YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.80 | t | 63.65 | 42.03 | 40.26 | 48.65 | i | |||
1961 | 44.13 | 41.86 | 43.39 | 53.93 | 57.61 | 76.50 | 81.23 | 81.19 | 66.43 | 59.74 | 44.87 | 36.58 | 57.29 | |||||||||||||
1962 | 38.48 | 42.25 | 42.77 | 57.43 | 54.16 | 70.43 | 78.19 | 74.94 | 74.60 | ----- | z | 47.03 | 42.94 | 56.66 | a | |||||||||||
1963 | 40.81 | 48.25 | 44.55 | 44.57 | 61.52 | 65.40 | 72.19 | 75.48 | 74.57 | 58.39 | 42.63 | 41.00 | 55.78 | |||||||||||||
1964 | 35.55 | 44.76 | 43.06 | 50.76 | a | 56.71 | 64.07 | 76.90 | 76.84 | 69.47 | 66.39 | 41.90 | 35.52 | 55.16 | ||||||||||||
1965 | 37.37 | a | 44.54 | 49.39 | 51.07 | 57.81 | 66.80 | 78.48 | 74.10 | 69.03 | 66.87 | 44.83 | 35.90 | 56.35 | ||||||||||||
1966 | 36.23 | 40.57 | 47.13 | 58.60 | 66.81 | 66.87 | 74.39 | 79.84 | 72.67 | 62.16 | 45.40 | 38.13 | 57.40 | |||||||||||||
1967 | 38.48 | 47.04 | 43.71 | 42.40 | 62.84 | 69.53 | 81.58 | 84.90 | 78.70 | 59.94 | 50.23 | 33.35 | 57.73 | |||||||||||||
1968 | 38.10 | 46.96 | a | 50.06 | 53.10 | 59.74 | 70.67 | 82.71 | 72.00 | 73.37 | 59.55 | 42.43 | 32.77 | 56.79 | ||||||||||||
1969 | 32.94 | 36.71 | 46.26 | 51.23 | 67.06 | 68.77 | 77.84 | 78.35 | 73.43 | 53.52 | 51.13 | 39.45 | 56.39 | |||||||||||||
1970 | 37.55 | 47.00 | 46.74 | 46.83 | 62.55 | 73.17 | 82.06 | 82.35 | 68.60 | 59.65 | 44.27 | 32.90 | 56.97 | |||||||||||||
1971 | 37.65 | 42.50 | 42.13 | 48.63 | 57.71 | 65.33 | 80.35 | 82.87 | 68.80 | 55.10 | 43.20 | 32.26 | 54.71 | |||||||||||||
1972 | 34.81 | 42.28 | 50.84 | 49.53 | 64.81 | 72.23 | 81.87 | 79.77 | 67.00 | 59.90 | 41.40 | 31.61 | 56.34 | |||||||||||||
1973 | 36.29 | 43.75 | 43.45 | 54.27 | 67.13 | 71.90 | 80.94 | 79.13 | 71.93 | 58.00 | 38.83 | 37.42 | 56.92 | |||||||||||||
1974 | 33.52 | 40.46 | 44.71 | 48.23 | 60.10 | 75.13 | 76.45 | 79.19 | 80.10 | 63.42 | 45.73 | 36.52 | 56.96 | |||||||||||||
1975 | 36.71 | 37.61 | 40.74 | 43.63 | 60.26 | 67.77 | 77.42 | 74.23 | 77.93 | 53.35 | 41.03 | 38.29 | 54.08 | |||||||||||||
1976 | 39.61 | 41.28 | 44.06 | 47.50 | 64.77 | 66.43 | 77.26 | 69.61 | 71.93 | 65.13 | 52.17 | 43.19 | 56.91 | |||||||||||||
1977 | 38.39 | 49.11 | 41.77 | 58.53 | 51.81 | 74.07 | 77.45 | 80.74 | 67.97 | 60.52 | 42.00 | 37.87 | 56.69 | |||||||||||||
1978 | 41.10 | 45.29 | 53.35 | 49.47 | 58.81 | 69.70 | 78.58 | 76.26 | 64.10 | 68.29 | 43.63 | 33.16 | 56.81 | |||||||||||||
1979 | 34.84 | 38.43 | 49.52 | 51.37 | 64.45 | 72.00 | 79.61 | 74.71 | 75.73 | 61.74 | 42.93 | 39.94 | 57.11 | |||||||||||||
1980 | 38.23 | 44.14 | 43.97 | 54.23 | 59.58 | ----- | z | 80.13 | 76.74 | 72.70 | 63.55 | 46.87 | 41.81 | 56.54 | a | |||||||||||
1981 | 42.97 | 43.61 | 47.35 | 54.47 | 60.45 | 70.53 | 78.90 | 83.94 | 74.30 | 56.03 | 45.93 | 38.00 | 58.04 | |||||||||||||
1982 | 33.52 | 40.04 | 42.81 | 49.63 | 63.90 | 69.10 | 76.35 | 78.87 | 67.47 | 56.16 | 40.63 | 33.42 | 54.33 | |||||||||||||
1983 | 37.68 | 38.54 | 42.45 | 46.80 | 62.87 | 65.47 | 71.19 | 77.10 | 69.43 | 60.90 | 38.31 | a | 33.29 | 53.67 | ||||||||||||
1984 | 38.58 | 40.48 | 47.71 | 47.67 | 60.45 | 66.83 | 81.13 | 79.19 | 70.03 | 50.13 | 36.97 | 32.29 | 54.29 | |||||||||||||
1985 | 38.35 | 39.32 | 43.65 | 57.67 | 61.84 | 73.83 | 83.19 | 75.87 | 64.67 | 58.48 | 36.50 | 37.84 | 55.93 | |||||||||||||
1986 | 41.16 | 42.56 | a | 53.00 | 53.70 | 63.07 | a | 76.33 | 75.90 | 84.74 | 64.03 | 62.13 | 46.07 | 37.13 | 58.32 | |||||||||||
1987 | 34.39 | 41.39 | 44.55 | 63.30 | 65.68 | 74.63 | 73.32 | 81.16 | 76.57 | 71.19 | 44.87 | 33.55 | 58.72 | |||||||||||||
1988 | 35.36 | f | 47.59 | 49.10 | 56.90 | 59.23 | 68.50 | d | 84.11 | c | 82.79 | b | 75.60 | 72.29 | 39.59 | a | 36.53 | a | 61.11 | a | ||||||
1989 | 33.94 | 35.21 | 42.83 | b | 58.50 | 59.52 | 72.93 | c | 77.60 | f | 74.77 | a | 71.48 | a | 57.87 | 47.07 | 42.11 | c | 54.20 | a | ||||||
1990 | 36.97 | b | 39.44 | a | 50.06 | 61.45 | a | 58.68 | 70.15 | c | 81.70 | a | 78.77 | a | 77.15 | d | 60.17 | b | 41.87 | 30.21 | b | 57.22 | ||||
1991 | 39.63 | a | 48.73 | b | 41.45 | 48.30 | 55.21 | b | 65.38 | d | 81.00 | c | 79.87 | a | 82.25 | f | 66.13 | a | 44.26 | c | 36.63 | d | 55.15 | a | ||
1992 | 38.64 | c | 46.14 | a | 52.14 | c | 57.90 | 72.30 | a | 73.69 | d | 77.97 | b | 83.27 | e | 75.33 | c | 64.18 | c | 42.36 | b | 32.86 | j | 62.17 | a | |
1993 | 32.45 | 37.08 | b | 48.16 | 48.53 | 62.50 | a | 66.11 | c | 72.57 | c | 78.25 | c | 75.79 | b | 61.50 | c | 42.81 | c | 35.46 | c | 55.10 | ||||
1994 | 38.93 | b | 38.35 | b | 53.62 | b | 56.56 | e | 64.57 | c | 70.93 | c | 85.14 | c | 80.79 | b | 76.22 | c | 59.27 | a | 33.85 | c | 34.44 | d | 57.72 | |
1995 | 37.00 | c | 48.79 | 43.87 | a | 49.55 | a | 60.53 | a | 66.10 | a | 76.14 | b | 77.29 | c | 76.57 | b | 61.81 | d | 49.57 | b | 38.44 | d | 57.14 | ||
1996 | 36.03 | a | 41.24 | 48.17 | a | 55.37 | c | 59.59 | b | 71.07 | a | 84.23 | a | 83.79 | b | 70.39 | b | 58.67 | a | 44.28 | a | 35.29 | 57.34 | |||
1997 | 36.50 | a | 40.62 | b | 49.39 | 51.24 | a | 68.17 | a | 66.93 | 76.56 | d | 79.72 | b | 71.75 | b | 56.79 | c | 43.76 | a | 34.17 | a | 56.30 | |||
1998 | 36.77 | a | 36.32 | 45.13 | 51.50 | b | 50.45 | 68.43 | b | 82.21 | b | 83.25 | c | 76.85 | c | 57.86 | b | 38.34 | a | 32.48 | b | 54.97 | ||||
1999 | 36.58 | 35.62 | b | 42.35 | 49.32 | b | 60.07 | c | 68.52 | a | 79.00 | 76.46 | c | 76.23 | 66.11 | c | 46.70 | 37.23 | a | 56.18 | ||||||
2000 | 35.42 | 40.46 | a | 44.45 | 57.33 | 60.94 | 74.23 | 77.33 | d | 81.57 | c | 71.96 | b | 56.48 | b | 39.24 | a | 38.57 | a | 56.50 | ||||||
2001 | 36.97 | a | 38.31 | b | 48.03 | 49.10 | 71.47 | a | 69.59 | c | 79.90 | b | 82.97 | 75.62 | a | 63.81 | 43.87 | 34.32 | c | 57.83 | ||||||
2002 | 34.82 | c | 42.57 | 44.50 | a | 55.43 | 60.90 | 73.57 | 85.43 | c | 79.97 | 77.00 | e | 61.36 | c | 47.43 | 38.21 | b | 58.43 | |||||||
2003 | 40.74 | 40.39 | 46.41 | b | 46.07 | 61.73 | a | 75.67 | i | 86.00 | c | 80.79 | b | 76.62 | a | 65.46 | c | 38.90 | 36.65 | 56.34 | a | |||||
2004 | 36.74 | 39.17 | 52.71 | c | 57.00 | b | 60.69 | b | 72.50 | b | 81.84 | f | 79.33 | j | 69.53 | 56.73 | a | 45.13 | 38.90 | 52.91 | b | |||||
2005 | 37.82 | c | 44.82 | 49.65 | 51.10 | 61.07 | d | 66.83 | 82.21 | c | 83.94 | 74.93 | 62.07 | c | 45.40 | 38.45 | 58.19 | |||||||||
2006 | 36.90 | 42.29 | 38.90 | 51.53 | 65.61 | 72.50 | 84.13 | 79.65 | 72.03 | 59.06 | 41.07 | 36.71 | c | 56.70 | ||||||||||||
2007 | 37.03 | 42.75 | 51.52 | 53.87 | 66.35 | 72.13 | 81.68 | 79.81 | 70.41 | a | 53.13 | 46.53 | 33.65 | 57.40 | ||||||||||||
2008 | 33.97 | 41.55 | 45.23 | 48.97 | 61.10 | 68.83 | 82.10 | 81.26 | 75.83 | 59.13 | 46.27 | 36.32 | 56.71 | |||||||||||||
2009 | 41.06 | 41.25 | 42.67 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.16 | j | ||
2010 | ----- | z | 41.79 | i | 45.45 | 45.07 | a | 52.03 | 63.83 | 79.19 | 76.39 | 69.43 | 60.03 | 41.00 | a | 35.43 | a | 56.79 | b | |||||||
2011 | 38.32 | 37.21 | 39.61 | 43.57 | 51.90 | 62.50 | 72.29 | 78.35 | 75.53 | 56.19 | 38.87 | 40.23 | 52.88 | |||||||||||||
2012 | 38.29 | 38.72 | 39.71 | 50.83 | a | 59.97 | 63.97 | 75.84 | 81.77 | 77.03 | 59.10 | 43.80 | 32.74 | 55.15 | ||||||||||||
2013 | 34.00 | 39.50 | 46.90 | 51.30 | 60.10 | 68.53 | 83.16 | 76.65 | 67.40 | 55.03 | 45.80 | 36.35 | 55.39 | |||||||||||||
2014 | 43.74 | 40.86 | 48.13 | 53.47 | 62.16 | 67.83 | 83.03 | 78.48 | 73.37 | 59.71 | 44.90 | 38.84 | 57.88 | |||||||||||||
2015 | 44.10 | a | 48.15 | a | 53.74 | 53.10 | 60.71 | 76.57 | b | 77.78 | d | 78.90 | 70.73 | 63.39 | 40.13 | 33.03 | 58.36 | |||||||||
2016 | 34.48 | 43.34 | 43.87 | 57.40 | 60.68 | 71.40 | 75.77 | 80.84 | 68.47 | 51.00 | 44.87 | 32.29 | 55.37 | |||||||||||||
2017 | 31.61 | 38.61 | 44.39 | 48.23 | 63.03 | a | 70.17 | 82.26 | 82.55 | 69.90 | 55.68 | 41.20 | 38.97 | a | 55.55 | |||||||||||
2018 | 40.35 | 38.93 | 42.13 | 51.67 | 62.97 | 69.31 | a | 81.90 | a | 79.68 | 71.00 | 57.48 | 46.79 | a | 34.94 | 56.43 | ||||||||||
2019 | 39.19 | 32.11 | 42.23 | 52.40 | 59.71 | 70.77 | 76.68 | 79.42 | 65.97 | 52.10 | 48.83 | 36.45 | 54.65 | |||||||||||||
2020 | 35.39 | 43.14 | 43.55 | 54.07 | 61.74 | 67.20 | 78.68 | 80.71 | 77.07 | 63.65 | 42.27 | 37.13 | 57.05 | |||||||||||||
2021 | 36.65 | 36.25 | 43.58 | 57.20 | 62.00 | 76.07 | 84.19 | 80.65 | 72.63 | 52.86 | b | 46.37 | 35.97 | 57.03 | ||||||||||||
2022 | 41.16 | 42.79 | 48.39 | 46.17 | 53.93 | a | 68.13 | 83.10 | 83.10 | 74.77 | 64.61 | 39.13 | 32.90 | 56.51 | ||||||||||||
2023 | 35.00 | a | 38.43 | 35.19 | 48.60 | 63.32 | 69.27 | 82.77 | 79.48 | 66.30 | 56.90 | 45.53 | 40.35 | 55.10 | ||||||||||||
2024 | 37.45 | 39.72 | 42.87 | 49.17 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.02 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.45 | 41.54 | 45.72 | 51.89 | 61.12 | 69.80 | 79.53 | 79.35 | 72.34 | 60.02 | 43.52 | 36.40 | 56.43 | |||||||||||||
S.D. | 2.81 | 3.75 | 3.97 | 4.59 | 4.31 | 3.48 | 3.57 | 3.19 | 3.97 | 4.64 | 3.61 | 3.01 | 1.32 | |||||||||||||
SKEW | 0.39 | 0.18 | 0.17 | 0.16 | -0.14 | 0.11 | -0.36 | -0.57 | -0.27 | 0.24 | -0.11 | 0.21 | -0.55 | |||||||||||||
MAX | 44.13 | 49.11 | 53.74 | 63.30 | 72.30 | 76.57 | 86.00 | 84.90 | 80.10 | 72.29 | 52.17 | 43.19 | 58.72 | |||||||||||||
MIN | 31.61 | 32.11 | 35.19 | 42.40 | 50.45 | 62.50 | 71.19 | 69.61 | 64.03 | 50.13 | 33.85 | 30.21 | 52.88 | |||||||||||||
YRS | 62 | 63 | 63 | 62 | 62 | 60 | 60 | 61 | 61 | 62 | 63 | 62 | 53 |