YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 86.71 | 83.03 | 68.19 | 46.60 | 42.06 | 65.32 | g | |||||
1949 | 30.14 | b | 44.79 | 50.00 | f | 60.10 | 69.84 | 77.63 | 85.90 | 84.13 | 76.97 | 61.71 | 63.43 | 47.42 | 63.82 | a | ||||||||||
1950 | 45.55 | 52.21 | 51.40 | a | 61.93 | 67.45 | 82.10 | 83.13 | 82.61 | 71.83 | 75.32 | 51.21 | a | 50.37 | a | 64.59 | ||||||||||
1951 | 37.33 | d | 47.00 | 48.29 | 54.70 | 71.10 | a | 72.78 | c | 84.79 | c | 83.10 | 75.17 | a | 62.03 | a | 48.80 | 41.10 | 60.52 | |||||||
1952 | 46.97 | a | 47.35 | f | 46.47 | a | 59.68 | h | 69.38 | b | 88.20 | 88.35 | 86.16 | 79.47 | 68.94 | 44.73 | 40.39 | 65.91 | b | |||||||
1953 | 50.61 | 44.46 | 56.58 | 55.37 | 65.00 | 84.13 | 87.03 | 83.77 | 81.57 | 67.97 | 53.93 | 39.16 | 64.13 | |||||||||||||
1954 | 45.84 | 57.75 | 46.81 | 68.53 | 67.32 | 85.10 | 90.87 | 85.19 | 81.33 | 64.77 | 56.97 | 49.45 | 66.66 | |||||||||||||
1955 | 39.19 | 39.93 | 51.57 | a | 63.77 | 71.77 | 75.57 | 89.48 | 85.03 | 76.97 | 70.26 | 48.50 | 49.06 | 63.43 | ||||||||||||
1956 | 45.48 | 39.76 | 52.35 | 58.07 | 73.16 | 87.40 | 83.94 | 81.73 | a | 81.23 | 71.42 | 45.83 | 46.23 | 63.88 | ||||||||||||
1957 | 35.26 | 50.79 | 48.00 | 50.77 | 62.97 | 77.33 | 86.03 | 83.84 | 75.30 | 61.74 | 46.83 | 52.65 | 60.96 | |||||||||||||
1958 | 45.45 | 49.32 | 40.16 | 54.43 | 73.84 | 80.20 | 82.10 | 86.87 | 78.17 | 67.65 | 53.97 | 46.42 | 63.21 | |||||||||||||
1959 | 44.48 | 43.25 | 49.16 | 58.40 | 69.26 | 83.57 | 86.58 | 86.74 | 72.97 | 60.03 | 52.24 | a | 48.74 | 62.95 | ||||||||||||
1960 | 38.35 | 32.59 | 45.77 | 63.23 | 70.16 | 80.87 | 84.71 | 86.29 | 78.70 | 65.55 | 54.67 | 39.39 | 61.69 | |||||||||||||
1961 | 43.39 | 47.00 | 47.84 | 57.80 | 67.90 | 80.40 | 84.35 | 83.19 | 67.97 | 66.52 | 49.60 | 39.61 | 61.30 | |||||||||||||
1962 | 35.90 | a | 47.36 | 49.68 | 64.40 | 76.00 | 78.43 | 83.71 | 87.50 | a | 76.30 | 69.68 | 56.20 | 49.94 | 64.59 | |||||||||||
1963 | 34.81 | 52.18 | 51.74 | 65.23 | 75.13 | 83.90 | 90.77 | 82.42 | 79.27 | 73.77 | 56.90 | 41.81 | 65.66 | |||||||||||||
1964 | 44.39 | 38.55 | 44.26 | 59.03 | 72.65 | 79.00 | 90.10 | 83.71 | j | ----- | z | 65.61 | m | 49.97 | 45.06 | 58.11 | c | |||||||||
1965 | 47.90 | 41.48 | a | 37.58 | 64.63 | 72.39 | 76.47 | 86.35 | 81.84 | 66.70 | 69.55 | 59.10 | 48.68 | 62.72 | ||||||||||||
1966 | 36.90 | 38.32 | ----- | z | 59.37 | 74.81 | 81.97 | 89.90 | 81.55 | 77.17 | 64.16 | 56.43 | 42.94 | 63.96 | a | |||||||||||
1967 | 45.71 | 48.54 | 58.74 | 64.40 | 66.26 | 75.40 | 82.68 | 80.10 | 75.17 | 67.77 | 54.00 | 36.42 | 62.93 | |||||||||||||
1968 | 42.26 | 47.21 | 54.48 | 57.67 | 65.71 | 82.87 | 83.77 | 80.45 | 77.27 | 68.26 | 48.87 | 41.90 | 62.56 | |||||||||||||
1969 | 47.16 | 48.04 | 42.71 | 62.35 | m | ----- | z | 74.40 | 88.03 | 85.55 | 77.80 | 50.23 | 51.17 | 42.19 | 60.73 | b | ||||||||||
1970 | 44.03 | 52.64 | 45.23 | 56.97 | 73.45 | 79.10 | a | 85.60 | a | 85.58 | 73.63 | 57.23 | 49.83 | 47.00 | 62.52 | |||||||||||
1971 | 40.52 | 39.86 | 52.06 | 58.79 | b | 65.83 | a | 84.80 | 84.59 | b | 84.58 | 72.03 | a | 62.48 | 50.60 | 42.58 | 61.56 | |||||||||
1972 | 41.52 | 48.79 | 57.81 | 61.87 | 68.00 | 82.07 | 82.71 | 81.52 | 73.27 | 60.42 | 36.90 | 30.44 | d | 60.44 | ||||||||||||
1973 | 33.58 | 43.07 | 44.19 | 51.70 | 64.84 | 80.61 | b | 81.68 | 86.35 | 70.90 | 66.58 | 52.07 | 41.81 | 59.78 | ||||||||||||
1974 | 35.00 | 45.64 | 53.61 | 58.90 | 74.97 | 81.57 | 89.55 | 81.23 | 72.70 | 65.61 | 49.30 | 41.10 | 62.43 | |||||||||||||
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.60 | 68.29 | 46.47 | 45.00 | 58.34 | h | ||||
1976 | 43.52 | 50.83 | 49.58 | 60.53 | 67.90 | 80.90 | 87.42 | 83.65 | 72.83 | 58.03 | 48.13 | 46.00 | 62.44 | |||||||||||||
1977 | 37.94 | 48.67 | a | 49.66 | b | 60.17 | 72.35 | 83.37 | 87.16 | 80.26 | 80.00 | 66.00 | 49.87 | 45.06 | 63.37 | |||||||||||
1978 | 34.10 | 35.54 | 53.81 | 61.43 | 64.07 | a | 78.33 | 89.65 | 82.61 | 78.03 | 66.00 | 47.20 | 34.45 | 60.43 | ||||||||||||
1979 | 27.07 | a | 44.00 | 48.90 | 60.00 | 63.52 | 77.67 | 85.13 | 80.94 | 78.30 | 66.20 | a | 42.50 | 45.26 | 59.96 | |||||||||||
1980 | 33.03 | 42.31 | 45.32 | 55.10 | 64.45 | 83.40 | 89.35 | 86.19 | 77.10 | 64.19 | 52.27 | 52.39 | 62.09 | |||||||||||||
1981 | 47.74 | 49.39 | 47.26 | 67.37 | 64.90 | 82.00 | 87.65 | 80.84 | 79.07 | 62.26 | 56.57 | 44.87 | 64.16 | |||||||||||||
1982 | 40.73 | a | 41.71 | 52.68 | 60.90 | 67.10 | a | 72.50 | 85.68 | 84.19 | 72.93 | 62.58 | 47.63 | 41.94 | 60.88 | |||||||||||
1983 | 41.77 | 44.61 | 44.29 | 50.10 | 62.19 | 73.83 | 88.58 | 88.26 | 80.50 | 65.68 | 48.67 | 27.29 | 59.65 | |||||||||||||
1984 | 33.52 | 39.38 | 43.03 | 51.70 | 70.03 | 78.43 | 86.45 | 83.48 | 73.53 | 54.00 | 51.30 | 43.06 | 58.99 | |||||||||||||
1985 | 34.74 | 37.21 | 51.77 | 63.03 | 70.90 | 80.83 | 85.68 | 84.35 | 71.00 | 62.90 | 40.27 | 36.52 | 59.93 | |||||||||||||
1986 | 53.03 | 47.79 | 59.68 | 62.80 | 70.23 | 81.10 | 86.55 | 83.42 | 75.40 | 60.68 | 49.70 | 38.71 | 64.09 | |||||||||||||
1987 | 39.90 | 43.00 | 46.13 | 63.43 | 67.45 | 78.67 | 86.68 | 79.48 | 75.60 | 65.83 | a | 50.17 | 37.94 | 61.19 | ||||||||||||
1988 | 33.87 | 42.34 | 48.52 | 61.93 | 68.94 | 81.97 | 86.23 | 86.65 | 75.60 | 66.97 | 51.73 | 41.65 | 62.20 | |||||||||||||
1989 | 45.39 | 33.79 | 58.65 | 63.30 | 70.77 | 75.53 | 86.58 | 82.55 | 73.67 | 63.90 | 55.80 | 38.19 | 62.34 | |||||||||||||
1990 | 43.39 | 40.75 | 49.77 | 59.87 | 66.61 | 85.13 | 80.97 | 82.58 | 78.23 | 64.13 | 54.77 | 37.23 | 61.95 | |||||||||||||
1991 | 39.23 | 51.96 | 51.71 | 57.73 | 70.74 | 81.97 | 83.94 | 80.00 | 73.97 | 65.10 | 41.43 | 38.84 | 61.38 | |||||||||||||
1992 | 38.42 | 46.28 | 53.55 | 66.03 | 70.68 | 75.57 | 80.71 | 79.23 | 77.30 | 66.06 | 41.53 | 35.32 | 60.89 | |||||||||||||
1993 | 33.10 | 35.71 | 49.32 | 57.87 | 68.16 | 77.97 | 84.55 | 78.48 | 71.37 | 60.42 | 41.73 | 42.84 | 58.46 | |||||||||||||
1994 | 42.77 | 40.36 | 55.35 | 57.97 | 71.61 | 84.97 | 86.84 | 86.45 | 78.43 | 61.94 | 46.50 | 45.06 | 63.19 | |||||||||||||
1995 | 42.97 | 45.86 | 51.61 | 53.47 | 59.32 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.65 | g | |||||
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 85.00 | 84.40 | f | 72.97 | 64.45 | 52.33 | 47.90 | a | 64.53 | g | ||||
1997 | 40.13 | 42.00 | 58.19 | 53.83 | 69.12 | e | 79.69 | d | 87.87 | a | 80.57 | a | 75.88 | d | 62.71 | 45.96 | b | 37.32 | 61.11 | |||||||
1998 | 45.13 | 41.93 | 50.14 | b | 58.00 | 74.39 | 79.59 | c | 84.61 | h | 82.30 | d | 81.79 | a | 64.86 | c | 54.90 | 43.13 | 61.47 | a | ||||||
1999 | 47.03 | 54.32 | 57.45 | 55.67 | 67.90 | 76.97 | 86.97 | 85.30 | d | 72.13 | 68.30 | a | 65.07 | c | 46.13 | 65.27 | ||||||||||
2000 | 46.55 | 53.90 | 52.10 | 65.17 | 74.03 | 80.33 | 89.03 | 89.32 | 80.23 | 64.58 | 42.07 | b | 41.17 | a | 64.87 | |||||||||||
2001 | 42.13 | 42.93 | 49.77 | 64.21 | a | 68.39 | 83.61 | b | 90.71 | 85.84 | 80.30 | 66.77 | 54.77 | 44.42 | 64.49 | |||||||||||
2002 | 42.58 | 46.04 | 51.10 | 66.27 | 73.16 | 86.73 | 90.77 | 87.77 | 76.37 | 57.73 | a | 50.60 | 46.23 | 64.61 | ||||||||||||
2003 | 48.74 | 40.46 | 55.00 | 64.27 | 70.58 | 75.03 | 93.58 | 89.03 | a | 74.13 | 70.87 | 51.87 | 47.87 | a | 65.12 | |||||||||||
2004 | 45.94 | 41.97 | 60.13 | 60.93 | 75.94 | 78.10 | 85.39 | 80.94 | 78.63 | 66.32 | 47.63 | 47.65 | 64.13 | |||||||||||||
2005 | 46.29 | 49.29 | 52.94 | 60.50 | 72.78 | d | 81.54 | d | 93.03 | 84.87 | 82.07 | a | 67.72 | b | 57.21 | a | 43.48 | 65.98 | ||||||||
2006 | 52.52 | 45.89 | 54.23 | 67.89 | c | 76.13 | 87.93 | 89.35 | 84.42 | 71.73 | 62.23 | 55.70 | 41.33 | a | 65.78 | |||||||||||
2007 | 30.55 | 40.57 | 59.68 | 59.10 | 70.71 | 80.93 | 89.81 | 88.26 | 78.97 | 68.45 | 56.10 | 37.06 | 63.35 | |||||||||||||
2008 | 37.26 | 43.48 | 52.65 | 60.53 | 70.90 | 82.50 | 91.45 | 80.97 | 74.83 | 65.68 | 55.27 | 42.59 | b | 63.18 | ||||||||||||
2009 | 46.23 | 50.68 | 54.74 | 57.73 | 69.48 | 75.93 | 83.00 | 82.52 | 72.77 | 52.13 | 56.00 | b | 33.87 | 61.26 | ||||||||||||
2010 | 42.13 | 37.46 | 52.06 | 60.87 | 67.29 | 82.37 | 86.52 | 85.68 | 82.30 | 67.68 | 52.39 | b | 45.84 | 63.55 | ||||||||||||
2011 | 39.29 | 41.00 | 56.13 | a | 61.50 | 66.45 | 81.93 | 90.16 | 89.84 | 75.67 | 65.65 | 54.13 | 39.32 | 63.42 | ||||||||||||
2012 | 49.00 | a | 35.04 | a | 62.13 | 65.77 | 73.48 | 90.17 | 92.29 | 87.35 | 78.60 | 62.58 | 58.40 | 40.97 | 66.31 | |||||||||||
2013 | 42.42 | 41.54 | 49.45 | 54.50 | 70.58 | 84.90 | 86.03 | 85.26 | 78.07 | 60.19 | 53.52 | a | 41.19 | 62.30 | ||||||||||||
2014 | 40.97 | 38.18 | 52.94 | 61.20 | 70.45 | 80.27 | 85.71 | 84.84 | 77.70 | 66.90 | 49.10 | 42.00 | 62.52 | |||||||||||||
2015 | 43.32 | 44.21 | 56.39 | 62.93 | 62.71 | 79.43 | 84.16 | 86.32 | 83.70 | 68.55 | 50.83 | 42.03 | 63.72 | |||||||||||||
2016 | 45.39 | 47.10 | 55.06 | 58.31 | a | 66.52 | 84.80 | 91.03 | 84.81 | 81.27 | 73.55 | 57.83 | 40.19 | 65.49 | ||||||||||||
2017 | 42.39 | 52.79 | 61.61 | 61.53 | 67.97 | 84.03 | 88.29 | 81.58 | 79.88 | f | 63.39 | 58.97 | 46.52 | 64.46 | a | |||||||||||
2018 | 48.94 | 44.32 | 57.94 | 61.53 | 75.65 | 86.70 | 86.90 | 82.55 | 80.80 | 58.61 | 48.03 | 44.48 | 64.70 | |||||||||||||
2019 | 43.71 | 41.61 | 46.74 | 62.43 | 63.10 | 78.07 | 89.13 | a | 87.61 | 84.10 | 57.71 | 50.47 | 45.84 | 62.54 | ||||||||||||
2020 | 46.65 | 40.86 | 55.39 | 60.83 | 72.65 | 86.60 | 89.39 | 90.47 | a | 78.77 | 64.68 | 58.83 | 43.42 | 65.71 | ||||||||||||
2021 | 43.29 | 37.11 | 52.00 | 59.87 | 67.32 | 85.20 | 89.35 | 90.32 | 84.37 | 69.61 | 61.10 | 53.42 | 66.08 | |||||||||||||
2022 | 46.03 | 42.18 | 52.71 | 64.67 | 73.03 | 85.50 | 91.84 | 87.97 | 83.60 | 68.38 | g | 50.00 | 41.61 | 65.38 | a | |||||||||||
2023 | 32.58 | 41.71 | 49.81 | 63.57 | 71.87 | 76.40 | 88.52 | 87.94 | 83.41 | a | 67.94 | 57.47 | 48.87 | 64.17 | ||||||||||||
2024 | 39.90 | 52.48 | 53.41 | n | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.19 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 41.64 | 44.29 | 51.49 | 60.26 | 69.50 | 80.91 | 87.05 | 84.34 | 76.91 | 64.78 | 51.46 | 42.90 | 62.90 | |||||||||||||
S.D. | 5.52 | 5.37 | 5.08 | 4.13 | 3.79 | 3.93 | 2.95 | 2.90 | 3.95 | 4.61 | 5.43 | 4.90 | 1.95 | |||||||||||||
SKEW | -0.41 | 0.17 | -0.17 | -0.40 | -0.28 | -0.02 | 0.01 | 0.10 | -0.13 | -0.64 | -0.15 | -0.41 | -0.12 | |||||||||||||
MAX | 53.03 | 57.75 | 62.13 | 68.53 | 76.13 | 90.17 | 93.58 | 90.47 | 84.37 | 75.32 | 65.07 | 53.42 | 66.66 | |||||||||||||
MIN | 27.07 | 32.59 | 37.58 | 50.10 | 59.32 | 72.50 | 80.71 | 78.48 | 66.70 | 50.23 | 36.90 | 27.29 | 58.46 | |||||||||||||
YRS | 74 | 73 | 71 | 71 | 72 | 72 | 72 | 72 | 73 | 73 | 75 | 75 | 64 |