YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 76.24 | a | 83.13 | 82.10 | 75.10 | 63.13 | 54.50 | 43.77 | 68.28 | e | ||||||
1942 | 44.32 | 42.57 | 50.45 | 61.10 | 72.48 | 83.27 | 86.74 | 82.42 | 75.60 | 64.52 | 56.77 | 46.65 | 63.91 | |||||||||||||
1943 | 44.23 | 50.93 | 54.65 | 69.20 | 73.74 | 81.65 | d | 86.68 | 87.23 | 78.67 | 65.55 | 55.43 | 35.58 | 65.29 | ||||||||||||
1944 | 35.94 | 44.41 | 51.13 | 58.47 | 70.39 | 81.77 | 84.65 | 84.10 | 76.97 | 66.68 | 49.73 | 43.16 | 62.28 | |||||||||||||
1945 | 41.94 | 50.85 | b | 53.17 | b | 62.37 | c | 74.29 | 81.07 | 85.74 | 85.29 | 77.43 | 66.58 | 54.77 | 40.90 | a | 64.53 | |||||||||
1946 | 41.45 | 49.65 | b | 55.90 | 70.30 | 72.17 | a | 87.27 | 87.43 | a | 82.87 | 79.17 | a | 64.03 | 48.93 | a | 49.03 | 65.68 | ||||||||
1947 | 41.10 | 51.36 | 55.42 | 62.86 | a | 75.35 | 82.13 | 89.84 | 82.97 | 81.37 | 69.13 | 45.97 | 41.84 | 64.94 | ||||||||||||
1948 | 38.90 | 42.76 | 46.16 | 67.17 | 73.23 | 81.00 | 87.71 | 84.94 | 79.83 | 65.19 | 48.73 | 45.19 | 63.40 | |||||||||||||
1949 | 33.17 | a | 42.43 | 55.45 | 63.43 | 72.42 | 80.80 | 84.65 | 84.39 | 80.23 | 65.13 | 62.00 | 42.58 | 63.89 | ||||||||||||
1950 | 45.19 | 52.07 | 56.39 | 67.60 | 74.42 | 83.80 | 82.26 | 84.13 | 75.03 | 75.68 | 57.70 | 51.71 | 67.16 | |||||||||||||
1951 | 44.26 | 48.54 | 54.00 | 63.03 | 74.45 | 82.73 | 90.55 | 83.48 | 80.40 | 66.84 | 50.30 | 42.35 | 65.08 | |||||||||||||
1952 | 45.42 | 45.83 | 48.97 | 63.20 | 73.10 | 86.07 | 86.42 | 87.45 | 79.73 | 72.68 | 47.20 | 39.19 | 64.60 | |||||||||||||
1953 | 49.13 | 46.21 | 56.81 | 64.27 | 69.97 | 87.50 | 88.55 | 86.13 | 83.73 | 69.03 | 55.63 | 39.94 | 66.41 | |||||||||||||
1954 | 46.16 | 58.21 | 53.68 | 72.47 | 75.52 | 86.17 | 88.39 | 85.32 | 81.63 | 70.23 | 59.77 | 45.87 | 68.62 | |||||||||||||
1955 | 40.23 | 42.64 | 56.03 | 63.67 | 71.23 | 82.57 | 85.29 | 84.19 | 81.37 | 70.84 | 54.07 | a | 48.03 | 65.01 | ||||||||||||
1956 | 48.61 | 42.93 | 59.26 | 64.67 | 78.58 | 88.30 | 86.97 | 85.42 | 85.03 | 69.84 | 52.00 | 46.55 | 67.35 | |||||||||||||
1957 | 43.74 | 55.29 | 53.94 | 61.57 | 67.71 | 85.00 | 88.10 | 82.00 | 80.07 | 62.48 | 44.00 | 46.16 | 64.17 | |||||||||||||
1958 | 42.87 | 51.82 | 47.13 | 59.33 | 77.65 | 86.48 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.76 | 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 | 48.93 | 36.87 | 42.90 | j | ||
1998 | 45.35 | 45.75 | 54.90 | a | 60.80 | 77.06 | 85.23 | 84.55 | b | 84.03 | a | 83.13 | 64.84 | 55.33 | 47.52 | 65.71 | ||||||||||
1999 | 50.00 | b | 55.39 | 58.16 | 62.30 | 71.81 | 82.34 | a | 84.70 | a | 82.13 | 78.47 | 70.16 | 61.77 | 44.81 | 66.84 | ||||||||||
2000 | 48.87 | a | 54.62 | 57.81 | 68.73 | 82.19 | 85.67 | 89.20 | a | 86.29 | 82.43 | 61.68 | 43.07 | 41.90 | 66.87 | |||||||||||
2001 | 37.65 | 48.54 | 56.29 | 65.85 | d | 77.69 | b | 87.27 | 89.10 | 83.13 | 81.40 | 70.10 | 54.07 | b | 43.48 | 66.21 | ||||||||||
2002 | 44.42 | 47.89 | 58.39 | 71.86 | b | 77.94 | 89.72 | a | 87.32 | 88.32 | 77.60 | 64.42 | 51.13 | 41.90 | 66.74 | |||||||||||
2003 | 53.10 | 47.07 | 56.45 | 66.23 | 77.84 | 84.73 | 93.84 | 87.10 | 79.97 | 71.39 | 52.87 | 44.81 | 67.95 | |||||||||||||
2004 | 45.00 | 43.14 | 62.55 | 61.67 | 78.35 | 85.77 | 87.33 | a | 83.65 | 77.67 | 63.35 | 48.64 | b | 43.32 | 65.04 | |||||||||||
2005 | 47.48 | 46.93 | 51.29 | 64.87 | 75.29 | 85.37 | 91.48 | 85.13 | 81.13 | 64.55 | 57.57 | 47.26 | 66.53 | |||||||||||||
2006 | 49.26 | 53.25 | 56.39 | 70.70 | 80.68 | 89.00 | 86.71 | 80.23 | 72.43 | 65.32 | 57.03 | 42.19 | 66.93 | |||||||||||||
2007 | 34.68 | 47.11 | 61.26 | 65.20 | 73.48 | 86.17 | 89.00 | 89.97 | 81.07 | 71.29 | 58.53 | 41.71 | 66.62 | |||||||||||||
2008 | 39.68 | 49.55 | 59.10 | 66.90 | 74.52 | 88.97 | 88.23 | 86.77 | 80.70 | 68.90 | 57.37 | 43.55 | 67.02 | |||||||||||||
2009 | 48.19 | 55.50 | 59.61 | 65.93 | 78.94 | 82.70 | 91.16 | 88.55 | 78.77 | 64.32 | 58.07 | 39.52 | 67.60 | |||||||||||||
2010 | 43.52 | 44.11 | 55.74 | 67.47 | 76.23 | 90.43 | 88.71 | 88.71 | 85.77 | 70.77 | 54.23 | 49.45 | 67.93 | |||||||||||||
2011 | 45.29 | 46.35 | b | 63.13 | 68.00 | 73.77 | 90.13 | 91.16 | 90.45 | 78.90 | 66.94 | 53.27 | 38.26 | 67.14 | ||||||||||||
2012 | 47.06 | 48.56 | b | 62.32 | 70.37 | 78.81 | 92.07 | 89.10 | 87.97 | 79.80 | 71.26 | 58.07 | b | 43.03 | a | 69.03 | ||||||||||
2013 | 40.48 | 47.25 | 60.87 | 67.90 | 76.32 | 90.67 | 86.71 | 86.06 | 77.30 | 64.06 | 50.07 | 41.19 | 65.74 | |||||||||||||
2014 | 47.29 | 53.21 | 58.81 | 65.83 | 74.03 | 88.73 | 86.71 | 81.97 | 80.57 | 70.45 | 53.87 | 44.58 | 67.17 | |||||||||||||
2015 | 44.71 | 51.82 | 62.90 | a | 66.10 | 69.84 | 87.03 | 84.87 | 88.00 | 84.00 | 68.17 | b | 53.37 | 42.71 | 66.96 | |||||||||||
2016 | 43.87 | 55.28 | 62.65 | 65.20 | 73.48 | 90.33 | 93.81 | 82.13 | 80.77 | 74.06 | 56.50 | 46.74 | 68.73 | |||||||||||||
2017 | 44.77 | 55.11 | 66.55 | 66.43 | 74.61 | 90.03 | 89.84 | 84.65 | 79.60 | 67.16 | 61.60 | 50.74 | 69.26 | |||||||||||||
2018 | 49.10 | 52.46 | 59.81 | 70.43 | 80.77 | 90.70 | 89.26 | 86.90 | 82.23 | 63.65 | 51.70 | 43.90 | a | 68.41 | ||||||||||||
2019 | 40.19 | 47.07 | 57.13 | 67.86 | a | 70.52 | 84.83 | 90.32 | 90.10 | 83.33 | 65.06 | 53.00 | 44.42 | 66.15 | ||||||||||||
2020 | 43.77 | 48.62 | 59.23 | 68.80 | 80.55 | 89.03 | 91.13 | 93.32 | 80.67 | 71.65 | 58.80 | 44.87 | 69.20 | |||||||||||||
2021 | 45.77 | 49.71 | 58.55 | 68.30 | 77.71 | 88.40 | 87.61 | 88.00 | 84.10 | 68.00 | 60.57 | 49.10 | 68.82 | |||||||||||||
2022 | 45.94 | 45.11 | 56.90 | 69.00 | 79.61 | 84.13 | 87.74 | 83.29 | 82.33 | 63.45 | 50.43 | 45.45 | 66.12 | |||||||||||||
2023 | 42.61 | 47.18 | 52.00 | 65.67 | 75.35 | 82.93 | 94.42 | 89.35 | 82.53 | 71.68 | 55.90 | 46.32 | 67.16 | |||||||||||||
2024 | 45.00 | 52.41 | 57.42 | 68.00 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.61 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 44.08 | 49.03 | 56.70 | 65.89 | 75.21 | 85.81 | 88.07 | 85.60 | 80.19 | 67.54 | 53.94 | 44.05 | 66.43 | |||||||||||||
S.D. | 4.13 | 4.23 | 4.32 | 3.37 | 3.37 | 3.51 | 2.74 | 2.84 | 2.79 | 3.46 | 4.64 | 3.51 | 1.67 | |||||||||||||
SKEW | -0.55 | 0.18 | -0.29 | -0.15 | 0.02 | -0.30 | 0.28 | 0.45 | -0.44 | 0.30 | -0.32 | -0.10 | -0.29 | |||||||||||||
MAX | 53.10 | 58.21 | 66.55 | 72.47 | 82.19 | 92.07 | 94.42 | 93.32 | 85.77 | 75.68 | 62.00 | 51.71 | 69.26 | |||||||||||||
MIN | 33.17 | 42.43 | 46.16 | 58.47 | 67.71 | 76.24 | 82.26 | 80.23 | 72.43 | 61.68 | 43.07 | 35.58 | 62.28 | |||||||||||||
YRS | 44 | 44 | 44 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 44 | 44 | 42 |