YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | 42.80 | a | 68.50 | 72.26 | 76.41 | a | 85.19 | 86.23 | 83.13 | 68.11 | v | 42.77 | 29.45 | 65.19 | c | |||||||
1949 | 21.00 | 27.37 | a | 41.23 | 63.10 | a | 77.48 | 84.53 | 93.26 | 89.87 | 73.73 | 63.52 | 54.90 | 33.39 | 60.28 | |||||||||||
1950 | 16.81 | 30.32 | 35.48 | 51.53 | 67.87 | 82.40 | 80.97 | 83.43 | a | 76.83 | 67.42 | 44.03 | 30.55 | b | 55.64 | |||||||||||
1951 | 28.03 | 39.11 | 31.42 | 53.57 | 71.32 | 73.03 | 82.48 | 81.23 | 69.73 | 60.23 | 40.27 | 25.77 | 54.68 | |||||||||||||
1952 | 25.97 | a | 36.29 | a | 34.06 | 61.47 | 72.90 | 85.20 | 89.35 | 84.94 | 81.70 | 63.48 | 46.43 | 33.03 | 59.57 | |||||||||||
1953 | 28.15 | k | ----- | z | ----- | z | ----- | z | 69.87 | a | 83.13 | 86.87 | a | 86.23 | 80.26 | g | 76.86 | i | 51.70 | 31.65 | 68.24 | f | ||||
1954 | 22.69 | b | 46.43 | 37.68 | 65.77 | 67.23 | 80.29 | b | 89.23 | 83.00 | a | 75.50 | 58.35 | 49.24 | m | 32.19 | 59.85 | a | ||||||||
1955 | 29.35 | 25.29 | 42.39 | 70.43 | 79.45 | 78.47 | 92.68 | 92.00 | 77.55 | a | 65.71 | 36.27 | 20.32 | 59.16 | ||||||||||||
1956 | 18.68 | 25.90 | 41.71 | 56.83 | 73.67 | a | 90.37 | 86.06 | 84.61 | 79.80 | 72.97 | a | 42.86 | a | 37.90 | 59.28 | ||||||||||
1957 | 22.03 | 36.54 | 43.81 | 59.27 | 67.97 | 79.47 | 90.74 | 86.17 | a | 73.97 | 59.16 | 42.87 | 40.52 | 58.54 | ||||||||||||
1958 | 35.81 | 30.14 | 38.81 | 61.07 | 79.26 | 78.70 | 82.71 | 90.81 | 79.83 | 69.13 | 49.17 | 29.74 | 60.43 | |||||||||||||
1959 | 23.63 | a | 28.11 | 49.81 | 64.10 | 72.23 | 87.33 | 90.06 | 91.61 | 75.80 | 57.68 | 35.30 | 37.68 | 59.44 | ||||||||||||
1960 | 24.00 | 23.90 | 29.19 | 58.60 | 72.06 | 77.47 | 88.19 | 87.10 | 76.13 | 66.16 | 48.63 | 32.57 | j | 59.22 | a | |||||||||||
1961 | 24.77 | i | 36.43 | 46.87 | 56.03 | 69.55 | 84.30 | 87.81 | 89.71 | 73.60 | 66.77 | a | 45.03 | 26.81 | 62.08 | a | ||||||||||
1962 | 23.46 | e | 27.36 | 32.10 | 60.10 | 74.74 | 77.57 | 82.48 | 84.91 | h | 72.50 | h | 64.35 | e | 49.30 | g | 34.39 | 52.95 | c | |||||||
1963 | 20.13 | a | 34.36 | c | ----- | z | 63.96 | c | 73.16 | 86.07 | 89.00 | 85.16 | 78.00 | 72.90 | 52.40 | 25.71 | 61.90 | a | ||||||||
1964 | 34.77 | 39.55 | 40.32 | 63.00 | 78.71 | 84.80 | 92.19 | 83.35 | 76.13 | 66.65 | 47.28 | a | 27.06 | 61.15 | ||||||||||||
1965 | 25.23 | 31.89 | 34.00 | 62.30 | 76.97 | 81.10 | 86.39 | 87.00 | 65.10 | 69.61 | 48.97 | 40.28 | f | 60.78 | a | |||||||||||
1966 | 18.97 | 28.82 | 51.52 | 56.27 | 73.23 | 83.70 | 92.65 | 83.13 | 74.13 | 67.35 | 44.53 | 31.90 | 58.85 | |||||||||||||
1967 | 30.90 | 32.75 | 51.90 | 62.43 | 70.00 | 79.50 | 88.68 | 88.67 | a | 77.93 | 63.74 | 47.70 | 34.74 | 60.75 | ||||||||||||
1968 | 28.77 | 31.28 | 59.58 | 64.93 | 70.48 | 87.53 | 87.71 | c | 87.71 | 75.47 | 63.84 | 45.10 | 26.42 | 60.74 | ||||||||||||
1969 | 19.32 | 30.00 | 32.61 | 63.90 | 76.87 | 78.07 | 86.23 | 87.81 | 78.17 | 55.48 | 46.30 | 31.65 | 57.20 | |||||||||||||
1970 | 18.94 | 36.36 | 38.71 | 60.23 | 77.90 | 86.20 | 90.71 | 89.42 | 79.07 | 63.15 | e | 43.00 | 28.77 | 59.37 | ||||||||||||
1971 | 20.39 | 31.64 | 42.61 | 64.27 | 72.39 | 86.87 | 85.68 | 90.55 | 78.43 | 66.97 | a | 45.00 | 30.19 | 59.58 | ||||||||||||
1972 | 22.42 | 26.34 | 44.97 | 59.50 | 71.77 | 82.50 | 86.32 | 85.23 | 75.80 | 59.61 | 41.07 | 25.94 | 56.79 | |||||||||||||
1973 | 28.55 | 32.89 | 48.94 | 60.60 | 73.74 | 86.47 | 89.16 | 91.87 | a | 72.67 | 66.87 | 42.17 | 27.52 | 60.12 | ||||||||||||
1974 | 25.71 | 38.00 | 49.77 | 64.27 | 71.61 | 83.40 | 94.63 | a | 84.13 | a | 77.40 | 69.65 | 46.03 | 36.16 | 61.73 | |||||||||||
1975 | 29.45 | 26.93 | 38.52 | 51.90 | 77.03 | 81.30 | 93.81 | 86.42 | 73.57 | 67.97 | 45.93 | 30.00 | 58.57 | |||||||||||||
1976 | 27.94 | 42.31 | 48.10 | 66.60 | 74.68 | 86.27 | 92.18 | c | 92.68 | 80.40 | 58.97 | a | 42.57 | ----- | z | 64.79 | a | |||||||||
1977 | 19.68 | 41.75 | 46.39 | 68.43 | 80.65 | 85.07 | a | 91.97 | 82.55 | 74.70 | 61.55 | 42.03 | 26.94 | 60.14 | ||||||||||||
1978 | 13.00 | ----- | z | 41.80 | f | 57.37 | 72.71 | 82.48 | a | 85.50 | a | 85.90 | 82.70 | 65.48 | ----- | z | ----- | z | 68.14 | d | ||||||
1979 | 12.81 | 20.43 | 38.52 | 56.90 | ----- | z | 82.77 | 85.13 | 82.39 | ----- | z | 63.23 | a | 42.00 | 39.90 | 52.41 | b | |||||||||
1980 | ----- | z | 28.24 | 44.19 | 66.40 | ----- | z | ----- | z | ----- | z | ----- | z | 81.07 | 63.65 | ----- | z | 33.23 | 52.80 | f | ||||||
1981 | ----- | z | 41.00 | 55.55 | ----- | z | 73.06 | 85.00 | 87.29 | 83.65 | ----- | z | ----- | z | ----- | z | ----- | z | 70.92 | f | ||||||
1982 | ----- | z | 31.32 | c | ----- | z | 58.39 | b | 71.24 | f | ----- | z | 88.60 | f | 86.24 | j | 72.31 | d | 59.63 | d | 40.66 | a | ----- | z | 52.46 | g |
1983 | 30.10 | b | 32.50 | d | 40.77 | e | 52.61 | l | 69.11 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.46 | i |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 88.58 | s | 89.08 | g | 71.61 | g | 60.39 | c | 49.04 | e | 30.97 | b | 46.80 | i |
1985 | 24.84 | f | 28.87 | e | 49.90 | a | 68.52 | i | ----- | z | 78.80 | e | 87.88 | g | 80.38 | g | 70.17 | f | 61.32 | f | 29.90 | a | 22.31 | e | 41.95 | g |
1986 | 33.61 | h | 26.73 | f | 52.35 | h | 59.59 | a | 72.84 | 83.76 | a | 87.61 | 80.48 | 70.67 | 62.61 | 40.86 | a | 38.84 | 66.36 | c | ||||||
1987 | 36.52 | 45.96 | 49.57 | a | 70.43 | 80.00 | 86.47 | 88.61 | 82.57 | a | 76.03 | 60.17 | a | 47.40 | 32.84 | 63.05 | ||||||||||
1988 | 21.06 | 25.93 | 50.17 | a | 63.73 | 79.20 | a | 91.63 | 90.74 | 88.23 | 79.60 | 60.52 | 47.10 | 35.81 | 61.14 | |||||||||||
1989 | 40.17 | a | 23.04 | a | 42.10 | 64.73 | 73.74 | 82.23 | 90.03 | 86.19 | 75.83 | 66.35 | 43.23 | 21.90 | 59.13 | |||||||||||
1990 | 41.23 | 40.21 | 50.90 | 63.00 | 69.10 | 85.00 | 85.52 | 86.23 | 83.23 | 64.13 | 48.79 | a | 27.16 | 62.04 | ||||||||||||
1991 | 24.26 | 42.11 | 48.13 | 60.53 | 70.55 | 83.07 | 85.97 | 85.77 | 74.63 | 59.39 | 33.48 | a | 34.42 | 58.53 | ||||||||||||
1992 | 35.16 | 36.79 | 48.35 | 52.60 | 73.13 | 77.07 | 73.81 | 75.06 | 71.53 | 60.65 | 35.17 | 27.71 | 55.59 | |||||||||||||
1993 | 21.90 | 21.32 | 36.71 | 53.10 | 66.94 | 73.77 | 78.26 | 79.90 | 65.70 | 58.71 | 38.53 | 29.13 | 52.00 | |||||||||||||
1994 | 15.00 | 21.36 | 45.52 | 58.53 | 73.10 | 79.63 | 80.32 | 79.29 | 74.70 | 62.32 | 45.53 | 28.10 | 55.28 | |||||||||||||
1995 | 22.16 | 32.21 | 40.81 | 48.73 | 61.87 | 78.67 | 86.10 | a | 84.87 | 71.40 | 56.35 | 35.60 | 30.39 | 54.10 | ||||||||||||
1996 | 20.42 | 32.14 | 36.23 | 54.27 | 63.39 | 80.52 | a | 80.29 | 80.71 | 68.63 | 61.06 | 31.40 | 17.87 | 52.24 | ||||||||||||
1997 | 15.74 | 28.82 | 39.29 | 51.90 | a | 64.06 | 81.17 | 83.29 | 80.00 | 75.53 | 64.83 | a | 39.30 | 35.35 | 54.94 | |||||||||||
1998 | 29.52 | 42.04 | 35.00 | b | 57.23 | 74.65 | 75.00 | 83.32 | 81.74 | 81.70 | 61.00 | 44.97 | 37.03 | a | 58.60 | |||||||||||
1999 | 23.40 | a | 39.59 | a | 45.45 | 56.30 | 69.67 | a | 77.37 | 86.48 | 82.52 | 73.66 | a | 63.15 | d | 57.33 | 37.03 | 59.33 | ||||||||
2000 | 32.00 | 42.00 | 50.55 | 57.60 | 71.87 | 78.83 | 84.35 | 83.16 | 75.57 | 64.35 | 32.27 | 18.50 | a | 57.59 | ||||||||||||
2001 | 28.84 | 22.64 | 34.03 | 59.17 | a | 70.87 | 80.43 | 85.50 | a | 84.74 | 73.27 | 61.19 | 55.70 | 32.80 | a | 57.43 | ||||||||||
2002 | 34.10 | 42.82 | 33.34 | b | 58.73 | 67.58 | 85.07 | a | 89.35 | 82.58 | 74.43 | 52.52 | 44.93 | a | 36.68 | 58.51 | ||||||||||
2003 | 28.55 | 32.46 | b | 43.97 | 59.53 | 66.87 | 76.33 | 85.87 | a | 85.81 | 75.10 | 66.43 | a | 41.96 | b | 33.93 | a | 58.07 | ||||||||
2004 | 28.03 | b | 28.28 | 49.84 | 61.90 | 68.03 | 75.10 | 81.84 | 78.58 | 76.77 | 62.06 | 48.60 | 35.81 | 57.90 | ||||||||||||
2005 | 23.50 | a | 40.64 | 45.23 | 63.33 | 67.71 | 81.83 | 87.52 | 84.06 | 80.90 | 63.06 | 51.38 | a | 25.40 | a | 59.55 | ||||||||||
2006 | 39.58 | 35.52 | a | 42.94 | 63.53 | 72.65 | 82.83 | 91.00 | 82.77 | 69.33 | 58.29 | 46.17 | 36.77 | 60.12 | ||||||||||||
2007 | 27.71 | 22.04 | a | 49.13 | 54.93 | 75.26 | 81.53 | 88.19 | 82.48 | 77.47 | 65.27 | a | 46.53 | 28.84 | 58.28 | |||||||||||
2008 | 25.35 | 24.00 | 40.03 | 53.43 | 63.50 | a | 78.52 | a | 85.90 | a | 83.06 | 75.47 | 58.55 | 43.67 | 25.77 | 54.77 | ||||||||||
2009 | 24.67 | a | 36.86 | 42.87 | a | 55.43 | 69.29 | 78.23 | 79.80 | a | 81.63 | a | 74.93 | a | 50.61 | 54.77 | d | 23.20 | a | 56.02 | ||||||
2010 | 22.96 | f | 22.44 | a | 46.68 | c | 66.04 | e | 69.09 | h | 79.33 | i | 85.27 | i | 84.48 | j | 73.28 | l | 66.16 | l | 45.11 | k | 28.14 | j | 45.05 | i |
2011 | 22.24 | n | 29.57 | g | 42.84 | l | 55.15 | j | 69.19 | j | 81.69 | n | 89.48 | j | 84.27 | i | 74.00 | l | 67.20 | k | 49.80 | j | 36.74 | l | ----- | z |
2012 | 37.42 | l | 37.79 | j | 64.24 | j | 65.27 | h | 75.32 | i | 85.91 | h | 97.87 | p | 90.40 | f | 78.72 | e | 58.35 | 46.50 | 30.81 | 53.60 | h | |||
2013 | 28.58 | 30.46 | 36.32 | 50.23 | 69.00 | 79.72 | a | 83.65 | 82.28 | b | 80.23 | 58.03 | a | 43.83 | 21.16 | 55.29 | ||||||||||
2014 | 25.55 | 24.82 | 40.73 | a | 57.66 | a | 68.42 | 78.45 | a | 80.57 | a | 80.32 | 74.00 | 64.26 | 37.67 | 31.19 | 55.30 | |||||||||
2015 | 29.55 | 27.07 | 51.74 | 64.00 | 68.68 | 79.97 | 83.35 | 80.13 | 79.20 | 65.68 | 48.57 | 33.00 | 59.24 | |||||||||||||
2016 | 25.74 | 36.00 | 50.48 | 58.53 | 70.26 | 85.03 | 85.00 | 83.74 | 76.70 | 62.81 | 53.03 | 27.71 | 59.59 | |||||||||||||
2017 | 26.71 | 41.07 | 44.89 | c | 59.60 | 68.00 | 83.33 | 87.39 | 78.45 | 76.40 | 62.52 | 47.10 | 30.13 | 58.80 | ||||||||||||
2018 | 24.19 | 24.25 | 39.81 | 47.17 | 77.71 | 82.33 | 84.06 | 81.06 | 74.50 | 55.13 | 37.93 | 32.74 | 55.07 | |||||||||||||
2019 | 25.87 | 17.71 | 36.13 | 56.03 | 62.94 | 80.53 | 85.55 | 80.10 | a | 76.90 | 53.00 | 41.83 | 29.84 | 53.87 | ||||||||||||
2020 | 26.68 | 32.59 | 47.94 | 56.87 | 66.26 | 85.00 | 87.19 | 85.97 | 75.13 | 54.97 | 50.13 | 37.29 | 58.83 | |||||||||||||
2021 | 31.48 | 21.46 | 51.74 | 58.10 | 69.45 | 88.23 | 86.39 | 86.19 | 80.20 | 65.48 | 51.33 | 35.19 | 60.44 | |||||||||||||
2022 | 29.42 | 32.61 | 44.29 | 55.07 | 68.94 | 83.23 | 87.74 | 85.42 | 80.87 | 64.87 | 42.93 | 23.52 | 58.24 | |||||||||||||
2023 | 23.55 | 28.04 | 32.65 | 57.03 | 76.32 | 85.30 | 83.06 | 85.42 | 80.27 | 61.81 | 50.93 | 41.39 | 58.81 | |||||||||||||
2024 | 21.68 | 41.86 | 48.74 | 60.44 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.43 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 25.79 | 31.99 | 43.14 | 59.57 | 71.71 | 81.91 | 86.57 | 84.57 | 76.11 | 62.49 | 44.53 | 30.72 | 58.18 | |||||||||||||
S.D. | 6.17 | 7.03 | 6.56 | 5.08 | 4.40 | 3.89 | 3.96 | 3.65 | 3.83 | 4.49 | 5.85 | 5.36 | 2.46 | |||||||||||||
SKEW | 0.32 | 0.12 | -0.05 | -0.09 | 0.01 | -0.01 | -0.41 | 0.17 | -0.49 | -0.21 | -0.29 | -0.27 | -0.60 | |||||||||||||
MAX | 41.23 | 46.43 | 59.58 | 70.43 | 80.65 | 91.63 | 94.63 | 92.68 | 83.23 | 72.97 | 57.33 | 41.39 | 63.05 | |||||||||||||
MIN | 12.81 | 17.71 | 29.19 | 47.17 | 61.87 | 73.03 | 73.81 | 75.06 | 65.10 | 50.61 | 29.90 | 17.87 | 52.00 | |||||||||||||
YRS | 65 | 70 | 69 | 69 | 67 | 69 | 68 | 67 | 67 | 69 | 68 | 67 | 55 |