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 | 98.00 | m | 103.00 | 102.00 | s | 94.00 | a | 88.00 | 78.00 | 75.00 | ----- | z | ||||
1965 | 72.00 | 75.00 | 78.00 | 95.00 | 91.00 | 91.00 | 98.00 | 94.00 | f | 97.00 | b | 89.00 | 79.00 | 72.00 | 98.00 | h | ||||||||||
1966 | 65.00 | a | 68.00 | 85.00 | 86.00 | a | 95.00 | a | 96.00 | k | 99.00 | n | 98.00 | 92.00 | 87.00 | 81.00 | 70.00 | ----- | z | |||||||
1967 | 75.00 | 75.00 | 85.00 | 89.00 | a | 95.00 | a | 95.00 | 99.00 | 97.00 | 93.00 | 90.00 | 81.00 | 68.00 | a | 99.00 | c | |||||||||
1968 | 70.00 | 70.00 | a | 84.00 | 83.00 | 90.00 | 105.00 | a | 97.00 | 98.00 | b | 92.00 | l | 90.00 | 76.00 | 70.00 | 105.00 | p | ||||||||
1969 | 73.00 | 71.00 | 75.00 | 85.00 | 92.00 | 99.00 | a | 100.00 | a | 98.00 | 89.00 | 89.00 | 76.00 | 73.00 | 100.00 | b | ||||||||||
1970 | 78.00 | 72.00 | 80.00 | 82.00 | 93.00 | 99.00 | 98.00 | a | 98.00 | f | 95.00 | 84.00 | 75.00 | 79.00 | 99.00 | g | ||||||||||
1971 | 75.00 | 76.00 | a | 90.00 | a | 89.00 | 90.00 | 95.00 | 98.00 | 92.00 | 94.00 | 84.00 | 81.00 | 75.00 | 98.00 | b | ||||||||||
1972 | 75.00 | 82.00 | 86.00 | 90.00 | 91.00 | 95.00 | 96.00 | 92.00 | 91.00 | g | 87.00 | 70.00 | 67.00 | 96.00 | g | |||||||||||
1973 | 68.00 | 70.00 | ----- | z | 83.00 | 87.00 | 101.00 | 102.00 | ----- | z | 88.00 | u | 90.00 | 85.00 | 76.00 | ----- | z | |||||||||
1974 | 77.00 | 74.00 | 85.00 | 87.00 | 97.00 | 101.00 | 101.00 | 95.00 | n | 99.00 | 84.00 | 77.00 | 66.00 | 101.00 | n | |||||||||||
1975 | 76.00 | 71.00 | 81.00 | 84.00 | 88.00 | 97.00 | 94.00 | 98.00 | h | 93.00 | 89.00 | 82.00 | 72.00 | 98.00 | h | |||||||||||
1976 | 69.00 | 77.00 | 82.00 | 84.00 | 91.00 | 100.00 | 96.00 | i | 96.00 | 93.00 | 85.00 | a | 77.00 | 74.00 | 100.00 | j | ||||||||||
1977 | 58.00 | 75.00 | 78.00 | 84.00 | 92.00 | 102.00 | 99.00 | f | 98.00 | 92.00 | 86.00 | 81.00 | a | 74.00 | 102.00 | g | ||||||||||
1978 | 67.00 | 69.00 | b | 86.00 | 89.00 | 95.00 | 103.00 | ----- | z | 98.00 | 96.00 | c | 90.00 | 80.00 | 68.00 | ----- | z | |||||||||
1979 | 60.00 | 82.00 | 77.00 | h | 85.00 | 89.00 | b | 97.00 | 98.00 | i | 95.00 | h | 96.00 | 93.00 | 70.00 | 72.00 | ----- | z | ||||||||
1980 | 76.00 | 76.00 | 76.00 | a | 87.00 | 89.00 | 103.00 | 101.00 | d | 101.00 | 93.00 | 87.00 | f | 90.00 | 75.00 | b | 103.00 | m | ||||||||
1981 | 72.00 | g | 80.00 | 79.00 | 90.00 | 89.00 | 105.00 | 101.00 | 97.00 | g | 89.00 | e | 84.00 | 79.00 | 75.00 | 105.00 | s | |||||||||
1982 | 76.00 | a | 79.00 | 80.00 | a | 88.00 | 88.00 | 95.00 | 97.00 | g | 95.00 | g | 96.00 | 86.00 | 72.00 | 73.00 | 97.00 | p | ||||||||
1983 | 67.00 | 69.00 | 81.00 | a | 83.00 | 87.00 | a | 97.00 | b | 99.00 | h | 100.00 | i | 100.00 | 86.00 | a | 78.00 | j | 52.00 | n | ----- | z | ||||
1984 | 67.00 | a | 73.00 | 77.00 | 81.00 | 92.00 | 94.00 | 97.00 | 95.00 | 92.00 | l | 83.00 | f | 78.00 | k | 71.00 | a | ----- | z | |||||||
1985 | 59.00 | 71.00 | 79.00 | 84.00 | 92.00 | a | 98.00 | a | 99.00 | 95.00 | l | 92.00 | d | 83.00 | 77.00 | d | 72.00 | 99.00 | v | |||||||
1986 | 77.00 | 79.00 | 84.00 | a | 87.00 | 93.00 | 96.00 | 101.00 | 103.00 | 91.00 | a | 85.00 | 77.00 | 59.00 | a | 103.00 | c | |||||||||
1987 | 70.00 | 74.00 | 76.00 | 90.00 | 86.00 | 96.00 | 97.00 | 99.00 | b | 90.00 | 89.00 | 81.00 | 73.00 | a | 99.00 | c | ||||||||||
1988 | ----- | z | ----- | z | 81.00 | 85.00 | 93.00 | 97.00 | 97.00 | i | 100.00 | 93.00 | a | 88.00 | a | 83.00 | c | 66.00 | ----- | z | ||||||
1989 | 69.00 | 81.00 | 92.00 | a | 97.00 | 97.00 | 96.00 | 100.00 | 98.00 | 91.00 | a | 91.00 | 80.00 | 72.00 | 100.00 | b | ||||||||||
1990 | 75.00 | 74.00 | 79.00 | a | 86.00 | 94.00 | 109.00 | 100.00 | g | 99.00 | b | 93.00 | g | 87.00 | 81.00 | 71.00 | a | 109.00 | r | |||||||
1991 | 65.00 | 74.00 | 78.00 | 87.00 | 93.00 | 98.00 | 99.00 | 94.00 | 93.00 | 91.00 | 75.00 | 69.00 | 99.00 | |||||||||||||
1992 | 65.00 | 69.00 | a | 77.00 | 89.00 | 94.00 | 92.00 | 102.00 | 99.00 | 94.00 | e | 90.00 | 73.00 | 67.00 | 102.00 | f | ||||||||||
1993 | 67.00 | 72.00 | 81.00 | 88.00 | 91.00 | 98.00 | 102.00 | 98.00 | ----- | z | 90.00 | 74.00 | 73.00 | ----- | z | |||||||||||
1994 | 75.00 | 73.00 | 83.00 | a | 89.00 | a | 92.00 | 105.00 | 102.00 | 103.00 | 94.00 | 91.00 | 84.00 | 71.00 | 105.00 | b | ||||||||||
1995 | 72.00 | 78.00 | 86.00 | 84.00 | 90.00 | 98.00 | 103.00 | 97.00 | 101.00 | 86.00 | 82.00 | 79.00 | 103.00 | |||||||||||||
1996 | 72.00 | 79.00 | 82.00 | 92.00 | 99.00 | 101.00 | 96.00 | 94.00 | 90.00 | 89.00 | 84.00 | 74.00 | 101.00 | |||||||||||||
1997 | 74.00 | 74.00 | 84.00 | 82.00 | f | 90.00 | l | 97.00 | 100.00 | 95.00 | 97.00 | 88.00 | 83.00 | 67.00 | 100.00 | r | ||||||||||
1998 | ----- | z | 76.00 | 86.00 | 86.00 | 96.00 | 104.00 | 100.00 | 97.00 | 95.00 | 87.00 | 82.00 | 73.00 | ----- | z | |||||||||||
1999 | 75.00 | 76.00 | 79.00 | 86.00 | 86.00 | 99.00 | 99.00 | 98.00 | 96.00 | 89.00 | 80.00 | b | 75.00 | 99.00 | b | |||||||||||
2000 | 76.00 | 78.00 | 78.00 | 89.00 | 100.00 | 98.00 | 100.00 | 100.00 | 100.00 | 93.00 | 70.00 | 72.00 | 100.00 | |||||||||||||
2001 | 64.00 | 73.00 | a | 83.00 | 89.00 | 90.00 | 99.00 | 101.00 | 98.00 | 95.00 | 90.00 | 83.00 | 71.00 | 101.00 | a | |||||||||||
2002 | 72.00 | 79.00 | 85.00 | 88.00 | a | 95.00 | a | 99.00 | 101.00 | 101.00 | 94.00 | b | 85.00 | 75.00 | 70.00 | 101.00 | d | |||||||||
2003 | 74.00 | 73.00 | 79.00 | 86.00 | 98.00 | 93.00 | 104.00 | 102.00 | 92.00 | 90.00 | 80.00 | 79.00 | b | 104.00 | b | |||||||||||
2004 | 69.00 | a | 75.00 | 86.00 | a | 83.00 | 96.00 | 100.00 | 97.00 | 97.00 | 95.00 | 82.00 | 78.00 | 69.00 | 100.00 | b | ||||||||||
2005 | 72.00 | 72.00 | 84.00 | 80.00 | 97.00 | 99.00 | 99.00 | 96.00 | 93.00 | 88.00 | a | 81.00 | 75.00 | 99.00 | a | |||||||||||
2006 | 75.00 | 80.00 | 83.00 | 91.00 | 99.00 | 103.00 | m | 103.00 | a | 98.00 | a | 91.00 | 91.00 | a | 86.00 | 71.00 | f | 103.00 | v | |||||||
2007 | 68.00 | 73.00 | 86.00 | b | 83.00 | b | 88.00 | 95.00 | a | 98.00 | 106.00 | 97.00 | a | 90.00 | i | 82.00 | a | 73.00 | 106.00 | p | ||||||
2008 | 68.00 | a | 74.00 | 82.00 | 89.00 | 96.00 | 104.00 | 98.00 | 99.00 | 92.00 | 88.00 | a | 81.00 | 75.00 | 104.00 | b | ||||||||||
2009 | 73.00 | a | 77.00 | 81.00 | 91.00 | 97.00 | 96.00 | 103.00 | 98.00 | 92.00 | 93.00 | 84.00 | 66.00 | b | 103.00 | c | ||||||||||
2010 | 64.00 | 59.00 | 86.00 | 84.00 | 89.00 | f | 102.00 | 99.00 | 97.00 | 96.00 | 87.00 | 79.00 | a | 75.00 | 102.00 | g | ||||||||||
2011 | 74.00 | 77.00 | 85.00 | 89.00 | 98.00 | 105.00 | 103.00 | a | 101.00 | 100.00 | 86.00 | 78.00 | b | 67.00 | 105.00 | c | ||||||||||
2012 | 69.00 | 73.00 | a | 88.00 | a | 95.00 | 95.00 | a | 102.00 | a | 99.00 | a | 101.00 | 96.00 | 87.00 | a | 79.00 | 73.00 | b | 102.00 | h | |||||
2013 | 68.00 | 69.00 | 81.00 | 86.00 | 94.00 | b | 104.00 | c | 98.00 | 99.00 | 94.00 | 86.00 | 72.00 | 69.00 | 104.00 | e | ||||||||||
2014 | 67.00 | 74.00 | 77.00 | 85.00 | 92.00 | 100.00 | 100.00 | 97.00 | 96.00 | 86.00 | 80.00 | 68.00 | 100.00 | |||||||||||||
2015 | 68.00 | 83.00 | 83.00 | 84.00 | 83.00 | 95.00 | 98.00 | 100.00 | 94.00 | 89.00 | 79.00 | 71.00 | 100.00 | |||||||||||||
2016 | 74.00 | 82.00 | 82.00 | 84.00 | 89.00 | 101.00 | 103.00 | 95.00 | 93.00 | 92.00 | 79.00 | 71.00 | 103.00 | |||||||||||||
2017 | 71.00 | 84.00 | 87.00 | 87.00 | 90.00 | 105.00 | 98.00 | 91.00 | 92.00 | 85.00 | 80.00 | 74.00 | 105.00 | |||||||||||||
2018 | 73.00 | 73.00 | 85.00 | 89.00 | 99.00 | 99.00 | 103.00 | 93.00 | a | 92.00 | 89.00 | 69.00 | 65.00 | 103.00 | a | |||||||||||
2019 | 69.00 | 71.00 | 84.00 | 87.00 | 88.00 | 96.00 | 103.00 | 100.00 | 94.00 | 85.00 | 75.00 | 67.00 | 103.00 | |||||||||||||
2020 | 67.00 | 70.00 | 82.00 | 86.00 | 94.00 | 100.00 | 104.00 | 101.00 | c | 95.00 | b | 93.00 | 81.00 | 67.00 | 104.00 | e | ||||||||||
2021 | 65.00 | 75.00 | b | 80.00 | 88.00 | 89.00 | 103.00 | 96.00 | 99.00 | 99.00 | 89.00 | 83.00 | 73.00 | 103.00 | b | |||||||||||
2022 | 70.00 | 71.00 | 81.00 | 89.00 | 97.00 | 106.00 | 105.00 | 95.00 | 92.00 | h | 83.00 | 76.00 | 70.00 | 106.00 | h | |||||||||||
2023 | 72.00 | a | 77.00 | 78.00 | 88.00 | 90.00 | 99.00 | 102.00 | 101.00 | 100.00 | 87.00 | 83.00 | 73.00 | 102.00 | a | |||||||||||
2024 | 65.00 | 77.00 | 75.00 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 70.28 | 74.63 | 82.12 | 86.97 | 92.47 | 99.26 | 100.00 | 98.00 | 94.34 | 87.88 | 78.95 | 71.36 | 101.50 | |||||||||||||
S.D. | 4.69 | 4.44 | 3.67 | 3.37 | 3.89 | 3.86 | 2.51 | 3.01 | 2.93 | 2.75 | 4.29 | 3.77 | 2.13 | |||||||||||||
SKEW | -0.53 | -0.35 | 0.22 | 0.58 | -0.03 | 0.21 | -0.09 | -0.10 | 0.47 | -0.02 | -0.37 | -0.44 | 0.16 | |||||||||||||
MAX | 78.00 | 84.00 | 92.00 | 97.00 | 100.00 | 109.00 | 105.00 | 106.00 | 101.00 | 93.00 | 90.00 | 79.00 | 105.00 | |||||||||||||
MIN | 58.00 | 59.00 | 75.00 | 80.00 | 83.00 | 91.00 | 94.00 | 91.00 | 89.00 | 82.00 | 69.00 | 59.00 | 98.00 | |||||||||||||
YRS | 57 | 59 | 57 | 58 | 57 | 57 | 51 | 49 | 53 | 57 | 58 | 58 | 28 |