YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 92.47 | m | 95.84 | 93.58 | s | 80.31 | a | 76.71 | 60.13 | 54.90 | 73.58 | g | ||||
1965 | 57.10 | 55.61 | 56.06 | 76.50 | 78.48 | 83.60 | 90.35 | 86.76 | f | 81.75 | b | 76.16 | 67.97 | 57.06 | 70.97 | a | ||||||||||
1966 | 46.03 | a | 51.64 | 69.52 | 73.38 | a | 82.97 | a | 86.16 | k | 95.53 | n | 85.26 | 83.63 | 75.42 | 68.07 | 52.03 | 68.79 | b | |||||||
1967 | 57.81 | 58.61 | 73.13 | 77.10 | a | 80.47 | a | 85.83 | 88.45 | 86.26 | 81.53 | 78.84 | 62.03 | 48.90 | a | 73.25 | ||||||||||
1968 | 54.55 | 54.61 | a | 64.58 | 70.63 | 77.90 | 90.28 | a | 88.71 | 89.31 | b | 84.61 | l | 78.16 | 57.97 | 52.58 | 70.84 | a | ||||||||
1969 | 59.26 | 54.75 | 53.19 | 73.80 | 79.45 | 84.14 | a | 92.10 | a | 90.55 | 81.57 | 68.35 | 61.80 | 54.97 | 71.16 | |||||||||||
1970 | 49.74 | 60.25 | 58.45 | 70.07 | 82.10 | 86.67 | 89.57 | a | 91.16 | f | 83.17 | 67.68 | 63.03 | 58.58 | 69.94 | a | ||||||||||
1971 | 54.29 | 55.78 | a | 68.27 | a | 72.00 | 80.06 | 89.00 | 89.35 | 84.35 | 80.17 | 73.13 | 61.50 | 51.97 | 71.66 | |||||||||||
1972 | 57.81 | 63.38 | 73.42 | 79.40 | 79.94 | 89.13 | 88.03 | 84.74 | 79.43 | g | 71.42 | 50.77 | 52.06 | 71.83 | a | |||||||||||
1973 | 47.42 | 54.32 | ----- | z | 65.63 | 76.55 | 88.47 | 89.16 | ----- | z | 79.11 | u | 77.42 | 67.53 | 54.90 | 69.05 | c | |||||||||
1974 | 51.45 | 61.57 | 72.68 | 74.90 | 88.06 | 91.17 | 93.39 | 87.71 | n | 76.07 | 71.71 | 59.77 | 51.26 | 72.00 | a | |||||||||||
1975 | 53.55 | 51.89 | 63.71 | 70.03 | 80.16 | 87.00 | 86.77 | 92.43 | h | 81.43 | 78.58 | 62.90 | 58.23 | 70.39 | a | |||||||||||
1976 | 55.71 | 64.34 | 64.97 | 73.60 | 77.45 | 88.63 | 90.23 | i | 90.42 | 80.97 | 68.00 | a | 58.40 | 55.87 | 70.76 | a | ||||||||||
1977 | 46.19 | 60.32 | 64.90 | 71.40 | 80.65 | 93.03 | 93.64 | f | 90.55 | 85.50 | 77.32 | 66.66 | a | 58.45 | 72.27 | a | ||||||||||
1978 | 46.32 | 45.58 | b | 65.39 | 77.17 | 79.16 | 89.40 | ----- | z | 90.35 | 83.89 | c | 76.61 | 57.13 | 47.77 | 68.98 | a | |||||||||
1979 | 40.13 | 57.07 | 66.00 | h | 71.90 | 77.66 | b | 86.07 | 91.23 | i | 87.22 | h | 85.33 | 80.13 | 55.50 | 56.06 | 67.76 | c | ||||||||
1980 | 51.16 | 57.17 | 62.70 | a | 70.47 | 76.52 | 94.07 | 97.78 | d | 91.26 | 83.73 | 72.68 | f | 60.00 | 61.38 | b | 73.29 | a | ||||||||
1981 | 55.83 | g | 62.50 | 63.13 | 78.60 | 79.42 | 91.87 | 91.29 | 85.17 | g | 83.04 | e | 72.90 | 65.23 | 59.13 | 74.71 | b | |||||||||
1982 | 56.27 | a | 54.82 | 65.00 | a | 72.13 | 78.45 | 84.73 | 90.25 | g | 87.79 | g | 84.27 | 73.58 | 59.13 | 48.81 | 67.72 | b | ||||||||
1983 | 50.26 | 51.00 | 60.30 | a | 68.27 | 76.57 | a | 86.32 | b | 93.39 | h | 95.09 | i | 88.70 | 73.67 | a | 70.15 | j | 30.06 | n | 69.38 | d | ||||
1984 | 48.70 | a | 61.83 | 62.81 | 68.97 | 81.06 | 86.37 | 91.00 | 87.16 | 79.72 | l | 68.72 | f | 57.11 | k | 52.93 | a | 71.20 | c | |||||||
1985 | 48.03 | 53.43 | 64.74 | 74.43 | 81.50 | a | 88.79 | a | 92.68 | 90.32 | l | 80.46 | d | 71.61 | 60.58 | d | 50.97 | 69.75 | a | |||||||
1986 | 60.00 | 54.21 | 68.80 | a | 76.30 | 78.42 | 86.03 | 93.61 | 90.84 | 83.07 | a | 68.29 | 56.33 | 48.20 | a | 72.01 | ||||||||||
1987 | 48.77 | 52.71 | 59.26 | 71.17 | 77.26 | 85.57 | 91.90 | 88.93 | b | 82.27 | 74.39 | 60.73 | 47.87 | a | 70.07 | |||||||||||
1988 | ----- | z | ----- | z | 62.00 | 70.73 | 78.84 | 86.90 | 88.59 | i | 89.35 | 80.93 | a | 74.90 | a | 64.33 | c | 52.68 | 73.41 | c | ||||||
1989 | 55.16 | 46.46 | 72.50 | a | 76.37 | 82.13 | 81.27 | 90.16 | 87.42 | 80.66 | a | 75.71 | 65.53 | 47.00 | 71.70 | |||||||||||
1990 | 50.94 | 53.00 | 58.97 | a | 71.37 | 77.23 | 96.93 | 89.67 | g | 88.93 | b | 82.26 | g | 72.58 | 63.97 | 46.17 | a | 68.01 | b | |||||||
1991 | 45.48 | 61.79 | 63.71 | 72.27 | 82.06 | 87.43 | 87.45 | 87.06 | 78.50 | 74.87 | 52.43 | 50.32 | 70.28 | |||||||||||||
1992 | 49.29 | 58.21 | a | 68.16 | 74.37 | 77.68 | 84.00 | 90.52 | 87.13 | 85.00 | e | 76.32 | 54.40 | 49.03 | 71.18 | |||||||||||
1993 | 46.03 | 51.32 | 63.90 | 71.00 | 79.32 | 87.13 | 91.06 | 90.65 | ----- | z | 71.06 | 56.90 | 53.35 | 69.25 | a | |||||||||||
1994 | 53.58 | 55.61 | 63.77 | a | 70.97 | a | 77.39 | 93.97 | 92.81 | 91.48 | 84.90 | 71.77 | 60.40 | 56.77 | 72.78 | |||||||||||
1995 | 50.58 | 60.75 | 61.13 | 67.10 | 74.74 | 83.77 | 91.16 | 91.90 | 81.07 | 75.58 | 64.63 | 52.45 | 71.24 | |||||||||||||
1996 | 53.26 | 58.55 | 60.68 | 72.83 | 86.45 | 88.13 | 87.71 | 85.68 | 78.50 | 72.26 | 60.93 | 51.97 | 71.41 | |||||||||||||
1997 | 46.74 | 50.04 | 67.90 | 61.96 | f | 76.74 | l | 85.87 | 92.23 | 87.52 | 84.47 | 72.13 | 55.97 | 45.00 | 68.79 | b | ||||||||||
1998 | ----- | z | 53.29 | 58.19 | 67.77 | 84.61 | 90.50 | 95.55 | 88.32 | 89.27 | 72.97 | 62.20 | 52.81 | 74.13 | a | |||||||||||
1999 | 54.65 | 62.75 | 60.61 | 68.83 | 74.65 | 85.23 | 91.19 | 90.68 | 80.47 | 74.16 | 68.14 | b | 52.45 | 71.98 | ||||||||||||
2000 | 56.26 | 63.55 | 63.81 | 73.17 | 84.03 | 86.57 | 92.94 | 95.10 | 89.10 | 70.26 | 51.87 | 46.97 | 72.80 | |||||||||||||
2001 | 43.19 | 53.22 | a | 55.55 | 75.47 | 77.94 | 89.33 | 96.48 | 91.06 | 85.33 | 75.52 | 62.37 | 53.65 | 71.59 | ||||||||||||
2002 | 51.77 | 53.57 | 61.84 | 74.69 | a | 81.80 | a | 92.47 | 92.23 | 92.16 | 83.18 | b | 65.58 | 56.87 | 47.55 | 71.14 | ||||||||||
2003 | 55.19 | 51.46 | 64.29 | 73.87 | 81.58 | 82.03 | 95.74 | 93.68 | 81.67 | 75.06 | 59.67 | 56.69 | b | 72.58 | ||||||||||||
2004 | 53.30 | a | 51.93 | 66.10 | a | 67.07 | 84.26 | 88.00 | 87.03 | 85.90 | 80.93 | 71.48 | 52.67 | 53.03 | 70.14 | |||||||||||
2005 | 51.52 | 53.79 | 58.87 | 68.70 | 75.55 | 87.97 | 92.39 | 86.68 | 84.70 | 71.33 | a | 65.17 | 52.48 | 70.76 | ||||||||||||
2006 | 59.65 | 58.00 | 62.90 | 77.50 | 84.94 | 95.76 | m | 93.37 | a | 85.80 | a | 77.30 | 71.90 | a | 65.60 | 52.64 | f | 73.70 | b | |||||||
2007 | 42.19 | 51.68 | 67.21 | b | 66.86 | b | 76.48 | 84.62 | a | 91.00 | 93.39 | 85.00 | a | 79.95 | i | 62.31 | a | 50.06 | 70.07 | a | ||||||
2008 | 50.30 | a | 56.62 | 63.84 | 72.17 | 80.39 | 93.73 | 88.23 | 87.52 | 80.33 | 72.13 | a | 63.67 | 52.00 | 71.74 | |||||||||||
2009 | 54.80 | a | 62.25 | 65.77 | 70.37 | 77.29 | 88.37 | 90.74 | 90.19 | 79.20 | 67.06 | 64.60 | 44.38 | b | 71.25 | |||||||||||
2010 | 49.90 | 43.04 | 59.42 | 71.23 | 76.60 | f | 91.83 | 89.26 | 89.77 | 87.57 | 76.03 | 62.28 | a | 54.35 | 70.43 | a | ||||||||||
2011 | 51.97 | 50.36 | 67.29 | 75.73 | 79.55 | 94.93 | 97.43 | a | 94.65 | 83.10 | 73.26 | 60.25 | b | 41.26 | 72.48 | |||||||||||
2012 | 56.16 | 52.18 | a | 69.10 | a | 76.27 | 82.53 | a | 89.28 | a | 93.53 | a | 90.81 | 83.47 | 71.13 | a | 65.90 | 52.31 | b | 73.56 | ||||||
2013 | 46.87 | 51.46 | 63.26 | 66.87 | 79.52 | b | 92.59 | c | 88.55 | 89.90 | 82.97 | 69.10 | 56.47 | 48.39 | 69.66 | |||||||||||
2014 | 48.84 | 49.21 | 61.32 | 70.57 | 79.90 | 88.40 | 87.35 | 91.00 | 77.97 | 73.13 | 57.30 | 48.71 | 69.48 | |||||||||||||
2015 | 46.00 | 52.36 | 64.03 | 71.63 | 72.55 | 85.77 | 90.65 | 88.58 | 86.90 | 71.71 | 62.63 | 53.19 | 70.50 | |||||||||||||
2016 | 52.87 | 61.17 | 66.55 | 69.37 | 76.39 | 90.50 | 96.06 | 86.32 | 84.27 | 79.65 | 63.53 | 50.13 | 73.07 | |||||||||||||
2017 | 50.00 | 63.29 | 69.68 | 69.87 | 76.94 | 89.90 | 90.87 | 82.48 | 79.63 | 71.32 | 66.63 | 53.26 | 71.99 | |||||||||||||
2018 | 54.87 | 56.93 | 67.19 | 69.63 | 85.26 | 90.43 | 91.35 | 87.17 | a | 82.63 | 67.61 | 55.40 | 50.77 | 71.60 | ||||||||||||
2019 | 51.03 | 55.07 | 59.23 | 72.13 | 72.84 | 84.60 | 93.13 | 93.16 | 86.93 | 65.06 | 57.60 | 53.94 | 70.39 | |||||||||||||
2020 | 51.71 | 50.79 | 64.74 | 70.13 | 83.52 | 93.03 | 92.39 | 92.82 | c | 81.04 | b | 72.23 | 63.80 | 53.23 | 72.45 | |||||||||||
2021 | 49.84 | 43.54 | b | 60.65 | 67.10 | 75.45 | 87.30 | 88.10 | 89.32 | 87.40 | 74.68 | 64.67 | 60.74 | 70.73 | ||||||||||||
2022 | 50.71 | 49.82 | 62.06 | 75.47 | 83.65 | 88.17 | 95.74 | 87.45 | 86.86 | h | 69.68 | 54.90 | 51.94 | 69.96 | a | |||||||||||
2023 | 52.53 | a | 55.07 | 60.97 | 70.63 | 78.74 | 83.97 | 92.16 | 92.87 | 87.17 | 73.68 | 62.20 | 54.55 | 72.04 | ||||||||||||
2024 | 44.90 | 57.86 | 61.68 | 72.17 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.15 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 51.27 | 55.21 | 63.86 | 72.04 | 79.59 | 88.26 | 91.50 | 89.26 | 82.88 | 73.04 | 60.89 | 52.22 | 71.52 | |||||||||||||
S.D. | 4.45 | 5.07 | 4.32 | 3.24 | 3.30 | 3.39 | 2.81 | 2.84 | 3.04 | 3.46 | 4.39 | 4.05 | 1.05 | |||||||||||||
SKEW | -0.17 | -0.13 | 0.15 | 0.22 | 0.29 | 0.34 | 0.36 | -0.08 | 0.14 | -0.16 | -0.36 | -0.08 | -0.04 | |||||||||||||
MAX | 60.00 | 64.34 | 73.42 | 79.40 | 88.06 | 96.93 | 97.78 | 95.10 | 89.27 | 80.13 | 68.14 | 61.38 | 73.56 | |||||||||||||
MIN | 40.13 | 43.04 | 53.19 | 65.63 | 72.55 | 81.27 | 86.77 | 82.48 | 76.07 | 65.06 | 50.77 | 41.26 | 69.48 | |||||||||||||
YRS | 57 | 59 | 58 | 59 | 57 | 57 | 51 | 49 | 53 | 57 | 58 | 58 | 32 |