YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | 31.00 | 31.72 | 34.61 | 52.30 | 66.39 | 74.33 | 83.97 | 83.10 | 75.87 | 59.74 | 33.03 | 25.67 | a | 54.31 | ||||||||||||
1949 | 14.52 | 27.68 | 41.35 | 58.43 | 63.03 | 71.53 | 82.45 | 82.03 | 72.27 | 48.45 | 52.77 | 30.97 | 53.79 | |||||||||||||
1950 | 26.97 | 32.39 | 37.48 | 52.23 | 58.26 | 74.47 | 79.00 | 80.16 | 66.93 | 64.23 | 43.40 | 36.94 | 54.37 | |||||||||||||
1951 | 27.26 | 36.39 | 37.77 | 51.50 | 62.94 | 67.20 | 83.00 | 78.29 | 71.57 | 52.87 | 38.53 | 27.90 | 52.94 | |||||||||||||
1952 | 26.00 | 29.24 | 31.84 | 54.17 | 63.84 | 76.03 | 81.81 | 80.84 | 75.73 | 65.48 | 35.57 | 30.16 | 54.23 | |||||||||||||
1953 | 38.13 | 34.36 | 45.71 | 49.07 | 57.10 | 77.00 | 85.77 | 80.32 | 75.27 | 58.74 | 45.80 | 32.26 | 56.63 | |||||||||||||
1954 | 36.55 | 43.32 | 38.90 | 58.10 | 67.35 | 74.47 | 85.90 | 81.29 | 73.63 | 59.55 | 48.17 | 31.45 | 58.22 | |||||||||||||
1955 | 26.58 | 28.86 | 35.55 | 50.73 | 64.77 | 71.57 | 84.39 | 82.77 | 72.50 | 60.81 | 37.30 | 34.42 | 54.19 | |||||||||||||
1956 | 33.35 | 28.00 | 43.23 | 54.03 | 67.39 | 79.60 | 81.94 | 79.77 | 75.70 | 58.90 | 38.73 | 35.03 | 56.31 | |||||||||||||
1957 | 23.94 | 40.54 | 43.81 | 48.30 | 58.84 | 71.70 | 81.97 | 80.58 | 71.10 | a | 55.61 | 31.73 | 34.10 | 53.52 | ||||||||||||
1958 | 26.06 | 38.46 | 36.61 | 48.07 | 69.74 | 77.43 | 80.58 | 83.45 | 72.03 | 60.87 | 42.40 | 37.68 | 56.12 | |||||||||||||
1959 | 31.00 | 30.93 | 38.65 | 52.30 | 57.74 | 76.73 | 83.19 | 78.68 | 64.37 | 54.58 | 43.93 | a | 36.42 | 54.04 | ||||||||||||
1960 | 25.00 | 23.03 | 39.97 | 55.17 | 63.58 | 76.10 | 83.84 | 80.39 | 72.70 | 55.71 | 36.87 | 27.48 | 53.32 | |||||||||||||
1961 | 33.03 | 34.18 | 40.45 | 50.40 | 64.06 | 78.17 | 80.97 | 78.19 | 58.40 | 50.52 | 33.13 | 24.26 | 52.15 | |||||||||||||
1962 | 22.16 | 31.57 | 32.13 | 54.63 | 60.00 | 70.13 | 78.00 | 77.81 | 70.47 | 60.29 | 45.70 | 36.26 | 53.26 | |||||||||||||
1963 | 25.06 | 39.36 | 40.26 | 45.73 | 64.61 | 70.60 | 81.26 | 78.06 | 71.40 | 61.55 | 42.20 | 31.68 | 54.31 | |||||||||||||
1964 | 27.06 | 25.55 | 31.61 | 45.20 | 60.29 | 67.07 | 84.19 | 76.58 | 68.60 | 59.42 | 36.13 | 27.94 | 50.80 | |||||||||||||
1965 | 29.00 | 32.11 | 33.94 | 49.93 | 56.94 | 66.90 | 77.81 | 75.52 | 58.90 | a | 61.29 | 44.53 | 31.10 | 51.50 | ||||||||||||
1966 | 25.23 | 27.25 | 42.87 | 52.27 | 69.74 | 75.10 | 87.13 | 81.45 | 73.53 | 55.55 | 46.30 | 32.00 | 55.70 | |||||||||||||
1967 | 34.97 | 37.50 | 45.52 | 52.33 | 60.52 | 69.30 | 85.39 | 85.19 | 73.83 | 60.74 | 43.20 | 24.26 | 56.06 | |||||||||||||
1968 | 30.48 | 36.41 | 46.16 | 47.60 | 61.77 | 75.00 | 85.52 | 75.90 | 70.13 | 60.42 | 40.90 | 31.03 | 55.11 | |||||||||||||
1969 | 36.74 | 32.50 | 35.55 | 56.17 | 72.42 | 68.77 | 85.19 | 86.52 | 76.50 | 46.39 | 45.50 | 36.06 | 56.53 | |||||||||||||
1970 | 32.68 | 43.61 | 39.32 | 46.87 | 66.16 | 74.57 | 84.19 | 87.16 | 68.07 | 51.45 | 41.80 | 30.61 | 55.54 | |||||||||||||
1971 | 33.58 | 36.39 | 42.29 | 55.30 | 62.94 | 77.10 | 84.52 | 87.35 | 67.47 | 53.26 | 34.87 | 24.77 | 54.99 | |||||||||||||
1972 | 27.58 | 33.86 | 50.00 | 54.83 | 66.71 | 76.40 | 83.06 | 82.26 | 70.23 | 54.94 | 37.80 | 27.13 | 55.40 | |||||||||||||
1973 | 22.87 | 29.11 | 38.65 | 46.80 | 66.39 | 76.17 | 80.94 | 83.61 | 67.93 | 61.26 | 41.03 | 34.97 | 54.14 | |||||||||||||
1974 | 27.52 | 33.61 | 46.13 | 52.77 | 67.81 | 80.87 | 85.19 | 82.52 | 73.07 | 62.03 | 45.30 | 32.35 | 57.43 | |||||||||||||
1975 | 31.61 | 36.32 | 42.71 | 46.97 | 60.13 | 70.20 | 84.32 | 80.68 | 72.67 | 58.45 | 42.80 | 35.94 | 55.23 | |||||||||||||
1976 | 33.35 | 38.00 | 42.26 | 54.30 | 67.03 | 73.83 | 86.58 | 80.06 | 73.23 | 58.77 | 47.00 | 39.45 | 57.82 | |||||||||||||
1977 | 33.77 | 44.21 | 39.52 | 60.27 | 63.84 | 84.47 | 83.81 | 79.39 | 72.03 | 61.74 | 43.33 | 36.35 | 58.56 | |||||||||||||
1978 | 33.03 | 38.32 | 48.97 | 52.93 | 59.29 | 74.47 | 83.94 | 77.81 | 69.60 | 60.90 | 33.93 | 21.45 | 54.55 | |||||||||||||
1979 | 15.81 | 34.00 | a | 40.94 | 53.67 | 61.71 | 74.67 | 83.58 | 77.00 | 75.77 | 59.06 | 33.37 | 33.16 | 53.56 | ||||||||||||
1980 | 25.10 | 33.31 | 36.84 | 51.80 | 59.84 | 76.33 | 82.94 | 78.00 | 71.77 | 57.16 | 43.03 | 41.84 | 54.83 | |||||||||||||
1981 | 39.23 | 40.07 | a | 45.26 | 58.37 | 60.23 | 75.97 | 82.03 | 79.90 | 71.83 | 50.39 | 43.63 | 36.00 | 56.91 | ||||||||||||
1982 | 28.77 | 32.39 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.58 | j | ||
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.56 | n | ----- | z | 36.97 | 22.81 | 29.89 | j | ||
1984 | 24.97 | 28.62 | 37.42 | 46.70 | 66.10 | 71.80 | 82.39 | 80.68 | 67.30 | 49.16 | 40.20 | 24.10 | 51.62 | |||||||||||||
1985 | 21.61 | 28.00 | 44.39 | 59.60 | 69.32 | 76.83 | 84.29 | 81.65 | 64.37 | 55.42 | 32.90 | 28.48 | 53.91 | |||||||||||||
1986 | 33.16 | 35.32 | 50.84 | 51.67 | 62.71 | 79.03 | 78.87 | ----- | z | 64.53 | 55.16 | 41.63 | 33.45 | 53.31 | a | |||||||||||
1987 | 27.81 | 37.54 | 41.00 | 62.43 | 66.00 | 77.47 | 79.61 | 78.74 | 73.23 | 62.19 | 40.37 | 29.45 | 56.32 | |||||||||||||
1988 | 26.84 | 37.41 | 39.87 | 58.97 | 64.74 | 83.10 | 87.71 | 83.16 | 70.00 | 65.84 | 39.27 | 28.61 | 57.13 | |||||||||||||
1989 | 31.19 | 21.86 | 47.03 | 58.90 | 65.84 | 73.23 | 86.71 | 79.42 | 71.50 | 57.52 | 44.87 | 33.58 | 55.97 | |||||||||||||
1990 | 35.16 | 34.11 | 46.97 | 58.27 | 62.84 | 77.57 | 83.26 | 82.29 | 76.07 | 57.39 | 42.93 | 24.19 | 56.75 | |||||||||||||
1991 | 28.06 | 41.93 | 44.13 | 49.70 | 61.71 | 74.23 | 83.06 | 81.42 | 69.73 | 56.55 | 34.17 | 24.61 | 54.11 | |||||||||||||
1992 | 24.65 | 35.55 | 46.35 | 60.30 | 66.06 | 72.83 | 78.10 | 80.81 | 70.40 | 60.06 | 33.37 | 24.97 | 54.45 | |||||||||||||
1993 | 21.55 | 19.96 | 41.00 | 49.43 | 64.45 | 66.93 | 75.00 | 75.61 | 68.20 | 52.90 | 34.70 | 30.68 | 50.04 | |||||||||||||
1994 | 34.00 | 29.58 | b | 46.90 | 53.73 | 69.52 | 78.77 | 83.84 | 82.90 | 72.10 | 52.32 | 33.20 | 32.35 | 55.77 | ||||||||||||
1995 | 27.65 | 38.82 | 42.65 | 49.23 | 52.84 | 67.53 | 78.87 | 82.42 | 69.30 | 54.29 | 45.70 | 35.87 | 53.76 | |||||||||||||
1996 | 30.32 | 35.45 | 41.63 | a | 53.40 | 60.61 | 76.97 | 83.71 | 81.94 | 66.10 | 52.23 | 40.76 | a | 29.90 | 54.42 | |||||||||||
1997 | 27.26 | 28.71 | 44.45 | 45.40 | 65.42 | 74.37 | 79.84 | 78.16 | 67.77 | 55.13 | 39.23 | 23.81 | 52.46 | |||||||||||||
1998 | 31.77 | 31.14 | 37.19 | 50.07 | 62.32 | 64.70 | 82.87 | 80.71 | 72.87 | 54.39 | 43.00 | 31.23 | 53.52 | |||||||||||||
1999 | 34.29 | 34.89 | 47.52 | 45.80 | 58.58 | 71.70 | 81.94 | 79.68 | 66.23 | 62.39 | 51.20 | 33.42 | 55.64 | |||||||||||||
2000 | 32.94 | 38.59 | 43.48 | 57.90 | 66.94 | 76.90 | 85.52 | 83.19 | 65.93 | 54.68 | 29.57 | 29.97 | 55.47 | |||||||||||||
2001 | 28.37 | a | 29.50 | 43.35 | 52.93 | 68.06 | 78.17 | 86.42 | 84.71 | 75.63 | 59.74 | 43.57 | 26.97 | 56.45 | ||||||||||||
2002 | 29.03 | 35.21 | 38.87 | 56.90 | 65.68 | 80.00 | 88.65 | 81.68 | 70.60 | 51.42 | 39.03 | 34.45 | 55.96 | |||||||||||||
2003 | 38.68 | 32.79 | 44.68 | 55.97 | 66.32 | 72.83 | 90.00 | 84.97 | 71.20 | 64.10 | 32.83 | 30.58 | 57.08 | |||||||||||||
2004 | 24.10 | 25.34 | 48.06 | 55.33 | 65.35 | 73.63 | 83.03 | 77.94 | 69.10 | 54.84 | 38.23 | 36.16 | 54.26 | |||||||||||||
2005 | 34.97 | 33.61 | 42.00 | 54.17 | 62.45 | 71.83 | 87.00 | 80.26 | 70.67 | 58.55 | 43.30 | 29.42 | 55.68 | |||||||||||||
2006 | 33.61 | 30.86 | 41.32 | 57.63 | 67.58 | 80.83 | 87.52 | 80.97 | 66.97 | 52.45 | 41.40 | 30.35 | 55.96 | |||||||||||||
2007 | 22.26 | 35.54 | 49.35 | 56.40 | 65.81 | 80.47 | 89.61 | 83.52 | 70.67 | 61.40 | a | 47.13 | 25.58 | 57.31 | ||||||||||||
2008 | 22.13 | 29.69 | 36.52 | 49.90 | 61.00 | 73.60 | 86.97 | 82.52 | 69.10 | 56.71 | 46.33 | 31.52 | 53.83 | |||||||||||||
2009 | 34.65 | 37.11 | 44.00 | 50.40 | 65.00 | 70.37 | 82.81 | 80.29 | 75.03 | 48.03 | 45.70 | 23.71 | 54.76 | |||||||||||||
2010 | 31.39 | 32.14 | 45.39 | 50.90 | 57.03 | 73.97 | 83.94 | 81.23 | 76.37 | 60.87 | 39.23 | 31.23 | 55.31 | |||||||||||||
2011 | 28.90 | j | 30.07 | 41.45 | 49.00 | 57.48 | 73.87 | 83.90 | 86.10 | 75.40 | 59.48 | b | 37.23 | 30.87 | 56.81 | a | ||||||||||
2012 | 37.35 | 34.45 | 53.00 | 60.00 | 68.94 | 82.97 | 87.00 | 86.19 | 75.30 | 57.29 | 47.43 | 28.87 | 59.90 | |||||||||||||
2013 | 27.60 | a | 34.25 | 46.42 | 49.80 | 66.10 | 82.10 | 87.35 | 84.00 | 69.93 | 52.48 | 43.17 | 26.29 | c | 55.79 | |||||||||||
2014 | 35.19 | 36.18 | 47.58 | 55.97 | 67.10 | 75.17 | 86.42 | 77.32 | 73.17 | 61.29 | 40.47 | 32.74 | 57.38 | |||||||||||||
2015 | 37.03 | 42.00 | 52.10 | 54.47 | 58.87 | 80.47 | 80.00 | 81.29 | 76.07 | 62.65 | 38.30 | 27.61 | 57.57 | |||||||||||||
2016 | 26.48 | 38.21 | 45.00 | 53.33 | 60.68 | 81.47 | 85.65 | 81.52 | 70.37 | 59.39 | 46.90 | 28.81 | 56.48 | |||||||||||||
2017 | 22.55 | 35.46 | 49.06 | 53.47 | 64.03 | 79.03 | 87.55 | 82.03 | 67.77 | 55.48 | 46.67 | 38.06 | 56.76 | |||||||||||||
2018 | 36.45 | 34.96 | 45.81 | 56.23 | 67.94 | 79.03 | 87.61 | 82.68 | 77.57 | 52.94 | 38.67 | 26.71 | 57.22 | |||||||||||||
2019 | 26.19 | 26.14 | 35.81 | 52.93 | 57.65 | 72.70 | 85.29 | 84.23 | 71.93 | 49.26 | 43.33 | 26.23 | 52.64 | |||||||||||||
2020 | 29.77 | 30.52 | 43.97 | 53.90 | 66.87 | 74.30 | 86.45 | 87.81 | 72.57 | 58.19 | 43.40 | 32.19 | 56.66 | |||||||||||||
2021 | 33.13 | a | 29.96 | 43.32 | 53.40 | 65.71 | 83.53 | 89.52 | 81.90 | 74.43 | 55.03 | 48.07 | 36.16 | 57.85 | ||||||||||||
2022 | 34.55 | 34.36 | 44.90 | 52.47 | 61.27 | a | 77.20 | 87.84 | 84.65 | 77.37 | 59.00 | 34.50 | 28.04 | e | 56.34 | |||||||||||
2023 | 23.81 | 26.11 | 32.35 | 47.40 | 67.42 | 71.83 | 86.52 | 82.00 | 73.20 | 58.65 | 43.97 | 34.58 | 53.99 | |||||||||||||
2024 | 31.26 | 35.24 | 42.03 | 55.53 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.18 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.45 | 33.44 | 42.21 | 52.95 | 63.70 | 75.10 | 83.93 | 81.30 | 71.10 | 57.13 | 40.89 | 30.77 | 55.18 | |||||||||||||
S.D. | 5.24 | 5.01 | 4.89 | 4.11 | 3.87 | 4.34 | 3.07 | 2.81 | 3.87 | 4.37 | 5.02 | 4.45 | 1.87 | |||||||||||||
SKEW | -0.35 | -0.21 | -0.19 | 0.07 | -0.34 | -0.10 | -0.41 | 0.15 | -0.85 | -0.34 | -0.16 | 0.03 | -0.27 | |||||||||||||
MAX | 39.23 | 44.21 | 53.00 | 62.43 | 72.42 | 84.47 | 90.00 | 87.81 | 77.57 | 65.84 | 52.77 | 41.84 | 59.90 | |||||||||||||
MIN | 14.52 | 19.96 | 31.61 | 45.20 | 52.84 | 64.70 | 75.00 | 75.52 | 58.40 | 46.39 | 29.57 | 21.45 | 50.04 | |||||||||||||
YRS | 75 | 76 | 75 | 74 | 74 | 74 | 74 | 73 | 74 | 74 | 75 | 75 | 72 |