YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.72 | o | 64.94 | 64.60 | 54.66 | 45.00 | 37.58 | 53.36 | g | |||||
1944 | 37.58 | 41.26 | 44.24 | 49.17 | 54.63 | 60.20 | 66.42 | 65.10 | 64.53 | 57.29 | 43.20 | 37.02 | 51.72 | |||||||||||||
1945 | 40.23 | 43.30 | 43.55 | 48.50 | 57.29 | 60.42 | 67.69 | 66.56 | 60.60 | 53.18 | 45.65 | 41.17 | a | 52.34 | ||||||||||||
1946 | 40.18 | 42.18 | 45.11 | 50.47 | 57.98 | 59.90 | 66.77 | 66.69 | 60.37 | 48.79 | b | 43.17 | 40.76 | 51.86 | ||||||||||||
1947 | 36.32 | 44.27 | b | 48.27 | 52.88 | a | 59.39 | 59.77 | 64.66 | 63.95 | 62.13 | 54.97 | 46.45 | 41.48 | 52.88 | |||||||||||
1948 | 38.26 | 39.36 | 43.63 | 46.72 | 53.90 | 63.46 | d | 64.47 | a | 64.55 | 61.18 | 52.13 | 42.92 | 35.79 | 50.53 | |||||||||||
1949 | 27.16 | 40.25 | 45.90 | 52.60 | 57.61 | 60.85 | 64.92 | 65.42 | 62.25 | 48.40 | 48.87 | 39.76 | 51.17 | |||||||||||||
1950 | 31.16 | 38.68 | 43.17 | a | 48.05 | 53.93 | a | 60.92 | 67.44 | 68.63 | 62.83 | 53.39 | 47.13 | 46.69 | 51.83 | |||||||||||
1951 | 40.19 | 42.41 | a | 41.66 | 53.53 | a | 55.42 | 63.83 | 66.48 | 66.03 | 63.12 | 52.71 | 45.60 | 38.85 | 52.49 | |||||||||||
1952 | 38.64 | b | 42.43 | a | 43.12 | a | 51.22 | 55.50 | a | 57.87 | 67.29 | 65.84 | 64.77 | 57.69 | 39.35 | 40.92 | 52.05 | |||||||||
1953 | 46.08 | a | 42.89 | 44.45 | 48.72 | 52.55 | 56.61 | b | 65.53 | 65.55 | 63.45 | 54.05 | 48.87 | 43.31 | b | 52.67 | ||||||||||
1954 | 40.26 | 42.96 | 43.03 | 50.08 | 55.60 | a | 56.72 | 62.98 | 62.56 | 59.92 | 51.45 | 49.28 | 40.21 | 51.26 | ||||||||||||
1955 | 38.85 | 39.82 | 41.31 | 44.77 | 53.15 | 60.22 | 61.57 | a | 64.97 | 61.43 | 53.34 | 43.95 | b | 41.63 | 50.42 | |||||||||||
1956 | 41.44 | 36.36 | a | 44.23 | 50.43 | 57.35 | 58.41 | a | 66.50 | b | 65.40 | 62.78 | 51.61 | 42.47 | 40.35 | 51.45 | ||||||||||
1957 | 31.87 | 41.91 | 46.19 | 51.65 | 57.67 | a | 61.87 | 64.31 | 63.73 | 65.42 | 53.18 | 43.07 | 42.95 | b | 51.98 | |||||||||||
1958 | 42.23 | 48.02 | 44.48 | 49.53 | 60.11 | 63.27 | 70.68 | 70.34 | 62.87 | 55.67 | a | 46.83 | 46.27 | 55.02 | ||||||||||||
1959 | 42.97 | 41.59 | 46.18 | 51.55 | a | 53.40 | 61.10 | 68.10 | 66.19 | 59.35 | 55.47 | 44.83 | 40.77 | 52.63 | ||||||||||||
1960 | 37.44 | 42.34 | 46.02 | 49.92 | 53.21 | 62.52 | 68.32 | 64.37 | 61.98 | 54.48 | 45.60 | 39.34 | 52.13 | |||||||||||||
1961 | 42.95 | 45.98 | 45.69 | 49.63 | 54.15 | 63.77 | 67.05 | 69.34 | 59.30 | 53.10 | 42.12 | 41.85 | 52.91 | |||||||||||||
1962 | 36.60 | 41.64 | 43.56 | 51.93 | 51.15 | 59.88 | 65.45 | 64.63 | 63.27 | 53.27 | 47.32 | 42.19 | 51.74 | |||||||||||||
1963 | 34.65 | 48.07 | 45.15 | a | 46.33 | 55.08 | 59.85 | 62.28 | a | 65.29 | 64.18 | 54.69 | 46.13 | 40.35 | 51.84 | |||||||||||
1964 | 41.08 | 40.88 | 43.19 | 47.28 | 51.94 | 58.42 | 65.37 | 64.13 | 59.82 | 54.34 | 42.38 | 40.90 | 50.81 | |||||||||||||
1965 | 40.13 | 43.12 | 46.92 | 50.70 | 53.05 | 59.42 | 66.63 | 66.61 | 60.78 | 55.50 | 48.78 | 38.84 | 52.54 | |||||||||||||
1966 | 40.31 | 41.20 | 44.84 | 51.92 | 55.11 | 60.27 | 64.53 | 66.23 | 63.08 | 53.19 | 46.50 | 43.95 | 52.59 | |||||||||||||
1967 | 42.76 | 43.46 | 43.53 | 45.12 | 54.82 | 63.32 | 67.68 | 71.15 | 65.67 | 53.35 | 46.88 | 40.98 | 53.23 | |||||||||||||
1968 | 40.73 | 47.33 | 47.55 | 47.73 | 53.47 | 60.32 | 66.15 | 64.00 | 61.12 | 51.92 | 46.97 | a | 38.77 | 52.17 | ||||||||||||
1969 | 35.23 | a | 38.34 | 45.55 | 48.08 | 57.47 | 62.87 | 64.44 | 63.68 | 61.63 | 50.66 | 45.37 | 42.05 | 51.28 | ||||||||||||
1970 | 41.03 | 44.48 | 46.32 | a | 46.03 | 54.79 | 63.63 | 66.98 | a | 65.60 | 58.62 | 51.89 | 45.42 | 39.58 | 52.03 | |||||||||||
1971 | 39.27 | 41.05 | 42.06 | 47.30 | 54.74 | 57.25 | 66.26 | 68.05 | 59.38 | 50.11 | 44.07 | 38.94 | 50.71 | |||||||||||||
1972 | 38.95 | 43.00 | 47.79 | 45.98 | 56.12 | a | 60.53 | a | 68.40 | 68.40 | 59.10 | 52.08 | 46.35 | 34.97 | 51.81 | |||||||||||
1973 | 37.53 | 43.93 | 43.77 | 50.05 | 56.06 | 61.09 | a | 66.55 | 63.92 | a | 61.83 | 53.00 | 43.37 | 43.55 | 52.05 | |||||||||||
1974 | 36.15 | 40.46 | 45.29 | 48.33 | 53.31 | 61.15 | 64.74 | 67.13 | 66.40 | 54.15 | 46.18 | 43.38 | a | 52.22 | ||||||||||||
1975 | 43.26 | 40.96 | 43.67 | a | 44.92 | 54.00 | 60.03 | 66.11 | 63.32 | 63.98 | 52.65 | 43.47 | 41.74 | 51.51 | ||||||||||||
1976 | 40.76 | 40.86 | 42.82 | 46.75 | 54.39 | 57.63 | 64.77 | 63.95 | 63.32 | 54.44 | 47.08 | 37.39 | 51.18 | |||||||||||||
1977 | 38.13 | 44.25 | 43.66 | 49.90 | a | 51.21 | 61.78 | 64.74 | 69.89 | 59.47 | 53.95 | 43.65 | 43.03 | 51.97 | ||||||||||||
1978 | 43.19 | 44.91 | 48.97 | 48.68 | 53.02 | 62.85 | 66.55 | 66.45 | 59.77 | 54.82 | 40.52 | 36.29 | 52.17 | |||||||||||||
1979 | 31.60 | 41.23 | 47.68 | 49.23 | 56.29 | 61.14 | a | 66.92 | 65.10 | 63.53 | 57.18 | 43.42 | 43.11 | 52.20 | ||||||||||||
1980 | 36.65 | 43.07 | 44.94 | 50.50 | 53.37 | 57.21 | a | 66.18 | 63.82 | 62.05 | 55.08 | 47.38 | 42.81 | 51.92 | ||||||||||||
1981 | 41.31 | 42.93 | 46.66 | 49.82 | 54.15 | 59.97 | 65.74 | 68.85 | 63.23 | 51.90 | 46.52 | 42.94 | 52.83 | |||||||||||||
1982 | 37.08 | 41.98 | 44.58 | a | 46.53 | 55.34 | 62.13 | 64.70 | a | 67.10 | 62.57 | a | 54.34 | 42.97 | 41.12 | a | 51.70 | |||||||||
1983 | 41.96 | d | 45.40 | b | 49.67 | b | 51.52 | e | 58.48 | d | 60.26 | a | 64.27 | c | 67.48 | c | 61.90 | 54.90 | a | 48.31 | a | 38.19 | 53.53 | |||
1984 | 43.02 | 45.47 | 50.02 | 49.00 | 54.53 | 59.57 | a | 67.76 | 66.93 | a | 62.85 | 51.92 | 45.27 | 38.60 | a | 52.91 | ||||||||||
1985 | 36.06 | 41.98 | a | 45.02 | 53.18 | 56.07 | a | 62.26 | a | 70.63 | h | 66.23 | a | 60.52 | a | 53.54 | d | 37.76 | c | 33.62 | b | 49.66 | a | |||
1986 | 42.95 | b | 44.43 | a | 51.00 | a | 49.77 | 55.32 | 65.03 | 64.30 | a | 71.15 | a | 60.75 | b | 55.60 | a | 46.88 | a | 39.68 | 53.90 | |||||
1987 | 38.63 | a | 43.86 | 47.44 | 53.38 | 58.27 | 63.42 | 64.44 | 68.16 | 63.57 | 58.97 | 47.13 | 38.81 | 53.84 | ||||||||||||
1988 | 38.48 | a | 43.34 | 47.05 | 51.58 | 53.87 | a | 59.98 | 68.08 | 66.95 | c | 63.75 | 56.93 | q | 46.87 | g | 41.38 | g | 54.79 | c | ||||||
1989 | 42.44 | g | 36.22 | j | 46.09 | h | 55.83 | j | 55.82 | i | 62.45 | h | 65.60 | k | 65.00 | h | 65.60 | j | 54.64 | j | 46.02 | j | 40.08 | k | ----- | z |
1990 | 42.65 | k | 39.08 | j | 48.89 | i | 54.24 | i | 54.95 | i | 62.19 | i | 69.64 | j | 68.48 | i | 66.32 | k | 53.95 | k | 44.85 | j | 38.11 | m | ----- | z |
1991 | 41.05 | k | 49.25 | j | 44.00 | j | 49.71 | k | 53.48 | i | 58.10 | j | 68.66 | i | 69.36 | i | 70.18 | k | 56.32 | i | 48.16 | k | 42.45 | j | ----- | z |
1992 | 46.40 | j | 48.55 | j | 52.59 | i | 55.02 | h | 61.14 | j | 66.23 | h | 68.63 | h | 71.17 | k | 65.00 | i | 55.62 | j | 45.36 | l | 39.33 | j | ----- | z |
1993 | 36.18 | n | 39.71 | i | 50.14 | i | 51.73 | h | 58.95 | l | 60.79 | i | 63.10 | k | 67.64 | i | 64.70 | j | 57.92 | k | 42.29 | m | 41.37 | l | ----- | z |
1994 | 43.40 | k | 41.94 | j | 50.04 | h | 53.00 | j | 58.97 | l | 59.69 | i | 71.15 | n | 68.32 | i | 66.50 | k | 53.97 | m | 42.61 | k | 43.74 | j | ----- | z |
1995 | 43.39 | l | 51.16 | l | 46.97 | l | 50.83 | j | 57.14 | i | 62.17 | i | 69.76 | l | 66.93 | i | 66.88 | j | 54.75 | k | 51.33 | j | 42.70 | k | ----- | z |
1996 | 41.86 | m | 42.08 | i | 47.95 | k | 52.30 | j | 53.57 | j | 59.28 | l | 67.52 | i | 66.70 | i | 58.40 | j | 52.24 | j | 46.58 | k | 41.50 | k | ----- | z |
1997 | 41.40 | k | 44.42 | i | 46.14 | j | 49.77 | h | 60.32 | l | 61.80 | j | 68.05 | k | 70.98 | j | 65.50 | j | 53.39 | l | 50.64 | l | 41.08 | l | ----- | z |
1998 | 44.68 | n | 46.11 | i | 48.48 | j | 51.84 | h | 56.12 | k | 62.82 | h | 71.83 | j | 69.08 | l | 62.31 | i | 51.88 | k | 48.26 | m | 42.84 | l | ----- | z |
1999 | 44.53 | n | 45.24 | i | 45.55 | i | 51.26 | i | 54.68 | l | 61.98 | h | 68.29 | l | 70.00 | i | 66.36 | i | 56.37 | l | 50.29 | m | 43.24 | j | ----- | z |
2000 | 41.20 | k | 47.20 | i | 47.15 | k | 55.12 | n | 57.73 | k | 64.98 | i | 67.33 | m | 70.26 | j | 65.50 | m | 56.36 | m | 45.16 | n | 41.35 | k | ----- | z |
2001 | 42.57 | j | 43.08 | j | 48.39 | l | 51.58 | k | 58.86 | i | 61.24 | i | 67.85 | n | 68.33 | h | 64.25 | l | 54.14 | j | 47.60 | j | 41.77 | k | ----- | z |
2002 | 41.41 | i | 44.39 | j | 44.12 | j | 52.73 | h | 54.93 | i | 64.40 | j | 70.50 | j | 68.98 | j | 65.72 | l | 55.98 | k | 47.71 | m | 42.88 | n | ----- | z |
2003 | 44.82 | l | 42.71 | k | 48.08 | m | 48.03 | k | 60.75 | s | 64.22 | l | 70.74 | j | 69.47 | l | 64.56 | n | 58.00 | k | 43.07 | p | 42.18 | l | ----- | z |
2004 | 40.91 | n | 44.03 | k | 51.24 | j | 52.42 | j | 57.42 | l | 62.57 | p | 69.68 | n | 69.93 | j | 63.33 | o | 55.07 | q | 45.00 | p | 42.42 | r | ----- | z |
2005 | 40.46 | q | 41.10 | m | 49.18 | l | 49.28 | n | 56.03 | n | 59.90 | o | 69.04 | q | 69.12 | n | 61.29 | p | 53.88 | o | 43.44 | l | 36.22 | o | ----- | z |
2006 | 41.10 | j | 40.75 | h | 41.91 | i | 49.27 | j | 55.88 | k | 61.20 | j | 66.15 | n | 63.62 | k | 61.77 | o | 52.23 | p | 41.65 | m | 39.12 | s | ----- | z |
2007 | 37.57 | q | 39.89 | n | 44.28 | v | 47.03 | n | 53.20 | p | 58.25 | n | ----- | z | 64.05 | u | 60.29 | p | 50.59 | t | 40.36 | p | ----- | z | ----- | z |
2008 | ----- | z | 43.29 | o | 44.69 | r | 47.79 | p | 56.04 | s | ----- | z | 65.55 | t | 65.21 | s | ----- | z | 52.83 | p | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.60 | 33.78 | b | 38.69 | j | |
2010 | 43.65 | a | 44.50 | 44.98 | 47.80 | 51.79 | 58.32 | b | 66.12 | n | 64.57 | a | 61.02 | 52.10 | 43.47 | 41.65 | 50.35 | a | ||||||||
2011 | 39.63 | 38.61 | 44.92 | 45.30 | 51.45 | 58.58 | 63.13 | 65.55 | 63.68 | 52.82 | 43.60 | 37.76 | 50.42 | |||||||||||||
2012 | 39.50 | 40.10 | 42.18 | 50.18 | 53.39 | 57.00 | 64.53 | 66.15 | 61.03 | 52.87 | 45.52 | 41.15 | 51.13 | |||||||||||||
2013 | 35.23 | 41.50 | 47.82 | l | 49.57 | 56.24 | 62.22 | 67.53 | 65.85 | 60.65 | 47.69 | 42.80 | 33.39 | i | 52.93 | b | ||||||||||
2014 | 38.10 | 39.55 | 47.06 | 50.62 | 56.65 | 59.83 | 69.11 | 68.34 | 61.28 | 56.92 | 43.85 | 43.11 | 52.87 | |||||||||||||
2015 | 41.39 | 46.34 | 49.24 | 48.05 | 57.58 | 66.03 | 68.52 | 67.42 | 58.90 | a | 56.05 | 40.93 | 38.74 | 53.27 | ||||||||||||
2016 | 37.66 | l | 42.77 | c | 44.18 | 52.12 | 55.97 | 61.17 | 63.97 | 66.31 | 58.32 | 51.02 | 45.83 | 32.53 | 52.20 | a | ||||||||||
2017 | 31.40 | 37.84 | 43.48 | 45.02 | i | 56.79 | 61.00 | 66.94 | 67.79 | q | 62.95 | 50.61 | 44.67 | 35.92 | 49.16 | b | ||||||||||
2018 | 43.21 | 40.79 | 42.89 | 48.82 | 58.19 | 61.30 | 68.52 | 67.05 | 59.30 | 51.57 | a | 44.28 | 39.68 | 52.13 | ||||||||||||
2019 | 39.66 | 37.11 | 43.00 | 51.38 | 57.81 | 62.28 | ----- | z | 66.81 | m | 59.24 | a | 47.37 | 42.13 | 40.13 | 48.01 | b | |||||||||
2020 | 43.39 | 40.26 | 43.44 | 51.15 | 56.29 | 60.82 | 67.03 | 66.68 | 60.15 | 51.60 | 42.37 | 40.97 | 52.01 | |||||||||||||
2021 | 42.16 | 41.34 | 43.06 | 50.33 | u | ----- | z | ----- | z | 69.14 | x | 67.34 | 60.93 | ----- | z | 46.08 | 39.50 | 48.63 | e | |||||||
2022 | 39.44 | 40.50 | 47.00 | 47.53 | 53.60 | 62.13 | 68.74 | 68.89 | 62.23 | 52.53 | n | 39.63 | 38.69 | 51.67 | a | |||||||||||
2023 | 39.65 | 38.66 | 41.88 | w | 59.70 | y | ----- | z | 61.18 | k | 66.89 | l | 67.16 | o | 60.58 | 52.90 | 43.42 | 42.90 | 46.35 | f | ||||||
2024 | 39.77 | 42.91 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.34 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 39.11 | 42.17 | 45.16 | 49.35 | 55.16 | 60.77 | 66.10 | 66.29 | 61.82 | 53.27 | 44.71 | 40.15 | 52.12 | |||||||||||||
S.D. | 3.60 | 2.53 | 2.21 | 2.28 | 2.12 | 2.11 | 1.84 | 1.98 | 1.92 | 2.36 | 2.45 | 2.87 | 0.93 | |||||||||||||
SKEW | -0.99 | 0.14 | 0.63 | -0.19 | 0.16 | 0.04 | -0.11 | 0.54 | 0.19 | -0.21 | -0.41 | -0.43 | 0.53 | |||||||||||||
MAX | 46.08 | 48.07 | 51.00 | 53.53 | 60.11 | 66.03 | 70.68 | 71.15 | 66.40 | 58.97 | 49.28 | 46.69 | 55.02 | |||||||||||||
MIN | 27.16 | 36.36 | 41.31 | 44.77 | 51.15 | 56.61 | 61.57 | 62.56 | 58.32 | 47.37 | 37.76 | 32.53 | 50.42 | |||||||||||||
YRS | 59 | 60 | 57 | 56 | 57 | 57 | 54 | 57 | 60 | 57 | 60 | 59 | 49 |