YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1937 | ----- | z | ----- | z | 47.23 | a | 61.37 | 71.77 | a | 79.23 | 92.00 | 93.48 | 81.07 | 65.45 | 49.87 | 37.76 | b | 67.92 | b | |||||||
1938 | 40.34 | b | 46.89 | 53.97 | 63.14 | b | 67.29 | 85.70 | 89.13 | 96.78 | m | 80.21 | a | 72.39 | 47.17 | a | 41.84 | 62.55 | a | |||||||
1939 | 39.39 | 35.29 | 52.10 | 62.67 | 77.65 | 85.07 | 94.71 | 88.42 | 83.47 | 67.48 | 55.57 | 49.32 | 65.93 | |||||||||||||
1940 | 30.10 | k | 45.28 | 53.77 | 61.50 | 75.32 | 84.67 | f | 93.33 | a | 88.97 | 81.60 | 74.26 | 48.67 | 43.58 | 66.63 | b | |||||||||
1941 | 43.74 | 43.89 | 48.35 | 61.13 | 75.90 | 80.60 | 86.81 | d | 88.26 | 77.43 | 62.03 | 57.50 | 47.29 | 64.41 | ||||||||||||
1942 | 33.10 | 32.64 | 48.13 | 66.87 | 71.03 | 77.60 | 90.32 | 87.42 | 75.73 | 64.52 | 54.07 | 43.68 | 62.09 | |||||||||||||
1943 | 44.71 | 52.82 | 48.19 | 68.03 | 64.94 | 79.93 | 91.55 | 91.35 | 79.40 | 68.23 | 54.83 | a | 41.06 | 65.42 | ||||||||||||
1944 | 40.55 | 39.62 | 43.03 | 52.23 | 73.58 | 81.10 | 86.10 | 87.81 | 80.40 | 69.47 | a | 51.59 | a | 34.81 | 61.69 | |||||||||||
1945 | 37.23 | 41.50 | 57.77 | 53.03 | 69.00 | 72.20 | 85.77 | 85.29 | 74.57 | 68.84 | 55.47 | 40.32 | 61.75 | |||||||||||||
1946 | 46.10 | 49.64 | 57.10 | 70.23 | 64.61 | 83.83 | 87.90 | 83.94 | 76.83 | 61.65 | 36.53 | 46.26 | 63.72 | |||||||||||||
1947 | 44.26 | 39.89 | 48.52 | 59.30 | 69.29 | 75.37 | 88.26 | 89.74 | 82.53 | 71.23 | 43.20 | 42.45 | 62.84 | |||||||||||||
1948 | 37.84 | 36.79 | a | 44.29 | 68.55 | a | 72.16 | 79.07 | 88.19 | 88.00 | 83.67 | 67.45 | 45.63 | 39.39 | 62.59 | |||||||||||
1949 | 24.71 | 43.29 | 48.26 | 61.43 | 71.03 | 77.77 | 88.87 | 85.23 | 76.73 | 60.94 | 61.43 | 45.29 | 62.08 | |||||||||||||
1950 | 42.65 | 50.29 | 50.50 | a | 61.23 | 66.74 | 83.40 | 84.19 | 84.58 | 71.57 | 74.52 | 52.10 | a | 47.29 | 64.09 | |||||||||||
1951 | 38.65 | 43.21 | 47.55 | 55.67 | 70.13 | 71.93 | 85.06 | 85.39 | 75.23 | 60.94 | 51.13 | 37.84 | 60.23 | |||||||||||||
1952 | 45.06 | 46.03 | 43.48 | 61.97 | 69.39 | 90.13 | 91.00 | 89.58 | 83.10 | 69.58 | 43.30 | 33.58 | 63.85 | |||||||||||||
1953 | 45.13 | 43.14 | 56.97 | 53.90 | 67.65 | 85.77 | 88.58 | 84.84 | 83.13 | 69.48 | 51.87 | 37.52 | 64.00 | |||||||||||||
1954 | 41.45 | 57.11 | 46.29 | 68.70 | 67.39 | 86.83 | 93.39 | 89.52 | 82.23 | 63.94 | 56.87 | 46.87 | 66.71 | |||||||||||||
1955 | 35.52 | 36.75 | 50.52 | 66.27 | 73.26 | 75.10 | 92.35 | 89.94 | 79.10 | 69.61 | 46.40 | 44.03 | 63.24 | |||||||||||||
1956 | 44.16 | 38.21 | 52.23 | 58.87 | 74.81 | 90.30 | 86.65 | 83.90 | 83.33 | 73.90 | 42.20 | 39.65 | 64.02 | |||||||||||||
1957 | 32.81 | 51.36 | 48.10 | 52.13 | 64.71 | 78.70 | 88.71 | 86.68 | 77.20 | 60.97 | 46.33 | 51.26 | 61.58 | |||||||||||||
1958 | 45.90 | 47.29 | 37.39 | 54.53 | 74.61 | 81.50 | 82.81 | 89.94 | 80.33 | 68.19 | 52.33 | 43.77 | 63.22 | |||||||||||||
1959 | 39.81 | 38.61 | 48.84 | 59.53 | 68.71 | 87.50 | 90.39 | 90.10 | a | 75.43 | 60.35 | 51.59 | a | 49.13 | 63.33 | |||||||||||
1960 | 34.35 | 29.55 | 45.55 | 64.13 | 71.13 | 80.87 | 87.77 | 89.32 | 79.23 | 66.52 | 52.03 | 39.29 | 61.65 | |||||||||||||
1961 | 41.13 | 47.25 | 47.52 | 56.23 | 66.45 | 82.33 | 87.10 | 86.52 | 69.47 | 66.13 | 47.57 | 38.23 | 61.33 | |||||||||||||
1962 | 30.52 | 44.64 | 47.45 | 64.47 | 75.68 | 78.27 | 85.87 | 88.39 | 77.03 | 68.68 | 54.07 | 45.10 | 63.35 | |||||||||||||
1963 | 29.20 | a | 49.18 | 51.97 | 65.67 | 76.77 | 86.10 | 92.32 | 84.74 | 80.03 | 74.03 | 54.87 | 36.90 | 65.15 | ||||||||||||
1964 | 44.35 | 37.10 | 44.19 | 58.13 | 73.16 | 80.87 | 93.65 | 85.06 | 77.63 | 68.58 | 51.17 | 43.10 | 63.08 | |||||||||||||
1965 | 46.26 | 37.93 | a | 38.39 | 65.47 | 71.52 | 75.73 | 86.35 | 83.06 | 65.13 | 69.13 | 56.70 | 44.90 | 61.71 | ||||||||||||
1966 | 34.52 | 36.21 | 55.00 | 58.13 | 75.68 | 80.97 | 90.00 | 82.94 | 76.10 | 63.87 | 52.50 | 40.74 | 62.22 | |||||||||||||
1967 | 44.65 | 47.25 | 57.71 | 63.63 | 64.32 | 74.57 | 84.71 | 83.68 | 76.47 | 67.71 | 50.53 | 34.42 | 62.47 | |||||||||||||
1968 | 39.77 | 45.97 | 54.39 | 57.50 | 64.06 | 83.87 | 85.39 | 81.84 | 77.53 | 67.29 | 47.80 | 38.13 | 61.96 | |||||||||||||
1969 | 43.03 | 45.25 | 43.45 | 65.57 | 71.87 | 74.87 | 88.90 | 87.74 | 79.50 | 48.71 | 50.60 | 41.55 | 61.75 | |||||||||||||
1970 | 42.29 | 51.36 | 42.77 | 56.10 | 75.13 | 80.57 | 88.10 | 89.68 | 74.70 | 59.16 | 49.80 | 46.42 | 63.01 | |||||||||||||
1971 | 38.42 | 39.07 | 48.32 | 59.23 | 64.55 | 85.27 | 85.45 | 88.06 | 72.77 | 63.55 | 49.93 | 42.39 | 61.42 | |||||||||||||
1972 | 38.10 | 49.14 | 58.71 | 61.93 | 69.84 | 82.33 | 83.77 | 83.84 | 75.33 | 61.32 | 34.73 | 26.81 | 60.49 | |||||||||||||
1973 | 29.84 | 37.36 | 45.32 | 52.93 | 66.42 | 81.27 | 84.23 | 89.94 | 71.67 | 66.13 | 47.70 | 39.65 | 59.37 | |||||||||||||
1974 | 31.03 | 44.14 | 52.94 | 60.33 | 75.97 | 83.03 | 91.42 | 81.87 | 74.57 | 67.39 | 49.27 | 42.32 | 62.86 | |||||||||||||
1975 | 40.97 | 42.14 | 47.29 | 58.00 | 67.42 | 78.23 | 88.45 | 88.19 | 74.33 | 69.32 | 48.67 | 42.13 | 62.10 | |||||||||||||
1976 | 41.94 | 50.86 | 51.29 | 60.90 | 69.39 | 81.30 | 89.03 | 86.84 | 75.13 | 61.29 | 49.23 | 45.90 | 63.59 | |||||||||||||
1977 | 34.32 | 49.00 | 49.45 | 62.17 | 74.03 | 85.67 | 89.03 | 83.55 | 82.70 | 67.71 | 49.80 | 44.77 | 64.35 | |||||||||||||
1978 | 31.52 | 32.79 | 54.90 | 61.13 | 67.03 | 81.53 | 90.77 | 84.10 | 80.60 | 66.87 | 46.47 | 31.10 | 60.73 | |||||||||||||
1979 | 26.00 | 43.04 | 50.16 | 61.63 | 64.84 | 78.73 | 85.71 | 82.19 | 79.80 | 66.29 | 41.17 | 42.13 | 60.14 | |||||||||||||
1980 | 32.32 | 42.28 | 45.55 | 56.83 | 67.39 | 86.00 | 90.29 | 86.45 | 79.67 | 64.77 | 51.97 | 50.39 | 62.83 | |||||||||||||
1981 | 46.42 | 47.79 | 48.10 | 67.03 | 65.19 | 82.70 | 87.29 | 83.06 | 80.77 | 62.94 | 55.70 | 45.94 | 64.41 | |||||||||||||
1982 | 41.13 | a | 43.14 | 51.65 | 60.07 | 71.10 | 74.40 | 86.81 | 85.88 | o | 74.83 | 63.06 | 46.27 | 41.00 | 59.41 | a | ||||||||||
1983 | 39.13 | 47.07 | 46.13 | 50.83 | 63.84 | 75.27 | 88.42 | 90.58 | 80.70 | 66.74 | 48.87 | 23.00 | 60.05 | |||||||||||||
1984 | 32.57 | a | 38.52 | 45.10 | 50.47 | 72.61 | 79.97 | 87.87 | 86.90 | 73.67 | 56.97 | 53.23 | 42.45 | 60.03 | ||||||||||||
1985 | 33.48 | 37.50 | 54.13 | 63.93 | 72.45 | 80.33 | 87.06 | 86.55 | 70.93 | 63.61 | 38.37 | 32.94 | 60.11 | |||||||||||||
1986 | 47.35 | 44.30 | a | 59.13 | 62.17 | 69.84 | 82.93 | 89.55 | 87.71 | 73.93 | 63.90 | 51.00 | 39.45 | 64.27 | ||||||||||||
1987 | 40.90 | 45.46 | 46.77 | 65.87 | 71.00 | 82.83 | 89.35 | 80.81 | 75.60 | 65.35 | 49.60 | 37.94 | 62.62 | |||||||||||||
1988 | 30.58 | 40.62 | 49.06 | 62.60 | 71.13 | 87.23 | 89.90 | 88.87 | 76.10 | 66.29 | 51.90 | 42.97 | 63.11 | |||||||||||||
1989 | 45.61 | 31.11 | 56.19 | 63.37 | 73.16 | 77.90 | 89.68 | 83.97 | 74.83 | 64.42 | 55.47 | 36.39 | 62.67 | |||||||||||||
1990 | 43.42 | 38.75 | 50.32 | 61.27 | 67.19 | 86.47 | 83.94 | 84.84 | 79.87 | 65.10 | 53.80 | 34.52 | 62.46 | |||||||||||||
1991 | 37.23 | 53.39 | 52.90 | 59.73 | 71.84 | 84.07 | 86.48 | 85.45 | 77.70 | 64.90 | 42.57 | 41.39 | 63.14 | |||||||||||||
1992 | 38.00 | 49.55 | 53.90 | 67.43 | 73.77 | 77.17 | 82.06 | 80.45 | 79.83 | 66.52 | 41.27 | 31.39 | 61.78 | |||||||||||||
1993 | 31.74 | 35.36 | 50.35 | 58.80 | 71.42 | 79.67 | 85.45 | 83.16 | 73.23 | 61.32 | 43.87 | 42.84 | 59.77 | |||||||||||||
1994 | 42.26 | 40.79 | 57.68 | 60.50 | 76.32 | 88.10 | 86.52 | 87.74 | 81.17 | 62.65 | 47.23 | 45.03 | 64.66 | |||||||||||||
1995 | 42.32 | 47.79 | 53.23 | 53.90 | 58.42 | 76.27 | 86.68 | 91.77 | 74.13 | 61.84 | 55.40 | 45.55 | 62.27 | |||||||||||||
1996 | 40.10 | 47.69 | ----- | z | ----- | z | ----- | z | ----- | z | 84.00 | a | 83.29 | 73.33 | 63.74 | 48.24 | a | 44.94 | 60.67 | d | ||||||
1997 | 36.17 | a | 40.75 | 57.00 | a | 53.03 | 70.47 | a | 81.17 | a | 88.37 | a | 82.97 | 78.67 | 63.35 | 46.07 | 36.87 | 61.24 | ||||||||
1998 | 44.34 | b | 44.29 | 48.77 | 59.57 | 74.94 | 79.00 | 86.29 | 85.81 | 83.30 | 61.06 | 53.40 | 40.68 | 63.45 | ||||||||||||
1999 | 45.26 | 53.61 | 57.03 | 55.67 | 68.97 | 79.07 | 89.19 | 83.65 | 71.57 | 66.87 | 60.13 | 43.81 | 64.57 | |||||||||||||
2000 | 41.77 | 50.41 | 52.03 | 64.96 | b | 75.52 | 83.30 | 91.55 | 90.84 | 78.63 | 64.03 | 39.72 | a | 38.87 | 64.30 | |||||||||||
2001 | 41.06 | 37.57 | 48.77 | 62.83 | 69.42 | 83.33 | 91.23 | 87.55 | 79.67 | 65.90 | 54.20 | 43.16 | 63.73 | |||||||||||||
2002 | 43.10 | 47.86 | 47.45 | 65.10 | 72.03 | 88.80 | 93.16 | 87.06 | 74.97 | 56.23 | 46.90 | 45.42 | 64.01 | |||||||||||||
2003 | 47.29 | 38.00 | 53.87 | 62.63 | 68.90 | 75.77 | 94.37 | a | 89.26 | 74.50 | 70.48 | 47.14 | a | 44.58 | 63.90 | |||||||||||
2004 | 42.68 | 41.52 | 59.90 | 61.57 | 74.39 | 77.23 | 85.23 | 81.81 | 79.27 | 65.35 | 45.87 | 43.29 | 63.17 | |||||||||||||
2005 | 40.26 | 47.64 | 52.68 | 58.77 | 70.42 | 80.97 | 93.19 | 85.10 | 81.60 | 63.94 | 54.83 | 40.29 | 64.14 | |||||||||||||
2006 | 50.03 | 44.21 | 50.55 | 66.57 | 74.94 | 87.27 | 89.97 | 85.26 | 70.77 | 61.48 | 53.33 | 39.65 | 64.50 | |||||||||||||
2007 | 28.00 | a | 35.68 | 59.58 | 58.90 | 73.03 | 82.23 | 90.58 | 89.55 | 80.50 | 67.87 | 55.33 | 33.84 | 62.92 | ||||||||||||
2008 | 32.48 | 41.93 | 52.84 | 61.23 | 69.90 | 81.07 | 92.19 | 82.52 | 75.20 | 65.55 | 53.33 | 40.64 | c | 62.41 | ||||||||||||
2009 | 44.74 | 49.00 | 54.65 | 57.17 | a | 70.52 | 76.93 | 84.10 | 83.94 | 75.37 | 51.39 | 53.73 | 33.20 | a | 61.23 | |||||||||||
2010 | 40.35 | 38.29 | 52.45 | 61.77 | 67.55 | 81.97 | 89.00 | 89.26 | 83.40 | 68.42 | 49.73 | 45.84 | 64.00 | |||||||||||||
2011 | 36.65 | 40.68 | 54.42 | 60.13 | 64.47 | l | 84.46 | q | 90.48 | 92.29 | 77.03 | 64.00 | 52.87 | 39.94 | 60.85 | b | ||||||||||
2012 | 48.52 | 35.61 | a | 63.61 | 67.33 | 75.68 | 92.67 | 94.06 | 90.19 | 80.70 | 61.48 | 57.87 | 41.06 | 67.40 | ||||||||||||
2013 | 41.16 | 41.32 | 49.87 | 53.10 | a | 71.42 | 86.90 | 86.13 | 87.45 | 79.20 | 59.29 | 51.40 | 40.61 | 62.32 | ||||||||||||
2014 | 41.55 | 35.07 | 53.35 | 61.73 | 70.35 | 80.57 | 86.42 | 85.16 | 77.83 | 68.55 | 48.47 | 39.58 | 62.39 | |||||||||||||
2015 | 39.61 | 44.79 | 59.81 | 62.63 | 63.39 | 82.32 | h | 86.62 | b | 88.61 | 85.28 | a | 68.65 | 50.70 | 39.55 | 62.69 | a | |||||||||
2016 | 42.00 | 48.14 | 57.93 | b | 59.90 | a | 67.13 | 85.93 | 88.23 | a | 84.77 | 79.77 | 73.94 | 58.40 | 38.77 | 65.41 | ||||||||||
2017 | 37.71 | 51.75 | 61.58 | 62.33 | 68.94 | 83.83 | 92.68 | 84.35 | 78.47 | 63.61 | 58.83 | 43.52 | 65.63 | |||||||||||||
2018 | 45.58 | 40.86 | 57.61 | 60.28 | a | 73.06 | 85.07 | 88.42 | 85.97 | 81.57 | 61.14 | b | 48.64 | b | 43.81 | 64.33 | ||||||||||
2019 | 43.74 | 36.25 | 46.61 | 65.00 | b | 64.39 | 80.17 | 89.10 | 87.10 | 83.83 | a | 57.68 | 48.57 | 42.97 | 62.12 | |||||||||||
2020 | 46.55 | 43.62 | 53.68 | 61.27 | 71.65 | 89.82 | b | 90.55 | 91.84 | 78.33 | 62.48 | 57.70 | 41.84 | 65.78 | ||||||||||||
2021 | 42.03 | 33.36 | 51.58 | 58.66 | a | 67.10 | 84.57 | 90.68 | 90.45 | 84.27 | 68.32 | 59.10 | 50.97 | a | 65.09 | |||||||||||
2022 | 41.10 | 40.43 | 51.23 | 62.37 | 72.93 | a | 86.40 | 92.58 | 89.06 | 84.00 | 67.10 | a | 48.47 | 39.00 | 64.56 | |||||||||||
2023 | 30.32 | 33.22 | e | 44.13 | 62.37 | 71.31 | b | 76.07 | 85.10 | 87.68 | 82.00 | c | 65.26 | 55.83 | 47.65 | 61.74 | ||||||||||
2024 | 38.00 | 51.90 | 52.26 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.39 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 39.56 | 42.96 | 51.09 | 60.78 | 70.37 | 81.64 | 88.56 | 86.65 | 77.98 | 65.20 | 50.41 | 41.23 | 62.98 | |||||||||||||
S.D. | 5.57 | 5.93 | 5.14 | 4.40 | 3.84 | 4.41 | 2.94 | 2.96 | 3.93 | 4.56 | 5.29 | 5.02 | 1.66 | |||||||||||||
SKEW | -0.62 | -0.01 | -0.03 | -0.32 | -0.38 | 0.07 | 0.08 | 0.02 | -0.46 | -0.62 | -0.52 | -0.80 | 0.09 | |||||||||||||
MAX | 50.03 | 57.11 | 63.61 | 70.23 | 77.65 | 92.67 | 94.71 | 93.48 | 85.28 | 74.52 | 61.43 | 51.26 | 67.40 | |||||||||||||
MIN | 24.71 | 29.55 | 37.39 | 50.47 | 58.42 | 71.93 | 82.06 | 80.45 | 65.13 | 48.71 | 34.73 | 23.00 | 59.37 | |||||||||||||
YRS | 86 | 87 | 87 | 86 | 85 | 83 | 87 | 85 | 87 | 87 | 87 | 87 | 80 |