YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.30 | k | 26.70 | 30.16 | 28.43 | j | ||
1939 | 28.97 | 25.43 | 35.29 | 43.20 | 47.42 | 55.20 | e | 65.48 | 63.83 | a | 58.27 | 40.00 | b | 34.13 | 27.56 | f | 45.20 | a | ||||||||
1940 | 30.42 | 32.76 | 37.48 | 44.10 | 50.26 | 59.73 | 63.84 | 63.29 | 57.04 | d | 44.97 | 30.40 | 30.94 | 45.44 | ||||||||||||
1941 | 31.00 | 35.85 | a | 35.03 | b | 37.67 | 48.35 | 52.00 | j | 61.84 | 61.32 | 50.47 | k | 41.83 | h | 32.37 | 29.23 | 41.41 | c | |||||||
1942 | 25.74 | 25.11 | 30.39 | 39.26 | c | 42.39 | 51.37 | 64.16 | 61.90 | 53.40 | 43.94 | 33.63 | 27.65 | 41.58 | ||||||||||||
1943 | 27.74 | 31.29 | 37.35 | 41.17 | 47.26 | 54.30 | 62.42 | 64.00 | a | 53.22 | g | 41.00 | 29.03 | 30.03 | 42.33 | a | ||||||||||
1944 | 26.32 | 30.79 | 32.03 | 38.41 | a | 45.58 | 48.93 | 58.13 | 60.13 | 56.71 | b | 46.97 | 35.05 | i | 25.87 | 42.72 | a | |||||||||
1945 | 26.94 | 31.39 | 31.68 | 37.10 | 43.97 | 49.48 | a | 64.90 | 65.58 | 52.53 | 43.84 | 25.63 | 21.81 | j | 43.00 | a | ||||||||||
1946 | 25.16 | 20.86 | 29.74 | 40.73 | 42.58 | 49.77 | 60.41 | d | 60.77 | 52.43 | 37.13 | 26.73 | 27.77 | 39.51 | ||||||||||||
1947 | 22.55 | 29.39 | 32.94 | 38.33 | 48.55 | 53.33 | 61.20 | a | 62.94 | 57.53 | 43.74 | 29.83 | 24.35 | 42.06 | ||||||||||||
1948 | 22.10 | 28.21 | 29.07 | c | 39.77 | 44.55 | 52.87 | 61.48 | b | 62.40 | a | 53.93 | 43.53 | a | 24.39 | b | 26.39 | 40.72 | ||||||||
1949 | 23.77 | 24.18 | 31.40 | a | 40.11 | b | 46.17 | b | 55.03 | 63.58 | 60.09 | i | 57.07 | 40.50 | a | 32.03 | 22.32 | 39.65 | a | |||||||
1950 | 21.93 | a | 29.14 | 32.16 | 38.53 | 41.06 | 50.73 | 62.87 | 56.65 | 49.57 | 41.94 | 29.46 | b | 27.06 | o | 41.28 | a | |||||||||
1951 | 27.52 | j | 29.43 | 31.97 | 39.83 | 45.69 | b | 45.39 | b | 64.07 | a | 59.80 | a | 51.17 | a | 40.45 | 33.38 | a | 27.61 | 42.62 | a | |||||
1952 | 27.32 | 26.71 | a | 31.06 | 41.13 | 45.83 | b | 52.04 | b | 60.68 | 62.89 | c | 54.54 | f | 42.64 | c | 29.71 | b | 28.06 | m | 42.00 | b | ||||
1953 | 28.32 | c | 25.50 | 33.58 | 38.21 | a | 41.45 | b | 51.93 | 64.47 | a | 58.68 | 49.83 | a | 39.41 | b | 32.07 | a | 19.79 | c | 40.27 | |||||
1954 | 25.83 | a | 30.00 | 33.57 | a | 41.17 | 47.03 | 54.14 | h | 64.30 | h | 59.70 | a | 54.24 | a | 42.61 | 32.74 | c | 23.95 | j | 40.77 | c | ||||
1955 | 26.42 | 23.00 | a | 29.87 | h | 35.77 | 44.55 | 53.24 | a | 59.97 | 64.03 | 51.76 | a | 43.74 | 31.50 | 27.33 | a | 41.94 | a | |||||||
1956 | 29.52 | 23.52 | 30.35 | 39.82 | b | 47.94 | 57.31 | d | 63.26 | d | 57.77 | 55.54 | d | 39.97 | a | 22.30 | c | 20.73 | a | 40.67 | ||||||
1957 | 32.41 | i | 36.46 | 36.29 | 38.79 | a | 44.00 | f | 57.26 | k | 64.20 | a | 62.19 | 50.32 | b | 45.57 | a | 31.07 | b | 24.85 | d | 43.31 | c | |||
1958 | 23.03 | 32.64 | 33.35 | 37.39 | b | 49.19 | 55.34 | a | 63.00 | 65.37 | a | 56.37 | 45.35 | 31.79 | a | 23.83 | a | 43.06 | ||||||||
1959 | 23.76 | b | 27.69 | b | 30.32 | 41.70 | c | 45.84 | 57.90 | 64.71 | 64.03 | 53.80 | 42.87 | a | 31.43 | 30.77 | 42.90 | |||||||||
1960 | 22.71 | 25.48 | b | 35.65 | 39.00 | a | 46.19 | 56.57 | 62.61 | 62.94 | 56.63 | 43.81 | 31.03 | 24.10 | 42.23 | |||||||||||
1961 | 24.48 | 29.64 | 33.58 | 40.72 | a | 46.58 | 56.93 | 64.48 | 64.71 | 53.10 | 41.32 | 30.69 | a | 26.45 | 42.73 | |||||||||||
1962 | 25.10 | 32.75 | 28.90 | 42.73 | 45.00 | 51.83 | 61.35 | 61.32 | 56.80 | 43.65 | 34.73 | 28.03 | 42.68 | |||||||||||||
1963 | 21.84 | 31.93 | 33.00 | a | 38.50 | 47.38 | b | 52.33 | 65.61 | 64.35 | 56.70 | 47.71 | 35.83 | 21.62 | b | 43.07 | ||||||||||
1964 | 18.83 | a | 20.28 | 29.45 | 39.30 | 45.81 | 52.67 | 65.84 | 62.65 | 56.10 | 46.32 | 29.27 | 25.74 | 41.02 | ||||||||||||
1965 | 29.10 | 27.82 | 32.19 | 38.80 | 43.29 | 48.13 | 63.81 | 60.48 | 50.93 | 41.55 | 37.30 | 30.03 | 41.95 | |||||||||||||
1966 | 22.42 | 24.43 | 32.23 | 39.90 | 48.00 | 53.77 | 63.03 | 62.74 | 57.03 | 40.74 | 33.03 | 25.65 | 41.91 | |||||||||||||
1967 | 23.26 | 26.57 | 35.00 | 38.03 | 45.03 | 53.50 | 65.87 | 62.74 | 56.67 | 42.94 | 35.23 | 21.48 | 42.19 | |||||||||||||
1968 | 24.26 | 35.34 | 34.81 | 37.17 | 45.26 | 54.17 | 61.29 | 58.87 | 51.70 | 42.26 | 33.37 | 22.29 | 41.73 | |||||||||||||
1969 | 34.19 | 30.04 | 29.61 | 39.63 | 46.81 | 53.97 | 64.87 | a | 66.13 | 56.23 | 41.52 | 34.00 | 28.58 | 43.80 | ||||||||||||
1970 | 23.32 | 30.43 | 33.29 | 34.73 | 45.84 | 54.00 | a | 65.58 | 66.13 | 51.53 | 38.52 | 30.20 | 25.48 | 41.59 | ||||||||||||
1971 | 22.06 | 25.89 | 31.77 | a | 34.47 | 43.16 | 52.00 | 61.74 | 63.74 | 52.83 | 38.81 | 30.73 | 26.35 | 40.30 | ||||||||||||
1972 | 21.35 | 26.24 | 35.97 | 37.97 | 45.29 | 56.20 | 63.97 | 61.97 | 52.93 | 48.19 | 30.90 | 25.71 | 42.22 | |||||||||||||
1973 | 25.06 | 32.14 | 33.42 | 33.87 | 45.58 | 52.70 | 61.65 | 60.90 | 48.73 | 37.87 | 30.90 | 23.00 | a | 40.49 | ||||||||||||
1974 | 25.77 | 21.93 | a | 36.03 | 35.03 | a | 45.60 | a | 54.86 | a | 63.10 | 58.67 | a | 54.00 | a | 45.74 | 30.90 | 22.52 | 41.18 | |||||||
1975 | 21.61 | 26.14 | 30.26 | 31.69 | a | 42.23 | 51.30 | 64.39 | 58.81 | 55.90 | 39.52 | 28.70 | 26.19 | 39.73 | ||||||||||||
1976 | 22.61 | 32.33 | b | 33.29 | 38.03 | 48.94 | 51.90 | 64.37 | a | 58.77 | a | 55.47 | 41.71 | 29.80 | 21.19 | 41.53 | ||||||||||
1977 | 24.57 | a | 26.71 | 28.33 | d | 39.63 | 43.58 | 55.97 | a | 66.00 | a | 64.39 | 57.13 | 46.16 | 32.72 | a | 30.26 | 42.95 | ||||||||
1978 | 32.45 | 33.41 | a | 39.87 | 38.73 | 44.11 | c | 54.83 | a | 63.81 | 61.11 | c | 55.33 | 46.60 | a | 36.90 | 24.71 | 44.32 | ||||||||
1979 | 25.73 | a | 26.65 | b | 34.45 | 38.27 | 46.48 | 53.52 | a | 60.74 | 59.31 | e | 55.07 | 42.71 | 27.10 | 23.68 | 41.14 | |||||||||
1980 | 33.26 | 33.57 | a | 35.42 | 38.80 | 44.65 | 50.80 | 64.48 | 62.06 | 53.38 | a | 40.55 | b | 28.48 | a | 29.71 | 42.93 | |||||||||
1981 | 29.23 | 27.71 | 34.13 | 42.21 | a | 47.61 | 58.07 | 66.61 | 62.10 | a | 55.00 | 41.10 | 31.73 | 27.06 | 43.55 | |||||||||||
1982 | 27.20 | a | 32.54 | 36.50 | a | 38.77 | 46.87 | a | 50.33 | 62.47 | a | 64.81 | 57.13 | 36.55 | 34.69 | a | 28.16 | 43.00 | ||||||||
1983 | 25.87 | 31.89 | 36.52 | 35.77 | 44.65 | 51.67 | 64.26 | 63.71 | 59.33 | 46.35 | 35.27 | 31.39 | 43.89 | |||||||||||||
1984 | 26.26 | 23.62 | 32.19 | 38.47 | 48.61 | 53.87 | 64.28 | b | 61.63 | a | 56.73 | 40.58 | 30.62 | a | 30.73 | a | 42.30 | |||||||||
1985 | 26.90 | 28.18 | 36.35 | 43.87 | 48.97 | 57.47 | 65.57 | a | 63.32 | 51.90 | 47.06 | 35.34 | a | 27.50 | a | 44.37 | ||||||||||
1986 | 28.84 | 35.57 | 37.97 | a | 42.87 | 46.83 | a | 57.34 | a | 61.93 | a | 65.00 | 52.80 | 41.50 | a | 33.23 | 27.86 | c | 44.31 | |||||||
1987 | 23.50 | a | 30.81 | a | 31.65 | 42.70 | 48.33 | a | 55.21 | a | 58.23 | 62.34 | b | 52.26 | c | 47.69 | b | 33.90 | a | 25.61 | c | 42.69 | ||||
1988 | 25.76 | b | 30.22 | b | 32.65 | 40.93 | 45.84 | 57.25 | b | 64.33 | a | 63.43 | a | 51.23 | 47.87 | 32.59 | a | 23.90 | 43.00 | |||||||
1989 | 25.03 | a | 29.07 | 36.41 | b | 43.73 | 49.10 | 54.63 | 64.16 | 60.71 | 53.73 | 43.55 | 31.40 | 21.81 | 42.78 | |||||||||||
1990 | 26.47 | a | 28.48 | a | 36.90 | 44.10 | a | 44.84 | 55.40 | 65.37 | a | 61.00 | a | 59.73 | 42.42 | g | 31.47 | 21.57 | a | 43.21 | a | |||||
1991 | 24.93 | b | 29.81 | a | 33.70 | a | 38.57 | 45.87 | a | 51.75 | b | 65.06 | 63.77 | a | 57.27 | 45.23 | 33.17 | a | 30.28 | b | 43.28 | |||||
1992 | 25.68 | 33.76 | 37.90 | 43.07 | 51.35 | 52.53 | 61.39 | 63.10 | 53.63 | 43.61 | 27.63 | 25.48 | 43.26 | |||||||||||||
1993 | 32.23 | a | 33.86 | 37.83 | a | 40.90 | a | 49.26 | 53.37 | 61.65 | 62.19 | 51.77 | 44.80 | a | 29.69 | a | 22.67 | d | 43.35 | |||||||
1994 | 23.40 | a | 26.41 | a | 37.13 | 42.07 | a | 47.19 | 57.30 | 63.67 | a | 65.87 | 56.57 | 41.55 | 29.48 | c | 29.93 | d | 43.38 | |||||||
1995 | 31.03 | 34.38 | b | 37.10 | 39.43 | 47.00 | 53.20 | 60.40 | a | 65.94 | 57.80 | 41.00 | a | 36.04 | e | 29.35 | n | 45.76 | a | |||||||
1996 | 23.44 | f | 35.07 | 35.42 | 41.33 | 49.71 | 56.30 | 67.03 | 65.23 | 56.23 | 43.10 | a | 33.31 | a | 27.03 | a | 46.34 | a | ||||||||
1997 | 29.13 | 28.37 | a | 35.61 | 40.90 | 51.23 | 53.37 | 60.58 | 64.07 | a | 59.30 | c | 40.97 | 32.38 | a | 24.21 | b | 43.34 | ||||||||
1998 | 28.35 | 29.52 | a | 35.55 | 36.27 | 45.00 | 50.41 | a | 64.20 | a | 64.17 | a | 57.03 | 41.81 | 31.14 | a | 25.60 | a | 42.42 | |||||||
1999 | 24.71 | 28.96 | a | 34.27 | a | 38.48 | a | 47.27 | a | 55.97 | a | 64.50 | a | 63.20 | a | 54.91 | g | 40.71 | 31.75 | b | 22.77 | a | 41.14 | a | ||
2000 | 26.41 | b | 31.72 | d | 35.74 | 42.27 | 49.03 | b | 58.69 | a | 62.61 | 62.47 | a | 55.53 | 44.63 | a | 27.81 | d | 25.15 | e | 43.51 | |||||
2001 | 26.12 | e | 27.70 | h | 36.85 | d | 42.17 | a | 51.26 | 56.60 | 65.40 | a | 64.03 | 55.53 | 46.97 | a | 37.32 | h | 23.70 | k | 49.44 | c | ||||
2002 | 24.65 | h | 25.80 | h | 31.77 | e | 44.07 | a | 47.39 | 56.33 | 67.63 | a | 63.00 | 57.17 | 44.63 | a | 33.25 | b | 26.46 | g | 49.47 | c | ||||
2003 | 30.22 | d | 32.68 | i | 36.19 | e | 39.57 | b | 49.03 | b | 55.73 | 67.45 | 66.68 | 57.63 | 48.00 | a | 33.68 | e | 25.70 | h | 48.42 | b | ||||
2004 | 25.67 | m | 29.15 | b | 40.64 | f | 42.00 | f | 49.00 | a | 54.77 | 62.39 | 61.58 | 54.66 | a | ----- | z | 34.85 | d | 28.21 | g | 49.48 | e | |||
2005 | 34.30 | h | 36.61 | e | 36.69 | e | 39.33 | c | 50.19 | 54.67 | 62.45 | i | 62.38 | w | 54.45 | a | 45.90 | 32.08 | d | 24.04 | f | 43.74 | d | |||
2006 | 22.90 | j | 25.71 | d | 33.69 | b | 41.31 | d | 51.16 | 60.63 | 68.87 | a | 64.57 | a | 54.17 | a | 43.07 | a | 32.38 | d | 23.42 | g | 47.56 | b | ||
2007 | 23.10 | k | 31.52 | g | 37.72 | b | 42.08 | d | 50.39 | 55.48 | a | 66.90 | 59.35 | h | 55.09 | h | 44.03 | 35.70 | c | 26.57 | a | 44.86 | d | |||
2008 | 26.87 | a | 31.07 | 34.32 | 38.93 | 46.59 | b | 55.20 | 66.77 | 65.10 | 55.57 | 42.27 | a | 35.30 | 30.00 | b | 44.00 | |||||||||
2009 | 29.26 | 30.14 | 34.03 | a | 40.64 | b | 52.55 | 55.00 | a | 66.26 | 62.66 | b | 55.96 | b | 41.97 | 32.17 | 27.07 | a | 43.98 | |||||||
2010 | 28.03 | 32.68 | 35.48 | 40.03 | 45.55 | 54.45 | a | 67.65 | 64.71 | 54.20 | 47.40 | a | 30.23 | 32.71 | 44.43 | |||||||||||
2011 | 24.81 | 25.89 | 35.48 | 43.47 | 45.90 | 51.52 | a | 65.00 | a | 65.30 | a | 56.17 | 42.53 | a | 30.90 | a | 26.10 | a | 42.76 | |||||||
2012 | 23.71 | 26.90 | 32.87 | a | 42.67 | 47.77 | a | 56.50 | 66.58 | 66.42 | 56.53 | 42.26 | 31.17 | 25.27 | a | 43.22 | ||||||||||
2013 | 21.00 | 26.21 | 35.94 | 41.33 | 48.06 | 57.03 | 67.19 | 64.16 | 56.52 | a | 37.23 | 33.97 | a | 24.00 | b | 42.72 | ||||||||||
2014 | 23.74 | 29.43 | 36.19 | 40.00 | a | 47.55 | 53.59 | a | 65.16 | 62.00 | a | 58.83 | 45.16 | 31.11 | b | 30.59 | b | 43.61 | ||||||||
2015 | 28.19 | 32.54 | 36.03 | 40.04 | b | 47.42 | 59.43 | 63.40 | a | 65.18 | c | 58.76 | a | 49.26 | 30.30 | 22.80 | a | 44.45 | ||||||||
2016 | 26.48 | 28.90 | 35.39 | 41.67 | 46.81 | 59.55 | a | 64.19 | d | 61.32 | c | 57.37 | 45.06 | 35.14 | a | 28.00 | 44.16 | |||||||||
2017 | 31.70 | a | 35.04 | c | 37.90 | 39.37 | 46.81 | 56.40 | 67.45 | 62.23 | 51.90 | a | 41.10 | 36.27 | 23.29 | 44.12 | ||||||||||
2018 | 26.68 | c | 27.44 | a | 34.13 | 43.15 | j | 48.27 | a | 54.59 | a | 66.47 | a | 64.74 | 55.38 | a | 47.52 | 28.53 | 26.84 | l | 45.37 | b | ||||
2019 | 29.83 | y | 28.86 | 36.40 | a | 43.10 | 45.42 | 53.90 | 64.06 | 63.07 | c | 58.13 | 38.42 | 33.22 | c | 28.28 | b | 44.81 | a | |||||||
2020 | 25.45 | b | 27.69 | 37.12 | f | 41.41 | c | 49.48 | f | 55.17 | a | 64.35 | 64.16 | 53.27 | 41.90 | 31.83 | 20.13 | 42.54 | b | |||||||
2021 | 22.71 | 26.00 | 29.81 | 43.73 | 46.19 | 59.54 | b | 69.26 | 62.20 | a | 59.50 | 42.00 | 32.47 | 28.53 | a | 43.49 | ||||||||||
2022 | 23.48 | 23.54 | 33.32 | 41.43 | 47.19 | j | 57.48 | e | 68.39 | c | 65.50 | a | 59.76 | a | 44.37 | a | 27.34 | a | 27.23 | a | 42.90 | a | ||||
2023 | 27.93 | b | 26.50 | b | 33.94 | 38.79 | a | 48.80 | a | 51.58 | d | 65.48 | 65.45 | 54.77 | 43.29 | 33.74 | c | 25.68 | c | 43.00 | ||||||
2024 | 25.44 | f | 31.41 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 31.41 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.03 | 29.16 | 34.11 | 39.87 | 46.79 | 54.33 | 64.07 | 62.83 | 55.09 | 43.08 | 31.67 | 26.13 | 42.66 | |||||||||||||
S.D. | 3.15 | 3.72 | 2.58 | 2.53 | 2.36 | 2.85 | 2.30 | 2.19 | 2.59 | 2.87 | 2.83 | 3.07 | 1.30 | |||||||||||||
SKEW | 0.41 | -0.06 | -0.30 | -0.55 | -0.02 | -0.26 | -0.19 | -0.55 | -0.32 | -0.01 | -0.59 | -0.04 | -0.49 | |||||||||||||
MAX | 34.19 | 36.61 | 39.87 | 44.10 | 52.55 | 60.63 | 69.26 | 66.68 | 59.76 | 49.26 | 37.30 | 32.71 | 45.44 | |||||||||||||
MIN | 18.83 | 20.28 | 28.33 | 31.69 | 41.06 | 45.39 | 58.13 | 56.65 | 48.73 | 36.55 | 22.30 | 19.79 | 39.51 | |||||||||||||
YRS | 76 | 82 | 82 | 83 | 82 | 82 | 83 | 82 | 80 | 82 | 84 | 73 | 58 |