YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1944 | 28.89 | c | 31.43 | a | 35.21 | b | 45.08 | f | 53.67 | d | 60.26 | g | 68.75 | c | 65.48 | f | 65.07 | b | 57.59 | d | 34.07 | c | 26.69 | e | 44.60 | c |
1945 | 30.66 | b | 32.16 | c | 32.97 | a | 37.14 | a | 53.50 | c | 56.54 | d | 69.53 | a | 70.14 | b | 57.88 | e | 53.20 | f | 31.48 | a | 28.29 | c | 45.48 | a |
1946 | 31.96 | d | 32.77 | b | 35.82 | c | 43.11 | c | 56.04 | f | 55.96 | d | 66.46 | c | 69.54 | c | 58.12 | e | 43.43 | a | 33.31 | d | 33.54 | c | 45.82 | a |
1947 | 30.75 | g | 37.96 | c | 42.52 | b | 46.81 | c | 58.55 | b | 55.32 | b | 63.36 | c | 62.63 | a | 60.83 | 43.89 | c | 34.85 | d | 31.48 | b | 48.93 | a | |
1948 | 30.18 | c | 28.81 | b | 31.82 | c | 37.28 | a | 47.07 | c | 61.30 | 61.48 | 59.03 | 56.97 | 47.39 | 32.60 | 24.42 | 43.20 | ||||||||
1949 | 19.77 | 27.39 | 35.16 | 44.00 | 55.26 | 57.10 | 62.19 | 63.74 | 61.03 | 45.10 | 44.03 | 29.23 | 45.33 | |||||||||||||
1950 | 14.61 | 28.36 | 31.35 | 37.50 | 45.52 | 55.60 | 65.65 | 67.55 | 62.50 | 43.16 | 34.70 | 34.94 | 43.45 | |||||||||||||
1951 | 25.61 | 31.18 | 32.19 | 47.20 | 51.26 | 61.90 | 67.03 | 65.10 | 62.50 | 43.77 | 33.40 | 27.03 | 45.68 | |||||||||||||
1952 | 24.77 | 31.28 | 33.13 | 46.10 | 51.97 | 53.67 | 68.03 | 65.23 | 64.73 | 58.06 | 34.37 | 28.90 | 46.69 | |||||||||||||
1953 | 36.39 | 32.29 | 34.42 | 39.03 | 46.55 | 49.80 | 64.52 | 64.90 | 59.67 | 50.94 | 37.77 | 32.94 | 45.77 | |||||||||||||
1954 | 25.97 | 32.21 | 33.10 | 37.20 | 49.77 | 50.50 | 61.55 | 56.58 | 56.13 | 47.06 | 39.87 | 28.90 | 43.24 | |||||||||||||
1955 | 29.00 | 27.82 | 28.26 | 36.30 | 42.58 | 55.30 | 58.55 | 63.65 | 57.27 | 45.32 | 28.03 | 26.48 | 41.55 | |||||||||||||
1956 | 26.03 | 24.86 | 31.74 | 44.73 | 55.03 | 52.87 | 68.26 | 66.87 | 59.10 | 42.55 | 35.20 | 35.87 | 45.26 | |||||||||||||
1957 | 21.06 | 31.75 | 33.71 | 43.17 | 55.87 | 57.00 | 60.74 | 61.23 | 66.47 | 45.45 | 37.67 | 33.13 | 45.60 | |||||||||||||
1958 | 29.97 | 35.43 | 36.00 | 42.03 | 60.42 | 63.17 | 73.32 | 70.42 | 57.33 | 51.13 | 33.63 | 34.48 | 48.94 | |||||||||||||
1959 | 28.65 | 29.11 | 34.23 | 41.33 | 46.97 | 56.70 | 67.29 | 60.45 | 52.80 | 47.16 | 36.57 | 30.42 | 44.31 | |||||||||||||
1960 | 25.94 | 29.17 | 36.16 | 42.27 | 45.19 | 58.13 | 71.00 | 58.32 | 60.20 | 49.74 | 33.90 | 29.68 | 44.98 | |||||||||||||
1961 | 32.23 | 32.86 | 35.42 | 38.57 | 48.13 | 65.07 | 67.77 | 71.71 | 53.83 | 45.29 | 32.03 | 28.81 | 45.98 | |||||||||||||
1962 | 31.45 | 32.50 | 34.81 | 44.47 | 43.10 | 58.23 | 63.81 | 60.74 | 60.97 | 48.03 | 35.73 | 33.74 | 45.63 | |||||||||||||
1963 | 27.77 | 41.00 | 37.13 | 39.20 | 52.26 | 53.40 | 58.65 | 65.23 | 65.13 | 48.52 | 34.43 | 31.55 | 46.19 | |||||||||||||
1964 | 28.94 | 34.38 | 32.16 | 36.20 | 44.90 | 53.23 | 63.13 | 58.06 | 53.87 | 49.10 | 32.13 | 24.65 | 42.56 | |||||||||||||
1965 | 30.00 | 32.57 | 38.13 | 42.70 | 46.58 | 58.50 | 67.55 | 63.71 | 56.20 | 52.45 | 37.27 | 28.58 | 46.19 | |||||||||||||
1966 | 29.45 | 30.32 | 35.55 | 42.57 | 52.23 | 53.93 | 61.52 | 64.06 | 62.67 | 47.71 | 36.73 | 32.55 | 45.77 | |||||||||||||
1967 | 31.58 | 34.61 | 32.65 | 37.40 | 49.16 | 62.63 | 66.74 | 75.10 | 65.37 | 46.10 | 36.73 | 30.13 | 47.35 | |||||||||||||
1968 | 29.23 | 38.59 | 39.26 | 38.83 | 50.48 | 55.90 | 68.58 | 59.97 | 57.77 | 42.32 | 33.60 | 23.55 | 44.84 | |||||||||||||
1969 | 19.71 | 27.96 | 37.94 | 40.83 | 54.48 | 63.47 | 62.32 | 62.00 | 56.33 | 44.39 | 37.47 | 29.23 | 44.68 | |||||||||||||
1970 | 27.32 | 35.14 | 35.68 | 35.10 | 49.19 | 61.83 | 65.97 | 66.94 | 53.03 | 44.87 | 33.67 | 26.48 | 44.60 | |||||||||||||
1971 | 30.16 | 31.39 | 30.10 | 39.23 | 49.58 | 51.87 | 68.71 | 69.71 | 53.27 | 45.32 | 34.40 | 27.48 | 44.27 | |||||||||||||
1972 | 26.48 | 30.59 | 36.84 | 35.47 | 52.23 | 56.13 | 65.52 | 67.74 | 52.13 | 48.65 | 35.13 | 25.61 | 44.38 | |||||||||||||
1973 | 25.32 | 33.96 | 35.65 | 41.90 | 51.19 | 54.20 | 66.03 | 61.23 | 58.33 | 44.58 | 29.30 | 30.87 | 44.38 | |||||||||||||
1974 | 24.84 | 31.32 | 34.74 | 39.40 | 42.97 | 58.70 | 62.06 | 66.68 | 63.50 | 52.71 | 35.67 | 32.87 | 45.45 | |||||||||||||
1975 | 30.03 | 29.36 | 31.94 | 36.47 | 47.42 | 51.43 | 66.00 | 56.97 | 62.47 | 41.55 | 33.70 | 32.65 | 43.33 | |||||||||||||
1976 | 34.16 | 31.69 | 32.81 | 41.13 | 50.16 | 53.00 | 63.03 | 60.29 | 62.40 | 50.29 | 40.73 | 35.68 | 46.28 | |||||||||||||
1977 | 33.10 | 36.64 | 33.48 | 49.17 | 46.16 | 61.87 | 61.65 | 69.90 | 53.50 | 46.48 | 32.03 | 28.32 | 46.03 | |||||||||||||
1978 | 30.68 | 32.46 | 39.97 | 41.97 | 46.65 | 60.53 | 64.52 | 62.10 | 51.17 | 51.03 | 33.03 | 26.03 | 45.01 | |||||||||||||
1979 | 22.03 | 29.93 | 40.55 | 42.67 | 52.16 | 57.90 | 65.32 | 64.42 | 61.97 | 51.55 | 32.20 | 33.84 | 46.21 | |||||||||||||
1980 | 23.61 | 31.41 | 33.94 | 47.90 | 51.45 | 53.37 | 64.00 | 59.84 | 57.93 | 51.23 | 36.70 | 37.16 | 45.71 | |||||||||||||
1981 | 31.71 | 34.14 | 40.42 | 42.47 | 48.65 | 51.67 | 61.84 | 69.77 | 58.07 | 47.84 | 37.77 | 29.29 | 46.14 | |||||||||||||
1982 | 28.77 | 29.57 | 35.39 | 39.20 | 48.48 | 61.63 | 63.39 | 63.87 | 58.13 | 44.77 | 30.67 | 27.87 | 44.31 | |||||||||||||
1983 | 34.52 | 33.54 | 39.42 | 44.30 | 53.45 | 54.23 | 59.00 | 64.94 | 53.77 | 47.68 | 33.83 | 21.68 | 45.03 | |||||||||||||
1984 | 33.16 | 33.62 | 39.26 | 38.23 | 43.77 | 53.60 | 66.81 | 64.39 | 54.40 | 42.32 | 32.40 | 26.52 | 44.04 | |||||||||||||
1985 | 26.65 | 29.89 | 36.10 | 43.87 | 51.52 | 57.87 | 73.55 | 63.48 | 53.30 | 43.13 | 23.70 | 29.45 | 44.37 | |||||||||||||
1986 | 32.48 | 32.93 | 41.13 | 40.37 | 51.39 | 63.20 | 58.39 | 71.32 | 52.57 | 53.32 | 35.93 | 28.16 | 46.77 | |||||||||||||
1987 | 27.35 | 34.75 | 38.39 | 47.80 | 53.87 | 63.50 | 60.32 | 67.10 | 64.97 | 57.45 | 37.57 | 27.97 | 48.42 | |||||||||||||
1988 | 28.23 | 37.45 | 37.19 | 43.20 | 49.65 | 56.53 | 64.42 | 65.65 | 60.27 | 56.81 | 33.83 | 33.10 | 47.19 | |||||||||||||
1989 | 32.19 | 25.18 | 33.71 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.36 | i | |||
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | 31.03 | ----- | z | 36.39 | 42.80 | 46.23 | 53.50 | 66.65 | 67.00 | 64.83 | 50.58 | 34.93 | 31.71 | 47.79 | a | |||||||||||
1992 | 31.48 | 36.93 | 47.90 | 46.17 | 59.81 | 63.53 | 64.55 | 68.06 | ----- | z | 47.97 | 32.93 | 26.23 | 47.78 | a | |||||||||||
1993 | 24.61 | 29.54 | 39.35 | 41.30 | 57.45 | 53.23 | 54.06 | 63.74 | 64.47 | 52.16 | 32.37 | 32.32 | 45.38 | |||||||||||||
1994 | 37.26 | 31.14 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.20 | j | ||
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 69.10 | 67.32 | 54.43 | 47.69 | e | 33.85 | c | 28.77 | 50.20 | f | ||||
1997 | 29.84 | 32.04 | 34.74 | 39.90 | a | 53.19 | 54.43 | 62.30 | a | 68.23 | 59.54 | b | 44.16 | 38.17 | 31.00 | 45.63 | ||||||||||
1998 | 27.92 | f | 32.32 | 37.06 | 45.47 | 47.81 | 57.43 | 68.84 | 68.39 | 65.97 | 47.03 | 35.63 | 28.77 | 48.61 | a | |||||||||||
1999 | 33.35 | 29.93 | 34.87 | 42.10 | 44.87 | 51.83 | 63.61 | 65.87 | 60.93 | 47.55 | 38.87 | 31.90 | a | 45.47 | ||||||||||||
2000 | 27.81 | 32.38 | 35.00 | 46.97 | 47.32 | 58.20 | 62.81 | 62.58 | 56.67 | 46.35 | 32.20 | 29.32 | 44.80 | |||||||||||||
2001 | 29.81 | 31.43 | 37.84 | 40.50 | 53.74 | 53.70 | 61.77 | 66.61 | 61.10 | 44.55 | 36.93 | 29.03 | 45.58 | |||||||||||||
2002 | 30.32 | 33.04 | 31.90 | 41.83 | 46.77 | 58.97 | 66.48 | 65.16 | 60.00 | 48.16 | 39.70 | 30.16 | 46.04 | |||||||||||||
2003 | 33.52 | 33.71 | 36.90 | 41.27 | 50.06 | 61.47 | 69.55 | 69.06 | 63.13 | 51.90 | 33.20 | 29.55 | 47.78 | |||||||||||||
2004 | 29.19 | 33.45 | 41.42 | 50.73 | 49.81 | 62.50 | 71.27 | a | 73.03 | 58.77 | 50.94 | 42.30 | 37.48 | 50.07 | ||||||||||||
2005 | 36.16 | 41.18 | 46.23 | 49.27 | 58.10 | 58.23 | 69.39 | 71.61 | 59.60 | 50.94 | 35.33 | 30.90 | 50.58 | |||||||||||||
2006 | 34.97 | 34.32 | 39.81 | 48.87 | 57.26 | 63.77 | 72.06 | 70.23 | 65.03 | 51.90 | 35.87 | 32.32 | 50.53 | |||||||||||||
2007 | 32.61 | 35.71 | 39.90 | 42.07 | 53.35 | 56.70 | 69.10 | 63.32 | 56.97 | 45.94 | 37.00 | 30.06 | 46.89 | |||||||||||||
2008 | 26.94 | 35.66 | 34.61 | 38.47 | 52.27 | a | 55.57 | 65.68 | 65.48 | 62.33 | 48.97 | 45.50 | 31.58 | 46.92 | ||||||||||||
2009 | ----- | z | 35.00 | l | 32.80 | u | 45.48 | g | 55.90 | 62.53 | 73.35 | 66.55 | 62.70 | 46.96 | g | 41.10 | a | 32.00 | m | 60.36 | f | |||||
2010 | 34.64 | f | 38.64 | 40.77 | 43.57 | 49.58 | 55.93 | 66.65 | 64.61 | 56.17 | 49.57 | a | 40.79 | p | 26.13 | p | 51.72 | c | ||||||||
2011 | 33.39 | 30.07 | 33.79 | b | 35.26 | g | 44.57 | h | 52.53 | 60.90 | 65.19 | 64.50 | 44.18 | i | 33.03 | 34.08 | g | 46.68 | d | |||||||
2012 | ----- | z | 30.82 | g | 34.10 | u | ----- | z | ----- | z | 54.67 | f | 63.82 | i | 69.77 | 65.00 | 57.58 | s | 34.04 | e | 28.77 | i | 56.27 | i | ||
2013 | 31.33 | a | 33.59 | f | ----- | z | 46.00 | w | 62.43 | q | 59.50 | h | 73.26 | l | 67.20 | u | 63.40 | t | 49.90 | u | 37.18 | s | 39.29 | x | 31.33 | k |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | 54.25 | w | 59.52 | i | 71.59 | n | 70.14 | i | 61.05 | i | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.73 | a | 35.00 | c | ----- | z | 43.87 | j |
2016 | ----- | z | ----- | z | 37.05 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.84 | ----- | z | ----- | z | 44.84 | k | |
2017 | ----- | z | ----- | z | 36.86 | q | 41.93 | a | ----- | z | ----- | z | 69.84 | 75.55 | b | 63.47 | 48.14 | b | 34.21 | a | 27.97 | 51.59 | e | |||
2018 | 32.45 | b | 32.30 | a | 37.61 | 44.57 | 58.87 | 59.50 | 72.69 | b | 69.68 | 59.96 | f | 50.77 | 38.73 | 30.55 | 47.97 | a | ||||||||
2019 | 33.94 | 27.07 | 40.87 | 46.95 | j | 58.42 | 59.63 | c | 63.58 | 68.53 | a | 56.30 | 44.00 | m | ----- | z | 33.06 | 49.05 | c | |||||||
2020 | 33.03 | a | 36.00 | c | 38.52 | 47.21 | b | 55.10 | 58.60 | 67.54 | c | 67.77 | a | 66.47 | 51.74 | d | 36.93 | 32.72 | b | 49.30 | ||||||
2021 | 33.93 | b | 28.33 | d | 39.79 | c | 49.07 | c | 50.76 | b | 66.69 | a | 72.13 | 67.11 | c | 60.23 | 46.26 | 38.28 | a | 29.16 | 48.48 | |||||
2022 | 33.71 | c | 35.11 | a | 40.74 | 38.43 | 45.57 | a | 57.40 | 72.55 | 75.58 | 67.93 | b | 55.05 | i | 32.38 | a | 28.06 | 47.95 | a | ||||||
2023 | 37.44 | f | 31.39 | 35.57 | a | 40.29 | i | 58.85 | e | 62.22 | c | 71.00 | c | 71.48 | b | 59.19 | c | 51.11 | c | 35.53 | ----- | z | 52.93 | c | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.45 | 32.40 | 36.36 | 42.13 | 50.92 | 57.45 | 65.71 | 65.91 | 59.59 | 48.22 | 35.18 | 30.04 | 45.79 | |||||||||||||
S.D. | 4.27 | 3.32 | 3.61 | 3.84 | 4.51 | 4.04 | 4.16 | 4.28 | 4.26 | 3.85 | 3.42 | 3.20 | 1.88 | |||||||||||||
SKEW | -0.92 | 0.34 | 0.60 | 0.25 | 0.21 | 0.23 | -0.12 | 0.03 | -0.09 | 0.55 | 0.17 | 0.02 | 0.63 | |||||||||||||
MAX | 37.26 | 41.18 | 47.90 | 50.73 | 60.42 | 66.69 | 73.55 | 75.58 | 67.93 | 58.06 | 45.50 | 37.48 | 50.58 | |||||||||||||
MIN | 14.61 | 24.86 | 28.26 | 35.10 | 42.58 | 49.80 | 54.06 | 56.58 | 51.17 | 41.55 | 23.70 | 21.68 | 41.55 | |||||||||||||
YRS | 67 | 69 | 69 | 65 | 67 | 68 | 71 | 71 | 70 | 68 | 71 | 67 | 55 |