YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.33 | y | ----- | z |
1934 | 40.42 | 39.18 | 44.17 | a | 44.83 | 48.43 | a | 48.53 | 50.42 | 51.23 | 45.07 | 45.39 | 43.73 | 36.16 | 44.80 | |||||||||||
1935 | 33.39 | 36.81 | a | 34.29 | 39.97 | 40.16 | 48.03 | 50.30 | a | 48.73 | a | 47.10 | 43.23 | a | 33.87 | 33.00 | 40.74 | |||||||||
1936 | 35.87 | 30.48 | 35.27 | a | 41.63 | 46.42 | 50.79 | a | 50.94 | 49.97 | 46.43 | 42.13 | 32.37 | 35.42 | 41.48 | |||||||||||
1937 | 24.13 | 33.36 | 38.94 | 38.73 | 43.77 | 51.03 | 52.80 | a | 49.74 | 49.07 | 46.71 | 42.77 | 37.74 | 42.40 | ||||||||||||
1938 | 35.68 | 35.07 | 36.61 | 41.13 | 43.52 | 47.80 | 51.84 | 46.68 | 49.87 | 44.48 | 33.93 | 34.80 | a | 41.78 | ||||||||||||
1939 | 35.39 | 33.32 | 35.74 | 41.07 | 43.81 | 46.97 | 50.87 | 50.06 | 48.80 | 45.16 | 38.60 | 40.03 | 42.48 | |||||||||||||
1940 | 34.77 | 39.00 | 40.71 | 42.33 | 45.35 | 48.63 | 50.77 | 50.35 | 52.27 | 46.65 | 36.97 | 35.74 | 43.63 | |||||||||||||
1941 | 37.10 | 38.36 | 39.58 | 40.47 | 46.29 | 49.50 | 53.42 | 53.52 | 47.90 | 44.45 | 41.10 | 36.97 | 44.05 | |||||||||||||
1942 | 32.26 | 35.61 | 36.23 | 40.80 | 45.23 | 47.87 | 54.19 | 52.00 | 45.17 | 43.29 | 39.53 | 34.77 | 42.25 | |||||||||||||
1943 | 30.61 | 35.25 | 36.45 | 42.47 | 42.81 | 48.03 | 50.74 | 50.39 | 49.97 | 45.71 | 38.80 | 33.19 | 42.03 | |||||||||||||
1944 | 33.58 | 34.55 | 35.87 | 40.20 | 44.10 | 48.60 | 50.35 | 49.29 | 50.13 | 46.61 | 37.13 | 32.23 | 41.89 | |||||||||||||
1945 | 35.37 | a | 36.18 | 36.35 | 39.17 | 46.03 | 47.07 | 49.45 | 50.84 | 47.23 | 43.29 | 39.57 | 35.97 | 42.21 | ||||||||||||
1946 | 34.74 | 35.43 | 37.81 | 39.47 | 44.84 | 48.73 | 51.65 | 50.26 | 47.13 | 41.13 | 37.23 | 36.35 | 42.06 | |||||||||||||
1947 | 31.68 | 37.29 | 39.70 | a | 42.83 | 46.03 | 49.40 | 52.52 | 50.94 | 49.33 | 48.06 | 40.43 | 36.97 | 43.76 | ||||||||||||
1948 | 32.65 | 33.59 | 36.23 | 38.70 | 44.71 | 51.80 | 49.97 | 51.40 | a | 47.20 | 43.71 | 36.63 | 31.52 | 41.51 | ||||||||||||
1949 | 23.55 | 32.78 | a | 37.84 | 40.30 | 46.35 | 46.70 | 49.97 | 50.97 | 49.20 | 39.00 | 41.83 | 34.52 | 41.08 | ||||||||||||
1950 | 27.29 | 32.32 | 36.16 | 38.33 | 41.42 | 50.00 | 50.84 | 51.90 | 48.10 | 46.32 | 40.30 | 40.97 | 42.00 | |||||||||||||
1951 | 33.32 | 35.89 | 32.29 | 39.37 | 44.17 | a | 47.33 | 50.42 | 47.97 | 47.27 | 44.00 | a | 38.80 | 33.13 | 41.16 | |||||||||||
1952 | 32.10 | 35.07 | 35.65 | 40.00 | 43.23 | 47.60 | 50.90 | 52.32 | 49.57 | 44.77 | 31.67 | 35.32 | 41.52 | |||||||||||||
1953 | 41.10 | 35.79 | 35.74 | 39.93 | 43.48 | 46.90 | a | 49.65 | 52.97 | 50.13 | 43.90 | 42.27 | 37.71 | 43.30 | ||||||||||||
1954 | 34.35 | 36.14 | 33.29 | 38.93 | a | 44.03 | 47.23 | 49.84 | 51.00 | 48.00 | 41.61 | 42.37 | 34.39 | 41.77 | ||||||||||||
1955 | 33.26 | 33.18 | 33.45 | 36.63 | 41.97 | a | 48.57 | 50.42 | 47.81 | 46.60 | 45.00 | 37.37 | 36.42 | 40.89 | ||||||||||||
1956 | 35.48 | 31.00 | 35.17 | a | 39.87 | 46.10 | 47.13 | 51.77 | 51.16 | 47.40 | 42.00 | 34.47 | 35.16 | 41.39 | ||||||||||||
1957 | 27.58 | 35.14 | 39.42 | 41.20 | 47.32 | 50.07 | 49.00 | 47.84 | 49.80 | 43.71 | 34.50 | 36.81 | 41.87 | |||||||||||||
1958 | 37.16 | 42.46 | 34.77 | 40.77 | 47.32 | 53.50 | 54.26 | 52.06 | 48.57 | 43.35 | 40.66 | a | 41.00 | 44.66 | ||||||||||||
1959 | 38.37 | a | 35.29 | 37.58 | 40.63 | 42.68 | 50.10 | 51.00 | 48.32 | 49.17 | 45.13 | 36.07 | a | 35.00 | 42.44 | |||||||||||
1960 | 33.35 | 36.10 | 37.19 | 40.80 | 43.45 | 47.00 | 50.23 | 48.68 | 47.97 | 43.74 | 37.83 | 34.29 | 41.72 | |||||||||||||
1961 | 36.26 | 40.00 | 38.77 | 38.83 | 45.35 | 49.87 | 50.16 | 52.45 | 45.37 | 42.19 | 34.23 | 35.77 | 42.44 | |||||||||||||
1962 | 31.26 | 34.86 | 35.52 | 41.34 | a | 43.65 | 45.71 | b | 48.06 | 51.03 | 48.33 | 44.23 | 40.97 | 35.40 | a | 41.70 | ||||||||||
1963 | 27.81 | 41.43 | 36.57 | a | 38.97 | a | 44.13 | 48.80 | 50.00 | 51.06 | 52.83 | 45.32 | 40.70 | 35.77 | 42.78 | |||||||||||
1964 | 35.45 | 32.14 | 35.61 | 37.30 | 41.06 | 47.80 | 51.03 | 50.13 | 45.70 | 44.84 | 36.67 | 35.94 | 41.14 | |||||||||||||
1965 | 35.77 | 36.21 | 34.16 | 41.00 | 40.74 | 46.40 | 52.59 | i | 52.23 | 44.20 | 46.19 | 42.00 | 33.10 | 41.09 | a | |||||||||||
1966 | 34.19 | 34.29 | 36.23 | 38.97 | 41.29 | 47.70 | 49.77 | 47.90 | 49.03 | 42.42 | 40.37 | 36.87 | 41.59 | |||||||||||||
1967 | 36.48 | 33.93 | 34.97 | 35.87 | 40.97 | 49.90 | 49.35 | 50.26 | 47.53 | 43.65 | 39.00 | 32.90 | 41.23 | |||||||||||||
1968 | 33.32 | 38.83 | 38.10 | 37.20 | 42.87 | 48.13 | 51.39 | 52.84 | 49.20 | 41.06 | 39.73 | 33.61 | 42.19 | |||||||||||||
1969 | 30.61 | 31.75 | 34.26 | 39.13 | 45.32 | 52.30 | 49.74 | 47.23 | 47.33 | 41.52 | 37.00 | 36.71 | 41.08 | |||||||||||||
1970 | 36.19 | 35.93 | 36.32 | 35.83 | 42.42 | 50.57 | 49.42 | 47.48 | 44.43 | 40.19 | 38.67 | 32.97 | 40.87 | |||||||||||||
1971 | 31.87 | 34.04 | 33.52 | 37.20 | 43.68 | 45.93 | 50.43 | a | 52.48 | 45.80 | 40.13 | 36.87 | 32.71 | 40.39 | ||||||||||||
1972 | 31.42 | 35.14 | 39.06 | 36.90 | 43.32 | 47.57 | 50.13 | 51.03 | 44.40 | 40.10 | 39.10 | 28.90 | 40.59 | |||||||||||||
1973 | 31.45 | 35.75 | 36.06 | 38.63 | 44.29 | 48.93 | 49.35 | 46.65 | 47.97 | 41.23 | 37.41 | a | 37.55 | 41.27 | ||||||||||||
1974 | 29.74 | 33.68 | 35.19 | 38.50 | 42.19 | 48.23 | 50.68 | 50.52 | 46.57 | 38.42 | 39.37 | 35.68 | 40.73 | |||||||||||||
1975 | 35.48 | 34.14 | 33.71 | 35.03 | 42.10 | 46.40 | 52.23 | 49.74 | 46.83 | a | 44.71 | 36.40 | 35.39 | 41.01 | ||||||||||||
1976 | 34.03 | 32.28 | 33.35 | 38.33 | 41.87 | 44.07 | 50.10 | 52.42 | 49.37 | 41.32 | 39.23 | 31.90 | a | 40.69 | ||||||||||||
1977 | 28.94 | 35.14 | 34.97 | 38.47 | 41.94 | 48.30 | 48.55 | 53.74 | 48.33 | 43.45 | 37.53 | 38.58 | 41.49 | |||||||||||||
1978 | 37.81 | 37.68 | 39.90 | 39.73 | 42.74 | 50.47 | 52.13 | 52.13 | 48.38 | a | 40.93 | a | 32.33 | 30.00 | 42.02 | |||||||||||
1979 | 26.39 | 34.25 | 37.68 | 41.30 | 43.94 | 46.17 | 50.39 | 50.61 | 49.97 | 45.84 | 36.20 | 36.42 | 41.60 | |||||||||||||
1980 | 30.16 | 36.03 | 36.55 | 40.17 | 42.87 | 47.23 | 50.61 | 46.42 | 46.52 | a | 42.16 | 40.37 | 36.52 | 41.30 | ||||||||||||
1981 | 35.87 | 35.32 | 36.93 | a | 40.53 | 44.16 | 48.37 | 49.23 | 51.48 | 47.60 | 41.67 | a | 39.24 | a | 37.52 | 42.33 | ||||||||||
1982 | 32.30 | a | 33.77 | b | 35.39 | 35.24 | a | 40.65 | 49.97 | 50.42 | 50.48 | 47.53 | 43.48 | 35.43 | 34.23 | a | 40.74 | |||||||||
1983 | 36.29 | 38.61 | 40.26 | 38.53 | 44.73 | a | 48.13 | 52.42 | 53.00 | 46.20 | 42.45 | 40.30 | 32.74 | 42.81 | ||||||||||||
1984 | 33.52 | 35.52 | 39.35 | 39.17 | 43.35 | 46.47 | 50.13 | 50.37 | d | 47.46 | d | 42.45 | 38.58 | d | 32.17 | b | 41.54 | |||||||||
1985 | 29.31 | b | 31.21 | d | 33.33 | a | 41.75 | b | 42.27 | e | 47.93 | c | 51.26 | 49.10 | 45.03 | 40.23 | a | 32.43 | 27.90 | 39.31 | ||||||
1986 | 36.61 | 37.54 | 40.06 | 38.80 | 44.23 | a | 50.83 | 49.35 | 51.57 | a | 45.73 | 43.55 | 39.27 | 33.26 | 42.57 | |||||||||||
1987 | 33.00 | 35.44 | c | 37.74 | 40.67 | 46.16 | 48.13 | 51.30 | a | 48.87 | 46.67 | 40.42 | 38.90 | 34.32 | 41.80 | |||||||||||
1988 | 33.43 | a | 33.97 | 35.81 | 41.47 | 43.10 | 47.97 | 50.29 | 47.42 | 44.70 | 46.65 | 40.14 | a | 34.23 | a | 41.60 | ||||||||||
1989 | 33.94 | 26.64 | 37.40 | a | 42.17 | 43.52 | 48.50 | 50.52 | 50.97 | 46.43 | 41.30 | a | 38.27 | 33.03 | 41.06 | |||||||||||
1990 | 36.07 | a | 31.11 | 36.68 | 40.87 | 43.42 | 49.37 | 52.71 | 52.93 | a | 49.93 | 40.77 | 38.60 | 26.60 | a | 41.59 | ||||||||||
1991 | 30.10 | a | 39.00 | 34.58 | 38.77 | 41.97 | a | 46.20 | 51.42 | 51.03 | 45.30 | 40.59 | b | 41.16 | e | 35.43 | c | 41.30 | ||||||||
1992 | 35.93 | a | 39.07 | b | 38.42 | 42.61 | b | 45.00 | b | 50.50 | 51.74 | 49.77 | a | 46.15 | c | 43.79 | b | 39.00 | d | 32.82 | c | 42.90 | ||||
1993 | 30.22 | d | 32.11 | a | 39.83 | a | 41.11 | c | 46.55 | b | 48.72 | a | 49.03 | 50.90 | b | 44.50 | b | 43.46 | e | 31.19 | c | 32.65 | e | 40.86 | ||
1994 | 34.92 | e | 33.27 | b | 36.69 | b | 40.54 | b | 45.54 | e | 46.76 | a | 49.39 | 47.67 | a | 48.38 | a | 40.60 | a | 33.83 | 35.07 | a | 41.05 | |||
1995 | 37.47 | a | 38.07 | 37.03 | 38.55 | a | 44.29 | 48.07 | 53.00 | 47.58 | 51.13 | 42.34 | b | 42.40 | 37.43 | a | 43.11 | |||||||||
1996 | 36.29 | 34.45 | 36.35 | 41.40 | 42.71 | 46.43 | 51.77 | a | 49.17 | b | 44.83 | a | 43.83 | b | 39.43 | 36.55 | b | 41.93 | ||||||||
1997 | 35.10 | b | 34.86 | 37.39 | 39.03 | a | 45.55 | 47.60 | 50.68 | 51.68 | 49.83 | a | 43.57 | a | 40.97 | 32.55 | 42.40 | |||||||||
1998 | 38.50 | a | 37.11 | 37.00 | 39.20 | 45.19 | 48.37 | 54.00 | 49.71 | 47.10 | 43.13 | 40.80 | 32.42 | 42.71 | ||||||||||||
1999 | 35.35 | 35.79 | 35.00 | a | 36.53 | 40.87 | a | 46.23 | 49.16 | 53.45 | 43.38 | a | 39.94 | 41.37 | 35.19 | 41.02 | ||||||||||
2000 | 33.39 | 37.10 | 34.43 | a | 40.40 | 44.45 | 47.60 | 49.77 | 46.68 | 46.79 | a | 42.42 | 33.10 | 34.42 | 40.88 | |||||||||||
2001 | 33.10 | a | 32.67 | a | 37.16 | 37.40 | 42.37 | a | 45.25 | b | 49.13 | 50.47 | a | 45.38 | a | 41.90 | b | 40.33 | 34.97 | a | 40.84 | |||||
2002 | 34.86 | b | 33.68 | 33.39 | 38.03 | 41.32 | 47.48 | a | 50.87 | 47.32 | 45.40 | 39.74 | 36.97 | 35.60 | a | 40.39 | ||||||||||
2003 | 38.07 | b | 33.86 | 39.74 | 38.93 | a | 42.59 | b | 48.43 | 49.23 | a | 50.48 | 48.03 | 46.29 | 35.63 | 36.10 | a | 42.28 | ||||||||
2004 | 36.26 | d | 36.32 | a | 37.90 | a | 39.31 | a | 45.48 | 48.87 | 51.90 | 54.16 | 48.97 | 44.52 | 37.25 | b | 36.10 | b | 43.09 | |||||||
2005 | 34.84 | 32.14 | 36.80 | a | 39.72 | a | 46.81 | 47.30 | 51.81 | 49.45 | 43.60 | 44.68 | 35.86 | a | 34.03 | a | 41.42 | |||||||||
2006 | 37.40 | a | 32.21 | 34.58 | 38.43 | 43.03 | 51.00 | 52.17 | a | 47.90 | 46.27 | 39.19 | 39.13 | 34.10 | b | 41.29 | ||||||||||
2007 | 29.24 | b | 35.96 | 37.63 | a | 38.07 | ----- | z | 47.03 | a | 53.55 | 50.42 | 45.22 | c | 41.55 | 34.72 | a | 34.55 | 40.72 | a | ||||||
2008 | 31.39 | 33.10 | 34.45 | 35.27 | 43.86 | b | 43.90 | a | 49.00 | a | 51.55 | 45.59 | a | 42.77 | 40.48 | a | 31.47 | a | 40.24 | |||||||
2009 | 32.50 | a | 33.04 | 34.61 | 36.57 | 42.39 | 50.50 | 52.61 | 51.00 | 48.20 | 41.58 | 37.33 | 29.03 | 40.78 | ||||||||||||
2010 | 39.19 | 36.79 | 35.23 | 37.83 | 42.32 | 47.77 | 49.04 | c | 49.23 | 49.70 | 44.55 | 37.67 | 36.58 | 42.16 | ||||||||||||
2011 | 35.32 | 32.14 | 37.35 | 37.14 | a | 42.13 | 47.27 | 49.71 | 51.39 | 49.80 | 44.94 | 37.50 | 29.81 | 41.21 | ||||||||||||
2012 | 34.00 | 35.00 | 34.45 | 41.70 | 42.45 | 47.50 | 52.19 | 51.35 | 46.20 | 42.32 | 40.17 | 36.13 | 41.96 | |||||||||||||
2013 | 30.16 | 35.39 | 37.39 | 40.20 | 44.87 | 50.13 | 51.32 | 54.10 | 51.60 | 40.29 | 37.67 | 27.97 | 41.76 | |||||||||||||
2014 | 33.32 | 35.82 | 38.84 | 40.37 | 46.71 | 48.40 | 53.97 | 53.68 | 50.43 | 48.13 | 39.27 | 38.61 | 43.96 | |||||||||||||
2015 | 36.00 | 38.71 | 39.58 | 38.53 | 46.52 | 51.63 | 53.97 | 52.87 | 47.77 | 45.84 | 36.70 | 37.35 | 43.79 | |||||||||||||
2016 | 35.97 | 39.93 | 38.87 | 43.27 | 47.16 | 49.76 | a | 52.42 | 51.81 | 46.72 | a | 47.26 | 42.97 | 32.10 | 44.02 | |||||||||||
2017 | 30.42 | 35.75 | 39.68 | 40.77 | 45.23 | 50.20 | 51.42 | 53.45 | 50.77 | 42.06 | 39.60 | 31.61 | 42.58 | |||||||||||||
2018 | 37.73 | a | 34.75 | 36.03 | 41.43 | 47.19 | 48.33 | 52.42 | 53.61 | 46.03 | 42.87 | 39.47 | 36.90 | 43.07 | ||||||||||||
2019 | 34.35 | 32.54 | 34.19 | 43.07 | 45.07 | a | 48.67 | 51.74 | 53.32 | 52.04 | b | 39.52 | 35.30 | 35.26 | 42.09 | |||||||||||
2020 | 37.48 | 34.38 | 34.52 | 41.77 | 46.45 | 50.93 | 52.33 | a | 51.68 | 51.53 | m | 44.16 | 36.97 | 35.42 | 42.37 | a | ||||||||||
2021 | 36.03 | 36.75 | 34.65 | 37.43 | 44.13 | 51.93 | 53.45 | 53.90 | 46.27 | 42.84 | 41.50 | 36.52 | 42.95 | |||||||||||||
2022 | 33.03 | 33.29 | 39.52 | 38.10 | 44.03 | 50.23 | 55.03 | 54.29 | 51.03 | 44.74 | 33.90 | 33.87 | 42.59 | |||||||||||||
2023 | 35.10 | 31.64 | 33.71 | 39.07 | 46.29 | 47.43 | 51.61 | 54.84 | 48.90 | 45.39 | 38.80 | 38.61 | 42.62 | |||||||||||||
2024 | 36.10 | a | 37.45 | 37.35 | 39.29 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.97 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 33.83 | 35.11 | 36.60 | 39.54 | 44.00 | 48.42 | 51.02 | 50.70 | 47.65 | 43.18 | 38.16 | 34.68 | 41.90 | |||||||||||||
S.D. | 3.30 | 2.58 | 2.16 | 1.95 | 1.85 | 1.77 | 1.49 | 2.06 | 2.09 | 2.19 | 2.80 | 2.70 | 1.03 | |||||||||||||
SKEW | -0.70 | 0.10 | 0.53 | -0.10 | 0.11 | 0.24 | 0.53 | -0.21 | 0.21 | 0.06 | -0.47 | -0.51 | 0.58 | |||||||||||||
MAX | 41.10 | 42.46 | 44.17 | 44.83 | 48.43 | 53.50 | 55.03 | 54.84 | 52.83 | 48.13 | 43.73 | 41.00 | 44.80 | |||||||||||||
MIN | 23.55 | 26.64 | 32.29 | 35.03 | 40.16 | 43.90 | 48.06 | 46.42 | 43.38 | 38.42 | 31.19 | 26.60 | 39.31 | |||||||||||||
YRS | 91 | 91 | 91 | 90 | 89 | 90 | 89 | 90 | 89 | 90 | 90 | 90 | 87 |