YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | 41.00 | 38.00 | 40.00 | 42.00 | 45.00 | 47.00 | 51.00 | 51.00 | 48.00 | 46.00 | d | 45.00 | 37.00 | 37.00 | d | |||||||||||
1949 | 29.00 | 32.00 | 40.00 | 43.00 | a | 45.00 | b | 49.00 | 50.00 | 51.00 | 52.00 | 41.00 | 49.00 | 39.00 | 29.00 | c | ||||||||||
1950 | 37.00 | 39.00 | 41.00 | 44.00 | 43.00 | 46.00 | a | 54.00 | b | 51.00 | 51.00 | 49.00 | 46.00 | 45.00 | 37.00 | c | ||||||||||
1951 | 40.00 | 37.00 | 36.00 | 43.00 | 43.00 | a | 49.00 | 49.00 | 53.00 | 52.00 | 48.00 | 45.00 | 40.00 | 36.00 | a | |||||||||||
1952 | 38.00 | 40.00 | 38.00 | 44.00 | 47.00 | 47.00 | 49.00 | 53.00 | 51.00 | 47.00 | 41.00 | 43.00 | 38.00 | |||||||||||||
1953 | 44.00 | 38.00 | 37.00 | 40.00 | 44.00 | 45.00 | p | ----- | 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 | 36.00 | 48.00 | 42.00 | 41.00 | 49.00 | 51.00 | 54.00 | 55.00 | 53.00 | 51.00 | 48.00 | 45.00 | 36.00 | |||||||||||||
1964 | 43.00 | 44.00 | 41.00 | 43.00 | a | 43.00 | 49.00 | 51.00 | 58.00 | 55.00 | 51.00 | 39.00 | 41.00 | 39.00 | a | |||||||||||
1965 | 39.00 | 42.00 | 43.00 | 41.00 | 48.00 | 49.00 | 54.00 | 55.00 | 53.00 | 54.00 | 47.00 | 42.00 | 39.00 | |||||||||||||
1966 | 43.00 | 41.00 | 40.00 | a | 47.00 | a | 48.00 | 49.00 | 55.00 | 56.00 | 55.00 | 53.00 | 47.00 | 44.00 | 40.00 | b | ||||||||||
1967 | 46.00 | 44.00 | 41.00 | 39.00 | 44.00 | b | 45.00 | 54.00 | 55.00 | 56.00 | 54.00 | 48.00 | 34.00 | 34.00 | b | |||||||||||
1968 | 38.00 | 46.00 | 44.00 | i | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 51.00 | f | 52.00 | 55.00 | 52.00 | 49.00 | 37.00 | b | 46.00 | ----- | z | |||||
2001 | 41.00 | 38.00 | 43.00 | 42.00 | 48.00 | a | 52.00 | a | 53.00 | a | 53.00 | 53.00 | 51.00 | 46.00 | 39.00 | 38.00 | c | |||||||||
2002 | 39.00 | 42.00 | 41.00 | 45.00 | a | 45.00 | 50.00 | 53.00 | 53.00 | 53.00 | 49.00 | 49.00 | a | 45.00 | a | 39.00 | c | |||||||||
2003 | 47.00 | a | 45.00 | a | 44.00 | a | 43.00 | 45.00 | a | 51.00 | 55.00 | a | 57.00 | 53.00 | 49.00 | 45.00 | 41.00 | 41.00 | e | |||||||
2004 | 43.00 | a | 44.00 | 44.00 | 45.00 | b | 50.00 | a | 51.00 | 52.00 | 53.00 | 53.00 | 49.00 | 40.00 | 44.00 | 40.00 | d | |||||||||
2005 | 41.00 | 46.00 | 45.00 | 45.00 | 48.00 | 50.00 | 50.00 | 54.00 | 51.00 | 49.00 | 48.00 | 45.00 | 41.00 | |||||||||||||
2006 | 44.00 | 40.00 | 37.00 | 43.00 | 49.00 | 52.00 | a | 57.00 | 55.00 | e | 54.00 | 51.00 | 45.00 | 42.00 | 37.00 | f | ||||||||||
2007 | 39.00 | 41.00 | 43.00 | 45.00 | 47.00 | f | 49.00 | 55.00 | 56.00 | 52.00 | 50.00 | 47.00 | 40.00 | 39.00 | f | |||||||||||
2008 | 41.00 | 42.00 | 41.00 | 43.00 | b | 45.00 | b | 49.00 | d | 53.00 | 54.00 | 55.00 | 51.00 | 49.00 | 40.00 | 40.00 | h | |||||||||
2009 | 42.00 | 42.00 | 43.00 | 42.00 | a | 49.00 | 51.00 | 53.00 | 54.00 | 54.00 | 49.00 | 48.00 | 40.00 | c | 40.00 | d | ||||||||||
2010 | 42.00 | 42.00 | 42.00 | 39.00 | 45.00 | 49.00 | 51.00 | 50.00 | a | 51.00 | 51.00 | d | 41.00 | 39.00 | a | 39.00 | f | |||||||||
2011 | 41.00 | 37.00 | 41.00 | a | 40.00 | 46.00 | 47.00 | a | 53.00 | 53.00 | 54.00 | 52.00 | 46.00 | c | 43.00 | 37.00 | e | |||||||||
2012 | 42.00 | 42.00 | a | 41.00 | a | 45.00 | 48.00 | b | 50.00 | 52.00 | 55.00 | 55.00 | 51.00 | 45.00 | 42.00 | 41.00 | d | |||||||||
2013 | 38.00 | 40.00 | 43.00 | 43.00 | d | 50.00 | a | 51.00 | 54.00 | 53.00 | 55.00 | 49.00 | 50.00 | 42.00 | 38.00 | e | ||||||||||
2014 | 47.00 | 44.00 | 47.00 | 46.00 | 48.00 | c | 50.00 | 56.00 | 54.00 | 56.00 | 54.00 | 52.00 | d | 39.00 | 39.00 | g | ||||||||||
2015 | 43.00 | 47.00 | 44.00 | 48.00 | 46.00 | 50.00 | 55.00 | 57.00 | 57.00 | 55.00 | 43.00 | 42.00 | 42.00 | |||||||||||||
2016 | 44.00 | 43.00 | 42.00 | 47.00 | a | 48.00 | 50.00 | b | 54.00 | 56.00 | 54.00 | 54.00 | 48.00 | c | 44.00 | 42.00 | f | |||||||||
2017 | 43.00 | 43.00 | 43.00 | 49.00 | k | 44.00 | a | 51.00 | a | 54.00 | 56.00 | 54.00 | 53.00 | 50.00 | 46.00 | 43.00 | m | |||||||||
2018 | 44.00 | 40.00 | 43.00 | 45.00 | a | 47.00 | 51.00 | 54.00 | 58.00 | a | 54.00 | 54.00 | 50.00 | 45.00 | 40.00 | b | ||||||||||
2019 | 43.00 | 40.00 | 38.00 | a | 39.00 | 47.00 | 51.00 | a | 54.00 | b | 56.00 | a | 54.00 | a | 53.00 | 42.00 | c | 44.00 | a | 38.00 | j | |||||
2020 | 46.00 | 43.00 | 44.00 | 45.00 | a | 51.00 | 54.00 | a | 54.00 | 53.00 | 57.00 | 55.00 | 46.00 | 44.00 | c | 43.00 | e | |||||||||
2021 | 39.00 | 42.00 | 40.00 | 45.00 | 47.00 | c | 51.00 | 54.00 | k | 57.00 | b | 54.00 | 49.00 | i | 48.00 | 43.00 | 39.00 | y | ||||||||
2022 | 44.00 | 38.00 | 44.00 | 46.00 | e | 47.00 | 52.00 | m | 54.00 | 58.00 | 58.00 | 53.00 | 47.00 | 42.00 | 38.00 | r | ||||||||||
2023 | 44.00 | 38.00 | 42.00 | 43.00 | 47.00 | 51.00 | 51.00 | 57.00 | 54.00 | 53.00 | 52.00 | a | 50.00 | 38.00 | a | |||||||||||
2024 | 44.00 | 45.00 | 46.00 | 43.00 | 49.00 | 50.00 | 54.00 | a | 55.00 | 49.00 | 50.00 | 45.00 | 43.00 | 43.00 | a | |||||||||||
2025 | 41.00 | 42.00 | 40.00 | 44.00 | 47.00 | 52.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 41.51 | 41.49 | 41.67 | 43.37 | 46.71 | 49.82 | 53.06 | 54.57 | 53.49 | 50.82 | 46.11 | 42.29 | 38.35 | |||||||||||||
S.D. | 3.46 | 3.25 | 2.50 | 2.31 | 2.14 | 1.85 | 1.92 | 2.10 | 2.15 | 2.92 | 3.52 | 3.00 | 3.10 | |||||||||||||
SKEW | -1.21 | -0.40 | -0.30 | -0.23 | -0.10 | -0.58 | -0.45 | -0.23 | -0.31 | -1.03 | -0.70 | -0.25 | -1.32 | |||||||||||||
MAX | 47.00 | 48.00 | 47.00 | 48.00 | 51.00 | 54.00 | 57.00 | 58.00 | 58.00 | 55.00 | 52.00 | 50.00 | 43.00 | |||||||||||||
MIN | 29.00 | 32.00 | 36.00 | 39.00 | 43.00 | 45.00 | 49.00 | 50.00 | 48.00 | 41.00 | 37.00 | 34.00 | 29.00 | |||||||||||||
YRS | 37 | 37 | 36 | 35 | 35 | 34 | 34 | 35 | 35 | 34 | 35 | 35 | 20 |