YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.44 | o | 52.03 | 50.17 | 46.90 | 37.60 | 30.35 | 43.41 | g | |||||
1944 | 30.32 | 33.00 | 33.35 | 39.90 | 43.32 | 48.93 | 50.77 | 50.32 | 49.43 | 45.84 | 35.20 | 29.84 | 40.85 | |||||||||||||
1945 | 33.26 | 34.82 | 35.68 | 39.23 | 48.06 | 47.37 | 51.23 | 51.84 | 47.30 | 41.61 | 40.23 | 35.43 | a | 42.17 | ||||||||||||
1946 | 33.77 | 34.71 | 36.68 | 40.47 | 45.97 | 49.33 | 53.32 | 51.87 | 48.53 | 39.13 | a | 35.50 | 35.48 | 42.06 | ||||||||||||
1947 | 30.03 | 35.15 | a | 39.26 | 43.24 | a | 46.77 | 49.73 | 53.65 | 51.29 | 49.53 | 47.90 | 39.63 | 34.71 | 43.41 | |||||||||||
1948 | 29.97 | 31.48 | 35.74 | 39.47 | 45.06 | 52.37 | c | 51.42 | 52.94 | 47.70 | 42.32 | 35.50 | 29.58 | 41.13 | ||||||||||||
1949 | 18.87 | 33.82 | 39.06 | 42.43 | 46.87 | 47.67 | 50.48 | 52.65 | 49.87 | 37.71 | 40.20 | 33.06 | 41.06 | |||||||||||||
1950 | 25.19 | 31.64 | 36.80 | a | 38.77 | 42.32 | 50.57 | 52.39 | 53.65 | 49.50 | 46.87 | 39.93 | 41.55 | 42.43 | ||||||||||||
1951 | 34.55 | 35.19 | a | 33.42 | 40.38 | a | 44.55 | 48.77 | 52.13 | 50.48 | 47.63 | 43.81 | 38.10 | 33.45 | 41.87 | |||||||||||
1952 | 32.63 | a | 34.68 | a | 34.97 | a | 39.63 | 43.03 | a | 47.23 | 52.19 | 52.71 | 49.80 | 44.61 | 30.73 | 34.23 | 41.37 | |||||||||
1953 | 40.63 | a | 34.89 | 35.68 | 39.07 | 43.90 | 47.39 | b | 51.00 | 53.71 | 50.67 | 42.87 | 41.63 | 37.80 | a | 43.27 | ||||||||||
1954 | 34.06 | 35.21 | 32.55 | 39.47 | 44.27 | a | 47.53 | 50.55 | 51.84 | 48.03 | 40.26 | 42.43 | 33.61 | 41.65 | ||||||||||||
1955 | 33.39 | 32.07 | 33.55 | 36.63 | 41.61 | 48.63 | 50.50 | a | 50.03 | 48.47 | 44.00 | 37.31 | a | 35.84 | 41.00 | |||||||||||
1956 | 35.81 | 30.64 | a | 36.35 | 39.93 | 46.97 | 47.48 | a | 52.38 | b | 52.55 | 48.90 | 42.00 | 33.90 | 34.71 | 41.80 | ||||||||||
1957 | 25.06 | 34.50 | 39.45 | 41.77 | 48.17 | a | 50.90 | 50.55 | 50.61 | 51.90 | 44.06 | 32.83 | 36.73 | a | 42.21 | |||||||||||
1958 | 36.23 | 41.57 | 34.87 | 40.40 | 47.94 | 54.03 | 56.26 | 55.03 | 51.03 | 43.73 | a | 40.13 | 39.74 | 45.08 | ||||||||||||
1959 | 37.42 | 34.07 | 37.29 | 40.69 | a | 43.87 | 51.17 | 53.32 | 51.94 | 49.53 | 45.71 | 34.83 | 34.23 | 42.84 | ||||||||||||
1960 | 31.65 | 34.52 | 37.55 | 40.77 | 44.06 | 49.40 | 52.45 | 51.58 | 48.93 | 43.58 | 37.73 | 33.06 | 42.11 | |||||||||||||
1961 | 35.52 | 39.46 | 38.39 | 39.67 | 44.90 | 51.13 | 52.65 | 54.90 | 46.70 | 42.87 | 33.53 | 36.03 | 42.98 | |||||||||||||
1962 | 28.45 | 34.25 | 35.61 | 41.30 | 42.71 | 47.30 | 50.61 | 52.23 | 51.03 | 45.03 | 39.60 | 35.97 | 42.01 | |||||||||||||
1963 | 26.68 | 39.57 | 36.57 | a | 38.77 | 43.87 | 48.97 | 50.47 | a | 52.87 | 52.27 | 45.19 | 39.57 | 33.29 | 42.34 | |||||||||||
1964 | 34.61 | 31.41 | 34.87 | 37.77 | 41.19 | 47.83 | 52.55 | 51.71 | 46.43 | 42.13 | 36.70 | 35.03 | 41.02 | |||||||||||||
1965 | 35.48 | 34.39 | 34.26 | 40.80 | 41.48 | 47.07 | 51.52 | 54.03 | 47.03 | 45.03 | 42.50 | 32.77 | 42.20 | |||||||||||||
1966 | 34.35 | 33.07 | 36.35 | 40.67 | 41.65 | 47.30 | 51.23 | 51.16 | 50.07 | 42.06 | 39.47 | 37.90 | 42.11 | |||||||||||||
1967 | 36.58 | 33.68 | 35.19 | 35.37 | 42.19 | 50.57 | 51.97 | 54.42 | 50.67 | 43.81 | 39.20 | 35.32 | 42.41 | |||||||||||||
1968 | 34.42 | 38.10 | 37.94 | 36.30 | 41.87 | 47.63 | 51.48 | 52.06 | 49.27 | 41.77 | 39.66 | a | 33.13 | 41.97 | ||||||||||||
1969 | 28.65 | 30.71 | 33.13 | 37.33 | 45.52 | 52.93 | 50.10 | 48.55 | 48.37 | 41.00 | 38.00 | 36.65 | 40.91 | |||||||||||||
1970 | 35.77 | 34.39 | 35.83 | a | 35.67 | 42.58 | 49.90 | 50.47 | a | 49.03 | 44.20 | 40.58 | 36.87 | 33.61 | 40.74 | |||||||||||
1971 | 33.48 | 33.39 | 34.06 | 36.87 | 42.94 | 46.43 | 51.84 | 53.35 | 46.10 | 39.10 | 37.20 | 32.42 | 40.60 | |||||||||||||
1972 | 32.48 | 35.41 | 38.65 | 36.10 | 43.87 | a | 48.17 | a | 52.35 | 52.77 | 45.30 | 39.90 | 39.50 | 26.87 | 40.95 | |||||||||||
1973 | 31.03 | 34.68 | 34.94 | 38.57 | 42.81 | 48.86 | a | 50.45 | 48.63 | a | 49.63 | 42.55 | 38.10 | 38.39 | 41.55 | |||||||||||
1974 | 28.74 | 33.64 | 36.52 | 38.77 | 42.71 | 48.17 | 51.16 | 52.16 | 49.60 | 39.97 | 39.03 | 37.70 | a | 41.51 | ||||||||||||
1975 | 37.42 | 33.75 | 35.33 | a | 35.47 | 41.97 | 47.63 | 51.68 | 50.26 | 47.50 | 44.58 | 35.17 | 35.29 | 41.34 | ||||||||||||
1976 | 33.90 | 32.28 | 33.26 | 36.47 | 41.48 | 44.97 | 49.77 | 51.84 | 50.13 | 42.52 | 39.90 | 30.87 | 40.62 | |||||||||||||
1977 | 28.23 | 34.75 | 34.06 | 36.86 | a | 40.74 | 48.47 | 50.23 | 54.68 | 48.37 | 43.87 | 35.90 | 36.90 | 41.09 | ||||||||||||
1978 | 37.90 | 38.25 | 38.42 | 39.53 | 41.97 | 50.70 | 52.52 | 53.23 | 49.77 | 42.68 | 31.13 | 28.84 | 42.08 | |||||||||||||
1979 | 24.58 | 35.54 | 37.16 | 39.83 | 44.58 | 46.70 | 52.00 | 52.29 | 50.77 | 47.16 | 36.33 | 36.55 | 41.96 | |||||||||||||
1980 | 28.65 | 35.00 | 36.19 | 39.67 | 42.71 | 47.55 | a | 52.55 | 48.45 | 48.27 | 42.81 | 39.93 | 36.06 | 41.49 | ||||||||||||
1981 | 34.90 | 35.00 | 36.68 | 39.90 | 43.65 | 48.80 | 52.10 | 54.23 | 49.87 | 42.32 | 38.77 | 37.03 | 42.77 | |||||||||||||
1982 | 30.90 | 33.96 | 35.53 | a | 35.57 | 42.61 | 50.43 | 51.53 | a | 52.97 | 49.69 | a | 44.00 | 34.47 | 34.87 | a | 41.38 | |||||||||
1983 | 35.44 | d | 39.38 | b | 42.07 | b | 40.15 | d | 46.22 | d | 48.48 | a | 53.07 | c | 53.96 | c | 48.63 | 44.10 | a | 40.86 | a | 31.71 | 43.67 | |||
1984 | 33.87 | 35.93 | 40.23 | 39.10 | 43.03 | 47.00 | a | 51.68 | 51.73 | a | 48.57 | 42.10 | 37.93 | 31.07 | a | 41.85 | ||||||||||
1985 | 27.48 | 32.11 | a | 33.68 | 42.60 | 43.43 | a | 48.10 | a | 54.21 | g | 51.37 | a | 47.79 | a | 41.78 | d | 30.63 | c | 26.00 | a | 38.63 | a | |||
1986 | 35.72 | b | 37.70 | a | 41.23 | a | 39.37 | 44.29 | 51.93 | 50.77 | a | 53.83 | a | 48.89 | b | 44.43 | a | 39.52 | a | 33.19 | 43.41 | |||||
1987 | 31.03 | a | 35.46 | 37.71 | 40.10 | 45.61 | 48.37 | 52.10 | 52.23 | 49.30 | 44.71 | 40.70 | 34.06 | 42.62 | ||||||||||||
1988 | 32.45 | 34.38 | 36.58 | 41.70 | 43.50 | a | 48.27 | 52.87 | 51.00 | c | 48.50 | 48.13 | p | 41.91 | g | 35.54 | g | 43.25 | c | |||||||
1989 | 35.84 | f | 26.37 | i | 37.04 | h | 43.50 | j | 44.59 | i | 50.05 | h | 52.50 | k | 52.96 | h | 49.40 | j | 43.38 | j | 36.50 | j | 33.80 | k | ----- | z |
1990 | 35.70 | k | 31.78 | j | 37.59 | i | 42.62 | i | 43.50 | i | 50.62 | i | 54.43 | j | 55.91 | i | 53.32 | k | 42.45 | k | 36.10 | j | 29.22 | m | ----- | z |
1991 | 32.10 | k | 41.00 | j | 34.81 | j | 39.68 | k | 43.23 | i | 47.10 | j | 53.45 | i | 54.27 | i | 52.16 | k | 43.00 | i | 40.95 | k | 36.19 | j | ----- | z |
1992 | 39.76 | j | 38.89 | j | 41.23 | i | 44.32 | h | 46.10 | j | 51.59 | h | 54.39 | h | 53.80 | k | 51.67 | i | 43.90 | j | 38.17 | l | 33.52 | j | ----- | z |
1993 | 28.44 | m | 32.05 | i | 41.87 | h | 42.86 | h | 47.05 | l | 49.29 | i | 51.60 | k | 52.86 | i | 46.35 | j | 45.20 | k | 32.00 | m | 35.26 | l | ----- | z |
1994 | 35.70 | k | 33.83 | j | 39.96 | h | 41.80 | j | 47.16 | l | 47.24 | i | 53.82 | n | 52.91 | i | 51.53 | k | 41.39 | m | 34.05 | k | 37.33 | j | ----- | z |
1995 | 36.95 | l | 40.50 | l | 35.60 | k | 39.35 | j | 44.86 | i | 49.67 | i | 54.26 | l | 51.32 | i | 53.40 | j | 42.75 | k | 43.10 | j | 37.20 | k | ----- | z |
1996 | 34.74 | l | 33.15 | i | 37.00 | k | 41.60 | j | 42.48 | j | 44.28 | l | 47.64 | i | 46.86 | i | 41.90 | j | 38.67 | j | 36.95 | k | 34.65 | k | ----- | z |
1997 | 33.10 | k | 34.42 | i | 35.57 | j | 38.32 | h | 45.68 | l | 47.75 | j | 52.15 | k | 53.62 | j | 51.75 | j | 43.30 | k | 41.72 | l | 32.58 | l | ----- | z |
1998 | 36.76 | n | 36.11 | i | 36.38 | j | 38.45 | h | 45.30 | k | 49.91 | h | 55.05 | j | 48.79 | l | 39.48 | i | 34.05 | k | 38.65 | m | 35.05 | l | ----- | z |
1999 | 37.67 | m | 37.53 | i | 35.50 | i | 37.57 | i | 41.75 | k | 48.68 | h | 51.79 | l | 54.91 | i | 48.48 | i | 42.79 | l | 40.71 | m | 35.62 | j | ----- | z |
2000 | 33.55 | k | 39.30 | i | 36.95 | k | 42.44 | n | 45.60 | k | 50.52 | i | 51.78 | m | 53.48 | j | 50.00 | m | 43.89 | m | 34.71 | m | 33.85 | k | ----- | z |
2001 | 33.05 | j | 32.00 | j | 35.68 | l | 38.42 | k | 43.45 | i | 47.43 | i | 50.94 | m | 52.04 | h | 47.39 | l | 40.14 | j | 39.20 | j | 34.85 | k | ----- | z |
2002 | 33.77 | i | 33.39 | j | 32.86 | j | 40.18 | h | 42.50 | i | 50.00 | j | 53.32 | i | 50.43 | j | 48.89 | l | 43.10 | k | 37.47 | m | 36.53 | n | ----- | z |
2003 | 35.89 | l | 30.88 | k | 38.28 | m | 34.75 | j | 44.83 | s | 49.06 | l | 52.05 | j | 52.42 | l | 48.71 | m | 45.15 | k | 33.64 | p | 34.53 | l | ----- | z |
2004 | 33.76 | n | 34.00 | k | 38.43 | j | 38.85 | j | 43.74 | l | 47.50 | p | 50.88 | n | 52.00 | j | 47.00 | o | 42.27 | p | 33.50 | p | 32.62 | r | ----- | z |
2005 | 29.14 | q | 27.67 | m | 34.58 | l | 33.75 | n | 41.88 | n | 45.00 | o | 47.64 | q | 46.82 | n | 40.21 | p | 37.44 | o | 30.06 | l | 25.94 | o | ----- | z |
2006 | 30.95 | i | 27.95 | h | 29.50 | i | 33.35 | j | 36.50 | k | 44.90 | j | 45.18 | n | 41.85 | k | 39.93 | o | 32.69 | o | 29.94 | l | 25.58 | s | ----- | z |
2007 | 22.43 | q | 26.67 | m | 26.89 | v | 29.62 | n | 32.27 | p | 36.75 | n | ----- | z | 44.10 | u | 38.07 | p | 34.36 | t | 24.21 | p | ----- | z | ----- | z |
2008 | ----- | z | 34.71 | o | 36.00 | r | 34.00 | p | 38.58 | s | ----- | z | 45.09 | t | 46.50 | s | ----- | z | 34.27 | p | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.83 | 28.07 | b | 31.95 | j | |
2010 | 38.50 | a | 37.07 | 35.16 | 37.40 | 41.52 | 47.75 | b | 52.24 | n | 50.63 | a | 49.53 | 42.58 | 37.57 | 36.90 | 41.33 | a | ||||||||
2011 | 32.84 | 31.75 | 37.48 | 35.83 | 41.68 | 48.10 | 50.52 | 51.87 | 49.67 | 44.81 | 36.83 | 32.58 | 41.16 | |||||||||||||
2012 | 33.10 | 32.34 | 34.45 | 40.70 | 41.42 | 46.47 | 51.90 | 51.55 | 46.47 | 42.35 | 40.20 | 36.68 | 41.47 | |||||||||||||
2013 | 30.58 | 34.04 | 37.21 | l | 38.33 | 44.90 | 49.93 | 51.45 | 52.94 | 50.63 | 37.61 | 35.93 | 27.23 | i | 42.64 | b | ||||||||||
2014 | 32.13 | 32.79 | 36.52 | 39.47 | 44.16 | 47.50 | 53.55 | 53.23 | 47.37 | 46.52 | 36.53 | 37.77 | 42.29 | |||||||||||||
2015 | 34.94 | 38.11 | 37.58 | 36.10 | 46.68 | 51.43 | 53.00 | 52.26 | 44.55 | a | 44.77 | 32.57 | 33.77 | 42.15 | ||||||||||||
2016 | 32.74 | l | 33.50 | c | 34.55 | 39.60 | 43.77 | 47.23 | 50.35 | 49.35 | 43.67 | 43.48 | 38.33 | 28.03 | 41.08 | a | ||||||||||
2017 | 25.29 | 30.86 | 35.55 | 35.43 | i | 45.52 | 50.63 | 51.74 | 52.29 | q | 50.17 | 39.48 | 37.83 | 29.52 | 39.66 | b | ||||||||||
2018 | 35.74 | 31.93 | 33.13 | 39.07 | 46.81 | 49.50 | 52.42 | 53.19 | 44.73 | 39.47 | a | 36.37 | 33.13 | 41.29 | ||||||||||||
2019 | 33.23 | 31.96 | 31.45 | 41.30 | 46.06 | 48.63 | ----- | z | 51.94 | m | 49.14 | a | 36.00 | 33.50 | 35.03 | 38.63 | b | |||||||||
2020 | 38.42 | 31.28 | 32.94 | 38.60 | 45.19 | 50.33 | 53.03 | 50.87 | 48.07 | 40.23 | 34.03 | 34.39 | 41.45 | |||||||||||||
2021 | 36.48 | 34.25 | 32.13 | 37.22 | u | ----- | z | ----- | z | 53.86 | x | 51.90 | 46.33 | ----- | z | 39.27 | 34.77 | 39.31 | e | |||||||
2022 | 32.84 | 31.43 | 38.29 | 37.83 | 43.35 | 50.60 | 54.58 | 53.71 | 48.57 | 42.29 | n | 31.73 | 33.06 | 41.45 | a | |||||||||||
2023 | 34.03 | 29.93 | 33.25 | w | 44.00 | y | ----- | z | 49.26 | k | 52.53 | l | 54.44 | o | 48.40 | 44.06 | 37.60 | 38.00 | 38.67 | f | ||||||
2024 | 34.26 | 36.31 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.28 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 32.61 | 34.32 | 36.00 | 39.05 | 43.93 | 48.88 | 51.83 | 52.08 | 48.62 | 42.85 | 37.30 | 34.11 | 41.91 | |||||||||||||
S.D. | 4.05 | 2.45 | 2.26 | 1.96 | 1.93 | 1.79 | 1.23 | 1.58 | 1.84 | 2.51 | 2.89 | 3.17 | 0.89 | |||||||||||||
SKEW | -0.89 | 0.70 | 0.39 | -0.23 | 0.47 | 0.63 | 0.91 | -0.40 | -0.71 | -0.42 | -0.52 | -0.45 | 1.07 | |||||||||||||
MAX | 40.63 | 41.57 | 42.07 | 43.24 | 48.17 | 54.03 | 56.26 | 55.03 | 52.27 | 47.90 | 42.50 | 41.55 | 45.08 | |||||||||||||
MIN | 18.87 | 29.93 | 31.45 | 35.37 | 40.74 | 44.97 | 49.77 | 48.45 | 43.67 | 36.00 | 30.63 | 26.00 | 40.60 | |||||||||||||
YRS | 59 | 60 | 57 | 56 | 57 | 57 | 54 | 57 | 60 | 57 | 60 | 59 | 49 |