YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 79.90 | 76.93 | a | 58.31 | a | 44.29 | 64.86 | h | ||
1968 | 49.87 | 52.38 | 63.39 | 69.37 | 73.97 | a | 91.73 | 90.39 | 88.03 | 84.63 | 75.87 | 54.43 | 44.23 | 69.86 | ||||||||||||
1969 | 53.00 | 52.14 | 44.52 | 70.67 | 76.68 | 83.13 | 92.77 | 90.59 | b | 80.80 | 60.58 | 58.20 | 48.68 | 67.65 | ||||||||||||
1970 | 46.84 | 57.43 | 52.00 | 66.17 | 83.48 | 87.83 | 92.90 | 92.13 | 82.59 | a | 63.94 | 57.86 | a | 53.45 | 69.72 | |||||||||||
1971 | 48.87 | 48.29 | 61.61 | 66.90 | 76.68 | 91.37 | 90.84 | 86.26 | 80.10 | 69.45 | 54.93 | 47.29 | 68.55 | |||||||||||||
1972 | 50.33 | a | 57.83 | 69.23 | 73.63 | 75.90 | 87.34 | a | 88.35 | 86.29 | 80.90 | 68.81 | 45.27 | 39.10 | a | 68.58 | ||||||||||
1973 | 41.13 | 50.43 | 53.68 | 60.45 | a | 74.48 | 88.70 | 87.87 | 90.20 | a | 72.90 | ----- | z | 58.17 | ----- | z | 67.80 | b | ||||||||
1974 | ----- | z | 55.89 | 65.61 | 72.43 | 86.73 | a | 88.60 | 95.80 | a | 85.50 | a | 75.86 | b | 73.13 | 55.23 | 46.70 | a | 72.86 | a | ||||||
1975 | 46.37 | a | 47.41 | a | 56.42 | 65.80 | 74.70 | a | 81.73 | 85.96 | c | 89.20 | a | 79.18 | b | 77.29 | 55.87 | 51.97 | 67.66 | |||||||
1976 | 49.29 | 60.07 | ----- | z | ----- | z | ----- | z | 86.50 | 90.55 | 88.74 | 80.00 | 61.06 | 52.63 | 51.74 | 68.95 | c | |||||||||
1977 | 43.00 | 52.19 | a | 59.97 | 67.67 | 76.81 | 89.73 | 93.55 | 88.45 | 84.00 | 71.30 | a | 56.83 | 49.06 | 69.38 | |||||||||||
1978 | 33.13 | a | 31.52 | a | 57.43 | a | ----- | z | 72.84 | 86.87 | 94.55 | 87.65 | 82.43 | 72.32 | 53.27 | 41.71 | 64.88 | a | ||||||||
1979 | 32.30 | a | 49.75 | 56.84 | 66.79 | a | ----- | z | ----- | z | ----- | z | 88.23 | 84.50 | 72.80 | a | 50.03 | a | 52.06 | 61.48 | c | |||||
1980 | 38.55 | 49.96 | a | 54.81 | 63.45 | a | 70.74 | 93.27 | 96.35 | 90.71 | 83.97 | 70.77 | 59.48 | a | 56.53 | a | 69.05 | |||||||||
1981 | 52.33 | a | 56.36 | 56.73 | a | 77.86 | a | 77.11 | c | 92.43 | 90.84 | 87.00 | 83.23 | 68.73 | a | 61.17 | a | 51.10 | a | 71.24 | ||||||
1982 | 50.14 | c | 44.11 | 58.61 | 67.80 | 74.94 | 80.07 | 91.13 | 90.45 | 83.50 | 68.87 | 56.93 | a | 47.52 | 67.84 | |||||||||||
1983 | 44.90 | a | 46.37 | a | 52.32 | 59.70 | 72.10 | 83.67 | 96.29 | 97.00 | 86.27 | 70.48 | 58.48 | a | 30.71 | 66.52 | ||||||||||
1984 | 40.19 | 49.86 | 52.45 | 58.50 | 74.26 | 88.33 | 92.90 | 92.00 | 81.63 | 63.03 | 59.00 | 49.17 | a | 66.78 | ||||||||||||
1985 | 40.27 | a | 45.14 | 62.10 | 71.50 | 78.68 | 88.23 | 92.58 | 89.00 | 79.90 | 67.45 | 51.03 | a | 43.48 | 67.45 | |||||||||||
1986 | 58.45 | 52.11 | a | 64.03 | 71.47 | 76.10 | 83.83 | 90.97 | 85.42 | 80.59 | a | 65.35 | 53.97 | 45.03 | 68.94 | |||||||||||
1987 | 44.00 | 51.25 | 54.23 | 68.37 | 76.13 | 86.83 | 92.10 | 89.70 | a | 80.83 | 70.94 | 57.13 | 44.10 | 67.97 | ||||||||||||
1988 | 38.94 | 48.32 | a | 57.97 | 65.17 | 75.81 | 87.97 | 92.23 | 92.00 | 79.63 | 69.84 | 58.90 | 50.87 | 68.14 | ||||||||||||
1989 | 51.35 | 38.68 | 65.20 | a | 72.10 | 77.39 | 79.20 | 89.94 | 86.71 | 77.53 | 72.58 | 61.10 | 41.61 | 67.78 | ||||||||||||
1990 | 46.13 | 44.18 | 54.90 | 68.13 | 73.84 | 92.80 | 89.97 | 89.23 | 84.83 | 70.29 | 61.57 | 41.10 | 68.08 | |||||||||||||
1991 | 38.03 | 58.79 | 59.94 | 67.40 | 79.90 | 87.73 | 90.84 | 88.03 | 79.20 | 72.35 | 47.33 | 45.84 | 67.95 | |||||||||||||
1992 | 48.81 | 55.24 | 62.03 | 71.73 | 75.58 | 80.17 | 88.42 | 84.29 | 82.53 | 72.23 | 46.07 | 43.90 | 67.58 | |||||||||||||
1993 | 37.61 | 44.39 | 57.35 | 65.24 | a | 74.77 | 85.43 | 92.52 | 86.77 | 77.27 | 66.61 | 52.07 | 49.68 | 65.81 | ||||||||||||
1994 | 47.16 | 48.71 | 61.74 | 67.59 | a | 77.42 | 93.13 | 92.13 | 89.97 | 81.93 | 70.03 | 54.67 | 52.39 | 69.74 | ||||||||||||
1995 | 47.42 | 56.86 | 56.13 | 62.90 | a | 68.90 | 82.33 | 90.42 | 93.77 | 81.63 | 73.00 | 61.50 | 48.81 | 68.64 | ||||||||||||
1996 | 47.45 | 53.66 | 55.55 | 70.43 | 82.90 | a | 88.27 | 87.97 | 86.32 | 76.67 | 70.39 | 54.86 | a | 50.55 | 68.75 | |||||||||||
1997 | 45.71 | 47.46 | 64.68 | 58.87 | 76.35 | 85.63 | 94.61 | 87.13 | 82.50 | 67.35 | 51.10 | 37.70 | a | 66.59 | ||||||||||||
1998 | 47.45 | 50.68 | 51.81 | 64.40 | 81.61 | 88.70 | 92.29 | 87.19 | 87.83 | 71.74 | 58.90 | 46.77 | 69.12 | |||||||||||||
1999 | 49.00 | 59.04 | 54.90 | 65.30 | 73.97 | 85.53 | 92.81 | 89.71 | 77.97 | 70.87 | 65.40 | 50.81 | 69.61 | |||||||||||||
2000 | 50.48 | 60.41 | 55.26 | 70.00 | 81.29 | 86.23 | 93.77 | 96.29 | c | 88.07 | 69.65 | 48.60 | 43.61 | 70.31 | ||||||||||||
2001 | 41.00 | 41.64 | 52.42 | 72.77 | 75.45 | 87.40 | 96.13 | 91.52 | 85.20 | 72.00 | 59.57 | 51.29 | 68.87 | |||||||||||||
2002 | 47.35 | 50.18 | 57.61 | 73.20 | 80.06 | 94.33 | 95.32 | 91.52 | 80.20 | 62.00 | 54.30 | 45.23 | 69.28 | |||||||||||||
2003 | 49.45 | 46.11 | 58.68 | 69.53 | 78.35 | 80.70 | 97.45 | 92.42 | 80.17 | 75.74 | 54.13 | 50.26 | 69.42 | |||||||||||||
2004 | 47.71 | 48.45 | 64.61 | 66.73 | 83.29 | 85.50 | 85.65 | 84.10 | 83.07 | 69.68 | 49.87 | 50.45 | 68.26 | |||||||||||||
2005 | 45.29 | 49.43 | 57.16 | 66.40 | 75.71 | 88.07 | 94.90 | 88.55 | 86.27 | 71.03 | 60.93 | 47.03 | 69.23 | |||||||||||||
2006 | 55.10 | 51.43 | 58.06 | 74.67 | 80.55 | 92.47 | 92.74 | 87.32 | 76.60 | 68.39 | 59.87 | 42.45 | 69.97 | |||||||||||||
2007 | 29.10 | 35.50 | 61.48 | 61.23 | 76.77 | 84.60 | 92.71 | 94.61 | 86.13 | 74.39 | 60.13 | 41.55 | 66.52 | |||||||||||||
2008 | 43.58 | 49.83 | 57.90 | 66.77 | 79.71 | 91.17 | 94.19 | 86.16 | 77.93 | 69.06 | 59.70 | 46.55 | 68.55 | |||||||||||||
2009 | 50.52 | 56.64 | 61.97 | 64.60 | 74.90 | 86.53 | 92.00 | 87.74 | 77.77 | 58.90 | 59.30 | 40.32 | 67.60 | |||||||||||||
2010 | 46.65 | 41.07 | 56.23 | 68.97 | 75.35 | 90.20 | 91.77 | 90.55 | 87.80 | 73.19 | 59.07 | a | 50.29 | 69.26 | ||||||||||||
2011 | 45.32 | 47.04 | 59.94 | 71.10 | 77.77 | 92.33 | 100.23 | 97.13 | 82.67 | 70.87 | 54.70 | 36.58 | 69.64 | |||||||||||||
2012 | 46.00 | 48.31 | 67.55 | 71.00 | 80.94 | 92.03 | 96.06 | 92.29 | 82.63 | 66.87 | 64.10 | 47.77 | 71.30 | |||||||||||||
2013 | 44.65 | 48.68 | 58.26 | 61.80 | 79.94 | 92.93 | 90.84 | 90.90 | 84.43 | 68.65 | 54.50 | 44.74 | 68.36 | |||||||||||||
2014 | 47.87 | 46.21 | 58.94 | 67.63 | 78.58 | 87.70 | 92.58 | 92.06 | 82.07 | 72.81 | 54.70 | 45.97 | 68.93 | |||||||||||||
2015 | 46.13 | 48.79 | 61.39 | 70.57 | 71.52 | 89.30 | 91.29 | 90.10 | 88.33 | 71.90 | 54.30 | 43.52 | 68.93 | |||||||||||||
2016 | 48.23 | 56.31 | 64.97 | 67.67 | 73.65 | 91.30 | 94.52 | 87.06 | 85.03 | 79.10 | 63.93 | 45.03 | 71.40 | |||||||||||||
2017 | 44.87 | 60.04 | 66.52 | 66.33 | 73.23 | 89.30 | 92.65 | 83.45 | 80.93 | 71.10 | 61.33 | 50.26 | 70.00 | |||||||||||||
2018 | 51.35 | 50.21 | 64.87 | 65.90 | 85.03 | 94.03 | 94.06 | 87.87 | 83.37 | 64.26 | 52.73 | 47.68 | 70.11 | |||||||||||||
2019 | 45.77 | 46.32 | 53.48 | 70.00 | 71.71 | 85.33 | 94.94 | 94.74 | 91.60 | 64.77 | 56.37 | 51.61 | 68.89 | |||||||||||||
2020 | 51.42 | 47.38 | 64.39 | 69.50 | 81.52 | 96.30 | 93.35 | 93.90 | 82.28 | a | 69.77 | 63.20 | 46.39 | 71.62 | ||||||||||||
2021 | 47.80 | a | 39.00 | 59.29 | 68.03 | 74.81 | 89.17 | 91.94 | 92.90 | 89.67 | 74.65 | 63.13 | 58.65 | 70.75 | ||||||||||||
2022 | 46.90 | 46.79 | 60.53 | a | 72.63 | 81.55 | 88.90 | 97.68 | 91.81 | 86.43 | 72.74 | 53.53 | 48.84 | 70.69 | ||||||||||||
2023 | 45.55 | 50.96 | 56.68 | 69.47 | 77.77 | 82.37 | 90.81 | 91.90 | 87.03 | 71.87 | 60.57 | 51.42 | 69.70 | |||||||||||||
2024 | 37.87 | 56.45 | 61.61 | 72.47 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.98 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.79 | 49.82 | 58.89 | 67.86 | 77.04 | 87.91 | 92.52 | 89.65 | 82.33 | 70.00 | 56.57 | 46.88 | 68.87 | |||||||||||||
S.D. | 5.49 | 6.10 | 4.75 | 4.07 | 3.73 | 3.98 | 2.83 | 3.19 | 3.72 | 4.17 | 4.58 | 4.97 | 1.33 | |||||||||||||
SKEW | -0.80 | -0.48 | -0.19 | -0.28 | 0.40 | -0.23 | 0.01 | 0.36 | 0.08 | -0.57 | -0.40 | -0.55 | -0.03 | |||||||||||||
MAX | 58.45 | 60.41 | 69.23 | 77.86 | 86.73 | 96.30 | 100.23 | 97.13 | 91.60 | 79.10 | 65.40 | 58.65 | 71.62 | |||||||||||||
MIN | 29.10 | 31.52 | 44.52 | 58.50 | 68.90 | 79.20 | 85.65 | 83.45 | 72.90 | 58.90 | 45.27 | 30.71 | 65.81 | |||||||||||||
YRS | 56 | 57 | 56 | 54 | 54 | 55 | 55 | 56 | 57 | 56 | 57 | 56 | 51 |