YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.63 | 33.02 | 34.82 | j | ||
1941 | 32.69 | 36.93 | 35.82 | 42.94 | d | 55.82 | 60.33 | 65.47 | 65.44 | 59.62 | 48.84 | 41.50 | 34.16 | 48.30 | ||||||||||||
1942 | 32.68 | 29.70 | 37.53 | b | 46.87 | 55.74 | 64.72 | 67.63 | 65.65 | 59.23 | b | 48.50 | 43.02 | 36.05 | 48.94 | |||||||||||
1943 | 33.43 | a | 37.82 | 39.75 | a | 51.45 | 56.55 | a | 65.25 | 68.61 | 70.60 | 60.50 | 49.66 | 38.38 | 27.34 | 49.95 | ||||||||||
1944 | 24.81 | 32.19 | 37.82 | 42.70 | 54.34 | 63.63 | 66.85 | 67.66 | 59.50 | 50.56 | 37.82 | 31.98 | 47.49 | |||||||||||||
1945 | 31.66 | 37.71 | 39.77 | 43.95 | 57.71 | 62.65 | 68.73 | 68.79 | 61.27 | 52.53 | 43.03 | 31.81 | 49.97 | |||||||||||||
1946 | 30.63 | 35.71 | 40.63 | 53.12 | 54.39 | 68.35 | 69.97 | 67.31 | 62.82 | 50.27 | 37.82 | 37.63 | 50.72 | |||||||||||||
1947 | 30.87 | 34.59 | 38.90 | 46.12 | 56.48 | 65.08 | 70.56 | 67.84 | 64.42 | 54.19 | 34.25 | 31.68 | 49.58 | |||||||||||||
1948 | 28.06 | 29.12 | 31.18 | a | 51.95 | 56.02 | 63.53 | 67.69 | 67.92 | 62.98 | 50.55 | 35.83 | 36.18 | 48.42 | ||||||||||||
1949 | 24.48 | b | 32.20 | 40.69 | 46.70 | 56.63 | a | 62.92 | 67.87 | 65.85 | 61.83 | a | 49.45 | a | 47.27 | 32.21 | 49.01 | |||||||||
1950 | 36.19 | 38.89 | 40.10 | 49.38 | 55.63 | 64.98 | 65.79 | 64.98 | 58.85 | 58.48 | 42.38 | 38.10 | 51.15 | |||||||||||||
1951 | 30.37 | 35.52 | 38.40 | 44.60 | 55.68 | 63.15 | 71.34 | 66.92 | 62.05 | 51.05 | 36.77 | 32.69 | 49.04 | |||||||||||||
1952 | 35.55 | 33.31 | 34.97 | 45.55 | 55.31 | 68.82 | 67.89 | 68.79 | 59.98 | 51.66 | 33.22 | 29.65 | 48.72 | |||||||||||||
1953 | 38.87 | 30.73 | 42.05 | 45.78 | 52.23 | 68.57 | 69.19 | 66.71 | 62.45 | 50.55 | 41.48 | 27.68 | 49.69 | |||||||||||||
1954 | 34.50 | 41.14 | 38.28 | a | 53.00 | 55.85 | 66.10 | 69.63 | 66.02 | 62.75 | 52.00 | 42.15 | 33.19 | 51.22 | ||||||||||||
1955 | 28.97 | 28.14 | 39.63 | 46.42 | 53.45 | 61.72 | 66.90 | 65.98 | 62.35 | 53.24 | 41.45 | 37.66 | 48.83 | |||||||||||||
1956 | 37.10 | 31.29 | 40.69 | 45.93 | 59.68 | 69.00 | 68.47 | 66.89 | 64.22 | 52.69 | 36.25 | 33.73 | 50.49 | |||||||||||||
1957 | 33.98 | a | 41.27 | 38.47 | 43.50 | 52.06 | 65.38 | 70.23 | 65.84 | 58.65 | 48.76 | 30.68 | 36.50 | 48.78 | ||||||||||||
1958 | 29.52 | 37.62 | 30.97 | b | 41.87 | 57.65 | 66.60 | 68.95 | 68.06 | 60.42 | 49.94 | 42.23 | 37.77 | 49.30 | ||||||||||||
1959 | 31.55 | a | 33.30 | 38.08 | 46.98 | 55.71 | 64.95 | 66.71 | 67.77 | 60.65 | 49.02 | 38.02 | 32.76 | 48.79 | ||||||||||||
1960 | 25.74 | 28.26 | 40.26 | 48.90 | 56.00 | 66.03 | 65.82 | 67.47 | 62.23 | 50.08 | 42.42 | 26.69 | 48.33 | |||||||||||||
1961 | 29.45 | a | 35.29 | 39.76 | 45.68 | 56.94 | 64.17 | 67.02 | 64.98 | 57.73 | 50.53 | 37.67 | 29.27 | 48.21 | ||||||||||||
1962 | 29.87 | 38.50 | a | 34.98 | 49.32 | 58.94 | 62.37 | 65.77 | 68.11 | 60.77 | 53.50 | a | 41.92 | 35.45 | 49.96 | |||||||||||
1963 | 27.66 | b | 33.61 | 39.84 | 49.90 | 58.85 | 64.47 | 71.19 | 66.19 | 62.05 | 54.65 | 42.00 | 31.94 | 50.20 | ||||||||||||
1964 | 28.27 | 23.10 | 34.85 | 45.03 | 56.81 | 65.75 | 70.47 | 67.89 | 60.63 | 52.10 | 39.68 | 33.76 | 48.20 | |||||||||||||
1965 | 32.95 | 30.59 | 32.85 | a | 48.13 | 54.16 | 61.52 | 67.94 | 64.97 | 58.10 | a | 51.24 | 44.60 | 35.13 | 48.51 | |||||||||||
1966 | 28.27 | 30.00 | 41.23 | 47.78 | 57.98 | 63.82 | 71.10 | 64.27 | 60.77 | 50.40 | 44.05 | 32.71 | 49.37 | |||||||||||||
1967 | 33.21 | 34.00 | 46.21 | 49.98 | 54.47 | 63.37 | 68.23 | 62.76 | 58.28 | 52.11 | 43.12 | a | 26.00 | 49.31 | ||||||||||||
1968 | 30.97 | 35.91 | 38.15 | 44.47 | 54.82 | 65.30 | 65.60 | 64.40 | 59.70 | 53.02 | a | 38.50 | 32.53 | 48.61 | ||||||||||||
1969 | 38.35 | 33.61 | 31.53 | 48.93 | 56.63 | 62.52 | 70.18 | 68.40 | 60.65 | 46.31 | 37.58 | 35.15 | 49.15 | |||||||||||||
1970 | 30.00 | 36.98 | 34.44 | 44.58 | 56.92 | 62.25 | 68.31 | 68.39 | 58.37 | 44.79 | 39.80 | 36.11 | 48.41 | |||||||||||||
1971 | 32.26 | 32.52 | 40.98 | 46.33 | 54.21 | 65.85 | 67.45 | 63.60 | 58.28 | 48.60 | 39.93 | 28.65 | 48.22 | |||||||||||||
1972 | 34.81 | 38.34 | 45.24 | 49.72 | 55.02 | 65.38 | 66.22 | a | 64.44 | 60.10 | 49.77 | 31.20 | 32.19 | 49.37 | ||||||||||||
1973 | 30.16 | 31.55 | 35.94 | 37.38 | 53.74 | 62.97 | 66.68 | 67.21 | 59.07 | 52.61 | 44.00 | 32.90 | 47.85 | |||||||||||||
1974 | 30.85 | 33.07 | 45.66 | 46.55 | 60.63 | 65.52 | 68.42 | 63.73 | 56.27 | 51.05 | 38.27 | 27.29 | 48.94 | |||||||||||||
1975 | 29.82 | 31.96 | a | 38.89 | 43.48 | 53.35 | 63.60 | 66.52 | 68.03 | 57.22 | 51.90 | 38.90 | 34.66 | 48.20 | ||||||||||||
1976 | 31.29 | 40.52 | 39.19 | 47.57 | 53.68 | 64.60 | 66.84 | 65.13 | 59.27 | 45.15 | 35.48 | 31.55 | 48.35 | |||||||||||||
1977 | 26.87 | 34.45 | 36.92 | 46.80 | 56.27 | 66.83 | 69.39 | 68.06 | 63.32 | 52.66 | 41.52 | 38.18 | 50.11 | |||||||||||||
1978 | 30.76 | 33.75 | 43.05 | a | 50.93 | 54.18 | 66.07 | 70.61 | 65.60 | 60.45 | 51.48 | 39.58 | 28.53 | 49.58 | ||||||||||||
1979 | 24.10 | 32.95 | 39.73 | 47.90 | 53.82 | 62.65 | 68.79 | 65.63 | 61.58 | 53.92 | 34.18 | 35.71 | 48.41 | |||||||||||||
1980 | 34.10 | 37.93 | 39.02 | 45.32 | 53.40 | 69.07 | 72.60 | 67.56 | 62.47 | 49.32 | 38.78 | 40.82 | 50.87 | |||||||||||||
1981 | 34.77 | 38.00 | 38.69 | 52.55 | 55.21 | 68.92 | 70.03 | 65.74 | 61.32 | 50.31 | 44.62 | 37.95 | 51.51 | |||||||||||||
1982 | 31.95 | 31.79 | 40.92 | 47.70 | 54.29 | 63.00 | 69.44 | 68.08 | 60.57 | 48.76 | 38.93 | 30.37 | 48.82 | |||||||||||||
1983 | 33.39 | 33.14 | 39.19 | 41.53 | 51.95 | a | 61.67 | 69.02 | 69.39 | 64.93 | 52.34 | 40.12 | 29.25 | a | 48.83 | |||||||||||
1984 | 29.94 | 35.91 | 37.76 | 44.40 | 60.47 | 64.35 | 68.21 | 66.23 | 61.43 | 44.61 | 40.10 | 33.65 | 48.92 | |||||||||||||
1985 | 27.58 | 33.14 | 40.58 | 49.70 | 56.89 | 64.73 | 67.74 | 68.06 | 59.11 | b | 51.68 | 42.42 | 34.48 | 49.68 | ||||||||||||
1986 | 39.42 | 37.30 | 45.47 | 51.23 | 55.63 | 63.37 | 67.56 | 66.79 | 59.50 | 48.50 | 37.35 | 30.92 | 50.25 | |||||||||||||
1987 | 29.53 | 33.23 | 37.69 | 48.32 | 54.69 | 63.58 | 67.56 | 65.34 | 58.73 | 53.63 | 39.32 | 29.16 | b | 48.40 | ||||||||||||
1988 | 26.35 | 38.05 | 40.11 | 48.05 | 54.50 | 64.15 | 66.15 | 65.32 | 58.90 | 53.53 | 43.52 | 32.66 | 49.27 | |||||||||||||
1989 | 33.83 | a | 33.52 | 47.98 | 52.87 | 59.85 | a | 63.25 | 68.40 | 66.63 | 60.78 | 51.13 | 43.10 | 30.63 | 51.00 | |||||||||||
1990 | 31.95 | 33.96 | 41.58 | 49.05 | 55.44 | 70.47 | 66.15 | 64.44 | 62.28 | 53.26 | 43.78 | 31.13 | 50.29 | |||||||||||||
1991 | 31.68 | a | 38.70 | 41.18 | 48.77 | b | 57.47 | 64.10 | 66.34 | f | 66.41 | b | 59.43 | a | 52.62 | c | 37.14 | b | 32.44 | 48.18 | a | |||||
1992 | 30.17 | b | 37.24 | 42.82 | 52.40 | 56.32 | 63.90 | a | 68.60 | 66.53 | 62.32 | 54.42 | 37.00 | 32.56 | 50.36 | |||||||||||
1993 | 34.15 | 35.96 | 42.42 | 49.85 | 55.52 | 65.33 | 70.32 | 66.50 | 61.20 | 50.48 | 39.18 | 35.52 | b | 50.54 | ||||||||||||
1994 | 35.35 | 36.16 | 41.97 | 48.30 | 57.19 | 69.87 | 70.37 | 69.48 | 62.23 | 51.23 | 42.32 | 38.94 | 51.95 | |||||||||||||
1995 | 34.77 | 42.45 | 43.02 | 46.00 | 54.89 | 62.63 | 67.79 | 69.69 | 63.09 | a | 54.53 | 46.40 | 35.66 | 51.74 | ||||||||||||
1996 | 36.44 | 40.52 | 39.79 | 49.65 | 63.85 | 67.77 | 68.34 | 66.56 | 58.67 | 50.47 | 42.68 | 36.50 | 51.77 | |||||||||||||
1997 | 29.50 | 33.21 | 45.34 | 43.81 | a | 57.15 | 64.10 | 69.95 | 68.79 | 65.32 | 52.65 | 39.02 | 31.82 | 50.05 | ||||||||||||
1998 | 37.53 | 35.84 | 40.00 | 45.03 | 59.12 | a | 68.05 | a | 69.58 | 66.32 | 65.35 | 53.02 | 45.52 | 36.23 | 51.80 | |||||||||||
1999 | 38.37 | 41.98 | 44.15 | 47.02 | 55.23 | 64.93 | 69.68 | 67.47 | 60.60 | 53.40 | 48.63 | 35.00 | 52.20 | |||||||||||||
2000 | 39.76 | 43.29 | 38.84 | 52.22 | 62.90 | 66.27 | 70.31 | 70.79 | 65.55 | 48.73 | 31.85 | 30.94 | 51.79 | |||||||||||||
2001 | 23.35 | 33.14 | 38.84 | 50.76 | a | 57.77 | 65.63 | 70.66 | 66.40 | 62.38 | 53.06 | 41.72 | 33.03 | 49.73 | ||||||||||||
2002 | 33.87 | 33.43 | 38.56 | 52.43 | 57.43 | c | 67.97 | 68.16 | 68.37 | 59.95 | 47.68 | 38.83 | 31.50 | 49.85 | ||||||||||||
2003 | 38.45 | 33.43 | 41.63 | 48.98 | 58.19 | 63.05 | 72.42 | 68.42 | 60.67 | 55.16 | 40.45 | 35.02 | 51.32 | |||||||||||||
2004 | 33.02 | 28.47 | 43.97 | 45.55 | 59.32 | 64.67 | 67.06 | 63.34 | 59.83 | 49.81 | m | 33.73 | j | 34.35 | 49.96 | b | ||||||||||
2005 | 37.63 | a | 36.04 | 36.16 | 47.20 | 55.42 | 64.00 | 69.24 | 65.19 | 63.41 | a | 50.08 | 42.21 | b | 35.75 | c | 50.20 | |||||||||
2006 | 36.15 | 35.88 | 39.87 | 52.48 | a | 60.02 | 67.77 | 70.06 | 66.10 | 56.30 | 49.66 | 42.60 | 32.55 | 50.79 | ||||||||||||
2007 | 25.35 | 35.71 | 43.48 | 46.33 | 54.73 | 63.82 | 67.77 | 70.79 | 62.73 | 53.24 | 42.15 | 31.00 | 49.76 | |||||||||||||
2008 | 29.02 | 36.05 | 39.52 | 46.87 | 54.82 | 66.73 | 67.06 | 65.42 | 59.68 | 51.63 | 41.63 | 33.24 | 49.31 | |||||||||||||
2009 | 35.76 | 38.23 | 42.27 | 46.60 | 58.82 | 64.23 | 68.97 | 67.27 | 58.80 | 47.15 | 42.93 | 26.72 | a | 49.81 | ||||||||||||
2010 | 32.08 | a | 29.25 | 38.23 | 48.02 | 55.34 | 68.73 | 68.63 | 68.90 | 64.92 | 52.32 | 39.00 | 37.34 | 50.23 | ||||||||||||
2011 | 32.58 | 29.21 | 45.82 | 50.67 | 56.02 | a | 69.58 | 72.74 | 71.42 | 60.85 | 51.27 | 41.08 | 27.16 | 50.70 | ||||||||||||
2012 | 37.26 | 33.09 | a | 44.53 | 51.70 | 59.08 | 70.20 | 70.60 | 69.00 | 62.17 | 52.18 | 44.27 | 32.65 | 52.23 | ||||||||||||
2013 | 30.08 | 31.82 | 41.90 | 46.45 | 56.11 | 68.90 | 68.00 | 68.26 | 61.38 | 48.16 | 38.15 | 31.27 | 49.21 | |||||||||||||
2014 | 34.11 | 38.20 | 41.79 | 46.57 | 55.03 | 66.28 | 68.34 | 65.47 | 62.22 | 53.16 | 38.22 | 33.16 | 50.21 | |||||||||||||
2015 | 33.85 | 35.41 | a | 43.39 | 48.22 | 52.55 | 65.00 | 68.23 | 68.34 | 65.35 | 53.35 | 40.85 | 34.18 | 50.73 | ||||||||||||
2016 | 32.56 | 39.26 | 43.11 | 48.12 | 53.89 | 67.75 | 72.48 | 65.27 | 62.27 | 57.37 | 42.65 | 35.15 | 51.66 | |||||||||||||
2017 | 33.48 | 41.36 | 47.84 | 48.23 | 54.82 | 67.35 | 69.35 | 64.92 | 60.60 | 50.53 | 47.63 | 37.00 | 51.93 | |||||||||||||
2018 | 35.35 | 36.82 | 42.95 | 48.73 | 60.74 | 70.02 | 68.94 | 66.35 | 61.52 | 48.58 | 38.42 | 31.42 | 50.82 | |||||||||||||
2019 | 31.53 | 35.09 | 40.00 | a | 49.68 | b | 52.02 | 63.67 | 69.26 | 70.34 | 65.67 | 47.71 | 40.10 | 35.21 | 50.02 | |||||||||||
2020 | 34.10 | 34.02 | 43.28 | a | 48.58 | 60.31 | 68.20 | 70.89 | 71.07 | c | 59.73 | 52.52 | a | 43.63 | 33.87 | 51.68 | ||||||||||
2021 | 31.90 | 31.95 | 40.31 | 46.82 | 55.84 | 65.98 | c | 68.19 | 67.92 | a | 64.68 | 51.06 | 46.41 | b | 39.84 | 50.91 | ||||||||||
2022 | 33.07 | a | 30.77 | 39.56 | 50.67 | 59.93 | a | 67.65 | 71.06 | 67.06 | 65.15 | 49.73 | 37.21 | f | 34.19 | 51.71 | a | |||||||||
2023 | 32.95 | 34.64 | 39.24 | 46.98 | a | 57.84 | 64.63 | 73.77 | 71.02 | 64.80 | 52.26 | 42.57 | 35.31 | 51.33 | ||||||||||||
2024 | 30.82 | 38.64 | 41.12 | a | 47.59 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.86 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 32.15 | 34.85 | 40.11 | 47.69 | 56.29 | 65.37 | 68.79 | 67.02 | 61.18 | 51.15 | 40.39 | 33.26 | 49.85 | |||||||||||||
S.D. | 3.69 | 3.73 | 3.45 | 2.99 | 2.43 | 2.35 | 1.81 | 1.92 | 2.23 | 2.50 | 3.60 | 3.21 | 1.20 | |||||||||||||
SKEW | -0.15 | -0.13 | -0.29 | -0.39 | 0.67 | 0.37 | 0.36 | 0.23 | 0.19 | -0.15 | -0.36 | -0.16 | 0.23 | |||||||||||||
MAX | 39.76 | 43.29 | 47.98 | 53.12 | 63.85 | 70.47 | 73.77 | 71.42 | 65.67 | 58.48 | 48.63 | 40.82 | 52.23 | |||||||||||||
MIN | 23.35 | 23.10 | 30.97 | 37.38 | 51.95 | 60.33 | 65.47 | 62.76 | 56.27 | 44.61 | 30.68 | 26.00 | 47.49 | |||||||||||||
YRS | 84 | 84 | 84 | 83 | 83 | 83 | 82 | 83 | 83 | 82 | 82 | 84 | 80 |