YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.10 | 34.03 | 33.34 | 35.82 | i | |||
1947 | 25.77 | 36.02 | 39.27 | 44.58 | 55.29 | 53.52 | 62.29 | 59.60 | 55.05 | 48.24 | 35.33 | 31.19 | 45.51 | |||||||||||||
1948 | 30.53 | 29.47 | 32.77 | 38.67 | 47.16 | 57.88 | 60.26 | 58.52 | a | 51.58 | 44.11 | 34.38 | 22.58 | 42.33 | ||||||||||||
1949 | 11.82 | a | 28.70 | 36.45 | 46.20 | c | 52.55 | a | 56.17 | 61.87 | 60.48 | 55.98 | 40.94 | 40.95 | 27.84 | 43.33 | ||||||||||
1950 | 21.26 | 32.78 | a | 34.90 | 40.00 | 48.21 | 54.47 | 63.53 | 62.65 | 54.65 | 45.84 | 39.62 | 36.97 | 44.57 | ||||||||||||
1951 | 25.55 | 32.88 | 32.85 | 44.60 | 49.65 | 56.92 | 63.45 | 60.02 | 56.25 | 43.50 | 34.70 | 23.55 | 43.66 | |||||||||||||
1952 | 23.10 | a | 30.91 | 32.50 | 44.35 | 50.39 | 54.12 | 64.25 | a | 61.44 | 57.65 | 50.29 | 29.35 | 27.56 | 43.83 | |||||||||||
1953 | 36.95 | 33.96 | 35.73 | 40.18 | 43.63 | 50.53 | 62.85 | 59.90 | a | 58.57 | b | 44.23 | 40.10 | 31.85 | 44.87 | |||||||||||
1954 | 29.85 | 34.80 | a | 32.29 | 42.63 | 50.47 | 51.23 | b | 62.29 | 57.11 | 51.35 | 43.02 | a | 39.37 | 27.25 | a | 43.47 | |||||||||
1955 | 23.58 | 28.09 | 33.94 | 35.95 | 46.50 | 57.57 | a | 59.26 | 62.19 | 53.10 | 46.28 | a | 33.33 | a | 29.71 | b | 42.46 | |||||||||
1956 | 27.98 | e | 26.10 | 35.81 | 43.53 | 50.82 | 53.05 | 63.56 | 59.13 | e | 54.03 | 43.21 | 35.10 | d | 30.95 | 43.61 | ||||||||||
1957 | 18.39 | 32.04 | 37.30 | a | 42.40 | a | 50.74 | 57.50 | 60.05 | 57.81 | 56.58 | 42.92 | 32.55 | a | 32.60 | a | 43.41 | |||||||||
1958 | 30.67 | a | 38.79 | 33.40 | 40.82 | 54.11 | 56.22 | 63.74 | 65.15 | 53.33 | 47.44 | 35.90 | a | 36.37 | 46.33 | |||||||||||
1959 | 33.03 | 32.54 | 36.55 | 44.12 | a | 44.94 | 57.50 | a | 65.37 | 59.73 | 51.95 | 47.05 | a | 36.80 | 26.15 | 44.64 | ||||||||||
1960 | 23.54 | c | 29.80 | a | 38.84 | 41.32 | 46.11 | 57.03 | 66.40 | 59.77 | 56.60 | 45.92 | 33.10 | 28.73 | 43.93 | |||||||||||
1961 | 33.34 | 36.31 | a | 37.61 | 42.18 | 47.48 | 61.28 | 65.00 | 66.85 | 50.10 | d | 44.89 | 32.70 | 30.94 | 45.72 | |||||||||||
1962 | 24.68 | 31.50 | 34.87 | 45.60 | 46.37 | 55.82 | 61.60 | 59.40 | a | 56.48 | 45.90 | a | 38.12 | 34.39 | 44.56 | |||||||||||
1963 | 25.73 | 40.16 | 35.84 | 37.52 | 50.82 | 54.07 | 58.48 | 60.05 | 59.18 | 46.26 | 37.08 | 31.45 | 44.72 | |||||||||||||
1964 | 28.97 | 32.29 | 34.10 | 39.55 | 46.37 | 54.28 | 63.27 | 59.15 | 51.92 | 47.40 | 33.05 | 29.87 | 43.35 | |||||||||||||
1965 | 31.42 | 35.30 | 36.02 | 43.90 | 46.97 | 55.58 | 61.84 | 60.00 | 49.71 | a | 48.60 | 36.95 | 27.16 | 44.45 | ||||||||||||
1966 | 30.39 | 32.68 | 36.82 | 43.40 | 52.42 | a | 54.32 | 59.06 | 61.35 | 56.05 | b | 44.82 | c | 37.10 | 32.85 | e | 45.11 | |||||||||
1967 | 33.02 | a | ----- | z | ----- | z | 35.56 | l | 49.80 | f | 56.94 | d | 66.07 | c | 66.98 | d | 57.98 | d | 45.50 | i | 38.67 | a | ----- | z | 53.28 | f |
1968 | ----- | z | 36.93 | g | ----- | z | ----- | z | 51.12 | o | 59.77 | o | 67.88 | j | ----- | 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 | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 30.32 | 27.15 | 28.73 | j | ||
1983 | 34.37 | a | 35.65 | b | 38.56 | 38.93 | 49.55 | a | 53.52 | a | 58.95 | 62.41 | c | 52.47 | a | 47.10 | 36.33 | 25.55 | 44.45 | |||||||
1984 | 27.23 | 34.38 | d | 40.00 | a | 40.02 | a | 48.61 | 53.83 | 65.67 | e | 63.22 | a | 52.75 | 41.89 | 34.25 | 23.32 | a | 43.76 | |||||||
1985 | 21.85 | 29.42 | b | 35.00 | 44.79 | d | 49.26 | 58.18 | 68.19 | e | 59.87 | 48.93 | a | 43.68 | a | 27.17 | 22.66 | 42.42 | ||||||||
1986 | 36.02 | 37.34 | 41.68 | 42.06 | d | 50.37 | 61.55 | 58.80 | a | 66.44 | 49.23 | 46.33 | a | 38.80 | 29.77 | c | 46.53 | |||||||||
1987 | 27.06 | 34.81 | a | 38.81 | 47.77 | 53.29 | 60.30 | b | 59.10 | 61.00 | 57.08 | 49.06 | 35.53 | 28.37 | 46.02 | |||||||||||
1988 | 27.15 | d | 37.43 | 38.16 | 45.33 | a | 48.82 | a | 58.08 | 65.23 | 62.14 | b | 54.60 | 52.90 | b | 35.77 | 25.91 | i | 47.78 | a | ||||||
1989 | 28.37 | a | 24.34 | 38.58 | 47.54 | b | 48.15 | 58.33 | a | 62.65 | a | 59.76 | 54.15 | 44.43 | a | 37.13 | 31.19 | 44.55 | ||||||||
1990 | 33.37 | 31.34 | 38.55 | b | 48.13 | 47.02 | a | 55.76 | c | 66.02 | d | 63.10 | a | 59.66 | b | 45.94 | 37.86 | a | 22.84 | c | 45.80 | |||||
1991 | 31.44 | 38.81 | g | 35.63 | a | 41.09 | a | 46.98 | d | 52.96 | b | 65.38 | b | 65.18 | c | 58.28 | a | 47.55 | a | 38.43 | a | 30.90 | f | 48.29 | b | |
1992 | 30.28 | a | ----- | z | ----- | z | 48.30 | e | 58.62 | c | 61.30 | c | 62.35 | 64.35 | 55.91 | a | 47.82 | a | 34.30 | c | ----- | z | 51.47 | c | ||
1993 | 21.30 | c | 21.02 | e | 39.39 | d | 42.40 | e | 53.17 | b | 54.41 | b | 55.65 | a | 58.79 | 55.34 | b | 48.09 | i | 29.62 | 30.80 | a | 41.99 | a | ||
1994 | 36.40 | e | 30.04 | 41.02 | d | 45.52 | e | 52.58 | 56.31 | c | 66.81 | d | 63.05 | a | 57.30 | e | 43.65 | h | 29.80 | h | 28.44 | f | 49.89 | c | ||
1995 | 33.92 | k | 39.11 | n | 35.04 | h | 41.02 | f | 48.97 | a | ----- | z | 62.83 | g | 63.34 | 57.73 | b | ----- | z | ----- | z | 30.40 | e | 50.11 | h | |
1996 | 34.24 | d | 35.24 | j | 39.34 | f | 44.11 | c | 47.74 | b | ----- | z | 64.44 | d | 63.28 | b | 53.43 | b | 45.39 | c | 39.54 | c | 32.62 | j | 49.02 | d |
1997 | 31.86 | m | 33.38 | g | 42.04 | f | 42.82 | h | 55.92 | g | 56.15 | j | 63.02 | d | 64.79 | c | ----- | z | 44.70 | h | 40.53 | l | 29.33 | j | 63.90 | j |
1998 | 36.66 | f | 34.47 | i | 39.41 | i | 41.66 | n | 46.12 | k | 56.00 | b | 66.85 | k | 66.40 | f | 56.09 | m | 42.68 | i | 36.87 | g | 26.61 | l | 56.00 | k |
1999 | 29.70 | p | 30.86 | n | 36.44 | n | 39.36 | h | 48.29 | n | ----- | z | 62.85 | g | 62.76 | j | 53.73 | f | 46.12 | s | 40.50 | m | 30.36 | j | ----- | z |
2000 | 31.58 | f | 37.04 | d | 36.75 | c | 47.23 | h | ----- | z | ----- | z | 63.95 | i | 63.79 | c | 56.08 | d | 44.59 | c | 30.17 | i | 28.73 | i | 47.65 | g |
2001 | 29.46 | f | 31.14 | g | 40.79 | g | 41.04 | f | 54.44 | e | 56.65 | g | 64.56 | g | 66.07 | d | 57.55 | j | 46.87 | h | 37.66 | h | 31.24 | j | 60.26 | j |
2002 | 30.93 | h | ----- | z | 35.27 | e | 43.69 | i | 49.36 | j | 61.17 | g | 68.29 | c | 61.13 | h | 55.12 | i | 41.28 | d | 37.09 | h | 32.77 | i | 48.28 | i |
2003 | 36.87 | e | 33.15 | d | 39.93 | j | 40.10 | i | 50.90 | f | ----- | z | 70.83 | g | 64.90 | g | 58.59 | h | 52.19 | m | 31.83 | d | 30.95 | j | 33.95 | i |
2004 | 32.15 | g | 32.61 | k | 42.48 | i | 43.57 | g | 49.75 | k | 58.90 | d | 65.84 | i | 65.43 | h | 54.15 | f | 46.52 | j | 35.26 | k | 33.06 | n | 58.90 | k |
2005 | 29.59 | i | 32.48 | g | 39.70 | f | 38.77 | h | 49.02 | j | 51.00 | i | 65.91 | h | 63.35 | h | 52.79 | i | 44.05 | k | 33.02 | j | 20.34 | i | ----- | z |
2006 | 33.45 | j | 28.97 | m | 33.64 | f | 40.24 | i | ----- | z | 62.55 | k | 69.72 | m | 60.74 | j | 56.56 | l | 45.16 | o | ----- | z | 27.29 | s | ----- | z |
2007 | 23.57 | i | 32.70 | f | 40.13 | l | 41.74 | k | 49.75 | i | 58.25 | j | 69.59 | i | 60.77 | i | 49.06 | m | 42.48 | j | 33.26 | i | 27.87 | l | ----- | z |
2008 | 26.18 | i | 30.67 | k | 35.79 | s | 35.57 | i | 48.73 | p | 53.13 | g | 61.36 | q | 64.54 | c | 56.33 | c | 46.39 | i | 39.55 | h | 28.09 | h | 60.43 | j |
2009 | 32.83 | d | 34.64 | 36.48 | f | 43.56 | f | 54.09 | d | 58.02 | d | 68.43 | d | 63.70 | h | 60.44 | f | 44.33 | d | 36.54 | g | 24.50 | d | 45.26 | e | |
2010 | 36.40 | b | 36.83 | b | 38.81 | d | 41.17 | c | 47.94 | f | 58.46 | f | 65.87 | e | 64.93 | i | 57.27 | f | 49.96 | g | 36.19 | f | 30.61 | d | 41.61 | f |
2011 | 29.69 | d | 32.55 | f | 38.16 | c | 40.85 | g | 47.54 | f | 56.36 | e | 63.61 | l | 63.61 | 58.47 | a | 44.76 | 32.37 | c | 25.65 | 43.63 | d | |||
2012 | 30.48 | 32.05 | 36.05 | 43.80 | 49.08 | 53.23 | 64.87 | 64.90 | 57.63 | 44.63 | 36.68 | 26.88 | a | 45.03 | ||||||||||||
2013 | 22.19 | 32.21 | 38.23 | 41.55 | 49.77 | 57.97 | 67.90 | 62.29 | 54.82 | 40.42 | 35.18 | 20.82 | 43.61 | |||||||||||||
2014 | 31.52 | 34.30 | 38.84 | 43.27 | 50.53 | 56.63 | 68.56 | 63.50 | 57.08 | 48.31 | 35.38 | 33.85 | 46.82 | |||||||||||||
2015 | 33.50 | e | 37.79 | 41.55 | 41.15 | 50.65 | 63.72 | 65.37 | 64.31 | 54.48 | 50.63 | 30.03 | 28.42 | 46.80 | ||||||||||||
2016 | 28.45 | 37.95 | 38.94 | 47.48 | 51.50 | 58.73 | 63.05 | 63.97 | 53.38 | 45.95 | 39.87 | 22.76 | 46.00 | |||||||||||||
2017 | 18.87 | 32.95 | 41.10 | 40.42 | 51.15 | 59.45 | 69.48 | 66.82 | 56.21 | a | 42.15 | 36.45 | 26.63 | 45.14 | ||||||||||||
2018 | 34.97 | 31.04 | 35.61 | 43.22 | 54.55 | 57.67 | 67.37 | 64.03 | 53.28 | 44.52 | 33.57 | 26.40 | 45.52 | |||||||||||||
2019 | 32.19 | 26.46 | a | 32.74 | 45.35 | 50.95 | 57.00 | a | 63.66 | 65.60 | 53.93 | 38.74 | 34.00 | 28.97 | 44.13 | |||||||||||
2020 | 32.76 | 31.71 | 34.90 | 44.10 | 51.24 | 57.62 | 65.29 | 65.81 | 58.62 | 46.50 | 32.70 | 28.45 | 45.81 | |||||||||||||
2021 | 30.58 | 33.29 | 35.45 | 43.67 | 50.89 | 63.93 | 70.32 | 64.53 | 55.87 | 44.66 | 37.83 | 30.40 | 46.79 | |||||||||||||
2022 | 31.17 | a | 31.71 | 39.63 | 38.10 | 49.05 | i | 57.37 | 68.98 | 68.52 | 58.10 | 48.39 | 22.58 | 22.92 | 44.32 | a | ||||||||||
2023 | 27.95 | 28.73 | 30.32 | 41.73 | 53.21 | 58.80 | 67.98 | 65.11 | 53.63 | 44.68 | a | 34.52 | 33.44 | 45.01 | ||||||||||||
2024 | 34.08 | 34.40 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.24 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.08 | 32.70 | 36.71 | 42.88 | 50.13 | 56.77 | 64.04 | 62.60 | 55.06 | 45.37 | 35.03 | 28.61 | 44.69 | |||||||||||||
S.D. | 5.39 | 3.84 | 2.69 | 2.89 | 3.00 | 2.86 | 3.31 | 2.75 | 2.69 | 2.83 | 3.57 | 3.89 | 1.24 | |||||||||||||
SKEW | -0.85 | -0.63 | -0.16 | -0.12 | 0.30 | 0.31 | -0.28 | -0.01 | -0.46 | 0.06 | -0.97 | -0.01 | -0.02 | |||||||||||||
MAX | 36.95 | 40.16 | 41.68 | 48.30 | 58.62 | 63.93 | 70.32 | 68.52 | 59.66 | 52.90 | 40.95 | 36.97 | 46.82 | |||||||||||||
MIN | 11.82 | 21.02 | 30.32 | 35.95 | 43.63 | 50.53 | 55.65 | 57.11 | 48.93 | 38.74 | 22.58 | 20.82 | 42.33 | |||||||||||||
YRS | 51 | 47 | 47 | 46 | 47 | 49 | 50 | 52 | 50 | 48 | 49 | 46 | 38 |