YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.12 | o | 79.13 | a | 70.41 | c | 62.39 | c | 43.43 | g | 27.96 | g | 70.64 | i |
1947 | 29.08 | e | 23.15 | b | 35.32 | c | 50.21 | b | 60.72 | b | 73.68 | b | 82.86 | b | 87.70 | a | 72.26 | c | 69.59 | b | 33.78 | c | 26.58 | e | 53.74 | |
1948 | 19.31 | e | 25.33 | e | 37.59 | b | 60.11 | b | 69.04 | c | 77.17 | a | 84.34 | b | 82.06 | 77.20 | 59.39 | 41.27 | 25.90 | 54.89 | ||||||
1949 | 23.03 | 23.32 | 33.48 | 54.40 | 69.32 | 80.03 | 82.52 | 81.00 | 65.93 | 61.35 | 40.07 | 26.52 | 53.42 | |||||||||||||
1950 | 19.37 | a | 22.96 | 27.84 | 42.73 | 63.90 | 74.27 | 76.03 | 73.94 | 69.23 | 63.07 | a | 35.52 | a | 16.87 | 48.81 | ||||||||||
1951 | 17.84 | 23.71 | 29.35 | 46.52 | a | 69.35 | 71.23 | 78.23 | 74.19 | 64.00 | 55.19 | 30.17 | 23.29 | 48.59 | ||||||||||||
1952 | 22.19 | 29.14 | 31.61 | 55.90 | 64.52 | b | 75.83 | 80.39 | 76.55 | 71.00 | 53.74 | 43.27 | 28.48 | 52.72 | ||||||||||||
1953 | 24.03 | 24.22 | a | 34.45 | 47.50 | 67.48 | 77.73 | 79.06 | 79.31 | b | 71.30 | 67.94 | 47.07 | a | 28.97 | 54.09 | ||||||||||
1954 | 19.32 | 35.54 | 34.00 | 53.50 | 58.90 | 77.63 | 79.10 | 77.06 | 65.37 | 54.17 | a | 42.03 | 27.29 | 51.99 | ||||||||||||
1955 | 19.42 | 22.29 | 31.32 | 59.33 | 72.26 | 74.10 | 84.06 | 83.94 | 71.13 | 57.47 | a | 33.07 | c | 18.87 | 52.27 | |||||||||||
1956 | 22.87 | 22.24 | 30.81 | 48.00 | 63.55 | 78.07 | 75.06 | 77.00 | 66.53 | 65.18 | c | 38.07 | 27.19 | 51.21 | ||||||||||||
1957 | 14.03 | 26.00 | 35.52 | 53.03 | 64.19 | 74.27 | 80.94 | 76.48 | 66.87 | 56.16 | 37.55 | a | 27.06 | 51.01 | ||||||||||||
1958 | 24.13 | 19.29 | 38.06 | 54.87 | 67.19 | 70.13 | 76.97 | 78.29 | 68.63 | 58.97 | 41.87 | 18.77 | a | 51.43 | ||||||||||||
1959 | 15.07 | a | 20.25 | 36.06 | 52.07 | 69.13 | 76.63 | 79.00 | 80.74 | 69.73 | 50.32 | 30.10 | 32.65 | 50.98 | ||||||||||||
1960 | 23.23 | 26.59 | 28.29 | 53.07 | 62.71 | 72.40 | 78.77 | 78.39 | 70.30 | 57.77 | 41.17 | 23.58 | 51.36 | |||||||||||||
1961 | 21.42 | 32.50 | 38.29 | 47.53 | 64.10 | 76.83 | 79.84 | 79.10 | 68.43 | 57.72 | b | 38.33 | 22.55 | k | 54.92 | a | ||||||||||
1962 | 15.00 | 20.81 | a | 34.55 | 50.73 | 67.97 | 73.53 | 75.45 | 77.90 | 65.23 | 58.19 | 40.18 | b | 24.65 | 50.35 | |||||||||||
1963 | 10.00 | 18.54 | 38.97 | 56.20 | 62.77 | 78.13 | 82.87 | 77.39 | 68.67 | 69.06 | 46.50 | 16.87 | 52.16 | |||||||||||||
1964 | 25.94 | 29.34 | 34.73 | a | 54.37 | 70.45 | 77.07 | 81.92 | g | 73.58 | 65.52 | a | 55.03 | 43.97 | 21.55 | 50.14 | a | |||||||||
1965 | 17.52 | 20.93 | 28.19 | 45.90 | 68.32 | 73.57 | 76.90 | 74.81 | 62.37 | 57.61 | 40.53 | 30.81 | 49.79 | |||||||||||||
1966 | 11.94 | 24.21 | 40.03 | 47.86 | b | 61.26 | 77.57 | 83.29 | 74.43 | a | 69.21 | a | 56.77 | 37.47 | 24.97 | 50.75 | ||||||||||
1967 | 23.61 | 18.88 | b | 34.16 | 51.47 | 60.06 | 73.40 | 76.87 | 74.32 | 69.73 | 55.13 | 35.70 | 28.06 | 50.12 | ||||||||||||
1968 | 21.48 | 21.86 | 45.73 | a | 54.79 | a | 61.45 | 73.07 | 78.03 | 78.06 | 67.63 | 57.13 | 40.13 | 24.81 | 52.02 | |||||||||||
1969 | 16.32 | 25.82 | 32.32 | 55.23 | 67.29 | 65.93 | 78.90 | 81.45 | 69.60 | 51.65 | 38.67 | 26.00 | 50.77 | |||||||||||||
1970 | 13.74 | 23.89 | 32.16 | 53.03 | 64.71 | 76.67 | 81.19 | 79.67 | a | 68.27 | 58.48 | 37.03 | 25.48 | 51.19 | ||||||||||||
1971 | 13.13 | 22.57 | 31.23 | 52.21 | a | 63.73 | a | 78.63 | 76.52 | 76.42 | 69.77 | 62.65 | 40.07 | 25.97 | 51.07 | |||||||||||
1972 | 14.45 | 19.48 | 30.32 | 46.23 | 71.68 | 75.17 | 76.35 | 76.10 | 68.10 | 51.35 | 35.73 | 19.03 | 48.67 | |||||||||||||
1973 | 24.00 | 25.96 | 44.65 | 49.60 | 58.90 | a | 75.80 | 80.29 | 79.23 | 68.53 | 62.68 | 38.57 | 23.87 | 52.67 | ||||||||||||
1974 | 19.30 | a | 23.50 | 34.06 | 52.80 | 61.17 | a | 71.37 | 82.87 | 77.35 | 64.13 | 55.74 | 41.37 | 29.58 | 51.10 | |||||||||||
1975 | 22.65 | 24.18 | 30.42 | 44.17 | 70.13 | 73.00 | 80.55 | 78.10 | 64.07 | 59.87 | 46.33 | 25.65 | 51.59 | |||||||||||||
1976 | 16.84 | 30.34 | 36.29 | 56.03 | 64.74 | 79.13 | 83.13 | a | 80.23 | 70.23 | 52.52 | 34.00 | 16.52 | 51.67 | ||||||||||||
1977 | 7.50 | a | 26.04 | 42.42 | 59.77 | 77.10 | a | 74.26 | c | 80.97 | a | 73.87 | 66.93 | 55.61 | 39.10 | 23.07 | a | 52.22 | ||||||||
1978 | 16.63 | a | 19.04 | 35.06 | 50.47 | 70.89 | c | 74.47 | 75.87 | 78.23 | 72.67 | 53.94 | 39.67 | 22.06 | 50.75 | |||||||||||
1979 | 10.45 | b | 17.96 | 34.16 | 48.47 | 60.52 | 73.53 | 80.19 | 74.13 | 71.03 | 52.00 | 36.90 | 30.39 | 49.14 | ||||||||||||
1980 | 19.61 | 22.38 | 31.40 | a | 55.00 | 70.97 | 73.83 | 80.77 | 76.61 | 65.83 | 50.45 | 40.47 | 23.58 | 50.91 | ||||||||||||
1981 | 23.10 | 27.96 | 40.48 | 54.63 | 65.81 | 73.80 | 78.19 | 76.42 | 67.33 | 51.87 | 44.83 | 23.48 | 52.33 | |||||||||||||
1982 | 12.76 | b | 23.11 | 32.42 | 47.73 | 69.68 | 69.87 | 80.53 | a | 75.81 | 65.23 | 55.55 | 37.45 | a | 30.52 | 50.05 | ||||||||||
1983 | 25.40 | a | 30.29 | 37.77 | 47.83 | 59.87 | 75.83 | 84.61 | 81.87 | a | 69.37 | 55.84 | 40.10 | 11.60 | a | 51.70 | ||||||||||
1984 | 18.07 | a | 32.83 | 31.35 | 55.50 | 62.68 | 75.97 | 78.23 | 79.55 | 66.00 | 57.61 | 39.17 | 25.39 | 51.86 | ||||||||||||
1985 | 17.42 | 21.46 | 41.90 | 57.17 | 70.71 | 72.20 | 78.94 | 74.81 | 67.53 | 55.53 | a | 32.93 | 16.11 | d | 50.56 | |||||||||||
1986 | 22.26 | 23.00 | 39.13 | 57.63 | 69.61 | 76.10 | 79.58 | 74.26 | 67.20 | 55.32 | 35.00 | 28.90 | a | 52.33 | ||||||||||||
1987 | 25.16 | 34.57 | 43.90 | 61.03 | 70.74 | 78.87 | 82.45 | 77.00 | 70.37 | 49.52 | 43.07 | 29.58 | 55.52 | |||||||||||||
1988 | 18.60 | a | 21.10 | 37.77 | a | 55.30 | 73.90 | 82.33 | 86.03 | 82.45 | 70.37 | 50.32 | 39.13 | 25.71 | 53.59 | |||||||||||
1989 | 26.90 | 17.79 | 32.53 | a | 50.45 | a | 65.27 | a | 73.10 | 81.97 | 78.39 | 69.67 | 59.74 | 35.17 | a | 14.87 | a | 50.49 | ||||||||
1990 | 31.74 | 28.21 | 41.52 | 56.17 | 62.23 | 74.63 | 78.16 | 76.48 | 70.40 | 54.39 | 44.63 | 25.97 | a | 53.71 | ||||||||||||
1991 | 16.48 | 28.36 | 38.35 | 57.53 | 68.65 | 79.20 | 77.37 | a | 78.03 | 64.50 | 54.42 | 31.10 | 26.16 | 51.68 | ||||||||||||
1992 | 24.65 | 30.66 | 35.42 | 46.83 | 68.58 | 72.23 | 72.19 | 73.10 | 65.24 | a | 55.13 | 36.50 | 26.58 | 50.59 | ||||||||||||
1993 | 21.03 | 22.71 | 37.16 | 47.53 | 63.74 | 69.67 | 76.10 | 77.26 | 60.73 | 53.30 | a | 36.76 | a | 26.50 | a | 49.37 | ||||||||||
1994 | 10.13 | a | 18.19 | a | 38.68 | 52.03 | 67.90 | 76.69 | a | 76.03 | a | 74.48 | 70.77 | 58.10 | 43.80 | 31.03 | 51.49 | |||||||||
1995 | 22.07 | b | 24.07 | 39.42 | 45.80 | 63.76 | b | 80.00 | 79.45 | 79.70 | d | 66.17 | 54.10 | a | 29.77 | 21.84 | 50.51 | |||||||||
1996 | 18.77 | 22.52 | 29.21 | c | 48.13 | 61.53 | a | 72.93 | 74.77 | a | 77.35 | 66.97 | 56.00 | 31.90 | 23.42 | 48.63 | ||||||||||
1997 | 18.96 | c | 27.75 | 33.77 | a | 52.37 | 59.77 | 75.86 | a | 75.47 | a | 72.00 | a | 68.13 | 55.65 | 35.23 | 31.32 | 50.52 | ||||||||
1998 | 24.45 | 36.18 | 37.30 | a | 59.10 | 73.10 | 72.86 | a | 79.45 | 78.53 | a | 74.52 | c | 56.84 | 42.97 | a | 36.15 | d | 55.95 | |||||||
1999 | 17.65 | 32.48 | a | 40.06 | 56.43 | 67.90 | 74.93 | 80.90 | a | 74.30 | a | 67.53 | 55.03 | 48.79 | a | 28.52 | 53.71 | |||||||||
2000 | 21.29 | 32.21 | 48.00 | a | 53.83 | a | 67.58 | 71.63 | 76.43 | a | 77.45 | 68.37 | 59.58 | 37.97 | 16.06 | 52.53 | ||||||||||
2001 | 28.26 | 22.82 | 36.55 | 55.73 | 67.45 | b | 74.63 | 81.16 | 80.71 | 68.07 | 56.16 | 52.27 | 33.55 | 54.78 | ||||||||||||
2002 | 32.26 | 34.79 | 33.42 | 51.83 | a | 61.42 | 76.18 | b | 83.03 | 77.71 | 71.25 | b | 49.68 | 38.90 | 30.48 | 53.41 | ||||||||||
2003 | 21.23 | 24.68 | 39.97 | 54.53 | 66.67 | a | 74.48 | a | 78.65 | 81.61 | 70.33 | 57.13 | 38.21 | a | 31.27 | a | 53.23 | |||||||||
2004 | 17.55 | b | 28.50 | c | 40.47 | a | 55.80 | 63.71 | 71.90 | 77.23 | 71.87 | 73.93 | 57.41 | b | 43.21 | b | 27.96 | e | 52.46 | |||||||
2005 | 20.71 | 30.79 | 35.58 | 59.37 | 61.68 | 79.87 | 82.10 | 78.45 | 74.20 | 59.71 | 41.66 | a | 24.00 | a | 54.01 | |||||||||||
2006 | 31.97 | a | 24.64 | 38.53 | a | 61.21 | a | 67.20 | a | 77.37 | 86.03 | a | 78.10 | 65.61 | b | 52.00 | 42.86 | a | 31.74 | 54.77 | ||||||
2007 | 25.81 | 18.21 | 42.52 | 53.83 | 70.68 | 77.67 | 80.13 | 77.35 | 71.30 | 61.16 | 39.77 | 22.68 | 53.43 | |||||||||||||
2008 | 19.81 | 21.12 | c | 33.00 | 50.37 | 63.37 | a | 72.77 | 78.73 | a | 76.71 | n | 71.17 | 55.10 | 38.82 | b | 21.79 | c | 47.82 | a | ||||||
2009 | 12.45 | 26.93 | 36.77 | 52.30 | 64.74 | 71.93 | 71.88 | e | 73.42 | 71.86 | b | 47.23 | 46.79 | a | 22.94 | 49.94 | ||||||||||
2010 | 20.81 | 27.73 | b | 47.48 | 61.72 | a | 67.94 | 73.13 | 79.68 | 80.68 | 65.37 | 59.81 | 40.27 | 21.84 | 53.87 | |||||||||||
2011 | 16.26 | 24.32 | c | 33.94 | 48.07 | 62.48 | 73.43 | 81.10 | 76.90 | 65.70 | 59.35 | 43.07 | 29.94 | 51.21 | ||||||||||||
2012 | 26.06 | 31.48 | 53.90 | b | 55.30 | 69.87 | 76.87 | 84.29 | 78.23 | 70.13 | 53.19 | 42.13 | 29.16 | 55.88 | ||||||||||||
2013 | 22.52 | 22.54 | 30.74 | 42.60 | 66.16 | 72.57 | 79.19 | 79.65 | 73.10 | a | 55.10 | 36.20 | 17.06 | 49.79 | ||||||||||||
2014 | 12.90 | 13.32 | 28.00 | 46.57 | 64.55 | 76.70 | 75.42 | 76.65 | 68.23 | 54.61 | 29.70 | 27.06 | 47.81 | |||||||||||||
2015 | 19.58 | 14.36 | 39.35 | 55.97 | 67.35 | 74.20 | 78.84 | 74.06 | 74.40 | 57.77 | 46.38 | a | 34.65 | 53.08 | ||||||||||||
2016 | 20.19 | 27.76 | 43.65 | 50.87 | 67.74 | 76.57 | 79.61 | 78.71 | 71.23 | 59.16 | 50.27 | 23.57 | a | 54.11 | ||||||||||||
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 27.17 | h | ----- | z |
2020 | 27.08 | e | 28.61 | a | 41.19 | e | 52.78 | g | 64.37 | a | 78.12 | d | 81.54 | c | 78.50 | c | 66.46 | b | 48.54 | e | 47.12 | f | 32.92 | g | 57.16 | c |
2021 | 24.60 | a | 23.86 | n | 48.57 | c | 56.82 | b | 65.62 | b | 80.89 | b | 80.33 | a | 79.00 | e | 72.40 | e | 62.18 | c | 42.46 | b | 31.64 | c | 58.59 | a |
2022 | 19.64 | i | 21.83 | j | 41.40 | p | 46.12 | d | 66.62 | g | 75.86 | i | 78.81 | d | 76.90 | b | 70.78 | c | 57.04 | d | 44.04 | c | 23.29 | c | 56.71 | e |
2023 | 25.90 | k | 30.83 | d | 35.14 | b | 52.96 | f | 65.89 | m | 77.77 | d | 79.00 | b | 77.76 | b | 72.62 | a | 57.11 | c | 42.07 | b | 37.60 | k | 59.04 | d |
2024 | 24.55 | b | 39.81 | b | 47.12 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.18 | j |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 20.22 | 25.22 | 36.55 | 52.57 | 66.06 | 75.12 | 79.48 | 77.60 | 68.81 | 56.66 | 39.60 | 25.34 | 51.83 | |||||||||||||
S.D. | 5.31 | 5.26 | 5.33 | 4.64 | 3.95 | 2.95 | 2.96 | 2.83 | 3.07 | 4.40 | 4.81 | 5.02 | 1.86 | |||||||||||||
SKEW | -0.04 | 0.36 | 0.71 | -0.11 | 0.22 | -0.14 | -0.07 | 0.51 | 0.02 | 0.62 | 0.04 | -0.42 | 0.18 | |||||||||||||
MAX | 32.26 | 39.81 | 53.90 | 61.72 | 77.10 | 82.33 | 86.03 | 87.70 | 77.20 | 69.59 | 52.27 | 36.15 | 55.95 | |||||||||||||
MIN | 7.50 | 13.32 | 27.84 | 42.60 | 58.90 | 65.93 | 71.88 | 71.87 | 60.73 | 47.23 | 29.70 | 11.60 | 47.81 | |||||||||||||
YRS | 73 | 73 | 73 | 72 | 72 | 73 | 73 | 74 | 75 | 75 | 73 | 71 | 67 |