YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1942 | 37.53 | a | 35.79 | 37.06 | 44.83 | 46.00 | 55.10 | 62.58 | 59.74 | 53.90 | 48.29 | 39.37 | 33.10 | 46.11 | ||||||||||||
1943 | ----- | z | ----- | z | 41.23 | 47.47 | 51.61 | 52.83 | 62.23 | 58.16 | 57.77 | 48.00 | 39.13 | 37.39 | 49.58 | b | ||||||||||
1944 | 35.45 | 36.48 | 39.90 | 43.93 | 52.65 | 55.07 | 61.39 | 59.32 | 57.07 | 51.03 | 39.40 | 35.13 | 47.24 | |||||||||||||
1945 | 34.13 | 39.93 | 38.97 | 45.77 | 51.45 | 59.17 | 66.68 | 62.81 | 59.67 | 52.74 | 40.57 | 38.97 | 49.24 | |||||||||||||
1946 | 31.81 | 34.50 | 41.74 | 47.23 | 53.03 | 57.29 | f | 64.74 | 62.90 | 56.97 | 45.45 | 39.43 | 36.45 | 46.75 | a | |||||||||||
1947 | 28.58 | 38.89 | 44.42 | 48.17 | 56.55 | 60.50 | 60.94 | 60.52 | 58.80 | 50.71 | 36.80 | 33.16 | 48.17 | |||||||||||||
1948 | 35.10 | 36.28 | 39.58 | 46.80 | 49.45 | 58.90 | 62.13 | 60.90 | 55.87 | 49.61 | 37.57 | 34.61 | 47.23 | |||||||||||||
1949 | 26.61 | 34.79 | 42.35 | 48.63 | 52.77 | 60.77 | 64.23 | 60.55 | 58.76 | a | 47.10 | b | 43.13 | 33.48 | 47.77 | |||||||||||
1950 | 32.81 | 38.46 | 39.71 | 47.48 | a | 53.39 | 57.40 | 67.55 | 62.80 | a | 58.86 | a | 51.10 | 46.47 | 43.42 | 49.95 | ||||||||||
1951 | 36.84 | 37.07 | 39.45 | 47.59 | a | 53.97 | 59.63 | 63.97 | 62.68 | 59.20 | 47.81 | 41.73 | 35.77 | 48.81 | ||||||||||||
1952 | 36.32 | 38.24 | 38.68 | 46.00 | 53.87 | 54.13 | 65.71 | 62.97 | 58.43 | 51.94 | 38.07 | 39.26 | 48.63 | |||||||||||||
1953 | 40.87 | 34.61 | 38.23 | 45.23 | 47.55 | 55.63 | 66.19 | 60.29 | 59.30 | 45.06 | 42.37 | 32.26 | 47.30 | |||||||||||||
1954 | 34.74 | 39.46 | 39.58 | 49.10 | 53.97 | 56.80 | 65.94 | 58.65 | 53.70 | 46.58 | 39.90 | 35.58 | 47.83 | |||||||||||||
1955 | 32.23 | 33.93 | 38.00 | 40.07 | 51.61 | 56.03 | 60.03 | 63.58 | 57.00 | 48.42 | 37.90 | 42.65 | 46.79 | |||||||||||||
1956 | 40.94 | 33.17 | 37.87 | 44.90 | 51.81 | 57.83 | 63.81 | 59.26 | 57.90 | 48.42 | 36.67 | 31.13 | 46.97 | |||||||||||||
1957 | 33.45 | 44.86 | 42.61 | 47.31 | a | 52.23 | 60.50 | 64.33 | p | 59.68 | 57.14 | a | 49.21 | b | 38.32 | b | 35.72 | b | 47.37 | a | ||||||
1958 | 34.38 | b | 43.21 | 40.00 | 45.54 | b | 54.00 | 57.20 | 64.19 | 67.87 | a | 57.17 | a | 51.87 | 38.97 | a | 35.73 | a | 49.18 | |||||||
1959 | 39.39 | 36.75 | 40.42 | 47.74 | c | 48.40 | a | 58.86 | a | 65.48 | 60.55 | 55.52 | c | 49.03 | a | 35.96 | b | 32.58 | 47.56 | |||||||
1960 | 33.71 | 38.28 | 42.90 | a | 44.17 | 48.68 | 62.20 | 65.68 | 60.71 | 56.83 | 45.97 | 38.93 | 33.43 | a | 47.62 | |||||||||||
1961 | 31.39 | 39.11 | 39.63 | a | 44.63 | 49.81 | 62.07 | 66.77 | 66.74 | 54.27 | 47.16 | 37.90 | 35.65 | 47.93 | ||||||||||||
1962 | 29.39 | 39.04 | 38.13 | 44.83 | 48.03 | 57.27 | 62.65 | 60.90 | 56.37 | 47.13 | 40.27 | 36.26 | 46.69 | |||||||||||||
1963 | 29.84 | 44.82 | 38.81 | 42.70 | 52.97 | 57.00 | d | 61.29 | 61.39 | 60.53 | 52.19 | 42.17 | 32.81 | 48.04 | ||||||||||||
1964 | 33.84 | 34.52 | 38.61 | 43.83 | 48.84 | 57.40 | 64.26 | 62.90 | 54.33 | 51.58 | 40.33 | 41.19 | 47.64 | |||||||||||||
1965 | 39.35 | 38.57 | 42.65 | 48.90 | 52.03 | 55.67 | 63.87 | 65.39 | 53.93 | 50.03 | 45.63 | 33.55 | 49.13 | |||||||||||||
1966 | 32.55 | 34.75 | 39.74 | 46.23 | 53.55 | 58.80 | 60.39 | 64.42 | 64.57 | 49.32 | 43.00 | 38.00 | 48.78 | |||||||||||||
1967 | 33.94 | 36.54 | 40.61 | 38.93 | 50.84 | 57.20 | 67.32 | 66.90 | 61.00 | 52.06 | 45.30 | 31.52 | 48.51 | |||||||||||||
1968 | 32.87 | 45.17 | 41.87 | 44.21 | a | 49.19 | 59.60 | 64.45 | 58.68 | ----- | z | 47.87 | 40.97 | 33.10 | 47.09 | a | ||||||||||
1969 | 39.35 | 38.86 | 39.10 | 43.57 | 53.71 | 57.57 | 64.71 | 62.39 | 59.37 | 45.61 | 39.20 | 33.61 | 48.09 | |||||||||||||
1970 | 40.29 | 40.29 | 41.71 | 41.17 | 51.23 | 58.20 | 64.77 | 61.55 | 53.83 | 44.97 | 42.40 | 37.97 | 48.20 | |||||||||||||
1971 | 34.23 | 37.29 | 38.55 | 45.27 | 50.23 | 57.27 | 64.84 | 65.74 | 57.57 | 45.19 | 37.03 | a | 31.35 | 47.05 | ||||||||||||
1972 | 30.74 | 38.31 | 44.58 | 47.30 | 54.58 | 61.93 | 64.84 | 63.58 | ----- | z | ----- | z | 38.30 | 32.87 | 47.70 | b | ||||||||||
1973 | 36.81 | 42.75 | 39.52 | 44.17 | 55.61 | 60.90 | 63.00 | ----- | z | ----- | z | 45.58 | 40.70 | 36.39 | 46.54 | b | ||||||||||
1974 | 36.23 | 35.61 | 42.97 | 42.77 | 51.94 | 60.40 | 64.94 | 62.68 | 59.83 | 52.26 | 38.23 | 36.48 | 48.69 | |||||||||||||
1975 | 30.19 | 39.18 | 40.94 | 39.23 | 50.42 | 57.77 | 61.48 | 59.70 | d | 56.58 | k | 45.87 | 33.73 | 30.23 | 44.43 | a | ||||||||||
1976 | 30.33 | a | 39.03 | 39.03 | 44.47 | 53.97 | 57.41 | a | 64.81 | 59.65 | 59.76 | a | 50.35 | 42.83 | 30.42 | g | 49.24 | a | ||||||||
1977 | 35.61 | 38.00 | 35.81 | 45.27 | 47.26 | 61.43 | 63.06 | 63.94 | 57.03 | 49.26 | 39.67 | 39.71 | c | 48.00 | ||||||||||||
1978 | ----- | z | 41.21 | 45.29 | 42.43 | 49.00 | 55.90 | a | 63.13 | 62.68 | c | 53.57 | b | 49.36 | c | 36.57 | 30.55 | 48.15 | a | |||||||
1979 | 36.39 | 35.96 | 43.43 | a | ----- | z | 49.29 | c | 56.54 | d | 63.97 | 60.62 | b | 58.79 | a | 52.35 | 39.33 | ----- | z | 49.67 | b | |||||
1980 | 41.13 | 43.48 | 40.48 | 46.30 | 49.94 | 53.60 | 63.93 | c | 61.29 | ----- | z | 48.42 | 39.27 | 33.93 | a | 47.43 | a | |||||||||
1981 | 39.32 | 39.57 | 42.00 | 45.69 | a | 52.73 | a | 62.87 | 62.39 | 62.10 | 59.40 | 45.77 | 45.03 | 39.90 | 49.73 | |||||||||||
1982 | 33.10 | 39.96 | b | 43.55 | b | 45.34 | a | 52.93 | a | 57.30 | ----- | z | 62.97 | a | 58.86 | a | 50.06 | 40.93 | 35.97 | a | 47.36 | a | ||||
1983 | 35.30 | a | 41.29 | 44.26 | 43.47 | 52.04 | d | 58.17 | 58.74 | 64.61 | 61.33 | 52.03 | 43.30 | 41.50 | a | 49.67 | ||||||||||
1984 | 37.19 | 36.21 | 42.74 | 43.72 | a | 54.72 | b | 58.26 | c | 70.30 | a | 66.77 | 64.20 | 48.77 | 41.79 | a | 38.00 | 50.22 | ||||||||
1985 | 34.68 | 36.50 | 38.13 | 49.00 | 50.94 | 62.60 | 68.06 | 62.26 | 56.43 | 47.48 | 41.43 | 33.10 | 48.38 | |||||||||||||
1986 | 43.90 | 43.48 | a | 46.06 | 46.63 | 53.83 | b | 61.66 | a | 65.87 | 66.55 | 55.57 | 49.27 | a | 41.47 | 36.52 | 50.90 | |||||||||
1987 | 34.61 | 39.54 | b | 42.83 | a | 50.23 | 55.81 | 62.20 | 61.48 | 62.77 | 58.93 | b | 56.13 | 41.73 | 36.83 | a | 50.26 | |||||||||
1988 | 37.19 | 38.48 | b | 42.30 | a | 47.43 | 51.61 | 59.20 | 69.45 | 65.13 | 58.77 | 52.58 | 42.70 | 34.34 | b | 49.93 | ||||||||||
1989 | 31.48 | 38.50 | 46.65 | 51.27 | 53.77 | 61.10 | 66.00 | a | 63.06 | 57.86 | a | 50.13 | 39.87 | 30.87 | a | 49.21 | ||||||||||
1990 | 35.94 | 36.37 | a | 45.20 | a | 51.50 | 53.81 | 60.67 | 68.55 | 65.97 | 60.57 | 52.19 | 40.27 | 28.58 | 49.97 | |||||||||||
1991 | 36.48 | 42.36 | 43.03 | 46.03 | 50.58 | 59.23 | 68.13 | a | 63.35 | 63.71 | b | 55.53 | a | ----- | z | 34.65 | 51.19 | a | ||||||||
1992 | 35.52 | 45.14 | 46.87 | 49.43 | ----- | z | 62.37 | ----- | z | 67.03 | 60.00 | 54.84 | 41.23 | 35.00 | 49.74 | b | ||||||||||
1993 | 38.26 | 41.67 | a | 47.47 | a | 46.90 | a | 54.29 | 59.03 | a | 63.90 | b | 63.48 | ----- | z | 53.03 | 39.60 | 35.71 | 49.39 | a | ||||||
1994 | 35.48 | 39.07 | 44.77 | 48.83 | 54.55 | b | 60.15 | d | 66.87 | 65.44 | d | 59.43 | 49.30 | a | 38.03 | 35.45 | 49.78 | |||||||||
1995 | 44.37 | a | 45.19 | a | 45.74 | 46.37 | 53.06 | 58.31 | a | 64.90 | a | 64.13 | 59.03 | a | 50.27 | a | 46.14 | a | 39.87 | 51.45 | ||||||
1996 | 39.03 | a | 45.44 | b | 43.90 | a | 47.69 | a | 54.93 | b | 60.93 | a | 68.50 | a | 65.04 | c | 57.81 | d | 49.52 | 42.70 | 40.47 | a | 51.33 | |||
1997 | 42.00 | 39.29 | 44.30 | a | 48.10 | 58.10 | a | 60.70 | 65.81 | 65.23 | 62.10 | 48.33 | a | 45.93 | a | 35.10 | 51.25 | |||||||||
1998 | 40.40 | a | 41.25 | 43.35 | 44.97 | 49.29 | 58.03 | a | 66.35 | 66.87 | 61.83 | 46.55 | 41.03 | 29.77 | 49.14 | |||||||||||
1999 | 34.32 | 38.00 | 41.13 | 46.23 | 52.23 | 59.33 | 65.13 | 63.17 | a | 60.70 | 51.52 | b | 43.41 | a | 33.35 | 49.04 | ||||||||||
2000 | 41.00 | b | 44.25 | a | 42.43 | c | 49.90 | 55.81 | 64.23 | 62.27 | a | 65.97 | a | 59.07 | 50.90 | 37.07 | 36.48 | 50.78 | ||||||||
2001 | 33.65 | 39.61 | 45.87 | a | 44.38 | a | 59.35 | 63.33 | 67.52 | 65.00 | 60.93 | 53.94 | 44.41 | a | 38.87 | a | 51.40 | |||||||||
2002 | 35.52 | 37.61 | 42.00 | 50.26 | g | 53.43 | a | 63.73 | 68.97 | a | 63.52 | 60.93 | 49.30 | a | 41.57 | 39.16 | 50.52 | a | ||||||||
2003 | 40.26 | 38.82 | 44.03 | 45.23 | 53.87 | 61.87 | 70.42 | 66.16 | 62.80 | 52.55 | 40.53 | 41.48 | 51.50 | |||||||||||||
2004 | 38.10 | 39.93 | 46.97 | 48.18 | h | 54.63 | a | 61.53 | 67.90 | 65.32 | 58.00 | 51.26 | 40.48 | i | 38.38 | g | 53.74 | c | ||||||||
2005 | 41.00 | 43.63 | i | 44.16 | 44.30 | 54.48 | 57.13 | g | 69.81 | 66.32 | 55.23 | 49.61 | 43.72 | l | 41.77 | 51.85 | c | |||||||||
2006 | 36.81 | 39.35 | h | 38.04 | g | 48.10 | 56.42 | g | 65.15 | q | 71.29 | 63.23 | 59.71 | m | 48.70 | k | 43.09 | s | 34.95 | i | 54.86 | h | ||||
2007 | 30.10 | 40.29 | 46.21 | q | 48.19 | n | 57.80 | k | 61.66 | a | 67.13 | a | 67.00 | a | 58.73 | 48.79 | b | 42.17 | a | 33.93 | a | 49.98 | c | |||
2008 | 37.58 | 38.31 | 41.52 | 44.00 | 56.00 | b | 60.93 | c | 71.04 | e | 68.87 | 60.43 | 50.00 | 44.03 | a | 34.48 | 50.60 | |||||||||
2009 | 35.81 | 39.96 | 41.65 | 47.03 | 59.32 | 61.50 | 69.03 | 64.81 | 63.00 | 50.00 | 39.69 | a | 36.84 | 50.72 | ||||||||||||
2010 | 40.03 | 41.86 | 39.79 | b | 45.70 | g | 49.75 | k | 62.25 | b | 68.81 | e | 63.58 | 59.14 | a | 53.93 | a | 39.52 | c | 42.48 | b | 51.14 | b | |||
2011 | 37.50 | a | 36.22 | j | 44.62 | b | 46.22 | c | 50.43 | c | 58.40 | 66.31 | b | 64.65 | 63.82 | b | 52.17 | a | 40.33 | 31.55 | 50.55 | a | ||||
2012 | 36.06 | 38.44 | b | 42.24 | b | 46.27 | s | 56.90 | 61.96 | b | 67.20 | a | 69.39 | h | 65.45 | j | 56.00 | w | ----- | z | ----- | z | 50.47 | f | ||
2013 | ----- | z | 33.47 | m | 44.39 | 51.97 | 61.64 | i | 68.85 | c | 72.97 | 67.39 | 61.27 | 49.00 | 43.37 | 33.45 | 54.74 | c | ||||||||
2014 | 40.07 | a | 43.75 | 46.84 | 51.50 | 57.71 | c | 63.77 | d | 72.62 | b | 68.39 | 65.50 | b | 54.48 | b | 44.93 | 44.14 | c | 54.48 | ||||||
2015 | 38.77 | 43.61 | 48.00 | a | 50.19 | c | 54.90 | b | 66.80 | 69.76 | b | 68.03 | 63.72 | a | 58.81 | 39.57 | 35.90 | 53.17 | ||||||||
2016 | 42.47 | a | 41.07 | 45.89 | c | 52.03 | a | 56.10 | 65.88 | d | 66.13 | 66.66 | b | 60.28 | a | 52.94 | 46.00 | c | 38.29 | 52.81 | ||||||
2017 | 40.77 | a | 45.57 | e | 45.10 | 48.64 | b | 56.67 | d | 66.04 | f | 70.45 | b | 70.70 | a | 62.87 | 49.04 | g | 45.05 | h | 33.87 | h | 55.09 | d | ||
2018 | 43.53 | l | 38.88 | k | 46.28 | m | 50.70 | g | 56.41 | b | 61.85 | c | 73.04 | e | 66.59 | i | 59.35 | m | 50.47 | p | 41.64 | e | 39.58 | e | 54.50 | g |
2019 | 39.24 | f | 36.21 | i | 40.50 | s | 47.71 | w | 53.17 | y | ----- | z | ----- | z | ----- | z | 61.43 | p | 48.00 | t | 43.67 | r | 40.26 | d | 40.26 | k |
2020 | 35.88 | g | 35.67 | t | 44.00 | x | 47.33 | x | 59.88 | w | 64.20 | t | 68.18 | t | 67.25 | w | 65.20 | t | 54.00 | u | ----- | z | 32.00 | y | ----- | z |
2021 | 36.50 | u | 39.57 | u | 39.80 | u | 49.11 | u | ----- | z | 68.57 | w | 75.57 | q | 69.84 | f | 63.17 | l | 52.10 | j | 42.47 | o | 38.83 | m | ----- | z |
2022 | 38.45 | t | 36.25 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2023 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.80 | y | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 36.07 | 39.40 | 42.08 | 46.24 | 52.79 | 59.63 | 65.74 | 63.60 | 58.92 | 49.94 | 40.77 | 35.95 | 49.19 | |||||||||||||
S.D. | 3.81 | 3.16 | 2.85 | 2.83 | 2.87 | 3.02 | 3.18 | 2.78 | 2.85 | 2.87 | 2.72 | 3.54 | 1.78 | |||||||||||||
SKEW | -0.09 | 0.28 | 0.09 | -0.15 | -0.02 | 0.31 | 0.27 | 0.10 | 0.09 | 0.39 | 0.14 | 0.30 | 0.72 | |||||||||||||
MAX | 44.37 | 45.57 | 48.00 | 52.03 | 59.35 | 68.85 | 73.04 | 70.70 | 65.50 | 58.81 | 46.47 | 44.14 | 54.48 | |||||||||||||
MIN | 26.61 | 33.17 | 35.81 | 38.93 | 46.00 | 52.83 | 58.74 | 58.16 | 53.57 | 44.97 | 33.73 | 28.58 | 46.11 | |||||||||||||
YRS | 73 | 71 | 74 | 70 | 72 | 73 | 74 | 74 | 68 | 72 | 71 | 72 | 51 |