YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1935 | ----- | z | ----- | z | ----- | z | 61.25 | v | 64.42 | 75.03 | 90.77 | 85.06 | 78.13 | 60.10 | 35.47 | 26.35 | 64.42 | d | ||||||||
1936 | 8.65 | 5.18 | a | 39.77 | 53.00 | 75.35 | 78.80 | 96.90 | 87.52 | 78.00 | 58.43 | a | 38.76 | a | 30.61 | c | 54.25 | |||||||||
1937 | 11.74 | 22.67 | a | 34.23 | 49.47 | 71.32 | 75.62 | a | 87.74 | 88.13 | 75.43 | 57.39 | 40.27 | 24.16 | 53.18 | |||||||||||
1938 | 20.58 | 25.14 | 45.19 | 57.60 | 64.90 | 79.93 | 86.42 | 88.61 | 79.23 | 71.00 | a | 39.87 | 33.41 | b | 57.66 | |||||||||||
1939 | 28.68 | 20.11 | 42.68 | 57.00 | 80.10 | 80.40 | 87.81 | 83.23 | 79.20 | 60.10 | a | 51.90 | 39.97 | 59.26 | ||||||||||||
1940 | 15.68 | 26.71 | a | 31.35 | 52.67 | 68.87 | 78.97 | 88.06 | 77.10 | 76.50 | 67.42 | 34.29 | b | 31.00 | 54.05 | |||||||||||
1941 | 25.13 | 24.86 | 35.81 | 57.43 | 73.77 | 76.07 | 83.55 | 82.87 | 72.77 | 60.42 | 44.10 | 33.87 | 55.89 | |||||||||||||
1942 | 30.65 | 29.39 | 42.97 | 64.27 | 64.29 | 75.10 | 81.68 | 80.42 | 66.00 | 60.65 | 44.77 | 23.77 | 55.33 | |||||||||||||
1943 | 14.13 | 31.75 | 35.39 | 58.27 | 65.48 | 77.83 | 85.61 | 80.81 | 68.23 | 61.65 | 36.50 | 33.87 | 54.13 | |||||||||||||
1944 | 37.77 | 31.07 | 31.94 | 50.90 | 71.32 | 79.90 | 81.97 | 79.87 | 71.87 | 63.77 | 41.37 | 29.48 | 55.94 | |||||||||||||
1945 | 24.13 | 30.11 | 51.13 | 55.27 | 63.87 | 70.63 | 81.81 | 81.61 | 70.23 | 62.65 | 39.40 | 18.71 | 54.13 | |||||||||||||
1946 | 26.06 | 28.46 | 49.65 | 63.10 | 66.61 | 78.57 | 83.16 | 80.35 | 70.63 | 58.94 | 39.77 | 29.74 | 56.25 | |||||||||||||
1947 | 31.74 | 22.04 | 35.00 | 46.87 | 62.52 | 72.63 | 84.29 | 87.97 | 73.37 | 65.35 | 32.77 | 25.52 | 53.34 | |||||||||||||
1948 | 21.35 | 23.48 | 34.50 | i | 61.13 | g | 69.52 | 75.60 | e | 85.61 | 82.29 | 77.97 | 61.29 | 40.90 | 26.61 | 56.46 | b | |||||||||
1949 | 19.90 | 24.57 | 36.94 | 60.00 | 74.48 | ----- | z | 87.65 | 86.84 | 71.10 | 62.13 | 49.80 | 30.19 | 54.87 | a | |||||||||||
1950 | 14.87 | 29.89 | 33.90 | 45.40 | 65.26 | 81.17 | 81.10 | 79.55 | 74.80 | 65.00 | 37.93 | 23.94 | 52.73 | |||||||||||||
1951 | 19.48 | 31.18 | 26.32 | 49.10 | 71.00 | 72.93 | 81.55 | 78.13 | 66.87 | 57.29 | 37.07 | 23.06 | 51.17 | |||||||||||||
1952 | 22.19 | 31.00 | 30.55 | 59.67 | 69.58 | 81.27 | 84.13 | 81.32 | 76.93 | 58.84 | 46.63 | 30.47 | a | 56.05 | ||||||||||||
1953 | 26.32 | 28.93 | 40.48 | 50.07 | 68.39 | 80.73 | 82.61 | 83.48 | 74.80 | 69.13 | 48.50 | 30.58 | 57.00 | |||||||||||||
1954 | 19.58 | 41.64 | 35.23 | 59.73 | 65.77 | 79.77 | 86.77 | 81.03 | 70.47 | 56.00 | 50.37 | 30.87 | 56.44 | |||||||||||||
1955 | 26.03 | 22.61 | 38.87 | 67.53 | 76.97 | b | 77.43 | 89.58 | 87.06 | 74.27 | 64.35 | 34.13 | 20.13 | 56.58 | ||||||||||||
1956 | 21.16 | 24.21 | 35.65 | 53.23 | 70.19 | 85.07 | 79.94 | 81.58 | 72.59 | a | 70.39 | 42.17 | 34.35 | 55.88 | ||||||||||||
1957 | 19.87 | 31.86 | 41.10 | 57.47 | 67.03 | 77.83 | 87.97 | 79.84 | 70.43 | 57.97 | 39.93 | 35.32 | 55.55 | |||||||||||||
1958 | 31.58 | 24.36 | 37.23 | 57.27 | 75.29 | 73.30 | 80.97 | 85.74 | 75.70 | 64.48 | 45.93 | 26.61 | 56.54 | |||||||||||||
1959 | 19.29 | 23.89 | 45.77 | 57.03 | 69.87 | 83.33 | 86.29 | 87.71 | 74.17 | 52.03 | 32.10 | 36.65 | 55.68 | |||||||||||||
1960 | 22.06 | 24.14 | 26.32 | 54.97 | 67.87 | 76.37 | 83.77 | 83.23 | 74.30 | 63.94 | 45.57 | 27.81 | 54.19 | |||||||||||||
1961 | 24.55 | 32.64 | 43.32 | 50.10 | 66.13 | 81.40 | 82.19 | 84.45 | 71.10 | 62.06 | 41.73 | 23.06 | 55.23 | |||||||||||||
1962 | 20.58 | 24.07 | 30.45 | 52.70 | 70.97 | 76.50 | 78.13 | 82.90 | 69.97 | 63.74 | 46.97 | 30.87 | 53.99 | |||||||||||||
1963 | 14.35 | 25.57 | 44.42 | 60.03 | 67.19 | 81.97 | 82.39 | 81.77 | a | 73.73 | 71.26 | 48.33 | 20.55 | 55.96 | ||||||||||||
1964 | 30.74 | 34.90 | 34.45 | 56.77 | 74.06 | 81.63 | 86.52 | 78.84 | 70.80 | 62.29 | 44.40 | 20.55 | 56.33 | |||||||||||||
1965 | 20.10 | 23.39 | 25.97 | 50.73 | 69.94 | 78.87 | 83.26 | 82.06 | 61.33 | 64.48 | 42.57 | 34.65 | 53.11 | |||||||||||||
1966 | 11.61 | 23.25 | 45.74 | 50.13 | 66.68 | 80.20 | 90.00 | 80.06 | 72.87 | 60.29 | 38.53 | 26.16 | 53.79 | |||||||||||||
1967 | 27.03 | 21.04 | 41.77 | 54.83 | 65.45 | 75.97 | 82.16 | 82.77 | 74.40 | 60.35 | 43.17 | 30.03 | 54.92 | |||||||||||||
1968 | 23.19 | 23.79 | 51.42 | 58.03 | 65.13 | 79.23 | 81.87 | 80.65 | 70.57 | 59.42 | 41.53 | 22.74 | 54.80 | |||||||||||||
1969 | 13.48 | 25.81 | a | 29.32 | 56.53 | 70.32 | 72.00 | 82.26 | 84.55 | 74.00 | 53.39 | 41.57 | 28.68 | 52.66 | ||||||||||||
1970 | 13.65 | 28.07 | 33.13 | 53.57 | 70.68 | 81.37 | 85.55 | 82.13 | 72.87 | 57.55 | 37.97 | 25.61 | 53.51 | |||||||||||||
1971 | 17.81 | 26.89 | 37.87 | 60.17 | 68.68 | 80.63 | 79.97 | 85.39 | 73.03 | 62.55 | 41.47 | 24.71 | 54.93 | |||||||||||||
1972 | 18.65 | 21.55 | 36.97 | 49.87 | 70.19 | 78.70 | 80.45 | 80.32 | 70.83 | 56.00 | 37.30 | 22.10 | 51.91 | |||||||||||||
1973 | 26.23 | 30.61 | 46.06 | 54.93 | 68.39 | 83.17 | 84.55 | 86.39 | 71.07 | 67.13 | 43.17 | 23.84 | 57.13 | |||||||||||||
1974 | 22.35 | 28.50 | 39.06 | 58.00 | 65.84 | 79.47 | 89.84 | 80.10 | 72.10 | 63.77 | 42.67 | 32.71 | 56.20 | |||||||||||||
1975 | 25.65 | 22.64 | 33.16 | 44.20 | 73.97 | 77.33 | 89.74 | 82.84 | 70.37 | 64.65 | 44.47 | 27.00 | 54.67 | |||||||||||||
1976 | 22.77 | 36.66 | 40.29 | 62.63 | 71.26 | 84.13 | ----- | z | 86.74 | 76.13 | 56.43 | a | ----- | z | 25.39 | 56.24 | b | |||||||||
1977 | 11.81 | 32.79 | 44.45 | 64.33 | 79.65 | 80.93 | 84.94 | 76.45 | 72.23 | 58.77 | 39.33 | 22.13 | 55.65 | |||||||||||||
1978 | 12.35 | 19.07 | 38.87 | 52.70 | 70.74 | 79.10 | 82.32 | 82.94 | 78.43 | 61.16 | 40.87 | 22.71 | 53.44 | |||||||||||||
1979 | 9.68 | 16.36 | 34.16 | 43.24 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 20.07 | i | |||
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.00 | a | ----- | z | 80.97 | a | 73.83 | 57.42 | 48.57 | 29.73 | a | 61.92 | f | |||
1981 | 31.52 | 36.21 | 51.17 | a | 64.57 | 70.79 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.73 | 23.77 | 46.54 | e | |||||
1982 | 8.00 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | 36.19 | j | 49.43 | b | 66.57 | a | 75.38 | n | ----- | z | ----- | z | 75.43 | 59.00 | a | 39.07 | a | 9.35 | 49.81 | f | ||
1984 | 23.47 | a | 33.69 | c | 32.61 | 55.30 | 67.74 | 78.69 | a | 84.19 | 85.97 | 68.30 | 59.03 | a | 44.97 | 27.07 | b | 55.09 | ||||||||
1985 | 22.13 | a | 28.00 | 44.58 | 63.80 | 74.77 | 77.38 | a | 83.68 | 76.87 | 66.40 | 59.07 | a | 29.21 | a | 19.10 | 53.75 | |||||||||
1986 | 28.87 | a | 22.57 | 44.32 | 58.50 | 70.58 | 81.87 | 85.45 | 78.23 | 69.27 | 59.65 | 37.50 | 36.45 | 56.10 | ||||||||||||
1987 | 32.97 | 43.11 | 45.83 | a | 68.62 | a | 77.29 | 84.67 | 87.39 | 79.45 | 74.33 | 56.06 | 47.40 | 31.27 | a | 60.70 | ||||||||||
1988 | 21.79 | c | 24.38 | 44.97 | 62.21 | b | 78.81 | 87.72 | a | 88.90 | a | 84.83 | a | 71.85 | c | 54.52 | 41.20 | 30.93 | a | 57.68 | ||||||
1989 | 34.81 | 18.72 | c | 35.32 | 55.97 | 71.90 | 81.14 | a | 86.77 | 82.52 | 72.47 | 63.23 | 39.14 | a | 21.19 | 55.26 | ||||||||||
1990 | 38.19 | 34.39 | 44.30 | a | 60.97 | 67.90 | a | 81.60 | 81.13 | 80.16 | 78.63 | 61.71 | 45.73 | 26.70 | a | 58.45 | ||||||||||
1991 | 23.16 | 38.36 | 43.42 | 59.47 | 70.39 | 82.23 | 81.68 | 81.65 | 70.40 | 58.10 | a | 32.53 | 33.16 | 56.21 | ||||||||||||
1992 | 32.65 | 34.93 | 44.55 | 52.23 | 72.45 | 77.00 | 73.94 | 76.40 | a | 72.37 | 58.84 | 34.33 | 26.53 | a | 54.68 | |||||||||||
1993 | 22.35 | 22.46 | 37.23 | 52.59 | a | 66.90 | 73.77 | 79.29 | 80.35 | 67.50 | 58.06 | 37.50 | 28.47 | a | 52.21 | |||||||||||
1994 | 10.84 | 20.36 | 44.27 | a | 57.27 | 75.71 | 81.41 | a | 79.77 | a | 77.68 | 74.10 | 61.48 | 45.83 | a | 31.58 | 55.02 | |||||||||
1995 | 26.90 | 31.04 | a | 41.00 | 48.90 | 66.84 | 80.50 | 85.13 | 83.68 | 71.24 | a | 55.71 | 34.73 | 25.71 | 54.28 | |||||||||||
1996 | 13.87 | a | 27.78 | b | 34.90 | 52.93 | 64.35 | 80.90 | 80.26 | 81.65 | 70.87 | 61.60 | a | 29.97 | 17.61 | 51.39 | ||||||||||
1997 | 19.14 | b | 27.15 | a | 38.74 | 52.67 | 66.47 | a | 84.57 | 82.16 | 79.84 | 76.13 | 62.60 | a | 34.73 | 33.35 | 54.80 | |||||||||
1998 | 23.90 | a | 37.75 | 33.27 | a | 60.77 | 77.71 | 76.93 | 83.35 | 82.81 | 80.83 | a | 61.97 | a | 42.33 | 34.23 | 57.99 | |||||||||
1999 | 21.42 | 36.43 | 44.71 | 57.10 | 69.68 | 78.33 | 87.52 | 82.97 | 72.33 | 61.48 | 55.00 | a | 37.03 | 58.67 | ||||||||||||
2000 | 26.20 | a | 38.72 | 52.87 | 56.67 | 72.97 | 77.80 | 82.39 | 82.90 | 74.93 | 62.94 | 34.63 | 14.27 | a | 56.44 | |||||||||||
2001 | 29.07 | a | 21.07 | 32.58 | 56.73 | 70.35 | 80.50 | 85.87 | 83.00 | 71.83 | 60.07 | a | 56.40 | 32.20 | a | 56.64 | ||||||||||
2002 | 32.77 | 39.71 | 29.16 | 56.34 | a | 67.07 | a | 83.33 | 88.19 | 80.87 | 75.93 | 49.63 | a | 42.73 | 36.52 | 56.86 | ||||||||||
2003 | 26.00 | 26.19 | a | 41.42 | 59.47 | 68.13 | 78.37 | 84.26 | 85.39 | 73.10 | 63.50 | a | 38.97 | 31.65 | 56.37 | |||||||||||
2004 | 21.13 | 29.07 | a | 47.39 | 66.43 | b | 67.00 | 75.13 | 81.06 | 76.00 | 76.97 | 61.06 | 47.67 | 34.63 | a | 56.96 | ||||||||||
2005 | 21.55 | b | 35.64 | 42.13 | 62.20 | 67.13 | 82.27 | 86.71 | 81.13 | 79.50 | 61.87 | 44.20 | 25.40 | a | 57.48 | |||||||||||
2006 | 34.77 | 28.07 | 39.84 | 62.10 | 70.84 | 81.27 | 88.68 | 80.71 | 68.53 | 57.58 | 46.33 | 38.27 | a | 58.08 | ||||||||||||
2007 | 26.97 | 20.36 | 46.83 | a | 55.40 | 74.97 | a | 81.90 | 86.87 | 79.81 | 76.87 | 63.26 | 43.10 | 24.03 | a | 56.70 | ||||||||||
2008 | 23.32 | 26.17 | 38.17 | a | 53.47 | 68.26 | 78.20 | 85.48 | 82.60 | a | 74.83 | 60.39 | 42.40 | 21.61 | 54.58 | |||||||||||
2009 | 19.61 | 29.00 | 38.94 | 55.37 | 70.81 | 76.87 | 78.68 | 79.84 | 76.97 | 48.48 | 50.97 | 21.52 | 53.92 | |||||||||||||
2010 | 17.16 | 19.93 | 42.45 | 66.27 | 70.06 | 78.53 | 84.32 | 85.77 | 70.67 | 64.35 | 42.62 | a | 20.29 | 55.20 | ||||||||||||
2011 | 16.39 | 24.57 | 32.84 | 52.03 | 66.68 | 77.20 | 88.74 | 83.13 | 73.77 | 65.29 | 47.83 | 36.39 | 55.40 | |||||||||||||
2012 | 33.87 | 37.17 | 56.42 | 62.10 | 73.58 | 83.53 | 90.52 | 82.81 | 77.48 | a | 55.97 | 46.40 | 28.26 | 60.68 | ||||||||||||
2013 | 25.94 | 24.79 | 31.42 | 43.97 | 65.65 | 76.77 | 83.35 | 82.71 | 79.50 | 57.65 | 41.80 | 21.19 | 52.89 | |||||||||||||
2014 | 20.81 | 20.07 | 34.97 | 53.47 | 67.94 | 78.70 | 80.43 | a | 81.45 | 73.93 | 61.71 | 33.77 | 29.84 | 53.09 | ||||||||||||
2015 | 27.61 | 20.54 | 47.06 | 61.83 | 68.87 | 80.13 | 85.42 | 80.42 | 80.47 | 63.74 | 49.50 | 32.55 | 58.18 | |||||||||||||
2016 | 22.06 | 30.93 | 48.19 | 59.00 | 72.13 | 84.27 | 84.97 | 82.81 | 74.83 | 61.77 | 52.62 | a | 24.26 | 58.15 | ||||||||||||
2017 | 23.16 | 40.64 | 41.65 | 58.24 | a | 68.77 | 82.37 | 86.77 | 77.68 | 76.20 | 60.87 | 42.00 | 28.32 | 57.22 | ||||||||||||
2018 | 23.13 | 21.11 | 35.94 | 42.43 | 78.77 | 81.57 | 85.50 | c | 84.53 | a | 76.97 | 57.17 | a | 37.53 | 34.77 | 54.95 | ||||||||||
2019 | 24.77 | 16.81 | a | 36.87 | 56.67 | 61.94 | 80.90 | 83.90 | a | 79.68 | 75.63 | 53.93 | a | 37.90 | 29.03 | 53.17 | ||||||||||
2020 | 25.10 | 29.31 | 43.52 | 55.47 | 65.65 | 85.13 | 86.32 | 84.68 | 73.07 | 52.68 | 50.00 | 36.35 | 57.27 | |||||||||||||
2021 | 30.16 | 18.64 | 48.19 | 54.87 | 69.39 | 87.57 | 85.87 | 85.06 | 78.93 | 64.35 | 45.80 | 31.94 | 58.40 | |||||||||||||
2022 | 21.45 | 24.93 | 39.65 | 46.83 | 68.10 | 82.43 | 85.45 | 82.10 | 78.33 | 63.19 | 42.13 | 22.87 | 54.79 | |||||||||||||
2023 | 24.87 | 27.57 | 31.06 | 51.40 | 75.45 | 85.10 | 83.42 | 85.39 | 80.33 | 60.16 | 48.83 | 40.90 | 57.87 | |||||||||||||
2024 | 23.29 | 41.28 | 46.71 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.09 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 22.96 | 27.52 | 39.60 | 56.07 | 69.84 | 79.60 | 84.55 | 82.23 | 73.67 | 60.66 | 42.09 | 28.06 | 55.54 | |||||||||||||
S.D. | 6.52 | 6.75 | 6.55 | 5.53 | 4.06 | 3.43 | 3.50 | 2.92 | 3.71 | 4.24 | 5.66 | 5.96 | 1.98 | |||||||||||||
SKEW | 0.02 | 0.09 | 0.08 | -0.11 | 0.58 | -0.17 | 0.22 | 0.11 | -0.35 | -0.14 | 0.07 | -0.27 | 0.19 | |||||||||||||
MAX | 38.19 | 43.11 | 56.42 | 68.62 | 80.10 | 87.72 | 96.90 | 88.61 | 80.83 | 71.26 | 56.40 | 40.90 | 60.70 | |||||||||||||
MIN | 8.65 | 5.18 | 25.97 | 42.43 | 61.94 | 70.63 | 73.94 | 76.00 | 61.33 | 48.48 | 29.21 | 9.35 | 51.17 | |||||||||||||
YRS | 86 | 86 | 85 | 84 | 86 | 84 | 83 | 85 | 86 | 86 | 86 | 87 | 80 |