||||||||||||
1968 | 40.65 | 38.48 | 48.42 | 55.22 | 65.48 | 74.52 | 75.27 | 74.21 | 66.67 | 61.84 | 46.58 | 39.87 | 57.27 | |||||||||||||
1969 | 44.92 | 43.30 | 41.50 | 61.77 | 68.40 | 76.88 | 83.32 | 79.60 | 70.17 | 56.44 | 48.55 | 43.08 | 59.83 | |||||||||||||
1970 | 37.42 | 45.52 | 46.21 | 58.53 | 68.65 | 75.68 | 80.81 | 79.03 | 71.45 | 56.63 | 48.67 | 45.10 | 59.47 | |||||||||||||
1971 | 41.39 | 42.70 | 51.02 | 59.68 | 68.82 | 78.35 | 80.03 | 73.42 | 70.35 | 61.92 | 50.82 | 43.65 | 60.18 | |||||||||||||
1972 | 41.29 | 45.88 | 56.31 | 65.68 | 67.34 | 76.88 | 76.52 | 74.32 | 70.95 | 59.61 | 42.37 | 37.95 | 59.59 | |||||||||||||
1973 | 34.84 | 40.16 | 51.35 | 55.07 | 67.79 | 76.90 | 77.24 | 77.65 | 70.30 | 63.90 | 53.48 | 42.15 | 59.24 | |||||||||||||
1974 | 41.34 | 45.55 | 58.52 | 63.08 | 75.02 | 78.55 | 80.58 | 74.39 | 63.93 | 59.90 | 48.05 | 40.53 | 60.79 | |||||||||||||
1975 | 40.77 | 41.02 | 49.48 | 58.70 | 67.61 | 77.38 | 75.39 | 77.47 | 67.42 | 62.44 | 50.23 | 42.81 | 59.23 | |||||||||||||
1976 | 39.61 | 51.16 | 52.10 | 62.35 | 65.97 | 77.03 | 74.98 | 77.89 | 69.97 | 54.05 | 42.58 | 40.21 | 58.99 | |||||||||||||
1977 | 34.45 | 46.16 | 51.94 | 60.35 | 71.84 | 79.30 | 80.32 | 79.45 | 77.43 | 63.27 | 52.25 | 44.97 | 61.81 | |||||||||||||
1978 | 32.05 | 33.89 | 51.63 | 65.10 | 70.08 | 78.97 | 82.84 | 78.18 | 71.97 | 62.05 | 49.90 | 38.03 | 59.56 | |||||||||||||
1979 | 31.73 | 41.88 | 52.84 | 61.75 | 69.19 | 76.73 | 81.77 | 77.39 | 73.18 | 64.56 | 45.68 | 42.47 | 59.93 | |||||||||||||
1980 | 40.31 | 44.31 | 50.77 | 59.00 | 68.71 | 83.08 | 84.27 | 80.58 | 73.03 | 60.18 | 45.93 | 45.69 | 61.32 | |||||||||||||
1981 | 41.68 | 44.68 | 51.23 | 64.00 | 68.10 | 79.60 | 81.69 | 76.21 | 70.45 | 59.63 | 53.32 | 43.94 | 61.21 | |||||||||||||
1982 | 39.69 | 42.32 | 53.68 | 59.23 | 67.81 | 73.52 | 80.10 | 81.00 | 74.38 | 60.53 | 48.60 | 38.26 | 59.93 | |||||||||||||
1983 | 32.48 | 42.82 | 50.94 | 54.75 | 65.85 | 74.03 | 80.60 | 80.42 | 74.62 | 63.55 | 52.42 | 31.69 | 58.68 | |||||||||||||
1984 | 37.84 | 45.24 | 49.40 | 57.98 | 71.21 | 76.82 | 78.26 | 78.15 | 69.33 | 59.50 | 49.42 | 43.90 | 59.75 | |||||||||||||
1985 | 35.58 | 41.82 | 52.32 | 63.00 | 69.98 | 75.45 | 79.66 | 81.45 | 71.37 | 61.18 | 49.78 | 37.92 | 59.96 | |||||||||||||
1986 | 44.35 | 45.57 | 56.50 | 64.15 | 69.84 | 75.90 | 81.85 | 77.63 | 71.47 | 59.63 | 46.98 | 40.48 | 61.20 | |||||||||||||
1987 | 38.21 | 44.91 | 48.08 | 58.88 | 68.74 | 76.10 | 79.47 | 79.35 | 70.90 | 63.05 | 49.78 | 39.53 | 59.75 | |||||||||||||
1988 | 36.32 | 42.74 | 50.11 | 59.92 | 68.84 | 77.95 | 79.31 | 79.61 | 71.40 | 62.87 | 51.93 | 41.92 | 60.24 | |||||||||||||
1989 | 44.65 | 38.38 | 54.52 | 64.75 | 73.03 | 74.47 | 81.35 | 79.03 | 69.02 | 64.02 | 51.02 | 35.32 | 60.80 | |||||||||||||
1990 | 43.16 | 46.86 | 51.66 | 61.58 | 69.47 | 84.40 | 77.63 | 78.37 | 73.65 | 61.60 | 53.15 | 38.90 | 61.70 | |||||||||||||
1991 | 37.76 | 48.93 | 53.97 | 63.77 | 73.63 | 77.60 | 79.56 | 77.89 | 68.02 | 62.16 | 45.20 | 43.11 | 60.97 | |||||||||||||
1992 | 39.53 | 48.64 | 55.03 | 62.37 | 67.21 | 75.60 | 80.74 | 76.52 | 73.28 | 64.29 | 46.33 | 41.65 | 60.93 | |||||||||||||
1993 | 39.32 | 42.20 | 51.10 | 60.33 | 69.31 | 78.37 | 82.21 | 79.87 | 71.97 | 59.32 | 45.50 | 43.15 | 60.22 | |||||||||||||
1994 | 40.60 | 43.93 | 53.08 | 61.05 | 69.44 | 82.62 | 82.08 | 80.66 | 73.27 | 62.81 | 52.00 | 45.27 | 62.23 | |||||||||||||
1995 | 42.35 | 48.04 | 51.73 | 60.53 | 68.11 | 76.88 | 82.74 | 80.03 | 69.60 | 61.35 | 51.47 | 42.53 | 61.28 | |||||||||||||
1996 | 38.90 | a | 46.72 | 48.05 | 61.07 | 76.71 | 78.67 | 79.90 | 76.74 | 68.77 | 60.58 | 49.38 | 43.95 | 60.79 | ||||||||||||
1997 | 38.13 | 41.20 | 53.74 | 53.83 | 66.87 | 74.50 | 80.56 | 79.45 | a | 74.57 | 60.48 | 45.53 | 36.98 | 58.82 | ||||||||||||
1998 | 43.98 | 43.54 | 47.85 | 57.33 | 74.23 | 81.50 | 83.95 | 76.95 | 76.30 | 64.19 | 52.42 | 41.10 | 61.95 | |||||||||||||
1999 | 43.53 | 50.25 | 50.05 | 59.77 | 67.13 | 75.43 | 80.53 | 81.37 | 69.98 | 60.37 | 54.38 | 40.89 | 61.14 | |||||||||||||
2000 | 43.02 | 51.30 | a | 53.66 | 62.07 | 74.63 | 74.02 | 80.45 | 81.24 | 74.60 | 62.24 | 43.40 | 35.06 | 61.31 | ||||||||||||
2001 | 36.82 | 44.39 | 48.27 | 64.25 | 70.11 | 80.67 | 85.31 | 79.68 | 71.90 | 61.58 | 52.43 | 42.53 | 61.50 | |||||||||||||
2002 | 42.21 | 42.34 | 48.97 | 62.97 | 70.15 | 78.55 | 79.74 | 81.52 | 72.50 | 58.18 | 47.45 | 41.90 | 60.54 | |||||||||||||
2003 | 42.13 | 43.32 | 53.19 | 62.97 | 70.98 | 74.43 | 82.50 | 81.45 | 70.77 | 65.23 | 51.83 | 43.47 | 61.86 | |||||||||||||
2004 | 43.16 | 41.71 | 56.58 | 60.22 | 72.45 | 76.65 | 79.18 | 75.63 | 70.50 | 62.29 | 47.12 | 42.26 | 60.64 | |||||||||||||
2005 | 43.45 | 45.96 | 50.45 | 59.42 | 68.97 | 79.03 | 79.42 | 77.10 | 75.93 | 61.94 | 52.17 | 41.39 | 61.27 | |||||||||||||
2006 | 47.29 | 45.09 | 53.87 | 66.17 | 73.63 | 80.47 | 82.84 | 80.60 | 68.58 | 60.95 | 51.88 | 41.47 | 62.74 | |||||||||||||
2007 | 36.37 | 43.62 | 55.65 | 55.78 | 66.73 | 74.55 | 77.45 | 79.63 | 74.22 | 65.11 | 50.65 | 41.84 | 60.13 | |||||||||||||
2008 | 40.47 | 47.34 | 52.76 | 60.68 | 70.24 | 80.92 | 79.23 | 77.53 | 68.68 | 61.26 | 51.08 | 42.60 | 61.07 | |||||||||||||
2009 | 42.10 | 49.36 | 55.79 | 61.17 | 69.23 | 79.53 | 81.11 | 80.90 | 70.37 | 58.15 | 52.70 | 35.98 | 61.37 | |||||||||||||
2010 | 39.24 | 39.27 | 51.31 | 60.97 | 69.52 | 80.95 | 77.35 | 80.23 | 74.85 | 63.65 | 50.40 | a | 45.42 | 61.10 | ||||||||||||
2011 | 39.76 | 41.75 | 55.56 | 65.40 | 70.76 | 85.85 | 86.05 | 85.97 | 71.77 | 62.34 | 50.67 | 37.94 | 62.82 | |||||||||||||
2012 | 44.44 | 43.86 | 58.32 | 67.07 | 73.19 | 80.50 | 82.02 | 80.87 | 72.67 | 60.63 | 55.08 | 42.98 | 63.47 | |||||||||||||
2013 | 40.87 | 43.55 | 53.37 | 58.87 | 70.11 | 80.52 | 79.23 | 80.55 | 75.10 | 62.06 | 48.47 | 38.74 | 60.95 | |||||||||||||
2014 | 39.89 | 42.54 | 50.65 | 60.87 | 70.24 | 78.33 | 79.00 | 80.87 | 71.48 | 63.47 | 46.52 | 43.55 | 60.62 | |||||||||||||
2015 | 39.08 | 43.64 | 52.48 | 62.12 | 66.02 | 77.25 | 81.18 | 80.27 | 76.35 | 64.15 | 50.38 | 43.39 | 61.36 | |||||||||||||
2016 | 41.15 | 48.10 | 57.06 | 61.78 | 67.81 | 78.83 | 85.45 | 78.63 | 73.15 | 67.45 | 54.32 | 41.97 | 62.98 | |||||||||||||
2017 | 43.77 | 52.02 | 59.16 | 62.75 | 69.56 | 80.65 | 81.06 | 76.39 | 72.28 | 62.18 | 54.53 | 41.98 | 63.03 | |||||||||||||
2018 | 39.82 | 45.62 | 56.50 | 59.63 | 78.02 | 82.90 | 82.71 | 81.35 | 72.67 | 59.13 | 46.85 | 40.47 | 62.14 | |||||||||||||
2019 | 42.53 | 45.12 | 49.10 | 62.12 | 67.77 | 76.90 | 81.95 | 84.44 | 77.55 | 57.15 | 48.12 | 44.81 | 61.46 | |||||||||||||
2020 | 44.39 | 42.60 | 56.10 | 60.88 | 72.63 | 79.45 | 85.53 | 83.23 | 70.13 | 60.63 | 55.10 | 42.03 | 62.73 | |||||||||||||
2021 | 40.40 | 36.75 | 54.00 | 59.20 | 67.69 | 79.42 | 79.18 | 79.48 | 75.87 | 65.35 | 52.55 | 51.56 | 61.79 | |||||||||||||
2022 | 39.03 | 39.96 | 51.45 | 64.78 | 75.08 | 80.82 | 86.84 | 80.61 | 75.45 | 61.31 | 46.77 | 43.95 | 62.17 | |||||||||||||
2023 | 43.95 | 46.23 | 53.21 | 60.33 | 70.34 | 79.07 | 84.90 | 85.47 | 78.58 | 62.71 | 52.12 | 45.61 | 63.54 | |||||||||||||
2024 | 38.31 | 49.66 | 53.83 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.26 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 39.80 | 43.74 | 51.54 | 60.76 | 69.65 | 78.01 | 80.54 | 78.99 | 71.89 | 61.54 | 49.42 | 41.48 | 60.61 | |||||||||||||
S.D. | 3.55 | 3.76 | 3.70 | 2.96 | 2.74 | 2.60 | 2.60 | 2.38 | 2.64 | 2.40 | 3.45 | 3.12 | 1.29 | |||||||||||||
SKEW | -0.37 | -0.03 | -0.42 | -0.18 | 0.69 | 0.59 | 0.13 | 0.22 | 0.05 | -0.29 | -0.13 | -0.27 | 0.10 | |||||||||||||
MAX | 47.29 | 52.02 | 59.16 | 67.07 | 78.02 | 85.85 | 86.84 | 85.97 | 78.58 | 67.45 | 57.27 | 51.56 | 63.54 | |||||||||||||
MIN | 31.26 | 33.89 | 41.31 | 53.83 | 63.56 | 73.52 | 74.98 | 73.42 | 63.93 | 54.05 | 42.37 | 31.69 | 57.27 | |||||||||||||
YRS | 78 | 78 | 78 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 |