YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 31.50 | 40.52 | 36.77 | 52.73 | 64.66 | 70.10 | a | 78.19 | 77.11 | 63.98 | a | ----- | z | 43.03 | 36.69 | 54.12 | a | |||||||||
1971 | 33.55 | 36.02 | 43.98 | 52.38 | 60.77 | 75.07 | a | 76.57 | a | 71.98 | 63.75 | 54.69 | m | 43.67 | 35.69 | 53.95 | a | |||||||||
1972 | 32.54 | c | 39.20 | b | ----- | z | 54.18 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.40 | e | ----- | z | 40.08 | h |
1973 | ----- | z | 37.75 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.85 | u | 44.96 | b | 35.61 | d | 39.44 | i | |
1974 | 33.07 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.98 | 32.93 | b | 36.33 | i | |
1975 | 33.92 | f | 34.96 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.21 | d | 54.12 | s | 42.75 | h | 40.81 | d | 46.66 | i |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.48 | g | 40.97 | 40.72 | d | 40.84 | j | |
1981 | 35.98 | 35.14 | g | 43.18 | 58.73 | 59.37 | 72.60 | 72.82 | 68.56 | 63.58 | ----- | z | ----- | z | ----- | z | 59.35 | d | ||||||||
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.02 | d | 74.98 | g | 73.80 | f | 67.32 | 55.81 | j | 37.90 | 33.82 | 51.26 | h | |||
1983 | 34.48 | 36.66 | 42.03 | 46.38 | 56.53 | 67.32 | 78.58 | 79.03 | 68.13 | 59.60 | 42.55 | 20.88 | a | 52.68 | ||||||||||||
1984 | 27.55 | a | 35.69 | 38.23 | 47.73 | 61.94 | 70.42 | 75.32 | 74.73 | 67.48 | a | 51.31 | 44.95 | 37.53 | b | 52.74 | ||||||||||
1985 | 31.53 | b | ----- | z | 46.39 | 57.33 | 69.24 | 77.30 | 81.27 | 79.38 | a | 72.08 | f | 57.95 | k | 39.13 | g | 31.15 | 59.20 | d | ||||||
1986 | 43.68 | 43.20 | 55.63 | 59.73 | b | 65.63 | 77.60 | 81.00 | 78.44 | 69.62 | 56.21 | b | 42.53 | 34.98 | 59.02 | |||||||||||
1987 | 36.62 | b | 40.93 | 42.08 | 55.95 | a | 66.77 | 75.13 | 79.15 | 76.40 | b | 68.02 | 55.98 | 43.92 | 33.08 | 56.17 | ||||||||||
1988 | 31.02 | b | 38.55 | 45.84 | i | 55.66 | a | 64.77 | 76.95 | 80.63 | 79.13 | 66.24 | c | 57.23 | 45.87 | 38.02 | a | 57.64 | a | |||||||
1989 | 38.43 | a | 30.96 | b | 52.11 | d | 57.84 | a | 64.42 | 67.46 | b | 74.73 | 74.18 | 64.89 | c | 55.50 | 43.43 | a | 28.05 | 54.33 | ||||||
1990 | 33.31 | 33.59 | 42.31 | 53.17 | 58.65 | a | 75.70 | 74.45 | 72.87 | 69.68 | 53.90 | 46.10 | 28.03 | a | 53.48 | |||||||||||
1991 | 28.27 | 40.36 | 44.42 | 52.83 | 64.35 | 72.70 | 74.39 | 73.83 | b | 65.27 | 55.03 | 37.48 | a | 34.10 | 53.59 | |||||||||||
1992 | 35.15 | 40.52 | 46.61 | 56.60 | a | 62.17 | a | 66.63 | 73.85 | 70.75 | a | 67.33 | a | 55.79 | 36.28 | 31.50 | 53.60 | |||||||||
1993 | 28.31 | 32.55 | 43.47 | 51.57 | 61.13 | 70.75 | 76.58 | 73.69 | 64.06 | d | 52.04 | c | 37.76 | a | 36.05 | 52.33 | ||||||||||
1994 | 33.74 | 34.67 | b | 46.63 | 52.76 | a | 63.39 | 76.88 | 76.45 | 76.24 | 67.29 | a | 54.37 | 41.93 | 38.85 | a | 55.27 | |||||||||
1995 | 34.62 | a | 41.80 | 43.78 | a | 47.95 | 56.65 | a | 67.96 | c | 74.19 | d | 77.62 | c | 67.14 | b | 54.22 | a | 45.85 | c | 36.07 | a | 53.99 | |||
1996 | 31.80 | a | 36.59 | a | 39.06 | 53.33 | c | 66.95 | 73.14 | a | 74.37 | a | 72.10 | b | 63.52 | d | 53.02 | c | 40.50 | b | 34.23 | 53.22 | ||||
1997 | 32.34 | b | 35.34 | 46.31 | 45.30 | 60.60 | 71.07 | b | 77.65 | a | 73.15 | a | 67.93 | 54.07 | b | 38.97 | 30.39 | 52.76 | ||||||||
1998 | 35.77 | 38.80 | a | 39.11 | 49.55 | 65.44 | 71.48 | a | 77.85 | 72.76 | 72.03 | 57.83 | e | 46.00 | 33.76 | 55.03 | ||||||||||
1999 | 36.97 | b | 42.18 | 41.69 | 50.98 | 59.39 | 69.33 | 76.65 | 73.90 | 64.35 | 53.68 | a | 47.97 | 37.40 | 54.54 | |||||||||||
2000 | 35.27 | 44.09 | a | 43.85 | 53.50 | 65.21 | 70.88 | 77.05 | c | 79.06 | 69.15 | 55.37 | 37.03 | 31.58 | 55.17 | |||||||||||
2001 | 29.60 | 34.85 | a | 41.31 | 55.57 | a | 61.92 | 70.83 | a | 79.60 | 74.75 | a | 67.00 | 54.29 | 44.71 | b | 35.70 | a | 54.18 | |||||||
2002 | 33.26 | 35.52 | b | 39.60 | a | 55.57 | 62.48 | 76.82 | 77.71 | 75.81 | 66.53 | 50.44 | 40.69 | f | 32.89 | 55.15 | a | |||||||||
2003 | 36.18 | 33.61 | a | 44.48 | 54.24 | a | 63.11 | 67.24 | a | 81.34 | b | 77.72 | a | 64.68 | 59.05 | 40.88 | b | 36.17 | a | 54.89 | ||||||
2004 | 34.39 | 33.28 | 48.89 | 52.57 | 66.15 | 70.67 | 72.77 | 71.58 | 67.80 | 55.35 | 40.30 | b | 37.48 | a | 54.27 | |||||||||||
2005 | 35.68 | 37.98 | a | 42.85 | 51.88 | a | 61.67 | a | 71.14 | a | 77.27 | 74.02 | 70.55 | a | 55.88 | a | 44.85 | 33.29 | 54.76 | |||||||
2006 | 39.44 | 34.31 | a | 42.98 | 57.60 | a | 65.75 | a | 75.21 | a | 78.27 | 74.89 | 60.70 | b | 53.55 | a | 45.43 | b | 32.45 | b | 55.05 | |||||
2007 | 22.42 | 31.96 | a | 48.37 | a | 49.02 | a | 61.94 | 69.28 | 76.37 | 78.84 | 69.45 | 57.37 | a | 43.88 | a | 30.18 | 53.26 | ||||||||
2008 | 32.35 | 35.12 | 43.69 | 50.97 | 62.65 | 74.45 | a | 79.03 | 74.60 | a | 66.22 | 55.81 | b | 48.43 | 37.10 | a | 55.04 | |||||||||
2009 | 39.06 | 42.98 | 46.76 | 52.22 | a | 62.85 | 73.17 | a | 77.09 | c | 75.05 | a | 65.00 | 50.05 | b | 48.32 | 33.19 | b | 55.48 | |||||||
2010 | 36.00 | c | 33.43 | 44.42 | 55.86 | a | 61.23 | a | 76.68 | h | 77.91 | b | 75.57 | a | 71.85 | 58.60 | b | 45.07 | 38.66 | 54.42 | a | |||||
2011 | 34.44 | 34.67 | a | 46.52 | a | 56.13 | 62.05 | a | 77.05 | 83.89 | d | 81.90 | b | 68.50 | a | 56.42 | 45.54 | c | 31.19 | b | 56.52 | |||||
2012 | 39.95 | a | 39.40 | c | 52.48 | b | ----- | z | 65.27 | 76.33 | 78.95 | a | ----- | z | 65.85 | ----- | z | 48.78 | 37.53 | 56.06 | c | |||||
2013 | 34.11 | 36.41 | 44.90 | 48.27 | 63.47 | a | 75.20 | b | 78.11 | 75.76 | 70.63 | 54.32 | 42.68 | 34.89 | 54.90 | |||||||||||
2014 | 36.97 | a | 37.09 | 45.42 | a | 55.91 | b | 62.68 | 74.03 | a | 77.26 | 73.72 | v | 66.94 | d | 58.24 | 41.60 | a | 37.15 | 53.94 | a | |||||
2015 | 35.97 | 37.50 | 48.08 | 54.55 | 59.27 | a | 74.32 | 76.58 | 74.55 | a | 71.25 | 58.24 | 42.23 | 34.85 | 55.62 | |||||||||||
2016 | 36.37 | 42.69 | 45.94 | 53.48 | 59.97 | 73.73 | 78.65 | 73.53 | 68.17 | 60.21 | 49.75 | 34.66 | 56.43 | |||||||||||||
2017 | 36.48 | 45.64 | 50.73 | 54.00 | 59.47 | 72.24 | a | 76.69 | 70.32 | 66.83 | a | 55.40 | 48.17 | 35.55 | 55.96 | |||||||||||
2018 | 35.77 | 35.88 | 46.39 | 49.63 | 67.97 | 75.62 | 76.66 | 72.87 | 67.65 | 51.94 | 39.92 | 35.16 | 54.62 | |||||||||||||
2019 | 35.68 | 33.52 | 40.92 | 53.13 | 57.08 | 69.10 | 77.92 | 77.10 | 72.75 | 48.97 | 39.80 | 36.19 | 53.51 | |||||||||||||
2020 | 34.68 | 32.16 | 47.08 | 51.28 | 63.58 | g | 77.60 | 78.76 | 76.08 | 64.00 | 52.34 | 47.73 | 35.03 | 54.25 | a | |||||||||||
2021 | 34.29 | 26.36 | 43.79 | 50.92 | 61.13 | 72.40 | 75.85 | 76.22 | a | 71.27 | 56.77 | 46.73 | 41.45 | 54.77 | ||||||||||||
2022 | 31.74 | 30.77 | 42.65 | 53.33 | 63.93 | a | 72.33 | 77.79 | 76.83 | k | 67.31 | v | 57.76 | 39.72 | 32.82 | 50.28 | b | |||||||||
2023 | 33.05 | 34.75 | 42.18 | 52.25 | 65.34 | 71.43 | 79.29 | 77.06 | 72.42 | 60.53 | 49.20 | 40.20 | d | 56.48 | ||||||||||||
2024 | 27.90 | 41.26 | 44.76 | 54.78 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.97 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 34.07 | 36.87 | 44.61 | 53.06 | 62.68 | 72.56 | 77.40 | 75.20 | 67.30 | 55.30 | 43.28 | 34.70 | 54.66 | |||||||||||||
S.D. | 3.65 | 4.03 | 3.79 | 3.25 | 2.98 | 3.29 | 2.32 | 2.80 | 2.80 | 2.78 | 3.77 | 3.69 | 1.40 | |||||||||||||
SKEW | -0.49 | 0.06 | 0.57 | -0.26 | -0.10 | -0.19 | 0.23 | 0.02 | 0.09 | -0.21 | -0.30 | -1.01 | 0.74 | |||||||||||||
MAX | 43.68 | 45.64 | 55.63 | 59.73 | 69.24 | 77.60 | 83.89 | 81.90 | 72.75 | 60.53 | 49.75 | 41.45 | 59.02 | |||||||||||||
MIN | 22.42 | 26.36 | 36.77 | 45.30 | 56.53 | 66.02 | 72.77 | 68.56 | 60.70 | 48.97 | 34.40 | 20.88 | 52.33 | |||||||||||||
YRS | 47 | 46 | 44 | 44 | 43 | 44 | 44 | 41 | 44 | 39 | 46 | 48 | 33 |