YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 80.10 | a | 61.81 | 50.77 | 40.61 | 58.32 | h | |||
1940 | 19.97 | 33.00 | 37.13 | 56.93 | 69.74 | 81.43 | 86.74 | 79.87 | 76.27 | 66.71 | 42.30 | 33.26 | 56.95 | |||||||||||||
1941 | 29.94 | 31.36 | 40.45 | 65.43 | 76.53 | a | 80.10 | a | 86.48 | 85.58 | 76.40 | 63.39 | 48.93 | 38.61 | 60.27 | |||||||||||
1942 | 29.94 | 30.11 | 46.10 | 67.17 | 69.45 | 79.53 | 84.16 | 82.06 | 69.87 | 64.43 | a | 46.40 | 25.00 | o | 60.84 | a | ||||||||||
1943 | 23.63 | a | 34.04 | a | 38.16 | 58.37 | 69.00 | a | 82.17 | a | 86.71 | 83.39 | 69.62 | a | 62.60 | a | 40.47 | 36.10 | 57.02 | |||||||
1944 | ----- | z | 36.03 | 37.29 | 55.59 | a | 74.39 | 81.67 | 83.65 | 84.42 | 73.57 | 64.25 | c | 47.12 | d | 28.52 | 60.59 | a | ||||||||
1945 | 24.84 | 32.43 | 55.60 | a | 58.21 | a | 65.77 | 73.83 | 82.68 | 82.90 | 72.50 | 61.39 | 45.23 | 26.92 | g | 59.58 | a | |||||||||
1946 | 31.58 | 34.32 | 54.61 | 65.70 | 69.42 | 79.23 | 84.35 | 79.61 | 72.77 | 66.52 | 46.80 | 35.16 | 60.01 | |||||||||||||
1947 | 34.26 | 26.46 | 39.67 | a | 54.47 | 65.29 | 75.86 | a | 83.87 | 89.03 | 76.37 | 70.74 | 38.10 | 31.87 | 57.17 | |||||||||||
1948 | 24.23 | 30.66 | 43.39 | 65.30 | 71.17 | a | 79.40 | 86.52 | 84.81 | 80.20 | 62.84 | 45.30 | 31.74 | 58.79 | ||||||||||||
1949 | 27.97 | 29.89 | 41.65 | 60.80 | 74.40 | a | 83.33 | 86.58 | 84.87 | 70.50 | 66.39 | 47.77 | 34.52 | 59.06 | ||||||||||||
1950 | 31.19 | 31.75 | 36.71 | 50.40 | 68.97 | 78.80 | 81.16 | 77.42 | 73.17 | 67.74 | 40.97 | 24.97 | 55.27 | |||||||||||||
1951 | 23.84 | 30.64 | 35.61 | 51.77 | 73.16 | 75.47 | 82.17 | a | 77.39 | 69.70 | 60.81 | 37.93 | 28.52 | 53.92 | ||||||||||||
1952 | 30.03 | 36.17 | 38.71 | 60.60 | 68.97 | 80.93 | 85.32 | 79.58 | 75.70 | 59.35 | 48.87 | 32.87 | 58.09 | |||||||||||||
1953 | 30.52 | 33.32 | 43.10 | 51.57 | 70.03 | 81.87 | 82.97 | 83.35 | 75.47 | 70.48 | 51.73 | 35.55 | 59.16 | |||||||||||||
1954 | 28.77 | 43.57 | 42.35 | 61.70 | 65.32 | 82.63 | 85.61 | 81.45 | 74.50 | 59.58 | 48.77 | 33.06 | 58.94 | |||||||||||||
1955 | 27.71 | 30.39 | 41.03 | ----- | z | 74.97 | 78.57 | 90.10 | 88.16 | 78.07 | 63.26 | 39.70 | 27.55 | 58.14 | a | |||||||||||
1956 | 28.58 | 31.31 | 37.74 | 55.00 | 70.94 | 84.77 | 81.10 | 82.45 | 72.97 | 69.77 | 44.00 | 34.84 | 57.79 | |||||||||||||
1957 | 23.71 | 36.50 | 43.68 | 59.33 | 68.40 | a | 79.40 | 87.42 | 81.57 | a | 71.80 | 59.74 | 41.97 | 37.48 | 57.58 | |||||||||||
1958 | 30.13 | 28.29 | 43.48 | 60.67 | 74.13 | 75.70 | 81.71 | 83.94 | 74.87 | 66.03 | 48.70 | 27.26 | 57.91 | |||||||||||||
1959 | 22.81 | 27.86 | 40.58 | 58.73 | 74.26 | 81.48 | a | 83.10 | 84.61 | 74.17 | 54.03 | 36.67 | 38.52 | 56.40 | ||||||||||||
1960 | 30.35 | 30.97 | 34.52 | 59.63 | 69.00 | 77.73 | 83.29 | 82.90 | 74.70 | 61.61 | 48.73 | 31.48 | 57.08 | |||||||||||||
1961 | 27.29 | 37.54 | 43.10 | 52.47 | 70.52 | 81.67 | 83.55 | 84.32 | 72.43 | 64.55 | 44.97 | 28.97 | 57.61 | |||||||||||||
1962 | 22.77 | 27.25 | 38.77 | 56.13 | 74.23 | 78.83 | 79.94 | 81.84 | 70.53 | 63.58 | 45.87 | 30.74 | 55.87 | |||||||||||||
1963 | 16.26 | 26.93 | 46.55 | 61.23 | 69.55 | 84.27 | 85.58 | 81.10 | a | 74.13 | 73.00 | a | 49.80 | 22.16 | 57.55 | |||||||||||
1964 | 34.87 | 38.21 | 40.61 | 59.37 | 75.65 | 81.10 | 86.94 | 80.10 | 72.10 | 60.48 | 47.83 | a | 27.52 | 58.73 | ||||||||||||
1965 | 24.97 | 28.14 | 32.81 | 52.52 | a | 73.68 | 78.70 | 82.52 | 79.61 | 66.67 | 61.77 | 45.27 | 37.87 | 55.38 | ||||||||||||
1966 | 19.52 | 30.14 | 47.47 | a | 53.23 | 67.52 | 80.30 | 85.32 | 79.94 | 72.67 | 62.00 | 44.50 | 30.77 | 56.11 | ||||||||||||
1967 | 30.58 | 25.96 | 43.42 | 57.50 | 66.32 | 78.00 | 80.03 | 77.77 | 72.20 | 57.97 | 39.47 | 32.45 | 55.14 | |||||||||||||
1968 | 26.74 | 28.38 | 52.71 | 61.77 | 67.42 | 77.67 | 81.61 | 81.97 | 72.40 | 61.84 | 43.40 | 30.10 | 57.17 | |||||||||||||
1969 | 22.39 | 30.93 | 37.16 | 59.73 | 70.45 | 71.20 | 81.61 | 83.32 | 72.83 | 56.87 | 44.13 | 30.52 | 55.10 | |||||||||||||
1970 | 18.61 | 30.67 | a | 39.35 | 58.93 | 70.29 | 79.87 | 84.90 | 82.32 | 70.43 | 61.32 | 42.53 | 29.81 | 55.75 | ||||||||||||
1971 | 19.42 | 27.07 | 37.39 | 59.83 | 68.58 | 83.27 | 79.42 | 81.03 | 74.87 | 66.55 | 44.53 | 32.03 | 56.17 | |||||||||||||
1972 | 22.10 | 25.59 | 38.68 | 52.30 | 73.13 | 77.70 | 79.74 | 78.97 | 71.17 | 55.65 | 40.20 | 24.00 | 53.27 | |||||||||||||
1973 | 29.16 | 32.64 | 50.10 | 53.20 | 65.74 | 79.53 | 83.19 | 81.90 | 70.60 | 67.03 | 45.40 | 28.74 | 57.27 | |||||||||||||
1974 | 25.13 | 30.50 | 42.00 | 60.17 | 65.55 | 76.50 | 86.37 | a | 79.19 | 68.83 | 61.47 | a | 45.27 | 32.52 | 56.12 | |||||||||||
1975 | 27.74 | 27.89 | 35.32 | 50.57 | 72.58 | 78.00 | 84.16 | 83.00 | 68.73 | 66.29 | 49.90 | 31.48 | 56.31 | |||||||||||||
1976 | 26.42 | 39.59 | 44.68 | 61.50 | 69.23 | 82.13 | 85.47 | a | 82.16 | 73.43 | 56.00 | 38.80 | 24.42 | 56.99 | ||||||||||||
1977 | 12.81 | 32.89 | 49.55 | 67.17 | a | 79.32 | 78.27 | 85.48 | 76.87 | 71.23 | 58.74 | 42.33 | 25.71 | 56.70 | ||||||||||||
1978 | 17.77 | 23.29 | 40.39 | 56.53 | 71.29 | 79.57 | 80.48 | 81.68 | 76.73 | 58.61 | 43.47 | 27.39 | 54.77 | |||||||||||||
1979 | 13.45 | 22.68 | 39.52 | 52.50 | 69.29 | 78.73 | 82.42 | 79.23 | 75.90 | a | 58.61 | 41.97 | 36.39 | 54.22 | ||||||||||||
1980 | 25.26 | 25.86 | 38.87 | 59.14 | a | 74.29 | 80.17 | a | 86.26 | 81.52 | 73.13 | 56.87 | 46.47 | 30.77 | 56.55 | |||||||||||
1981 | 30.19 | 35.07 | 47.71 | 61.57 | 69.27 | a | 78.83 | 81.55 | 79.68 | 70.93 | a | 57.06 | 47.17 | 29.42 | 57.37 | |||||||||||
1982 | 16.65 | 29.39 | 39.03 | 54.07 | 71.20 | a | 74.20 | 83.00 | 80.48 | 70.27 | 61.61 | 43.67 | 36.81 | 55.03 | ||||||||||||
1983 | 29.60 | a | 35.39 | 42.71 | 51.41 | a | 63.90 | 78.72 | a | 87.10 | 87.10 | 74.38 | a | 59.71 | c | 43.27 | 16.77 | a | 55.84 | |||||||
1984 | 24.34 | b | 38.07 | 36.52 | 57.30 | 66.52 | b | 80.63 | 81.71 | 84.32 | 73.20 | 62.52 | 44.00 | 31.97 | 56.76 | |||||||||||
1985 | 21.74 | 26.71 | 46.00 | 63.87 | 74.68 | 77.23 | 84.45 | 78.80 | a | 71.13 | 60.58 | 36.13 | 20.55 | 55.16 | ||||||||||||
1986 | 28.39 | 26.50 | 46.40 | a | 62.77 | 71.26 | 80.07 | 84.19 | 77.23 | a | 70.79 | a | 60.19 | 39.72 | a | 31.58 | 56.59 | |||||||||
1987 | 29.87 | 40.18 | 47.77 | 65.97 | a | 75.13 | 84.60 | 85.87 | 78.32 | 72.63 | 56.39 | 48.03 | 33.71 | 59.87 | ||||||||||||
1988 | 23.66 | b | 25.76 | 45.84 | 59.90 | 77.65 | 86.00 | 87.52 | 86.65 | 75.07 | 55.52 | 45.73 | 32.13 | 58.45 | ||||||||||||
1989 | 35.29 | 24.18 | 39.00 | 56.52 | a | 69.14 | b | 77.93 | 85.74 | 81.13 | 70.97 | 63.16 | 40.21 | b | 22.87 | 55.51 | ||||||||||
1990 | 37.19 | 36.21 | 46.61 | 59.33 | 66.65 | 79.10 | 81.45 | 80.55 | 74.47 | 61.06 | 50.80 | 29.10 | 58.54 | |||||||||||||
1991 | 23.39 | 36.57 | 46.13 | 60.77 | 72.48 | 82.43 | 82.23 | 80.97 | 70.80 | 60.29 | 35.57 | 31.90 | 56.96 | |||||||||||||
1992 | 30.97 | 36.48 | 42.35 | 53.00 | 72.57 | a | 76.20 | 78.06 | 77.65 | 70.79 | a | 59.77 | 37.67 | 30.52 | 55.50 | |||||||||||
1993 | 27.40 | a | 26.25 | 40.36 | c | 54.23 | 68.19 | j | 77.42 | f | 79.19 | 81.70 | a | 67.41 | a | 59.55 | 41.50 | 30.97 | 50.86 | b | ||||||
1994 | 16.84 | 23.18 | 44.97 | a | 59.25 | b | 71.25 | c | 81.03 | 78.94 | 76.70 | a | 73.83 | a | 61.63 | d | 48.03 | 34.68 | 55.86 | |||||||
1995 | 26.13 | 31.73 | b | 45.60 | a | 53.48 | c | 68.52 | 82.50 | 83.65 | 85.10 | b | 71.17 | 58.58 | 38.07 | 27.81 | 56.03 | |||||||||
1996 | 22.03 | 28.96 | a | 38.00 | 54.75 | b | 65.13 | 77.40 | 79.94 | 80.90 | 71.07 | 60.90 | 35.61 | b | 26.60 | a | 53.44 | |||||||||
1997 | 23.10 | 32.00 | 42.03 | a | 55.44 | c | 65.61 | 80.37 | 81.27 | a | 75.80 | a | 71.80 | 61.48 | 38.90 | a | 33.81 | 55.13 | ||||||||
1998 | 29.06 | 38.93 | 42.42 | 62.07 | 75.90 | a | 76.33 | 82.84 | 81.42 | 78.73 | 61.55 | 48.17 | 38.10 | a | 59.63 | |||||||||||
1999 | 23.10 | a | 38.21 | 45.32 | 61.00 | 71.30 | a | 78.40 | 86.17 | a | 78.80 | a | 72.39 | b | 61.87 | 53.67 | 34.68 | 58.74 | ||||||||
2000 | 27.23 | 38.19 | b | 51.57 | a | 60.18 | b | 71.19 | 76.27 | 81.06 | ----- | z | 73.14 | a | 64.53 | a | 40.60 | 17.97 | 54.72 | a | ||||||
2001 | 29.97 | 26.81 | a | 38.60 | a | 62.62 | a | 69.90 | a | 77.27 | 85.43 | a | 82.80 | a | 69.73 | 57.94 | 56.73 | 37.81 | 57.97 | |||||||
2002 | 37.29 | 40.11 | 38.87 | 57.41 | a | 68.23 | 80.28 | a | 85.71 | 80.59 | d | 75.34 | a | 51.63 | d | 43.75 | b | 35.33 | a | 57.88 | ||||||
2003 | 25.42 | 28.96 | a | 42.45 | b | 58.96 | c | 68.79 | b | 77.21 | a | 82.23 | a | 84.10 | a | 72.15 | d | 61.90 | b | 43.23 | d | 34.93 | a | 56.70 | ||
2004 | 23.71 | 32.30 | b | 46.07 | a | 61.21 | a | 68.73 | a | 75.48 | c | 79.32 | 76.57 | a | 77.88 | d | 61.24 | b | 47.17 | a | 33.55 | b | 56.94 | |||
2005 | 25.39 | 35.29 | 41.94 | 62.74 | c | 66.97 | b | 84.76 | a | 85.57 | c | 81.74 | 77.83 | 64.14 | b | 47.29 | b | 27.83 | a | 58.46 | ||||||
2006 | 38.45 | 33.86 | 43.07 | b | 65.31 | d | 69.96 | c | 81.00 | b | 88.26 | 80.74 | d | 71.37 | c | 56.68 | 47.63 | 38.19 | 59.54 | |||||||
2007 | 31.81 | 22.57 | 49.00 | 57.97 | 75.74 | 81.03 | 83.84 | 81.84 | 76.97 | 65.00 | 44.13 | 27.58 | 58.12 | |||||||||||||
2008 | 24.84 | 25.90 | 39.48 | 56.13 | 68.55 | b | 78.50 | 83.39 | 81.87 | a | 73.70 | 60.84 | 44.57 | 26.16 | 55.33 | |||||||||||
2009 | 20.42 | 34.21 | 48.23 | a | 59.48 | a | 69.94 | 78.40 | 77.23 | 78.45 | 75.62 | a | 52.23 | 52.03 | 28.31 | b | 56.21 | |||||||||
2010 | 22.52 | 30.00 | 51.06 | 67.10 | 72.74 | 79.43 | 84.63 | a | 85.97 | 72.47 | 66.63 | a | 47.14 | a | 25.58 | 58.77 | ||||||||||
2011 | 22.13 | 31.29 | 41.94 | 56.73 | 70.67 | a | 82.18 | b | 87.90 | 83.57 | a | 70.21 | a | 64.35 | 48.63 | 36.97 | 58.05 | |||||||||
2012 | 34.10 | 36.90 | 60.68 | 63.27 | 77.42 | 83.27 | 90.26 | 83.16 | 74.50 | 59.29 | 48.07 | 34.81 | 62.14 | |||||||||||||
2013 | 30.55 | 29.82 | 35.57 | a | 50.13 | 70.13 | 77.17 | 82.94 | 81.81 | 77.57 | 60.55 | 43.03 | 25.16 | 55.37 | ||||||||||||
2014 | 21.03 | 21.39 | 38.35 | 56.30 | 70.39 | 80.03 | 78.90 | 81.77 | a | 73.13 | 59.33 | a | 37.00 | a | 33.26 | 54.24 | ||||||||||
2015 | 27.94 | 22.32 | 46.81 | 61.83 | 72.42 | 78.90 | a | 82.47 | a | 80.10 | 78.47 | 63.97 | 51.77 | 39.13 | 58.84 | |||||||||||
2016 | 27.97 | 33.34 | 50.29 | x | 60.50 | 71.74 | 82.30 | 83.74 | 81.74 | 75.07 | 64.94 | 53.57 | 27.52 | 60.22 | a | |||||||||||
2017 | 28.03 | 44.96 | c | 45.30 | a | 62.03 | 68.65 | 82.00 | 84.67 | a | 79.23 | 78.80 | 63.29 | 45.20 | 30.74 | 59.41 | ||||||||||
2018 | 28.16 | 31.21 | 44.06 | 49.29 | b | 78.45 | 82.20 | 84.16 | 82.65 | 76.17 | a | 58.00 | a | 36.34 | a | 35.45 | 57.18 | |||||||||
2019 | 19.00 | w | 23.00 | l | 37.52 | 56.34 | a | 63.52 | 76.53 | 84.48 | 79.65 | 74.50 | 55.13 | 36.43 | 35.00 | 59.91 | b | |||||||||
2020 | 30.07 | a | 31.59 | 45.19 | 53.52 | a | 66.74 | 80.20 | 85.00 | a | 82.27 | a | 69.27 | 53.16 | 51.03 | a | 34.35 | 56.87 | ||||||||
2021 | 29.16 | 19.96 | 50.06 | 56.57 | 67.68 | 83.77 | 82.60 | a | 81.61 | 75.27 | 65.23 | 45.77 | 36.42 | 57.84 | ||||||||||||
2022 | 20.87 | 27.50 | 42.10 | 50.24 | a | 69.81 | 80.48 | c | 82.32 | 80.00 | 74.10 | 60.68 | 46.53 | 26.13 | 55.06 | |||||||||||
2023 | 29.42 | 33.61 | 41.39 | 57.10 | a | 71.13 | 81.53 | 82.13 | 82.48 | 75.80 | 62.00 | 46.97 | 39.71 | 58.61 | ||||||||||||
2024 | 25.94 | 45.17 | 48.90 | 55.96 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.99 | h | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.25 | 31.41 | 42.89 | 58.20 | 70.55 | 79.66 | 83.62 | 81.51 | 73.36 | 61.52 | 44.63 | 31.31 | 57.03 | |||||||||||||
S.D. | 5.21 | 5.35 | 5.14 | 4.44 | 3.45 | 2.73 | 2.69 | 2.66 | 2.87 | 4.07 | 4.66 | 4.96 | 1.73 | |||||||||||||
SKEW | -0.17 | 0.30 | 0.75 | -0.00 | 0.34 | -0.21 | -0.02 | 0.28 | 0.24 | 0.13 | -0.05 | -0.51 | 0.18 | |||||||||||||
MAX | 38.45 | 45.17 | 60.68 | 67.17 | 79.32 | 86.00 | 90.26 | 89.03 | 80.20 | 73.00 | 56.73 | 40.61 | 62.14 | |||||||||||||
MIN | 12.81 | 19.96 | 32.81 | 49.29 | 63.52 | 71.20 | 77.23 | 75.80 | 66.67 | 51.63 | 35.57 | 16.77 | 53.27 | |||||||||||||
YRS | 83 | 84 | 84 | 84 | 83 | 83 | 84 | 83 | 85 | 85 | 85 | 83 | 76 |