YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1950 | 20.84 | 28.46 | 32.87 | 45.67 | 68.00 | 81.50 | 82.58 | 81.65 | 75.13 | 65.65 | 38.10 | 22.73 | a | 53.60 | ||||||||||||
1951 | 21.39 | 27.57 | 33.79 | b | 52.63 | 74.81 | 75.40 | 82.33 | a | 76.55 | 65.23 | 56.77 | 34.53 | 24.81 | 52.15 | |||||||||||
1952 | 22.84 | 31.79 | 34.00 | 60.97 | 69.35 | 78.43 | 82.42 | 77.90 | 73.80 | 55.84 | 44.53 | 30.61 | 55.21 | |||||||||||||
1953 | 25.23 | 27.29 | 39.16 | 49.90 | 69.45 | 79.33 | 81.87 | 82.52 | 72.87 | 69.35 | 48.27 | 30.77 | 56.33 | |||||||||||||
1954 | 19.84 | 38.89 | 36.61 | 56.50 | 61.48 | 79.97 | 81.50 | a | 80.29 | 68.07 | 55.77 | 45.23 | 30.29 | 54.54 | ||||||||||||
1955 | 21.90 | 24.43 | 35.87 | 64.03 | 75.03 | 78.47 | 88.03 | 85.74 | 73.03 | 61.03 | 33.63 | 20.61 | 55.15 | |||||||||||||
1956 | 22.97 | 25.41 | 33.94 | 51.97 | 68.20 | a | 82.20 | 78.03 | 79.71 | 69.90 | 66.84 | 41.53 | 30.45 | 54.26 | ||||||||||||
1957 | 17.71 | 28.25 | 38.03 | 56.60 | 67.29 | 76.20 | 84.61 | 78.94 | 68.23 | 57.23 | 38.80 | 30.87 | 53.56 | |||||||||||||
1958 | 27.08 | e | ----- | z | 42.30 | a | 57.63 | 70.58 | 72.90 | 79.06 | 80.06 | 71.90 | 62.06 | 43.77 | 23.65 | 57.36 | a | |||||||||
1959 | 19.19 | 27.64 | 43.45 | 57.33 | 70.71 | 79.03 | 84.26 | 82.58 | 72.23 | 51.90 | 32.76 | a | 35.74 | 54.74 | ||||||||||||
1960 | 24.55 | 27.34 | 32.29 | 56.33 | 68.13 | 74.60 | 83.35 | 83.26 | 71.80 | 61.29 | 43.63 | 27.26 | 54.49 | |||||||||||||
1961 | 23.52 | 36.18 | 43.87 | 49.17 | 67.81 | 79.57 | 81.10 | 83.81 | 69.60 | 61.77 | 41.00 | 25.39 | 55.23 | |||||||||||||
1962 | 18.06 | 22.04 | 37.90 | 54.67 | 70.48 | 77.07 | 77.97 | 79.52 | 68.63 | 61.90 | 43.47 | 28.19 | 53.33 | |||||||||||||
1963 | 13.26 | 23.36 | 44.45 | 60.37 | 66.19 | 81.83 | 85.13 | 80.35 | 73.27 | 70.61 | 47.97 | 18.03 | 55.40 | |||||||||||||
1964 | 29.97 | 32.86 | 36.26 | 57.73 | 73.26 | 79.80 | 88.13 | 78.39 | 68.70 | 58.35 | 43.97 | 22.77 | 55.85 | |||||||||||||
1965 | 18.52 | 22.93 | 29.29 | 51.13 | 69.68 | 76.30 | 79.39 | 78.81 | 60.67 | 61.03 | 41.10 | 32.94 | 51.81 | |||||||||||||
1966 | 11.94 | 25.89 | 44.35 | 50.77 | 64.77 | 79.57 | 86.52 | 77.74 | 71.90 | 58.71 | 38.97 | 25.90 | 53.09 | |||||||||||||
1967 | 25.39 | 20.61 | 38.48 | 53.63 | 65.00 | 76.07 | 79.94 | 77.19 | 73.13 | 57.58 | 38.67 | 29.97 | 52.97 | |||||||||||||
1968 | 23.94 | 24.93 | 49.06 | 59.63 | 64.19 | 76.83 | 79.00 | 79.58 | 70.93 | 60.13 | 40.50 | 24.06 | 54.40 | |||||||||||||
1969 | 18.52 | 29.75 | 35.00 | 59.03 | 70.90 | 70.13 | 81.42 | 86.00 | 73.37 | 53.94 | 40.33 | 28.13 | 53.88 | |||||||||||||
1970 | 15.16 | 26.82 | 35.55 | b | 55.87 | 67.03 | 80.73 | 84.35 | 81.42 | 70.53 | 57.74 | 38.60 | 26.40 | a | 53.35 | |||||||||||
1971 | 14.97 | 26.32 | 35.97 | 58.30 | 66.65 | 81.60 | 78.77 | 79.16 | 72.03 | 61.26 | 40.40 | 25.94 | 53.45 | |||||||||||||
1972 | 17.07 | d | 21.21 | 35.10 | 51.30 | 72.77 | 77.77 | 78.68 | 78.74 | 68.33 | 53.13 | 37.93 | a | 20.16 | 51.02 | |||||||||||
1973 | 25.61 | 29.96 | 48.61 | 54.60 | 64.87 | 79.20 | 82.26 | 81.94 | 68.60 | 63.97 | 42.07 | 24.77 | 55.54 | |||||||||||||
1974 | 21.77 | 27.61 | 37.39 | 56.93 | 64.32 | 75.63 | 86.97 | 78.03 | 67.43 | 60.94 | 42.00 | 31.71 | 54.23 | |||||||||||||
1975 | 24.23 | 26.11 | 32.94 | 48.67 | 73.42 | 77.33 | 86.03 | 80.45 | 67.20 | 63.35 | 46.00 | 26.48 | 54.35 | |||||||||||||
1976 | 19.27 | a | 35.59 | 40.03 | 63.07 | 70.74 | 83.10 | 88.06 | 84.87 | 73.80 | 54.97 | 35.73 | 19.84 | 55.76 | ||||||||||||
1977 | 9.81 | 30.86 | 46.61 | 64.53 | 79.39 | 78.47 | 84.06 | 76.68 | 69.87 | 58.84 | 40.37 | 22.71 | 55.18 | |||||||||||||
1978 | 17.16 | 23.68 | 41.29 | 54.43 | 72.74 | 76.67 | 79.97 | 81.00 | 75.57 | 59.45 | 39.70 | 21.90 | 53.63 | |||||||||||||
1979 | 11.29 | 20.54 | 36.03 | 53.17 | 64.48 | 77.73 | 82.00 | 76.26 | 72.10 | 55.87 | 39.47 | 32.58 | 51.79 | |||||||||||||
1980 | 22.35 | 25.24 | 36.74 | 61.97 | 74.71 | 77.57 | 84.87 | 80.35 | 68.20 | 53.94 | 43.73 | 25.90 | 54.63 | |||||||||||||
1981 | 28.26 | 30.26 | a | 46.77 | 58.33 | 68.71 | 76.37 | 81.65 | 79.16 | 70.17 | 55.00 | 47.10 | 25.65 | 55.62 | ||||||||||||
1982 | 11.00 | 25.78 | a | 35.77 | 53.21 | a | 72.90 | 73.38 | a | 84.81 | 79.77 | 68.52 | a | 58.23 | 37.97 | 33.03 | 52.86 | |||||||||
1983 | 26.00 | 32.25 | 41.23 | 50.97 | 64.32 | 77.87 | 86.06 | 85.00 | 71.53 | 57.19 | 40.07 | a | 12.90 | 53.78 | ||||||||||||
1984 | 21.10 | 35.90 | 34.61 | 58.73 | 67.16 | 78.23 | 82.48 | 83.06 | 66.52 | a | 59.43 | a | 42.52 | a | 26.93 | a | 54.72 | |||||||||
1985 | 20.58 | 25.11 | 44.90 | 62.03 | a | 73.32 | 74.87 | 82.45 | 75.74 | 68.30 | 58.71 | 33.37 | 17.52 | 53.08 | ||||||||||||
1986 | 25.84 | 24.22 | a | 44.13 | 60.83 | 72.61 | 80.37 | 84.68 | 77.81 | 68.90 | 58.84 | 37.57 | 30.87 | 55.56 | ||||||||||||
1987 | 29.29 | 41.82 | 48.16 | 68.53 | 75.35 | 84.90 | 87.23 | 79.55 | 74.13 | 53.35 | 45.97 | 32.13 | a | 60.04 | ||||||||||||
1988 | 20.19 | 23.79 | 42.13 | 60.79 | a | 78.65 | 86.50 | 90.19 | 84.29 | 72.97 | a | 54.58 | 40.50 | 28.52 | 56.93 | |||||||||||
1989 | 30.45 | 19.29 | 35.45 | 55.47 | 70.94 | 78.47 | 86.84 | 81.39 | 73.03 | 62.13 | 36.33 | 18.26 | 54.00 | |||||||||||||
1990 | 35.52 | 33.71 | 45.55 | 58.17 | 68.77 | 80.20 | 81.55 | 81.61 | 73.93 | 59.16 | 47.20 | 25.71 | 57.59 | |||||||||||||
1991 | 21.32 | 35.46 | 43.32 | 61.07 | 71.81 | 83.27 | 82.10 | 83.52 | 68.77 | 57.00 | 32.20 | 29.10 | 55.74 | |||||||||||||
1992 | 29.29 | 35.32 | a | 41.47 | a | 51.21 | a | 73.58 | 77.40 | 75.39 | 76.06 | 70.93 | 58.84 | 36.73 | 28.65 | 54.57 | ||||||||||
1993 | 23.26 | 26.46 | 40.16 | 54.17 | 66.87 | 74.30 | 79.94 | 81.58 | 65.00 | 57.45 | 37.30 | 27.48 | 52.83 | |||||||||||||
1994 | 14.10 | 20.00 | b | 42.87 | 56.17 | 73.29 | 81.37 | 80.90 | 79.06 | 74.10 | 61.77 | 45.83 | 33.45 | 55.24 | ||||||||||||
1995 | 24.71 | 27.43 | 42.74 | 49.20 | 68.20 | a | 83.07 | 82.81 | 83.19 | 70.93 | 57.84 | 33.54 | b | 24.94 | 54.05 | |||||||||||
1996 | 19.94 | 25.55 | 32.53 | a | 51.67 | 67.58 | 78.23 | 80.52 | 82.94 | 72.37 | 59.39 | 33.13 | 22.24 | b | 52.17 | |||||||||||
1997 | 19.87 | a | 30.75 | 40.53 | a | 56.38 | a | 67.43 | a | 83.38 | a | 82.84 | 79.43 | a | 74.93 | 63.00 | 37.10 | a | 32.80 | a | 55.70 | |||||
1998 | 28.03 | 40.71 | 41.63 | a | 64.47 | 81.18 | c | 77.93 | 85.60 | a | 84.50 | a | 80.85 | c | 62.26 | 46.17 | a | 35.42 | 60.73 | |||||||
1999 | 22.00 | a | 37.78 | a | 47.53 | a | 63.04 | b | 73.17 | a | 79.50 | 88.63 | a | 81.71 | 73.90 | 62.35 | 52.48 | a | 34.41 | b | 59.71 | |||||
2000 | 25.97 | 37.62 | 52.16 | 58.57 | 74.23 | 78.17 | 84.42 | 83.84 | 74.40 | 64.24 | b | 39.70 | 17.19 | 57.54 | ||||||||||||
2001 | 31.26 | 24.37 | a | 40.13 | 61.00 | 70.44 | d | 80.50 | 87.37 | d | 84.81 | 73.00 | b | 59.76 | b | 55.83 | 34.94 | 58.62 | ||||||||
2002 | 31.39 | 35.79 | 32.68 | 52.40 | 61.42 | 76.80 | 84.29 | 81.70 | a | 74.10 | a | 50.13 | 39.93 | 33.61 | 54.52 | |||||||||||
2003 | 23.17 | a | 24.79 | 39.16 | 57.07 | a | 67.19 | ----- | z | 83.00 | 84.58 | 74.33 | 61.68 | 40.21 | a | 32.32 | 53.41 | a | ||||||||
2004 | 17.65 | 29.00 | 44.23 | 62.14 | a | 66.03 | a | 75.40 | 82.55 | 75.87 | a | 79.73 | 61.19 | 45.93 | a | 29.79 | b | 55.79 | ||||||||
2005 | 22.77 | 34.57 | 41.80 | a | 63.40 | 65.38 | b | 83.40 | 85.10 | 80.03 | 75.23 | 63.63 | a | ----- | z | 26.23 | 58.32 | a | ||||||||
2006 | 34.76 | b | 28.89 | 42.10 | 63.30 | 69.23 | a | 80.24 | a | 87.55 | 81.10 | 68.43 | 56.50 | a | 45.00 | a | 36.71 | 57.82 | ||||||||
2007 | 27.84 | 20.89 | 45.81 | 56.47 | 72.65 | 80.97 | 83.81 | 80.35 | 74.77 | 61.87 | a | 42.13 | 23.03 | 55.88 | ||||||||||||
2008 | 22.58 | 23.97 | 36.87 | 52.30 | 66.16 | 76.50 | 82.39 | 81.03 | 72.41 | a | 59.13 | 42.76 | a | 23.80 | a | 53.32 | ||||||||||
2009 | 17.23 | 30.79 | 41.16 | 57.40 | 69.35 | 77.30 | 76.87 | 77.71 | 77.67 | 49.81 | 50.63 | 24.55 | 54.21 | |||||||||||||
2010 | 21.76 | b | 30.39 | 51.71 | 65.17 | 71.23 | 76.80 | 83.68 | 83.45 | 69.00 | 63.52 | 43.10 | a | 23.48 | 56.94 | |||||||||||
2011 | 17.83 | a | 25.79 | 36.87 | a | 53.88 | d | 66.19 | 76.87 | 86.29 | 82.06 | 71.43 | 65.58 | 46.97 | 33.97 | 55.31 | ||||||||||
2012 | 31.61 | 35.69 | 56.35 | 59.40 | 73.06 | 79.45 | a | 87.32 | 80.84 | 76.07 | 58.81 | 45.67 | 31.74 | 59.67 | ||||||||||||
2013 | 24.00 | 27.54 | 34.35 | 46.71 | b | 66.52 | b | 75.37 | 81.65 | 81.35 | 74.63 | 57.39 | 41.11 | b | 19.29 | 52.49 | ||||||||||
2014 | 14.06 | 18.07 | 33.10 | 51.33 | 67.31 | b | 77.50 | 79.32 | 80.65 | 71.13 | 57.61 | 32.90 | 30.35 | 51.11 | ||||||||||||
2015 | 24.37 | a | 18.00 | 43.29 | 57.33 | 67.06 | 76.73 | 80.58 | 77.61 | 76.60 | 60.65 | 50.80 | 36.55 | 55.80 | ||||||||||||
2016 | 23.48 | 31.83 | 47.35 | 55.83 | 70.06 | 77.63 | 82.13 | 81.00 | 72.43 | 61.23 | 51.60 | 26.43 | a | 56.75 | ||||||||||||
2017 | 27.39 | 37.82 | 41.00 | 54.73 | 65.60 | a | 78.20 | 81.23 | 74.45 | 74.79 | a | 59.74 | 40.90 | 25.39 | 55.10 | |||||||||||
2018 | 24.29 | 23.82 | 40.39 | 44.60 | 77.30 | a | 78.80 | 81.29 | 80.23 | 72.00 | 51.90 | 34.10 | 31.81 | 53.38 | ||||||||||||
2019 | 22.55 | 20.82 | 36.65 | 53.50 | 62.47 | a | 77.48 | a | 81.23 | 77.48 | 72.23 | 53.03 | 34.50 | 32.90 | 52.07 | |||||||||||
2020 | 29.87 | 33.83 | 44.73 | a | 54.79 | a | 66.35 | 80.77 | 83.30 | a | 80.26 | 69.30 | 50.84 | 48.37 | 33.77 | a | 56.35 | |||||||||
2021 | 29.71 | 20.64 | 50.23 | 55.23 | 67.84 | 83.63 | 83.97 | 82.00 | 75.53 | 63.48 | 45.53 | 33.35 | 57.60 | |||||||||||||
2022 | 19.73 | a | 26.43 | 40.61 | 47.50 | 69.77 | 79.63 | 82.55 | 79.58 | 73.60 | 62.13 | 43.73 | 25.87 | 54.26 | ||||||||||||
2023 | 29.20 | a | 30.39 | 37.39 | 51.80 | 71.94 | 82.27 | 82.58 | 81.19 | 75.70 | 60.74 | 46.89 | b | 39.23 | a | 57.44 | ||||||||||
2024 | 26.61 | c | 41.66 | 45.90 | 55.79 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.06 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 22.63 | 28.44 | 40.46 | 56.20 | 69.56 | 78.64 | 83.02 | 80.57 | 71.82 | 59.22 | 41.62 | 27.67 | 54.93 | |||||||||||||
S.D. | 5.58 | 5.85 | 5.49 | 5.02 | 4.08 | 2.92 | 3.01 | 2.60 | 3.38 | 4.17 | 5.19 | 5.41 | 2.07 | |||||||||||||
SKEW | -0.09 | 0.40 | 0.41 | 0.00 | 0.45 | 0.10 | 0.04 | -0.03 | -0.27 | -0.00 | 0.23 | -0.28 | 0.64 | |||||||||||||
MAX | 35.52 | 41.82 | 56.35 | 68.53 | 81.18 | 86.50 | 90.19 | 86.00 | 80.85 | 70.61 | 55.83 | 39.23 | 60.73 | |||||||||||||
MIN | 9.81 | 18.00 | 29.29 | 44.60 | 61.42 | 70.13 | 75.39 | 74.45 | 60.67 | 49.81 | 32.20 | 12.90 | 51.02 | |||||||||||||
YRS | 75 | 74 | 75 | 74 | 74 | 73 | 74 | 74 | 74 | 74 | 73 | 74 | 71 |