YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.95 | i | 52.84 | 46.13 | 41.74 | 46.90 | i | |||
1938 | 38.52 | 36.04 | 37.10 | 46.07 | 50.00 | 61.41 | h | 72.25 | c | 72.07 | a | 70.45 | j | 48.37 | a | 39.33 | 40.39 | 48.01 | b | |||||||
1939 | 36.80 | a | 32.11 | 41.61 | 51.48 | a | 55.45 | 64.61 | b | 70.42 | 70.71 | ----- | z | 52.74 | 48.00 | b | 41.80 | a | 51.43 | a | ||||||
1940 | 40.26 | 38.79 | a | 46.16 | 47.43 | 58.63 | a | 67.13 | 66.26 | 73.74 | 56.70 | 52.80 | a | 39.48 | a | 38.29 | 52.14 | |||||||||
1941 | 36.97 | a | 40.50 | 40.29 | 40.14 | a | ----- | z | ----- | z | ----- | z | ----- | z | 55.45 | a | 49.19 | 44.67 | c | 36.00 | 42.90 | d | ||||
1942 | 37.26 | 33.30 | a | 40.03 | 44.83 | 49.48 | 63.13 | 72.39 | 71.30 | d | 59.83 | a | 53.48 | 44.34 | a | 39.06 | 50.70 | |||||||||
1943 | 35.84 | 38.46 | 46.87 | 49.19 | c | 57.44 | d | 57.67 | 67.97 | 65.65 | 63.50 | 52.87 | 43.37 | 35.26 | 51.17 | |||||||||||
1944 | 34.48 | 32.52 | 35.32 | 41.70 | 52.13 | 54.50 | 65.39 | 66.52 | 61.57 | 51.65 | 39.07 | 33.74 | 47.38 | |||||||||||||
1945 | ----- | z | 33.14 | g | ----- | z | ----- | z | ----- | z | 61.37 | 71.87 | 65.74 | 63.43 | 53.52 | 40.77 | 35.35 | 56.01 | e | |||||||
1946 | 34.97 | 34.67 | a | ----- | z | 50.03 | 53.84 | 62.83 | 68.16 | 67.48 | 62.20 | 45.71 | 37.03 | 38.68 | 50.51 | a | ||||||||||
1947 | 32.73 | a | 39.86 | 43.55 | 49.13 | 57.71 | 60.30 | 68.47 | a | 62.68 | 63.67 | 51.47 | a | 38.40 | 35.26 | 50.27 | ||||||||||
1948 | 38.48 | 35.14 | 36.19 | 46.00 | 50.87 | 60.20 | 65.00 | f | 65.03 | 62.47 | 53.00 | 40.43 | 31.65 | 47.22 | a | |||||||||||
1949 | 23.13 | 31.57 | 37.45 | 50.57 | 52.87 | 64.73 | 69.35 | 64.48 | 63.30 | 51.45 | 50.43 | 36.03 | 49.61 | |||||||||||||
1950 | 31.26 | 41.39 | 42.03 | 51.00 | 54.45 | 60.67 | 70.19 | 68.26 | 59.93 | 55.87 | 48.87 | 44.57 | j | 53.08 | a | |||||||||||
1951 | 36.87 | 37.96 | 41.77 | 47.33 | 55.19 | 61.83 | 70.68 | 66.97 | 64.00 | 52.20 | a | 41.70 | 34.06 | 50.88 | ||||||||||||
1952 | 31.42 | 37.66 | 35.71 | 46.13 | 57.13 | 56.17 | 67.29 | 68.06 | 63.40 | 59.90 | 39.50 | 35.68 | 49.84 | |||||||||||||
1953 | 40.87 | 37.71 | 40.48 | 44.88 | f | 46.39 | 58.13 | 72.48 | 64.77 | 62.87 | 51.39 | c | 44.53 | 36.84 | 50.59 | a | ||||||||||
1954 | 36.48 | 43.04 | 37.24 | b | 51.53 | 57.81 | 59.53 | 70.45 | 63.29 | 60.07 | 52.63 | a | 44.88 | f | 34.03 | 51.46 | a | |||||||||
1955 | 29.39 | 32.96 | 39.65 | 42.55 | a | 51.61 | 60.37 | 65.77 | 70.19 | 63.50 | 55.43 | a | 42.13 | 39.32 | 49.41 | |||||||||||
1956 | 39.52 | 32.72 | 41.65 | 44.57 | 53.84 | 62.17 | 66.87 | 63.74 | 63.87 | 48.83 | a | 42.20 | 38.39 | 49.86 | ||||||||||||
1957 | 32.23 | 42.46 | 43.00 | 51.54 | b | 49.30 | d | 65.97 | 68.42 | 66.61 | 61.10 | 48.42 | 37.03 | 38.23 | 50.36 | |||||||||||
1958 | 38.29 | 40.61 | 36.00 | 44.00 | 55.52 | 59.10 | 66.71 | 70.06 | 63.73 | 55.88 | e | 42.41 | a | 42.32 | 51.22 | |||||||||||
1959 | 38.61 | 35.64 | 44.90 | 52.03 | 51.32 | 64.77 | 73.00 | 66.03 | 58.83 | 54.61 | 44.93 | 38.32 | 51.92 | |||||||||||||
1960 | 31.90 | 36.00 | a | 45.16 | 47.10 | 53.06 | 68.10 | 70.74 | 67.84 | 64.40 | 52.06 | 40.53 | 35.29 | 51.02 | ||||||||||||
1961 | 37.06 | 38.11 | 39.74 | 49.63 | 51.06 | 67.93 | 71.77 | 67.74 | 58.47 | 53.71 | 39.47 | 35.35 | 50.84 | |||||||||||||
1962 | 35.45 | 37.96 | 36.87 | 50.83 | 49.16 | 61.57 | 66.90 | 68.27 | a | 63.33 | 54.16 | 46.03 | 39.52 | 50.84 | ||||||||||||
1963 | 34.03 | 45.08 | b | 39.23 | 41.07 | 54.06 | 58.60 | 67.06 | 64.81 | 62.57 | 52.45 | 41.66 | a | 37.06 | 49.81 | |||||||||||
1964 | 33.42 | 35.31 | 35.71 | 43.53 | 52.03 | 61.07 | a | 69.52 | 67.16 | 59.50 | 57.81 | 38.47 | 39.19 | 49.39 | ||||||||||||
1965 | 39.16 | 39.21 | 40.26 | 45.00 | a | 51.55 | 56.10 | a | 65.10 | 67.90 | 56.07 | 57.35 | 45.83 | 35.35 | 49.91 | |||||||||||
1966 | 33.23 | a | 35.07 | 43.58 | 51.10 | 56.19 | 62.83 | 68.87 | 70.13 | 60.97 | 53.90 | a | 43.89 | b | 37.52 | 51.44 | ||||||||||
1967 | 37.74 | 40.22 | a | 41.74 | 35.57 | 54.26 | 58.63 | 70.42 | 69.45 | 62.38 | a | 55.87 | 47.83 | 32.61 | 50.56 | |||||||||||
1968 | 36.50 | a | 44.00 | 43.26 | 46.03 | a | 54.52 | b | 63.79 | b | 68.65 | 64.66 | b | 62.97 | 54.23 | 43.13 | 32.00 | 51.14 | ||||||||
1969 | 38.52 | 34.00 | 39.29 | 47.59 | a | 55.39 | 58.43 | 67.42 | 70.48 | b | 63.00 | f | 49.07 | c | 45.10 | 38.19 | 49.41 | a | ||||||||
1970 | 37.10 | 41.22 | a | 40.52 | 41.34 | a | 56.74 | d | 64.48 | a | 72.40 | a | 69.55 | 60.50 | b | 50.67 | a | 45.14 | a | 34.26 | 51.16 | |||||
1971 | 36.65 | 38.46 | 41.29 | 44.53 | 47.48 | 58.35 | d | 68.83 | b | 67.58 | 60.37 | 48.58 | 39.82 | b | 31.06 | 48.58 | ||||||||||
1972 | 32.43 | a | 39.79 | a | 46.45 | 47.69 | a | 53.93 | a | 62.53 | 69.71 | 64.13 | 58.73 | 48.19 | 39.77 | 31.27 | a | 49.55 | ||||||||
1973 | 31.35 | 38.36 | 34.86 | c | 45.30 | 54.84 | 65.90 | a | 67.61 | 69.04 | f | 60.31 | a | 52.77 | a | 40.37 | 38.87 | 48.23 | a | |||||||
1974 | 33.55 | 37.89 | 42.35 | 44.69 | a | 56.47 | a | 64.39 | b | 66.65 | 65.10 | 64.73 | 51.63 | a | 42.43 | 35.35 | 50.44 | |||||||||
1975 | 35.94 | 36.50 | 38.68 | 38.70 | 54.06 | 63.62 | a | 66.90 | 64.68 | 64.67 | 50.06 | 41.27 | 40.45 | 49.63 | ||||||||||||
1976 | 38.87 | 38.72 | 39.40 | a | 41.27 | 57.39 | 62.17 | 67.39 | 59.87 | 58.67 | 52.65 | 46.47 | 34.33 | y | 51.17 | a | ||||||||||
1977 | 33.16 | 42.76 | c | 33.68 | 49.20 | 46.80 | a | 64.67 | 69.55 | 68.84 | 60.97 | 54.74 | 45.24 | a | 42.62 | b | 51.02 | |||||||||
1978 | 37.81 | 39.61 | 44.81 | 42.69 | a | 53.55 | 62.53 | 67.55 | 65.84 | 59.79 | a | 57.37 | a | 40.53 | 32.26 | 50.36 | ||||||||||
1979 | 31.97 | 34.42 | b | 40.65 | 45.48 | a | 54.06 | 63.32 | b | 66.48 | 64.63 | a | 65.77 | 53.10 | a | 40.83 | 39.74 | 50.04 | ||||||||
1980 | 40.40 | a | 41.00 | 38.42 | 45.17 | a | 47.71 | 59.27 | 69.16 | 65.81 | 60.87 | 54.84 | 44.47 | 41.73 | a | 50.74 | ||||||||||
1981 | 40.45 | 41.39 | 40.94 | 49.07 | 55.13 | 68.40 | 68.55 | 68.19 | 62.07 | 47.45 | 44.52 | a | 39.87 | 52.17 | ||||||||||||
1982 | 33.74 | 37.96 | 37.84 | 45.73 | 54.35 | 58.71 | b | 66.55 | 67.13 | ----- | z | 50.67 | a | 38.83 | 35.17 | a | 47.88 | a | ||||||||
1983 | 37.55 | 37.96 | 38.84 | 39.47 | 53.00 | a | 58.47 | 63.16 | 64.26 | 62.80 | 51.97 | a | 41.33 | 37.90 | a | 48.89 | ||||||||||
1984 | 39.29 | 38.17 | 43.48 | 42.48 | a | 58.39 | 61.23 | 69.45 | 66.13 | 63.57 | 45.87 | 39.27 | 31.55 | 49.91 | ||||||||||||
1985 | 33.94 | 37.15 | a | 37.26 | 51.17 | 52.77 | 65.13 | 70.03 | a | 65.03 | a | 56.10 | 51.00 | 39.77 | 37.87 | 49.77 | ||||||||||
1986 | 40.90 | 40.82 | 45.60 | a | 45.23 | 55.55 | 64.24 | e | 64.57 | j | 70.81 | 56.52 | c | 51.29 | 44.69 | a | 36.13 | 50.16 | a | |||||||
1987 | 32.61 | 38.79 | 40.13 | 51.03 | 54.07 | b | 63.60 | 62.65 | 66.39 | 61.40 | 56.45 | 41.59 | a | 31.74 | 50.04 | |||||||||||
1988 | 35.35 | 40.86 | 42.00 | a | 47.20 | 51.65 | 60.13 | 70.35 | 66.40 | a | 61.40 | 58.48 | 42.97 | 35.26 | 51.00 | |||||||||||
1989 | 33.97 | 36.00 | 45.45 | 54.03 | a | 55.43 | a | 63.48 | a | 70.16 | 64.45 | 61.67 | 50.48 | 45.73 | 38.33 | a | 51.60 | |||||||||
1990 | 35.55 | 35.43 | 44.45 | 49.33 | 55.03 | a | 62.87 | 70.52 | 65.87 | 62.37 | 54.71 | 42.63 | 30.03 | 50.73 | ||||||||||||
1991 | 35.35 | 44.75 | 36.23 | a | 44.83 | 51.26 | 60.80 | 67.35 | 65.19 | 64.76 | a | 57.35 | 44.43 | 37.23 | 50.80 | |||||||||||
1992 | 35.97 | 41.55 | 41.82 | c | 50.23 | 57.90 | b | 59.63 | 66.55 | 69.71 | 63.70 | 55.48 | b | 40.27 | 32.71 | 51.29 | ||||||||||
1993 | 34.61 | 37.71 | 44.77 | 47.47 | 55.35 | 61.38 | a | 64.90 | b | 65.94 | 61.53 | 53.81 | 40.67 | 35.97 | 50.34 | |||||||||||
1994 | 38.06 | 35.86 | 45.33 | a | 50.20 | 53.30 | a | 66.31 | a | 70.68 | 71.45 | b | 62.40 | 50.13 | 35.17 | 37.10 | 51.33 | |||||||||
1995 | 37.48 | 43.96 | 41.84 | 45.97 | 50.13 | 58.83 | 67.26 | 69.42 | 64.43 | 54.74 | 49.10 | 38.52 | 51.81 | |||||||||||||
1996 | 39.79 | c | 43.07 | 43.71 | 49.58 | f | 56.79 | b | 64.07 | 72.19 | 71.16 | 61.90 | 53.00 | b | 45.14 | b | 39.97 | a | 53.71 | a | ||||||
1997 | 37.33 | d | 37.54 | 45.10 | 48.71 | f | 62.19 | 62.30 | 65.35 | 66.32 | 62.72 | a | 49.84 | 42.67 | 33.61 | 51.36 | a | |||||||||
1998 | 36.03 | 34.96 | 40.03 | a | 40.93 | 45.00 | 58.00 | b | 67.71 | 68.43 | c | 59.50 | b | 48.90 | 40.56 | e | 33.42 | 47.79 | ||||||||
1999 | 37.16 | 35.96 | a | 38.13 | 41.33 | 51.84 | 61.13 | 65.65 | 64.35 | 61.43 | 53.94 | 45.10 | 36.48 | 49.38 | ||||||||||||
2000 | 38.32 | 38.14 | 40.45 | b | 49.70 | 58.00 | 64.27 | 66.61 | 68.06 | 60.53 | 51.67 | a | 36.93 | 38.35 | 50.92 | |||||||||||
2001 | 33.55 | 33.89 | 42.87 | 41.93 | a | 60.77 | 65.83 | 67.87 | 68.13 | 62.00 | 55.58 | 43.77 | 33.42 | 50.80 | ||||||||||||
2002 | 33.06 | 38.14 | 38.87 | 46.17 | 53.35 | 64.37 | 69.94 | 67.35 | 62.63 | 50.19 | 44.00 | 35.45 | 50.29 | |||||||||||||
2003 | 40.58 | 36.18 | 41.26 | 41.75 | b | 53.43 | a | 63.10 | 72.10 | 67.39 | 64.33 | 56.68 | 36.37 | 35.29 | 50.70 | |||||||||||
2004 | 33.10 | 34.07 | 47.32 | 47.97 | 55.90 | 62.07 | 68.19 | 66.06 | 60.40 | 49.39 | 38.03 | 35.16 | 49.81 | |||||||||||||
2005 | 36.97 | 37.39 | 40.60 | a | 43.27 | 52.58 | 59.03 | a | 71.58 | 67.68 | 57.43 | 50.45 | 44.13 | 37.45 | 49.88 | |||||||||||
2006 | 35.61 | 36.56 | a | 36.03 | 43.00 | 56.60 | a | 65.70 | 71.39 | 64.43 | a | 60.43 | 48.45 | 43.00 | 33.16 | 49.53 | ||||||||||
2007 | 30.32 | 38.25 | 44.87 | 47.63 | 55.94 | 62.54 | b | 70.23 | 67.90 | 59.13 | 50.35 | 45.37 | 31.32 | 50.32 | ||||||||||||
2008 | 32.14 | b | 36.24 | 41.58 | 46.70 | 53.97 | 64.36 | b | 68.80 | a | 69.28 | b | 62.30 | 52.15 | e | 45.37 | 34.00 | b | 50.57 | |||||||
2009 | 36.55 | 35.43 | 37.97 | 44.13 | 59.16 | 57.67 | 71.42 | 66.58 | 63.87 | 43.00 | d | 40.83 | 31.90 | 49.04 | ||||||||||||
2010 | 34.71 | c | 37.12 | b | 38.07 | c | 39.00 | b | 45.63 | d | 62.93 | c | 69.59 | n | 63.86 | j | 60.32 | b | 52.48 | j | 39.21 | a | 37.59 | b | 43.84 | c |
2011 | 34.66 | b | 33.04 | d | 36.96 | h | 46.39 | g | 47.04 | f | 58.38 | a | 66.10 | 67.59 | d | 63.08 | e | 53.00 | a | 38.61 | g | 31.83 | m | 53.69 | e | |
2012 | 33.89 | v | 38.92 | p | 40.26 | l | 48.59 | m | 53.15 | r | 63.15 | c | 66.27 | e | 70.61 | c | 63.38 | a | 51.53 | a | 43.27 | d | 33.79 | c | 56.00 | e |
2013 | 31.14 | b | 34.11 | 45.13 | 47.30 | 55.10 | 64.70 | 71.58 | 66.10 | 63.11 | b | 48.20 | a | 42.13 | 33.23 | 50.15 | ||||||||||
2014 | 39.10 | 41.64 | 44.53 | a | 48.18 | b | 56.07 | d | 64.64 | b | 68.92 | e | 66.20 | f | 63.04 | c | 54.70 | d | 42.93 | o | 35.92 | g | 53.43 | c | ||
2015 | 36.85 | e | 42.68 | 45.71 | 46.37 | c | 51.24 | b | 65.79 | f | 65.33 | a | 69.58 | 63.77 | 54.90 | a | 36.00 | 31.65 | 49.46 | a | ||||||
2016 | 35.03 | 39.24 | 43.13 | 47.63 | 52.45 | b | 67.83 | 70.93 | a | 68.94 | 59.27 | 51.80 | a | 43.13 | 35.45 | 51.24 | ||||||||||
2017 | 34.58 | 40.57 | 44.07 | c | 48.20 | 53.80 | a | 64.87 | 71.73 | e | 69.45 | 59.93 | c | 50.90 | 45.14 | a | 36.67 | g | 53.02 | a | ||||||
2018 | 37.90 | a | 33.67 | d | 40.26 | d | 49.00 | d | 54.10 | 64.08 | d | 71.42 | l | 69.86 | j | 63.95 | i | 50.28 | f | 42.41 | a | 34.32 | l | 45.92 | e | |
2019 | 35.85 | e | 30.33 | j | 37.97 | a | 46.33 | c | 46.07 | d | 60.12 | n | 67.60 | f | 68.42 | e | 60.13 | o | 46.83 | a | 40.11 | b | 32.91 | i | 45.94 | e |
2020 | 29.52 | h | 30.58 | c | 37.76 | b | 41.00 | u | 59.62 | w | 60.18 | m | 65.57 | q | 65.57 | x | 60.60 | t | ----- | z | ----- | z | ----- | z | 34.17 | j |
2021 | ----- | z | 35.00 | w | ----- | z | ----- | z | ----- | z | ----- | z | 76.40 | u | 70.44 | v | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2022 | ----- | z | 26.67 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2023 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2024 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 35.70 | 37.82 | 40.94 | 46.19 | 53.70 | 62.20 | 68.70 | 67.25 | 61.56 | 52.28 | 42.33 | 36.13 | 50.37 | |||||||||||||
S.D. | 3.10 | 3.29 | 3.30 | 3.73 | 3.44 | 3.05 | 2.37 | 2.47 | 2.30 | 3.14 | 3.19 | 3.06 | 0.96 | |||||||||||||
SKEW | -0.83 | 0.11 | -0.06 | -0.37 | -0.42 | -0.17 | -0.19 | 0.01 | -0.72 | -0.18 | 0.07 | 0.10 | -0.68 | |||||||||||||
MAX | 40.90 | 45.08 | 47.32 | 54.03 | 62.19 | 68.40 | 73.00 | 73.74 | 65.77 | 59.90 | 50.43 | 42.62 | 52.17 | |||||||||||||
MIN | 23.13 | 30.58 | 33.68 | 35.57 | 45.00 | 54.50 | 62.65 | 59.87 | 55.45 | 43.00 | 35.17 | 30.03 | 47.38 | |||||||||||||
YRS | 80 | 80 | 79 | 76 | 78 | 78 | 76 | 77 | 76 | 81 | 80 | 76 | 58 |