YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.70 | h | 43.41 | a | 23.06 | 33.24 | j | |
1959 | 19.61 | 27.46 | 43.35 | 58.43 | 70.58 | 79.07 | 83.55 | 82.48 | 71.43 | 50.97 | a | 31.93 | 35.32 | 54.52 | ||||||||||||
1960 | 23.39 | 25.79 | 30.97 | 56.03 | 68.00 | 75.20 | 82.71 | 81.65 | 67.94 | m | 62.00 | 44.67 | 28.61 | 52.64 | a | |||||||||||
1961 | 25.10 | 36.18 | 43.84 | 49.80 | 68.03 | 80.33 | 83.00 | 84.32 | 71.63 | 64.20 | a | 41.93 | a | 24.45 | 56.07 | |||||||||||
1962 | 19.19 | 22.54 | 35.81 | 55.30 | 73.74 | 77.32 | b | 80.10 | 81.97 | 70.41 | a | 65.13 | a | 45.33 | c | 30.87 | a | 54.81 | ||||||||
1963 | 15.90 | a | 26.29 | 44.63 | a | 60.37 | 68.00 | 81.97 | 84.74 | 80.33 | a | 74.07 | 71.03 | 49.00 | 17.65 | 56.16 | ||||||||||
1964 | 28.97 | 33.32 | a | 35.94 | 57.07 | 71.34 | b | 77.10 | 84.40 | a | 76.68 | 67.47 | 57.84 | 43.13 | 21.68 | 54.58 | ||||||||||
1965 | 18.81 | 22.11 | 27.61 | 49.23 | 68.81 | 74.37 | 77.52 | 75.97 | 59.13 | 59.58 | 40.37 | 32.61 | 50.51 | |||||||||||||
1966 | 12.45 | 24.75 | 42.74 | 49.80 | 65.00 | 77.40 | 83.48 | 74.97 | 68.67 | 57.03 | 38.00 | i | 25.00 | 52.84 | a | |||||||||||
1967 | 24.58 | 19.50 | 37.71 | 53.97 | 62.74 | 73.33 | 77.45 | 74.35 | 69.73 | 55.97 | 37.79 | a | 29.68 | 51.40 | ||||||||||||
1968 | 23.19 | 24.34 | 48.23 | 58.90 | 61.67 | a | 74.13 | 77.68 | 77.03 | ----- | z | 58.71 | 40.40 | 23.39 | 51.61 | a | ||||||||||
1969 | 17.45 | 27.48 | a | 32.65 | 57.87 | 68.16 | 68.93 | 78.97 | 81.77 | 71.00 | 52.87 | 40.80 | 26.45 | 52.03 | ||||||||||||
1970 | 13.71 | 27.11 | 33.52 | 54.43 | 66.97 | 77.83 | 81.68 | 78.23 | 68.07 | 56.13 | 37.10 | 26.16 | 51.74 | |||||||||||||
1971 | 14.42 | 24.64 | 34.61 | 56.97 | 64.77 | 79.07 | 75.48 | 76.42 | 70.53 | 62.06 | 39.27 | 25.13 | 51.95 | |||||||||||||
1972 | 16.16 | 20.46 | a | 34.19 | 49.93 | 71.52 | 75.23 | 76.68 | 76.19 | 66.20 | 51.94 | 38.03 | 19.13 | 49.64 | ||||||||||||
1973 | 24.77 | 28.71 | 46.65 | 53.27 | 62.81 | 76.30 | 78.77 | 79.26 | 66.03 | 62.94 | 41.43 | 23.74 | 53.72 | |||||||||||||
1974 | 21.43 | a | 26.79 | 36.53 | a | 55.80 | 62.68 | 73.77 | 83.55 | 75.13 | 66.73 | 59.52 | 41.30 | 30.29 | 52.79 | |||||||||||
1975 | 22.10 | a | 24.71 | 31.00 | 46.33 | 70.84 | 74.77 | 82.26 | 77.74 | 64.97 | 61.68 | 45.53 | 25.23 | 52.26 | ||||||||||||
1976 | 19.48 | 33.97 | 39.00 | 60.30 | 68.45 | 80.70 | 84.52 | 81.39 | 70.77 | 53.00 | 35.07 | 19.13 | a | 53.81 | ||||||||||||
1977 | 10.03 | 29.80 | c | 44.61 | 63.03 | 77.00 | 76.30 | 81.81 | 74.13 | 67.97 | 56.81 | 39.27 | 21.87 | 53.55 | ||||||||||||
1978 | 15.73 | a | 21.71 | 39.00 | 52.70 | 71.35 | 76.23 | 78.81 | 77.90 | 74.03 | 57.52 | 38.79 | a | 20.53 | a | 52.03 | ||||||||||
1979 | 10.03 | 18.57 | 33.52 | 51.47 | 63.19 | 75.30 | 78.68 | 74.26 | 70.60 | 54.58 | 37.50 | 31.87 | 49.96 | |||||||||||||
1980 | 22.35 | 24.10 | 34.77 | 59.57 | 72.97 | 75.20 | 82.13 | 77.74 | 68.03 | 53.23 | 43.13 | 25.45 | 53.22 | |||||||||||||
1981 | 26.66 | b | 30.56 | a | 47.00 | a | 57.80 | 66.77 | 74.60 | 79.48 | 76.19 | 67.53 | 53.55 | 45.67 | 24.23 | 54.17 | ||||||||||
1982 | 11.10 | a | 23.82 | 34.61 | 52.13 | 71.52 | 72.90 | 82.81 | 78.03 | 66.70 | 57.87 | 37.31 | a | 31.06 | 51.66 | |||||||||||
1983 | 28.00 | c | 32.41 | a | 39.06 | 50.31 | a | 63.00 | 74.96 | b | 82.90 | 81.77 | a | 70.65 | d | 56.29 | 39.55 | a | 12.43 | a | 52.61 | |||||
1984 | 20.84 | 34.90 | 34.06 | 56.67 | 65.45 | 76.50 | 79.42 | 79.97 | 64.67 | 58.71 | 41.10 | a | 26.06 | 53.20 | ||||||||||||
1985 | 21.20 | a | 24.39 | 43.74 | 60.97 | 71.97 | a | 72.97 | 80.48 | 73.27 | a | 66.30 | 56.42 | 32.77 | 17.06 | 51.79 | ||||||||||
1986 | 24.77 | 24.56 | a | 43.13 | a | 59.50 | 70.71 | 78.23 | 82.03 | ----- | z | ----- | z | ----- | z | 37.97 | 30.63 | a | 50.17 | c | ||||||
1987 | 29.90 | 42.07 | 49.23 | a | 69.87 | 77.53 | a | 87.21 | a | 86.90 | 80.77 | a | 76.07 | 56.03 | a | 46.40 | 31.32 | 61.11 | ||||||||
1988 | 21.17 | a | 25.17 | 43.84 | 62.93 | 79.74 | 89.50 | b | 91.84 | 86.10 | 75.10 | a | 56.61 | 40.60 | 28.58 | 58.43 | ||||||||||
1989 | 31.58 | 21.86 | 35.67 | a | 57.80 | 72.13 | 79.93 | 86.87 | 84.32 | 74.67 | 65.03 | 38.43 | 20.55 | 55.74 | ||||||||||||
1990 | 36.77 | 35.46 | 47.45 | 61.23 | 70.84 | 82.23 | 83.35 | 83.06 | 76.00 | 61.55 | 48.73 | 27.61 | 59.53 | |||||||||||||
1991 | 23.61 | 38.00 | 46.23 | 63.23 | 73.52 | 83.63 | 82.97 | 83.94 | 70.57 | 59.90 | 33.27 | 30.90 | 57.48 | |||||||||||||
1992 | 29.84 | 35.90 | 43.68 | 53.70 | 75.42 | 78.37 | 77.87 | 78.52 | 72.83 | 60.97 | 37.13 | 29.58 | 56.15 | |||||||||||||
1993 | 25.48 | 28.61 | 42.10 | 57.40 | 70.29 | 75.27 | 80.94 | 82.53 | a | 66.47 | 59.26 | 39.13 | 28.40 | a | 54.66 | |||||||||||
1994 | 15.42 | 24.46 | 46.35 | 60.13 | 75.68 | 82.63 | 81.45 | 79.90 | 75.60 | 62.10 | a | 47.30 | 33.84 | 57.07 | ||||||||||||
1995 | 26.33 | a | 29.52 | a | 45.50 | a | 53.53 | 70.39 | 84.03 | 84.35 | 84.77 | 72.17 | 59.35 | 34.77 | 26.10 | 55.90 | ||||||||||
1996 | 19.74 | 28.62 | 36.81 | 55.20 | 68.52 | 79.43 | 81.16 | 83.77 | 72.53 | 62.10 | 34.23 | 23.45 | 53.80 | |||||||||||||
1997 | 20.94 | 32.96 | 41.35 | 57.63 | 68.52 | 83.37 | 81.81 | 79.35 | 74.57 | 62.48 | 37.40 | 35.23 | 56.30 | |||||||||||||
1998 | 28.26 | 41.04 | 43.13 | 65.40 | 80.90 | 77.27 | 84.71 | 84.29 | 81.37 | 63.19 | 47.40 | 37.23 | 61.18 | |||||||||||||
1999 | 22.32 | 38.93 | 47.68 | 62.67 | 73.90 | 79.03 | 88.03 | 81.87 | 74.76 | a | 64.19 | 54.07 | 37.00 | 60.37 | ||||||||||||
2000 | 28.32 | 38.66 | 53.23 | 60.47 | 74.06 | 78.33 | 84.29 | 84.32 | 75.67 | 66.97 | 40.40 | 16.65 | 58.45 | |||||||||||||
2001 | 32.47 | a | 27.11 | a | 41.65 | 61.14 | a | 72.39 | 80.53 | 87.42 | 86.03 | 73.77 | 61.16 | 57.07 | 36.65 | 59.78 | ||||||||||
2002 | 35.06 | 39.36 | 36.06 | 58.70 | 67.61 | 81.47 | 86.94 | 81.35 | 77.07 | 52.06 | 43.10 | 36.26 | 57.92 | |||||||||||||
2003 | 26.58 | 27.96 | 43.94 | 61.83 | 71.42 | 79.53 | 84.03 | 86.97 | 75.00 | 63.71 | 42.43 | 34.03 | 58.12 | |||||||||||||
2004 | 20.58 | 33.52 | 45.58 | 64.90 | 68.13 | 77.67 | 83.61 | 78.94 | 78.13 | 60.26 | 46.70 | 29.58 | 57.30 | |||||||||||||
2005 | 22.71 | 35.18 | 41.90 | 63.30 | 64.23 | 82.27 | 85.23 | 82.74 | 76.73 | 63.87 | 45.33 | 26.87 | 57.53 | |||||||||||||
2006 | 36.03 | 29.11 | 42.77 | 64.07 | 70.68 | 80.37 | 88.84 | 81.81 | 69.47 | 56.45 | 46.07 | 35.55 | 58.43 | |||||||||||||
2007 | 28.23 | 22.25 | 46.84 | 57.43 | 74.52 | 82.03 | 85.52 | 80.94 | 75.63 | 63.39 | 43.60 | 24.35 | 57.06 | |||||||||||||
2008 | 22.87 | 25.79 | 38.39 | 52.70 | 67.10 | 77.77 | 83.74 | 82.55 | 74.07 | 60.45 | 43.77 | 23.71 | 54.41 | |||||||||||||
2009 | 18.13 | 31.93 | 42.13 | 58.23 | 71.65 | 77.83 | 78.90 | 79.52 | 78.97 | 50.68 | 52.13 | 24.77 | 55.41 | |||||||||||||
2010 | 22.32 | 31.79 | 51.71 | 67.17 | 71.35 | 76.87 | 84.77 | 85.48 | 69.17 | 65.81 | 43.47 | 24.10 | 57.83 | |||||||||||||
2011 | 19.74 | 29.04 | 39.39 | 55.60 | 66.84 | 76.83 | 87.35 | 83.06 | 72.30 | 67.06 | 48.07 | 34.68 | 56.66 | |||||||||||||
2012 | 31.71 | 37.03 | 58.13 | 60.23 | 73.61 | 81.30 | 88.48 | 82.45 | 77.03 | 57.90 | 46.20 | 31.45 | 60.46 | |||||||||||||
2013 | 25.97 | 28.54 | 37.45 | 47.93 | 67.29 | 76.43 | 82.87 | 84.58 | 77.57 | 58.94 | 41.33 | 19.50 | a | 54.03 | ||||||||||||
2014 | 17.39 | 20.43 | 34.74 | 52.00 | 68.23 | 78.70 | 80.68 | 81.26 | 73.27 | 60.87 | 34.80 | 30.65 | 52.75 | |||||||||||||
2015 | 26.42 | 20.89 | 46.81 | 60.90 | 69.19 | 78.73 | 83.13 | 79.42 | 78.13 | 62.23 | 51.00 | 36.00 | 57.74 | |||||||||||||
2016 | 24.42 | 33.34 | 49.00 | 57.23 | 72.03 | 79.80 | 83.81 | 82.81 | 74.53 | 63.06 | 53.87 | 27.74 | 58.47 | |||||||||||||
2017 | 28.29 | 39.68 | 42.58 | 59.53 | 67.87 | 80.07 | a | 84.39 | 77.90 | 77.20 | 61.74 | 41.07 | 26.10 | 57.20 | ||||||||||||
2018 | 21.56 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.50 | q | 34.79 | a | 28.74 | 31.77 | j | |
2020 | 25.65 | 29.45 | 42.68 | 52.97 | a | 66.80 | a | 81.93 | 85.26 | 81.52 | 69.53 | 49.81 | 45.21 | a | 30.97 | a | 55.15 | |||||||||
2021 | 25.84 | 18.89 | 47.74 | 54.10 | 68.06 | 85.57 | 85.65 | 82.94 | 75.37 | 63.55 | 42.40 | 30.23 | 56.69 | |||||||||||||
2022 | 17.52 | 21.32 | 37.65 | 47.07 | 68.84 | 80.13 | 83.26 | 80.10 | 74.23 | 60.23 | 41.53 | 22.32 | 52.85 | |||||||||||||
2023 | 25.55 | i | 29.46 | 36.39 | 51.37 | 73.03 | 84.93 | 83.93 | b | 82.16 | 76.27 | 59.29 | 44.03 | 37.81 | 59.88 | a | ||||||||||
2024 | 23.81 | 40.55 | 45.56 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.64 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 22.90 | 28.98 | 41.31 | 57.10 | 69.85 | 78.59 | 82.85 | 80.50 | 72.09 | 59.51 | 42.14 | 27.50 | 55.35 | |||||||||||||
S.D. | 6.07 | 6.19 | 5.98 | 5.08 | 4.13 | 3.73 | 3.26 | 3.36 | 4.34 | 4.45 | 5.34 | 5.76 | 2.92 | |||||||||||||
SKEW | 0.01 | 0.34 | 0.11 | 0.00 | 0.26 | 0.37 | 0.04 | -0.29 | -0.39 | -0.15 | 0.45 | -0.19 | 0.10 | |||||||||||||
MAX | 36.77 | 42.07 | 58.13 | 69.87 | 80.90 | 89.50 | 91.84 | 86.97 | 81.37 | 71.03 | 57.07 | 37.81 | 61.18 | |||||||||||||
MIN | 10.03 | 18.57 | 27.61 | 46.33 | 61.67 | 68.93 | 75.48 | 73.27 | 59.13 | 49.81 | 31.93 | 12.43 | 49.64 | |||||||||||||
YRS | 63 | 64 | 64 | 63 | 63 | 63 | 63 | 62 | 60 | 62 | 64 | 65 | 58 |