YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1945 | ----- | z | ----- | z | ----- | z | 47.55 | 61.74 | 67.00 | 77.06 | 76.32 | 64.90 | 56.71 | 45.05 | 29.29 | 58.40 | c | |||||||||
1946 | 33.08 | 39.82 | 47.56 | 59.65 | 58.50 | 75.03 | 80.08 | 76.47 | 69.18 | 54.44 | 31.58 | 38.97 | 55.36 | |||||||||||||
1947 | 31.85 | 32.18 | 39.74 | 51.18 | 60.90 | 68.92 | 78.11 | 78.85 | 71.05 | a | 61.10 | a | 35.63 | 33.24 | 53.56 | |||||||||||
1948 | 27.89 | 27.88 | 33.19 | 57.73 | 62.94 | 72.18 | 77.71 | 76.68 | 71.98 | 55.15 | 38.13 | 34.15 | 52.97 | |||||||||||||
1949 | 20.79 | 33.93 | 43.58 | 53.05 | 64.35 | 71.30 | 78.10 | 75.47 | 68.87 | 54.32 | 50.03 | 35.15 | 54.08 | |||||||||||||
1950 | 32.16 | 41.02 | 42.63 | 52.85 | 60.97 | 74.00 | 74.79 | 73.42 | 65.93 | 62.66 | 40.08 | 36.02 | 54.71 | |||||||||||||
1951 | 28.55 | 37.86 | 39.84 | 48.92 | 63.66 | b | 68.02 | a | 78.94 | 77.27 | 66.93 | a | 53.95 | 39.00 | 31.29 | 52.85 | ||||||||||
1952 | 36.23 | 37.43 | 38.85 | 53.32 | 63.03 | 79.92 | 79.53 | 78.92 | 69.85 | 56.02 | 35.27 | 31.58 | 55.00 | |||||||||||||
1953 | 40.37 | 36.16 | 46.37 | 49.03 | 59.66 | 77.40 | 79.73 | 76.45 | 70.83 | 58.44 | 43.78 | 31.85 | 55.84 | |||||||||||||
1954 | 32.95 | 45.27 | 39.98 | 58.02 | 61.19 | 77.18 | 81.87 | 76.97 | 72.63 | 55.27 | 45.60 | 35.71 | 56.89 | |||||||||||||
1955 | 31.27 | 29.26 | a | 41.68 | 54.78 | 63.37 | 70.10 | 80.65 | 78.42 | 69.37 | 57.97 | 39.08 | 35.89 | 54.32 | ||||||||||||
1956 | 33.29 | 29.19 | 43.50 | 50.17 | 65.95 | 79.05 | 77.94 | 75.32 | 71.32 | 60.48 | 39.53 | 36.42 | 55.18 | |||||||||||||
1957 | 27.81 | 41.62 | 41.45 | 47.72 | 59.06 | 70.87 | 79.68 | 77.84 | 65.65 | 56.73 | 39.02 | 40.11 | 53.96 | |||||||||||||
1958 | 32.44 | 35.88 | 34.19 | 48.85 | 66.35 | 73.88 | 75.23 | 78.18 | 70.55 | a | 56.60 | 41.33 | 35.13 | 54.05 | ||||||||||||
1959 | 26.94 | 33.89 | 41.18 | 50.87 | 63.71 | 75.58 | 77.44 | 78.34 | 65.48 | 51.26 | 39.37 | 36.50 | 53.38 | |||||||||||||
1960 | 25.31 | 22.24 | 37.10 | 55.35 | 62.47 | 72.58 | 76.52 | 77.87 | 68.58 | 55.69 | 43.37 | 26.76 | 51.99 | |||||||||||||
1961 | 29.34 | 35.56 | a | 42.66 | 50.78 | 62.52 | 72.82 | 76.21 | 75.58 | 62.12 | b | 55.48 | 38.78 | 27.98 | 52.49 | |||||||||||
1962 | 23.73 | 38.52 | 39.89 | 55.42 | 66.85 | 71.15 | 76.52 | 77.74 | 67.63 | 59.06 | 44.25 | 37.05 | 54.82 | |||||||||||||
1963 | 21.73 | 40.56 | a | 44.74 | 57.92 | 67.97 | a | 76.42 | 82.56 | 76.97 | 72.55 | 64.24 | 45.77 | 28.18 | 56.63 | |||||||||||
1964 | 33.74 | 29.74 | 38.31 | 51.95 | 65.32 | 74.35 | 85.03 | 76.55 | 67.28 | 58.48 | 42.37 | 33.98 | 54.76 | |||||||||||||
1965 | 36.37 | 29.87 | a | 31.19 | 55.42 | 64.39 | 69.45 | 76.11 | 70.52 | 59.84 | a | 55.60 | 46.15 | 32.73 | 52.30 | |||||||||||
1966 | 20.10 | 26.98 | 44.92 | 50.40 | 63.55 | 73.35 | 81.47 | 72.89 | 67.16 | a | 51.56 | 42.57 | 28.50 | 51.95 | ||||||||||||
1967 | 34.65 | 37.04 | 47.23 | 55.95 | 58.73 | a | 68.58 | 74.82 | 71.42 | 64.35 | 53.95 | 39.78 | 25.58 | 52.67 | ||||||||||||
1968 | 30.76 | 35.57 | 44.37 | 51.27 | 60.18 | 75.75 | 76.74 | 73.39 | 66.83 | 57.44 | 39.07 | 28.13 | 53.29 | |||||||||||||
1969 | 34.97 | 37.04 | 31.92 | 56.15 | 63.47 | 68.38 | 79.42 | 77.95 | 69.05 | 46.97 | 42.08 | 33.68 | 53.42 | |||||||||||||
1970 | 29.97 | 39.27 | 35.60 | 49.38 | 64.26 | 72.78 | a | 77.95 | 79.15 | 65.12 | 49.15 | 40.70 | 34.68 | 53.17 | ||||||||||||
1971 | 31.05 | 33.41 | 41.42 | a | 51.43 | 59.35 | 76.40 | 77.19 | 75.74 | 64.62 | 55.40 | 41.10 | 33.18 | 53.36 | ||||||||||||
1972 | 30.10 | 38.98 | 48.11 | 55.40 | 63.34 | 75.90 | 77.52 | 77.00 | 69.15 | 54.85 | 29.80 | 19.66 | 53.32 | |||||||||||||
1973 | 26.92 | 37.75 | 43.03 | 47.65 | 60.08 | 72.88 | 77.77 | 79.53 | 64.68 | 58.06 | 41.60 | 32.08 | 53.50 | |||||||||||||
1974 | 24.35 | 36.95 | 48.32 | 54.95 | 67.24 | 74.83 | 82.26 | 74.53 | 65.18 | 58.08 | 42.48 | 30.03 | 54.93 | |||||||||||||
1975 | 29.74 | 33.27 | 41.19 | 52.33 | a | 64.05 | 74.57 | 81.61 | 79.32 | 65.90 | 57.73 | 37.78 | 37.03 | 54.54 | ||||||||||||
1976 | 33.42 | 44.64 | 44.07 | a | 57.07 | 62.48 | 74.40 | 80.69 | 76.39 | 67.83 | 50.87 | 38.78 | 34.89 | 55.46 | ||||||||||||
1977 | 27.58 | 38.95 | 44.19 | 57.20 | 68.92 | 77.97 | 78.89 | 74.35 | 69.83 | 54.44 | 40.12 | 33.29 | 55.48 | |||||||||||||
1978 | 21.31 | 26.91 | 45.55 | 56.40 | 60.61 | 74.42 | 82.23 | 75.74 | 69.20 | 56.31 | 40.68 | 24.94 | 52.86 | |||||||||||||
1979 | 16.10 | 34.91 | 45.03 | a | 52.97 | 59.37 | 71.72 | 78.29 | 75.03 | 70.38 | 56.63 | a | 34.73 | 33.07 | a | 52.35 | ||||||||||
1980 | 24.69 | 36.60 | 39.79 | 48.62 | 60.45 | a | 75.78 | 82.50 | 79.73 | 70.58 | 54.37 | 41.65 | 40.74 | 54.63 | ||||||||||||
1981 | 36.50 | 37.05 | 45.44 | 60.70 | 63.94 | 79.22 | a | 81.60 | 75.56 | 70.37 | 57.06 | 46.88 | 33.13 | 57.29 | ||||||||||||
1982 | 30.44 | 31.44 | b | 45.69 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.50 | 41.33 | 33.50 | 39.65 | f | ||||
1983 | 32.52 | 38.86 | 43.19 | 48.75 | 59.12 | b | 70.18 | 81.74 | 82.57 | a | 72.38 | 56.82 | 41.93 | 18.72 | b | 53.90 | ||||||||||
1984 | 26.03 | 36.72 | 40.71 | 49.32 | 65.15 | 73.87 | 79.97 | 79.53 | 66.80 | 52.97 | 43.73 | 35.50 | 54.19 | |||||||||||||
1985 | 23.83 | b | 30.09 | 46.98 | 57.15 | 66.29 | b | 74.40 | 79.84 | 79.15 | a | 67.83 | a | 53.76 | 34.90 | 28.32 | 53.55 | |||||||||
1986 | 40.84 | 38.50 | 49.56 | 55.98 | 62.65 | 73.55 | 78.87 | 74.85 | 66.48 | 53.55 | 40.83 | 31.69 | 55.61 | |||||||||||||
1987 | 31.94 | 38.43 | 41.06 | 54.50 | 62.94 | 72.62 | 79.73 | 74.03 | 66.08 | 53.77 | 41.00 | 28.82 | 53.74 | |||||||||||||
1988 | 21.13 | 33.86 | 41.65 | 51.58 | 61.92 | 75.73 | 78.10 | 77.92 | 66.10 | 55.73 | 43.50 | 32.82 | 53.34 | |||||||||||||
1989 | 34.13 | 24.88 | 48.00 | 54.87 | 64.95 | 69.43 | 78.68 | 75.40 | 65.95 | 54.55 | 43.02 | 26.53 | 53.37 | |||||||||||||
1990 | 32.58 | 33.50 | 43.40 | 53.58 | 59.11 | 77.10 | 75.02 | 74.73 | 71.18 | 54.84 | 44.88 | 25.50 | 53.79 | |||||||||||||
1991 | 28.69 | 40.91 | a | 44.90 | 52.28 | 65.92 | 75.57 | 76.89 | 76.24 | 67.00 | 54.58 | 35.20 | 33.40 | 54.30 | ||||||||||||
1992 | 33.68 | 41.05 | 47.32 | 56.95 | 63.68 | 69.25 | 74.81 | 72.37 | 69.17 | 55.73 | 33.73 | 25.74 | 53.62 | |||||||||||||
1993 | 27.37 | 31.25 | 44.05 | 52.75 | 62.27 | 72.70 | 78.16 | 74.48 | 64.12 | 52.81 | 32.90 | 35.63 | 52.37 | |||||||||||||
1994 | 33.39 | 33.29 | 46.44 | 51.08 | 64.76 | 77.57 | 77.47 | 78.21 | 68.83 | 55.03 | 41.67 | 37.03 | 55.40 | |||||||||||||
1995 | 35.29 | 40.27 | 44.76 | 48.43 | 57.26 | 69.18 | 76.60 | 81.06 | 66.45 | 53.47 | 45.32 | 34.85 | 54.41 | |||||||||||||
1996 | 30.58 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.02 | 75.10 | 65.50 | 54.98 | 39.91 | a | 33.61 | 53.81 | e | ||||||
1997 | 29.68 | 35.32 | 47.37 | 46.80 | 62.48 | 72.60 | 78.61 | 74.45 | 68.65 | 51.02 | 36.60 | 25.65 | 52.44 | |||||||||||||
1998 | 32.19 | 38.04 | a | 39.74 | 50.17 | 65.37 | 70.19 | a | 77.32 | 73.81 | 70.29 | a | 54.86 | c | 44.55 | 30.45 | 53.92 | |||||||||
1999 | 35.94 | 42.43 | 45.39 | 49.17 | 60.02 | 70.33 | 78.21 | 75.94 | 63.78 | 53.66 | 46.77 | 34.03 | 54.64 | |||||||||||||
2000 | 34.35 | 41.16 | 45.13 | 54.67 | 65.47 | 73.27 | 80.08 | 79.65 | 68.98 | 55.08 | 34.70 | 29.06 | 55.13 | |||||||||||||
2001 | 28.35 | 32.05 | 42.61 | 56.63 | 61.44 | 73.67 | 80.92 | 76.77 | 68.55 | 54.84 | 43.90 | 32.39 | 54.34 | |||||||||||||
2002 | 32.05 | 34.86 | 39.05 | 56.10 | 63.60 | 78.23 | 80.48 | 77.40 | 68.72 | 49.26 | 41.67 | 33.29 | 54.56 | |||||||||||||
2003 | 36.48 | 30.43 | 46.02 | 56.42 | 63.85 | 69.42 | 82.90 | 78.82 | 64.78 | 58.56 | 39.63 | 34.76 | 55.17 | |||||||||||||
2004 | 31.92 | 34.59 | 50.39 | 52.03 | 66.15 | 70.27 | 74.90 | 71.48 | 68.13 | 55.58 | 38.97 | 35.60 | 54.17 | |||||||||||||
2005 | 32.82 | 37.89 | 43.18 | 52.42 | 63.19 | 73.72 | 81.05 | 75.71 | 71.43 | 55.97 | 45.42 | 32.58 | 55.45 | |||||||||||||
2006 | 38.05 | 35.16 | 44.42 | 57.50 | 65.39 | 77.00 | 79.19 | 75.40 | 61.55 | 52.13 | 43.13 | 31.48 | 55.03 | |||||||||||||
2007 | 16.26 | 24.98 | 48.32 | 50.13 | 62.40 | 70.58 | 77.60 | 79.73 | 69.87 | 57.02 | 43.05 | 28.40 | 52.36 | |||||||||||||
2008 | 29.87 | 34.69 | 43.81 | 51.28 | 62.08 | 72.70 | 79.89 | 75.24 | 66.62 | 55.00 | 43.87 | 32.42 | 53.96 | |||||||||||||
2009 | 35.40 | 39.62 | 44.98 | 52.10 | 63.98 | 71.67 | 77.06 | 75.05 | 65.47 | 47.50 | 44.25 | 26.77 | 53.66 | |||||||||||||
2010 | 31.44 | 31.70 | 43.68 | 53.85 | 61.55 | 75.85 | 79.06 | 77.95 | 71.53 | 57.53 | 41.50 | 35.19 | 55.07 | |||||||||||||
2011 | 28.61 | 32.34 | 46.13 | 54.30 | 61.48 | 76.20 | 82.79 | 81.34 | 67.95 | 55.94 | 42.73 | 23.73 | 54.46 | |||||||||||||
2012 | 33.74 | 36.33 | 51.79 | 58.03 | 65.55 | 80.62 | 83.16 | 78.23 | 68.38 | 53.03 | 46.00 | 33.06 | 57.33 | |||||||||||||
2013 | 32.35 | 35.04 | 43.06 | 48.77 | 64.45 | 77.37 | 78.97 | 78.77 | 72.75 | 53.45 | 42.47 | 31.26 | 54.89 | |||||||||||||
2014 | 31.18 | 30.64 | 43.82 | 53.82 | 64.18 | 75.28 | 77.56 | 75.81 | 68.97 | 57.84 | 38.17 | 32.10 | 54.11 | |||||||||||||
2015 | 34.77 | c | 37.20 | 47.81 | 55.90 | 59.61 | 74.65 | 78.19 | 78.00 | 73.83 | 59.92 | 42.93 | 35.79 | 56.55 | ||||||||||||
2016 | 33.95 | 41.50 | 47.15 | 53.35 | 61.23 | 77.22 | 81.03 | 75.68 | 71.28 | 61.58 | 47.83 | 29.23 | 56.75 | |||||||||||||
2017 | 31.35 | 44.18 | 51.31 | 54.67 | 60.52 | 74.10 | 79.03 | 73.92 | 68.60 | 55.71 | 47.57 | 34.13 | 56.26 | |||||||||||||
2018 | 35.37 | a | 35.45 | 47.92 | 52.90 | a | 69.24 | 79.30 | 79.61 | i | 75.48 | 70.28 | 53.05 | 39.88 | 33.92 | 53.89 | a | |||||||||
2019 | 34.16 | 32.48 | d | 41.55 | 55.05 | 58.55 | 72.37 | 80.45 | a | 79.89 | 75.73 | 47.35 | 40.02 | 36.15 | 54.48 | |||||||||||
2020 | 36.06 | 33.14 | 49.18 | 52.75 | 66.79 | 78.10 | 79.82 | 79.34 | 67.75 | 53.16 | 47.82 | 32.76 | 56.39 | |||||||||||||
2021 | 33.89 | 27.50 | 45.34 | 53.48 | 62.60 | 74.87 | 80.84 | 79.42 | 72.88 | 58.21 | 47.58 | 41.98 | 56.55 | |||||||||||||
2022 | 33.37 | 32.66 | 43.40 | 55.93 | 62.47 | a | 73.37 | 79.73 | 76.29 | 69.85 | 55.42 | 37.72 | 27.16 | 53.95 | ||||||||||||
2023 | 29.74 | 33.48 | 40.63 | a | 51.71 | a | 63.42 | 68.75 | 77.08 | 77.27 | 69.58 | 54.79 | 44.13 | 36.68 | 53.94 | |||||||||||
2024 | 29.05 | 40.40 | 44.20 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.88 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 30.67 | 35.28 | 43.50 | 53.19 | 62.96 | 73.73 | 78.96 | 76.67 | 68.24 | 55.29 | 41.26 | 32.18 | 54.33 | |||||||||||||
S.D. | 4.95 | 4.76 | 4.13 | 3.20 | 2.59 | 3.18 | 2.25 | 2.36 | 2.92 | 3.14 | 4.01 | 4.37 | 1.29 | |||||||||||||
SKEW | -0.84 | -0.33 | -0.74 | 0.00 | 0.10 | -0.01 | 0.20 | -0.15 | -0.20 | -0.12 | -0.45 | -0.63 | 0.35 | |||||||||||||
MAX | 40.84 | 45.27 | 51.79 | 60.70 | 69.24 | 80.62 | 85.03 | 82.57 | 75.73 | 64.24 | 50.03 | 41.98 | 57.33 | |||||||||||||
MIN | 16.10 | 22.24 | 31.19 | 46.80 | 57.26 | 67.00 | 74.79 | 70.52 | 59.84 | 46.97 | 29.80 | 18.72 | 51.95 | |||||||||||||
YRS | 79 | 78 | 78 | 77 | 77 | 77 | 77 | 78 | 78 | 79 | 79 | 79 | 75 |