YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | 26.29 | 33.60 | 44.00 | 53.67 | 58.77 | 59.19 | 52.07 | 43.65 | 32.43 | 23.84 | 42.75 | b | ||||||||||
1945 | 24.23 | 27.43 | 30.10 | 32.30 | 46.16 | 51.93 | 58.39 | 60.06 | 50.83 | 41.45 | 29.90 | 22.39 | 39.60 | |||||||||||||
1946 | 21.42 | 24.50 | 31.23 | 42.43 | 44.39 | 56.83 | 60.68 | 61.13 | 53.40 | 41.74 | 30.63 | 31.24 | n | 42.58 | a | |||||||||||
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.15 | r | 49.48 | 43.03 | 36.84 | 24.10 | 22.19 | 35.13 | g | |||||
1948 | 18.93 | a | 23.48 | 24.65 | 40.48 | e | 46.16 | 53.83 | 57.81 | 55.94 | 49.83 | 38.65 | 33.39 | l | 27.75 | c | 39.77 | a | ||||||||
1949 | 16.77 | a | 25.11 | 29.39 | 37.07 | 43.90 | 53.03 | 58.48 | 54.39 | 51.72 | a | 36.97 | 31.30 | 20.52 | 38.22 | |||||||||||
1950 | 23.48 | 27.32 | 27.61 | 38.53 | 40.90 | 53.33 | 54.87 | 51.84 | 46.90 | 40.68 | 28.80 | 21.84 | 38.01 | |||||||||||||
1951 | 18.97 | 22.37 | a | 28.32 | 35.47 | 43.13 | 50.67 | 59.61 | 55.52 | 47.73 | 36.35 | 29.00 | 17.90 | 37.09 | ||||||||||||
1952 | 24.66 | b | 24.62 | 26.77 | 36.63 | 42.84 | 54.03 | 56.52 | 56.97 | 47.60 | 34.29 | 18.67 | 16.71 | 36.69 | ||||||||||||
1953 | 24.71 | ----- | z | 30.00 | 27.93 | 38.10 | 54.97 | 55.26 | 54.00 | 44.97 | 36.87 | 30.27 | 14.35 | 37.40 | a | |||||||||||
1954 | 21.26 | 23.86 | ----- | z | 37.83 | 40.83 | a | ----- | z | 58.94 | 55.06 | 49.87 | 43.77 | 27.07 | 21.68 | i | 39.83 | c | ||||||||
1955 | 21.10 | 19.43 | 30.90 | 32.97 | 39.58 | 48.93 | 52.94 | 53.81 | 49.50 | 34.65 | ----- | z | 23.00 | 36.98 | a | |||||||||||
1956 | 14.55 | 21.21 | 23.90 | 29.87 | 43.19 | 54.63 | 53.68 | 53.90 | 46.30 | 36.35 | 17.57 | 16.71 | 34.32 | |||||||||||||
1957 | 24.13 | 32.29 | 25.97 | 33.87 | 42.58 | 52.57 | 59.42 | 55.35 | 43.43 | 33.29 | 25.93 | 15.65 | 37.04 | |||||||||||||
1958 | 14.53 | a | 27.79 | 22.35 | 34.73 | 49.03 | 53.61 | b | 57.19 | 52.06 | 52.53 | 40.19 | 28.33 | 17.84 | 37.52 | |||||||||||
1959 | 13.06 | 16.43 | 20.55 | 28.70 | 40.65 | 51.40 | 53.65 | 53.39 | 44.97 | 37.00 | 23.33 | 23.27 | e | 33.87 | ||||||||||||
1960 | 21.75 | g | 21.15 | c | 29.68 | 36.67 | 39.23 | 48.40 | e | 54.06 | 57.68 | 43.00 | 35.03 | b | 29.27 | 19.43 | j | 39.42 | b | |||||||
1961 | 15.03 | 22.93 | 30.06 | 28.97 | 40.68 | 51.10 | 52.42 | 52.65 | 40.20 | ----- | z | ----- | z | ----- | z | 37.11 | c | |||||||||
1962 | ----- | z | ----- | z | ----- | z | 38.13 | 41.71 | 49.30 | 55.07 | d | 54.55 | 50.93 | 42.68 | 38.93 | 24.35 | 43.96 | c | ||||||||
1963 | ----- | z | ----- | z | 32.00 | 41.83 | ----- | z | 60.87 | 61.26 | 56.26 | 56.67 | 47.19 | 38.00 | r | ----- | z | 50.87 | e | |||||||
1964 | 21.29 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.21 | c | 51.13 | 36.28 | b | 29.93 | 23.60 | a | 36.74 | f | |||
1965 | 25.52 | b | 20.68 | 23.10 | 36.67 | 43.48 | 51.40 | 59.58 | 55.16 | 48.77 | ----- | z | 31.33 | 21.65 | 37.94 | a | ||||||||||
1966 | 12.77 | 18.54 | 26.61 | 35.53 | 45.13 | 54.10 | 61.45 | 56.06 | 50.60 | 38.03 | 26.90 | 16.74 | 36.87 | |||||||||||||
1967 | 20.29 | 21.96 | ----- | z | ----- | z | 40.77 | 54.67 | 60.00 | 55.32 | ----- | z | 38.16 | 31.00 | 17.43 | a | 37.73 | c | ||||||||
1968 | 24.97 | 32.03 | 28.45 | 34.13 | 40.16 | 53.33 | 59.32 | 57.81 | 50.00 | 38.45 | 31.00 | 20.29 | 39.16 | |||||||||||||
1969 | 26.68 | 20.79 | 23.19 | 41.57 | 46.45 | 53.27 | 61.58 | 61.06 | 54.40 | 38.06 | 26.67 | 25.71 | 39.95 | |||||||||||||
1970 | 21.19 | 29.46 | 26.58 | 34.17 | 47.23 | 55.00 | 61.68 | 58.45 | 50.90 | 37.97 | 31.37 | 21.71 | 39.64 | |||||||||||||
1971 | 19.00 | 24.21 | 28.57 | a | 31.77 | 40.58 | 51.07 | 58.13 | 57.39 | 51.23 | 38.77 | 30.50 | b | 22.77 | 37.83 | |||||||||||
1972 | 20.58 | 23.79 | 30.97 | 33.80 | 45.06 | 54.67 | 57.90 | 56.71 | 51.13 | 42.43 | a | 24.80 | 22.06 | 38.66 | ||||||||||||
1973 | 20.06 | 23.44 | a | 26.03 | 28.57 | 41.00 | 49.87 | 58.26 | 55.74 | 48.97 | 39.74 | 30.50 | 21.68 | 36.99 | ||||||||||||
1974 | 21.32 | 22.36 | 33.71 | 32.17 | 49.29 | 54.77 | 59.68 | 55.23 | 49.40 | 44.06 | 29.10 | 22.47 | a | 39.46 | ||||||||||||
1975 | 17.68 | 19.75 | 28.74 | 33.90 | 41.77 | a | 53.87 | 59.19 | 57.42 | 51.43 | 35.65 | 25.10 | 18.90 | 36.95 | ||||||||||||
1976 | 17.81 | 29.31 | 30.87 | 39.17 | 45.16 | 52.38 | a | 58.81 | 57.13 | 50.20 | 34.19 | 24.27 | 23.83 | a | 38.59 | |||||||||||
1977 | 21.00 | 22.36 | 25.03 | 38.30 | 46.48 | 57.70 | 60.57 | a | 61.06 | 53.37 | 42.52 | 29.24 | a | 31.58 | 40.77 | |||||||||||
1978 | 22.03 | 21.68 | 32.48 | 37.93 | 43.71 | 57.40 | 62.23 | 56.70 | a | 49.27 | 42.65 | 34.73 | 18.39 | 39.93 | ||||||||||||
1979 | 15.97 | 23.64 | 30.13 | 37.80 | 44.74 | 52.83 | 60.93 | a | 56.29 | 50.90 | 40.39 | 24.33 | 22.61 | 38.38 | ||||||||||||
1980 | 25.52 | b | 23.72 | 29.73 | a | 33.63 | 43.00 | 56.27 | 62.71 | 59.52 | b | 53.90 | 38.52 | 26.93 | 29.13 | 40.22 | ||||||||||
1981 | 21.77 | 21.00 | 29.33 | a | 40.30 | 46.45 | 58.20 | 61.52 | 58.16 | 53.13 | 43.03 | 33.27 | 25.37 | a | 40.96 | |||||||||||
1982 | 22.90 | 21.21 | 31.58 | 39.34 | a | 46.71 | 53.97 | 60.19 | 59.74 | 52.33 | 36.57 | a | 30.23 | 21.73 | a | 39.71 | ||||||||||
1983 | 22.23 | 25.70 | a | 30.94 | 33.20 | 41.87 | 52.24 | a | 60.26 | 61.35 | 52.77 | 43.55 | 32.33 | 17.77 | 39.52 | |||||||||||
1984 | 21.24 | b | 24.66 | 28.42 | 33.70 | 48.74 | 54.57 | 60.19 | 59.71 | 50.73 | 38.90 | a | 30.83 | 26.77 | 39.87 | |||||||||||
1985 | 18.26 | 22.29 | 32.60 | a | 39.93 | 47.87 | 55.62 | a | 58.74 | 59.32 | 49.67 | 40.81 | 32.40 | 21.33 | a | 39.90 | ||||||||||
1986 | 25.26 | 27.07 | a | 33.87 | 41.72 | a | 47.90 | 56.80 | 60.32 | 59.84 | 51.93 | 38.32 | 29.50 | 23.16 | 41.31 | |||||||||||
1987 | 21.45 | 26.21 | 27.77 | 36.17 | 45.77 | 54.57 | 58.32 | 58.55 | 50.23 | 41.90 | 30.17 | 21.37 | a | 39.37 | ||||||||||||
1988 | 19.10 | 24.41 | 27.74 | 36.67 | 45.16 | 56.27 | 59.77 | 59.71 | 49.83 | a | 42.00 | 32.20 | 20.83 | a | 39.47 | |||||||||||
1989 | 23.65 | 22.36 | 31.48 | 39.90 | 49.68 | 55.13 | 58.90 | 58.52 | 49.21 | b | 40.84 | 32.03 | 18.19 | 39.99 | ||||||||||||
1990 | 21.77 | 24.79 | 32.65 | 39.17 | 45.81 | 60.07 | 58.81 | 56.87 | 54.27 | 40.48 | 32.80 | 19.52 | 40.58 | |||||||||||||
1991 | 22.52 | 25.32 | 31.03 | 36.63 | 46.71 | 55.93 | 59.53 | a | 58.48 | 51.03 | 41.16 | 30.70 | 27.00 | 40.50 | ||||||||||||
1992 | 21.45 | 28.00 | 30.97 | 38.97 | 47.97 | 52.80 | 59.35 | 58.65 | 49.77 | 40.97 | 26.93 | a | 22.39 | 39.85 | ||||||||||||
1993 | 24.10 | 26.14 | 32.50 | a | 39.47 | 45.94 | 54.83 | 61.03 | 59.48 | 48.30 | 37.87 | a | 27.33 | 23.55 | 40.04 | |||||||||||
1994 | 20.10 | 22.64 | 31.06 | 36.40 | 46.61 | 54.33 | 59.00 | 57.74 | 50.28 | a | 37.19 | 28.32 | b | 25.33 | a | 39.08 | ||||||||||
1995 | 22.40 | a | 28.11 | 29.06 | 34.03 | 44.71 | 51.17 | a | 56.29 | 59.58 | 51.00 | 34.77 | a | 30.48 | a | 24.26 | 38.82 | |||||||||
1996 | 22.00 | 25.07 | 25.69 | b | 36.10 | 51.48 | 55.37 | 61.19 | 57.48 | 48.67 | 39.52 | 29.10 | 21.90 | 39.46 | ||||||||||||
1997 | 19.90 | 23.56 | a | 26.58 | 34.07 | 45.90 | 52.20 | 56.45 | 58.39 | 53.83 | 38.42 | 25.20 | 18.06 | 37.71 | ||||||||||||
1998 | 24.74 | 24.68 | 27.39 | 32.00 | 43.29 | 51.37 | 60.26 | 57.03 | 51.33 | 40.00 | 30.07 | 22.13 | 38.69 | |||||||||||||
1999 | 24.90 | a | 25.89 | 29.35 | 34.33 | 43.94 | 51.90 | 58.35 | 56.97 | 50.00 | 36.00 | 27.93 | 19.90 | 38.29 | ||||||||||||
2000 | 24.23 | 26.07 | a | 30.13 | 38.17 | 45.45 | 55.10 | 58.74 | 56.87 | a | 46.53 | 40.55 | 22.90 | 19.45 | 38.68 | |||||||||||
2001 | 16.26 | 24.11 | 29.55 | 37.37 | 46.03 | 53.83 | 59.90 | 56.13 | 48.67 | 36.58 | 33.47 | 20.58 | 38.54 | |||||||||||||
2002 | 22.10 | 18.46 | 25.13 | 38.20 | 42.87 | 54.52 | a | 58.45 | 56.29 | 49.70 | 37.61 | 27.03 | 23.29 | 37.80 | ||||||||||||
2003 | 23.23 | 26.04 | 31.23 | 36.21 | a | 44.32 | 52.67 | 58.68 | 59.03 | 48.87 | 43.58 | 31.00 | a | 23.58 | 39.87 | |||||||||||
2004 | 21.84 | 21.41 | 33.19 | 37.87 | 44.84 | 52.43 | 55.94 | 55.06 | 47.03 | a | 40.42 | 29.63 | 22.58 | 38.52 | ||||||||||||
2005 | 26.77 | 29.64 | 28.77 | 35.47 | 44.16 | 51.03 | 56.42 | 56.26 | 49.13 | 39.03 | 28.87 | 21.87 | 38.95 | |||||||||||||
2006 | 24.03 | a | 20.96 | 29.45 | 38.93 | 47.74 | 56.47 | 60.00 | 58.97 | a | 47.27 | 38.90 | 28.23 | 22.16 | 39.43 | |||||||||||
2007 | 16.84 | 24.93 | 29.33 | a | 35.00 | 45.39 | 50.67 | 57.65 | 59.42 | 50.87 | 37.16 | 28.10 | 22.74 | 38.17 | ||||||||||||
2008 | 17.16 | 25.48 | 28.10 | 33.80 | 41.94 | 53.87 | 58.43 | a | 56.23 | 47.57 | 36.52 | b | 26.89 | b | 22.94 | 37.41 | ||||||||||
2009 | 20.71 | 21.04 | b | 31.45 | 34.57 | 47.39 | 52.77 | 59.74 | 55.26 | 48.50 | 38.71 | 27.13 | 19.74 | 38.08 | ||||||||||||
2010 | 20.03 | 21.52 | a | 29.13 | a | 38.37 | 43.23 | 55.57 | 60.13 | 57.81 | 51.72 | a | 40.58 | 26.53 | 27.52 | 39.34 | ||||||||||
2011 | 20.55 | 19.74 | a | 29.94 | 38.07 | 42.00 | 54.90 | 61.29 | 62.77 | 50.73 | 38.16 | 30.80 | 19.10 | 39.00 | ||||||||||||
2012 | 25.68 | 25.76 | 31.39 | 38.17 | 47.84 | 55.50 | 58.55 | 57.58 | 49.03 | 39.48 | ----- | z | 23.19 | 41.11 | a | |||||||||||
2013 | 17.52 | 21.79 | ----- | z | 34.17 | 43.97 | 54.70 | 58.55 | 57.29 | 53.80 | 36.71 | 28.47 | 20.55 | 38.86 | a | |||||||||||
2014 | 19.94 | 25.04 | 27.32 | 33.57 | 42.45 | 53.00 | 59.39 | 56.32 | 53.67 | 40.26 | 26.30 | 22.19 | 38.29 | |||||||||||||
2015 | 23.55 | 22.57 | 30.52 | 34.70 | 43.93 | a | 53.20 | 57.97 | 58.03 | 52.53 | 43.19 | 28.03 | 24.16 | 39.37 | ||||||||||||
2016 | 20.42 | 23.34 | 28.73 | a | 33.90 | 40.81 | 54.57 | g | 59.81 | 57.03 | 50.93 | 39.48 | 31.90 | 23.71 | 37.28 | a | ||||||||||
2017 | 24.55 | 30.36 | 31.81 | 36.67 | 41.84 | 53.73 | 58.20 | a | 56.68 | 49.67 | 39.42 | 32.77 | 22.87 | 39.88 | ||||||||||||
2018 | 19.77 | 21.93 | 29.84 | 33.63 | 46.74 | 56.20 | 60.13 | 58.58 | 51.00 | ----- | z | ----- | z | 19.61 | 39.74 | b | ||||||||||
2019 | 24.13 | 22.64 | 29.23 | a | 36.44 | e | 40.87 | 51.52 | a | 57.80 | a | 57.71 | c | 52.47 | 34.31 | e | 28.14 | a | 24.71 | g | 39.57 | a | ||||
2020 | 24.00 | f | 24.41 | 33.45 | 34.61 | b | 47.77 | a | 55.89 | c | 59.60 | a | 57.45 | 46.17 | a | 35.19 | 32.08 | e | 23.73 | p | 42.66 | b | ||||
2021 | 21.17 | s | 18.29 | n | 27.45 | 31.80 | e | 45.13 | 52.53 | 58.64 | f | ----- | z | 48.33 | r | 37.04 | h | 32.31 | q | 25.13 | p | 39.23 | h | |||
2022 | ----- | z | ----- | z | ----- | z | 37.04 | c | 44.54 | g | 57.79 | f | 58.71 | g | 58.04 | h | 51.94 | m | ----- | z | ----- | z | ----- | z | 37.04 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.12 | 24.00 | 29.02 | 35.87 | 44.40 | 53.83 | 58.73 | 57.15 | 49.94 | 39.08 | 28.92 | 21.88 | 38.78 | |||||||||||||
S.D. | 3.25 | 3.12 | 2.80 | 3.20 | 2.78 | 2.34 | 2.17 | 2.35 | 2.88 | 2.85 | 3.41 | 3.16 | 1.43 | |||||||||||||
SKEW | -0.57 | 0.41 | -0.70 | -0.29 | 0.04 | 0.29 | -0.95 | -0.46 | -0.79 | 0.23 | -0.62 | 0.25 | -1.15 | |||||||||||||
MAX | 26.77 | 32.29 | 33.87 | 42.43 | 51.48 | 60.87 | 62.71 | 62.77 | 56.67 | 47.19 | 38.93 | 31.58 | 41.31 | |||||||||||||
MIN | 12.77 | 16.43 | 20.55 | 27.93 | 38.10 | 48.40 | 52.42 | 49.48 | 40.20 | 33.29 | 17.57 | 14.35 | 33.87 | |||||||||||||
YRS | 71 | 71 | 72 | 76 | 75 | 74 | 75 | 77 | 76 | 74 | 71 | 70 | 57 |