YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.13 | 48.23 | 45.17 | a | 51.51 | i | ||
1981 | 43.35 | 44.50 | 47.35 | 61.70 | 66.71 | 82.90 | 85.58 | 83.58 | 78.40 | 58.65 | 51.53 | 42.71 | 62.25 | |||||||||||||
1982 | 35.84 | 40.18 | 49.10 | 57.52 | a | 68.61 | 79.67 | 85.55 | 82.42 | 73.97 | 57.10 | 44.07 | 36.73 | a | 59.23 | |||||||||||
1983 | 38.65 | 43.89 | 47.90 | a | 52.76 | a | 65.48 | 75.90 | 83.58 | 84.29 | ----- | z | 63.58 | 47.03 | 37.00 | a | 58.19 | a | ||||||||
1984 | 35.10 | 39.96 | a | 47.97 | 55.20 | 75.39 | 76.77 | 86.32 | 83.35 | 77.76 | a | 54.48 | 47.47 | 36.20 | a | 59.66 | ||||||||||
1985 | 35.21 | c | 38.07 | 47.87 | 61.07 | 69.84 | 83.00 | 87.42 | 85.68 | 70.17 | 60.87 | 45.04 | b | 40.58 | 60.40 | |||||||||||
1986 | 42.34 | b | 45.57 | 56.23 | 57.50 | 67.42 | 82.70 | 83.94 | 86.06 | 68.40 | 57.29 | 46.32 | b | 38.77 | a | 61.04 | ||||||||||
1987 | 36.13 | 40.07 | 46.13 | 62.57 | 69.19 | 82.63 | 83.42 | 81.65 | 75.77 | 66.26 | 44.97 | 34.81 | 60.30 | |||||||||||||
1988 | 34.23 | 41.93 | 48.84 | 58.97 | 69.52 | 83.17 | a | 89.52 | 85.06 | 73.43 | 70.10 | 48.83 | 37.28 | b | 61.74 | |||||||||||
1989 | 32.80 | a | 37.68 | 55.40 | a | 66.17 | 72.68 | 80.27 | 90.06 | 81.65 | 76.83 | 63.58 | 54.57 | 42.71 | 62.87 | |||||||||||
1990 | 37.66 | b | 42.14 | 53.94 | 63.87 | 67.39 | 85.07 | a | 86.50 | a | 82.74 | 76.83 | 62.58 | 47.87 | 31.26 | 61.49 | ||||||||||
1991 | 31.48 | 45.18 | 45.30 | a | 55.90 | 67.74 | 78.27 | 86.10 | 84.26 | 75.97 | 66.39 | 44.87 | 33.52 | 59.58 | ||||||||||||
1992 | 33.77 | 43.28 | 52.29 | 66.73 | 71.94 | 79.77 | 82.17 | a | 84.97 | a | 77.17 | 67.55 | 41.41 | a | 32.48 | 61.13 | ||||||||||
1993 | 36.52 | 38.75 | 52.23 | 58.87 | 70.16 | 77.40 | 84.61 | 82.97 | 75.70 | 59.90 | 43.33 | 36.81 | 59.77 | |||||||||||||
1994 | 41.06 | 39.54 | 56.87 | 61.70 | 71.19 | 86.03 | 90.61 | 88.90 | 77.80 | 60.32 | 42.07 | 37.74 | 62.82 | |||||||||||||
1995 | 36.42 | 51.00 | 50.35 | 56.10 | 63.00 | 76.07 | 85.48 | 87.68 | 78.62 | a | 64.26 | 54.90 | 43.68 | 62.30 | ||||||||||||
1996 | 39.94 | 48.04 | a | ----- | z | 60.50 | 73.50 | a | 83.67 | 90.48 | 87.65 | 73.80 | 62.19 | 47.62 | a | 38.84 | 64.20 | a | ||||||||
1997 | 36.61 | 40.96 | 55.90 | 54.50 | 72.52 | 81.07 | 86.19 | 83.06 | 73.43 | 61.48 | 47.83 | 35.61 | 60.77 | |||||||||||||
1998 | 41.42 | 40.39 | 49.03 | 54.97 | 68.23 | 76.57 | 89.29 | 87.48 | 76.21 | a | 59.68 | 48.17 | 38.55 | 60.83 | ||||||||||||
1999 | 42.68 | 45.21 | 57.16 | 54.52 | a | 66.45 | 78.67 | 85.58 | 81.23 | 74.60 | 67.74 | 56.80 | 39.65 | 62.52 | ||||||||||||
2000 | 41.42 | 45.97 | 49.32 | 65.50 | 74.10 | a | 84.23 | 90.13 | 89.10 | 77.77 | 62.45 | 40.47 | 40.35 | 63.40 | ||||||||||||
2001 | 37.32 | 42.36 | 51.65 | 59.47 | 73.19 | 83.30 | 87.26 | 84.81 | 81.33 | 67.23 | 52.37 | 35.81 | 63.01 | |||||||||||||
2002 | 36.77 | a | 41.25 | 49.35 | 65.53 | 72.32 | 87.23 | 91.87 | 87.29 | 74.33 | 60.61 | 46.97 | 39.68 | 62.77 | ||||||||||||
2003 | 44.65 | 41.54 | 50.00 | 58.90 | 72.68 | 82.43 | 94.61 | 87.83 | a | 78.03 | 69.61 | 45.30 | 38.65 | 63.69 | ||||||||||||
2004 | 35.71 | 38.89 | a | 59.13 | 59.03 | 70.71 | 83.07 | 88.58 | 84.74 | 75.50 | 60.87 | 43.93 | 38.13 | 61.52 | ||||||||||||
2005 | 43.03 | 43.18 | 50.81 | 60.17 | 70.94 | 78.13 | 92.48 | 82.19 | 76.57 | 64.23 | 50.87 | 39.70 | a | 62.69 | ||||||||||||
2006 | 40.58 | 44.43 | 47.61 | 62.40 | 76.03 | 86.20 | 90.71 | 84.47 | a | 72.23 | 57.68 | 50.50 | 37.55 | 62.53 | ||||||||||||
2007 | 35.45 | 45.57 | 54.84 | 60.53 | 71.42 | 84.70 | 92.48 | 86.81 | 78.20 | 62.71 | 54.87 | 34.84 | 63.53 | |||||||||||||
2008 | 32.90 | 39.07 | 49.35 | 55.07 | c | 65.77 | a | 80.43 | 88.90 | 84.19 | 75.21 | a | 62.94 | 50.93 | 34.68 | 59.95 | ||||||||||
2009 | 37.03 | 42.64 | 50.87 | 55.60 | 71.18 | c | 74.40 | 88.11 | c | 83.90 | b | 75.52 | a | 56.57 | a | 49.13 | 28.60 | a | 59.46 | |||||||
2010 | 30.84 | 32.57 | 44.74 | 56.57 | 62.32 | 79.57 | 85.97 | 79.57 | a | 76.93 | a | 60.32 | 43.40 | 40.03 | a | 57.74 | ||||||||||
2011 | 31.65 | 35.96 | 49.65 | 54.69 | a | 62.27 | a | 79.03 | 85.61 | 87.77 | a | 75.21 | a | 60.68 | 45.00 | 34.19 | 58.48 | |||||||||
2012 | 39.23 | 38.36 | a | 51.03 | 62.00 | 71.84 | 85.27 | 85.81 | 85.68 | 76.20 | 63.74 | 52.03 | 34.84 | 62.17 | ||||||||||||
2013 | 27.81 | 36.04 | 51.42 | 55.77 | 68.39 | 84.37 | 88.71 | 82.19 | 73.00 | c | 58.26 | 45.50 | 29.77 | 58.43 | ||||||||||||
2014 | 38.42 | 45.32 | 51.55 | 56.07 | 66.39 | 80.80 | 88.16 | 79.71 | 77.73 | 63.97 | 47.03 | 37.65 | 61.07 | |||||||||||||
2015 | 37.26 | 47.04 | 55.35 | 57.57 | 63.87 | 81.80 | 82.13 | 82.84 | 79.30 | 63.84 | 43.80 | 32.74 | 60.63 | |||||||||||||
2016 | 31.97 | 42.34 | 53.68 | 56.70 | 65.33 | a | 86.53 | 87.29 | 81.90 | 74.03 | 64.77 | 51.37 | 35.84 | 60.98 | ||||||||||||
2017 | 33.06 | 45.11 | 56.55 | 57.23 | 67.94 | 86.00 | 88.97 | 85.06 | 74.37 | 61.26 | 55.13 | 42.29 | 62.75 | |||||||||||||
2018 | 39.97 | 42.50 | 49.23 | 62.87 | 72.42 | 85.03 | 90.26 | 86.68 | 80.13 | 54.74 | 44.80 | 34.58 | 61.93 | |||||||||||||
2019 | 32.55 | 33.93 | 46.29 | 60.03 | 60.45 | 77.87 | 87.68 | 87.77 | 79.03 | 57.84 | 49.33 | 34.81 | 58.97 | |||||||||||||
2020 | 32.03 | 39.45 | 50.61 | 59.83 | a | 73.87 | 81.90 | 88.03 | 91.06 | 77.07 | a | 67.81 | 49.03 | 35.06 | 62.15 | |||||||||||
2021 | 34.94 | 41.43 | 47.50 | a | 59.69 | d | 71.10 | 86.70 | 89.43 | a | 84.87 | 78.17 | 56.61 | 52.53 | 38.17 | a | 61.76 | |||||||||
2022 | 36.35 | 39.50 | 49.45 | 59.15 | d | 70.32 | 82.97 | 88.58 | 83.87 | 80.67 | 62.06 | 41.20 | 35.81 | 60.83 | ||||||||||||
2023 | 34.10 | 33.32 | 40.26 | 56.47 | 71.45 | 77.33 | 91.87 | 85.32 | 77.23 | 64.32 | 48.63 | 39.10 | 59.95 | |||||||||||||
2024 | 38.35 | 42.59 | 48.90 | 58.50 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.28 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 36.70 | 41.52 | 50.67 | 59.02 | 69.38 | 81.60 | 87.82 | 84.75 | 76.16 | 62.05 | 47.89 | 37.11 | 61.20 | |||||||||||||
S.D. | 3.85 | 3.88 | 3.85 | 3.50 | 3.70 | 3.42 | 2.87 | 2.57 | 2.62 | 3.81 | 4.08 | 3.52 | 1.52 | |||||||||||||
SKEW | 0.09 | -0.18 | 0.05 | 0.45 | -0.50 | -0.23 | 0.07 | 0.18 | -0.61 | 0.08 | 0.27 | -0.05 | -0.35 | |||||||||||||
MAX | 44.65 | 51.00 | 59.13 | 66.73 | 76.03 | 87.23 | 94.61 | 91.06 | 81.33 | 70.10 | 56.80 | 45.17 | 63.69 | |||||||||||||
MIN | 27.81 | 32.57 | 40.26 | 52.76 | 60.45 | 74.40 | 82.13 | 79.57 | 68.40 | 54.48 | 40.47 | 28.60 | 57.74 | |||||||||||||
YRS | 44 | 44 | 43 | 43 | 43 | 43 | 43 | 43 | 42 | 44 | 44 | 44 | 41 |