YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 70.93 | q | 68.03 | 68.43 | 46.61 | 38.33 | 33.94 | 51.07 | g | |||||
1952 | 30.90 | 37.31 | 37.00 | a | 52.13 | 54.74 | 57.60 | 72.10 | 70.55 | 70.53 | 66.87 | 43.57 | 36.00 | 52.44 | ||||||||||||
1953 | 40.97 | 40.25 | d | 40.94 | 44.07 | 48.06 | 51.57 | 69.71 | 67.19 | 68.03 | 56.06 | 45.40 | 39.29 | 50.96 | ||||||||||||
1954 | 34.35 | 45.42 | d | 39.33 | a | 45.17 | 55.57 | a | 53.17 | 64.77 | 59.32 | 60.34 | a | 53.00 | b | 48.27 | 37.47 | a | 49.68 | |||||||
1955 | 36.19 | 35.44 | a | 33.68 | 39.60 | 49.06 | 59.27 | 61.87 | 69.32 | 62.40 | 54.23 | 34.50 | b | 32.38 | b | 47.33 | ||||||||||
1956 | 31.74 | 31.71 | a | 36.69 | b | 48.10 | 57.90 | 57.27 | 72.06 | 67.80 | a | 65.40 | e | 51.00 | 47.00 | a | 43.25 | c | 50.83 | |||||||
1957 | 31.61 | 39.96 | 42.42 | 46.27 | 57.52 | 61.87 | 65.42 | 63.94 | 68.97 | 50.97 | 44.83 | 41.29 | 51.25 | |||||||||||||
1958 | 40.23 | 42.86 | 40.87 | 44.73 | 65.32 | 62.53 | 74.03 | 73.84 | 61.97 | 59.42 | 43.07 | 43.45 | 54.36 | |||||||||||||
1959 | 35.68 | 35.25 | 39.71 | 47.53 | 49.42 | 59.83 | 71.97 | 67.61 | 57.43 | 56.07 | a | 47.20 | 39.42 | 50.59 | ||||||||||||
1960 | 32.84 | 34.90 | 42.90 | 46.57 | 49.03 | 63.13 | 72.77 | 64.10 | 65.33 | 57.03 | 40.72 | a | 40.40 | a | 50.81 | |||||||||||
1961 | 41.10 | 38.96 | 39.26 | 46.07 | a | 50.94 | 68.47 | 71.23 | 74.23 | 56.90 | 50.81 | 41.53 | 34.90 | 51.20 | ||||||||||||
1962 | 37.55 | 40.86 | 37.90 | 51.77 | 44.90 | 60.37 | 67.87 | 64.45 | 66.73 | 55.94 | 45.10 | 42.58 | 51.33 | |||||||||||||
1963 | 35.74 | 47.89 | 42.10 | 41.40 | 54.58 | 56.13 | 61.71 | 68.19 | 70.23 | 53.97 | 40.67 | 42.23 | a | 51.24 | ||||||||||||
1964 | 34.48 | 40.24 | 38.16 | 42.40 | 48.74 | 55.87 | ----- | z | 63.03 | 61.03 | 56.61 | 40.53 | 33.71 | 46.80 | a | |||||||||||
1965 | 39.06 | 40.43 | 44.94 | 48.50 | 51.10 | 58.87 | 70.58 | 67.71 | 59.20 | 61.97 | 46.30 | 37.65 | 52.19 | |||||||||||||
1966 | 36.26 | 37.14 | 41.71 | 49.60 | 57.48 | 57.80 | 65.90 | a | 67.58 | 65.43 | 55.80 | a | 44.27 | 37.52 | 51.37 | |||||||||||
1967 | 36.61 | 41.46 | 38.52 | 41.93 | 54.48 | 62.73 | 70.81 | 77.19 | 71.00 | 52.23 | 44.30 | 34.52 | 52.15 | |||||||||||||
1968 | 34.77 | a | 43.17 | 45.26 | 44.17 | 52.32 | 58.90 | 71.16 | 63.39 | 60.97 | 50.06 | 40.83 | 31.90 | 49.74 | ||||||||||||
1969 | 28.13 | 34.18 | 43.71 | 44.87 | 59.13 | 63.59 | a | 65.94 | 65.77 | 61.37 | 47.26 | 46.50 | 37.77 | 49.85 | ||||||||||||
1970 | 34.52 | 41.61 | 39.03 | 38.87 | 53.68 | 65.23 | 69.19 | 71.23 | 55.90 | 49.94 | 40.40 | 33.19 | 49.40 | |||||||||||||
1971 | 34.52 | 38.32 | 35.16 | 43.00 | 52.71 | 54.17 | 72.58 | 73.84 | 57.60 | 49.13 | a | 38.83 | 32.42 | 48.52 | ||||||||||||
1972 | 31.29 | 38.28 | 42.81 | 40.60 | 56.35 | 61.57 | 72.55 | 72.19 | 56.53 | 52.52 | 39.57 | 30.55 | 49.57 | |||||||||||||
1973 | 31.97 | 39.82 | 38.45 | 45.80 | 56.48 | 59.40 | 69.71 | 65.74 | 61.47 | 50.71 | 34.83 | 36.77 | 49.26 | |||||||||||||
1974 | 30.03 | 36.11 | 38.71 | 41.80 | 46.97 | 63.50 | 66.03 | 70.84 | 69.20 | 57.32 | 42.23 | 36.32 | 49.92 | |||||||||||||
1975 | 36.00 | 35.32 | 37.03 | 38.77 | 51.90 | 56.90 | 68.06 | 60.90 | 67.07 | 46.81 | 38.27 | 38.61 | 47.97 | |||||||||||||
1976 | 39.26 | 37.28 | 37.74 | 42.86 | a | 54.23 | 55.47 | 67.26 | 63.00 | 64.57 | 57.17 | a | 48.07 | 41.84 | 50.73 | |||||||||||
1977 | 38.87 | 43.75 | 35.81 | 50.53 | 45.55 | 63.87 | 64.90 | 73.03 | 56.90 | 53.13 | 37.23 | 36.45 | 50.00 | |||||||||||||
1978 | 36.16 | 39.29 | 46.32 | 43.93 | 48.29 | 62.70 | 67.87 | 65.32 | 55.67 | 56.29 | 37.87 | 31.48 | 49.27 | |||||||||||||
1979 | 27.06 | 33.25 | 43.71 | 42.17 | 54.90 | 61.77 | 69.23 | 65.26 | 66.80 | 54.58 | 39.53 | 38.81 | 49.76 | |||||||||||||
1980 | 31.97 | 37.69 | 36.77 | 48.40 | 51.19 | 53.30 | 67.84 | 63.42 | 61.47 | 55.55 | 42.17 | 43.45 | 49.43 | |||||||||||||
1981 | 40.42 | 38.82 | 42.06 | 44.76 | a | 50.16 | 54.83 | 65.81 | 72.71 | 62.73 | 50.23 | 44.10 | 34.39 | 50.09 | ||||||||||||
1982 | 32.16 | 34.48 | a | 38.97 | a | 43.10 | 50.97 | 63.70 | c | 66.71 | 68.52 | 59.00 | 49.84 | 37.64 | b | 34.65 | 48.31 | |||||||||
1983 | 38.03 | 38.14 | 41.65 | 45.23 | 56.61 | 56.93 | 61.33 | a | 67.55 | 58.30 | 53.74 | 39.10 | 28.48 | 48.76 | ||||||||||||
1984 | 38.58 | 39.69 | 41.90 | 40.57 | 49.13 | 55.87 | 70.26 | 69.74 | 57.77 | 45.47 | a | 36.66 | a | 31.28 | b | 48.08 | ||||||||||
1985 | 35.41 | b | 34.57 | 38.35 | 48.70 | 52.39 | 62.30 | 75.16 | 65.48 | 54.83 | 49.61 | 29.83 | 42.16 | 49.07 | ||||||||||||
1986 | 40.39 | 37.61 | 47.71 | 43.87 | 52.84 | 66.03 | a | 60.19 | 73.65 | 53.90 | 57.68 | 42.25 | b | 37.94 | 51.17 | |||||||||||
1987 | 35.71 | 39.89 | 41.16 | 53.57 | 56.03 | 64.67 | 63.32 | 69.42 | 67.53 | 63.53 | a | 42.47 | 32.19 | 52.46 | ||||||||||||
1988 | 34.35 | 42.97 | 41.03 | 46.73 | 50.94 | 58.17 | 67.32 | 68.26 | 64.63 | 64.30 | a | 38.37 | 38.42 | 51.29 | ||||||||||||
1989 | 36.23 | 28.93 | 38.74 | 51.20 | 51.00 | a | 62.93 | 62.13 | 62.35 | 66.00 | 50.68 | 44.70 | 45.29 | 50.02 | ||||||||||||
1990 | 35.55 | 34.93 | 44.10 | 51.83 | 48.80 | a | 58.03 | 70.90 | 68.23 | 68.10 | 49.94 | 41.33 | 29.06 | 50.07 | ||||||||||||
1991 | 36.68 | 46.68 | 37.83 | a | 41.83 | 45.87 | 52.33 | 69.36 | c | 71.23 | a | 68.73 | 56.65 | 41.39 | b | 37.58 | 50.51 | |||||||||
1992 | 39.13 | 44.45 | 50.97 | 48.83 | 63.23 | 65.47 | 68.45 | 71.29 | 60.73 | 57.29 | 40.17 | a | 31.27 | a | 53.44 | |||||||||||
1993 | 30.16 | 33.32 | 43.29 | 43.00 | 58.32 | 55.76 | a | 55.61 | 65.37 | a | 67.72 | a | 56.81 | 40.00 | 38.83 | a | 49.02 | |||||||||
1994 | 42.71 | 36.46 | 46.00 | 48.40 | 55.23 | 57.77 | 70.65 | 66.77 | 68.07 | 50.42 | 33.77 | 35.13 | 50.95 | |||||||||||||
1995 | 36.48 | 47.33 | a | 40.87 | 43.90 | 55.67 | a | 57.47 | 67.32 | 65.19 | 65.48 | a | 49.60 | a | 46.48 | a | 35.03 | 50.90 | ||||||||
1996 | 36.00 | 37.90 | 42.71 | 46.63 | 47.97 | 60.03 | 73.55 | 71.97 | 60.20 | 51.90 | a | 43.30 | 35.70 | a | 50.65 | |||||||||||
1997 | 36.35 | 37.96 | a | 40.52 | 43.17 | 57.84 | 57.79 | b | 65.83 | a | 71.06 | 63.27 | 49.66 | b | 43.90 | 37.32 | 50.39 | |||||||||
1998 | 36.30 | a | 37.68 | 41.81 | 45.40 | 47.61 | 58.23 | 71.19 | 73.52 | 68.20 | 51.80 | a | 40.07 | 33.32 | 50.43 | |||||||||||
1999 | 36.84 | 33.39 | 38.16 | 42.57 | 48.26 | 55.68 | b | 68.68 | 69.67 | a | 66.03 | 56.42 | 45.90 | 38.77 | a | 50.03 | ||||||||||
2000 | 33.10 | 38.59 | 39.68 | 52.30 | 51.39 | 64.73 | 65.32 | 67.74 | 62.13 | 51.13 | a | 37.43 | 36.77 | a | 50.03 | |||||||||||
2001 | 38.16 | 36.43 | 42.65 | 42.23 | 58.35 | 57.31 | a | 66.35 | 69.68 | 66.97 | 53.23 | 43.40 | 33.58 | 50.69 | ||||||||||||
2002 | 33.73 | a | 38.79 | 36.19 | 44.23 | 50.67 | a | 63.53 | 72.10 | 69.48 | 65.73 | 52.74 | 46.27 | 37.13 | 50.88 | |||||||||||
2003 | 41.26 | 38.18 | 40.19 | 42.50 | 51.23 | a | 64.50 | 72.68 | 73.77 | 67.23 | 56.19 | 35.97 | a | 34.87 | 51.55 | |||||||||||
2004 | 35.16 | 36.52 | 46.45 | 51.27 | 52.87 | 61.03 | 71.26 | 70.23 | 58.47 | 52.87 | 43.83 | 39.35 | 51.61 | |||||||||||||
2005 | 38.32 | 41.89 | 45.35 | 44.33 | 53.90 | 55.13 | 70.13 | 71.94 | 61.41 | a | 52.77 | 41.90 | 35.32 | 51.03 | ||||||||||||
2006 | 37.45 | 35.11 | 36.90 | 47.20 | 56.52 | 61.30 | 72.06 | 69.03 | 65.13 | 52.81 | 38.23 | 36.68 | 50.70 | |||||||||||||
2007 | 35.84 | 39.57 | 45.10 | 44.67 | 55.00 | 58.30 | 71.07 | b | 66.00 | 58.73 | 48.42 | 44.07 | 32.81 | 49.96 | ||||||||||||
2008 | 32.40 | a | 39.03 | 37.61 | 39.53 | 50.23 | 58.76 | a | 69.71 | 69.00 | 64.63 | 52.29 | 45.67 | 33.10 | 49.33 | |||||||||||
2009 | 38.74 | 38.86 | 33.90 | 43.80 | 55.71 | 59.69 | a | 73.42 | 68.55 | 66.93 | 47.10 | 40.40 | 32.32 | 49.95 | ||||||||||||
2010 | 38.52 | 39.93 | 41.94 | 41.60 | 46.26 | 54.70 | 68.81 | 68.13 | 60.60 | 53.55 | 37.57 | 34.35 | 48.83 | |||||||||||||
2011 | 37.13 | 32.93 | 36.06 | 37.86 | b | 44.65 | 54.07 | 61.90 | 69.52 | 67.23 | 51.29 | 37.50 | 37.42 | 47.30 | ||||||||||||
2012 | 37.30 | a | 35.76 | 37.00 | 45.97 | 52.23 | 54.79 | f | 66.87 | 73.16 | 68.53 | 52.42 | 41.21 | a | 31.97 | 49.31 | a | |||||||||
2013 | 37.39 | 34.64 | 39.32 | 45.33 | 54.29 | 60.40 | 72.52 | 68.84 | 61.33 | 51.87 | 41.67 | 35.97 | 50.30 | |||||||||||||
2014 | 44.61 | 31.46 | 41.65 | 46.30 | 55.45 | 57.43 | 73.23 | 71.58 | 66.03 | 56.10 | 40.20 | 36.16 | 51.68 | |||||||||||||
2015 | 43.06 | 43.93 | 50.68 | 46.63 | 55.87 | 70.20 | 72.29 | 71.61 | 60.77 | 57.97 | 39.17 | 34.03 | 53.85 | |||||||||||||
2016 | 35.55 | 42.48 | 40.45 | 53.60 | 55.26 | 62.13 | 65.16 | 70.48 | 59.53 | 48.06 | 45.10 | 29.65 | 50.62 | |||||||||||||
2017 | 32.23 | 34.21 | 39.10 | 41.93 | a | 55.90 | 62.53 | 71.81 | 77.52 | 65.67 | 50.68 | 40.07 | 36.35 | 50.67 | ||||||||||||
2018 | 36.81 | 34.57 | 38.77 | 45.40 | 58.61 | 59.50 | 74.68 | 70.94 | 61.10 | 54.48 | 42.57 | 34.00 | 50.95 | |||||||||||||
2019 | 39.35 | 28.14 | 40.52 | 46.20 | 55.73 | a | 60.70 | 65.42 | 70.16 | 57.30 | 47.16 | 45.60 | 37.68 | 49.50 | ||||||||||||
2020 | 35.84 | 37.45 | 39.90 | 48.60 | 54.52 | 57.60 | 68.52 | 69.65 | 68.30 | 55.26 | 40.47 | 37.13 | 51.10 | |||||||||||||
2021 | 37.71 | 31.46 | 40.52 | 49.80 | 53.71 | 68.60 | 73.52 | 69.29 | 63.80 | 49.13 | 43.60 | 34.53 | n | 52.83 | a | |||||||||||
2022 | 42.26 | 39.07 | 42.52 | 38.70 | 45.39 | 58.93 | 73.84 | 75.87 | 68.40 | 61.81 | 37.50 | 33.13 | 51.45 | |||||||||||||
2023 | 35.71 | 34.50 | 34.35 | 42.57 | 59.16 | 63.30 | 71.65 | 72.19 | 60.03 | 54.97 | 42.83 | 41.16 | 51.04 | |||||||||||||
2024 | 34.65 | 36.79 | 40.84 | 40.57 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.43 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 36.16 | 38.00 | 40.58 | 45.24 | 52.98 | 59.79 | 68.78 | 68.96 | 63.32 | 53.41 | 41.45 | 36.21 | 50.43 | |||||||||||||
S.D. | 3.44 | 4.02 | 3.55 | 3.76 | 4.28 | 4.00 | 3.94 | 3.71 | 4.39 | 4.28 | 3.66 | 3.71 | 1.35 | |||||||||||||
SKEW | -0.12 | 0.17 | 0.58 | 0.32 | 0.15 | 0.25 | -0.80 | -0.15 | -0.23 | 0.73 | -0.42 | 0.27 | 0.22 | |||||||||||||
MAX | 44.61 | 47.89 | 50.97 | 53.60 | 65.32 | 70.20 | 75.16 | 77.52 | 71.00 | 66.87 | 48.27 | 45.29 | 54.36 | |||||||||||||
MIN | 27.06 | 28.14 | 33.68 | 37.86 | 44.65 | 51.57 | 55.61 | 59.32 | 53.90 | 45.47 | 29.83 | 28.48 | 47.30 | |||||||||||||
YRS | 73 | 73 | 73 | 72 | 72 | 71 | 71 | 73 | 73 | 73 | 73 | 72 | 69 |