YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.71 | a | 68.87 | 68.21 | 61.33 | 51.15 | 40.17 | 32.31 | 54.82 | e | ||||||
1942 | 30.50 | 29.32 | 36.21 | 47.88 | 55.65 | 65.62 | 71.00 | 68.48 | 61.03 | 50.55 | 41.35 | 34.92 | 49.38 | |||||||||||||
1943 | 31.85 | 36.88 | 39.81 | 52.63 | 58.06 | 67.08 | f | 71.15 | 72.56 | 64.02 | 50.69 | 40.17 | 24.16 | 49.27 | a | |||||||||||
1944 | 22.42 | 34.02 | 38.44 | 45.92 | 56.66 | 66.68 | 70.85 | 70.71 | 63.27 | 53.66 | 38.73 | 31.89 | 49.44 | |||||||||||||
1945 | 30.65 | 38.83 | b | 39.57 | c | 47.50 | c | 59.42 | 64.98 | 72.16 | 72.29 | 63.78 | 53.40 | 40.13 | 28.80 | c | 50.96 | |||||||||
1946 | 29.52 | 35.65 | b | 42.30 | a | 54.72 | 56.75 | a | 70.22 | a | 73.13 | a | 70.11 | 64.62 | a | 50.61 | 37.45 | b | 35.27 | 51.70 | ||||||
1947 | 27.39 | 36.75 | 40.84 | 47.22 | a | 60.11 | 65.83 | 74.18 | 70.10 | 65.60 | 55.23 | 33.30 | 29.57 | a | 50.51 | |||||||||||
1948 | 27.58 | 31.90 | 34.37 | 52.23 | 59.61 | 67.03 | 72.82 | 70.69 | 65.05 | 51.37 | 35.28 | 33.47 | 50.12 | |||||||||||||
1949 | 23.90 | b | 31.27 | 41.34 | 49.22 | 58.26 | 66.05 | a | 71.35 | 69.45 | 65.42 | 50.61 | 45.48 | 28.68 | 50.09 | |||||||||||
1950 | 32.48 | 38.52 | 41.02 | 51.28 | 57.68 | 68.30 | 69.18 | 68.63 | 61.10 | 59.15 | 41.97 | 36.89 | 52.18 | |||||||||||||
1951 | 30.76 | 34.62 | 39.34 | 47.53 | 59.24 | 66.55 | 75.50 | 70.23 | 64.65 | 52.34 | 36.48 | 30.56 | 50.65 | |||||||||||||
1952 | 33.94 | 33.33 | 36.10 | 48.83 | 58.50 | 70.82 | 71.68 | 72.55 | 64.60 | 55.06 | 34.67 | 27.37 | 50.62 | |||||||||||||
1953 | 35.98 | 32.50 | 43.06 | 48.87 | 54.85 | 71.10 | 73.92 | 71.02 | 66.17 | 53.44 | 41.97 | 27.40 | 51.69 | |||||||||||||
1954 | 33.37 | 41.59 | 39.81 | 54.87 | 60.08 | 69.27 | 74.16 | 70.50 | 66.62 | 55.45 | 43.88 | 32.03 | 53.47 | |||||||||||||
1955 | 27.31 | 29.39 | 40.56 | 48.03 | 57.08 | 66.07 | 71.61 | 71.11 | 66.28 | 55.06 | 39.48 | a | 35.50 | 50.63 | ||||||||||||
1956 | 36.37 | 30.22 | 42.97 | 48.55 | 62.10 | a | 72.45 | 72.23 | 70.42 | 68.05 | 54.87 | 36.67 | 31.66 | 52.21 | ||||||||||||
1957 | 33.92 | 42.95 | 41.40 | 46.97 | 54.89 | 68.53 | 73.84 | 69.56 | 63.88 | 51.45 | 33.50 | 34.47 | 51.28 | |||||||||||||
1958 | 30.31 | 39.07 | 36.73 | 46.47 | 62.05 | 70.70 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.92 | g | |||||
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 | ----- | 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 | 36.77 | 26.55 | 31.66 | j | ||
1998 | 33.76 | 34.00 | 40.47 | a | 45.37 | 58.27 | 66.68 | 70.90 | b | 70.07 | a | 67.48 | 51.65 | 42.02 | 33.68 | 51.19 | ||||||||||
1999 | 35.40 | b | 38.75 | 43.66 | 47.22 | 56.31 | 65.67 | a | 71.10 | a | 68.84 | 62.55 | 52.87 | 44.85 | 30.19 | 51.45 | ||||||||||
2000 | 34.73 | a | 39.86 | 42.19 | 52.30 | 63.44 | 69.67 | 73.02 | a | 71.61 | 66.12 | 50.11 | 32.57 | 30.65 | 52.19 | |||||||||||
2001 | 26.90 | 36.48 | 42.18 | 49.33 | d | 61.36 | b | 69.45 | 73.69 | 69.23 | 64.62 | 53.58 | 41.04 | b | 30.16 | 51.50 | ||||||||||
2002 | 31.50 | 32.50 | 40.44 | 55.05 | b | 60.58 | 71.45 | a | 72.55 | 72.05 | 63.55 | 50.81 | 38.98 | 31.63 | 51.76 | |||||||||||
2003 | 38.44 | 35.38 | 41.98 | 49.68 | 60.42 | 67.53 | 77.13 | 72.63 | 64.50 | 56.76 | 39.98 | 32.50 | 53.08 | |||||||||||||
2004 | 33.05 | 31.57 | 47.40 | 48.13 | 61.03 | 68.70 | 71.33 | a | 68.97 | 62.88 | 50.89 | 38.12 | b | 31.74 | 51.15 | |||||||||||
2005 | 37.40 | 37.77 | 38.82 | 49.87 | 59.50 | 67.87 | 74.35 | 70.45 | 65.45 | 52.06 | 42.33 | 33.18 | 52.42 | |||||||||||||
2006 | 34.10 | 36.29 | 42.61 | 53.43 | 63.15 | 71.67 | 73.16 | 68.92 | 58.65 | 51.26 | 41.88 | 30.44 | 52.13 | |||||||||||||
2007 | 24.60 | 35.02 | 45.19 | 49.88 | 58.77 | 69.02 | 73.27 | 74.16 | 66.48 | 54.53 | 43.38 | 31.05 | 52.11 | |||||||||||||
2008 | 28.05 | 37.28 | 42.45 | 48.72 | 58.24 | 70.08 | 72.68 | 71.68 | 64.57 | 53.63 | 42.58 | 32.19 | 51.85 | |||||||||||||
2009 | 35.44 | 39.54 | 44.58 | 49.73 | 63.08 | 66.98 | 75.10 | 71.77 | 63.63 | 50.37 | 42.90 | 28.26 | 52.62 | |||||||||||||
2010 | 31.26 | 33.84 | 41.79 | 50.53 | 58.98 | 71.68 | 74.21 | 72.76 | 68.63 | 55.60 | 39.03 | 36.53 | 52.90 | |||||||||||||
2011 | 31.68 | 30.54 | b | 45.76 | 52.07 | 56.32 | 71.18 | 75.97 | 75.26 | 64.38 | 52.63 | 39.83 | 27.45 | 51.92 | ||||||||||||
2012 | 35.48 | 35.11 | b | 44.90 | 54.18 | 61.61 | 74.28 | 73.98 | 73.18 | 64.80 | 54.10 | 42.38 | b | 30.38 | a | 53.70 | ||||||||||
2013 | 27.18 | 33.77 | 43.95 | 50.98 | 59.53 | 72.92 | 72.77 | 71.98 | 64.45 | 49.65 | 38.75 | 30.34 | 51.36 | |||||||||||||
2014 | 33.18 | 38.84 | 43.42 | 49.10 | 57.03 | 71.00 | 72.71 | 68.00 | 66.58 | 55.84 | 39.23 | 33.63 | 52.38 | |||||||||||||
2015 | 33.27 | 37.68 | 46.52 | a | 50.03 | 55.89 | 70.85 | 71.15 | 72.39 | 67.88 | 55.40 | b | 40.35 | 32.24 | 52.80 | |||||||||||
2016 | 32.11 | 39.67 | 45.34 | 49.95 | 57.69 | 72.47 | 76.90 | 68.47 | 65.20 | 57.16 | 43.13 | 34.11 | 53.52 | |||||||||||||
2017 | 34.18 | 41.16 | 49.02 | 50.92 | 58.32 | 72.07 | 74.65 | 70.52 | 64.72 | 52.60 | 46.67 | 35.50 | 54.19 | |||||||||||||
2018 | 33.61 | 37.91 | 43.81 | 53.07 | 62.90 | 72.98 | 74.32 | 71.73 | 66.15 | 51.42 | 38.45 | 31.55 | a | 53.16 | ||||||||||||
2019 | 30.00 | 34.59 | 43.53 | 51.28 | a | 54.89 | 67.97 | 74.10 | 73.63 | 67.38 | 48.87 | 38.87 | 33.65 | 51.56 | ||||||||||||
2020 | 32.21 | 35.59 | 45.39 | 52.07 | 62.87 | 70.75 | 75.23 | 75.42 | 63.28 | 53.77 | 44.62 | 31.31 | 53.54 | |||||||||||||
2021 | 32.53 | 34.54 | 42.63 | 51.20 | 61.11 | 72.07 | 73.32 | 72.40 | 68.05 | 52.53 | 44.90 | 36.77 | 53.50 | |||||||||||||
2022 | 32.89 | 31.14 | 41.66 | 52.25 | 62.08 | 69.82 | 73.48 | 70.08 | 66.32 | 50.47 | 36.55 | 32.52 | 51.60 | |||||||||||||
2023 | 31.69 | 34.32 | 39.26 | 48.48 | 59.63 | 65.80 | 77.63 | 74.42 | 67.18 | 55.60 | 42.38 | 35.56 | 52.66 | |||||||||||||
2024 | 33.48 | 39.59 | 43.50 | 51.00 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.86 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 31.74 | 35.67 | 41.96 | 50.08 | 59.16 | 69.09 | 73.17 | 71.10 | 64.91 | 52.98 | 40.07 | 31.79 | 51.88 | |||||||||||||
S.D. | 3.53 | 3.42 | 3.04 | 2.48 | 2.45 | 2.74 | 1.94 | 1.90 | 2.08 | 2.31 | 3.37 | 2.90 | 1.17 | |||||||||||||
SKEW | -0.67 | -0.00 | -0.24 | 0.25 | 0.01 | -0.33 | 0.13 | 0.38 | -0.62 | 0.44 | -0.31 | -0.31 | -0.15 | |||||||||||||
MAX | 38.44 | 42.95 | 49.02 | 55.05 | 63.44 | 74.28 | 77.63 | 75.42 | 68.63 | 59.15 | 46.67 | 36.89 | 54.19 | |||||||||||||
MIN | 22.42 | 29.32 | 34.37 | 45.37 | 54.85 | 61.71 | 68.87 | 68.00 | 58.65 | 48.87 | 32.57 | 24.16 | 49.38 | |||||||||||||
YRS | 44 | 44 | 44 | 43 | 43 | 42 | 43 | 43 | 43 | 43 | 44 | 44 | 41 |