YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.78 | u | 32.42 | 32.42 | k | |
1940 | 17.29 | 26.76 | 29.77 | 44.70 | g | 58.47 | p | 73.43 | w | 79.00 | x | 64.88 | o | 70.27 | d | 57.83 | b | 31.25 | j | 26.79 | b | 38.12 | f | |||
1941 | 24.03 | b | 26.74 | e | 34.33 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.37 | i |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | 55.33 | r | 59.00 | p | 76.45 | h | 80.72 | b | 76.27 | a | 59.00 | t | 66.20 | u | ----- | z | ----- | z | 78.50 | j |
1944 | ----- | z | ----- | z | ----- | z | 46.93 | c | 69.00 | k | 75.16 | e | 77.37 | d | 77.67 | a | 61.69 | d | 53.36 | t | ----- | z | ----- | z | 67.76 | g |
1945 | ----- | z | ----- | z | ----- | z | 49.70 | c | 56.66 | b | 66.86 | i | 71.78 | h | 74.88 | g | 67.33 | i | 49.90 | j | ----- | z | ----- | z | 53.18 | j |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | 46.93 | p | 57.88 | e | 73.24 | m | 79.42 | e | 82.39 | c | 64.32 | h | 61.93 | b | ----- | z | ----- | z | 70.41 | h |
1948 | ----- | z | ----- | z | ----- | z | 51.44 | e | 61.67 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.55 | j |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.07 | b | 23.93 | b | 29.50 | j |
1971 | 13.85 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 13.85 | k |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | 42.33 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.33 | k |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.24 | a | ----- | z | ----- | z | ----- | z | 66.24 | k |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 79.42 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 79.42 | k | |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.48 | 74.55 | 66.00 | a | 51.77 | 42.17 | 24.73 | a | 55.78 | f | ||||
1991 | 18.27 | a | 29.29 | 37.87 | 54.77 | 68.32 | 77.50 | 74.65 | 76.61 | 62.80 | 51.94 | 32.83 | 26.77 | 50.97 | ||||||||||||
1992 | 25.26 | 29.93 | 35.65 | 45.90 | a | 67.06 | 70.83 | 70.90 | 71.81 | 64.03 | 52.55 | 34.37 | 27.10 | 49.62 | ||||||||||||
1993 | 22.45 | 25.18 | 39.16 | 46.50 | 61.84 | 69.73 | 76.03 | 76.67 | a | 61.13 | 50.52 | 34.83 | a | 25.90 | a | 49.16 | ||||||||||
1994 | 11.63 | a | 20.00 | 37.94 | 50.20 | 65.58 | 75.20 | 74.26 | 71.10 | 69.80 | 56.71 | 42.27 | 32.58 | 50.61 | ||||||||||||
1995 | 22.97 | 24.32 | 39.35 | 44.60 | 62.68 | 78.93 | 77.84 | 78.10 | 64.43 | 51.87 | a | 28.21 | a | 23.77 | a | 49.76 | ||||||||||
1996 | 21.52 | 24.54 | c | 29.87 | 43.63 | 59.80 | a | 72.03 | 74.26 | 75.94 | 67.76 | a | 54.55 | 33.00 | 26.55 | 48.62 | ||||||||||
1997 | 20.32 | 28.00 | 36.13 | 48.20 | 57.03 | 77.30 | 76.39 | 71.03 | 65.40 | 51.81 | 33.30 | 29.90 | 49.57 | |||||||||||||
1998 | 23.74 | 36.46 | 36.61 | 56.30 | 73.13 | 73.45 | a | 79.26 | 78.39 | 71.90 | 54.81 | 39.00 | 30.10 | 54.43 | ||||||||||||
1999 | 17.77 | 29.93 | 37.29 | 54.20 | 68.48 | 76.57 | 81.65 | 74.84 | 65.50 | 50.81 | 44.23 | 25.90 | 52.26 | |||||||||||||
2000 | 20.52 | 31.17 | 43.45 | 49.03 | 68.03 | 73.53 | 76.77 | 75.06 | 65.07 | 56.03 | 36.37 | 16.39 | 50.95 | |||||||||||||
2001 | 25.94 | 21.14 | 35.74 | 53.73 | 67.68 | 75.33 | 80.32 | 78.97 | 64.70 | 52.29 | 46.87 | 30.87 | 52.80 | |||||||||||||
2002 | 28.10 | 30.82 | 29.58 | 48.30 | 60.00 | 76.07 | 84.26 | 76.52 | 67.47 | 46.43 | a | 34.57 | 27.65 | 50.81 | ||||||||||||
2003 | 17.94 | 19.57 | 34.74 | 48.50 | 64.87 | 75.00 | 80.29 | 78.58 | 67.20 | 52.84 | 34.70 | 29.16 | 50.28 | |||||||||||||
2004 | 14.52 | 27.24 | 37.58 | 51.70 | 62.61 | 73.17 | 77.90 | 71.35 | 72.10 | 54.06 | 40.23 | 23.58 | 50.50 | |||||||||||||
2005 | ----- | z | 30.89 | 34.81 | 57.43 | 62.23 | 82.53 | 81.03 | 76.32 | 73.63 | 58.94 | 42.69 | a | 27.33 | a | 57.08 | a | |||||||||
2006 | 34.93 | a | 25.41 | a | 39.52 | 60.63 | 66.29 | 77.47 | 83.68 | 77.97 | 67.93 | 53.00 | a | 43.73 | 32.17 | a | 55.23 | |||||||||
2007 | 27.19 | 20.89 | 43.71 | 53.47 | 71.68 | 78.27 | 79.03 | 76.65 | 67.97 | 56.61 | 36.80 | 27.77 | 53.34 | |||||||||||||
2008 | 23.37 | a | 22.79 | 32.61 | 50.33 | 63.35 | 73.83 | 78.48 | 77.81 | 67.03 | 51.23 | 37.03 | a | 21.23 | a | 49.93 | ||||||||||
2009 | 17.87 | 28.67 | a | 38.16 | 50.90 | 61.75 | c | 72.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.89 | f | ||||
2010 | ----- | z | ----- | z | ----- | z | ----- | z | 80.44 | v | 72.59 | a | 80.42 | 78.93 | c | 64.38 | d | 59.81 | e | 41.11 | b | 24.04 | d | 60.18 | e | |
2011 | 18.44 | v | 26.96 | 34.48 | 47.12 | e | 61.69 | b | 73.48 | a | 82.38 | b | 78.00 | 67.13 | 59.47 | a | 42.48 | c | 29.39 | 54.78 | a | |||||
2012 | 26.13 | 30.97 | 52.48 | 54.30 | 70.32 | 77.03 | 83.94 | 77.00 | 67.47 | 53.29 | 39.63 | 30.35 | 55.24 | |||||||||||||
2013 | 23.48 | 23.07 | 31.00 | 42.83 | 65.29 | 72.87 | 78.13 | 76.45 | 70.13 | 54.23 | a | 35.53 | 16.10 | a | 49.09 | |||||||||||
2014 | 11.32 | 16.07 | 26.81 | 44.87 | 65.03 | 74.07 | 73.00 | 73.94 | 65.97 | 51.35 | 28.40 | 25.73 | a | 46.38 | ||||||||||||
2015 | 19.23 | 13.61 | 38.26 | 53.73 | 66.42 | 71.57 | 78.52 | 73.58 | 71.80 | 54.35 | 44.47 | 32.77 | 51.53 | |||||||||||||
2016 | 22.45 | 27.00 | 42.32 | 48.87 | 66.32 | 73.90 | 77.84 | 76.68 | 68.63 | 56.74 | 46.57 | 23.65 | 52.58 | |||||||||||||
2017 | 24.68 | 32.93 | 35.65 | 52.53 | 60.94 | 73.30 | 78.00 | 71.65 | 70.70 | 56.48 | 35.20 | 20.29 | 51.03 | |||||||||||||
2018 | 22.10 | 24.00 | 35.13 | 42.07 | 73.90 | 75.50 | 78.26 | 76.55 | 67.93 | 47.00 | 29.40 | 29.16 | 50.08 | |||||||||||||
2019 | 16.97 | 20.89 | 33.32 | 47.13 | 60.32 | 73.73 | 80.77 | 73.71 | 66.83 | 49.52 | 31.27 | 26.61 | 48.42 | |||||||||||||
2020 | 25.90 | 26.79 | 38.35 | 47.20 | 62.58 | 76.00 | 79.55 | 75.45 | 63.33 | 44.39 | 43.63 | 28.48 | 50.97 | |||||||||||||
2021 | 25.87 | 19.86 | 43.94 | 51.97 | 63.55 | 78.37 | 78.58 | 77.68 | 70.20 | 60.77 | 40.93 | 29.52 | 53.44 | |||||||||||||
2022 | 17.16 | 21.64 | 33.16 | 43.50 | 65.94 | 74.37 | 78.26 | 75.48 | 68.27 | 56.19 | 40.30 | 25.16 | 49.95 | |||||||||||||
2023 | 25.42 | 29.25 | 35.06 | 47.97 | 68.52 | 76.53 | 77.71 | 75.16 | 69.60 | 52.61 | 39.90 | 36.52 | 52.85 | |||||||||||||
2024 | 24.65 | 38.34 | 41.48 | 50.05 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.82 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.61 | 26.03 | 36.88 | 49.73 | 64.56 | 74.92 | 78.51 | 75.97 | 67.29 | 53.85 | 37.97 | 26.95 | 51.05 | |||||||||||||
S.D. | 5.02 | 5.34 | 4.95 | 4.37 | 4.27 | 2.62 | 2.93 | 2.53 | 2.99 | 3.96 | 5.12 | 4.32 | 2.07 | |||||||||||||
SKEW | -0.01 | -0.03 | 0.64 | 0.32 | 0.24 | 0.54 | -0.27 | -0.23 | 0.01 | -0.12 | -0.15 | -0.49 | 0.27 | |||||||||||||
MAX | 34.93 | 38.34 | 52.48 | 60.63 | 73.90 | 82.53 | 84.26 | 82.39 | 73.63 | 61.93 | 46.87 | 36.52 | 55.24 | |||||||||||||
MIN | 11.32 | 13.61 | 26.81 | 42.07 | 56.66 | 69.73 | 70.90 | 71.03 | 61.13 | 44.39 | 28.21 | 16.10 | 46.38 | |||||||||||||
YRS | 34 | 35 | 36 | 35 | 35 | 34 | 37 | 36 | 36 | 35 | 34 | 36 | 29 |