YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 86.35 | ----- | z | ----- | z | 64.74 | 46.43 | 31.26 | 57.20 | h | ||||
1950 | 20.83 | a | 26.54 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 23.68 | j | |
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 | 80.65 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 80.65 | k | |
1968 | ----- | z | ----- | z | 52.42 | ----- | z | 65.61 | 78.40 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.48 | i | |||
1969 | ----- | z | ----- | z | ----- | z | 59.33 | 71.84 | ----- | z | ----- | z | ----- | z | 74.70 | 55.42 | ----- | z | 28.89 | c | 58.04 | g | ||||
1970 | 15.40 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 85.94 | ----- | z | 70.87 | ----- | z | 40.50 | ----- | z | 53.18 | h | |||
1971 | 16.48 | ----- | z | 36.42 | ----- | z | ----- | z | 82.13 | ----- | z | 81.48 | 73.57 | ----- | z | ----- | z | ----- | z | 58.02 | g | |||||
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 80.71 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 80.71 | k | |
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 | 62.72 | a | 70.45 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.59 | j | |
1977 | ----- | z | ----- | z | 47.70 | a | ----- | z | ----- | z | ----- | z | 85.55 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.62 | j | |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | 73.43 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.43 | k |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 78.26 | ----- | z | ----- | z | ----- | z | ----- | z | 78.26 | k | |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 87.92 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.35 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.35 | k | |
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 | 74.43 | 64.68 | 39.97 | a | 21.13 | 50.05 | h | |||
1990 | 36.68 | 34.29 | 47.58 | 59.86 | a | 67.06 | 80.31 | a | 83.23 | 81.45 | 75.43 | ----- | z | 49.43 | 28.87 | 58.56 | a | |||||||||
1991 | 23.06 | 35.93 | 44.42 | 60.80 | 69.58 | ----- | z | 81.19 | 81.45 | 68.43 | 56.84 | 31.33 | 28.68 | 52.88 | a | |||||||||||
1992 | 28.61 | 33.11 | a | 39.68 | 49.73 | 72.03 | 75.40 | 74.48 | 76.13 | 69.87 | 57.45 | 36.40 | 28.55 | 53.45 | ||||||||||||
1993 | 22.48 | 24.07 | ----- | z | 51.60 | 65.55 | 72.87 | 77.68 | 79.13 | 63.53 | 57.00 | 38.27 | 28.35 | 52.78 | a | |||||||||||
1994 | 13.94 | 20.54 | 42.06 | 55.27 | 71.06 | 79.57 | 78.26 | 76.84 | 72.14 | a | 60.10 | 45.10 | 31.94 | 53.90 | ||||||||||||
1995 | 23.23 | 28.04 | 40.77 | 49.43 | 65.45 | 81.03 | 82.19 | 83.19 | 69.53 | 56.65 | 32.47 | 25.45 | b | 53.12 | ||||||||||||
1996 | 19.71 | 25.21 | 32.74 | 50.53 | 63.03 | 77.00 | 79.42 | 80.67 | a | ----- | z | 60.30 | a | 32.23 | 23.04 | d | 49.44 | a | ||||||||
1997 | 18.74 | 29.27 | b | 37.13 | 53.07 | 62.74 | 80.33 | 79.26 | 76.48 | 72.07 | 59.37 | a | 35.40 | 33.16 | 53.08 | |||||||||||
1998 | 25.70 | a | 37.48 | a | 38.81 | 60.57 | 76.29 | 74.40 | ----- | z | 81.13 | 78.90 | 61.40 | a | 44.60 | 35.47 | a | 55.89 | a | |||||||
1999 | 18.87 | a | 34.96 | 42.97 | 57.40 | 69.90 | 75.90 | 84.90 | 78.65 | 71.47 | 59.00 | a | 51.37 | 32.81 | 56.52 | |||||||||||
2000 | 24.26 | 34.83 | 49.81 | 56.77 | 69.39 | 75.87 | 80.84 | 81.07 | a | 72.10 | 63.32 | 38.50 | 15.06 | 55.15 | ||||||||||||
2001 | 27.29 | 21.64 | 35.48 | 56.90 | 68.48 | 78.10 | 84.00 | 82.65 | ----- | z | 58.19 | 55.37 | 35.90 | 54.91 | a | |||||||||||
2002 | 31.48 | 36.61 | 32.42 | 54.43 | 65.55 | 79.67 | 86.26 | 79.52 | 74.23 | 50.45 | 40.27 | 32.71 | 55.30 | |||||||||||||
2003 | 22.65 | 25.64 | 40.06 | 58.17 | a | 67.32 | 77.20 | 82.29 | 83.90 | 73.30 | 60.68 | 39.57 | 32.00 | 55.23 | ||||||||||||
2004 | 19.87 | 28.21 | 43.61 | 60.43 | 65.97 | 73.83 | 80.61 | 74.74 | 76.73 | 59.81 | 45.47 | 30.94 | 55.02 | |||||||||||||
2005 | 22.39 | 33.54 | 39.45 | 61.33 | 64.00 | ----- | z | 84.77 | ----- | z | 75.97 | 62.74 | 44.80 | 23.94 | 51.29 | b | ||||||||||
2006 | 34.65 | 29.25 | 40.45 | 62.07 | 68.81 | 79.77 | 87.32 | 80.71 | 67.93 | 55.61 | 44.17 | 34.81 | 57.13 | |||||||||||||
2007 | 27.45 | 20.00 | 45.23 | 55.70 | 74.68 | 81.40 | 84.43 | a | 80.06 | 75.67 | 63.74 | 42.83 | 23.68 | 56.24 | ||||||||||||
2008 | 21.16 | 22.62 | 36.65 | 52.27 | 65.87 | 76.90 | 84.29 | 80.74 | 74.17 | 59.77 | 42.40 | 23.71 | 53.38 | |||||||||||||
2009 | 16.39 | 30.21 | 40.71 | 56.50 | 69.71 | 76.20 | 76.87 | 78.19 | 76.73 | 50.13 | 50.40 | 25.10 | 53.93 | |||||||||||||
2010 | 19.42 | 27.00 | 48.58 | 65.43 | 71.06 | 77.10 | 84.35 | 85.32 | 68.77 | 64.42 | 42.83 | 22.77 | 56.42 | |||||||||||||
2011 | 18.61 | 26.50 | 37.03 | 53.07 | 66.06 | 76.83 | 86.87 | 82.03 | 70.90 | 64.42 | 47.00 | 33.61 | 55.25 | |||||||||||||
2012 | 30.68 | 34.97 | 58.45 | 58.77 | 74.19 | 81.23 | 88.52 | 81.45 | 74.30 | 56.55 | 46.00 | 31.29 | 59.70 | |||||||||||||
2013 | 25.90 | 25.93 | 34.10 | 46.60 | 66.42 | 76.07 | 83.23 | 82.81 | 76.37 | 57.87 | 40.43 | 21.19 | 53.08 | |||||||||||||
2014 | 18.81 | 17.32 | 32.65 | 51.87 | 67.00 | 78.77 | 80.03 | 81.81 | 73.43 | b | 58.13 | 34.37 | 29.74 | 51.99 | ||||||||||||
2015 | 25.80 | a | 19.21 | 43.29 | 60.28 | a | 69.13 | 78.03 | a | 82.26 | 79.23 | 77.47 | 61.13 | 49.90 | 36.16 | 56.82 | ||||||||||
2016 | 23.16 | 31.21 | 48.13 | 56.47 | 70.32 | 79.17 | 82.74 | 81.29 | 74.17 | 61.81 | 52.63 | 27.58 | 57.39 | |||||||||||||
2017 | 26.26 | 38.00 | 40.10 | 58.30 | 66.13 | 79.67 | 82.81 | 76.32 | 76.37 | 60.97 | 41.10 | 26.52 | 56.04 | |||||||||||||
2018 | 22.32 | 25.21 | 39.61 | 45.43 | 76.90 | 79.90 | 82.68 | 80.97 | a | 73.27 | 52.65 | 33.83 | 30.94 | 53.64 | ||||||||||||
2019 | 21.77 | 20.39 | 35.87 | 54.07 | 62.73 | a | 77.33 | 82.26 | 78.29 | 73.53 | 53.42 | 35.27 | 30.77 | 52.14 | ||||||||||||
2020 | 27.48 | 29.45 | 42.94 | 53.23 | 66.70 | a | 81.17 | 85.23 | 81.77 | 69.37 | 50.77 | 48.37 | 33.10 | 55.80 | ||||||||||||
2021 | 27.94 | 19.63 | a | 48.71 | 55.43 | 68.32 | 85.67 | 83.77 | 81.87 | 74.97 | 63.81 | 44.33 | 32.84 | 57.27 | ||||||||||||
2022 | 19.71 | 23.70 | a | 38.65 | 47.93 | 69.42 | 80.13 | 82.61 | 79.32 | 73.60 | 60.29 | 43.60 | 24.00 | 53.58 | ||||||||||||
2023 | 27.55 | 29.14 | 37.29 | 53.77 | 71.16 | 82.57 | 81.94 | 81.39 | 76.20 | 60.26 | 45.50 | 39.00 | a | 57.15 | ||||||||||||
2024 | 26.13 | 41.41 | 46.35 | 55.58 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.97 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 23.50 | 28.36 | 41.58 | 55.71 | 68.67 | 78.53 | 82.64 | 80.29 | 73.18 | 59.00 | 42.50 | 29.05 | 55.10 | |||||||||||||
S.D. | 5.14 | 6.18 | 5.90 | 4.75 | 3.57 | 2.73 | 2.99 | 2.35 | 3.19 | 4.05 | 6.04 | 5.13 | 1.88 | |||||||||||||
SKEW | 0.46 | 0.13 | 0.64 | -0.22 | 0.42 | 0.17 | -0.47 | -0.42 | -0.80 | -0.58 | -0.03 | -0.48 | 0.29 | |||||||||||||
MAX | 36.68 | 41.41 | 58.45 | 65.43 | 76.90 | 85.67 | 88.52 | 85.32 | 78.90 | 64.74 | 55.37 | 39.00 | 59.70 | |||||||||||||
MIN | 13.94 | 17.32 | 32.42 | 45.43 | 62.73 | 72.87 | 74.48 | 74.74 | 63.53 | 50.13 | 31.33 | 15.06 | 51.99 | |||||||||||||
YRS | 38 | 36 | 37 | 36 | 38 | 34 | 39 | 35 | 36 | 36 | 37 | 37 | 27 |