YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1944 | 24.54 | c | 26.96 | b | 28.80 | c | 37.90 | f | 44.75 | e | 50.43 | g | 57.73 | c | 56.08 | g | 55.37 | c | 50.31 | d | 30.35 | c | 22.39 | h | 39.85 | d |
1945 | 26.91 | c | 28.23 | d | 28.50 | b | 32.54 | b | 46.27 | c | 48.33 | d | 58.73 | a | 59.12 | b | 49.96 | e | 47.16 | i | 27.08 | d | 24.35 | e | 39.09 | a |
1946 | 27.71 | e | 28.40 | c | 30.70 | c | 36.58 | d | 47.40 | f | 47.79 | d | 56.80 | c | 59.07 | c | 50.48 | f | 37.52 | a | 28.68 | e | 28.63 | e | 38.19 | b |
1947 | 24.80 | i | 31.71 | d | 36.29 | c | 39.33 | d | 49.05 | c | 47.09 | b | 53.80 | c | 53.45 | a | 52.05 | 39.30 | c | 30.68 | e | 27.86 | c | 41.87 | a | |
1948 | 25.15 | d | 23.72 | d | 26.80 | d | 31.57 | a | 40.50 | c | 52.80 | 52.35 | 51.65 | 48.23 | 40.55 | 29.30 | 20.55 | 36.93 | ||||||||
1949 | 14.18 | 22.89 | 30.77 | 37.42 | 47.10 | 48.00 | 53.02 | 54.85 | 52.82 | 38.63 | 38.73 | 25.19 | 38.63 | |||||||||||||
1950 | 8.63 | 24.38 | 27.42 | 32.00 | 38.87 | 48.58 | 56.06 | 58.23 | 53.68 | 38.32 | 30.52 | 31.15 | 37.32 | |||||||||||||
1951 | 21.94 | 26.52 | 26.76 | 39.48 | 43.00 | 52.97 | 56.89 | 55.29 | 54.05 | 39.16 | 29.68 | 23.02 | 39.06 | |||||||||||||
1952 | 20.61 | 26.79 | 28.56 | 37.88 | 43.97 | 46.25 | 57.65 | 56.40 | 55.77 | 50.00 | 29.97 | 26.06 | 39.99 | |||||||||||||
1953 | 32.35 | 28.30 | 29.84 | 34.02 | 40.06 | 43.68 | 55.31 | 56.03 | 51.92 | 44.98 | 33.87 | 29.71 | 40.01 | |||||||||||||
1954 | 22.08 | 27.68 | 27.45 | 31.75 | 42.40 | 43.53 | 52.15 | 50.34 | 49.27 | 40.92 | 36.32 | 25.53 | 37.45 | |||||||||||||
1955 | 25.63 | 23.89 | 23.68 | 30.63 | 36.27 | 47.45 | 51.13 | 54.40 | 49.55 | 39.82 | 24.47 | a | 22.10 | 35.75 | ||||||||||||
1956 | 22.92 | 20.50 | 27.32 | 38.32 | 46.79 | 45.52 | 58.06 | 57.29 | 51.03 | 37.74 | 29.95 | 29.85 | 38.78 | |||||||||||||
1957 | 16.21 | 26.62 | 29.69 | 37.47 | 48.34 | 49.38 | 52.08 | 52.85 | 57.28 | 39.98 | 33.00 | 29.73 | 39.39 | |||||||||||||
1958 | 27.37 | 32.61 | 30.90 | 36.15 | 51.31 | 55.13 | 62.76 | 59.85 | 49.80 | 44.90 | 29.20 | 29.69 | 42.47 | |||||||||||||
1959 | 24.63 | 25.93 | 29.84 | 35.83 | 40.19 | 49.17 | 57.82 | 52.29 | 46.35 | 41.81 | 30.75 | 26.81 | 38.45 | |||||||||||||
1960 | 22.23 | 25.60 | 30.92 | 36.48 | 39.32 | 49.25 | 60.15 | 51.52 | 51.85 | 43.63 | 30.42 | 25.00 | 38.86 | |||||||||||||
1961 | 27.81 | 29.64 | 31.11 | 33.85 | 41.79 | 55.50 | 58.34 | 61.76 | 46.50 | 39.42 | 27.55 | 24.76 | 39.84 | |||||||||||||
1962 | 26.53 | 28.64 | 29.37 | 37.83 | 37.77 | 48.87 | 54.95 | 53.15 | 52.52 | 42.63 | 32.37 | 30.27 | 39.58 | |||||||||||||
1963 | 21.76 | 36.07 | 31.97 | 34.25 | 44.47 | 47.00 | 50.92 | 56.68 | 56.45 | 42.92 | 30.95 | 26.63 | 40.01 | |||||||||||||
1964 | 26.26 | 29.36 | 28.32 | 31.47 | 38.63 | 46.32 | 54.58 | 50.95 | 47.20 | 43.23 | 28.85 | 20.71 | 37.16 | |||||||||||||
1965 | 26.77 | 28.57 | 32.48 | 37.10 | 40.18 | 49.92 | 58.79 | 56.02 | 49.22 | 46.24 | 34.30 | 25.45 | 40.42 | |||||||||||||
1966 | 25.82 | 27.25 | 30.95 | 36.70 | 42.92 | a | 46.68 | 53.65 | 55.55 | 54.37 | 41.47 | 33.33 | 29.85 | 39.88 | ||||||||||||
1967 | 28.39 | 30.39 | 28.19 | 32.20 | 42.71 | 54.58 | 57.42 | 64.77 | 56.53 | 40.77 | 32.93 | 26.35 | 41.27 | |||||||||||||
1968 | 25.15 | 33.55 | 34.34 | 33.63 | 43.71 | 48.73 | 59.32 | 53.55 | 50.65 | 37.90 | 30.67 | 19.98 | 39.27 | |||||||||||||
1969 | 15.53 | 24.52 | 32.81 | 35.32 | 47.48 | 56.02 | 54.16 | 53.32 | 50.02 | 39.26 | 33.88 | 26.56 | 39.07 | |||||||||||||
1970 | 24.00 | 31.55 | 31.18 | 30.88 | 41.73 | 53.13 | 56.48 | 57.16 | 46.68 | 39.89 | 30.27 | 23.58 | 38.88 | |||||||||||||
1971 | 27.06 | 27.89 | 26.11 | 33.90 | 42.82 | 45.98 | 59.63 | 60.48 | 46.88 | 39.87 | 31.32 | 23.89 | 38.82 | |||||||||||||
1972 | 22.40 | 26.43 | 32.35 | 30.25 | 45.42 | 49.47 | 57.29 | 59.23 | 45.77 | 42.73 | 32.72 | 21.42 | 38.79 | |||||||||||||
1973 | 21.81 | 29.75 | 31.37 | 35.98 | 43.95 | 47.30 | 56.60 | 52.47 | 50.70 | 39.69 | 26.75 | 28.48 | 38.74 | |||||||||||||
1974 | 20.84 | 28.29 | 30.05 | 34.58 | 37.68 | 50.08 | 54.06 | 58.18 | 55.97 | 46.15 | 32.53 | 29.65 | 39.84 | |||||||||||||
1975 | 26.11 | 25.18 | 27.95 | 31.57 | 40.63 | 45.15 | 57.52 | 50.06 | 54.07 | 37.76 | 29.43 | 28.42 | 37.82 | |||||||||||||
1976 | 29.65 | 27.31 | 27.79 | 35.37 | 42.15 | 45.55 | 54.56 | 53.65 | 54.62 | 43.87 | 35.48 | 31.37 | 40.11 | |||||||||||||
1977 | 27.13 | 32.27 | 29.77 | 41.45 | 39.87 | 52.45 | 53.00 | 61.44 | 46.92 | 40.39 | 27.90 | 24.71 | 39.77 | |||||||||||||
1978 | 27.37 | 28.70 | 34.69 | 36.02 | 40.29 | 52.67 | 56.27 | 54.66 | 45.95 | 44.32 | 28.02 | 21.65 | 39.22 | |||||||||||||
1979 | 16.60 | 26.18 | 34.87 | 36.68 | 44.56 | 49.38 | 56.29 | 55.81 | 53.67 | 45.27 | 28.58 | 29.58 | 39.79 | |||||||||||||
1980 | 18.71 | 27.38 | 30.16 | 40.68 | 44.37 | 46.58 | 55.40 | 52.29 | 51.17 | 44.69 | 32.78 | 32.84 | 39.76 | |||||||||||||
1981 | 29.24 | 29.55 | 35.18 | 36.30 | 42.03 | 45.15 | 54.10 | 61.29 | 51.58 | 41.97 | 34.10 | 26.16 | 40.55 | |||||||||||||
1982 | 25.69 | 25.41 | 30.76 | 33.30 | 41.60 | 53.58 | 54.71 | 55.68 | 50.83 | 39.52 | 27.33 | 24.27 | 38.56 | |||||||||||||
1983 | 30.56 | 30.57 | 35.06 | 38.35 | 45.98 | 47.35 | 51.74 | 56.58 | 46.50 | 41.60 | 31.23 | 17.48 | 39.42 | |||||||||||||
1984 | 28.45 | 29.72 | 34.58 | 33.28 | 37.98 | 46.35 | 56.71 | 55.15 | 47.22 | 36.92 | 29.12 | 21.98 | 38.12 | |||||||||||||
1985 | 22.02 | 24.91 | 30.29 | 37.45 | 43.71 | 49.25 | 62.48 | 54.85 | 46.52 | 38.00 | 19.32 | 22.82 | 37.64 | |||||||||||||
1986 | 28.74 | 28.09 | 35.61 | 34.48 | 44.16 | 53.65 | 50.52 | 61.63 | 45.98 | 46.66 | 31.60 | 24.24 | 40.45 | |||||||||||||
1987 | 23.97 | 30.39 | 33.65 | 40.08 | 45.98 | 53.55 | 52.53 | 57.66 | 55.95 | 49.53 | 34.17 | 24.11 | 41.80 | |||||||||||||
1988 | 23.97 | 32.24 | 31.89 | 37.20 | 41.85 | 48.12 | 55.37 | 56.27 | 52.03 | 49.52 | 30.73 | 28.24 | 40.62 | |||||||||||||
1989 | 27.65 | 20.12 | 29.11 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.63 | i | |||
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | 25.44 | ----- | z | 30.65 | 36.57 | 40.42 | 45.87 | 56.81 | 57.90 | 55.38 | 43.29 | 31.17 | 28.85 | 41.12 | a | |||||||||||
1992 | 28.08 | 33.02 | 40.71 | 39.88 | 50.24 | 54.43 | 56.63 | 58.42 | ----- | z | 42.27 | 29.88 | 22.77 | 41.49 | a | |||||||||||
1993 | 20.44 | 24.23 | 33.84 | 35.98 | 48.82 | 46.58 | 48.42 | 55.53 | 55.45 | 46.05 | 27.95 | 27.16 | 39.20 | |||||||||||||
1994 | 33.45 | 25.82 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 29.64 | j | ||
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.74 | 58.23 | 47.95 | 42.36 | f | 30.35 | c | 24.34 | 44.12 | g | ||||
1997 | 25.76 | 28.41 | 30.63 | 34.47 | a | 46.39 | 47.47 | 54.33 | a | 59.35 | 52.57 | b | 39.52 | 34.52 | 27.44 | 40.07 | ||||||||||
1998 | 24.44 | f | 30.02 | 32.79 | 38.82 | 42.47 | 50.23 | 60.42 | 59.03 | 57.05 | 41.35 | 32.75 | 24.81 | 42.70 | a | |||||||||||
1999 | 30.45 | 26.93 | 30.39 | 35.70 | 38.44 | 45.55 | 54.60 | 57.66 | 52.65 | 41.61 | 35.08 | 28.87 | a | 39.83 | ||||||||||||
2000 | 24.73 | 28.78 | 30.73 | 39.68 | 41.34 | 50.45 | 54.26 | 54.16 | 49.90 | 40.92 | 27.80 | 24.66 | 38.95 | |||||||||||||
2001 | 26.39 | 26.89 | 33.05 | 35.15 | 44.92 | 46.28 | 53.61 | 58.00 | 53.23 | 39.16 | 33.68 | 26.39 | 39.73 | |||||||||||||
2002 | 27.50 | 28.50 | 28.05 | 36.38 | 40.61 | 50.95 | 57.31 | 56.40 | 51.58 | 41.45 | 35.27 | 28.06 | 40.17 | |||||||||||||
2003 | 30.18 | 29.38 | 32.98 | 36.00 | 43.06 | 52.73 | 59.48 | 58.92 | 54.78 | 45.60 | 29.10 | 26.73 | 41.58 | |||||||||||||
2004 | 25.44 | 30.07 | 35.87 | 42.43 | 44.02 | 53.85 | 62.33 | a | 64.34 | 51.98 | 45.71 | 37.50 | 33.39 | 43.91 | ||||||||||||
2005 | 31.61 | 34.73 | 39.87 | 41.88 | 50.31 | 50.95 | 59.69 | 61.97 | 52.13 | 45.69 | 31.88 | 27.06 | 43.98 | |||||||||||||
2006 | 32.50 | 28.95 | 34.21 | 41.28 | 48.81 | 55.42 | 62.08 | 60.26 | 56.53 | 45.63 | 32.20 | 28.19 | 43.84 | |||||||||||||
2007 | 26.76 | 31.34 | 34.61 | 36.62 | 44.71 | 48.98 | 59.66 | 55.37 | 49.80 | 40.15 | 32.53 | 26.84 | 40.61 | |||||||||||||
2008 | 23.18 | 31.41 | 30.37 | 32.78 | 45.25 | a | 47.77 | 56.90 | 57.68 | 53.95 | 42.65 | 41.00 | 27.21 | 40.85 | ||||||||||||
2009 | ----- | z | 31.00 | l | 29.35 | u | 39.50 | g | 47.85 | 54.60 | 63.55 | 58.23 | 54.07 | 41.46 | g | 37.74 | a | 26.19 | m | 52.67 | f | |||||
2010 | 32.52 | f | 35.07 | 35.05 | 38.07 | 43.66 | 48.40 | 57.13 | 56.35 | 50.07 | 43.47 | b | 36.75 | p | 23.77 | p | 45.25 | c | ||||||||
2011 | 28.71 | 25.41 | 29.72 | b | 30.43 | g | 38.57 | h | 45.85 | 52.68 | 56.68 | 56.47 | 39.80 | i | 29.10 | 28.71 | g | 40.58 | d | |||||||
2012 | ----- | z | 26.98 | g | 29.65 | u | ----- | z | ----- | z | 47.29 | f | 55.16 | i | 59.90 | 55.62 | 48.46 | s | 30.64 | e | 25.95 | i | 48.72 | i | ||
2013 | 26.63 | a | 30.30 | f | ----- | z | 39.79 | w | 52.00 | q | 51.70 | h | 62.00 | l | 58.05 | u | 55.15 | t | 43.05 | u | 34.23 | s | 34.50 | x | 26.63 | k |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | 46.62 | w | 50.57 | i | 61.68 | n | 61.23 | i | 53.43 | i | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.30 | a | 30.56 | d | ----- | z | 38.93 | j |
2016 | ----- | z | ----- | z | 32.87 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.58 | ----- | z | ----- | z | 40.58 | k | |
2017 | ----- | z | ----- | z | 32.68 | q | 36.54 | b | ----- | z | ----- | z | 59.19 | 65.66 | b | 55.88 | 41.98 | c | 31.60 | a | 25.16 | 45.14 | e | |||
2018 | 30.16 | b | 28.00 | b | 32.65 | a | 38.45 | 50.87 | 51.38 | 62.64 | b | 61.03 | 51.96 | f | 44.26 | 35.17 | 28.06 | 42.06 | a | |||||||
2019 | 30.34 | 22.66 | 33.68 | 40.68 | k | 50.27 | 51.48 | c | 56.15 | 60.28 | a | 50.70 | 39.14 | m | ----- | z | 30.19 | 42.86 | c | |||||||
2020 | 29.48 | b | 31.63 | c | 33.27 | 40.57 | b | 47.13 | 51.05 | 58.39 | d | 58.68 | a | 58.25 | 45.41 | d | 34.00 | 29.45 | c | 43.11 | ||||||
2021 | 31.00 | d | 25.30 | e | 33.70 | c | 41.11 | c | 43.41 | b | 57.21 | a | 62.21 | 59.07 | c | 52.67 | 40.68 | 34.12 | b | 25.29 | 42.15 | |||||
2022 | 28.52 | c | 30.06 | a | 35.22 | a | 33.02 | 39.68 | a | 50.20 | 62.74 | 65.32 | 58.50 | b | 49.05 | j | 27.53 | a | 23.90 | 41.34 | a | |||||
2023 | 32.90 | f | 26.74 | a | 30.40 | a | 34.86 | i | 50.44 | e | 52.98 | c | 60.50 | d | 62.17 | b | 51.98 | c | 45.07 | c | 32.25 | ----- | z | 45.84 | c | |
2024 | 26.36 | b | 30.09 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.22 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 25.47 | 28.20 | 31.43 | 36.14 | 43.70 | 49.62 | 56.64 | 57.18 | 51.89 | 42.38 | 31.36 | 26.30 | 39.75 | |||||||||||||
S.D. | 4.55 | 3.20 | 3.13 | 3.04 | 3.68 | 3.34 | 3.38 | 3.56 | 3.46 | 3.26 | 3.36 | 3.21 | 1.70 | |||||||||||||
SKEW | -1.13 | -0.01 | 0.39 | 0.05 | 0.25 | 0.34 | 0.05 | 0.22 | -0.11 | 0.53 | -0.14 | -0.23 | 0.56 | |||||||||||||
MAX | 33.45 | 36.07 | 40.71 | 42.43 | 51.31 | 57.21 | 63.55 | 65.66 | 58.50 | 50.31 | 41.00 | 33.39 | 43.98 | |||||||||||||
MIN | 8.63 | 20.13 | 23.68 | 30.25 | 36.27 | 43.53 | 48.42 | 50.06 | 45.77 | 36.92 | 19.32 | 17.48 | 35.75 | |||||||||||||
YRS | 68 | 70 | 69 | 65 | 67 | 68 | 71 | 71 | 69 | 67 | 71 | 66 | 55 |