YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 80.40 | e | 86.84 | 81.94 | 71.70 | 57.58 | 40.20 | 32.16 | 64.40 | e | ||||||
1958 | 27.71 | 23.64 | 41.16 | 60.03 | 73.94 | 74.77 | 81.77 | 83.26 | 74.27 | 64.94 | 45.87 | 24.58 | 56.33 | |||||||||||||
1959 | 20.29 | 27.57 | 43.87 | 59.63 | 73.71 | 81.60 | 84.26 | 84.61 | 73.80 | 53.48 | 34.40 | 37.03 | 56.19 | |||||||||||||
1960 | 26.10 | 30.17 | 34.58 | 59.10 | 70.45 | 77.60 | 84.52 | 84.52 | 74.77 | 62.87 | 46.13 | 29.48 | 56.69 | |||||||||||||
1961 | 26.84 | 38.07 | 44.19 | 51.97 | 70.39 | 81.83 | 84.26 | 85.35 | 72.60 | 64.52 | 43.17 | 26.16 | 57.45 | |||||||||||||
1962 | 21.61 | 24.57 | 38.74 | 56.60 | 73.48 | 78.90 | 81.32 | 82.81 | 71.20 | 64.97 | 44.79 | a | 30.00 | 55.75 | ||||||||||||
1963 | 15.06 | 25.75 | 45.77 | 62.13 | 69.61 | 83.73 | 88.26 | 82.35 | 75.83 | 72.26 | 49.67 | 20.42 | 57.57 | |||||||||||||
1964 | 32.13 | 37.59 | 40.39 | 60.17 | 76.55 | 81.80 | 90.94 | 83.48 | 72.10 | 61.32 | 46.57 | 24.16 | 58.93 | |||||||||||||
1965 | 22.42 | 25.64 | 31.19 | 52.47 | 73.55 | 78.40 | 82.77 | 80.23 | 64.87 | 63.97 | a | 42.97 | 34.97 | 54.45 | ||||||||||||
1966 | 16.71 | 28.68 | 46.13 | 53.13 | 67.87 | 82.70 | 88.06 | 80.35 | 73.47 | 62.45 | 41.33 | 28.45 | 55.78 | |||||||||||||
1967 | 27.65 | 23.57 | 41.65 | 56.80 | 66.13 | 78.80 | 82.03 | 80.74 | 73.80 | 59.65 | 40.10 | 32.65 | 55.30 | |||||||||||||
1968 | 25.77 | 26.86 | 53.16 | 62.80 | 67.10 | 78.50 | 83.35 | 82.81 | 72.63 | 61.61 | 43.03 | 27.74 | 57.11 | |||||||||||||
1969 | 20.32 | 30.71 | 36.97 | a | 61.40 | 73.16 | 72.70 | 83.48 | 87.19 | 76.13 | 57.13 | 43.17 | 29.13 | 55.96 | ||||||||||||
1970 | 17.53 | a | 29.93 | 37.03 | 58.63 | 71.29 | 81.70 | 86.32 | 84.26 | 71.53 | 60.61 | 40.43 | 27.94 | 55.60 | ||||||||||||
1971 | 17.23 | 27.68 | 36.68 | 61.27 | 68.87 | 83.41 | a | 80.23 | 81.39 | 74.97 | 65.26 | 42.60 | 28.32 | 55.66 | ||||||||||||
1972 | 20.55 | 23.59 | 36.03 | 53.90 | 75.16 | 80.23 | 80.84 | 80.71 | 70.80 | 56.06 | 38.80 | 22.55 | 53.27 | |||||||||||||
1973 | 27.61 | 32.00 | 51.03 | 56.24 | a | 67.13 | 81.80 | 85.68 | 85.68 | 72.66 | a | 69.23 | 45.53 | 27.39 | 58.50 | |||||||||||
1974 | 27.10 | 31.04 | a | 40.74 | 60.07 | 68.13 | 79.00 | 90.39 | 80.77 | 70.87 | 63.00 | a | 45.83 | 35.29 | 57.69 | |||||||||||
1975 | 27.13 | 29.25 | 35.55 | 50.43 | 74.45 | 79.73 | 88.19 | 83.10 | 70.17 | 67.55 | 50.23 | 28.84 | 57.05 | |||||||||||||
1976 | 24.10 | 38.62 | 44.00 | 64.53 | 71.81 | 82.83 | 87.84 | 83.68 | 75.47 | 56.90 | 39.17 | 21.65 | 57.55 | |||||||||||||
1977 | 12.13 | a | 32.46 | 48.74 | 66.67 | 81.39 | 79.10 | a | 86.26 | 78.67 | a | 71.62 | a | 60.81 | 41.90 | 24.55 | 57.02 | |||||||||
1978 | 19.19 | 24.19 | b | 41.26 | 58.03 | 74.27 | a | 79.17 | 81.10 | 83.32 | 79.20 | 61.23 | 42.10 | 24.87 | 55.66 | |||||||||||
1979 | 13.13 | 22.36 | 38.52 | 54.30 | 67.74 | 78.40 | 83.42 | 79.32 | 75.07 | 58.73 | a | 41.53 | 35.68 | 54.02 | ||||||||||||
1980 | 23.55 | 26.76 | 38.39 | 63.03 | 76.32 | 80.00 | 87.19 | 81.77 | 72.37 | 56.10 | 47.37 | 29.26 | 56.84 | |||||||||||||
1981 | 31.10 | 34.07 | 48.55 | 61.50 | 70.16 | 78.47 | 82.97 | 80.61 | 72.07 | 57.71 | 48.73 | 27.48 | 57.78 | |||||||||||||
1982 | 15.10 | 27.43 | 38.19 | 54.90 | 74.23 | a | 75.07 | 86.97 | a | 82.10 | a | 71.17 | 61.19 | 41.13 | 34.48 | 55.16 | ||||||||||
1983 | 29.03 | 33.74 | a | 41.73 | a | 53.69 | a | 65.74 | 80.80 | 87.41 | b | 87.00 | 74.13 | 59.90 | a | 42.07 | 17.69 | b | 56.08 | |||||||
1984 | 24.23 | 37.93 | a | 37.10 | a | 60.87 | 67.90 | a | 80.57 | 83.39 | 84.27 | a | 70.63 | 62.23 | 44.20 | 29.77 | 56.92 | |||||||||
1985 | 22.29 | 26.71 | 47.68 | 64.80 | 75.97 | a | 76.73 | 84.26 | 78.29 | 71.23 | 60.13 | 35.57 | 19.45 | 55.26 | ||||||||||||
1986 | 27.68 | 26.61 | 46.29 | 64.33 | 73.03 | 80.30 | 82.87 | 77.94 | 70.37 | 60.19 | 40.20 | 31.58 | 56.78 | |||||||||||||
1987 | 31.57 | a | 41.18 | 49.26 | 68.77 | 76.52 | 84.73 | 84.58 | 79.10 | 74.77 | 55.06 | 47.43 | 32.48 | 60.45 | ||||||||||||
1988 | 22.65 | 25.10 | 44.61 | 61.33 | 78.65 | 85.33 | 89.10 | 85.65 | 74.90 | 55.97 | 42.97 | 29.94 | 58.02 | |||||||||||||
1989 | 32.70 | a | 22.14 | 36.29 | 57.17 | 70.35 | 77.10 | a | 85.19 | 80.67 | a | 72.63 | 64.19 | 38.37 | 20.90 | 54.81 | ||||||||||
1990 | 34.94 | 34.54 | 46.87 | 60.57 | 67.90 | 79.67 | 81.03 | 79.35 | 73.60 | 59.52 | 49.77 | 26.87 | a | 57.88 | ||||||||||||
1991 | 22.81 | 35.71 | 45.06 | 61.27 | 70.77 | 82.33 | 80.90 | 79.03 | 69.73 | 59.13 | 34.07 | 30.52 | 55.95 | |||||||||||||
1992 | 29.52 | 36.14 | 42.71 | 53.07 | 72.77 | 75.07 | 74.94 | 76.55 | 69.47 | 59.52 | 37.86 | a | 29.90 | 54.79 | ||||||||||||
1993 | 25.42 | 27.93 | 40.00 | a | 54.57 | 64.48 | 70.40 | 77.03 | 77.35 | 61.80 | 57.23 | 37.90 | 29.23 | 51.94 | ||||||||||||
1994 | 15.32 | 24.21 | 45.20 | a | 58.03 | 72.00 | 78.47 | 77.77 | 75.58 | 71.53 | 59.84 | 45.87 | 32.35 | 54.68 | ||||||||||||
1995 | 24.94 | 27.89 | 39.84 | 51.90 | 67.39 | 82.77 | 83.13 | 84.19 | 71.43 | 58.81 | 33.93 | 26.63 | a | 54.40 | ||||||||||||
1996 | 20.84 | 28.69 | 35.16 | 54.57 | 63.48 | 74.07 | 75.26 | 78.81 | 65.43 | 59.58 | 32.90 | 22.52 | 50.94 | |||||||||||||
1997 | 19.94 | 31.56 | a | 41.19 | 57.13 | 65.10 | a | 81.13 | 80.55 | 77.90 | 74.03 | a | 62.13 | 37.83 | 34.77 | 55.27 | ||||||||||
1998 | 28.35 | 40.89 | a | 42.55 | 64.67 | 79.23 | 75.70 | 83.57 | a | 82.90 | 80.37 | 61.87 | 47.53 | 37.42 | 60.42 | |||||||||||
1999 | 21.58 | 38.18 | 46.39 | 61.60 | 72.48 | 78.77 | 86.90 | 80.71 | 73.47 | 63.07 | a | 54.20 | 35.87 | 59.43 | ||||||||||||
2000 | 27.55 | 38.03 | 53.10 | 60.13 | 71.52 | 76.77 | 82.68 | 82.42 | 73.50 | 66.19 | 40.62 | a | 17.26 | 57.48 | ||||||||||||
2001 | 30.68 | 25.46 | 40.19 | 60.80 | 70.65 | 78.60 | 85.16 | 84.32 | 71.90 | 60.00 | 57.33 | 37.13 | 58.52 | |||||||||||||
2002 | 35.29 | 38.57 | 36.06 | 57.30 | 66.65 | 81.03 | 87.00 | 80.74 | 75.90 | 52.74 | 43.33 | 36.19 | 57.57 | |||||||||||||
2003 | 26.06 | 28.07 | a | 44.29 | 59.83 | 70.26 | 78.97 | 82.61 | 87.23 | 74.47 | 62.61 | 43.17 | 34.10 | 57.64 | ||||||||||||
2004 | 21.45 | 32.41 | 43.58 | 62.90 | 67.26 | 76.47 | 81.35 | 76.65 | 78.27 | 61.35 | 47.07 | 31.77 | 56.71 | |||||||||||||
2005 | 25.13 | 35.30 | a | 42.77 | a | 64.03 | 65.81 | 82.73 | 85.16 | 81.94 | 78.13 | 63.90 | b | 47.07 | 27.42 | 58.28 | ||||||||||
2006 | 36.71 | 31.89 | 43.23 | 64.93 | 71.42 | 81.40 | 89.16 | 82.23 | a | 69.83 | 57.45 | 46.53 | 38.40 | a | 59.43 | |||||||||||
2007 | 29.65 | 23.54 | 48.61 | 58.53 | 75.65 | 82.10 | 84.03 | 80.93 | a | 74.93 | 64.13 | 42.80 | 25.68 | 57.55 | ||||||||||||
2008 | 24.00 | a | 26.07 | 38.19 | 55.10 | 67.61 | 77.23 | 82.77 | 81.48 | 73.67 | 61.00 | 43.43 | 25.10 | 54.64 | ||||||||||||
2009 | 15.84 | 29.93 | 40.61 | 56.50 | 67.97 | 75.03 | 75.71 | 76.90 | a | 75.00 | 49.23 | 50.27 | 24.81 | 53.15 | ||||||||||||
2010 | 21.48 | 29.04 | 49.81 | 65.03 | 70.06 | 75.50 | 82.81 | 83.06 | 68.20 | 63.58 | 43.03 | 22.58 | 56.18 | |||||||||||||
2011 | 18.57 | a | 27.11 | 37.06 | 52.79 | a | 65.58 | 76.14 | a | 85.13 | a | 80.39 | 69.90 | a | 63.26 | 46.17 | 33.19 | 54.61 | ||||||||
2012 | 29.65 | 35.29 | a | 56.58 | 58.20 | 72.45 | 79.57 | 87.16 | 80.45 | 73.63 | 55.84 | 45.30 | 30.94 | 58.75 | ||||||||||||
2013 | 25.16 | 25.82 | 33.39 | 44.17 | a | 66.77 | a | 74.30 | 81.39 | 81.39 | 75.10 | 56.90 | 39.47 | 19.87 | a | 51.98 | ||||||||||
2014 | 17.06 | 17.29 | 31.90 | a | 50.53 | 66.42 | 77.53 | 77.87 | 79.71 | 70.37 | 57.39 | 33.20 | 29.55 | 50.73 | ||||||||||||
2015 | 23.52 | 18.36 | 42.87 | 59.10 | 67.87 | 76.93 | a | 80.90 | 77.06 | 75.97 | 61.10 | 49.30 | 36.32 | 55.78 | ||||||||||||
2016 | 23.06 | 31.34 | 48.71 | 54.63 | 69.17 | b | 78.50 | 81.55 | 80.10 | 72.53 | 61.32 | 52.80 | 26.81 | 56.71 | ||||||||||||
2017 | 26.19 | 37.61 | 39.81 | 58.07 | 64.97 | a | 77.97 | 81.74 | 75.28 | b | 75.03 | 60.03 | 39.83 | 25.27 | a | 55.15 | ||||||||||
2018 | 23.23 | 25.32 | 41.19 | 45.90 | a | 77.06 | 79.47 | 82.90 | 80.39 | 72.03 | 51.94 | 34.10 | 31.60 | a | 53.76 | |||||||||||
2019 | 22.68 | 23.86 | 37.52 | 54.23 | 63.21 | b | 77.27 | 82.32 | 78.58 | 74.20 | 54.71 | 35.90 | 30.48 | 52.91 | ||||||||||||
2020 | 28.23 | 32.31 | 45.03 | 54.69 | a | 67.74 | 81.55 | a | 83.81 | 81.10 | 69.17 | 50.74 | 48.86 | a | 33.45 | 56.39 | ||||||||||
2021 | 28.19 | 20.79 | 50.84 | 56.00 | 67.00 | b | 84.90 | 83.00 | 80.47 | a | 75.27 | 65.03 | a | 44.00 | 31.90 | 57.28 | ||||||||||
2022 | 19.58 | 25.43 | 36.29 | n | 50.50 | h | 69.03 | a | 79.47 | 82.81 | 79.68 | 73.20 | 59.84 | 43.27 | 23.80 | a | 55.61 | b | ||||||||
2023 | 27.81 | 29.32 | 38.13 | a | 54.10 | 71.77 | a | 83.67 | 81.58 | 80.50 | a | 75.48 | a | 59.90 | 44.82 | b | 38.48 | 57.13 | ||||||||
2024 | 25.61 | 42.52 | 47.42 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.52 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 24.24 | 29.73 | 42.29 | 58.09 | 70.52 | 79.22 | 83.55 | 81.24 | 72.84 | 60.29 | 43.15 | 29.03 | 56.18 | |||||||||||||
S.D. | 5.41 | 5.74 | 5.42 | 4.83 | 4.05 | 3.04 | 3.42 | 2.76 | 3.10 | 4.17 | 5.12 | 5.26 | 2.06 | |||||||||||||
SKEW | -0.05 | 0.28 | 0.29 | -0.35 | 0.44 | -0.30 | -0.28 | 0.08 | -0.70 | -0.11 | 0.09 | -0.20 | -0.47 | |||||||||||||
MAX | 36.71 | 42.52 | 56.58 | 68.77 | 81.39 | 85.33 | 90.94 | 87.23 | 80.37 | 72.26 | 57.33 | 38.48 | 60.45 | |||||||||||||
MIN | 12.13 | 17.29 | 31.19 | 44.17 | 63.21 | 70.40 | 74.94 | 75.28 | 61.80 | 49.23 | 32.90 | 17.26 | 50.73 | |||||||||||||
YRS | 67 | 67 | 66 | 65 | 66 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 65 |