YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 96.79 | c | 82.00 | 74.31 | e | 52.84 | e | 49.55 | 71.10 | g | ||
1959 | 47.55 | 48.93 | 58.68 | 68.27 | 69.74 | 82.70 | 94.26 | 88.68 | 76.30 | 70.13 | 55.03 | 44.81 | 67.09 | |||||||||||||
1960 | 37.68 | 50.31 | 58.90 | 66.60 | 70.58 | 86.97 | 97.13 | 87.48 | 83.93 | 70.68 | 53.60 | 42.35 | 67.18 | |||||||||||||
1961 | 48.74 | 55.64 | 57.52 | 66.03 | 71.87 | 89.50 | 94.74 | 95.48 | 78.37 | 67.55 | 50.50 | 46.35 | 68.53 | |||||||||||||
1962 | 44.55 | 49.21 | 55.48 | 71.47 | 67.65 | 83.17 | 91.45 | 86.94 | 85.23 | 65.29 | 55.80 | 46.87 | 66.93 | |||||||||||||
1963 | 42.97 | 57.29 | 59.06 | 59.97 | 74.32 | 79.77 | 87.26 | 90.29 | 86.23 | 70.10 | 54.67 | 41.71 | 66.97 | |||||||||||||
1964 | 49.03 | 55.41 | 56.65 | 65.07 | 73.32 | 80.10 | 91.84 | 87.77 | 81.57 | 69.61 | 47.10 | 42.13 | a | 66.63 | ||||||||||||
1965 | 45.00 | 56.43 | 60.93 | a | 68.47 | 74.00 | 83.50 | 93.06 | 88.68 | 79.10 | 74.68 | 53.87 | 48.56 | o | 70.70 | a | ||||||||||
1966 | 45.09 | t | 51.19 | a | 60.94 | 70.23 | 78.84 | 80.87 | 88.10 | 90.61 | 84.27 | 70.77 | 53.97 | 46.74 | 70.59 | a | ||||||||||
1967 | 51.32 | 58.04 | 56.97 | 58.40 | 76.87 | 85.00 | 94.65 | 98.06 | 89.40 | 69.55 | 55.03 | 46.68 | 70.00 | |||||||||||||
1968 | 47.97 | 54.69 | 62.19 | 65.63 | 73.35 | 84.03 | 94.87 | 84.81 | 83.00 | 66.65 | 52.73 | 43.58 | 67.79 | |||||||||||||
1969 | 35.23 | 44.50 | 60.42 | 65.47 | 80.16 | 84.73 | 90.94 | 91.13 | 82.37 | 65.42 | 56.23 | 43.32 | 66.66 | |||||||||||||
1970 | 44.81 | 52.48 | a | 59.13 | 60.20 | 78.45 | 87.60 | 94.10 | 94.58 | 77.43 | 67.45 | 52.13 | 46.26 | 67.89 | ||||||||||||
1971 | 49.61 | 52.04 | 54.65 | 65.21 | a | 75.94 | 80.00 | 95.16 | 96.94 | 78.67 | 66.48 | 54.23 | 47.23 | 68.01 | ||||||||||||
1972 | 45.68 | 52.07 | 62.35 | 62.63 | 79.45 | 86.37 | 93.58 | 93.26 | 78.57 | 67.77 | 53.80 | 39.58 | 67.93 | |||||||||||||
1973 | 43.06 | 51.11 | 59.00 | a | 68.67 | 79.26 | 84.07 | 95.84 | 90.60 | a | 81.77 | 68.16 | 49.37 | 49.97 | 68.41 | |||||||||||
1974 | 40.90 | 55.04 | 58.52 | 65.93 | 72.45 | 90.73 | 91.29 | 93.35 | 88.93 | 71.71 | 55.27 | 49.03 | 69.43 | |||||||||||||
1975 | 49.65 | 47.50 | 54.42 | 59.93 | 75.32 | 81.33 | 94.32 | 87.03 | 86.97 | 66.71 | 53.87 | 48.71 | 67.15 | |||||||||||||
1976 | 50.48 | 51.41 | 56.87 | 63.47 | 78.29 | 80.70 | 92.81 | 85.90 | 86.90 | 72.71 | 55.57 | 47.48 | 68.55 | |||||||||||||
1977 | 41.45 | 55.86 | 58.90 | 74.37 | 68.68 | 88.27 | 89.47 | a | 92.37 | a | 76.31 | a | 68.55 | 50.77 | 46.03 | 67.58 | ||||||||||
1978 | 43.45 | 52.57 | 63.00 | 64.07 | 71.26 | 84.47 | 91.65 | 87.71 | 76.47 | 73.58 | 46.97 | 43.81 | 66.58 | |||||||||||||
1979 | 27.61 | 48.54 | 62.10 | 64.30 | 78.77 | 86.03 | 93.90 | 88.61 | 87.07 | a | 79.88 | o | 46.17 | g | 52.00 | 68.89 | b | |||||||||
1980 | 41.07 | a | 48.21 | ----- | z | 68.70 | 74.06 | 77.77 | 92.87 | ----- | z | 82.00 | b | 69.07 | a | 54.97 | 54.22 | m | 67.63 | c | ||||||
1981 | 45.16 | 52.14 | 60.84 | 67.17 | 73.39 | 80.23 | 90.42 | 97.00 | 81.67 | i | 68.53 | a | 56.07 | 45.74 | 66.97 | a | ||||||||||
1982 | 44.81 | 50.25 | 58.71 | 64.03 | 75.87 | 85.53 | 89.65 | 90.87 | a | 77.30 | 65.84 | 49.00 | 43.58 | 66.29 | ||||||||||||
1983 | 50.06 | 52.14 | 59.32 | 65.38 | a | 78.35 | 81.14 | a | 86.83 | a | 92.97 | 81.35 | j | 70.48 | 54.30 | 33.83 | a | 65.89 | a | |||||||
1984 | 45.50 | a | 53.17 | 60.81 | 61.83 | a | 73.62 | b | 81.23 | 95.90 | 93.71 | 80.63 | 64.23 | 50.43 | 43.23 | a | 67.02 | |||||||||
1985 | 39.23 | a | 52.36 | 59.16 | 72.77 | 77.58 | 87.50 | 100.71 | 91.42 | 75.63 | 68.65 | 42.47 | 31.84 | 66.61 | ||||||||||||
1986 | 45.87 | 50.43 | 64.74 | 66.45 | a | 78.20 | a | 91.57 | 88.48 | 98.47 | a | 75.70 | 72.68 | 53.62 | a | 43.06 | 69.11 | |||||||||
1987 | 43.84 | 52.54 | 60.94 | 76.03 | 81.26 | 91.66 | a | 88.10 | b | 94.45 | 89.20 | 77.03 | 54.73 | 44.26 | 71.17 | |||||||||||
1988 | 42.48 | 58.24 | 62.63 | a | 71.07 | a | 76.50 | c | 84.23 | 95.48 | 96.00 | 86.80 | 81.34 | b | 54.80 | 47.35 | 71.41 | |||||||||
1989 | 53.24 | b | 43.57 | 57.61 | 73.07 | 76.00 | 87.93 | a | 93.90 | a | 90.00 | 87.90 | 70.62 | b | 59.93 | a | 47.19 | 70.08 | ||||||||
1990 | 51.19 | 54.52 | a | 65.10 | 76.90 | 75.47 | a | 85.70 | 98.23 | 94.23 | 92.14 | a | 70.00 | a | 59.40 | 41.23 | 72.01 | |||||||||
1991 | 47.39 | 61.86 | 60.17 | a | 67.43 | 73.77 | 80.50 | 98.48 | 96.67 | a | 91.89 | b | 76.86 | b | 54.97 | 47.90 | a | 71.49 | ||||||||
1992 | 52.00 | 56.93 | 68.52 | 72.07 | a | 86.52 | 93.53 | 96.03 | a | 98.16 | 86.27 | 72.87 | 53.40 | 42.14 | b | 73.20 | ||||||||||
1993 | 37.42 | 42.63 | a | 58.35 | 65.48 | a | 82.71 | 82.34 | a | 83.94 | 91.90 | 90.07 | 74.94 | 50.50 | 46.06 | 67.20 | ||||||||||
1994 | 53.77 | 51.43 | 65.94 | 72.97 | 81.00 | 87.20 | 100.33 | a | 95.29 | 90.03 | 71.23 | 52.79 | a | 49.07 | a | 72.59 | ||||||||||
1995 | 44.65 | 59.25 | 60.52 | 66.83 | a | 79.35 | 83.53 | 93.87 | 91.28 | b | 88.72 | a | 70.94 | 58.83 | 44.61 | 70.20 | ||||||||||
1996 | 46.77 | 50.52 | 61.71 | 70.60 | 73.94 | 87.76 | a | 99.52 | 96.67 | a | 84.00 | 70.94 | 56.17 | 47.45 | 70.50 | |||||||||||
1997 | 45.65 | 52.61 | 63.10 | 67.77 | 83.21 | b | 79.26 | g | 92.28 | f | 96.33 | a | 84.53 | 70.48 | 56.03 | 46.81 | 66.65 | b | ||||||||
1998 | 49.10 | 54.70 | a | 62.06 | 69.03 | 72.32 | 86.03 | 100.76 | b | 100.17 | a | ----- | z | 71.43 | a | 56.70 | 50.50 | a | 70.26 | a | ||||||
1999 | 51.16 | 53.93 | 58.57 | a | 68.34 | a | 75.45 | 85.59 | a | 97.87 | 97.55 | 89.80 | 75.43 | a | 59.13 | 49.55 | 71.86 | |||||||||
2000 | 44.57 | j | 51.10 | 62.03 | 75.13 | 77.45 | 90.66 | a | 96.40 | a | 98.30 | a | 88.07 | a | 72.23 | a | 48.30 | 44.45 | 73.10 | a | ||||||
2001 | 45.19 | 51.96 | 64.94 | 67.57 | b | 86.79 | b | 84.64 | b | 95.69 | b | 99.48 | 92.61 | b | 73.13 | a | 55.93 | b | 45.74 | 71.97 | ||||||
2002 | 47.90 | 58.48 | a | 59.57 | a | 68.59 | a | 72.62 | b | 83.69 | a | 93.08 | f | 87.28 | f | 82.88 | e | 65.85 | e | 53.30 | c | 44.73 | a | 63.76 | b | |
2003 | 47.14 | c | 49.78 | e | 59.04 | c | 60.81 | d | 72.88 | g | 84.39 | g | 96.40 | f | 90.80 | f | 85.96 | g | 73.54 | g | 47.88 | e | 43.89 | c | 51.42 | f |
2004 | 34.93 | a | 50.16 | d | 63.95 | i | 67.05 | h | 71.26 | d | 82.52 | c | 93.00 | e | 89.89 | d | 78.65 | g | 67.46 | e | 52.68 | b | 46.80 | f | 67.74 | d |
2005 | 44.15 | e | 50.84 | c | 62.23 | e | 62.70 | j | 70.73 | e | 75.23 | 91.06 | 91.77 | 79.40 | 66.84 | 47.47 | 34.60 | a | 64.94 | a | ||||||
2006 | 49.58 | 46.96 | 52.45 | 64.03 | 73.84 | 81.40 | 94.58 | 89.03 | 82.40 | 67.26 | 52.33 | 42.87 | 66.40 | |||||||||||||
2007 | 41.26 | 48.21 | 62.71 | 63.20 | 75.03 | 80.97 | 93.65 | 88.26 | 79.63 | 63.53 | a | 50.14 | b | 45.35 | 66.00 | |||||||||||
2008 | 42.52 | b | 53.96 | d | 55.43 | a | 58.90 | 71.45 | 80.24 | a | 92.55 | 89.10 | 82.23 | 67.13 | 55.20 | 40.83 | a | 65.80 | ||||||||
2009 | 44.03 | 46.21 | 52.29 | 63.40 | 74.16 | 82.33 | 94.77 | 91.10 | 86.07 | a | 61.48 | 54.20 | 37.61 | 65.64 | ||||||||||||
2010 | 47.76 | b | 50.29 | 58.77 | 60.37 | 66.80 | a | 76.07 | 91.35 | 89.19 | 79.43 | 67.61 | 51.50 | 42.00 | 65.10 | |||||||||||
2011 | 47.65 | 48.64 | 54.68 | 58.73 | 66.77 | 77.50 | 86.52 | 92.65 | 86.43 | 67.87 | 55.03 | 46.26 | 65.73 | |||||||||||||
2012 | 48.71 | 48.31 | 54.84 | 65.20 | 72.61 | 76.47 | 91.74 | 94.32 | 86.23 | 68.00 | 53.97 | 44.48 | 67.07 | |||||||||||||
2013 | 41.00 | 52.04 | 58.84 | 65.43 | 74.87 | 82.20 | 97.03 | 91.10 | 80.87 | 63.74 | 50.33 | 41.06 | 66.54 | |||||||||||||
2014 | 45.06 | 41.39 | 59.23 | 65.38 | a | 76.81 | 80.73 | 96.19 | 92.26 | 83.07 | 72.32 | 48.10 | 44.10 | 67.05 | ||||||||||||
2015 | 47.23 | 55.68 | 64.55 | 65.80 | 75.23 | 89.83 | 92.84 | 92.29 | 79.47 | 73.48 | 49.53 | 44.94 | 69.24 | |||||||||||||
2016 | 42.19 | 55.03 | 57.58 | 72.47 | 74.53 | a | 84.50 | b | 88.65 | 92.87 | 80.07 | 63.71 | 57.80 | 37.77 | a | 67.26 | ||||||||||
2017 | 31.52 | 45.93 | 57.80 | a | 60.43 | 74.66 | b | 83.86 | a | 96.13 | 95.83 | b | 81.17 | a | 65.53 | a | 54.57 | b | 43.39 | 65.90 | ||||||
2018 | 48.55 | 50.89 | 56.55 | 63.80 | 79.26 | 82.27 | 96.42 | 92.68 | 79.77 | 66.74 | 53.46 | b | 46.90 | a | 68.11 | |||||||||||
2019 | 44.14 | c | 39.81 | a | 45.33 | g | 63.97 | 75.40 | k | 82.96 | b | 87.87 | 91.40 | f | 76.40 | e | 62.12 | g | 54.29 | m | 41.10 | a | 62.32 | e | ||
2020 | 50.63 | d | 55.09 | g | 56.56 | d | 67.46 | b | 73.81 | e | 79.81 | c | 90.59 | d | 92.13 | a | 83.41 | c | 75.43 | h | 55.08 | d | 44.36 | f | 72.16 | c |
2021 | 47.70 | h | 46.53 | i | 58.38 | e | 71.42 | k | 76.68 | f | 89.96 | b | 98.10 | 90.81 | 83.17 | 66.90 | 55.83 | a | 44.84 | 73.50 | d | |||||
2022 | 46.31 | b | 52.27 | b | 60.57 | a | 59.14 | a | 68.90 | a | 79.31 | a | 95.74 | 97.45 | b | 86.17 | a | 75.13 | a | 46.73 | 38.62 | b | 67.20 | |||
2023 | 45.10 | b | 47.93 | 50.57 | a | 61.32 | b | 77.52 | b | 83.61 | b | 95.83 | a | 92.27 | a | 80.88 | d | 67.37 | a | 51.00 | c | 45.17 | b | 66.55 | ||
2024 | 38.42 | 47.57 | a | 56.52 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.50 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 45.05 | 51.49 | 59.39 | 66.28 | 75.36 | 83.84 | 93.52 | 92.63 | 83.33 | 69.59 | 53.16 | 44.36 | 68.20 | |||||||||||||
S.D. | 5.04 | 4.30 | 3.41 | 4.52 | 4.24 | 4.03 | 3.69 | 3.68 | 4.55 | 3.79 | 3.41 | 3.93 | 2.10 | |||||||||||||
SKEW | -1.03 | -0.29 | -0.02 | 0.31 | 0.36 | 0.23 | -0.27 | 0.08 | 0.15 | 0.50 | -0.59 | -0.94 | 0.80 | |||||||||||||
MAX | 53.77 | 61.86 | 68.52 | 76.90 | 86.79 | 93.53 | 100.76 | 100.17 | 92.61 | 81.34 | 59.93 | 52.00 | 73.20 | |||||||||||||
MIN | 27.61 | 39.81 | 50.57 | 58.40 | 66.77 | 75.23 | 83.94 | 84.81 | 75.63 | 61.48 | 42.47 | 31.84 | 65.10 | |||||||||||||
YRS | 63 | 64 | 63 | 62 | 62 | 63 | 62 | 62 | 61 | 62 | 64 | 62 | 49 |