YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 71.33 | r | 58.32 | 46.20 | 30.55 | 45.02 | i | |||
1955 | 25.26 | 28.57 | 39.16 | 64.30 | 72.26 | 76.80 | 88.32 | 86.29 | 76.57 | 61.84 | 39.79 | b | 26.58 | 57.14 | ||||||||||||
1956 | 28.19 | 29.72 | 37.16 | 53.72 | a | 67.90 | 83.50 | 78.85 | d | 79.68 | 69.47 | 67.03 | 43.45 | a | 32.67 | a | 55.95 | |||||||||
1957 | 21.83 | b | 33.93 | 43.35 | 61.42 | f | 65.94 | 78.40 | 84.29 | 80.37 | a | 70.76 | a | 57.23 | 40.87 | 34.68 | 55.60 | a | ||||||||
1958 | 28.48 | 25.18 | 41.55 | 59.00 | 72.32 | 75.00 | 83.38 | r | 84.26 | 73.43 | 63.90 | b | 47.00 | 24.68 | 54.07 | a | ||||||||||
1959 | 20.47 | a | 27.15 | a | 37.41 | b | 57.23 | 75.48 | 81.77 | 83.35 | 83.87 | 73.53 | 52.55 | 34.11 | l | 34.36 | i | 59.28 | b | |||||||
1960 | 28.84 | 29.28 | 30.81 | e | 59.59 | a | 66.23 | 75.57 | 81.81 | 80.03 | 73.23 | 59.43 | a | 47.07 | 29.81 | 55.14 | ||||||||||
1961 | 24.62 | e | 36.54 | 42.13 | 51.10 | 68.55 | 79.73 | 83.35 | 82.26 | 69.96 | e | 61.84 | 44.30 | 28.77 | 56.10 | |||||||||||
1962 | 20.71 | 25.48 | a | 35.63 | a | 56.57 | 72.48 | 77.50 | 78.23 | 82.45 | 69.33 | 61.29 | 43.37 | 29.76 | b | 54.40 | ||||||||||
1963 | 14.06 | 22.79 | 43.10 | 61.30 | 65.71 | 82.70 | 84.58 | 79.19 | 72.17 | 71.16 | 48.77 | 21.61 | 55.59 | |||||||||||||
1964 | 31.55 | 34.93 | 39.61 | 57.30 | 75.03 | 80.57 | 84.55 | 79.13 | 69.53 | 59.39 | 47.47 | 25.19 | 57.02 | |||||||||||||
1965 | 22.03 | 24.82 | 30.29 | 51.07 | 73.55 | 78.50 | 80.84 | 77.74 | 67.40 | 60.52 | 43.13 | 35.70 | a | 53.80 | ||||||||||||
1966 | 20.50 | a | 28.18 | 43.71 | 49.93 | 64.65 | 80.43 | 85.61 | 78.23 | 70.67 | 58.77 | 41.53 | 28.29 | 54.21 | ||||||||||||
1967 | 28.16 | 22.36 | 39.03 | 53.83 | 62.68 | 77.87 | 79.52 | 74.90 | 70.90 | 55.48 | 37.60 | 30.26 | 52.72 | |||||||||||||
1968 | 24.55 | 24.41 | 49.55 | 58.00 | 63.32 | 77.57 | 80.48 | 82.23 | 69.97 | 59.71 | 42.10 | 28.29 | 55.01 | |||||||||||||
1969 | 20.71 | 30.00 | 35.23 | 57.70 | 68.71 | 67.40 | 79.16 | 80.87 | 68.60 | 53.23 | 41.69 | a | 28.84 | 52.68 | ||||||||||||
1970 | 18.10 | 28.54 | 37.26 | 54.57 | 66.81 | 81.13 | 84.55 | 83.83 | a | 72.03 | 61.48 | ----- | z | 31.84 | 56.38 | a | ||||||||||
1971 | 19.65 | 27.79 | 36.37 | a | 57.73 | 67.39 | 83.63 | 81.65 | 81.32 | 75.93 | 66.74 | 43.47 | ----- | z | 58.33 | a | ||||||||||
1972 | 24.19 | 27.66 | 36.03 | 54.17 | 75.19 | 77.90 | 81.13 | 79.61 | 71.67 | 56.87 | 40.83 | 26.58 | 54.32 | |||||||||||||
1973 | 30.27 | a | 31.11 | 49.16 | 51.20 | j | 64.80 | a | 81.17 | 83.57 | a | 82.16 | 70.83 | a | 66.55 | 44.10 | 31.06 | 57.71 | a | |||||||
1974 | 27.65 | 30.18 | 41.84 | 58.90 | 65.94 | 75.67 | 85.19 | 79.58 | 70.43 | 61.29 | 46.57 | 34.39 | 56.47 | |||||||||||||
1975 | 28.06 | 30.00 | 37.58 | 49.87 | 74.77 | 78.50 | 85.39 | 82.48 | 69.77 | 65.94 | 51.40 | 32.29 | 57.17 | |||||||||||||
1976 | 24.58 | 37.17 | 44.45 | 60.63 | 68.58 | 83.57 | 86.90 | 82.61 | 74.60 | 57.39 | 38.13 | 21.60 | a | 56.69 | ||||||||||||
1977 | 13.81 | 31.57 | 48.45 | 67.27 | d | 79.13 | 77.53 | 86.68 | 76.65 | 71.14 | a | 59.97 | 43.20 | 27.03 | a | 56.87 | ||||||||||
1978 | 20.13 | 23.25 | 40.97 | a | 55.90 | 71.94 | 79.33 | 80.06 | 82.27 | a | 77.70 | 59.77 | 45.20 | 28.06 | 55.38 | |||||||||||
1979 | 14.77 | 22.14 | 41.65 | 53.00 | 68.71 | 77.43 | 81.84 | 78.17 | a | 74.77 | 57.79 | c | 41.33 | 37.68 | 54.11 | |||||||||||
1980 | 25.97 | b | 26.28 | 38.19 | 58.70 | 72.90 | 77.93 | 86.26 | 80.90 | ----- | z | ----- | z | ----- | z | ----- | z | 58.39 | d | |||||||
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.71 | 77.03 | 68.40 | 73.67 | y | ----- | z | ----- | z | 76.05 | i | |||
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 83.33 | v | 73.67 | l | 58.19 | e | 46.40 | 18.13 | 40.91 | i | ||
1984 | 23.97 | 38.76 | 34.97 | 56.60 | 66.32 | 79.76 | a | 81.00 | 84.71 | 69.21 | b | 61.43 | a | 44.97 | 33.13 | 56.24 | ||||||||||
1985 | 23.39 | 27.00 | 46.77 | 61.97 | 74.71 | 76.93 | 84.81 | 77.06 | 71.13 | 58.53 | a | 37.97 | a | 21.81 | 55.17 | |||||||||||
1986 | 27.55 | 27.18 | 44.77 | 61.83 | 71.06 | 79.73 | 82.29 | 77.03 | 70.10 | 58.81 | 41.23 | 31.77 | 56.11 | |||||||||||||
1987 | 30.94 | 39.43 | 47.23 | 61.87 | 72.77 | a | 82.73 | 85.48 | 79.00 | 73.43 | 54.77 | 47.57 | 33.50 | a | 59.06 | |||||||||||
1988 | 22.17 | a | 27.31 | 43.68 | 58.83 | 76.68 | 86.57 | 87.26 | 85.10 | 74.40 | 54.77 | 44.20 | 31.55 | 57.71 | ||||||||||||
1989 | 32.61 | 25.14 | 36.77 | 57.29 | b | 70.03 | b | 78.33 | c | 84.11 | c | 80.48 | b | 71.24 | a | 63.29 | c | 41.83 | 19.93 | b | 55.09 | |||||
1990 | 38.52 | 36.22 | a | 47.26 | 60.07 | 64.19 | 77.37 | 80.94 | 78.61 | 74.13 | 58.35 | 49.37 | 29.58 | 57.88 | ||||||||||||
1991 | 22.35 | 34.11 | 43.77 | 60.00 | 72.06 | 81.83 | 81.29 | 81.10 | 69.79 | a | 59.13 | 38.13 | 32.35 | 56.33 | ||||||||||||
1992 | 29.94 | 35.59 | 42.35 | 50.90 | 71.52 | 76.33 | 77.39 | 77.87 | 69.17 | 58.94 | 38.20 | 30.43 | a | 54.88 | ||||||||||||
1993 | 27.65 | 28.11 | 39.32 | 50.87 | 69.23 | 74.67 | 79.19 | 80.58 | 64.97 | 58.84 | 41.50 | 30.45 | 53.78 | |||||||||||||
1994 | 16.42 | 24.00 | 43.42 | 58.60 | 70.52 | 81.67 | 79.16 | 77.13 | 73.43 | 63.39 | 48.83 | 36.58 | 56.10 | |||||||||||||
1995 | 26.68 | 32.00 | 45.29 | 51.13 | 67.03 | 83.03 | 83.81 | 83.03 | 69.77 | 60.19 | 35.93 | 26.84 | 55.39 | |||||||||||||
1996 | 25.83 | a | 27.62 | 36.45 | 52.97 | a | 62.84 | 76.47 | 79.23 | 80.42 | 73.73 | 62.06 | 37.03 | 28.29 | 53.58 | |||||||||||
1997 | 23.84 | 34.79 | 42.90 | 56.03 | 63.81 | 80.43 | 80.87 | 75.48 | 73.53 | 61.55 | 40.90 | 35.55 | 55.81 | |||||||||||||
1998 | 29.45 | 39.86 | 42.65 | 59.83 | 75.42 | 77.20 | 83.74 | 81.87 | 78.90 | 62.42 | 48.73 | 39.06 | 59.93 | |||||||||||||
1999 | 23.58 | 37.82 | 45.68 | 59.63 | 71.84 | 78.70 | 84.97 | 78.10 | 73.17 | 60.48 | 55.00 | 32.66 | b | 58.47 | ||||||||||||
2000 | 27.74 | 38.41 | 51.39 | 56.57 | 70.39 | 75.27 | 79.58 | 80.45 | 71.30 | 64.42 | 41.73 | 20.58 | 56.49 | |||||||||||||
2001 | 31.00 | 27.82 | 39.65 | 60.87 | 70.03 | 75.93 | 84.35 | 82.58 | 70.07 | a | 58.84 | 55.93 | 37.55 | 57.89 | ||||||||||||
2002 | 35.10 | 39.75 | 37.87 | 56.57 | 65.87 | a | 79.60 | 86.58 | 81.77 | 77.43 | 54.58 | 44.00 | 35.45 | 57.88 | ||||||||||||
2003 | 25.58 | 28.86 | 42.03 | 57.52 | a | 66.81 | 76.20 | 80.52 | 83.94 | 72.70 | 61.10 | 43.77 | 36.03 | 56.25 | ||||||||||||
2004 | 22.06 | 32.90 | 44.37 | a | 59.17 | 65.58 | 74.30 | 78.77 | 74.61 | 77.17 | 60.81 | 47.80 | 31.65 | 55.77 | ||||||||||||
2005 | 25.03 | 35.57 | 40.06 | 62.93 | 65.68 | 83.80 | 84.00 | 81.84 | 78.47 | 62.00 | 45.37 | 26.00 | 57.56 | |||||||||||||
2006 | 36.84 | 31.11 | a | 43.16 | 62.83 | 67.97 | 78.10 | 85.03 | 80.26 | 68.03 | 54.52 | 47.20 | 36.77 | 57.65 | ||||||||||||
2007 | 31.81 | 22.75 | 47.23 | a | 54.60 | 73.68 | 79.77 | 82.65 | 79.13 | 73.57 | 65.03 | a | 43.87 | 27.35 | 56.79 | |||||||||||
2008 | 25.13 | 24.14 | 37.39 | 55.53 | 66.06 | 76.80 | 80.94 | 79.74 | ----- | z | 58.71 | 44.20 | 25.55 | 52.20 | a | |||||||||||
2009 | 19.03 | 33.25 | 42.23 | 54.93 | 68.45 | 75.70 | 76.16 | 76.68 | 74.33 | 51.48 | 51.17 | 27.97 | 54.28 | |||||||||||||
2010 | 24.84 | 31.93 | 49.81 | 64.23 | 70.97 | 76.80 | 82.10 | 82.10 | 69.17 | 64.13 | 46.00 | 26.26 | 57.36 | |||||||||||||
2011 | 23.03 | 29.21 | 38.74 | 51.57 | 65.39 | 75.47 | 85.06 | 81.65 | 69.33 | 62.90 | 46.13 | 36.52 | 55.42 | |||||||||||||
2012 | 31.87 | 37.75 | a | 58.84 | 57.57 | 74.06 | 82.43 | 90.94 | 81.16 | 72.83 | 57.45 | 45.43 | 34.97 | 60.44 | ||||||||||||
2013 | 28.84 | 28.00 | 35.19 | 49.47 | 69.48 | 75.33 | 79.94 | 80.23 | 74.63 | 58.71 | 41.27 | 24.13 | 53.77 | |||||||||||||
2014 | 18.84 | 21.21 | 34.97 | 53.33 | 68.90 | 78.77 | 77.45 | 80.16 | 71.13 | 57.52 | 35.67 | 32.90 | 52.57 | |||||||||||||
2015 | 24.81 | 19.86 | 44.68 | 59.30 | 70.16 | 75.53 | 80.19 | 78.32 | 77.10 | 61.10 | 51.37 | 41.61 | 57.00 | |||||||||||||
2016 | 25.97 | 34.52 | 48.45 | 55.50 | 70.06 | 78.17 | 81.26 | 82.13 | 73.77 | 62.32 | 54.63 | 29.52 | 58.02 | |||||||||||||
2017 | 28.23 | 40.32 | 41.45 | 60.80 | 66.10 | 78.07 | 79.77 | 76.65 | 75.67 | 61.84 | 42.93 | a | 29.19 | 56.75 | ||||||||||||
2018 | 27.55 | 30.07 | 43.19 | 46.69 | a | 75.71 | 77.17 | 81.87 | 79.74 | 72.83 | 54.71 | 36.60 | 33.68 | 54.98 | ||||||||||||
2019 | 23.90 | 25.64 | 39.03 | 55.13 | 62.87 | 75.30 | 82.94 | 76.58 | 71.97 | 55.84 | 36.70 | 34.61 | 53.38 | |||||||||||||
2020 | 31.73 | a | 32.86 | a | 44.37 | a | 52.72 | a | 65.84 | 78.83 | 82.58 | 81.03 | 67.73 | 52.52 | 50.73 | 34.13 | 56.26 | |||||||||
2021 | 28.84 | 25.04 | b | 49.76 | b | 58.30 | 67.57 | a | 81.14 | a | 80.77 | 80.77 | 74.17 | 64.59 | b | 45.59 | a | 36.50 | a | 57.75 | ||||||
2022 | 22.55 | 30.00 | 43.48 | b | 51.21 | a | 70.65 | 79.57 | 82.67 | a | 80.52 | 72.33 | 61.23 | a | 48.17 | 28.68 | 55.92 | |||||||||
2023 | 31.06 | 34.39 | 41.61 | 57.80 | 70.97 | 81.33 | 83.58 | 81.32 | 75.90 | 61.45 | 46.23 | 39.87 | 58.79 | |||||||||||||
2024 | 27.29 | 45.04 | b | 50.07 | a | 57.16 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.80 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 25.53 | 30.36 | 41.97 | 56.80 | 69.40 | 78.61 | 82.49 | 80.28 | 72.22 | 59.98 | 44.29 | 30.54 | 56.06 | |||||||||||||
S.D. | 5.08 | 5.51 | 5.15 | 4.19 | 3.88 | 3.05 | 2.88 | 2.51 | 2.94 | 3.79 | 4.63 | 5.07 | 1.76 | |||||||||||||
SKEW | -0.05 | 0.36 | 0.36 | -0.08 | 0.25 | -0.25 | 0.27 | -0.11 | 0.22 | 0.11 | 0.28 | -0.25 | 0.10 | |||||||||||||
MAX | 38.52 | 45.04 | 58.84 | 67.27 | 79.13 | 86.57 | 90.94 | 86.29 | 78.90 | 71.16 | 55.93 | 41.61 | 60.44 | |||||||||||||
MIN | 13.81 | 19.86 | 30.29 | 46.69 | 62.68 | 67.40 | 76.16 | 74.61 | 64.97 | 51.48 | 35.67 | 18.13 | 52.57 | |||||||||||||
YRS | 67 | 67 | 67 | 64 | 66 | 66 | 66 | 67 | 65 | 67 | 65 | 65 | 58 |