YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1936 | ----- | z | ----- | z | ----- | z | ----- | z | 73.10 | 76.23 | 87.45 | 87.39 | 76.93 | 67.58 | 47.97 | 37.42 | 69.26 | d | ||||||||
1937 | 19.52 | 35.39 | 49.81 | 55.10 | 73.03 | 74.60 | 91.26 | 88.10 | 80.37 | 65.87 | 48.33 | 41.35 | 60.23 | |||||||||||||
1938 | 37.61 | 45.71 | 47.23 | 61.07 | 68.80 | a | 80.03 | 88.16 | 85.61 | 82.13 | 61.97 | 39.73 | 37.23 | 61.27 | ||||||||||||
1939 | 37.90 | 36.57 | 50.58 | 64.23 | 75.31 | b | 73.57 | 87.23 | 91.03 | 80.40 | 59.26 | 51.27 | 41.65 | 62.42 | ||||||||||||
1940 | 35.87 | ----- | z | 48.29 | x | 57.23 | 76.87 | 85.57 | 90.13 | 88.90 | 70.57 | 61.55 | 37.77 | 38.06 | 64.25 | b | ||||||||||
1941 | 37.26 | ----- | z | 53.26 | 59.50 | 69.00 | ----- | z | 85.91 | t | 72.79 | q | 65.83 | a | 62.19 | 50.53 | 38.67 | a | 54.53 | d | ||||||
1942 | 30.19 | 38.86 | 50.16 | 65.82 | b | 64.90 | 76.93 | c | 92.38 | o | 92.61 | 80.77 | 67.16 | 44.87 | 35.84 | 58.92 | a | |||||||||
1943 | 32.47 | a | 42.74 | a | 46.68 | 66.82 | b | ----- | z | 73.67 | 90.37 | a | 87.55 | 85.53 | 64.57 | a | 49.47 | 38.68 | 61.68 | a | ||||||
1944 | 34.55 | 43.62 | 49.48 | 63.17 | a | 74.55 | 75.53 | 90.81 | 90.71 | 81.97 | 72.90 | 42.90 | a | 36.68 | 63.07 | |||||||||||
1945 | 34.83 | a | 43.04 | 50.00 | a | 61.93 | b | 71.47 | a | 75.63 | 91.90 | 92.52 | 77.13 | 69.19 | 44.70 | 36.33 | a | 62.39 | ||||||||
1946 | 34.70 | a | 38.21 | 49.32 | 65.00 | 72.74 | ----- | z | 88.48 | 89.70 | a | 74.43 | 55.48 | 45.83 | 41.10 | 59.55 | a | |||||||||
1947 | 31.14 | b | 45.96 | 58.00 | 64.13 | 76.90 | 73.80 | 89.58 | 87.81 | 80.33 | ----- | z | 43.23 | 37.37 | a | 62.57 | a | |||||||||
1948 | 38.19 | 41.55 | 48.23 | 58.40 | 68.90 | 81.53 | 84.81 | 84.48 | 77.83 | 68.42 | 49.15 | q | 22.31 | o | 65.24 | b | ||||||||||
1949 | 17.88 | f | 38.14 | 50.39 | 69.07 | 75.79 | c | 80.57 | 88.71 | 89.50 | a | 82.86 | b | 59.74 | 55.86 | a | 37.19 | 66.16 | a | |||||||
1950 | 28.81 | 38.43 | 45.68 | 60.30 | 68.85 | d | 76.27 | 87.19 | 88.00 | 77.33 | 66.56 | d | 48.42 | k | 41.13 | 61.69 | a | |||||||||
1951 | 33.57 | c | 38.70 | e | 46.03 | 65.87 | 71.90 | 76.87 | 90.35 | 86.32 | 81.43 | 60.16 | 47.28 | e | 32.48 | 60.91 | ||||||||||
1952 | 32.60 | a | 35.31 | 43.29 | 64.23 | 68.77 | i | 73.68 | h | 87.97 | 87.34 | b | 82.57 | 77.94 | n | 48.43 | i | 34.89 | d | 58.53 | d | |||||
1953 | 43.21 | g | 43.54 | 53.36 | f | 59.77 | 65.74 | 73.13 | 90.74 | 86.03 | 82.83 | 69.23 | 51.21 | b | 36.42 | 65.86 | b | |||||||||
1954 | 38.65 | 48.25 | d | 52.30 | a | 62.27 | 75.33 | d | 79.06 | m | 89.68 | 83.23 | 78.37 | 64.50 | a | 53.90 | 33.17 | a | 61.78 | a | ||||||
1955 | 31.67 | g | 32.73 | b | 45.20 | u | 53.60 | 67.96 | d | 80.37 | 84.81 | 90.77 | 78.50 | 64.19 | 38.83 | 36.52 | b | 62.83 | b | |||||||
1956 | 36.23 | 34.59 | 49.10 | 65.10 | 70.72 | b | 77.52 | e | 89.90 | 87.03 | a | 80.67 | 59.29 | 46.13 | 34.61 | 60.91 | ||||||||||
1957 | 23.58 | 38.29 | 50.29 | 61.87 | 70.68 | 79.97 | 87.77 | 86.35 | 83.60 | 60.42 | 47.52 | a | 37.32 | 60.64 | ||||||||||||
1958 | 33.87 | 43.00 | 49.87 | 57.73 | 79.29 | 80.00 | 89.84 | 91.74 | 76.57 | 69.87 | 46.80 | 41.47 | a | 63.34 | ||||||||||||
1959 | 39.71 | 43.39 | 51.71 | 64.43 | 66.35 | 81.47 | 90.84 | 85.00 | 71.41 | a | 62.39 | 46.17 | 37.06 | 61.66 | ||||||||||||
1960 | 30.24 | b | 38.07 | b | 47.41 | d | 62.00 | 65.90 | b | 82.27 | 95.76 | j | 83.00 | 82.28 | a | 64.52 | 46.83 | 38.45 | 58.27 | a | ||||||
1961 | 35.58 | 43.93 | 52.06 | 61.83 | 72.10 | 87.77 | 91.65 | 93.03 | 73.13 | 62.10 | 44.53 | 33.29 | 62.58 | |||||||||||||
1962 | 26.68 | 36.71 | 48.65 | 68.63 | 67.58 | 80.60 | 86.23 | 84.94 | 80.33 | 63.29 | 48.83 | 41.23 | 61.14 | |||||||||||||
1963 | 33.32 | 52.14 | 54.10 | 57.80 | 73.00 | 76.53 | 85.90 | 87.74 | 83.37 | 68.94 | 47.07 | 32.61 | 62.71 | |||||||||||||
1964 | 31.48 | 34.07 | 43.65 | 59.50 | 69.90 | 75.67 | 89.00 | 84.35 | 75.23 | 69.61 | 46.07 | 36.03 | 59.55 | |||||||||||||
1965 | 35.90 | 41.29 | 51.71 | 63.40 | 69.32 | 79.43 | 88.94 | 83.68 | 73.13 | 71.55 | 49.77 | 38.10 | 62.18 | |||||||||||||
1966 | 39.23 | 39.29 | 54.26 | 65.37 | 77.45 | 77.77 | 90.16 | 89.32 | 83.13 | 62.97 | 47.67 | 35.71 | 63.53 | |||||||||||||
1967 | 38.19 | 43.46 | 49.94 | 55.10 | 71.71 | 78.37 | 91.52 | 94.61 | 84.80 | 62.42 | 48.80 | 32.29 | 62.60 | |||||||||||||
1968 | 33.00 | 42.79 | 57.00 | 59.83 | 69.52 | 79.63 | 92.19 | 80.87 | 76.17 | 62.10 | 45.50 | 36.16 | 61.23 | |||||||||||||
1969 | 33.03 | 37.25 | 48.90 | 63.87 | 75.16 | 79.10 | 87.87 | 89.84 | 78.73 | 59.32 | 51.57 | 39.90 | 62.05 | |||||||||||||
1970 | 36.68 | 45.18 | 50.97 | 56.07 | 69.90 | 80.43 | 89.16 | 92.58 | 71.33 | 60.00 | 47.20 | 33.77 | 61.11 | |||||||||||||
1971 | 34.45 | 41.21 | 45.90 | 61.23 | 72.55 | 74.83 | 89.45 | 93.77 | 72.47 | 61.26 | 42.73 | 32.42 | 60.19 | |||||||||||||
1972 | 32.06 | 37.79 | 53.97 | 57.60 | 74.19 | 79.40 | 86.84 | 89.94 | 72.70 | 65.90 | 46.27 | 28.55 | 60.43 | |||||||||||||
1973 | 30.48 | 40.93 | 51.81 | 62.10 | 74.71 | 79.90 | 91.23 | 87.48 | 77.33 | 62.45 | 42.27 | 36.16 | 61.40 | |||||||||||||
1974 | 29.29 | 42.75 | 49.81 | 60.57 | 68.35 | 85.63 | 85.97 | 86.58 | 82.57 | 66.68 | 49.53 | 35.94 | 61.97 | |||||||||||||
1975 | 31.68 | 37.82 | 44.71 | 53.43 | 67.97 | 75.50 | 89.87 | 81.58 | 82.00 | 61.00 | 44.00 | 33.45 | 58.58 | |||||||||||||
1976 | 33.35 | 36.48 | 43.10 | 59.83 | 74.03 | 75.30 | 87.19 | 79.90 | 79.73 | 66.65 | 54.03 | 40.84 | 60.87 | |||||||||||||
1977 | 28.40 | a | 46.57 | 50.26 | 69.70 | 64.97 | 84.20 | 87.52 | 87.68 | 73.97 | 64.00 | 44.27 | 39.26 | 61.73 | ||||||||||||
1978 | 38.00 | 42.96 | 58.84 | 59.03 | 65.90 | 79.60 | 86.68 | 83.42 | 73.60 | 69.45 | 42.93 | 27.13 | 60.63 | |||||||||||||
1979 | 20.71 | 37.74 | a | 52.32 | 60.17 | 72.32 | 81.03 | 89.58 | 87.06 | 83.60 | 67.19 | 44.90 | 37.39 | 61.17 | ||||||||||||
1980 | 35.48 | 43.66 | 51.71 | 65.67 | 70.68 | 74.37 | 86.61 | 82.87 | 76.73 | 65.84 | 47.80 | 39.06 | 61.71 | |||||||||||||
1981 | 39.19 | 46.18 | 56.45 | 62.87 | 68.35 | 75.67 | 86.06 | 91.94 | 79.34 | a | 59.94 | 50.97 | 39.13 | 63.01 | ||||||||||||
1982 | 31.55 | 33.39 | 48.45 | 58.50 | 69.65 | 79.10 | 85.00 | b | 87.71 | 74.73 | 62.26 | 43.30 | 34.61 | 59.02 | ||||||||||||
1983 | 36.32 | 43.96 | 54.61 | 59.41 | a | 72.39 | 77.43 | 82.68 | 87.61 | 74.00 | 66.16 | 46.67 | 28.65 | 60.82 | ||||||||||||
1984 | 29.30 | a | 34.21 | 46.90 | 57.67 | 66.70 | a | 73.60 | 87.48 | 88.45 | 73.40 | 58.94 | 44.40 | 26.90 | 57.33 | |||||||||||
1985 | 24.87 | 31.86 | 42.87 | 65.93 | 72.03 | 80.37 | 92.03 | 82.23 | 69.10 | 59.48 | 33.73 | 22.45 | 56.41 | |||||||||||||
1986 | 33.57 | a | 42.61 | 59.19 | 62.00 | 70.97 | 84.87 | 82.68 | 90.23 | 68.63 | 66.58 | 46.43 | 35.32 | 61.92 | ||||||||||||
1987 | 29.90 | 41.68 | 52.87 | 71.37 | 75.03 | 81.03 | 84.23 | 86.42 | 83.17 | 71.84 | 48.83 | 38.71 | 63.76 | |||||||||||||
1988 | 31.80 | a | 41.62 | 54.87 | 65.33 | 70.81 | 79.77 | 89.07 | a | 87.97 | 77.83 | a | 75.23 | 45.45 | a | 31.37 | a | 62.59 | ||||||||
1989 | 29.35 | 29.85 | a | 45.90 | 66.28 | a | 69.52 | 80.73 | 89.42 | 80.97 | 77.73 | 63.29 | 48.97 | a | 41.19 | 60.27 | ||||||||||
1990 | 39.26 | 39.19 | a | 54.48 | 68.97 | 68.94 | 79.53 | 91.65 | 86.87 | 87.23 | 62.50 | a | 47.73 | 27.83 | a | 62.85 | ||||||||||
1991 | 29.97 | 43.61 | 53.19 | 60.77 | 67.06 | 75.73 | 90.06 | 91.03 | 83.13 | 68.06 | 43.17 | 37.23 | 61.92 | |||||||||||||
1992 | 37.55 | 50.14 | 64.19 | 67.40 | 80.32 | 82.57 | 83.87 | 87.07 | a | 76.10 | a | 68.90 | b | 42.23 | 31.90 | 64.35 | ||||||||||
1993 | 30.23 | a | 33.50 | 47.03 | a | 59.33 | 75.90 | 73.62 | a | 76.29 | 81.00 | a | 77.63 | 64.90 | a | 42.90 | 35.74 | 58.17 | ||||||||
1994 | 35.27 | a | 34.93 | 54.52 | 66.28 | a | 73.45 | b | 80.57 | 92.58 | 91.80 | a | 84.07 | 63.26 | 38.41 | a | 31.60 | a | 62.23 | |||||||
1995 | 34.55 | 47.50 | 52.42 | 59.67 | 71.32 | 76.27 | 85.71 | 84.84 | 80.87 | 59.94 | 47.70 | 38.32 | 61.59 | |||||||||||||
1996 | 34.84 | 39.03 | 54.55 | 61.23 | 66.58 | 80.59 | a | 92.26 | 89.29 | 75.53 | 63.61 | 48.97 | 37.81 | 62.02 | ||||||||||||
1997 | 36.84 | 40.11 | 54.06 | 60.67 | 76.03 | a | 78.73 | 85.73 | a | 89.10 | 79.60 | 64.35 | 50.07 | 34.00 | 62.44 | |||||||||||
1998 | 36.13 | 41.57 | 52.61 | 61.30 | 68.65 | 76.57 | 93.71 | 92.35 | 82.90 | 63.97 | 47.07 | 32.97 | 62.48 | |||||||||||||
1999 | 36.23 | 37.11 | 48.48 | 60.90 | 68.71 | 78.43 | 89.06 | 89.19 | 79.67 | 67.45 | 51.67 | 31.52 | 61.53 | |||||||||||||
2000 | 34.16 | 40.69 | 52.65 | 68.53 | 71.57 | a | 82.27 | 89.77 | 90.68 | 75.97 | 62.58 | 40.80 | 34.65 | 62.03 | ||||||||||||
2001 | 30.39 | 36.64 | 53.84 | 59.50 | 75.42 | 79.53 | 88.68 | 93.52 | 83.43 | 64.10 | 51.43 | 32.84 | 62.44 | |||||||||||||
2002 | 32.48 | 34.89 | 44.68 | 62.60 | 71.32 | 82.57 | 92.71 | 85.65 | 79.80 | 64.03 | 51.00 | 39.61 | 61.78 | |||||||||||||
2003 | 36.71 | 45.11 | 55.52 | 59.93 | 71.96 | c | 83.80 | 95.84 | 91.06 | 81.33 | 69.76 | b | 43.70 | 38.45 | 64.43 | |||||||||||
2004 | 32.13 | 36.79 | 53.32 | 66.73 | 69.48 | 81.93 | a | 91.45 | 88.42 | 76.50 | 64.55 | 48.47 | 39.35 | 62.43 | ||||||||||||
2005 | 34.94 | 45.86 | 57.39 | 61.60 | 71.00 | 77.10 | 92.68 | 91.42 | 77.87 | 64.10 | 43.83 | 30.35 | 62.34 | |||||||||||||
2006 | 36.52 | 36.93 | 47.81 | 62.96 | b | 75.03 | 83.57 | 96.26 | 89.84 | 80.60 | 65.26 | 48.20 | 34.07 | a | 63.09 | |||||||||||
2007 | 31.16 | 42.07 | 58.48 | 64.86 | a | 76.03 | 84.23 | 97.67 | a | 89.87 | 80.04 | b | 62.87 | 48.13 | 35.61 | 64.25 | ||||||||||
2008 | 30.16 | 38.07 | 45.97 | 57.45 | a | 71.63 | d | 80.40 | 90.65 | 89.40 | a | 81.57 | 66.29 | 51.41 | a | 35.47 | a | 61.54 | ||||||||
2009 | 31.97 | 39.36 | 48.97 | 63.20 | 73.63 | a | 79.00 | b | 92.27 | a | 88.97 | a | 85.77 | 58.19 | 48.21 | a | 31.65 | 61.76 | ||||||||
2010 | 38.26 | 41.96 | 53.68 | 60.77 | 66.40 | a | 76.53 | 90.23 | 87.20 | a | 79.50 | ----- | z | ----- | z | ----- | z | 66.06 | c | |||||||
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 88.45 | 92.29 | 85.13 | 63.00 | 42.97 | 37.58 | 68.24 | f | ||||||
2012 | 37.32 | 39.38 | 52.48 | 66.90 | a | 71.52 | 79.87 | 93.94 | 93.61 | 84.27 | 61.45 | 47.60 | 36.52 | 63.74 | ||||||||||||
2013 | 24.71 | 39.48 | a | 53.17 | a | 64.00 | 74.65 | 81.90 | 95.26 | 92.39 | 75.53 | 60.61 | 45.43 | 29.74 | 61.41 | |||||||||||
2014 | 32.84 | 37.32 | 53.71 | 63.70 | 73.42 | 78.63 | 94.29 | 88.13 | 80.33 | 66.42 | 40.67 | 38.19 | 62.30 | |||||||||||||
2015 | 31.00 | 48.86 | 60.71 | 65.63 | 73.32 | 88.43 | 88.90 | 89.84 | 79.57 | 69.90 | 39.87 | 31.48 | 63.96 | |||||||||||||
2016 | 32.29 | 40.90 | 53.48 | 70.17 | 73.29 | 84.10 | 88.13 | 89.35 | 76.10 | 60.23 | 51.50 | 24.00 | 61.96 | |||||||||||||
2017 | 21.48 | 38.07 | 50.61 | 59.33 | 73.77 | 80.43 | 95.19 | 92.03 | 77.13 | 59.16 | 46.07 | 32.35 | 60.47 | |||||||||||||
2018 | 36.68 | 38.50 | 51.58 | 62.70 | 75.39 | 79.67 | 93.13 | a | 89.81 | 78.93 | 60.81 | 45.67 | 32.29 | 62.10 | ||||||||||||
2019 | 31.97 | 33.93 | 47.45 | 61.67 | 71.71 | 79.96 | b | 87.77 | 89.45 | 74.73 | 54.29 | 48.53 | 34.39 | 59.65 | ||||||||||||
2020 | 34.90 | 39.55 | 53.87 | 64.93 | 71.32 | 76.43 | 88.48 | 89.06 | 79.80 | 64.06 | 43.30 | 34.68 | 61.70 | |||||||||||||
2021 | 33.23 | 35.82 | 49.74 | 67.60 | 71.61 | 88.73 | 95.77 | 88.23 | 79.30 | 61.45 | 48.10 | 34.90 | 62.87 | |||||||||||||
2022 | 28.87 | 32.04 | 52.94 | 56.63 | 65.10 | 76.97 | 93.42 | 93.03 | 81.60 | 66.52 | 35.97 | 30.74 | 59.48 | |||||||||||||
2023 | 32.87 | 37.82 | 43.84 | 58.73 | 75.06 | 78.53 | 92.94 | 86.97 | 76.47 | 63.55 | 46.97 | 37.48 | 60.94 | |||||||||||||
2024 | 33.39 | 45.66 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 39.52 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 33.04 | 40.07 | 51.16 | 62.27 | 71.55 | 79.28 | 89.47 | 88.26 | 78.67 | 64.16 | 46.30 | 35.28 | 61.63 | |||||||||||||
S.D. | 4.23 | 4.46 | 4.23 | 3.87 | 3.42 | 3.50 | 3.44 | 3.34 | 4.25 | 3.89 | 4.03 | 3.98 | 1.53 | |||||||||||||
SKEW | -0.97 | 0.22 | 0.27 | 0.06 | 0.04 | 0.46 | -0.44 | -0.46 | -0.52 | 0.27 | -0.50 | -0.76 | -0.91 | |||||||||||||
MAX | 39.71 | 52.14 | 64.19 | 71.37 | 80.32 | 88.73 | 97.67 | 94.61 | 87.23 | 75.23 | 55.86 | 41.65 | 64.43 | |||||||||||||
MIN | 19.52 | 29.85 | 42.87 | 53.43 | 64.90 | 73.13 | 76.29 | 79.90 | 65.83 | 54.29 | 33.73 | 22.45 | 56.41 | |||||||||||||
YRS | 84 | 85 | 83 | 86 | 85 | 83 | 85 | 87 | 88 | 85 | 84 | 86 | 71 |