YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1977 | ----- | z | ----- | z | ----- | z | ----- | z | 66.15 | e | 84.40 | 83.90 | 81.61 | 75.23 | 62.13 | 46.53 | 39.29 | 67.41 | d | |||||||
1978 | 33.23 | 36.00 | b | 44.21 | b | 56.52 | a | 62.52 | 77.80 | 85.03 | 82.25 | c | 73.43 | 63.47 | a | 43.87 | 25.48 | 56.98 | ||||||||
1979 | 21.45 | 33.11 | 40.19 | 55.10 | 63.48 | 76.60 | 85.87 | 81.13 | 80.43 | 63.39 | 36.57 | 32.61 | 55.83 | |||||||||||||
1980 | 31.84 | 36.00 | 40.52 | 54.07 | 62.87 | 80.30 | 87.16 | 82.71 | 74.24 | a | 60.03 | 48.33 | 44.58 | 58.55 | ||||||||||||
1981 | 44.35 | 41.22 | a | 46.42 | 61.13 | 62.19 | 79.43 | 84.19 | 83.43 | a | 77.40 | 55.84 | 48.50 | 38.16 | 60.19 | |||||||||||
1982 | 31.65 | 34.19 | a | 45.30 | a | 51.97 | 63.00 | 75.00 | 83.45 | 83.90 | 70.30 | 53.97 | 39.69 | a | 32.30 | a | 55.39 | |||||||||
1983 | 35.03 | a | 36.68 | 42.42 | 48.43 | 60.42 | 72.13 | 82.42 | 85.06 | 77.07 | 60.84 | 42.33 | 27.65 | 55.87 | ||||||||||||
1984 | 22.23 | 28.21 | 37.16 | 48.07 | 67.65 | 72.03 | 83.10 | 80.74 | 71.00 | 50.80 | a | 43.73 | 30.16 | 52.91 | ||||||||||||
1985 | 24.13 | a | 25.50 | 41.90 | 57.60 | 67.55 | 78.67 | 84.27 | a | 84.39 | 69.43 | 58.90 | 40.30 | 28.67 | a | 55.11 | ||||||||||
1986 | 33.10 | 38.04 | 52.94 | 55.30 | c | 64.84 | 79.27 | 80.35 | 83.29 | 67.80 | 57.45 | 42.03 | 37.58 | 57.67 | ||||||||||||
1987 | 29.68 | 37.68 | 42.55 | 61.27 | 66.87 | 78.53 | 82.81 | 79.52 | 75.97 | 65.13 | 45.13 | 31.97 | 58.09 | |||||||||||||
1988 | 25.00 | 33.00 | 42.23 | 60.17 | 67.06 | 82.03 | 88.19 | 85.19 | 72.47 | 68.70 | a | 42.47 | 31.39 | 58.16 | ||||||||||||
1989 | 27.26 | 23.63 | a | 48.65 | 62.03 | 69.13 | 77.00 | 88.80 | a | 81.19 | 74.30 | 62.39 | 48.53 | 30.29 | 57.77 | |||||||||||
1990 | 34.55 | 32.25 | 48.00 | a | 61.33 | 65.61 | 79.52 | a | 83.23 | 83.61 | 79.00 | 61.37 | a | 47.54 | b | 27.84 | 58.65 | |||||||||
1991 | 26.45 | 38.39 | 43.74 | 54.93 | 66.81 | 76.43 | 83.13 | 82.84 | 74.20 | 63.23 | 39.00 | 26.29 | 56.29 | |||||||||||||
1992 | 26.29 | 39.55 | 51.32 | 63.13 | 70.68 | 75.53 | 78.81 | 81.97 | 73.37 | 65.68 | 36.67 | 30.39 | 57.78 | |||||||||||||
1993 | 30.10 | 28.68 | 44.84 | 50.80 | 66.77 | 74.17 | 81.26 | 79.97 | 72.77 | 57.87 | a | 38.40 | 32.07 | a | 54.81 | |||||||||||
1994 | 33.65 | 33.93 | a | 51.81 | 57.89 | c | 73.00 | j | 82.64 | h | 86.90 | k | 85.22 | h | 76.71 | i | 62.19 | j | 39.40 | j | 33.20 | k | 44.32 | h | ||
1995 | 32.43 | j | 44.89 | i | 49.50 | i | 55.16 | k | ----- | z | 74.41 | h | 81.45 | k | 85.45 | i | 73.70 | j | 59.90 | k | 50.30 | j | 45.50 | m | ----- | z |
1996 | 33.32 | i | 35.30 | i | 47.33 | j | 60.00 | j | 69.36 | i | 80.40 | j | 85.43 | j | 86.05 | i | 70.65 | j | 58.77 | i | 48.47 | k | 37.17 | m | ----- | z |
1997 | 31.14 | i | 32.89 | i | 52.05 | k | 50.19 | i | 67.00 | j | 76.81 | i | 83.41 | i | 79.00 | j | 73.71 | i | 62.48 | h | 45.94 | m | 31.95 | k | ----- | z |
1998 | 36.60 | k | 37.63 | i | 43.55 | i | 54.71 | i | 68.84 | l | 70.33 | i | 86.68 | i | 84.05 | j | 79.55 | j | 63.73 | i | 47.63 | k | 37.68 | l | ----- | z |
1999 | 39.65 | k | 39.42 | i | 56.43 | h | 57.00 | i | 62.15 | k | 76.77 | h | 83.95 | j | 81.50 | i | 72.05 | i | 69.76 | j | 58.95 | j | 35.20 | k | ----- | z |
2000 | 38.90 | j | 45.95 | i | 49.26 | h | 65.00 | k | 70.91 | i | 81.59 | h | 87.89 | l | 86.70 | h | 75.60 | j | 63.04 | g | 33.95 | j | 31.37 | l | ----- | z |
2001 | 27.23 | i | 34.37 | i | 45.50 | i | 60.33 | i | 67.73 | i | 78.71 | i | 87.48 | j | 84.57 | h | 79.37 | k | 64.20 | a | 51.47 | 31.39 | 49.02 | i | ||
2002 | 30.32 | c | 32.77 | b | 37.81 | e | 62.24 | a | 68.62 | b | 84.47 | 89.45 | 83.59 | b | 74.30 | c | 58.42 | 41.93 | c | 36.87 | 58.40 | |||||
2003 | 35.66 | b | 35.67 | d | 45.87 | a | 57.22 | g | 65.10 | a | 77.00 | b | 91.45 | 84.23 | a | 71.33 | 67.80 | a | 37.03 | a | 32.62 | b | 58.52 | a | ||
2004 | 30.29 | 32.07 | 53.81 | 59.18 | b | 65.61 | c | 77.13 | 83.58 | 80.79 | c | 71.52 | a | 57.94 | 43.24 | a | 33.47 | a | 57.38 | |||||||
2005 | 39.58 | 38.64 | 47.52 | 57.66 | a | 66.45 | 71.63 | 86.84 | 81.10 | 73.90 | 62.39 | 46.87 | 33.32 | 58.82 | ||||||||||||
2006 | 36.90 | 35.18 | 44.58 | 61.17 | 71.39 | 82.70 | 87.06 | 81.52 | 67.57 | 54.10 | b | 46.90 | 30.26 | 58.28 | ||||||||||||
2007 | 22.77 | 36.82 | 49.58 | 58.17 | 66.46 | c | 81.00 | 89.77 | 85.42 | 74.37 | 60.19 | 51.60 | 26.68 | 58.57 | ||||||||||||
2008 | 25.45 | 31.79 | 39.74 | 50.83 | 62.54 | c | 74.37 | 86.52 | 84.23 | 73.00 | 62.45 | 49.10 | 33.23 | 56.10 | ||||||||||||
2009 | 30.52 | 38.29 | 47.13 | 52.23 | 66.45 | 71.13 | 84.13 | 82.16 | 75.80 | 53.67 | a | 45.97 | a | 25.90 | a | 56.11 | ||||||||||
2010 | 29.60 | a | 29.79 | 45.25 | c | 54.17 | 60.39 | 77.10 | a | 84.84 | 82.10 | 78.43 | 62.61 | 42.87 | 34.61 | 56.81 | ||||||||||
2011 | 25.87 | 27.14 | 43.81 | 50.60 | 59.74 | 75.77 | 82.42 | 86.03 | 75.60 | 61.35 | 44.03 | 33.58 | 55.50 | |||||||||||||
2012 | 39.10 | 37.07 | 54.10 | 63.13 | 71.81 | 86.20 | 87.58 | 86.06 | 76.57 | 60.74 | 52.97 | 31.00 | 62.19 | |||||||||||||
2013 | 20.55 | 31.21 | 43.55 | 50.07 | 67.23 | 81.90 | 87.52 | 84.39 | 74.00 | 56.03 | 42.90 | 26.06 | 55.45 | |||||||||||||
2014 | 30.16 | 37.75 | 50.42 | 54.90 | 65.52 | 77.33 | 87.00 | 78.87 | 75.13 | 62.90 | 43.73 | 36.00 | 58.31 | |||||||||||||
2015 | 32.65 | 44.04 | 53.84 | 58.22 | c | 61.68 | 82.13 | 82.00 | 84.45 | 78.53 | 66.58 | 44.50 | 26.32 | 59.58 | ||||||||||||
2016 | 24.87 | 33.38 | 45.94 | 55.30 | 62.94 | 83.13 | 86.17 | a | 82.48 | 74.63 | 65.77 | 52.53 | 31.06 | 58.18 | ||||||||||||
2017 | 27.71 | 40.57 | 54.03 | 56.27 | 64.06 | 81.17 | 87.35 | 84.26 | 75.17 | 58.16 | 52.43 | 37.71 | 59.91 | |||||||||||||
2018 | 36.37 | a | 37.36 | 47.10 | 58.30 | c | 70.13 | 83.17 | 89.80 | a | 84.68 | 80.67 | 57.26 | 41.70 | 31.42 | 59.83 | ||||||||||
2019 | 27.58 | 30.21 | 38.17 | a | 57.13 | 59.29 | 73.07 | 86.32 | 86.55 | 79.10 | 53.19 | 46.23 | 30.39 | 55.60 | ||||||||||||
2020 | 29.35 | 27.86 | 44.23 | 54.97 | 68.81 | 78.37 | 86.32 | 90.32 | 75.27 | 61.13 | 48.53 | 33.35 | 58.21 | |||||||||||||
2021 | 30.94 | 33.64 | 45.39 | 56.00 | 68.10 | 85.07 | a | 89.45 | 84.61 | 79.07 | 58.55 | 51.63 | 37.77 | 60.02 | ||||||||||||
2022 | 28.39 | 29.25 | 41.90 | 55.83 | a | 63.61 | 78.63 | 87.19 | 86.48 | 79.77 | 59.61 | 38.97 | 27.55 | 56.43 | ||||||||||||
2023 | 27.35 | 26.75 | 33.39 | 48.50 | 69.81 | 73.83 | 87.52 | 84.55 | 77.40 | 62.26 | 46.90 | 34.19 | 56.04 | |||||||||||||
2024 | 31.81 | 36.52 | 44.32 | 56.50 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.55 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 30.09 | 34.00 | 45.39 | 56.17 | 65.62 | 78.34 | 85.55 | 83.38 | 74.86 | 60.46 | 44.84 | 32.04 | 57.45 | |||||||||||||
S.D. | 5.19 | 4.64 | 4.98 | 4.27 | 3.25 | 4.00 | 2.87 | 2.25 | 3.26 | 4.15 | 4.59 | 4.24 | 1.87 | |||||||||||||
SKEW | 0.43 | -0.22 | -0.01 | -0.20 | -0.09 | 0.05 | -0.16 | 0.44 | -0.24 | -0.25 | 0.01 | 0.60 | 0.07 | |||||||||||||
MAX | 44.35 | 44.04 | 54.10 | 63.13 | 71.81 | 86.20 | 91.45 | 90.32 | 80.67 | 68.70 | 52.97 | 44.58 | 62.19 | |||||||||||||
MIN | 20.55 | 23.63 | 33.39 | 48.07 | 59.29 | 71.13 | 78.81 | 78.87 | 67.57 | 50.80 | 36.57 | 25.48 | 52.91 | |||||||||||||
YRS | 40 | 40 | 40 | 38 | 39 | 39 | 39 | 39 | 39 | 40 | 40 | 40 | 37 |