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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 83.00 | 80.00 | 76.00 | ----- | z | |||
1981 | 67.00 | 72.00 | 74.00 | 87.00 | 87.00 | 98.00 | 97.00 | 95.00 | 90.00 | 80.00 | 75.00 | 72.00 | 98.00 | |||||||||||||
1982 | 70.00 | b | 73.00 | b | 68.00 | 82.00 | 84.00 | 88.00 | 97.00 | 93.00 | 95.00 | 84.00 | 69.00 | 71.00 | 97.00 | d | ||||||||||
1983 | 63.00 | 60.00 | e | 70.00 | 79.00 | 86.00 | 96.00 | a | 98.00 | 96.00 | 94.00 | 82.00 | 75.00 | 56.00 | a | 98.00 | g | |||||||||
1984 | 52.00 | a | 60.00 | 71.00 | 75.00 | 93.00 | 92.00 | 97.00 | 96.00 | 94.00 | 79.00 | y | ----- | z | ----- | z | ----- | z | ||||||||
1985 | ----- | z | ----- | z | ----- | z | 83.00 | i | 84.00 | a | 99.00 | a | 99.00 | a | 99.00 | 99.00 | a | 81.00 | 74.00 | a | 58.00 | h | ----- | z | ||
1986 | 74.00 | 79.00 | 84.00 | 84.00 | d | 91.00 | 98.00 | 99.00 | 99.00 | j | 89.00 | i | 79.00 | a | 71.00 | a | 65.00 | 99.00 | y | |||||||
1987 | 66.00 | 72.00 | 73.00 | 86.00 | 88.00 | a | 93.00 | 97.00 | 99.00 | 91.00 | 87.00 | 72.00 | 73.00 | 99.00 | a | |||||||||||
1988 | 58.00 | 66.00 | 82.00 | 82.00 | 88.00 | a | 97.00 | c | 99.00 | d | 97.00 | 94.00 | 85.00 | 76.00 | 68.00 | 99.00 | h | |||||||||
1989 | 65.00 | 77.00 | 84.00 | 90.00 | 96.00 | 97.00 | 100.00 | 97.00 | 95.00 | 88.00 | 76.00 | 68.00 | 100.00 | |||||||||||||
1990 | 72.00 | 69.00 | 74.00 | 81.00 | 88.00 | a | 102.00 | 100.00 | 99.00 | 99.00 | 85.00 | a | 82.00 | 68.00 | 102.00 | b | ||||||||||
1991 | 63.00 | d | 69.00 | a | 70.00 | 82.00 | 86.00 | 100.00 | a | 97.00 | n | 95.00 | 89.00 | 90.00 | 77.00 | 66.00 | 100.00 | t | ||||||||
1992 | 60.00 | 70.00 | 72.00 | 84.00 | 90.00 | 88.00 | e | 93.00 | g | 94.00 | a | 92.00 | 87.00 | a | 66.00 | 57.00 | 94.00 | n | ||||||||
1993 | 62.00 | 66.00 | 75.00 | 78.00 | 85.00 | 99.00 | 99.00 | 99.00 | 90.00 | 87.00 | 65.00 | 68.00 | 99.00 | |||||||||||||
1994 | 71.00 | f | 66.00 | i | 81.00 | 84.00 | a | 90.00 | 99.00 | 99.00 | i | 100.00 | g | 93.00 | 86.00 | a | 76.00 | 74.00 | ----- | z | ||||||
1995 | 66.00 | 74.00 | 79.00 | 79.00 | 85.00 | 92.00 | 98.00 | c | 101.00 | a | 99.00 | 85.00 | 79.00 | 75.00 | a | 101.00 | e | |||||||||
1996 | 77.00 | 79.00 | 78.00 | 88.00 | a | 96.00 | 94.00 | b | 98.00 | a | 97.00 | a | 90.00 | 90.00 | a | 82.00 | c | 70.00 | 98.00 | i | ||||||
1997 | 77.00 | a | 71.00 | c | 77.00 | b | 79.00 | a | 88.00 | b | 90.00 | f | 98.00 | d | 95.00 | e | 90.00 | b | 87.00 | e | 72.00 | b | 53.00 | a | ----- | z |
1998 | 61.00 | 64.00 | e | 79.00 | f | 82.00 | d | 91.00 | b | 96.00 | j | 100.00 | h | 93.00 | f | 94.00 | a | 83.00 | a | 79.00 | 70.00 | a | ----- | z | ||
1999 | 71.00 | a | 72.00 | c | 76.00 | b | 78.00 | d | 87.00 | a | 89.00 | g | 99.00 | h | 92.00 | a | 93.00 | c | 88.00 | a | 82.00 | b | 69.00 | ----- | z | |
2000 | 64.00 | b | 73.00 | c | 72.00 | 84.00 | b | 98.00 | e | 95.00 | c | 100.00 | e | 97.00 | c | 97.00 | 89.00 | 65.00 | b | 68.00 | 100.00 | y | ||||
2001 | 75.00 | 67.00 | d | 72.00 | 83.00 | f | 88.00 | g | 95.00 | e | 99.00 | e | ----- | z | ----- | z | ----- | z | ----- | z | 65.00 | c | ----- | z | ||
2002 | 74.00 | 73.00 | c | 77.00 | 88.00 | a | 92.00 | 100.00 | c | 100.00 | c | 101.00 | c | 93.00 | i | 80.00 | c | 73.00 | b | 66.00 | ----- | z | ||||
2003 | 75.00 | 71.00 | 78.00 | 83.00 | 98.00 | c | 91.00 | g | 102.00 | 98.00 | h | 90.00 | b | 90.00 | b | 71.00 | e | 70.00 | h | ----- | z | |||||
2004 | 65.00 | d | 66.00 | 82.00 | b | 83.00 | d | 91.00 | b | 100.00 | 96.00 | j | 94.00 | 93.00 | a | 79.00 | 78.00 | b | 66.00 | 100.00 | y | |||||
2005 | 70.00 | c | 69.00 | 76.00 | e | 79.00 | c | 91.00 | i | 96.00 | e | 103.00 | 99.00 | b | 93.00 | 87.00 | e | 77.00 | g | 70.00 | ----- | z | ||||
2006 | 71.00 | 72.00 | 77.00 | 86.00 | f | 93.00 | a | 99.00 | 98.00 | a | 98.00 | b | 91.00 | 87.00 | 83.00 | f | 65.00 | 99.00 | p | |||||||
2007 | 61.00 | a | 64.00 | 82.00 | a | 81.00 | b | 85.00 | 94.00 | e | 98.00 | p | 98.00 | b | 93.00 | 88.00 | 80.00 | 78.00 | ----- | z | ||||||
2008 | 64.00 | 64.00 | b | 76.00 | a | 84.00 | 91.00 | b | 93.00 | 100.00 | 103.00 | c | ----- | z | 78.00 | e | 79.00 | 65.00 | ----- | z | ||||||
2009 | 73.00 | 69.00 | 76.00 | 81.00 | 91.00 | a | 93.00 | 95.00 | 97.00 | a | 90.00 | 85.00 | 80.00 | 63.00 | 97.00 | b | ||||||||||
2010 | 63.00 | 54.00 | 82.00 | b | 82.00 | a | 90.00 | c | 100.00 | 98.00 | 93.00 | 94.00 | 86.00 | 76.00 | b | 70.00 | 100.00 | h | ||||||||
2011 | 67.00 | 75.00 | c | 77.00 | a | 82.00 | 89.00 | 99.00 | 100.00 | b | 100.00 | a | 97.00 | 87.00 | 72.00 | 64.00 | 100.00 | g | ||||||||
2012 | 65.00 | 65.00 | b | 80.00 | a | 91.00 | 94.00 | a | 104.00 | i | 99.00 | 98.00 | a | 94.00 | 86.00 | 74.00 | a | 67.00 | 104.00 | o | ||||||
2013 | 70.00 | 64.00 | 69.00 | r | 84.00 | 92.00 | 102.00 | b | 97.00 | v | 99.00 | 97.00 | 83.00 | 72.00 | d | 66.00 | c | ----- | z | |||||||
2014 | ----- | z | ----- | z | ----- | z | ----- | z | 88.00 | f | 95.00 | 98.00 | b | 93.00 | 95.00 | 84.00 | 72.00 | b | 63.00 | ----- | z | |||||
2015 | 72.00 | 80.00 | a | 86.00 | 77.00 | 81.00 | a | 90.00 | 96.00 | a | 94.00 | a | 93.00 | a | 90.00 | 76.00 | b | 70.00 | 96.00 | g | ||||||
2016 | 69.00 | a | 76.00 | 75.00 | b | 78.00 | a | 87.00 | 100.00 | a | 102.00 | 97.00 | 95.00 | 87.00 | 82.00 | b | 64.00 | 102.00 | g | |||||||
2017 | 65.00 | 79.00 | 82.00 | 83.00 | 84.00 | 97.00 | 97.00 | b | 90.00 | 92.00 | 82.00 | a | 78.00 | 72.00 | c | 97.00 | f | |||||||||
2018 | 74.00 | 67.00 | 76.00 | 84.00 | 93.00 | a | 101.00 | b | 96.00 | a | 95.00 | d | 95.00 | 92.00 | 65.00 | e | 64.00 | a | 101.00 | n | ||||||
2019 | 70.00 | 66.00 | a | 76.00 | 86.00 | 85.00 | 96.00 | 100.00 | 99.00 | 99.00 | 93.00 | 74.00 | 64.00 | 100.00 | a | |||||||||||
2020 | 59.00 | 74.00 | 76.00 | 80.00 | 91.00 | 98.00 | 99.00 | 99.00 | 100.00 | 88.00 | 82.00 | 66.00 | a | 100.00 | a | |||||||||||
2021 | 65.00 | a | 69.00 | a | 79.00 | 85.00 | 89.00 | 100.00 | 102.00 | 100.00 | d | 98.00 | a | 84.00 | 81.00 | b | 73.00 | b | 102.00 | k | ||||||
2022 | 66.00 | 63.00 | a | 80.00 | 89.00 | 94.00 | 97.00 | 102.00 | 98.00 | b | 97.00 | 87.00 | 76.00 | 61.00 | 102.00 | c | ||||||||||
2023 | 66.00 | 64.00 | 76.00 | 88.00 | 84.00 | a | 93.00 | a | 99.00 | 101.00 | 97.00 | 90.00 | 80.00 | 70.00 | 101.00 | b | ||||||||||
2024 | 64.00 | 72.00 | 72.00 | 83.00 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 67.10 | 69.49 | 76.83 | 82.87 | 89.38 | 96.45 | 98.89 | 97.03 | 94.13 | 85.69 | 75.35 | 67.29 | 99.55 | |||||||||||||
S.D. | 5.58 | 5.75 | 4.27 | 3.75 | 4.11 | 3.64 | 1.88 | 2.87 | 3.05 | 3.59 | 4.94 | 5.13 | 1.75 | |||||||||||||
SKEW | -0.21 | -0.24 | 0.09 | 0.19 | 0.22 | -0.60 | 0.25 | -0.31 | 0.19 | -0.29 | -0.54 | -0.50 | -0.08 | |||||||||||||
MAX | 77.00 | 80.00 | 86.00 | 91.00 | 98.00 | 102.00 | 103.00 | 103.00 | 100.00 | 93.00 | 82.00 | 78.00 | 102.00 | |||||||||||||
MIN | 52.00 | 54.00 | 68.00 | 75.00 | 81.00 | 88.00 | 95.00 | 90.00 | 89.00 | 78.00 | 65.00 | 53.00 | 97.00 | |||||||||||||
YRS | 41 | 41 | 40 | 39 | 40 | 38 | 35 | 38 | 39 | 42 | 40 | 41 | 11 |