YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 20.48 | 32.00 | 39.10 | 45.03 | 57.32 | 65.20 | 69.58 | 65.81 | 60.73 | 45.61 | 38.00 | 27.23 | 47.17 | |||||||||||||
1950 | 31.97 | 35.39 | 37.39 | 46.80 | 54.35 | 65.60 | 66.65 | 64.39 | 58.77 | 50.23 | 32.83 | 28.06 | 47.70 | |||||||||||||
1951 | 23.68 | 28.32 | 35.80 | a | 44.27 | 54.84 | 63.40 | 70.52 | 68.81 | 59.40 | 50.52 | 32.07 | 29.53 | a | 46.76 | |||||||||||
1952 | 32.81 | 31.41 | 35.29 | 46.67 | 54.52 | 67.57 | 66.71 | 69.52 | 58.97 | 43.35 | 33.57 | 26.68 | 47.25 | |||||||||||||
1953 | 32.58 | 28.14 | 42.10 | 45.53 | 53.10 | 68.20 | 70.23 | 66.65 | 57.77 | 46.77 | 35.20 | 23.16 | 47.45 | |||||||||||||
1954 | 29.00 | 34.93 | 38.71 | 50.43 | 55.42 | 65.33 | 70.26 | 68.58 | 63.57 | 50.71 | 37.23 | 28.65 | 49.40 | |||||||||||||
1955 | 28.45 | 26.29 | 37.29 | 47.17 | 55.61 | 62.73 | 67.06 | 67.84 | 61.17 | 48.00 | 35.63 | 30.19 | 47.29 | |||||||||||||
1956 | 30.39 | 26.31 | 37.68 | 44.47 | 57.13 | 67.93 | 69.23 | 66.23 | 59.83 | 50.26 | 30.60 | 28.74 | 47.40 | |||||||||||||
1957 | 30.45 | 40.70 | a | 39.16 | 44.57 | 54.42 | 65.00 | 69.87 | 68.68 | 58.03 | 49.87 | 35.53 | 31.10 | 48.95 | ||||||||||||
1958 | 28.84 | 33.48 | a | 36.19 | 45.97 | 57.58 | 68.23 | 70.16 | 68.81 | 61.48 | a | 49.81 | 36.37 | 26.77 | 48.64 | |||||||||||
1959 | 25.35 | 31.50 | 35.48 | 46.67 | 57.32 | 65.27 | 66.32 | 68.74 | 60.10 | 46.65 | 31.53 | 31.97 | 47.24 | |||||||||||||
1960 | 26.39 | 27.66 | 36.84 | 46.93 | 54.29 | 66.10 | 66.84 | 66.55 | 60.00 | 48.16 | 37.80 | 24.16 | 46.81 | |||||||||||||
1961 | 23.90 | 29.93 | 38.29 | 44.53 | 55.39 | 63.50 | 66.52 | 66.87 | 58.17 | 46.35 | 32.50 | 28.65 | 46.22 | |||||||||||||
1962 | 21.71 | 34.86 | 34.45 | 46.00 | 56.39 | 63.37 | 67.77 | 67.45 | 62.33 | 50.48 | 37.30 | 30.10 | 47.68 | |||||||||||||
1963 | 18.74 | 31.29 | 37.71 | 49.13 | 57.23 | 64.14 | a | 70.23 | 67.74 | 61.53 | 50.48 | 36.03 | 23.94 | 47.35 | ||||||||||||
1964 | 20.90 | 23.10 | 34.68 | 44.43 | 56.13 | 64.10 | 70.94 | 68.81 | 62.10 | a | 48.10 | 36.03 | 27.97 | 46.44 | ||||||||||||
1965 | 30.35 | 26.54 | 31.45 | 47.57 | 55.94 | 64.53 | 70.45 | 67.06 | 59.83 | 46.45 | 41.43 | 31.81 | 47.78 | |||||||||||||
1966 | 20.68 | 26.32 | 37.90 | 47.07 | 57.13 | 64.20 | 71.52 | 65.48 | 60.70 | 42.97 | 36.40 | 24.94 | 46.28 | |||||||||||||
1967 | 24.52 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 24.52 | k | |
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 | 24.68 | 24.68 | k | |
1973 | 27.52 | 31.18 | 38.84 | 38.43 | 51.35 | 59.50 | 66.19 | 63.10 | 56.60 | 44.13 | 33.40 | 23.71 | 44.50 | |||||||||||||
1974 | 24.90 | 24.96 | 39.58 | 45.87 | 58.39 | 63.40 | 67.10 | 62.97 | 53.73 | 48.00 | 34.70 | 26.90 | 45.88 | |||||||||||||
1975 | 26.71 | 27.96 | 34.81 | 40.37 | 49.29 | 60.60 | 65.94 | 65.03 | 56.17 | 46.03 | 31.97 | 26.87 | 44.31 | |||||||||||||
1976 | 24.68 | 36.69 | 38.55 | 49.40 | 54.87 | 65.20 | 67.13 | 67.35 | 59.43 | 42.06 | 28.90 | 22.55 | 46.40 | |||||||||||||
1977 | 24.68 | 33.39 | 35.87 | 47.87 | 59.13 | 66.97 | 70.87 | 71.00 | 64.60 | 50.58 | 37.33 | 31.13 | 49.45 | |||||||||||||
1978 | 24.32 | 31.54 | 40.13 | 50.07 | 56.77 | 65.80 | 70.52 | 66.00 | 58.63 | 46.55 | 39.27 | 23.71 | 47.78 | |||||||||||||
1979 | 24.16 | 28.00 | 35.29 | 45.33 | 53.71 | 60.77 | 68.35 | 63.90 | 58.73 | 47.03 | 30.33 | 26.55 | 45.18 | |||||||||||||
1980 | 28.16 | 30.59 | 35.48 | 41.67 | 53.81 | 67.73 | 71.68 | 66.71 | 60.63 | 44.13 | 30.90 | 29.35 | 46.74 | |||||||||||||
1981 | 29.23 | 29.29 | 38.39 | 48.37 | 54.97 | 63.73 | 67.23 | 63.97 | 57.67 | 47.55 | 37.60 | 29.03 | 47.25 | |||||||||||||
1982 | 24.16 | 28.75 | 37.77 | 46.60 | 53.06 | 61.97 | 68.00 | 68.03 | 61.27 | 44.90 | 35.17 | 27.61 | 46.44 | |||||||||||||
1983 | 26.23 | 31.96 | 38.65 | 39.87 | 50.42 | 61.70 | 68.74 | 68.74 | 63.37 | 51.65 | 39.27 | 22.87 | 46.95 | |||||||||||||
1984 | 26.48 | 31.28 | 36.61 | 44.37 | 58.77 | 64.17 | 67.26 | 65.65 | 56.53 | 45.94 | 35.83 | 30.97 | 46.99 | |||||||||||||
1985 | 24.45 | 28.61 | 39.97 | 48.40 | 56.23 | 62.03 | 66.00 | 67.52 | 59.00 | 48.65 | 37.97 | 23.45 | 46.86 | |||||||||||||
1986 | 27.35 | 32.96 | 39.84 | 48.50 | 53.94 | 62.97 | 65.97 | 66.32 | 59.20 | 47.00 | 32.70 | 28.87 | 47.14 | |||||||||||||
1987 | 24.48 | 31.71 | 33.84 | 41.00 | 53.16 | 61.67 | 65.71 | 65.87 | 56.60 | 48.35 | 33.63 | 24.45 | 45.04 | |||||||||||||
1988 | 23.87 | 29.28 | 33.35 | 43.13 | 52.87 | 62.93 | 65.48 | 67.00 | 57.07 | 48.45 | 36.47 | 26.39 | 45.52 | |||||||||||||
1989 | 26.61 | 30.29 | 38.45 | 48.77 | 58.10 | 63.13 | 68.19 | 66.90 | 57.17 | 46.71 | 34.57 | 21.61 | 46.71 | |||||||||||||
1990 | 25.87 | 30.39 | 39.35 | 48.73 | 56.26 | 69.40 | 67.84 | 64.42 | 63.23 | 46.77 | 37.73 | 26.71 | 48.06 | |||||||||||||
1991 | 28.19 | 35.46 | 40.39 | 48.13 | 58.48 | 65.23 | 67.29 | 66.42 | 56.97 | 45.32 | 33.47 | 30.13 | 47.96 | |||||||||||||
1992 | 26.23 | 32.72 | 37.81 | 46.07 | 54.00 | 59.93 | 66.03 | 65.06 | 58.73 | 48.55 | 30.47 | 27.26 | 46.07 | |||||||||||||
1993 | 30.58 | 31.93 | 37.55 | 46.37 | 54.13 | 64.27 | 69.35 | 65.97 | 56.50 | 43.10 | 28.97 | 25.90 | 46.22 | |||||||||||||
1994 | 24.71 | 27.36 | 38.42 | 45.07 | 56.45 | 67.57 | 69.00 | 68.58 | 58.93 | 48.52 | 37.77 | 32.10 | 47.87 | |||||||||||||
1995 | 30.26 | 36.54 | 38.90 | 43.97 | 56.13 | 62.47 | 67.87 | 69.10 | 59.70 | 46.81 | 37.07 | 30.45 | 48.27 | |||||||||||||
1996 | 26.19 | 34.86 | 33.71 | 45.43 | 61.97 | 66.83 | 69.29 | 66.32 | 57.50 | 45.81 | 33.50 | 26.71 | 47.34 | |||||||||||||
1997 | 24.71 | 29.75 | 37.29 | 41.67 | 54.35 | 60.73 | 66.20 | a | 65.55 | 60.63 | 45.74 | 31.87 | 20.32 | 44.90 | ||||||||||||
1998 | 24.16 | 31.32 | 34.06 | 39.30 | 53.19 | 61.13 | 68.77 | 64.39 | 62.77 | 49.90 | 36.97 | 27.94 | 46.16 | |||||||||||||
1999 | 28.74 | 31.29 | 38.10 | 43.40 | 51.55 | 60.93 | 66.45 | 66.45 | 58.00 | 43.81 | 35.50 | 24.48 | 45.72 | |||||||||||||
2000 | 26.42 | 32.86 | 36.68 | 47.20 | 58.00 | 64.57 | 68.65 | 66.32 | 59.27 | 48.81 | 31.33 | 25.32 | 47.12 | |||||||||||||
2001 | 24.35 | 30.89 | 38.42 | 45.37 | 55.48 | 64.83 | 69.61 | 65.90 | 59.27 | 47.26 | 38.90 | 25.29 | 47.13 | |||||||||||||
2002 | 28.00 | 28.50 | 33.23 | 49.87 | 54.97 | 65.57 | 67.87 | 67.58 | 59.80 | 48.06 | 34.20 | 28.45 | 47.17 | |||||||||||||
2003 | 27.58 | 32.68 | 38.35 | 46.07 | 55.68 | 62.43 | 67.61 | 66.87 | 59.73 | 50.48 | 38.53 | 25.71 | 47.64 | |||||||||||||
2004 | 29.58 | 28.76 | 43.19 | 47.33 | 55.84 | 62.80 | 66.03 | 64.16 | 58.27 | 49.29 | 36.10 | 26.84 | 47.35 | |||||||||||||
2005 | 31.61 | 35.79 | 35.87 | 40.77 | 54.06 | 62.67 | 67.19 | 65.68 | 60.90 | 48.19 | 33.50 | 25.61 | 46.82 | |||||||||||||
2006 | 28.16 | 29.86 | 39.03 | 49.50 | 58.10 | 65.37 | 69.77 | 67.61 | 55.50 | 45.19 | 32.83 | 25.42 | 47.20 | |||||||||||||
2007 | 24.19 | 28.50 | 38.74 | 42.90 | 53.13 | 62.13 | 65.87 | 67.35 | 61.83 | 48.23 | 35.00 | 28.71 | 46.38 | |||||||||||||
2008 | 24.52 | 31.38 | 36.77 | 42.53 | 54.32 | 65.37 | 67.45 | 65.52 | 56.63 | 44.65 | 33.13 | 23.77 | 45.50 | |||||||||||||
2009 | 22.97 | 29.75 | 38.58 | 43.00 | 55.74 | 64.53 | 67.45 | 65.84 | 57.23 | 45.10 | 34.63 | 23.42 | 45.69 | |||||||||||||
2010 | 23.55 | 29.29 | 34.94 | 45.73 | 51.90 | 64.43 | 67.16 | 65.61 | 61.17 | 47.81 | 29.53 | 27.71 | 45.74 | |||||||||||||
2011 | 20.19 | 21.89 | 37.48 | 48.17 | 51.77 | 63.50 | 69.87 | 71.29 | 58.80 | 46.68 | 34.03 | 24.87 | 45.71 | |||||||||||||
2012 | 27.68 | 29.34 | 36.58 | 48.70 | 55.90 | 65.87 | 68.68 | 68.13 | 58.70 | 46.52 | 36.43 | 25.71 | 47.35 | |||||||||||||
2013 | 26.39 | 28.57 | 36.52 | 43.83 | 54.90 | 67.10 | 68.16 | 67.97 | 61.57 | 44.00 | 34.20 | 25.52 | 46.56 | |||||||||||||
2014 | 22.39 | 30.75 | 34.87 | 44.77 | 53.45 | 65.53 | 67.45 | 66.68 | 61.30 | 48.26 | 30.23 | 28.61 | 46.19 | |||||||||||||
2015 | 25.13 | 30.18 | 38.06 | 44.20 | 51.90 | 63.53 | 67.45 | 67.26 | 63.43 | 51.58 | 33.63 | 24.58 | 46.75 | |||||||||||||
2016 | 25.03 | 30.00 | 38.03 | 43.73 | 51.77 | 63.97 | 70.00 | 66.06 | 59.67 | 48.29 | 39.60 | 25.52 | 46.81 | |||||||||||||
2017 | 28.68 | 32.46 | 41.45 | 47.13 | 53.23 | 64.73 | 68.87 | 66.61 | 60.67 | 47.58 | 39.90 | 26.29 | 48.13 | |||||||||||||
2018 | 22.26 | 30.50 | 39.71 | 44.37 | 58.42 | 67.20 | 70.19 | 67.77 | 60.27 | 50.74 | 32.73 | 30.00 | 47.85 | |||||||||||||
2019 | 27.68 | 30.57 | 37.45 | 47.63 | 54.90 | 64.13 | 70.13 | 72.32 | 65.53 | 45.42 | 36.03 | 31.48 | 48.61 | |||||||||||||
2020 | 30.42 | 31.52 | 44.58 | 46.60 | 57.77 | 65.67 | 73.00 | 69.65 | 56.67 | 45.10 | 39.73 | 26.06 | 48.90 | |||||||||||||
2021 | 27.68 | 27.96 | 38.45 | 46.93 | 57.94 | 67.60 | 68.00 | 67.16 | 61.37 | 48.19 | 36.97 | 33.26 | 48.46 | |||||||||||||
2022 | 23.55 | 23.64 | 35.42 | 48.43 | 57.61 | 68.30 | 72.74 | 69.71 | 62.37 | 50.35 | 34.60 | 30.77 | 48.13 | |||||||||||||
2023 | 30.45 | 30.32 | 39.55 | 44.87 | 57.45 | 66.13 | 72.84 | 71.90 | 65.33 | 51.94 | 40.17 | 31.84 | 50.23 | |||||||||||||
2024 | 27.81 | 35.79 | 41.12 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.90 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.27 | 30.57 | 37.57 | 45.64 | 55.27 | 64.42 | 68.43 | 67.00 | 59.70 | 47.46 | 35.00 | 27.10 | 47.03 | |||||||||||||
S.D. | 3.11 | 3.30 | 2.37 | 2.71 | 2.34 | 2.24 | 1.87 | 1.93 | 2.39 | 2.34 | 2.96 | 2.86 | 1.16 | |||||||||||||
SKEW | -0.03 | 0.11 | 0.13 | -0.56 | -0.02 | -0.01 | 0.49 | 0.45 | 0.22 | -0.13 | -0.08 | 0.07 | 0.12 | |||||||||||||
MAX | 32.81 | 40.70 | 44.58 | 50.43 | 61.97 | 69.40 | 73.00 | 72.32 | 65.53 | 51.94 | 41.43 | 33.26 | 50.23 | |||||||||||||
MIN | 18.74 | 21.89 | 31.45 | 38.43 | 49.29 | 59.50 | 65.48 | 62.97 | 53.73 | 42.06 | 28.90 | 20.32 | 44.31 | |||||||||||||
YRS | 71 | 70 | 70 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 70 | 69 |