YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | 46.52 | 42.03 | 44.03 | 47.90 | 60.68 | 74.77 | 80.16 | 77.84 | 69.97 | 62.61 | 46.47 | 32.03 | a | 57.08 | ||||||||||||
1949 | 27.48 | 38.25 | 45.90 | 63.93 | 66.35 | 75.73 | 83.52 | 80.35 | 76.10 | 60.03 | 57.00 | 38.35 | 59.42 | |||||||||||||
1950 | 30.73 | a | 44.57 | 46.68 | 56.10 | 65.42 | 71.30 | 84.45 | 84.84 | 73.80 | 61.35 | 52.57 | 45.29 | 59.76 | ||||||||||||
1951 | 38.52 | 43.25 | 47.58 | 63.50 | 64.65 | 77.27 | 84.94 | 81.94 | 78.13 | 58.84 | 48.57 | 33.58 | 60.06 | |||||||||||||
1952 | 33.48 | 40.97 | 43.06 | 61.90 | 66.74 | 68.40 | 85.00 | 82.35 | 79.53 | 71.90 | 47.97 | 35.97 | 59.77 | |||||||||||||
1953 | 43.97 | 46.21 | 49.35 | 54.87 | 56.23 | 65.23 | 84.39 | 77.03 | 79.13 | 62.13 | 49.40 | 40.87 | 59.07 | |||||||||||||
1954 | 37.23 | 47.18 | 46.35 | 59.67 | 69.87 | 68.07 | 83.55 | 74.35 | 70.87 | 61.26 | 52.23 | 38.55 | 59.10 | |||||||||||||
1955 | 32.33 | a | 39.43 | 47.19 | 48.20 | 63.32 | 74.97 | 77.26 | 85.77 | 74.37 | 64.16 | 42.80 | 37.68 | 57.29 | ||||||||||||
1956 | 37.32 | 35.14 | 47.90 | 59.57 | 66.16 | 71.47 | 83.77 | 79.45 | 74.47 | 57.19 | 50.07 | 40.90 | 58.62 | |||||||||||||
1957 | 31.94 | 44.04 | 47.71 | 57.53 | 65.23 | 76.20 | 80.48 | 78.39 | 76.47 | 55.16 | 44.40 | 42.26 | 58.32 | |||||||||||||
1958 | 38.74 | 47.07 | 44.74 | 54.77 | 72.61 | 71.13 | 83.42 | 85.06 | 71.73 | 68.42 | 48.83 | 47.23 | 61.15 | |||||||||||||
1959 | 42.77 | 41.74 | a | 52.65 | 62.73 | 60.45 | 74.50 | 86.68 | 79.74 | 67.50 | 64.61 | 55.30 | 39.97 | 60.72 | ||||||||||||
1960 | 37.06 | 42.52 | 53.16 | 54.87 | 59.68 | 78.50 | 87.10 | 79.68 | 76.83 | 61.97 | 44.50 | 40.90 | 59.73 | |||||||||||||
1961 | 45.03 | 43.96 | 45.45 | 57.13 | 59.52 | 79.00 | 84.74 | 84.00 | 68.73 | 61.00 | 45.03 | 36.29 | 59.16 | |||||||||||||
1962 | 30.52 | 37.32 | 44.03 | 62.13 | 60.61 | 75.37 | 79.84 | 77.26 | 75.40 | 59.29 | 48.90 | 41.74 | 57.70 | |||||||||||||
1963 | 41.06 | 50.29 | 46.90 | 47.27 | 65.74 | 70.97 | 76.61 | 79.19 | 77.37 | 62.65 | 45.57 | 42.13 | 58.81 | |||||||||||||
1964 | 34.47 | a | 36.48 | 45.68 | 53.77 | 62.29 | 68.00 | 81.35 | 79.23 | 71.60 | 66.81 | 44.37 | 38.10 | 56.84 | ||||||||||||
1965 | 36.23 | 45.79 | 52.48 | 54.37 | 63.39 | 72.17 | 82.48 | 76.74 | 70.50 | 68.39 | 46.63 | 36.10 | 58.77 | |||||||||||||
1966 | 37.39 | 40.71 | 50.32 | 61.10 | 69.87 | 69.73 | 78.45 | 81.06 | 74.33 | 63.23 | 46.07 | 39.00 | 59.27 | |||||||||||||
1967 | 38.06 | 47.00 | 43.84 | 44.67 | 65.19 | 72.70 | 84.48 | 87.68 | 78.57 | 61.74 | 50.83 | 30.52 | 58.77 | |||||||||||||
1968 | 36.42 | 49.03 | 53.42 | 56.63 | 63.16 | 74.17 | 86.52 | 74.71 | 73.50 | 59.55 | 42.73 | 33.90 | 58.65 | |||||||||||||
1969 | 32.81 | 36.64 | 49.26 | 55.53 | 70.87 | 72.57 | 83.74 | 83.32 | 75.10 | 55.39 | 51.73 | 40.68 | 58.97 | |||||||||||||
1970 | 39.81 | 48.50 | 49.29 | 50.87 | 67.26 | 75.97 | 85.94 | ----- | z | ----- | z | ----- | z | 49.13 | 34.90 | 55.74 | c | |||||||||
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | 55.84 | 52.63 | 62.71 | 73.63 | 82.94 | 80.32 | 69.13 | 70.94 | 46.50 | 35.87 | 63.05 | b | ||||||||||
1979 | 36.13 | 41.46 | 52.55 | 55.20 | 67.61 | 77.00 | 83.29 | 79.68 | 79.20 | 64.58 | 45.30 | 42.00 | 60.33 | |||||||||||||
1980 | 42.13 | 46.72 | 47.68 | 59.03 | 64.26 | 68.03 | 83.77 | 81.32 | 75.20 | 65.97 | 51.30 | 43.29 | 60.73 | |||||||||||||
1981 | 42.71 | 45.71 | 51.19 | 58.40 | 64.58 | 74.80 | 83.52 | 87.35 | 76.97 | 58.58 | 50.03 | 42.42 | 61.36 | |||||||||||||
1982 | 35.61 | 42.93 | 45.97 | 52.17 | 67.16 | 73.13 | 79.81 | 82.58 | 69.57 | 59.84 | 44.57 | 38.13 | 57.62 | |||||||||||||
1983 | 41.26 | 43.68 | 46.90 | 51.13 | 65.74 | 70.60 | 75.58 | 80.52 | 73.53 | 64.58 | 44.07 | 36.52 | 57.84 | |||||||||||||
1984 | 39.29 | 43.24 | 52.03 | 52.43 | 64.84 | 70.53 | 84.81 | 83.42 | 72.20 | ----- | z | 42.57 | 32.84 | 58.02 | a | |||||||||||
1985 | 35.65 | 41.07 | 47.19 | 62.80 | 66.16 | 76.83 | 86.97 | 79.61 | 65.80 | 60.52 | 39.33 | 38.74 | 58.39 | |||||||||||||
1986 | 46.45 | 47.00 | 56.32 | 57.50 | 66.29 | 79.83 | 79.61 | 87.42 | 65.90 | 64.58 | 49.80 | 39.87 | 61.72 | |||||||||||||
1987 | 38.42 | 45.32 | 49.81 | 66.37 | 70.19 | 78.73 | 76.68 | 84.52 | 79.73 | 73.00 | 50.20 | 37.74 | 62.56 | |||||||||||||
1988 | 34.14 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.14 | k |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.55 | 52.03 | 42.00 | 52.53 | i | |||
1997 | 41.61 | 46.07 | 56.10 | 56.57 | 73.26 | 73.57 | 81.71 | 83.16 | 75.53 | 62.00 | 49.84 | e | 39.06 | 61.54 | ||||||||||||
1998 | 41.42 | 40.96 | 49.55 | 55.57 | 54.94 | 71.23 | 87.26 | 88.84 | 80.33 | 62.13 | 44.60 | 36.42 | 59.44 | |||||||||||||
1999 | 42.13 | 39.68 | 47.68 | 55.83 | 65.65 | 74.97 | 84.61 | 81.81 | 80.33 | 69.61 | 51.27 | 41.84 | 61.28 | |||||||||||||
2000 | 40.83 | a | 46.10 | 50.39 | 60.50 | 63.45 | 77.67 | 80.03 | 82.68 | 71.73 | 59.87 | 41.17 | 42.35 | 59.73 | ||||||||||||
2001 | 41.48 | 42.32 | 53.94 | 52.73 | 73.77 | 73.63 | 82.39 | 85.77 | 77.00 | 65.90 | 47.53 | 36.35 | 61.07 | |||||||||||||
2002 | 37.77 | 46.71 | 50.16 | 58.17 | 64.58 | 75.97 | 86.65 | 80.65 | 75.63 | 63.42 | 51.30 | 41.68 | 61.06 | |||||||||||||
2003 | 47.32 | 45.36 | 52.35 | 49.43 | 64.35 | 79.27 | 87.52 | 81.39 | 78.70 | 66.90 | 44.13 | 39.42 | 61.35 | |||||||||||||
2004 | 38.10 | 43.86 | 59.06 | 61.17 | 64.87 | 75.77 | 84.65 | 82.19 | 72.50 | 59.65 | 47.13 | 42.45 | 60.95 | |||||||||||||
2005 | 38.26 | 48.43 | 55.73 | a | 55.10 | 63.16 | 68.40 | 85.87 | 84.32 | 71.37 | 61.84 | 45.37 | 38.06 | 59.66 | ||||||||||||
2006 | 38.74 | 44.75 | 41.77 | 55.87 | 68.23 | 77.67 | 86.52 | 81.68 | 76.00 | 62.26 | 46.57 | 39.87 | 59.99 | |||||||||||||
2007 | 38.77 | 43.89 | 55.97 | 58.73 | 70.00 | 74.70 | 85.65 | 82.68 | 71.67 | 57.45 | 51.23 | 34.81 | 60.46 | |||||||||||||
2008 | 32.48 | 38.41 | 46.23 | 53.90 | 65.74 | 74.17 | 83.87 | 82.52 | 78.60 | 63.58 | 51.14 | a | 36.77 | 58.95 | ||||||||||||
2009 | 42.32 | 45.68 | 47.48 | 56.87 | 69.32 | 72.47 | 86.45 | 81.97 | 79.63 | 59.26 | 47.77 | 36.03 | 60.44 | |||||||||||||
2010 | 42.77 | 45.89 | 50.90 | 52.37 | 58.03 | 72.00 | 86.00 | 81.81 | 76.37 | 63.81 | 44.80 | 40.55 | 59.61 | |||||||||||||
2011 | 41.26 | 41.29 | 45.52 | 50.63 | 59.16 | 71.33 | 81.00 | 84.13 | 81.20 | 62.10 | 45.47 | 44.16 | 58.94 | |||||||||||||
2012 | 43.48 | 45.14 | a | 47.00 | 57.87 | 68.23 | 71.00 | 84.61 | 87.71 | 82.23 | 64.42 | 49.70 | 37.16 | 61.55 | ||||||||||||
2013 | 34.66 | b | 44.57 | 54.71 | 58.70 | 68.03 | 77.43 | 89.71 | 83.23 | 72.83 | 62.29 | 53.00 | a | 36.00 | 61.26 | |||||||||||
2014 | 45.42 | 47.93 | 54.61 | 61.67 | 69.52 | 77.33 | 90.61 | 84.10 | 78.40 | 65.39 | 49.70 | 45.76 | f | 65.88 | a | |||||||||||
2015 | 49.13 | 53.18 | 59.52 | 60.20 | 67.68 | 84.60 | 85.32 | 84.87 | 77.10 | 69.26 | 45.93 | 37.13 | 64.49 | |||||||||||||
2016 | 37.94 | 51.86 | 52.06 | 63.53 | 67.68 | 77.90 | 83.77 | 86.97 | 75.30 | 57.65 | 52.30 | 37.90 | 62.07 | |||||||||||||
2017 | 33.06 | 44.18 | 53.26 | 54.50 | 70.16 | 78.50 | 89.23 | 88.26 | 75.93 | 63.26 | 49.37 | 41.16 | 61.74 | |||||||||||||
2018 | 47.10 | 46.11 | 49.45 | 57.70 | 71.39 | 77.80 | 89.58 | 86.17 | a | 76.97 | 64.00 | 52.83 | 39.84 | 63.24 | ||||||||||||
2019 | 45.06 | 37.07 | 49.48 | 59.60 | 67.03 | 77.90 | 84.06 | 85.39 | 71.90 | 59.58 | 53.97 | 41.52 | 61.05 | |||||||||||||
2020 | 41.71 | 50.66 | 50.94 | 61.43 | 68.35 | 76.07 | 87.35 | 87.32 | 82.93 | 70.06 | 48.43 | 41.65 | 63.91 | |||||||||||||
2021 | 42.00 | a | 45.19 | a | 51.87 | 63.63 | 70.32 | 84.27 | 91.71 | 86.61 | 78.57 | 60.77 | 52.07 | 39.94 | 63.91 | |||||||||||
2022 | 46.90 | 51.57 | 56.71 | 53.83 | 63.03 | 76.53 | 90.29 | 89.87 | 80.77 | 71.61 | 42.53 | 34.81 | 63.21 | |||||||||||||
2023 | 40.42 | 44.68 | 41.90 | 58.07 | 69.68 | 76.73 | 89.58 | 84.55 | 73.07 | 65.03 | 51.03 | 44.87 | 61.63 | |||||||||||||
2024 | 43.61 | 45.90 | 49.94 | 58.43 | 58.10 | u | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.47 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 39.30 | 44.21 | 49.78 | 56.71 | 65.74 | 74.50 | 84.20 | 82.67 | 75.15 | 63.17 | 48.15 | 38.97 | 60.18 | |||||||||||||
S.D. | 4.75 | 3.93 | 4.19 | 4.59 | 4.03 | 3.85 | 3.57 | 3.51 | 4.01 | 4.04 | 3.69 | 3.39 | 1.76 | |||||||||||||
SKEW | -0.16 | -0.17 | 0.27 | -0.31 | -0.42 | 0.07 | -0.31 | -0.17 | -0.32 | 0.48 | -0.05 | -0.12 | 0.37 | |||||||||||||
MAX | 49.13 | 53.18 | 59.52 | 66.37 | 73.77 | 84.60 | 91.71 | 89.87 | 82.93 | 73.00 | 57.00 | 47.23 | 64.49 | |||||||||||||
MIN | 27.48 | 35.14 | 41.77 | 44.67 | 54.94 | 65.23 | 75.58 | 74.35 | 65.80 | 55.16 | 39.33 | 30.52 | 56.84 | |||||||||||||
YRS | 61 | 60 | 61 | 61 | 60 | 60 | 60 | 59 | 59 | 59 | 61 | 60 | 56 |