YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1951 | 41.29 | n | 47.30 | a | 51.35 | e | 69.43 | g | 73.43 | c | 79.52 | e | 95.81 | e | 91.15 | d | 83.83 | f | 63.75 | g | 50.16 | k | 38.47 | p | 73.09 | f |
1952 | 38.19 | j | 41.45 | g | 50.52 | j | 73.67 | u | 75.35 | e | 82.95 | i | 91.92 | f | 90.50 | s | 86.44 | l | 79.31 | o | 48.45 | s | 44.25 | o | 75.35 | k |
1953 | 49.75 | k | 49.26 | i | 58.54 | g | 61.81 | d | 67.26 | d | 75.72 | e | 94.89 | d | 91.48 | d | 87.04 | d | 72.00 | e | 60.41 | h | 39.83 | m | 78.60 | e |
1954 | 45.00 | j | 52.00 | h | 52.61 | h | 68.22 | l | 81.04 | h | 79.76 | i | 92.50 | k | 86.14 | i | 84.71 | p | 68.11 | m | 55.18 | s | 39.52 | h | ----- | z |
1955 | 34.89 | l | 38.70 | h | 48.76 | j | 60.15 | j | 69.33 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 84.87 | 93.94 | 91.68 | 86.30 | 64.84 | 48.90 | 43.52 | 73.43 | e | |||||||
1958 | 39.87 | 52.81 | b | 52.48 | 60.21 | a | 82.48 | 81.97 | 91.61 | 95.29 | 82.57 | 75.52 | 52.59 | a | 47.32 | 67.89 | ||||||||||
1959 | 46.00 | 46.86 | 55.84 | 68.79 | a | 68.48 | 87.83 | 97.55 | 90.39 | 76.47 | 67.26 | 53.63 | 43.47 | a | 66.88 | |||||||||||
1960 | 36.40 | a | 42.55 | 55.53 | a | 66.67 | 72.03 | 88.53 | 100.42 | 89.06 | 86.37 | 68.61 | 51.57 | 42.58 | 66.69 | |||||||||||
1961 | 45.20 | a | 49.61 | 55.39 | 64.47 | 76.52 | 93.10 | 96.90 | a | 97.47 | a | 74.87 | 65.13 | 49.60 | 39.29 | 67.29 | ||||||||||
1962 | 31.90 | 41.32 | 51.16 | 71.17 | 70.37 | a | 84.60 | 91.55 | 90.94 | 84.67 | 67.87 | 55.00 | 45.16 | 65.48 | ||||||||||||
1963 | 36.65 | 55.41 | a | 56.48 | 60.33 | 76.00 | 79.60 | 91.26 | 92.68 | 87.80 | 73.23 | 52.07 | b | 37.39 | 66.57 | |||||||||||
1964 | 36.92 | g | 38.26 | j | 47.59 | i | 58.97 | a | 68.81 | 75.50 | 93.20 | a | 87.10 | 76.03 | 71.78 | d | 50.37 | k | 43.42 | g | 75.91 | e | ||||
1965 | 39.95 | k | 46.75 | 52.00 | 62.90 | a | 69.00 | a | 79.13 | 90.45 | 86.68 | 71.97 | 73.79 | b | 58.80 | j | 42.00 | j | 70.30 | c | ||||||
1966 | 42.48 | j | 44.00 | i | 54.30 | h | 63.17 | 78.10 | 80.20 | 91.71 | 90.90 | a | 83.73 | 67.56 | d | 54.65 | j | 42.00 | j | 79.34 | e | |||||
1967 | 43.24 | j | 49.00 | i | 55.85 | k | 54.70 | g | 71.32 | 78.70 | 95.00 | 96.45 | 85.93 | 66.84 | f | 55.00 | j | 38.15 | k | 85.48 | g | |||||
1968 | 41.68 | i | 49.60 | i | 58.52 | j | 59.21 | a | 71.23 | 81.60 | 94.77 | 81.19 | 77.20 | 65.93 | d | 48.53 | k | 42.38 | j | 75.88 | e | |||||
1969 | 41.50 | i | 44.44 | j | 53.00 | j | 65.11 | b | 76.61 | 79.73 | 90.77 | 92.00 | 81.50 | 60.96 | d | 54.22 | l | 44.48 | j | 78.10 | e | |||||
1970 | 42.76 | j | 51.32 | i | 52.67 | a | 54.90 | 72.00 | 82.97 | 91.94 | 93.84 | 72.87 | 61.63 | a | 50.70 | 39.48 | 67.30 | b | ||||||||
1971 | 39.03 | 45.21 | 48.77 | 60.23 | 72.81 | 77.23 | 90.74 | 95.71 | 74.13 | 61.94 | 47.47 | 37.74 | 62.59 | |||||||||||||
1972 | 36.97 | 42.62 | 55.61 | 59.90 | 73.87 | 82.07 | 89.42 | 91.58 | 72.87 | 64.84 | 48.37 | 34.35 | 62.71 | |||||||||||||
1973 | 39.10 | 47.75 | 54.00 | 61.17 | a | 75.26 | 81.40 | 91.16 | 89.16 | 76.87 | 66.03 | 46.20 | 43.39 | 64.29 | ||||||||||||
1974 | 36.52 | 45.92 | c | 51.84 | 59.20 | 68.81 | 87.53 | 90.00 | 87.61 | 82.83 | 64.03 | 51.23 | 38.19 | 63.64 | ||||||||||||
1975 | 35.74 | 42.64 | 49.55 | 52.97 | 68.65 | 76.57 | 93.48 | 84.19 | 82.53 | 64.21 | b | 48.70 | 39.23 | 61.54 | ||||||||||||
1976 | 39.06 | 42.79 | 47.32 | 59.87 | 76.13 | 77.36 | b | 90.84 | 83.16 | 78.70 | 66.16 | 55.13 | 42.74 | 63.27 | ||||||||||||
1977 | 28.32 | 47.82 | 50.50 | a | 69.43 | b | 65.52 | 86.07 | 88.32 | 87.58 | 77.20 | 67.00 | 48.17 | 43.68 | 63.30 | |||||||||||
1978 | 43.58 | 44.61 | 60.61 | 61.41 | a | 69.06 | 80.07 | 90.35 | 87.58 | 75.90 | a | 68.94 | 46.80 | 35.29 | 63.68 | |||||||||||
1979 | 27.00 | 42.79 | 56.52 | 61.63 | 72.67 | a | 84.83 | 92.27 | a | 88.03 | 84.57 | 67.61 | 46.28 | l | 45.44 | o | 67.79 | b | ||||||||
1980 | 37.05 | l | 50.05 | g | 51.03 | 66.60 | 70.00 | 78.47 | 90.52 | 84.27 | a | 76.93 | 68.04 | d | 50.60 | 42.71 | c | 67.92 | b | |||||||
1981 | 40.68 | 47.00 | 56.39 | 61.86 | b | 68.00 | 77.87 | 89.10 | 93.70 | a | 79.97 | a | 62.76 | f | 54.20 | 43.65 | 64.76 | a | ||||||||
1982 | 35.54 | c | 38.43 | 52.86 | b | 58.17 | a | 69.53 | a | 81.07 | a | 83.50 | i | 90.23 | i | 76.00 | 63.32 | f | 45.10 | a | 39.32 | 55.11 | c | |||
1983 | 43.19 | d | 48.64 | 53.13 | 59.18 | b | 70.06 | 78.03 | a | 85.00 | b | 91.06 | 78.67 | 66.00 | k | 50.86 | a | 32.10 | a | 62.72 | a | |||||
1984 | 31.06 | 37.77 | c | 51.42 | 57.63 | 68.94 | 76.23 | 89.67 | a | 91.29 | 75.37 | 61.78 | h | 46.53 | 33.23 | 59.92 | a | |||||||||
1985 | 30.39 | 35.79 | 47.87 | a | 65.83 | 74.82 | c | 83.55 | a | ----- | z | 86.52 | b | 69.21 | a | 60.17 | b | 36.80 | 23.90 | 55.90 | a | |||||
1986 | 40.79 | g | 48.88 | c | 60.84 | 61.27 | 73.42 | 87.76 | a | 85.26 | 93.07 | c | 71.64 | e | 68.00 | 51.60 | 38.87 | 67.33 | a | |||||||
1987 | 37.70 | a | 48.96 | a | 54.71 | 72.07 | 75.40 | a | 84.50 | 86.77 | 86.70 | a | 82.23 | 72.61 | 53.07 | 42.39 | 66.43 | |||||||||
1988 | 35.58 | 48.52 | 55.42 | 66.34 | a | 71.58 | 85.57 | 91.90 | 88.97 | 76.87 | 74.52 | 46.83 | 33.70 | d | 64.65 | |||||||||||
1989 | 30.61 | c | 30.43 | 50.19 | 66.95 | i | 72.27 | a | 84.79 | b | 93.68 | 86.84 | 80.03 | a | 63.82 | c | 49.50 | n | 40.00 | o | 65.85 | c | ||||
1990 | 41.93 | p | 40.40 | m | 56.59 | n | 69.33 | o | 68.08 | e | 81.03 | 93.59 | i | 88.32 | 85.97 | a | 69.19 | o | 54.00 | p | 38.21 | q | 80.85 | h | ||
1991 | 35.38 | o | 54.07 | m | 52.76 | n | 58.18 | m | 66.76 | j | 76.44 | c | 91.19 | 92.39 | 81.07 | c | 66.59 | n | 47.36 | p | 43.33 | p | 85.27 | h | ||
1992 | 42.14 | q | 54.38 | p | 60.38 | o | 68.83 | l | 81.00 | i | 83.20 | ----- | z | 90.84 | 78.21 | a | 71.67 | m | 44.42 | r | 38.72 | m | 84.08 | i | ||
1993 | 33.40 | p | 35.40 | m | 51.17 | m | 59.89 | l | 79.24 | f | 74.93 | c | 78.61 | 83.38 | b | 79.50 | b | 68.06 | n | 49.23 | q | 42.18 | n | 79.10 | h | |
1994 | 42.53 | p | 43.14 | n | 61.47 | l | 67.14 | p | 75.15 | d | 82.43 | 92.52 | 93.43 | a | 82.78 | c | 63.50 | o | 42.79 | p | 39.82 | n | 85.26 | g | ||
1995 | 44.06 | o | 52.56 | l | 53.79 | l | 61.47 | m | 70.55 | k | 76.87 | 89.00 | 88.16 | 82.59 | h | 65.94 | m | 52.75 | n | 45.07 | p | 84.68 | i | |||
1996 | 39.94 | n | 45.57 | o | 55.53 | n | 62.65 | m | 67.06 | m | 82.12 | d | 92.83 | b | 90.31 | b | 75.91 | h | 66.22 | m | 52.36 | p | 44.40 | p | 88.42 | i |
1997 | 40.07 | p | 46.47 | m | 60.76 | n | 61.56 | n | 75.55 | k | 80.37 | c | 87.71 | c | 91.07 | a | 83.14 | h | 67.33 | m | 57.92 | r | 41.07 | p | 86.38 | i |
1998 | 46.20 | p | 49.13 | m | 54.94 | o | 64.33 | l | 66.48 | f | 75.93 | 94.58 | 92.54 | c | 86.83 | g | 66.05 | l | 52.38 | q | 40.44 | m | 87.68 | i | ||
1999 | 42.00 | o | 43.93 | m | 56.44 | m | 60.60 | j | 72.91 | i | 80.13 | 90.10 | a | 91.65 | 80.30 | g | 73.50 | k | 59.26 | k | 41.89 | l | 87.29 | i | ||
2000 | 41.95 | l | 52.45 | i | 55.52 | h | 69.90 | i | 73.73 | i | 84.29 | f | 91.50 | c | 92.63 | a | 77.93 | 67.14 | i | 43.59 | m | 38.19 | o | 87.36 | i | |
2001 | 38.00 | p | 42.33 | m | 59.43 | q | 63.11 | l | 79.07 | c | 85.00 | c | 91.66 | b | 95.18 | c | 87.57 | i | 72.14 | q | 56.31 | q | 40.74 | l | 87.73 | h |
2002 | 40.68 | l | 45.63 | i | 54.17 | m | 66.53 | k | 76.29 | g | 85.70 | c | 98.68 | i | 88.00 | j | 85.17 | g | 67.41 | n | 54.15 | j | 47.25 | k | 85.70 | k |
2003 | 47.57 | j | 48.69 | l | 59.10 | k | 65.90 | j | 76.60 | f | 87.36 | e | 100.25 | c | 93.87 | a | 83.52 | c | 77.50 | k | 49.33 | l | 48.30 | k | 91.25 | h |
2004 | 37.28 | m | 46.28 | k | 65.55 | i | 70.05 | i | 72.63 | d | 85.28 | a | 93.74 | d | 92.14 | b | 83.93 | o | 72.94 | n | 50.21 | k | 44.57 | j | 85.95 | h |
2005 | 42.68 | l | 49.71 | k | 59.96 | h | 65.14 | i | 70.95 | k | 81.09 | h | 96.44 | f | 95.10 | b | 81.82 | b | 70.73 | i | 51.63 | k | 39.59 | n | 88.46 | j |
2006 | 45.76 | n | 46.94 | k | 54.45 | k | 67.94 | m | 78.16 | f | 84.31 | a | 99.87 | h | 92.28 | b | 80.12 | d | 71.24 | n | 54.12 | m | 42.31 | r | 85.57 | i |
2007 | 42.06 | n | 51.94 | k | 63.25 | o | 66.11 | k | 80.52 | j | 90.40 | j | 101.81 | e | 94.82 | n | 86.19 | i | 68.78 | m | 59.50 | t | 42.94 | m | 101.81 | k |
2008 | 29.79 | q | 40.38 | u | 53.75 | o | 64.57 | p | 80.67 | s | 90.42 | r | 97.00 | l | 93.00 | g | 79.60 | y | 66.80 | u | 56.34 | a | 40.14 | c | 48.24 | j |
2009 | 45.36 | t | 48.15 | b | 53.46 | e | 64.34 | a | 73.73 | a | 79.83 | a | 91.65 | 87.52 | 85.70 | 60.10 | a | 53.56 | c | 34.71 | c | 66.61 | a | |||
2010 | 44.19 | 46.36 | 55.94 | 60.27 | 63.83 | a | 79.47 | 90.42 | 85.27 | a | 81.07 | 67.23 | 46.87 | 42.77 | 63.64 | |||||||||||
2011 | 37.61 | 44.22 | a | 51.43 | j | 58.13 | o | 68.88 | g | 70.85 | q | 90.26 | 91.87 | 85.13 | 66.53 | a | 48.43 | 41.03 | 63.14 | d | ||||||
2012 | 42.94 | 45.31 | ----- | z | 65.97 | 68.36 | t | 80.93 | 95.10 | 91.65 | 82.17 | 64.35 | 53.37 | 42.29 | 66.41 | b | ||||||||||
2013 | 29.65 | 44.82 | 57.29 | 62.03 | 73.55 | 83.47 | 95.39 | 92.42 | ----- | z | 63.94 | 50.14 | a | 34.65 | 62.48 | a | ||||||||||
2014 | 40.19 | 48.39 | ----- | z | 65.45 | j | 75.23 | 81.40 | 95.58 | 88.90 | 81.87 | 72.16 | 48.30 | 47.54 | c | 67.96 | b | |||||||||
2015 | 40.26 | 53.78 | a | 59.35 | 64.93 | 74.48 | 90.50 | 89.90 | 91.35 | 81.87 | 72.94 | 46.43 | 38.68 | 67.04 | ||||||||||||
2016 | 42.19 | 51.93 | 57.45 | 69.13 | 72.26 | 85.70 | 89.23 | a | 89.10 | 76.33 | 66.00 | 56.57 | 33.06 | 65.75 | ||||||||||||
2017 | 30.87 | 45.71 | 57.90 | 59.87 | 71.58 | 82.50 | 96.39 | 92.00 | 77.33 | 61.94 | 53.00 | 36.74 | 63.82 | |||||||||||||
2018 | 46.06 | 44.18 | 52.61 | 63.57 | 75.90 | 81.90 | 93.94 | 89.65 | 79.67 | 63.39 | 49.83 | 38.55 | 64.94 | |||||||||||||
2019 | 43.77 | 40.71 | 51.62 | g | 64.34 | a | 70.32 | 80.23 | 90.16 | 90.55 | 77.90 | 57.16 | 51.93 | 41.81 | 64.45 | a | ||||||||||
2020 | 43.77 | 46.52 | 56.03 | 64.53 | 72.87 | 77.73 | 90.29 | 90.60 | f | 82.93 | 66.35 | 48.67 | 41.19 | 62.81 | a | |||||||||||
2021 | 43.45 | 42.68 | 56.23 | 64.23 | 71.90 | 90.57 | 97.26 | 87.29 | 80.48 | a | 65.45 | 53.23 | 41.42 | 66.18 | ||||||||||||
2022 | 35.13 | 44.04 | 57.32 | 57.90 | 67.03 | 81.10 | 95.58 | 95.45 | 85.50 | 69.84 | 41.33 | 36.65 | 63.91 | |||||||||||||
2023 | 40.48 | 43.79 | 46.03 | 59.77 | 76.42 | 79.27 | 94.61 | 89.48 | 79.93 | 66.71 | 52.23 | 42.03 | 64.23 | |||||||||||||
2024 | 40.00 | 49.45 | 53.62 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.72 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 38.07 | 45.46 | 53.87 | 62.58 | 72.30 | 81.88 | 92.16 | 90.33 | 79.94 | 66.78 | 50.05 | 39.41 | 64.85 | |||||||||||||
S.D. | 5.24 | 4.69 | 3.55 | 4.08 | 3.61 | 4.05 | 3.79 | 3.40 | 4.35 | 4.19 | 3.91 | 4.60 | 1.73 | |||||||||||||
SKEW | -0.40 | -0.68 | -0.16 | 0.24 | 0.17 | 0.47 | -0.28 | -0.38 | -0.25 | 0.15 | -0.97 | -0.90 | 0.06 | |||||||||||||
MAX | 46.06 | 55.41 | 60.84 | 72.07 | 82.48 | 93.10 | 101.81 | 97.47 | 87.80 | 75.52 | 56.57 | 47.54 | 67.89 | |||||||||||||
MIN | 27.00 | 30.43 | 46.03 | 52.97 | 63.83 | 74.93 | 78.61 | 81.19 | 69.21 | 57.16 | 36.80 | 23.90 | 61.54 | |||||||||||||
YRS | 38 | 42 | 39 | 44 | 52 | 64 | 61 | 64 | 57 | 44 | 41 | 41 | 24 |