YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.55 | 60.17 | a | 53.83 | 40.68 | 27.07 | a | 22.23 | 44.59 | f | ||||
1936 | 27.73 | a | 29.38 | p | 29.87 | a | 41.43 | 50.90 | a | 58.63 | 66.07 | c | 63.62 | b | 49.18 | b | 41.80 | a | 25.03 | a | 26.58 | 43.71 | a | |||
1937 | 6.97 | a | 23.85 | a | 35.43 | a | 37.87 | 49.16 | 55.00 | 67.23 | 60.13 | a | 53.28 | a | 42.67 | a | 37.47 | 31.57 | a | 41.72 | ||||||
1938 | 28.79 | c | 33.72 | c | 33.13 | a | 40.73 | 47.00 | d | 56.76 | a | 65.07 | b | 60.67 | a | 56.45 | a | 43.87 | a | 26.79 | b | 26.97 | 43.33 | |||
1939 | 28.03 | 25.29 | 34.26 | 42.03 | 49.77 | 53.10 | 64.77 | 63.39 | 51.87 | 43.10 | 29.47 | 30.33 | a | 42.95 | ||||||||||||
1940 | 27.97 | 33.04 | a | 36.61 | 41.70 | 50.97 | 61.17 | 66.30 | a | 63.81 | 54.97 | 44.97 | 29.73 | 27.84 | 44.92 | |||||||||||
1941 | 26.97 | 32.96 | 35.60 | a | 40.93 | 49.74 | 54.80 | 65.45 | 61.48 | 47.63 | c | 40.57 | c | 32.12 | f | 30.61 | 44.25 | a | ||||||||
1942 | 16.77 | 25.04 | b | 30.14 | b | 41.07 | 44.52 | 51.80 | 65.23 | 60.61 | 51.68 | b | 42.35 | 32.27 | 29.94 | 40.95 | ||||||||||
1943 | 24.84 | 28.07 | 30.06 | 44.03 | 45.63 | a | 51.50 | 60.47 | a | 59.33 | a | 52.67 | 42.81 | 30.40 | 24.61 | 41.20 | ||||||||||
1944 | 16.53 | a | 28.14 | 28.52 | b | 37.72 | a | 47.90 | 51.66 | a | 60.87 | a | 57.81 | 49.63 | 43.61 | 32.57 | 23.77 | a | 39.89 | |||||||
1945 | 27.07 | b | 31.07 | a | 29.72 | b | 37.73 | 46.60 | a | 51.52 | a | 63.27 | a | 60.30 | a | 46.67 | 42.32 | 33.33 | 25.29 | 41.24 | ||||||
1946 | 24.43 | a | 26.50 | 35.24 | b | 40.57 | b | 47.44 | d | 55.31 | a | 64.55 | 60.06 | 47.57 | 37.39 | 30.53 | 30.35 | 41.66 | ||||||||
1947 | 17.20 | a | 29.35 | b | 35.07 | a | 41.10 | 52.32 | 53.00 | 64.39 | 58.68 | 48.50 | 43.10 | b | 31.00 | b | 26.42 | 41.68 | ||||||||
1948 | 22.74 | 25.76 | 30.50 | a | 38.77 | 46.70 | a | 59.00 | 61.65 | 58.71 | 50.43 | 40.68 | 30.83 | 20.34 | b | 40.51 | ||||||||||
1949 | 5.16 | 23.68 | 34.96 | c | 42.37 | 52.76 | b | 57.03 | 63.81 | 62.94 | 54.43 | 37.74 | 35.10 | 27.35 | 41.44 | |||||||||||
1950 | 22.00 | 28.43 | 33.61 | 39.67 | 45.06 | 54.03 | 64.65 | 60.94 | 54.43 | 46.06 | 36.00 | 32.52 | 43.12 | |||||||||||||
1951 | 25.32 | 30.56 | a | 29.61 | 40.76 | a | 48.65 | 54.40 | 64.71 | 61.26 | 51.00 | 41.77 | 32.47 | 25.26 | 42.15 | |||||||||||
1952 | 21.26 | 24.86 | 30.55 | 42.17 | 49.19 | 55.30 | 63.13 | 63.23 | 53.13 | 43.55 | 27.37 | 29.87 | 41.97 | |||||||||||||
1953 | 36.65 | 31.61 | 34.84 | 38.57 | 45.06 | 52.17 | 64.87 | 62.16 | 53.97 | 43.84 | 38.38 | a | 27.35 | 44.12 | ||||||||||||
1954 | 31.65 | 32.14 | 31.71 | 41.63 | 50.16 | 52.80 | 64.13 | a | 58.32 | 50.80 | 41.13 | 35.14 | a | 24.84 | 42.87 | |||||||||||
1955 | 21.19 | 23.64 | 30.35 | 37.79 | b | 46.28 | b | 56.62 | a | 61.42 | 64.48 | d | 53.61 | b | 43.48 | b | 30.30 | 30.84 | 41.67 | |||||||
1956 | 29.00 | 21.66 | 34.25 | g | 42.10 | 50.93 | b | 55.00 | 64.06 | 59.84 | 51.43 | 41.84 | 28.97 | 25.96 | c | 42.80 | a | |||||||||
1957 | 17.97 | 28.82 | 36.10 | a | 41.17 | a | 50.48 | 57.57 | 62.68 | 59.74 | 52.63 | 42.00 | 30.67 | 30.77 | 42.55 | |||||||||||
1958 | 27.35 | 35.75 | 33.52 | 40.47 | 53.61 | 58.50 | 63.58 | 65.16 | 51.93 | 43.32 | 32.93 | 31.65 | 44.81 | |||||||||||||
1959 | 31.00 | 31.36 | 33.26 | 41.60 | 45.13 | 59.07 | 64.77 | 61.10 | 51.93 | 43.42 | 28.30 | 23.55 | 42.87 | |||||||||||||
1960 | 20.42 | 28.76 | 35.23 | 40.63 | 45.97 | 57.77 | 68.29 | 58.03 | 55.27 | 40.90 | 35.00 | 23.84 | 42.51 | |||||||||||||
1961 | 24.26 | 34.46 | 36.35 | 40.13 | 49.32 | 61.73 | 66.16 | 66.19 | 48.53 | 41.13 | 29.73 | 26.32 | 43.69 | |||||||||||||
1962 | 15.81 | 27.11 | 31.42 | 42.53 | 47.90 | 54.97 | 61.23 | 59.39 | 52.57 | 43.03 | 34.73 | 30.26 | 41.74 | |||||||||||||
1963 | 18.29 | 35.68 | 35.29 | 38.67 | 51.23 | 54.50 | 60.74 | 62.00 | 57.50 | 47.71 | 36.17 | 25.16 | 43.58 | |||||||||||||
1964 | 24.16 | 24.10 | 31.06 | 37.93 | a | 46.90 | 54.47 | 63.03 | 58.52 | 49.77 | 42.58 | 32.67 | 30.16 | 41.28 | ||||||||||||
1965 | 30.06 | 30.50 | 29.81 | 43.73 | 46.58 | 55.80 | 61.84 | 59.74 | 47.57 | 42.71 | 37.33 | 25.42 | 42.59 | |||||||||||||
1966 | 29.03 | 28.43 | 33.94 | 40.13 | 50.16 | 55.00 | 62.52 | 61.65 | 56.00 | 39.45 | 37.03 | 28.35 | 43.47 | |||||||||||||
1967 | 32.13 | 31.36 | 34.84 | 37.67 | 47.61 | 56.23 | 67.45 | 64.94 | 57.14 | a | 41.90 | 35.43 | 24.42 | 44.26 | ||||||||||||
1968 | 24.32 | 33.72 | 37.10 | 38.53 | 48.16 | 57.30 | 64.16 | 58.71 | 51.97 | 42.32 | 35.30 | 29.00 | 43.38 | |||||||||||||
1969 | 28.06 | 29.82 | 31.26 | 40.80 | 51.97 | 56.90 | 63.35 | 60.94 | 52.73 | 38.58 | 31.13 | 29.32 | 42.91 | |||||||||||||
1970 | 31.55 | 31.36 | 34.10 | 36.13 | 47.16 | 57.52 | a | 63.56 | d | 62.10 | 46.03 | 38.42 | 36.43 | 28.45 | 42.73 | |||||||||||
1971 | 29.35 | 30.79 | 32.84 | 39.37 | 49.71 | 54.53 | 62.84 | 65.16 | 46.93 | 40.06 | 33.37 | 26.45 | 42.62 | |||||||||||||
1972 | 25.16 | 29.24 | 36.26 | 38.70 | 47.90 | 56.70 | 61.06 | 61.06 | 46.57 | 42.16 | 33.73 | 18.71 | 41.44 | |||||||||||||
1973 | 24.63 | a | 30.57 | 34.97 | 40.41 | a | 50.16 | 56.30 | 64.26 | 61.74 | 50.97 | 42.42 | 36.63 | 32.00 | 43.76 | |||||||||||
1974 | 23.97 | 30.04 | a | 34.77 | 39.90 | 47.39 | 60.07 | a | 62.84 | 60.32 | 51.37 | 42.19 | 36.03 | 29.06 | 43.16 | |||||||||||
1975 | 23.94 | 31.32 | 34.55 | 37.33 | 46.84 | 54.33 | 66.71 | 59.06 | 52.07 | 44.19 | 33.47 | 29.42 | 42.77 | |||||||||||||
1976 | 27.61 | 28.90 | 30.26 | 39.72 | a | 50.10 | 54.13 | 63.87 | 58.00 | 54.07 | 40.77 | 31.60 | 21.39 | 41.70 | ||||||||||||
1977 | 17.97 | 27.00 | 33.35 | 44.50 | 46.35 | 61.53 | 62.58 | 63.26 | 51.60 | 41.19 | 32.07 | 30.70 | a | 42.68 | ||||||||||||
1978 | 32.52 | 33.71 | 39.23 | 42.27 | d | 47.23 | 55.87 | 63.42 | 60.35 | 52.23 | 42.13 | 29.73 | 22.06 | 43.40 | ||||||||||||
1979 | 13.58 | 28.96 | 36.58 | 40.07 | 50.52 | 56.87 | 65.03 | 62.13 | 54.60 | 45.55 | 28.40 | 29.74 | 42.67 | |||||||||||||
1980 | 25.13 | 31.97 | 35.61 | 44.37 | 49.29 | 53.10 | 63.90 | 58.84 | 51.63 | 40.58 | 31.53 | 26.61 | 42.71 | |||||||||||||
1981 | 28.94 | 28.36 | 34.97 | 40.97 | 47.10 | 53.30 | 61.00 | 62.77 | 52.83 | 39.19 | 37.07 | 30.16 | 43.05 | |||||||||||||
1982 | 21.06 | 24.71 | 34.23 | a | 36.23 | 46.26 | 56.87 | 60.26 | 60.77 | ----- | z | 42.03 | 29.83 | 27.65 | 39.99 | a | ||||||||||
1983 | 28.48 | 34.00 | a | 38.00 | 37.37 | 46.32 | 54.07 | 59.68 | 63.42 | 50.97 | 41.90 | 36.40 | 22.74 | 42.78 | ||||||||||||
1984 | 19.77 | a | 25.93 | a | 34.87 | 38.43 | b | 44.77 | 50.10 | 63.52 | 62.33 | a | 47.00 | 37.23 | 33.13 | 18.27 | a | 39.61 | ||||||||
1985 | 15.16 | 20.82 | 29.52 | 42.60 | 48.42 | 56.10 | 67.80 | a | 58.13 | 47.30 | 39.26 | 24.07 | 10.00 | a | 38.26 | |||||||||||
1986 | 26.23 | 35.56 | a | 40.26 | 40.13 | 48.47 | a | 60.83 | 60.45 | 64.42 | 49.57 | 40.23 | 34.03 | 23.00 | a | 43.60 | ||||||||||
1987 | 21.35 | 29.14 | 35.61 | ----- | z | 52.68 | 58.67 | 59.57 | a | 58.52 | 49.63 | 40.65 | 31.32 | b | 24.03 | 41.92 | a | |||||||||
1988 | 20.23 | 27.41 | 34.68 | 41.77 | 46.81 | 58.33 | 61.87 | 53.16 | 47.37 | 48.48 | b | 36.33 | 23.23 | 41.64 | ||||||||||||
1989 | 21.03 | 17.89 | 36.90 | 43.83 | 47.06 | 57.93 | 64.35 | 58.55 | 51.13 | 41.61 | 29.90 | a | 23.81 | 41.17 | ||||||||||||
1990 | 29.13 | 26.71 | 35.68 | 45.43 | 46.32 | 54.77 | 63.07 | a | 60.45 | 55.50 | 39.71 | 30.93 | 10.90 | b | 41.55 | |||||||||||
1991 | 17.27 | a | 33.86 | 36.39 | 40.17 | 47.94 | 54.90 | 64.71 | 63.71 | 51.97 | a | 39.55 | 30.28 | a | 22.93 | a | 41.97 | |||||||||
1992 | 25.23 | 31.21 | a | 36.71 | 42.47 | 48.33 | d | 56.67 | 56.26 | 60.90 | 52.17 | a | 43.66 | b | 31.50 | 22.83 | a | 42.33 | ||||||||
1993 | 19.66 | b | 24.36 | 35.53 | a | 41.30 | 52.23 | 52.36 | b | 53.81 | 56.35 | 51.41 | a | 43.35 | 21.73 | 25.77 | a | 39.82 | ||||||||
1994 | 28.16 | 26.07 | a | 36.61 | 42.10 | 52.48 | 56.83 | 65.52 | 63.16 | 53.23 | 42.68 | 28.60 | 24.00 | 43.29 | ||||||||||||
1995 | 29.06 | 32.38 | b | 36.87 | 38.70 | 49.56 | d | 52.33 | 61.81 | 55.13 | 50.70 | c | 38.48 | j | 36.46 | b | 26.31 | e | 42.67 | a | ||||||
1996 | 27.11 | c | 26.24 | d | 34.62 | b | 37.65 | d | 47.30 | d | 54.89 | b | 62.48 | d | 58.10 | 48.45 | a | 41.35 | 32.50 | 29.07 | c | 41.65 | ||||
1997 | 26.37 | a | 28.64 | ----- | z | 40.00 | b | 51.19 | 57.68 | b | 62.48 | 62.37 | a | 55.97 | a | 41.80 | a | 33.72 | a | 23.24 | b | 43.95 | a | |||
1998 | 30.83 | b | 29.35 | e | 36.07 | c | 41.10 | a | 49.03 | a | ----- | z | ----- | z | 64.06 | 58.00 | c | 42.46 | c | 35.90 | a | 24.29 | 41.11 | b | ||
1999 | 28.42 | 29.72 | c | 33.23 | a | 38.36 | b | 45.47 | a | 55.97 | 61.47 | a | 62.46 | c | 50.55 | a | 41.24 | b | 37.31 | a | 25.97 | 42.51 | ||||
2000 | 25.18 | c | 33.19 | b | 35.41 | b | 44.14 | a | 50.67 | a | 57.43 | 63.29 | c | 62.93 | c | 50.12 | e | ----- | z | 41.48 | e | 27.69 | b | 44.68 | a | |
2001 | 24.10 | 28.67 | a | 38.16 | 39.10 | a | 52.40 | a | 57.46 | d | 64.00 | c | 65.45 | 54.59 | c | 41.86 | b | 36.07 | a | 27.94 | 44.15 | |||||
2002 | 28.53 | a | 26.50 | 32.84 | 42.97 | 48.60 | a | 58.70 | 67.23 | 59.65 | e | 51.96 | b | 38.63 | a | 30.66 | a | 30.74 | 43.08 | |||||||
2003 | 31.80 | a | 29.50 | 38.00 | 42.00 | 50.16 | 59.23 | 68.55 | b | 64.19 | 53.07 | a | 45.48 | b | 29.07 | b | 31.53 | a | 45.22 | |||||||
2004 | 26.19 | 30.39 | a | 38.68 | 44.03 | 49.61 | 58.57 | b | 65.93 | c | 62.55 | 51.07 | a | 43.21 | b | 32.25 | b | 29.53 | a | 44.33 | ||||||
2005 | 26.80 | a | 29.00 | 37.45 | b | 42.37 | 50.90 | a | 55.07 | 64.29 | 63.36 | c | 49.17 | a | 41.83 | a | 30.64 | b | 24.32 | c | 42.93 | |||||
2006 | 32.80 | a | 27.39 | 35.84 | 43.53 | 50.69 | b | 60.77 | 68.33 | a | 58.93 | a | 49.48 | a | 40.70 | a | 34.63 | 25.23 | 44.03 | |||||||
2007 | 21.24 | b | 31.68 | ----- | z | 41.25 | b | 52.06 | 57.29 | b | 70.67 | a | 61.87 | a | 51.07 | b | 40.39 | 31.97 | 26.79 | b | 44.21 | a | ||||
2008 | 24.83 | a | 30.31 | 32.57 | a | 36.17 | 49.32 | 56.96 | c | 65.32 | 62.84 | 50.07 | 41.07 | a | 35.10 | 24.52 | 42.42 | |||||||||
2009 | 25.93 | b | 28.78 | a | 32.83 | a | 40.29 | b | 50.03 | 58.23 | 64.84 | 61.35 | 56.40 | 40.37 | a | 31.97 | a | 20.26 | 42.61 | |||||||
2010 | 31.03 | 34.11 | a | 34.97 | a | 38.76 | a | 44.57 | a | 55.43 | 62.53 | a | 60.96 | g | 51.96 | g | 45.37 | a | 32.00 | 29.41 | b | 40.82 | b | |||
2011 | 25.67 | a | 27.60 | c | 35.96 | c | 38.32 | b | 45.83 | a | 54.66 | a | 62.07 | a | 62.60 | a | 55.03 | a | 44.03 | 31.17 | a | 21.67 | a | 42.05 | ||
2012 | 27.21 | c | 30.27 | c | 36.77 | a | 44.63 | c | 47.50 | a | 54.47 | 67.03 | 64.00 | c | 52.10 | 40.00 | a | 34.07 | 27.93 | a | 43.83 | |||||
2013 | 12.42 | 28.79 | 32.41 | b | 40.14 | a | 49.03 | 56.33 | 68.84 | 66.07 | a | 57.10 | 38.55 | b | 31.23 | 17.84 | 41.56 | |||||||||
2014 | 26.07 | c | 32.58 | b | 37.48 | d | 41.64 | b | 50.17 | a | 57.83 | a | 67.35 | e | 63.58 | 54.03 | 43.61 | 27.14 | a | 30.52 | 44.33 | |||||
2015 | 25.17 | a | 33.71 | 35.67 | a | 38.37 | 49.70 | a | 64.79 | f | 66.52 | b | 63.97 | a | 52.17 | 48.03 | 32.10 | a | 27.79 | b | 43.02 | a | ||||
2016 | 27.10 | a | 32.28 | 39.35 | 44.88 | e | 51.36 | f | 59.14 | b | 64.39 | 62.84 | 52.20 | 47.00 | 37.17 | 17.87 | 44.02 | a | ||||||||
2017 | 16.13 | 30.75 | 40.23 | 41.13 | 48.19 | 58.57 | 68.71 | 65.55 | 53.93 | 38.45 | 36.17 | a | 23.61 | 43.45 | ||||||||||||
2018 | 29.76 | b | 27.18 | 35.29 | 40.97 | 54.97 | 56.89 | b | 66.61 | 63.03 | a | 52.13 | 42.13 | 30.33 | 28.26 | 43.96 | ||||||||||
2019 | 28.32 | 30.00 | 34.16 | 44.17 | 49.87 | 56.30 | 65.10 | 62.81 | 53.67 | 33.29 | 29.90 | 30.74 | 43.19 | |||||||||||||
2020 | 31.32 | 27.41 | 35.23 | a | 40.30 | 49.29 | 56.23 | 63.58 | 64.58 | 53.53 | 41.65 | 30.87 | 23.16 | 43.10 | ||||||||||||
2021 | 28.48 | 27.68 | 33.19 | 40.77 | 50.23 | 62.57 | 71.00 | 63.16 | 52.23 | 45.45 | 36.36 | b | 28.71 | 44.99 | ||||||||||||
2022 | 24.58 | 24.00 | 36.23 | 38.03 | 46.23 | 56.53 | 68.52 | 67.39 | 56.53 | 42.74 | 26.33 | 23.97 | a | 42.59 | ||||||||||||
2023 | 26.97 | 25.82 | 31.58 | 38.00 | 53.26 | 56.83 | 67.65 | 65.52 | 54.67 | 45.35 | 32.77 | 30.71 | 44.09 | |||||||||||||
2024 | 26.39 | 33.97 | 34.71 | 41.00 | o | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 31.69 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 24.76 | 29.17 | 34.50 | 40.60 | 48.80 | 56.23 | 64.11 | 61.56 | 51.96 | 42.00 | 32.41 | 26.10 | 42.61 | |||||||||||||
S.D. | 5.61 | 3.51 | 2.64 | 2.19 | 2.34 | 2.55 | 2.83 | 2.61 | 2.79 | 2.48 | 3.49 | 4.25 | 1.30 | |||||||||||||
SKEW | -1.02 | -0.44 | -0.26 | 0.09 | 0.22 | 0.08 | -0.37 | -0.38 | -0.07 | -0.09 | -0.28 | -1.21 | -0.58 | |||||||||||||
MAX | 36.65 | 35.75 | 40.26 | 45.43 | 54.97 | 62.57 | 71.00 | 67.39 | 58.00 | 48.48 | 41.48 | 32.52 | 45.22 | |||||||||||||
MIN | 5.16 | 17.89 | 28.52 | 36.13 | 44.52 | 50.10 | 53.81 | 53.16 | 46.03 | 33.29 | 21.73 | 10.00 | 38.26 | |||||||||||||
YRS | 89 | 88 | 86 | 87 | 87 | 86 | 88 | 88 | 87 | 87 | 88 | 89 | 75 |