YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 78.00 | a | 66.03 | 59.10 | ----- | z | 27.25 | c | 57.60 | h | ||
1944 | 28.42 | 20.55 | 28.23 | 49.77 | 64.06 | 71.73 | 77.42 | 75.81 | 64.10 | 57.71 | 36.50 | 21.65 | 49.66 | |||||||||||||
1945 | 14.77 | a | 21.68 | 40.90 | 44.50 | 55.61 | 67.83 | 74.84 | 74.74 | 62.17 | 55.35 | 30.20 | 15.61 | 46.52 | ||||||||||||
1946 | 17.90 | 16.82 | 44.13 | 53.83 | 61.42 | 73.21 | a | 78.90 | 74.52 | 65.40 | 52.87 | 37.13 | 20.48 | 49.72 | ||||||||||||
1947 | 21.47 | a | 13.82 | 29.29 | 45.20 | 57.32 | 70.50 | 80.71 | c | 80.42 | 65.83 | 62.87 | 29.70 | 19.71 | 48.07 | |||||||||||
1948 | 13.48 | 16.24 | 31.71 | 50.67 | 64.97 | 72.37 | 78.84 | 79.68 | 75.83 | 59.06 | 37.62 | a | 22.00 | 50.21 | ||||||||||||
1949 | 15.86 | c | 13.63 | a | 25.45 | b | 51.63 | c | 65.00 | 74.00 | 77.97 | 78.65 | 63.23 | 53.68 | 39.37 | 19.06 | 48.13 | |||||||||
1950 | 3.13 | 17.22 | a | 25.61 | 37.70 | 56.50 | a | 71.27 | 75.61 | 72.58 | 68.00 | a | 54.23 | 31.11 | b | 14.39 | 43.95 | |||||||||
1951 | 10.67 | d | 19.89 | a | 26.57 | a | 44.13 | 67.73 | a | 70.04 | b | 78.00 | c | 70.97 | 62.21 | b | 50.94 | 28.23 | 15.32 | 45.39 | ||||||
1952 | 13.21 | b | 26.55 | 28.08 | e | 55.79 | a | 66.62 | b | 73.80 | 77.18 | c | 75.47 | a | 68.00 | 50.06 | 38.30 | 26.97 | 50.00 | |||||||
1953 | 19.00 | 19.07 | 33.77 | 44.60 | 62.74 | 72.50 | 76.87 | 78.84 | 65.10 | 63.61 | 41.50 | 22.77 | 50.03 | |||||||||||||
1954 | 9.03 | 33.04 | a | 30.14 | b | 45.97 | 54.61 | 73.60 | 78.63 | a | 74.48 | 63.82 | b | 51.83 | a | 40.46 | b | 27.13 | a | 48.56 | ||||||
1955 | 14.94 | 16.04 | a | 25.27 | a | 58.17 | a | 70.55 | i | 75.22 | c | 81.27 | a | 80.93 | a | 66.97 | a | 55.04 | c | 26.54 | f | 13.68 | c | 48.75 | b | |
1956 | 15.79 | g | 17.95 | i | 29.83 | g | 41.93 | 62.46 | e | 78.40 | 75.00 | c | 75.71 | 63.30 | c | 63.10 | b | 37.24 | i | 22.30 | u | 65.70 | e | |||
1957 | 8.00 | n | 15.86 | u | 32.80 | a | 46.68 | b | 63.04 | f | 68.08 | d | 81.35 | e | 76.28 | f | 63.74 | c | 54.23 | 35.55 | h | 24.84 | f | 57.81 | f | |
1958 | 24.96 | f | 20.69 | b | 36.81 | 54.03 | 65.52 | 67.53 | 74.23 | 76.19 | 66.57 | 55.16 | 36.34 | a | 13.47 | a | 51.50 | a | ||||||||
1959 | 7.32 | c | 16.00 | 34.23 | 47.93 | a | 63.55 | 74.21 | b | 78.52 | 78.77 | 65.10 | 45.19 | 24.63 | 28.94 | 47.03 | ||||||||||
1960 | 16.42 | 19.76 | 24.87 | 45.87 | 63.55 | 70.97 | 78.97 | 79.10 | 67.23 | 55.80 | a | 36.67 | 19.19 | 48.20 | ||||||||||||
1961 | 16.03 | a | 27.43 | 39.03 | 42.33 | 61.00 | 78.83 | 77.97 | 81.52 | 64.23 | 55.55 | 36.77 | 17.90 | 49.88 | ||||||||||||
1962 | 10.87 | 14.82 | 31.42 | 44.23 | 62.52 | 71.60 | 73.81 | 76.07 | a | 63.60 | 58.42 | 40.10 | 23.16 | 47.55 | ||||||||||||
1963 | 5.73 | a | 15.71 | 38.39 | 52.37 | 60.87 | 76.27 | h | 81.52 | h | 76.81 | e | 70.18 | h | 69.39 | h | 43.41 | h | 13.28 | b | 37.59 | e | ||||
1964 | 24.12 | g | 26.25 | i | 28.45 | k | 50.57 | g | 69.64 | i | 71.50 | h | 81.26 | h | 72.08 | g | ----- | z | ----- | z | 38.60 | j | 12.76 | f | ----- | z |
1965 | 12.38 | b | 15.85 | a | 23.81 | 46.60 | 62.10 | 71.90 | 75.48 | 75.68 | 55.33 | 55.23 | 34.03 | 27.58 | 46.33 | |||||||||||
1966 | 1.74 | 15.68 | 37.23 | 43.40 | 56.97 | a | 74.40 | 81.62 | b | 73.17 | b | 68.19 | d | 52.33 | a | 31.07 | b | 19.48 | 46.27 | |||||||
1967 | 16.47 | a | 13.86 | 34.65 | 44.37 | 56.97 | 70.90 | 77.83 | b | 76.23 | 70.23 | 51.61 | 34.70 | 22.68 | 47.54 | |||||||||||
1968 | 15.47 | a | 16.59 | 41.19 | 49.03 | 59.77 | 70.33 | 75.70 | a | 73.90 | 66.00 | 54.06 | 36.53 | 17.42 | 48.00 | |||||||||||
1969 | 7.90 | 23.43 | 29.29 | 53.52 | a | 63.90 | a | 64.77 | 76.87 | 81.00 | 67.13 | 45.48 | 36.47 | 24.42 | 47.85 | |||||||||||
1970 | 9.32 | 20.50 | 27.16 | 44.79 | a | 57.00 | 76.27 | 81.65 | 77.67 | a | 67.31 | a | 52.52 | 34.07 | 14.84 | 46.92 | ||||||||||
1971 | 5.77 | 19.93 | 30.71 | 50.03 | 61.74 | 75.17 | 74.17 | a | 76.55 | 66.50 | 55.35 | 33.21 | a | 19.13 | 47.36 | |||||||||||
1972 | 8.00 | 12.38 | 29.35 | 45.23 | 68.00 | 74.13 | 74.03 | 77.03 | 61.20 | 48.61 | 32.38 | a | 13.84 | 45.35 | ||||||||||||
1973 | 19.97 | 22.50 | 41.97 | 48.47 | 62.55 | 74.17 | 77.19 | 78.87 | 63.87 | 59.71 | 33.30 | 18.42 | 50.08 | |||||||||||||
1974 | 12.84 | 20.93 | 28.23 | 48.40 | 56.45 | 73.40 | 81.58 | 72.60 | a | 60.93 | a | 54.84 | 36.86 | a | 27.52 | 47.88 | ||||||||||
1975 | 17.94 | 18.59 | a | 27.06 | 41.67 | 65.61 | 71.73 | 81.77 | 74.84 | 63.30 | 55.39 | 40.00 | 20.81 | 48.23 | ||||||||||||
1976 | 13.19 | 29.83 | 30.90 | a | 55.77 | 65.19 | 77.00 | 79.61 | 79.58 | 68.50 | 48.39 | 31.23 | 14.13 | 49.44 | ||||||||||||
1977 | 3.87 | 24.21 | 39.52 | b | 55.03 | 76.55 | 74.30 | 78.87 | 69.87 | 62.53 | 54.94 | 32.80 | 13.03 | a | 48.79 | |||||||||||
1978 | 7.97 | 13.82 | 30.81 | 47.33 | 67.87 | 72.63 | 76.03 | 76.71 | 69.10 | ----- | z | 33.23 | 15.35 | 46.44 | a | |||||||||||
1979 | 3.48 | 11.00 | 31.53 | a | 43.40 | 54.42 | 70.67 | 78.10 | 71.97 | 66.67 | 50.10 | ----- | z | 26.35 | 46.15 | a | ||||||||||
1980 | 12.03 | 17.41 | 27.84 | 56.97 | 72.63 | a | 73.87 | 79.77 | 73.97 | 63.97 | 49.23 | 38.33 | 19.45 | 48.79 | ||||||||||||
1981 | 20.32 | 25.71 | 40.13 | 51.93 | 65.00 | 71.37 | 79.23 | 77.06 | 65.13 | 49.94 | 43.87 | 19.45 | 50.76 | |||||||||||||
1982 | 1.55 | b | 18.50 | 30.10 | 47.40 | 66.52 | 67.23 | 77.84 | 75.06 | 65.53 | 52.90 | 32.33 | 26.16 | 46.76 | ||||||||||||
1983 | 22.43 | a | 26.79 | 35.90 | 48.00 | 61.19 | 72.47 | 81.90 | 82.87 | 64.37 | c | 51.23 | 35.77 | 7.23 | 49.18 | |||||||||||
1984 | 15.23 | 31.69 | 30.13 | a | 55.03 | 61.29 | 74.00 | 80.23 | 81.94 | 62.21 | a | 54.77 | a | 35.57 | 18.32 | 50.03 | ||||||||||
1985 | 13.42 | 16.61 | 38.47 | a | 54.03 | 67.93 | a | 67.37 | 76.74 | 71.87 | a | 61.50 | 53.52 | 27.10 | a | 11.32 | 46.66 | |||||||||
1986 | 22.17 | a | 18.00 | 38.94 | 51.80 | 66.77 | 74.57 | 78.29 | 74.66 | b | 64.00 | a | 54.65 | 31.27 | 28.76 | b | 50.32 | |||||||||
1987 | 23.00 | 34.07 | a | 39.68 | 61.60 | 68.10 | 78.83 | 80.83 | a | 76.00 | 67.63 | 50.10 | a | 41.10 | 27.90 | 54.07 | ||||||||||
1988 | 11.94 | 17.07 | a | 32.90 | 52.80 | 72.32 | 83.07 | ----- | z | 77.29 | 65.33 | 51.35 | 34.20 | 21.26 | 47.23 | a | ||||||||||
1989 | 23.97 | 11.19 | a | 29.93 | a | 47.30 | 66.16 | 73.13 | 83.74 | ----- | z | 66.20 | j | 56.74 | 30.64 | b | 12.87 | 43.57 | b | |||||||
1990 | 27.29 | 25.32 | 37.87 | 52.45 | a | 63.81 | 76.70 | 80.68 | 82.45 | 73.77 | 53.45 | 39.40 | 22.76 | b | 53.00 | |||||||||||
1991 | 14.55 | 30.63 | a | 39.81 | 54.23 | 70.03 | 77.90 | a | 77.55 | 83.48 | 65.50 | 51.20 | a | 31.33 | 24.71 | 51.74 | ||||||||||
1992 | 26.29 | c | 30.00 | 36.61 | 45.97 | 68.84 | 72.13 | 71.23 | 74.81 | 65.90 | ----- | z | 32.30 | 19.26 | 49.39 | a | ||||||||||
1993 | 16.57 | a | 19.86 | 38.16 | 50.57 | 63.47 | a | 71.10 | 73.42 | 76.39 | 60.87 | 50.71 | 32.30 | 23.41 | b | 48.07 | ||||||||||
1994 | 6.78 | d | 14.04 | b | 39.70 | a | 46.62 | a | 65.03 | 71.30 | 71.17 | a | 71.74 | 65.45 | a | 55.25 | c | 38.34 | a | 28.54 | c | 47.83 | ||||
1995 | 15.14 | c | 20.23 | b | 33.53 | a | 41.00 | b | 59.50 | c | 82.34 | a | 74.32 | 75.31 | b | 62.00 | ----- | z | 22.90 | j | 11.50 | q | 51.49 | c | ||
1996 | 5.47 | l | 16.96 | c | 25.93 | a | ----- | z | 65.54 | r | 71.50 | b | 72.33 | a | 78.48 | 66.20 | 53.50 | a | 26.48 | g | 14.87 | h | 54.99 | e | ||
1997 | 7.73 | e | 23.26 | a | ----- | z | 45.44 | c | 55.14 | b | 74.20 | 75.42 | 73.33 | a | ----- | z | ----- | z | 28.74 | c | 31.00 | c | 46.03 | c | ||
1998 | 17.81 | d | 33.75 | 30.45 | b | 53.93 | 69.20 | a | 66.82 | b | 77.90 | a | 78.37 | a | 69.72 | e | 51.97 | b | 34.11 | c | 22.79 | b | 50.57 | |||
1999 | 13.59 | b | 29.56 | c | 36.63 | a | 52.74 | c | 62.87 | a | 71.90 | a | 77.33 | a | 72.55 | 60.83 | a | 50.03 | 45.79 | b | 29.65 | e | 50.29 | |||
2000 | 17.52 | d | 28.85 | c | 43.11 | d | 47.46 | b | 64.10 | a | 65.92 | e | 75.43 | c | 74.80 | a | 62.13 | 55.29 | c | 33.48 | a | 7.88 | f | 51.64 | a | |
2001 | 23.41 | d | 15.08 | d | 32.30 | a | 46.31 | a | 65.43 | a | 71.56 | e | 78.30 | a | 81.44 | d | 65.72 | a | 51.77 | a | 45.28 | a | 27.30 | d | 50.33 | |
2002 | 21.54 | c | 28.93 | 24.52 | b | 44.90 | 55.86 | b | 74.40 | 80.23 | 74.77 | a | 69.21 | a | 41.06 | 30.62 | a | 24.27 | a | 47.52 | ||||||
2003 | 14.18 | c | 14.00 | 30.20 | a | 52.66 | a | 63.43 | c | 71.40 | 77.00 | 79.35 | 65.44 | e | 54.14 | c | 29.00 | f | 27.43 | c | 49.93 | a | ||||
2004 | 8.25 | c | 27.38 | c | 38.67 | a | 51.73 | 60.60 | a | 69.69 | a | 76.81 | 70.48 | 71.54 | b | 55.66 | b | 41.14 | a | 25.41 | d | 49.78 | ||||
2005 | 15.54 | c | 26.43 | 35.26 | 57.86 | a | ----- | z | ----- | z | 81.97 | b | 76.97 | 71.50 | 56.94 | 39.82 | b | 24.00 | b | 48.63 | b | |||||
2006 | 30.17 | a | 20.16 | c | 36.55 | 59.00 | 64.90 | 76.63 | 86.87 | 79.97 | 69.17 | 50.71 | 38.17 | 30.30 | a | 53.55 | ||||||||||
2007 | 22.75 | c | 14.32 | 39.65 | 49.83 | 68.55 | 77.20 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.38 | f | |||||
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | 24.07 | 33.97 | 49.77 | 63.35 | 72.10 | 82.03 | 79.16 | 68.66 | a | 58.68 | 41.20 | 30.10 | 54.83 | a | ||||||||||
2012 | 25.03 | 27.55 | 47.39 | 54.10 | 66.32 | 75.93 | 84.71 | 78.81 | ----- | z | 48.97 | 34.50 | 21.61 | 51.36 | a | |||||||||||
2013 | 18.19 | ----- | z | 28.77 | 38.43 | 61.48 | ----- | z | 78.19 | ----- | z | 71.07 | 52.68 | 33.47 | 10.48 | 43.64 | c | |||||||||
2014 | 10.93 | p | 13.14 | 28.71 | 46.27 | 62.42 | 72.57 | 77.06 | 77.23 | 68.53 | 55.06 | 28.13 | 24.65 | 50.34 | a | |||||||||||
2015 | 20.26 | 12.07 | 38.19 | 54.40 | 64.10 | 74.80 | 79.90 | 77.58 | 73.33 | 57.45 | 42.33 | 30.23 | 52.05 | |||||||||||||
2016 | 18.97 | 26.10 | 41.87 | 47.53 | 67.29 | 73.80 | 78.42 | 78.16 | 67.40 | 53.84 | 48.20 | 21.48 | 51.92 | |||||||||||||
2017 | 20.65 | 30.07 | 35.48 | 52.30 | 62.39 | 74.13 | 79.94 | 75.68 | 67.97 | 56.03 | 32.03 | 18.10 | 50.40 | |||||||||||||
2018 | 17.45 | 17.89 | 38.81 | 42.03 | 71.32 | 74.63 | 77.71 | 76.55 | 65.17 | 44.65 | 26.17 | 25.84 | 48.18 | |||||||||||||
2019 | 12.35 | 11.25 | 29.48 | 47.00 | 57.03 | 72.40 | 78.58 | ----- | z | 65.70 | 47.19 | 29.33 | 23.26 | 43.05 | a | |||||||||||
2020 | 19.03 | 22.07 | 35.97 | 45.00 | 61.35 | 75.13 | 80.03 | 76.84 | 64.30 | 44.35 | 40.23 | 26.42 | 49.23 | |||||||||||||
2021 | 24.90 | 12.54 | 44.26 | 48.57 | 66.16 | 80.80 | 83.35 | 80.65 | 71.50 | 59.03 | 37.00 | 23.35 | 52.68 | |||||||||||||
2022 | 11.45 | 12.96 | 31.19 | 39.27 | 62.06 | 73.13 | 77.32 | 75.42 | 68.70 | 55.19 | 35.70 | 16.42 | 46.57 | |||||||||||||
2023 | 20.65 | 25.11 | 30.61 | 45.70 | ----- | z | 78.70 | 76.29 | 76.45 | 71.80 | 55.03 | 37.87 | 34.45 | 50.24 | a | |||||||||||
2024 | 19.26 | 33.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 26.13 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 15.32 | 20.70 | 33.75 | 48.86 | 63.45 | 73.21 | 78.17 | 76.71 | 66.06 | 53.47 | 35.40 | 21.65 | 48.93 | |||||||||||||
S.D. | 6.63 | 6.39 | 5.59 | 5.08 | 4.57 | 3.53 | 3.00 | 3.05 | 3.50 | 4.26 | 4.87 | 5.81 | 2.14 | |||||||||||||
SKEW | -0.07 | 0.43 | 0.20 | 0.14 | 0.08 | 0.27 | 0.11 | 0.02 | 0.18 | -0.24 | 0.23 | -0.20 | 0.26 | |||||||||||||
MAX | 30.17 | 34.07 | 47.39 | 61.60 | 76.55 | 83.07 | 86.87 | 83.48 | 75.83 | 63.61 | 48.20 | 34.45 | 54.07 | |||||||||||||
MIN | 1.55 | 11.00 | 23.81 | 37.70 | 54.42 | 64.77 | 71.17 | 69.87 | 55.33 | 41.06 | 24.63 | 7.23 | 43.95 | |||||||||||||
YRS | 71 | 74 | 74 | 75 | 71 | 73 | 73 | 72 | 72 | 71 | 67 | 71 | 53 |