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 | 44.90 | 48.03 | 56.20 | a | 78.67 | 80.97 | 89.87 | 94.58 | 92.00 | 88.17 | 74.42 | 58.40 | 56.06 | 71.86 | ||||||||||||
1949 | 40.35 | 52.89 | 64.90 | 68.40 | 79.81 | 86.37 | 90.35 | 90.45 | 84.72 | a | 73.61 | 71.10 | 52.74 | 71.31 | ||||||||||||
1950 | 59.81 | 63.82 | 66.97 | 74.50 | 82.81 | 91.80 | 87.90 | 90.71 | 80.50 | 83.13 | 65.73 | 57.84 | 75.46 | |||||||||||||
1951 | 49.48 | 59.64 | 61.68 | 71.30 | 80.71 | 88.80 | 96.81 | 94.19 | 87.77 | 75.16 | 58.67 | 54.10 | 73.19 | |||||||||||||
1952 | 56.35 | 58.41 | 60.71 | 71.07 | 81.94 | 95.50 | 92.90 | 95.06 | 84.60 | 75.55 | 53.47 | 51.67 | a | 73.10 | ||||||||||||
1953 | 61.16 | 54.93 | 68.32 | 72.50 | 79.74 | 98.17 | 94.84 | 91.29 | 89.37 | 74.90 | 63.23 | 50.00 | 74.87 | |||||||||||||
1954 | 56.61 | 65.54 | 62.58 | 78.77 | 78.03 | 93.50 | 96.71 | 92.52 | 88.33 | 74.23 | ----- | z | ----- | z | 78.68 | b | ||||||||||
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 | 61.03 | 74.60 | 88.29 | 89.03 | 91.39 | 95.26 | 84.31 | a | 77.58 | 62.67 | 54.74 | 77.89 | b | |||||||||
1963 | 48.20 | a | 55.61 | 66.06 | 77.60 | 83.94 | 89.67 | 95.90 | 89.97 | 85.70 | 80.13 | 65.93 | 50.00 | 74.06 | ||||||||||||
1964 | 53.10 | 44.10 | 62.48 | 73.37 | 83.97 | 93.37 | 97.13 | 93.32 | 82.13 | 77.45 | 60.30 | 53.42 | 72.85 | |||||||||||||
1965 | 58.19 | 54.63 | a | 55.77 | 75.20 | 80.10 | 88.23 | 93.87 | 90.10 | 82.86 | a | 75.45 | 68.07 | 56.16 | 73.22 | |||||||||||
1966 | 45.23 | 51.36 | 68.03 | 72.90 | 84.10 | a | 87.87 | 97.26 | 85.97 | 84.69 | a | 73.26 | 66.70 | 51.58 | 72.41 | |||||||||||
1967 | 58.16 | 57.75 | 71.45 | 76.23 | 81.00 | 88.07 | 89.77 | 86.42 | 81.63 | 76.29 | 61.63 | 44.87 | 72.77 | |||||||||||||
1968 | 52.45 | 53.97 | 61.23 | 69.40 | 77.65 | 92.70 | 90.58 | 90.03 | 84.77 | 77.00 | 57.10 | 53.97 | 71.74 | |||||||||||||
1969 | 61.00 | a | 54.93 | 53.68 | 73.87 | 80.32 | 86.20 | 95.03 | 93.10 | 83.03 | 66.03 | 61.63 | 54.81 | 71.97 | ||||||||||||
1970 | 50.39 | 60.14 | 56.73 | a | 70.67 | 83.55 | 89.23 | 92.65 | 91.74 | 80.77 | 66.35 | 62.63 | 59.03 | 71.99 | ||||||||||||
1971 | 54.10 | 53.96 | 66.42 | 71.27 | 80.84 | 92.33 | 90.87 | a | 86.06 | 80.27 | 70.10 | 61.37 | 51.32 | 71.58 | ||||||||||||
1972 | 56.42 | 64.81 | b | 71.19 | 78.47 | 81.32 | 92.27 | 88.94 | 85.68 | 79.63 | 69.10 | a | 50.73 | 51.19 | 72.48 | |||||||||||
1973 | 46.19 | 53.04 | 58.77 | 65.43 | 77.87 | 90.40 | 90.00 | 93.39 | 81.00 | 76.42 | 67.73 | 53.48 | 71.14 | |||||||||||||
1974 | 51.94 | 59.14 | 72.37 | a | 74.17 | 88.32 | 93.50 | 92.74 | 87.48 | 75.23 | 70.90 | 58.87 | 49.39 | 72.84 | ||||||||||||
1975 | 50.26 | 49.39 | 61.03 | 69.33 | 80.19 | 90.50 | 87.26 | 91.35 | 78.67 | 76.84 | 62.17 | 57.16 | 71.18 | |||||||||||||
1976 | 54.45 | 64.45 | 63.48 | 73.20 | 77.77 | 90.60 | 89.81 | 91.13 | 82.00 | 66.93 | a | 57.27 | 54.87 | 72.16 | ||||||||||||
1977 | 46.45 | 58.75 | 62.87 | 72.20 | 82.97 | 95.27 | 95.16 | 91.87 | 89.13 | 76.13 | 64.83 | 58.35 | 74.50 | |||||||||||||
1978 | 46.07 | a | 47.57 | 64.61 | 77.83 | 80.03 | 89.63 | 96.45 | 90.87 | a | 82.77 | 75.00 | 56.43 | 45.13 | 71.03 | |||||||||||
1979 | 39.26 | 57.18 | 63.03 | 71.10 | 77.97 | 87.97 | 92.94 | 88.94 | 85.67 | 77.50 | a | 54.60 | 55.67 | a | 70.98 | |||||||||||
1980 | 52.19 | 55.38 | 62.81 | 70.00 | 77.77 | 96.83 | 99.06 | 90.84 | 82.00 | 71.74 | 58.43 | 60.32 | 73.12 | |||||||||||||
1981 | 55.10 | 61.81 | a | 61.29 | 77.97 | 79.55 | 93.20 | 93.74 | 87.03 | 81.33 | 69.71 | 65.70 | 57.61 | 73.67 | ||||||||||||
1982 | 54.55 | 53.39 | 65.39 | 71.30 | 80.03 | 87.00 | 92.35 | ----- | z | 83.57 | ----- | z | ----- | z | ----- | z | 73.45 | d | ||||||||
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 95.50 | w | 91.00 | 69.52 | 52.57 | 47.77 | 65.21 | h | ||||
2001 | 43.84 | 56.75 | 58.87 | 77.70 | 79.68 | 91.47 | 98.74 | 92.84 | 87.67 | 76.58 | 62.70 | 53.94 | 73.40 | |||||||||||||
2002 | 54.39 | 56.26 | a | 64.03 | 78.21 | a | 85.52 | d | 95.52 | c | 93.79 | l | 94.40 | a | 82.52 | c | 66.84 | 57.57 | 49.77 | 71.37 | a | |||||
2003 | 56.94 | 54.11 | 66.16 | 76.13 | 85.00 | 86.60 | 98.68 | 94.00 | 83.80 | 77.42 | 62.13 | 56.13 | 74.76 | |||||||||||||
2004 | 56.00 | f | 51.52 | 67.10 | 68.03 | 86.90 | 91.80 | 90.42 | 87.61 | 83.07 | 71.65 | 54.20 | 53.94 | 73.29 | a | |||||||||||
2005 | 55.87 | a | 55.57 | 59.39 | 70.80 | 77.35 | 93.10 | 94.90 | a | 88.03 | 85.93 | 72.48 | 66.57 | 54.29 | 72.86 | |||||||||||
2006 | 60.74 | 59.93 | 64.00 | 79.80 | 86.90 | 95.70 | 93.90 | 87.81 | 78.53 | 72.16 | 65.57 | 50.39 | 74.62 | |||||||||||||
2007 | 42.23 | 58.54 | 67.71 | 69.13 | 79.77 | 89.33 | 94.81 | 96.74 | 89.33 | 80.48 | 65.07 | 51.61 | 73.73 | |||||||||||||
2008 | 53.48 | 61.48 | 67.84 | 76.03 | a | 83.97 | 96.13 | 89.45 | 89.29 | 83.33 | 74.32 | 64.40 | 55.71 | 74.62 | ||||||||||||
2009 | 58.71 | 64.07 | 69.07 | a | 73.57 | 82.07 | c | 93.48 | c | 95.39 | 94.10 | 83.47 | 69.94 | 66.30 | 43.80 | a | 74.50 | |||||||||
2010 | 51.07 | d | 43.61 | 63.45 | 73.23 | 81.19 | 96.07 | 93.16 | 93.45 | 89.90 | 77.39 | 63.27 | 57.10 | 73.57 | ||||||||||||
2011 | 54.94 | 55.46 | b | 70.81 | 79.13 | 84.29 | 98.97 | 100.75 | c | 99.57 | a | 85.10 | 75.61 | 63.10 | 42.68 | 75.87 | ||||||||||
2012 | 58.55 | 54.25 | a | 72.57 | c | 81.43 | 86.77 | 98.73 | 98.71 | 96.97 | 88.13 | 76.26 | 70.20 | 58.13 | 78.39 | |||||||||||
2013 | 52.65 | 57.29 | 69.32 | 73.53 | 85.71 | 97.00 | 92.77 | 96.41 | d | 85.90 | 74.29 | 60.27 | 53.03 | 74.85 | ||||||||||||
2014 | 56.16 | 57.57 | 66.71 | 75.13 | 83.77 | 92.33 | 92.94 | 94.45 | 83.13 | 78.03 | a | 60.47 | 52.94 | 74.47 | ||||||||||||
2015 | 49.00 | 57.64 | 67.45 | 75.57 | 76.42 | 90.77 | 94.61 | 93.19 | 91.07 | 73.68 | 64.07 | 55.16 | 74.05 | |||||||||||||
2016 | 53.81 | 63.86 | 70.39 | 74.17 | 80.74 | 94.50 | 102.32 | 91.45 | 88.60 | 84.26 | 66.33 | 54.71 | 77.09 | |||||||||||||
2017 | 53.61 | 66.93 | 75.40 | a | 74.37 | 82.61 | 95.97 | 98.13 | 90.19 | 85.03 | 75.39 | 70.87 | 57.10 | 77.13 | ||||||||||||
2018 | 58.16 | 61.39 | 71.32 | 74.97 | 90.97 | 97.73 | 96.68 | 94.26 | 87.07 | 70.52 | 58.73 | 52.81 | 76.22 | |||||||||||||
2019 | 55.55 | 61.00 | 63.71 | 75.73 | 79.77 | 92.87 | 97.94 | 99.41 | d | 92.67 | 69.42 | 61.32 | b | 57.19 | 75.55 | |||||||||||
2020 | 55.83 | a | 55.93 | 68.42 | 76.45 | a | 89.97 | 98.40 | 98.10 | 99.05 | i | 86.00 | 75.74 | 66.43 | 55.52 | 75.16 | a | |||||||||
2021 | 52.48 | 51.71 | 65.74 | 72.80 | 81.06 | 93.27 | 92.30 | a | 93.23 | 90.17 | 78.06 | 68.97 | 63.90 | 75.31 | ||||||||||||
2022 | 55.52 | 53.00 | 65.42 | 78.90 | 89.00 | 93.53 | 99.39 | 90.26 | 89.03 | 69.87 | 55.37 | 53.42 | 74.39 | |||||||||||||
2023 | 51.87 | 57.36 | 63.93 | b | 71.36 | b | 80.43 | c | 86.80 | 95.74 | 94.90 | 87.33 | 73.45 | 62.63 | 55.13 | 73.41 | ||||||||||
2024 | 48.58 | g | 58.62 | 62.19 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.40 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 52.81 | 56.64 | 64.85 | 74.07 | 82.19 | 92.31 | 94.34 | 91.82 | 84.85 | 74.20 | 62.09 | 53.63 | 73.65 | |||||||||||||
S.D. | 5.35 | 5.15 | 4.66 | 3.49 | 3.53 | 3.57 | 3.48 | 3.32 | 3.69 | 4.03 | 4.84 | 4.14 | 1.75 | |||||||||||||
SKEW | -0.71 | -0.30 | -0.13 | -0.11 | 0.66 | 0.08 | 0.04 | 0.13 | -0.09 | -0.01 | -0.29 | -0.56 | 0.53 | |||||||||||||
MAX | 61.16 | 66.93 | 75.40 | 81.43 | 90.97 | 98.97 | 102.32 | 99.57 | 92.67 | 84.26 | 71.10 | 63.90 | 78.39 | |||||||||||||
MIN | 39.26 | 43.61 | 53.68 | 65.43 | 76.42 | 86.20 | 87.26 | 85.68 | 75.23 | 66.03 | 50.73 | 42.68 | 70.98 | |||||||||||||
YRS | 49 | 51 | 52 | 51 | 51 | 51 | 50 | 49 | 52 | 51 | 50 | 50 | 45 |