YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.22 | h | 48.70 | 43.40 | a | 38.46 | b | 28.87 | h | 43.52 | i | |
1935 | 23.79 | c | 28.59 | a | 31.79 | l | ----- | z | ----- | z | 55.60 | j | 59.00 | c | 57.97 | 53.03 | a | 39.42 | 29.31 | a | 28.79 | b | 39.99 | d | ||
1936 | 26.42 | 6.85 | b | 31.07 | a | 40.89 | c | 50.81 | 55.37 | 58.97 | 58.28 | f | 50.73 | 42.16 | 26.27 | 29.42 | 38.09 | a | ||||||||
1937 | 5.00 | a | 18.07 | a | 34.35 | 40.00 | 47.03 | 54.00 | 61.19 | 56.11 | c | 52.27 | 44.62 | b | 35.69 | a | 29.68 | i | 40.76 | a | ||||||
1938 | 28.41 | b | 29.15 | b | 33.71 | 40.66 | a | 46.77 | a | 55.90 | 62.79 | c | 56.37 | d | 55.21 | a | 44.06 | 29.69 | a | 25.61 | 42.36 | |||||
1939 | 29.79 | g | 23.04 | b | 33.38 | e | 41.07 | b | 48.97 | 52.83 | a | 59.90 | a | 59.36 | c | 52.71 | b | 41.38 | b | 33.55 | a | 33.32 | c | 43.59 | a | |
1940 | 25.50 | e | 29.63 | b | 36.33 | a | 42.67 | 49.39 | 54.79 | a | 60.10 | 58.07 | a | 55.93 | c | 47.57 | a | 29.63 | c | 27.74 | d | 43.11 | ||||
1941 | 29.61 | c | 30.30 | a | 35.73 | a | 43.21 | a | 48.94 | 54.55 | a | 60.03 | 59.00 | 49.69 | a | 42.33 | a | 34.58 | d | 30.24 | f | 44.36 | a | |||
1942 | 21.74 | d | 29.54 | b | 30.80 | a | 39.83 | a | 45.42 | 50.52 | a | 56.13 | a | 58.83 | a | 51.28 | a | 39.39 | 29.77 | 24.94 | 39.85 | |||||
1943 | 12.65 | ----- | z | 28.57 | a | 40.60 | 42.58 | 49.60 | 57.58 | 55.35 | 50.97 | 42.26 | 33.37 | 24.06 | 39.78 | a | ||||||||||
1944 | 21.26 | 25.03 | 28.90 | 38.43 | 46.32 | 53.03 | 59.03 | 55.81 | 50.63 | 43.52 | 33.30 | 23.19 | 39.87 | |||||||||||||
1945 | 26.61 | 29.04 | 31.71 | 34.93 | 46.26 | 50.07 | 56.68 | 55.19 | 47.17 | 41.13 | 29.80 | 26.47 | a | 39.59 | ||||||||||||
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | 18.81 | 25.93 | 33.03 | 38.57 | 50.16 | 52.17 | 56.52 | 54.26 | 50.27 | 43.23 | 31.50 | 27.81 | 40.19 | |||||||||||||
1948 | 22.35 | 23.28 | 29.84 | 36.13 | 45.61 | 55.83 | 53.90 | 54.73 | a | 48.07 | 37.87 | 30.41 | a | 15.61 | 37.80 | |||||||||||
1949 | 3.26 | 16.00 | 31.29 | 39.07 | a | 48.65 | 50.37 | 55.97 | 55.32 | 51.20 | 36.68 | 36.63 | 22.13 | 37.21 | ||||||||||||
1950 | 1.03 | 22.11 | 30.45 | 35.30 | 42.90 | 51.73 | 57.29 | ----- | z | 56.10 | 39.39 | 31.20 | 28.97 | 36.04 | a | |||||||||||
1951 | 22.74 | 24.50 | 26.26 | 36.30 | 43.55 | 50.83 | 54.23 | 55.81 | 48.34 | a | 40.87 | 31.30 | 18.19 | 37.74 | ||||||||||||
1952 | 16.68 | 24.83 | 30.55 | 39.27 | 46.77 | 52.23 | 58.42 | 57.58 | 53.17 | 43.06 | 28.30 | 27.68 | 39.88 | |||||||||||||
1953 | 31.32 | 29.14 | 32.35 | 37.63 | 43.77 | 47.93 | 56.35 | 56.13 | 50.40 | 42.03 | 34.30 | 29.23 | 40.88 | |||||||||||||
1954 | 19.16 | 30.43 | 27.23 | 34.90 | 45.45 | 48.63 | 54.68 | 53.71 | 49.43 | 37.39 | 37.90 | 25.87 | 38.73 | |||||||||||||
1955 | 23.45 | 20.96 | 24.68 | 34.33 | 42.32 | 52.63 | 55.55 | 55.52 | 49.87 | 40.65 | 23.03 | 20.45 | 36.95 | |||||||||||||
1956 | 23.58 | 15.52 | 28.45 | 38.83 | 47.68 | 50.13 | 59.48 | 56.71 | 49.73 | 40.42 | 28.97 | 25.52 | 38.75 | |||||||||||||
1957 | 6.81 | 18.93 | a | 32.29 | 39.60 | 50.35 | 53.33 | 55.90 | 53.84 | 52.47 | 39.90 | 30.77 | 30.74 | 38.74 | ||||||||||||
1958 | 29.84 | 34.93 | 32.26 | 38.17 | 51.35 | 57.27 | 61.45 | 61.52 | 49.07 | 40.77 | 28.87 | 28.16 | 42.80 | |||||||||||||
1959 | 24.03 | 23.43 | 31.97 | 38.53 | 41.87 | 51.07 | 56.42 | 53.45 | 48.30 | 38.97 | 26.37 | 25.84 | 38.35 | |||||||||||||
1960 | 16.81 | 25.48 | 29.55 | 36.67 | 42.84 | 51.00 | 59.68 | 54.71 | 48.50 | 41.29 | 31.13 | 23.32 | 38.41 | |||||||||||||
1961 | 26.32 | 32.39 | 32.58 | 37.00 | 45.97 | 54.60 | 59.71 | 60.42 | 47.27 | 38.68 | 25.80 | 22.65 | 40.28 | |||||||||||||
1962 | 17.87 | 26.86 | 28.35 | 38.87 | 43.10 | 49.80 | 56.77 | 54.94 | 50.10 | 42.06 | 35.37 | 30.48 | 39.55 | |||||||||||||
1963 | 16.97 | 29.50 | 32.55 | 38.30 | 45.03 | 52.73 | 56.35 | 57.61 | 53.87 | 43.39 | 33.57 | 24.00 | 40.32 | |||||||||||||
1964 | 25.55 | 25.07 | 28.68 | 35.70 | 44.55 | 52.00 | 57.10 | 53.74 | 47.03 | 39.29 | 31.59 | a | 18.81 | 38.26 | ||||||||||||
1965 | 24.32 | 25.21 | 26.42 | 39.33 | 43.16 | 51.73 | 57.71 | 58.84 | 46.87 | 42.71 | 35.07 | 26.29 | 39.81 | |||||||||||||
1966 | 22.94 | 26.82 | 30.71 | 38.27 | 45.52 | 49.63 | 56.61 | 56.97 | 53.20 | 40.71 | 34.37 | 30.19 | 40.49 | |||||||||||||
1967 | 29.48 | 30.25 | 31.03 | 34.73 | 43.77 | 53.43 | 57.81 | 60.19 | 54.03 | 42.03 | 32.80 | 24.77 | 41.20 | |||||||||||||
1968 | 24.87 | 29.45 | 34.84 | 36.23 | 46.74 | 53.24 | a | 60.84 | 56.55 | 51.40 | 39.81 | 33.67 | 22.35 | 40.83 | ||||||||||||
1969 | 10.16 | 21.75 | 30.23 | 40.27 | 48.26 | 58.00 | 56.32 | 56.87 | 51.73 | 38.48 | 33.10 | 28.39 | 39.46 | |||||||||||||
1970 | 21.00 | 28.54 | 31.10 | 35.93 | 46.19 | 57.70 | 61.94 | 58.42 | 44.20 | 38.03 | 29.00 | 22.35 | 39.53 | |||||||||||||
1971 | 22.84 | 27.25 | 27.94 | 37.70 | 47.42 | 50.43 | 58.68 | 62.23 | 46.83 | 38.57 | a | 32.63 | 18.29 | 39.23 | ||||||||||||
1972 | 16.23 | 24.24 | 33.16 | 34.47 | 48.26 | 53.63 | 56.71 | 59.45 | 47.17 | 38.23 | 34.47 | 20.94 | 38.91 | |||||||||||||
1973 | 19.61 | 25.96 | 33.29 | 38.50 | 46.35 | 52.63 | 60.39 | 57.81 | 50.93 | 41.16 | 30.83 | 30.71 | 40.68 | |||||||||||||
1974 | 20.52 | 30.86 | 33.23 | 40.77 | 42.87 | 55.47 | 57.19 | 58.74 | 51.47 | 39.74 | 34.00 | 28.87 | a | 41.14 | ||||||||||||
1975 | 19.06 | 19.07 | 28.81 | 35.70 | 44.68 | 51.60 | 62.23 | 54.94 | 49.30 | 40.90 | 30.13 | 24.84 | 38.44 | |||||||||||||
1976 | 24.06 | 27.41 | 28.90 | 37.83 | 44.39 | 49.73 | 57.19 | 54.13 | 51.87 | 38.45 | 30.23 | 25.35 | 39.13 | |||||||||||||
1977 | 16.48 | 28.00 | 30.65 | 40.07 | 44.32 | 56.00 | a | 58.06 | 61.13 | 48.83 | 38.19 | 28.77 | 21.90 | 39.37 | ||||||||||||
1978 | 21.65 | 27.82 | 34.39 | 39.97 | 45.00 | b | 53.13 | 58.97 | a | 56.77 | 47.83 | a | 38.61 | 26.47 | 15.74 | 38.86 | ||||||||||
1979 | 6.94 | 23.68 | 32.23 | 36.20 | 46.29 | 53.77 | 60.45 | 59.39 | 52.80 | 43.96 | c | 28.87 | 29.52 | 39.51 | ||||||||||||
1980 | 13.87 | 26.97 | 30.71 | 41.33 | 47.79 | b | 50.23 | 57.77 | 54.45 | 49.60 | 41.29 | 34.50 | 28.07 | b | 39.72 | |||||||||||
1981 | 30.16 | 28.86 | 33.87 | 36.79 | a | 46.13 | 48.87 | 56.16 | 59.74 | 47.73 | 39.29 | 33.67 | 25.13 | 40.53 | ||||||||||||
1982 | 19.32 | 26.71 | 31.71 | 33.23 | 43.20 | a | 55.93 | 56.40 | a | 57.77 | 49.69 | a | 40.00 | 27.13 | 23.97 | a | 38.76 | |||||||||
1983 | 28.84 | 32.07 | 36.16 | 35.37 | 45.97 | 52.62 | d | 52.06 | 57.68 | c | 47.83 | 38.74 | d | 36.50 | 14.34 | b | 39.85 | |||||||||
1984 | 24.00 | b | 28.45 | 34.29 | 36.34 | a | 41.71 | 49.87 | 57.10 | a | 57.39 | 46.70 | 35.61 | 32.20 | 14.43 | a | 38.17 | |||||||||
1985 | 17.42 | 17.56 | a | 26.29 | 38.57 | 47.71 | 52.70 | 64.47 | a | 56.83 | a | 46.38 | a | 37.84 | 15.63 | 15.06 | 36.37 | |||||||||
1986 | 22.39 | 22.44 | a | 34.84 | 36.87 | 45.47 | a | 57.17 | 54.67 | a | 61.35 | 45.10 | 40.06 | 33.86 | a | 26.33 | a | 40.05 | ||||||||
1987 | 24.07 | a | 31.29 | 33.87 | 41.93 | 47.90 | 55.70 | ----- | z | ----- | z | 53.38 | a | 41.58 | 35.19 | c | 24.93 | b | 38.98 | b | ||||||
1988 | 20.79 | c | 26.68 | a | 33.83 | a | 42.24 | a | 45.27 | a | 52.57 | 59.42 | 58.68 | 50.93 | 43.30 | a | 34.33 | 24.70 | a | 41.06 | ||||||
1989 | 24.70 | a | 17.75 | 30.77 | 40.07 | 45.48 | 56.46 | b | 58.39 | 57.67 | a | 51.43 | 41.23 | a | 34.80 | 27.61 | 40.53 | |||||||||
1990 | 29.97 | 23.96 | a | 33.23 | 42.59 | a | 46.48 | 52.33 | 62.26 | 60.70 | a | 54.03 | 39.86 | c | 34.63 | 17.83 | a | 41.49 | ||||||||
1991 | 17.81 | 31.93 | 30.65 | 37.75 | b | 46.23 | 50.28 | a | 59.06 | 61.06 | 52.80 | 38.90 | b | 31.90 | a | 28.52 | b | 40.57 | ||||||||
1992 | 27.86 | c | 33.79 | 35.97 | a | 41.90 | a | 48.39 | 59.17 | 59.32 | 59.39 | 49.47 | 42.00 | 32.39 | b | 17.80 | a | 42.29 | ||||||||
1993 | 13.84 | 19.79 | 30.68 | 38.67 | ----- | z | 52.13 | 54.60 | a | 56.68 | 50.21 | a | 43.84 | 25.53 | 27.97 | a | 37.63 | a | ||||||||
1994 | 30.00 | 26.63 | a | 33.32 | 42.76 | a | 47.60 | a | 50.68 | b | 62.17 | b | 59.07 | a | 53.55 | a | 40.40 | a | 28.97 | a | 26.52 | 41.81 | ||||
1995 | 24.77 | 29.79 | 32.17 | b | 38.73 | 48.52 | 52.86 | a | 60.32 | 54.35 | 52.47 | 39.68 | 33.13 | 26.10 | a | 41.07 | ||||||||||
1996 | 20.10 | b | 20.93 | 31.00 | 38.79 | a | 42.34 | b | 51.21 | a | 60.29 | 58.23 | a | 47.63 | 40.70 | a | 27.43 | 18.81 | 38.12 | |||||||
1997 | 20.37 | a | 22.18 | 32.00 | 36.87 | 48.10 | 51.60 | 57.53 | a | 60.60 | a | 52.07 | 40.63 | a | 31.87 | 26.16 | 40.00 | |||||||||
1998 | ----- | z | 31.82 | 34.61 | 39.23 | 47.68 | ----- | z | 63.65 | 60.90 | 54.30 | 40.68 | 37.17 | a | 24.87 | 43.49 | b | |||||||||
1999 | 29.23 | a | 29.46 | 32.37 | a | 34.27 | 42.45 | 50.83 | 55.52 | 60.63 | a | 48.63 | 39.90 | 37.03 | 29.81 | 40.85 | ||||||||||
2000 | 23.68 | 23.78 | b | 30.58 | 40.37 | 44.68 | 52.85 | c | 55.97 | b | 56.58 | 48.61 | b | 39.93 | b | 27.21 | b | 20.43 | c | 38.72 | ||||||
2001 | 20.58 | 19.71 | 29.84 | 36.63 | 46.16 | 46.28 | a | 55.16 | 56.73 | a | 48.47 | 37.97 | b | 32.80 | 26.74 | 38.09 | ||||||||||
2002 | 26.90 | a | 26.78 | a | 23.80 | a | 36.83 | 41.73 | a | 51.57 | 57.60 | a | 52.13 | a | 47.13 | 33.00 | a | 31.93 | 29.27 | a | 38.22 | |||||
2003 | 28.97 | 26.00 | 30.50 | a | 38.90 | 44.50 | a | 54.48 | a | 60.58 | 55.19 | 52.53 | 43.87 | 26.23 | 24.38 | b | 40.51 | |||||||||
2004 | 22.68 | f | 25.71 | a | 34.00 | b | 39.04 | d | 44.10 | a | 52.60 | 60.23 | 60.52 | 47.62 | a | 40.13 | a | 31.21 | a | 28.28 | b | 42.13 | a | |||
2005 | 21.37 | a | 24.32 | 32.68 | 38.23 | 47.58 | 51.24 | a | 56.55 | k | 57.77 | 51.33 | 44.39 | 30.28 | e | 19.42 | 38.06 | a | ||||||||
2006 | 30.10 | 25.04 | 31.23 | a | 39.40 | 44.35 | 49.50 | 59.16 | 56.16 | 50.53 | 38.84 | 29.27 | 22.52 | 39.67 | ||||||||||||
2007 | 19.97 | 28.89 | 33.55 | 36.93 | 44.55 | 52.00 | b | 62.43 | a | 57.68 | 49.63 | 38.45 | 29.30 | 23.00 | 39.70 | |||||||||||
2008 | 16.84 | 24.93 | 30.32 | 32.37 | 47.03 | b | 49.59 | a | 59.10 | a | 58.10 | 49.17 | 40.48 | 32.67 | 17.17 | a | 38.15 | |||||||||
2009 | 17.65 | 21.61 | 28.48 | 35.33 | 44.10 | 53.48 | a | 60.23 | 58.58 | 51.77 | 37.50 | a | 32.77 | 19.23 | 38.39 | |||||||||||
2010 | 28.62 | b | 32.19 | a | 32.77 | 38.38 | a | 41.77 | 50.67 | 57.58 | 55.48 | 50.53 | 42.55 | 28.70 | 25.90 | 40.43 | ||||||||||
2011 | 26.32 | 21.86 | 32.90 | 34.30 | 42.68 | 49.83 | 53.74 | 57.77 | 51.55 | a | 40.39 | 28.53 | 22.39 | 38.52 | ||||||||||||
2012 | 20.55 | 26.07 | 31.13 | 37.87 | 44.35 | 50.53 | 59.26 | 58.97 | 50.83 | a | 40.97 | a | 35.40 | 28.61 | 40.38 | |||||||||||
2013 | 21.13 | 26.32 | 31.71 | 37.50 | 46.74 | 52.97 | 61.58 | 60.10 | 53.20 | 37.45 | 29.87 | 19.84 | 39.87 | |||||||||||||
2014 | 25.55 | 20.39 | 31.94 | 38.27 | 46.29 | 53.57 | 62.61 | 60.84 | 52.20 | 45.77 | 28.77 | 26.87 | 41.09 | |||||||||||||
2015 | 26.48 | 32.18 | 36.00 | 37.07 | 49.67 | a | 59.47 | 63.03 | 60.26 | 49.53 | 45.39 | 29.83 | 26.03 | 42.91 | ||||||||||||
2016 | 26.03 | 29.86 | 34.94 | 43.30 | 49.48 | 53.67 | 58.55 | 59.13 | 48.20 | 42.61 | 38.77 | 17.42 | 41.83 | |||||||||||||
2017 | 15.39 | 20.29 | 33.10 | 37.97 | 46.30 | a | 53.17 | 60.45 | 60.77 | 52.07 | 37.71 | 32.97 | 22.65 | 39.40 | ||||||||||||
2018 | 26.48 | 22.96 | 30.84 | 38.27 | 50.94 | 51.60 | 61.10 | 58.81 | 48.80 | 39.61 | 31.07 | 27.71 | 40.68 | |||||||||||||
2019 | 25.58 | 15.75 | 24.13 | 39.80 | 49.26 | 53.67 | 58.10 | 60.45 | 51.90 | 35.77 | 29.93 | 27.65 | 39.33 | |||||||||||||
2020 | 26.81 | 26.52 | 30.03 | 37.57 | 46.58 | 52.13 | 59.16 | 59.87 | 52.77 | 39.90 | 30.90 | 26.32 | 40.71 | |||||||||||||
2021 | 28.77 | 23.82 | 30.42 | 37.87 | 44.65 | 58.87 | 64.68 | 60.55 | 51.50 | 40.48 | 33.44 | c | 21.90 | 41.41 | ||||||||||||
2022 | 20.93 | a | 20.32 | 33.42 | 34.47 | 41.77 | 52.38 | a | 60.71 | 62.71 | c | 53.73 | 45.03 | a | 23.83 | a | 15.48 | 38.73 | ||||||||
2023 | 26.58 | 24.14 | 28.87 | a | 36.33 | 52.17 | a | 54.87 | 60.87 | 60.48 | b | 51.97 | a | 41.10 | a | 31.64 | b | 30.71 | 41.64 | |||||||
2024 | 22.29 | 31.07 | b | 31.48 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.28 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.87 | 25.50 | 31.42 | 38.15 | 45.97 | 52.67 | 58.62 | 57.80 | 50.44 | 40.58 | 31.35 | 24.40 | 39.81 | |||||||||||||
S.D. | 6.32 | 4.82 | 2.65 | 2.38 | 2.50 | 2.60 | 2.60 | 2.38 | 2.45 | 2.43 | 3.67 | 4.45 | 1.41 | |||||||||||||
SKEW | -1.12 | -0.80 | -0.61 | 0.05 | 0.24 | 0.51 | 0.06 | -0.15 | -0.04 | 0.08 | -0.87 | -0.54 | 0.12 | |||||||||||||
MAX | 31.32 | 34.93 | 36.33 | 43.30 | 52.17 | 59.47 | 64.68 | 62.71 | 56.10 | 47.57 | 38.77 | 33.32 | 43.11 | |||||||||||||
MIN | 1.03 | 6.85 | 23.80 | 32.37 | 41.71 | 46.28 | 52.06 | 52.13 | 44.20 | 33.00 | 15.63 | 14.34 | 36.37 | |||||||||||||
YRS | 86 | 88 | 88 | 87 | 86 | 86 | 86 | 85 | 89 | 89 | 89 | 86 | 76 |