YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1935 | ----- | z | 43.50 | 51.23 | 61.67 | 70.00 | 85.03 | a | 93.26 | 93.03 | 86.90 | a | 68.50 | i | 44.62 | a | 33.20 | a | 66.24 | b | ||||||
1936 | 41.19 | e | 38.55 | 53.14 | b | 68.60 | 78.53 | a | 84.07 | 97.00 | 92.57 | q | 80.40 | 73.37 | a | 51.30 | 44.23 | 64.58 | a | |||||||
1937 | 28.55 | b | 42.15 | a | 57.29 | 61.23 | 78.83 | a | 80.90 | 93.26 | 90.19 | 80.60 | 69.03 | 54.13 | 45.19 | 65.11 | ||||||||||
1938 | 43.65 | 48.07 | 52.77 | 63.80 | 72.24 | b | 83.63 | 89.90 | 88.52 | 83.33 | 65.61 | 46.47 | 42.29 | 65.02 | ||||||||||||
1939 | 43.27 | a | 41.71 | 58.74 | 70.73 | 80.00 | 81.62 | a | 93.90 | b | 93.55 | 82.77 | 67.00 | 54.17 | 47.58 | 67.92 | ||||||||||
1940 | 40.71 | 49.04 | a | 59.65 | 64.70 | 79.55 | 90.43 | 94.10 | 95.00 | 77.70 | 66.45 | 46.70 | 43.90 | 67.33 | ||||||||||||
1941 | 39.55 | 47.96 | a | 60.58 | 64.33 | 73.55 | 79.23 | 94.29 | 87.45 | 75.40 | 66.71 | 52.40 | 45.52 | b | 65.58 | |||||||||||
1942 | 31.03 | a | 42.71 | 55.03 | 67.17 | 67.81 | 78.27 | 96.23 | 92.94 | 82.30 | 69.42 | 49.63 | 42.74 | 64.61 | ||||||||||||
1943 | 39.16 | 46.79 | 53.29 | 69.67 | 71.94 | 78.63 | 91.94 | 89.61 | 85.60 | 68.35 | 50.60 | 42.42 | 65.67 | |||||||||||||
1944 | 35.48 | 44.55 | 54.23 | a | 64.10 | 75.00 | 77.03 | 91.35 | 90.65 | 82.23 | 73.39 | 45.93 | a | 36.39 | 64.20 | |||||||||||
1945 | 39.87 | 49.57 | 53.13 | 62.53 | 72.10 | 78.90 | 95.90 | 92.74 | 78.27 | 71.29 | 50.50 | 40.74 | 65.46 | |||||||||||||
1946 | 39.93 | a | 45.64 | 58.53 | a | 69.20 | 75.68 | 84.03 | 94.00 | 92.13 | 77.77 | 62.77 | 49.37 | 46.65 | 66.31 | |||||||||||
1947 | 36.83 | a | 50.46 | 60.68 | 65.27 | 80.87 | 76.43 | 95.26 | 91.52 | 80.80 | 68.58 | 48.90 | 42.50 | a | 66.51 | |||||||||||
1948 | 44.68 | 47.93 | 54.06 | 63.37 | 74.31 | b | 85.30 | 90.07 | a | 89.68 | 81.37 | 68.97 | 51.17 | 37.97 | 65.74 | |||||||||||
1949 | 25.13 | 45.93 | 57.00 | 71.20 | 77.90 | 83.87 | 93.87 | 92.68 | 84.47 | 61.60 | a | 56.53 | 45.16 | 66.28 | ||||||||||||
1950 | 36.00 | a | 45.14 | 51.61 | 64.90 | 73.71 | 82.47 | 93.35 | 93.10 | a | 81.38 | a | 74.19 | 56.17 | 45.84 | 66.49 | ||||||||||
1951 | 40.45 | 46.89 | 53.65 | 70.63 | 77.03 | 80.63 | 95.84 | 91.87 | 83.63 | 64.29 | 49.23 | 41.42 | 66.30 | |||||||||||||
1952 | 37.06 | 44.41 | 50.23 | 69.79 | a | 75.87 | 81.03 | 93.81 | 93.00 | 85.76 | a | 77.77 | 49.57 | 42.39 | 66.72 | |||||||||||
1953 | 51.94 | 51.71 | 61.03 | 63.57 | 70.03 | 76.83 | 95.81 | 90.14 | b | 86.03 | 71.10 | a | 57.27 | 43.87 | 68.28 | |||||||||||
1954 | 46.94 | 52.56 | a | 56.71 | 68.60 | 80.00 | 79.17 | 95.45 | 88.23 | 83.67 | 68.16 | 63.90 | 47.53 | a | 69.24 | |||||||||||
1955 | 41.61 | 43.71 | 52.06 | 59.07 | 71.87 | a | 85.43 | 90.26 | 94.97 | 81.63 | 70.90 | 48.93 | 45.29 | 65.48 | ||||||||||||
1956 | 42.03 | 40.50 | a | 58.27 | a | 67.76 | a | 74.77 | 81.10 | 93.90 | 88.52 | 82.97 | 64.90 | 45.60 | 41.90 | a | 65.19 | |||||||||
1957 | 30.77 | a | 43.00 | 54.10 | a | 63.24 | a | 70.90 | a | 83.72 | a | 92.00 | 90.19 | 83.59 | a | 64.83 | a | 50.53 | 43.35 | 64.19 | ||||||
1958 | 40.74 | 50.68 | 53.57 | a | 61.90 | a | 81.90 | 82.27 | 93.77 | 94.74 | 80.40 | 73.32 | 54.47 | 46.65 | 67.87 | |||||||||||
1959 | 44.68 | 49.71 | 57.42 | 68.03 | a | 69.13 | a | 87.70 | 96.83 | b | 89.53 | a | 75.39 | b | 67.47 | a | 53.73 | 40.77 | 66.70 | |||||||
1960 | 33.48 | 43.03 | 57.52 | 66.37 | 71.42 | 89.83 | 99.42 | 88.47 | a | 83.80 | 67.58 | 51.73 | 39.68 | 66.03 | ||||||||||||
1961 | 39.45 | 52.21 | 57.00 | 65.83 | 76.52 | 94.07 | a | 97.65 | 96.26 | 75.24 | a | 65.19 | 49.97 | 41.13 | 67.54 | |||||||||||
1962 | 32.65 | 39.29 | 54.84 | 71.93 | 71.55 | 86.40 | 93.00 | 90.77 | 83.90 | 67.06 | 53.37 | 42.35 | 65.59 | |||||||||||||
1963 | 35.00 | 55.11 | 58.71 | 60.80 | 76.40 | a | 80.37 | 91.77 | 92.23 | 84.60 | 71.10 | 51.00 | 35.77 | 66.07 | ||||||||||||
1964 | 37.39 | 43.24 | 52.58 | 64.03 | 73.87 | 78.63 | 94.42 | 90.06 | 78.80 | 69.90 | 50.17 | 45.23 | 64.86 | |||||||||||||
1965 | 41.71 | 50.89 | 56.13 | 66.93 | 72.84 | 82.73 | 91.90 | 87.48 | 75.17 | 72.39 | 55.70 | 41.42 | 66.27 | |||||||||||||
1966 | 44.71 | 47.11 | 59.23 | 68.57 | 80.90 | 83.13 | 94.35 | 93.32 | 85.70 | 67.39 | 53.63 | 41.81 | 68.32 | |||||||||||||
1967 | 46.71 | 52.89 | a | 56.81 | 57.43 | 76.23 | 83.23 | 97.55 | 98.61 | 87.30 | 66.97 | 53.53 | 40.68 | 68.16 | ||||||||||||
1968 | 40.52 | 51.93 | 62.00 | 64.47 | 74.90 | 86.17 | 97.52 | 85.29 | 80.37 | 66.55 | 48.67 | 42.52 | b | 66.74 | ||||||||||||
1969 | 40.65 | 42.61 | 56.81 | 68.07 | 80.16 | 83.37 | 94.42 | 95.55 | 83.67 | 62.00 | 52.80 | 43.45 | 66.96 | |||||||||||||
1970 | 45.06 | 53.32 | 55.39 | 59.60 | 75.55 | 86.90 | 95.81 | 97.13 | 77.07 | 63.06 | 53.00 | 40.90 | 66.90 | |||||||||||||
1971 | 43.13 | 49.46 | 51.32 | 62.87 | 75.52 | 78.73 | 92.68 | 97.16 | 76.33 | 64.16 | 49.63 | 39.07 | a | 65.01 | ||||||||||||
1972 | 40.52 | 44.83 | 57.87 | 61.97 | 75.87 | 84.53 | 91.19 | 92.87 | 75.20 | 67.68 | 50.03 | 34.84 | 64.78 | |||||||||||||
1973 | 37.74 | 47.68 | 56.58 | 63.63 | 77.03 | 83.70 | 93.84 | 91.03 | 77.40 | 66.71 | 52.03 | 45.00 | c | 66.03 | ||||||||||||
1974 | 39.19 | 47.04 | 53.71 | 62.27 | 71.97 | 89.67 | 91.52 | 91.39 | 85.33 | 66.39 | 50.57 | 40.39 | 65.78 | |||||||||||||
1975 | 37.55 | 44.18 | 50.81 | 53.97 | 69.81 | 78.53 | 94.03 | 84.61 | 83.07 | 64.29 | 49.47 | 39.97 | 62.52 | |||||||||||||
1976 | 41.40 | a | 43.55 | 49.52 | 61.30 | 77.00 | 79.20 | 90.90 | 82.71 | 79.57 | 67.42 | 53.33 | 40.03 | 63.83 | ||||||||||||
1977 | 29.16 | 43.64 | 53.87 | 70.70 | 66.13 | 88.03 | 90.13 | 90.84 | 77.86 | a | 67.74 | 51.40 | 46.84 | 64.70 | ||||||||||||
1978 | 43.48 | 46.00 | 60.68 | 60.73 | 70.48 | 81.20 | 90.10 | 88.19 | 75.90 | 70.65 | 47.00 | 37.13 | 64.30 | |||||||||||||
1979 | 27.19 | 41.29 | 55.81 | 61.90 | 74.71 | 84.73 | 93.19 | 88.16 | 84.20 | 68.90 | 46.97 | 42.16 | 64.10 | |||||||||||||
1980 | 38.06 | 45.76 | 52.94 | 67.60 | 71.35 | 78.30 | 91.77 | 88.55 | 79.13 | 67.39 | 49.97 | a | 41.71 | 64.38 | ||||||||||||
1981 | 38.29 | 47.32 | 57.74 | 63.97 | 70.71 | 79.63 | 91.77 | 95.94 | 83.17 | 64.00 | 53.50 | 45.16 | 65.93 | |||||||||||||
1982 | 38.71 | 41.74 | a | 53.90 | 59.77 | 72.23 | a | 81.90 | 86.24 | b | 91.52 | 76.57 | 64.90 | 45.23 | 39.26 | 62.66 | ||||||||||
1983 | 42.00 | 48.29 | 54.77 | 59.20 | 72.68 | 81.30 | 85.55 | 89.68 | 78.50 | 66.90 | 52.63 | 34.55 | 63.84 | |||||||||||||
1984 | 32.87 | 37.72 | 53.71 | 59.37 | 69.32 | 77.77 | 92.29 | 92.84 | 76.73 | 62.19 | 49.40 | 34.68 | 61.57 | |||||||||||||
1985 | 32.74 | 37.07 | 49.45 | 69.07 | 75.06 | 85.83 | 97.23 | 87.42 | 71.37 | 63.80 | a | 41.60 | 25.03 | 61.31 | ||||||||||||
1986 | 37.23 | 49.18 | 61.35 | 63.33 | 73.77 | 91.23 | 87.97 | 95.29 | 72.50 | 68.74 | 53.60 | 37.00 | 65.93 | |||||||||||||
1987 | 36.23 | 48.14 | 56.00 | 73.87 | 78.77 | 85.10 | 88.65 | 89.81 | 85.23 | 73.55 | 51.70 | 41.60 | a | 67.39 | ||||||||||||
1988 | 36.74 | 47.41 | 56.90 | 66.83 | 74.10 | 86.70 | 94.87 | 92.26 | 79.93 | 77.16 | 50.70 | 35.29 | 66.58 | |||||||||||||
1989 | 34.39 | 33.50 | 53.55 | 68.13 | 72.19 | 85.97 | 95.00 | 86.90 | 80.27 | 66.00 | 52.34 | a | 42.42 | 64.22 | ||||||||||||
1990 | 43.87 | 46.93 | 59.03 | 72.13 | 71.06 | 83.47 | 94.48 | 90.58 | 87.80 | 65.71 | 52.47 | 30.74 | 66.52 | |||||||||||||
1991 | 34.71 | 49.46 | 54.74 | 62.00 | 68.48 | 78.23 | 94.35 | 94.68 | 83.17 | 70.45 | 44.87 | 40.35 | 64.63 | |||||||||||||
1992 | 39.06 | 50.97 | 63.32 | 69.73 | 81.97 | 86.33 | 88.35 | 93.52 | 79.87 | 70.61 | 44.20 | 38.00 | 67.16 | |||||||||||||
1993 | 33.03 | 37.14 | 49.16 | 60.67 | 77.81 | 76.53 | 82.10 | 85.13 | 81.80 | 67.81 | 46.77 | 41.77 | 61.64 | |||||||||||||
1994 | 39.39 | 44.11 | 62.10 | 66.73 | 75.90 | 84.53 | 96.23 | 94.87 | 85.23 | 66.16 | 43.53 | 38.52 | 66.44 | |||||||||||||
1995 | 41.58 | 54.00 | 54.84 | 61.83 | 71.39 | 79.30 | 89.94 | 87.42 | 83.20 | ----- | z | 54.27 | 41.68 | 65.40 | a | |||||||||||
1996 | ----- | z | 46.90 | 57.19 | 64.60 | 70.10 | 84.03 | 96.10 | 92.45 | 77.97 | 67.26 | ----- | z | 45.68 | 70.23 | b | ||||||||||
1997 | 42.35 | 49.71 | 59.39 | 62.76 | a | 78.77 | 82.90 | 88.61 | 92.52 | 83.47 | 67.42 | 53.47 | 40.29 | 66.81 | ||||||||||||
1998 | 46.19 | 49.21 | 55.87 | 62.27 | 69.03 | 78.60 | 97.10 | 95.16 | 85.70 | 67.10 | 53.90 | 40.45 | 66.72 | |||||||||||||
1999 | 46.26 | 45.56 | a | 56.29 | 61.50 | ----- | z | 82.20 | 92.35 | 92.61 | 81.20 | 70.26 | 57.00 | 41.83 | a | 66.10 | a | |||||||||
2000 | 42.35 | 50.90 | 56.06 | 69.70 | 75.87 | 86.03 | 94.67 | a | 95.84 | 79.07 | 66.16 | 43.87 | 38.13 | 66.55 | ||||||||||||
2001 | 36.19 | 43.68 | 59.35 | 61.76 | a | 79.84 | 84.63 | 93.16 | 96.74 | 85.80 | 68.74 | 54.30 | 39.52 | 66.98 | ||||||||||||
2002 | 41.00 | 44.96 | 53.87 | 66.53 | 74.45 | 86.63 | 98.74 | 89.71 | 84.10 | 67.16 | 52.07 | 45.35 | 67.05 | |||||||||||||
2003 | 42.87 | 48.86 | 59.61 | 63.27 | 74.71 | 87.83 | 99.71 | 95.58 | 84.20 | 74.74 | 48.50 | 45.61 | 68.79 | |||||||||||||
2004 | 36.23 | a | 43.52 | 64.03 | 68.97 | 73.19 | 85.30 | 95.61 | 91.58 | 79.37 | 68.16 | 47.30 | 41.71 | 66.25 | ||||||||||||
2005 | 38.68 | 46.82 | 59.68 | 63.43 | 72.13 | 79.50 | 95.52 | 94.74 | 80.17 | 66.58 | 46.93 | 36.39 | 65.05 | |||||||||||||
2006 | 44.16 | 45.46 | 52.35 | 63.70 | 76.81 | 87.20 | 100.10 | 91.61 | 81.27 | 67.75 | c | 53.23 | 39.61 | 66.94 | ||||||||||||
2007 | 40.00 | 49.64 | 61.94 | 65.80 | 78.61 | 86.67 | 100.61 | 93.00 | 80.67 | 64.23 | a | 53.10 | 40.90 | 67.93 | ||||||||||||
2008 | 37.06 | 47.10 | 53.23 | 61.17 | 74.58 | 82.83 | 95.55 | 93.52 | 81.55 | a | 67.03 | 52.70 | 43.74 | 65.84 | ||||||||||||
2009 | 40.42 | 47.00 | 53.77 | 67.23 | 77.06 | 80.83 | 94.65 | 91.06 | 87.17 | 60.03 | 50.83 | 34.39 | 65.37 | |||||||||||||
2010 | 41.87 | 45.39 | 57.10 | 61.80 | 67.39 | 79.47 | 92.87 | 90.39 | 82.43 | 70.13 | 49.57 | 39.03 | a | 64.79 | ||||||||||||
2011 | 37.27 | a | 45.00 | b | 52.61 | 59.00 | b | 67.61 | 78.77 | 91.77 | 95.32 | c | 87.20 | 67.40 | a | 49.10 | 43.13 | a | 64.52 | |||||||
2012 | 43.74 | 48.21 | 57.67 | a | 67.96 | c | 73.60 | a | 83.87 | 97.81 | 96.57 | a | 85.30 | 66.94 | 51.70 | 45.16 | 68.21 | |||||||||
2013 | 29.65 | 47.11 | 58.48 | 67.53 | 77.50 | a | 85.37 | 100.55 | 96.10 | 81.10 | 64.69 | b | 50.23 | 34.16 | 66.04 | |||||||||||
2014 | 39.03 | 49.17 | e | 59.45 | 65.93 | 78.23 | a | 84.00 | 98.87 | 92.35 | 83.27 | 71.80 | a | 47.72 | a | 44.48 | 67.86 | |||||||||
2015 | 38.29 | 54.75 | 63.23 | 67.33 | 76.29 | 93.93 | 93.23 | 95.42 | 82.80 | 72.93 | a | 48.70 | 40.87 | 68.98 | ||||||||||||
2016 | 40.17 | a | 50.45 | 59.10 | 72.03 | 75.90 | a | 88.63 | 93.42 | 93.58 | 81.45 | a | 68.48 | 57.00 | 33.84 | 67.84 | ||||||||||
2017 | 30.74 | 45.43 | 59.10 | 61.73 | 74.58 | 84.86 | a | 99.48 | 95.77 | 81.30 | 65.16 | 53.37 | 36.39 | 65.66 | ||||||||||||
2018 | 43.52 | 45.25 | 55.26 | 60.63 | 79.35 | 82.93 | 97.67 | a | 94.19 | 81.97 | 65.10 | 49.87 | 40.81 | 66.38 | ||||||||||||
2019 | 41.52 | 42.04 | 54.77 | 65.73 | 72.71 | 83.57 | 92.10 | 91.35 | 80.27 | 60.84 | 52.73 | 42.32 | 65.00 | |||||||||||||
2020 | 45.06 | 50.03 | 58.19 | 66.03 | 74.68 | 79.83 | 93.19 | 93.45 | 83.21 | a | 68.32 | 49.90 | 39.13 | 66.75 | ||||||||||||
2021 | 42.06 | 44.21 | 58.06 | 67.33 | 74.58 | 92.40 | 100.94 | 91.29 | 82.43 | 67.77 | 52.53 | 40.16 | 67.82 | |||||||||||||
2022 | 35.39 | 42.93 | 58.70 | a | 60.00 | a | 68.80 | a | 79.67 | 98.00 | 97.39 | 83.70 | 71.19 | 44.37 | 35.74 | 64.66 | ||||||||||
2023 | 42.00 | 44.48 | a | 47.57 | a | 59.57 | 76.71 | 79.80 | 97.16 | 90.87 | 81.93 | 67.70 | a | 50.14 | a | 42.45 | 65.03 | |||||||||
2024 | 38.84 | 50.52 | 55.96 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.44 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 39.09 | 46.39 | 56.18 | 64.81 | 74.46 | 83.21 | 94.01 | 91.96 | 81.45 | 67.81 | 50.76 | 40.84 | 65.91 | |||||||||||||
S.D. | 4.83 | 4.13 | 3.48 | 3.89 | 3.66 | 3.95 | 3.46 | 3.19 | 3.50 | 3.41 | 3.63 | 4.02 | 1.62 | |||||||||||||
SKEW | -0.50 | -0.39 | -0.03 | 0.04 | -0.05 | 0.51 | -0.46 | -0.37 | -0.53 | 0.45 | 0.16 | -0.94 | -0.53 | |||||||||||||
MAX | 51.94 | 55.11 | 64.03 | 73.87 | 81.97 | 94.07 | 100.94 | 98.61 | 87.80 | 77.77 | 63.90 | 47.58 | 69.24 | |||||||||||||
MIN | 25.13 | 33.50 | 47.57 | 53.97 | 66.13 | 76.43 | 82.10 | 82.71 | 71.37 | 60.03 | 41.60 | 25.03 | 61.31 | |||||||||||||
YRS | 88 | 90 | 90 | 89 | 88 | 89 | 89 | 88 | 89 | 87 | 88 | 89 | 84 |