YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.17 | ----- | z | 30.17 | k | |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 79.83 | x | 57.45 | 44.97 | 29.23 | 43.88 | i | |||
1953 | 22.35 | 26.39 | 38.68 | 50.37 | 68.61 | 79.60 | 82.32 | 83.06 | 73.47 | 67.58 | 46.33 | 27.03 | 55.48 | |||||||||||||
1954 | 14.84 | 37.32 | 35.00 | 55.87 | 64.03 | 78.80 | 84.65 | 80.35 | 68.40 | 55.55 | 47.17 | 29.58 | 54.30 | |||||||||||||
1955 | 22.19 | 21.75 | 35.45 | 66.70 | 76.48 | 77.63 | 87.48 | 84.52 | 73.00 | 61.68 | 31.70 | 16.97 | 54.63 | |||||||||||||
1956 | 18.19 | 21.86 | 33.39 | 50.93 | 68.65 | 83.90 | 79.61 | 80.74 | 70.73 | 67.58 | 40.50 | 32.23 | 54.03 | |||||||||||||
1957 | 18.29 | 29.50 | 39.77 | 56.13 | 65.77 | 75.93 | 87.29 | 78.58 | 67.97 | 55.71 | 38.97 | 32.65 | 53.88 | |||||||||||||
1958 | 27.81 | 23.00 | 38.61 | 57.63 | 74.00 | 72.90 | 79.32 | 84.06 | 73.17 | 63.32 | 43.27 | 23.42 | 55.04 | |||||||||||||
1959 | 18.10 | 25.07 | 44.90 | 58.63 | 70.03 | 82.73 | 87.84 | 85.48 | 73.23 | 51.84 | 32.03 | 36.90 | 55.57 | |||||||||||||
1960 | 21.10 | 24.52 | 28.81 | 53.40 | 70.29 | 76.33 | 85.97 | 82.65 | 72.43 | 61.84 | 43.03 | 26.45 | 53.90 | |||||||||||||
1961 | 24.74 | 35.36 | 44.16 | 50.07 | a | 66.87 | 83.87 | 82.58 | 86.35 | 70.17 | 62.03 | 41.17 | 21.26 | 55.72 | ||||||||||||
1962 | 18.71 | 20.68 | 32.81 | 53.77 | 70.19 | 77.47 | 78.65 | 83.03 | 69.87 | 62.81 | 45.90 | 29.94 | 53.65 | |||||||||||||
1963 | 14.93 | a | 26.75 | 45.58 | 59.40 | 68.13 | 81.90 | 84.13 | 81.23 | 74.20 | 70.16 | 46.57 | 19.45 | 56.04 | ||||||||||||
1964 | 29.97 | 35.62 | 33.77 | 58.23 | 75.23 | 82.43 | 88.71 | 80.30 | a | 71.20 | 61.68 | 42.07 | 19.52 | 56.56 | ||||||||||||
1965 | 16.68 | 22.39 | 26.74 | 51.80 | 69.48 | 78.40 | 82.32 | 81.29 | 59.63 | 62.97 | 40.30 | 32.90 | 52.08 | |||||||||||||
1966 | 9.97 | 23.64 | 43.61 | 48.47 | 67.45 | 80.07 | 88.29 | 77.74 | 71.87 | 60.39 | 36.23 | 25.06 | 52.73 | |||||||||||||
1967 | 23.77 | 19.78 | a | 38.90 | 54.77 | 65.03 | 76.17 | 83.13 | 80.90 | 73.70 | 58.26 | 40.90 | 28.48 | 53.65 | ||||||||||||
1968 | 23.19 | 23.83 | 51.58 | 59.60 | 64.81 | 78.90 | 81.85 | e | 81.95 | l | 71.83 | 60.39 | 40.73 | 21.35 | 52.55 | a | ||||||||||
1969 | 12.65 | 24.39 | 30.13 | 57.33 | 70.68 | 71.33 | 82.06 | 86.91 | h | 75.03 | 52.90 | 40.90 | 25.58 | 49.36 | a | |||||||||||
1970 | 11.90 | 25.11 | 32.61 | 52.60 | 70.84 | 81.60 | 85.77 | 81.90 | 72.43 | 57.42 | 36.38 | a | 24.94 | 52.79 | ||||||||||||
1971 | 13.68 | 24.64 | 37.03 | 58.60 | 69.03 | 81.00 | 79.45 | 83.81 | 72.67 | 60.26 | 38.87 | 23.48 | 53.54 | |||||||||||||
1972 | 15.32 | 19.83 | 36.03 | 51.40 | 70.16 | 79.07 | 81.00 | 80.32 | 70.70 | 55.52 | 36.43 | 18.13 | 51.16 | |||||||||||||
1973 | 25.26 | 30.11 | 46.68 | 55.40 | 68.58 | 80.90 | 83.23 | 82.58 | 69.17 | 64.90 | 41.27 | 21.94 | 55.83 | |||||||||||||
1974 | 17.26 | 26.00 | 35.23 | 57.13 | 64.35 | 79.27 | 88.35 | 77.71 | 71.40 | 63.16 | 40.50 | 31.19 | 54.30 | |||||||||||||
1975 | 23.58 | 21.96 | 30.90 | 44.47 | 73.23 | 77.30 | 89.06 | 81.61 | 69.37 | 62.81 | 43.30 | 25.45 | 53.59 | |||||||||||||
1976 | 21.23 | 34.69 | 39.68 | 63.80 | 72.06 | 85.73 | 89.52 | 87.32 | 76.77 | 55.19 | 36.17 | 22.77 | 57.08 | |||||||||||||
1977 | 7.58 | 31.11 | 42.94 | 65.03 | 78.74 | 79.17 | 86.19 | 76.48 | 70.07 | 59.16 | 36.37 | 18.65 | 54.29 | |||||||||||||
1978 | 12.74 | 19.04 | 38.06 | 52.90 | 71.90 | a | 78.73 | 80.94 | 82.48 | 78.37 | 61.19 | 39.10 | 21.97 | 53.12 | ||||||||||||
1979 | 9.06 | 15.79 | 33.58 | 48.23 | 64.81 | ----- | z | 82.55 | 77.77 | 76.83 | 57.45 | 39.10 | 34.55 | 49.07 | a | |||||||||||
1980 | 22.65 | 24.07 | 35.26 | 63.27 | 76.32 | 79.07 | 85.97 | 81.06 | 72.50 | 54.71 | 46.23 | 27.58 | 55.72 | |||||||||||||
1981 | 27.84 | 32.29 | 49.39 | 61.77 | 70.19 | 76.63 | 82.23 | 79.65 | 71.87 | 55.39 | 47.43 | 21.68 | 56.36 | |||||||||||||
1982 | 7.61 | 23.71 | 35.10 | a | 54.10 | a | 71.37 | a | 74.37 | 83.71 | 81.29 | 69.40 | 56.48 | 36.13 | 31.70 | a | 52.08 | |||||||||
1983 | 25.97 | 31.21 | 39.29 | 52.50 | 68.39 | 77.13 | 87.48 | 88.35 | 72.50 | 55.21 | b | 37.07 | a | ----- | z | 57.74 | a | |||||||||
1984 | 19.87 | a | 33.07 | 32.13 | 56.20 | 68.00 | 78.10 | a | 84.16 | 84.00 | 68.43 | 58.70 | a | 42.50 | 22.81 | 54.00 | ||||||||||
1985 | 20.50 | a | 25.26 | a | 42.60 | a | 63.62 | a | 75.32 | 77.00 | 83.70 | a | 76.13 | 66.67 | 57.52 | 28.59 | a | 16.03 | a | 52.74 | ||||||
1986 | 24.29 | 20.75 | 42.81 | 57.93 | 70.39 | 81.93 | a | 83.90 | 77.81 | 68.17 | 58.80 | a | 35.57 | 33.03 | 54.61 | |||||||||||
1987 | 29.23 | 40.54 | 44.19 | 68.93 | 76.03 | 82.83 | a | 85.55 | 79.50 | a | 73.97 | a | 56.24 | b | 44.80 | 26.84 | 59.05 | |||||||||
1988 | 17.32 | 21.34 | 40.84 | 62.21 | a | 79.80 | a | 89.57 | 90.07 | a | 86.19 | 73.00 | 55.94 | 37.17 | 27.90 | 56.78 | ||||||||||
1989 | 30.23 | 16.32 | 33.52 | 55.30 | 72.42 | 79.07 | 87.16 | 82.16 | 73.60 | 63.48 | 36.73 | 18.19 | 54.02 | |||||||||||||
1990 | 35.48 | 33.68 | 43.42 | 58.93 | 68.52 | 79.77 | 81.61 | 80.58 | 76.87 | 60.32 | 45.60 | 24.29 | 57.42 | |||||||||||||
1991 | 20.81 | 36.07 | 42.77 | 60.17 | 71.81 | 81.76 | a | 81.29 | 81.29 | 69.70 | 58.42 | 31.43 | 28.00 | 55.29 | ||||||||||||
1992 | 29.48 | 34.38 | 42.81 | 52.76 | a | 74.03 | 75.23 | 74.13 | 76.19 | 71.97 | 58.61 | 32.27 | 23.67 | a | 53.79 | |||||||||||
1993 | 19.26 | 20.46 | 36.87 | a | 54.90 | 67.42 | 72.43 | 77.74 | 78.58 | 66.90 | a | 57.37 | a | 35.73 | 25.61 | 51.11 | ||||||||||
1994 | 6.77 | 17.39 | 40.60 | a | 57.27 | 74.23 | a | 79.83 | a | 79.32 | 77.39 | 74.00 | a | 60.77 | 44.40 | 28.29 | 53.36 | |||||||||
1995 | 23.70 | a | 26.93 | 40.68 | 48.87 | 67.19 | 80.93 | 82.61 | 81.48 | 70.60 | 54.16 | 33.30 | 23.65 | 52.84 | ||||||||||||
1996 | 13.06 | 24.07 | 32.94 | 51.07 | 64.35 | 80.13 | 78.97 | 81.10 | 70.27 | 60.30 | a | 28.23 | 15.86 | b | 50.03 | |||||||||||
1997 | 14.32 | 25.78 | a | 34.77 | 53.17 | 66.83 | b | 82.93 | a | 79.71 | 78.53 | a | 75.03 | a | 62.67 | a | 32.27 | 31.58 | 53.13 | |||||||
1998 | 21.29 | 34.93 | 35.29 | 62.70 | 76.45 | 75.34 | a | 82.37 | a | 82.00 | 79.24 | a | 60.13 | 40.57 | 33.03 | 56.95 | ||||||||||
1999 | 17.93 | a | 35.21 | 43.90 | 57.77 | 69.52 | 78.33 | 85.19 | 80.35 | 69.87 | 60.42 | 52.90 | a | 34.84 | 57.19 | |||||||||||
2000 | 22.39 | 33.79 | 50.97 | 57.90 | 72.10 | 76.48 | a | 81.81 | 82.00 | 73.90 | 62.68 | 34.47 | 11.84 | 55.03 | ||||||||||||
2001 | 27.35 | 16.89 | 31.94 | 55.93 | a | 70.06 | 79.89 | b | 84.74 | 83.71 | 70.60 | 58.35 | 53.53 | 29.29 | 55.19 | |||||||||||
2002 | 29.87 | 38.75 | 29.81 | 54.30 | 66.58 | 82.53 | 85.39 | 79.77 | 75.79 | a | 46.53 | a | 40.07 | 32.68 | 55.17 | |||||||||||
2003 | 21.45 | 23.96 | 40.00 | 59.43 | 68.83 | a | 77.43 | 82.83 | a | 84.58 | 73.57 | 61.29 | 35.47 | 30.16 | 54.92 | |||||||||||
2004 | 17.52 | 24.86 | 43.39 | 62.07 | 65.55 | 74.00 | 82.00 | 75.37 | a | 76.69 | a | 59.17 | a | 44.62 | a | 28.97 | 54.52 | |||||||||
2005 | 18.10 | 30.54 | 39.52 | 61.62 | a | 64.16 | 81.60 | 85.30 | a | 81.61 | 75.27 | ----- | z | ----- | z | 23.23 | a | 56.09 | b | |||||||
2006 | 31.32 | 23.32 | 38.61 | 61.63 | 70.10 | 81.73 | 89.23 | 82.77 | 69.73 | 56.00 | a | 43.77 | 34.06 | 56.86 | ||||||||||||
2007 | 24.39 | 17.32 | 40.71 | 51.93 | 74.30 | a | 81.97 | 85.23 | 79.48 | 75.87 | 62.60 | a | 41.33 | 19.97 | 54.59 | |||||||||||
2008 | 17.90 | 20.52 | 33.90 | 51.47 | 66.52 | 75.63 | 84.10 | 81.90 | 73.53 | 57.58 | 40.03 | 19.21 | b | 51.86 | ||||||||||||
2009 | 15.57 | a | 24.36 | 35.97 | 53.63 | 70.87 | 75.80 | 78.26 | 77.94 | 76.83 | 48.00 | 48.60 | 20.42 | 52.19 | ||||||||||||
2010 | 15.00 | 19.14 | 43.23 | 64.73 | 68.52 | 77.57 | 84.35 | 83.94 | 67.83 | 63.48 | 40.70 | 18.45 | 53.91 | |||||||||||||
2011 | 15.34 | b | 22.21 | 31.00 | 51.60 | 65.77 | 75.53 | 86.74 | 81.10 | 72.60 | 63.26 | 43.97 | 32.94 | 53.51 | ||||||||||||
2012 | 30.58 | 34.17 | 53.13 | 59.00 | 71.77 | 81.27 | 88.87 | 81.29 | 75.83 | 55.90 | 42.20 | 26.16 | 58.35 | |||||||||||||
2013 | 22.81 | 20.61 | 28.06 | 43.63 | 65.77 | 76.33 | 82.97 | 83.39 | 76.73 | 56.39 | c | 40.13 | 18.48 | 51.28 | ||||||||||||
2014 | 17.13 | 16.11 | 33.32 | 51.00 | 66.84 | 77.93 | 79.58 | 79.48 | 71.93 | 59.06 | 29.90 | 28.29 | 50.88 | |||||||||||||
2015 | 24.97 | 18.00 | 43.35 | 59.67 | 67.03 | 79.03 | 83.16 | 78.45 | 78.80 | 61.87 | 47.87 | 30.65 | 56.07 | |||||||||||||
2016 | 23.39 | 32.48 | 48.87 | 58.30 | 72.13 | 81.03 | 81.87 | 80.94 | 72.90 | 60.87 | 55.48 | i | 24.07 | c | 57.90 | a | ||||||||||
2017 | 22.71 | 38.64 | 40.52 | 57.73 | 68.03 | a | 79.67 | 84.42 | 76.94 | 75.63 | 60.48 | 38.37 | 26.61 | 55.81 | ||||||||||||
2018 | 22.77 | 22.79 | 36.58 | 43.87 | 76.35 | 79.60 | 82.60 | a | 80.94 | 73.72 | a | 51.43 | a | 32.57 | 30.29 | 52.79 | ||||||||||
2019 | 17.84 | 14.50 | 33.00 | 55.10 | a | 63.57 | a | 79.47 | 83.29 | 77.90 | 74.07 | a | 52.00 | a | 36.93 | 25.48 | 51.10 | |||||||||
2020 | 23.00 | 27.30 | b | 42.66 | b | 56.07 | a | 67.38 | b | 85.61 | b | 86.11 | c | 82.59 | b | 71.79 | a | 51.48 | 45.87 | 32.58 | 56.04 | |||||
2021 | 27.77 | 15.44 | a | 48.77 | 55.79 | b | 72.50 | e | 87.93 | b | 85.57 | c | 82.90 | 77.43 | 64.35 | 43.33 | 28.45 | 57.52 | ||||||||
2022 | 20.23 | 19.23 | b | 37.06 | 44.79 | a | 67.93 | a | 82.86 | a | 85.37 | a | 80.90 | 76.53 | 61.68 | 38.70 | 20.48 | 52.98 | ||||||||
2023 | 21.71 | 24.57 | 30.10 | 47.60 | 76.55 | 84.93 | 82.03 | 83.90 | 78.30 | 59.00 | 45.64 | b | 39.13 | 56.12 | ||||||||||||
2024 | 21.45 | 39.10 | 54.93 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.28 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 20.49 | 25.92 | 38.57 | 55.84 | 69.96 | 79.42 | 83.73 | 81.16 | 72.65 | 59.02 | 39.96 | 26.02 | 54.40 | |||||||||||||
S.D. | 6.12 | 6.73 | 5.99 | 5.44 | 3.85 | 3.46 | 3.22 | 2.73 | 3.40 | 4.31 | 5.53 | 5.70 | 1.95 | |||||||||||||
SKEW | -0.08 | 0.42 | 0.30 | -0.10 | 0.48 | 0.29 | -0.21 | 0.16 | -0.62 | -0.33 | -0.02 | -0.08 | 0.02 | |||||||||||||
MAX | 35.48 | 40.54 | 53.13 | 68.93 | 79.80 | 89.57 | 90.07 | 88.35 | 79.24 | 70.16 | 53.53 | 39.13 | 59.05 | |||||||||||||
MIN | 6.77 | 14.50 | 26.74 | 43.63 | 63.57 | 71.33 | 74.13 | 75.37 | 59.63 | 46.53 | 28.23 | 11.84 | 50.03 | |||||||||||||
YRS | 72 | 72 | 71 | 71 | 71 | 70 | 71 | 69 | 71 | 71 | 71 | 71 | 65 |