YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1940 | ----- | z | ----- | z | ----- | z | ----- | z | 68.68 | 77.37 | 79.42 | 82.52 | ----- | z | ----- | z | 46.10 | 44.84 | 66.49 | f | ||||||
1941 | 42.77 | 48.57 | 48.74 | 52.60 | 64.00 | 69.23 | 78.58 | 75.19 | 65.03 | 56.52 | 47.63 | 42.39 | 57.61 | |||||||||||||
1942 | 41.53 | a | 40.46 | 45.68 | 55.83 | 61.16 | ----- | z | 84.77 | a | 80.23 | 69.87 | 61.10 | 51.13 | 43.97 | 57.79 | a | |||||||||
1943 | 43.06 | 47.96 | 51.90 | 59.57 | 67.87 | 72.00 | 81.68 | 81.35 | 74.23 | 61.52 | 47.07 | 44.13 | 61.03 | |||||||||||||
1944 | 41.16 | 41.28 | 47.94 | 53.90 | 65.39 | 69.17 | 79.65 | 79.19 | 74.43 | 61.03 | 48.67 | 43.52 | 58.78 | |||||||||||||
1945 | 41.13 | 45.93 | 46.35 | 54.90 | 66.42 | 73.43 | 82.81 | 80.29 | 74.17 | 63.06 | 47.17 | 39.84 | 59.62 | |||||||||||||
1946 | 40.58 | 40.68 | 49.03 | 62.20 | 66.58 | 75.70 | 81.68 | 83.06 | 73.73 | 56.06 | 46.17 | 45.94 | 60.12 | |||||||||||||
1947 | 39.03 | 47.21 | 52.97 | 59.00 | 69.77 | 75.20 | 82.87 | 79.16 | 77.53 | 61.29 | 45.97 | 40.48 | 60.87 | |||||||||||||
1948 | 39.97 | 41.14 | 45.06 | 58.50 | 64.77 | 74.17 | 81.23 | 80.45 | 72.70 | 61.87 | 45.00 | 38.00 | 58.57 | |||||||||||||
1949 | 32.19 | 37.25 | 46.77 | 57.53 | 63.35 | 75.37 | 83.06 | 77.26 | 76.17 | 56.68 | 51.17 | 38.65 | 57.95 | |||||||||||||
1950 | 35.45 | 45.39 | 49.74 | 60.03 | 64.65 | 72.40 | 81.74 | 79.48 | 70.70 | 62.71 | 50.77 | 45.26 | 59.86 | |||||||||||||
1951 | 39.55 | 43.07 | 48.77 | 56.93 | 65.19 | 73.03 | 83.23 | 77.84 | 72.13 | 59.19 | 46.80 | 38.87 | 58.72 | |||||||||||||
1952 | 38.77 | 43.00 | 44.68 | 57.67 | 67.35 | 71.63 | 78.71 | 83.84 | 73.30 | 61.65 | 45.57 | 40.71 | 58.91 | |||||||||||||
1953 | 45.42 | 42.00 | 49.74 | 55.93 | 59.55 | 72.57 | 83.90 | 79.87 | 72.43 | 59.94 | 49.67 | 40.45 | 59.29 | |||||||||||||
1954 | 40.03 | 50.54 | 46.03 | 59.77 | 69.03 | 73.47 | 83.48 | 78.29 | 74.00 | 61.90 | 51.57 | 41.81 | 60.83 | |||||||||||||
1955 | 39.03 | 39.82 | 48.61 | 53.47 | 63.26 | 72.83 | 79.35 | 79.00 | 72.30 | 63.39 | 48.47 | 43.52 | 58.59 | |||||||||||||
1956 | 43.84 | 37.86 | 47.03 | 56.63 | 67.45 | 75.70 | 81.13 | 78.03 | 75.67 | 58.81 | 45.37 | 42.71 | 59.19 | |||||||||||||
1957 | 42.32 | 50.39 | 50.39 | 57.07 | 62.71 | 78.33 | 84.16 | 79.77 | 72.63 | 60.23 | 46.67 | 43.52 | 60.68 | |||||||||||||
1958 | 42.97 | 48.32 | 46.03 | 54.83 | 69.19 | 75.43 | 80.26 | 84.06 | 74.70 | 64.06 | 48.40 | 44.10 | 61.03 | |||||||||||||
1959 | 41.58 | 42.68 | 50.94 | 61.07 | 66.94 | 79.47 | 86.35 | 79.65 | 71.00 | 60.94 | 49.53 | 44.97 | 61.26 | |||||||||||||
1960 | 37.06 | 41.07 | 51.10 | 57.73 | 64.39 | 79.00 | 82.81 | 82.13 | 75.40 | 60.65 | 48.70 | 41.19 | 60.10 | |||||||||||||
1961 | 42.32 | 45.64 | 49.03 | 57.43 | 65.19 | 80.33 | 84.74 | 81.61 | 69.40 | 58.19 | 47.17 | 39.81 | 60.07 | |||||||||||||
1962 | 41.13 | 45.36 | 45.13 | 62.87 | 63.55 | 73.90 | 82.55 | 82.77 | 76.10 | 61.65 | 51.60 | 44.10 | 60.89 | |||||||||||||
1963 | 37.81 | 49.93 | 49.03 | 53.43 | 68.71 | 72.97 | 83.58 | 82.52 | 74.63 | 63.58 | 51.17 | 40.39 | 60.65 | |||||||||||||
1964 | 37.29 | 39.52 | 46.65 | 55.20 | 63.68 | 73.77 | 83.90 | 81.39 | 72.40 | 65.55 | 46.50 | 42.81 | 59.05 | |||||||||||||
1965 | 43.48 | 45.07 | 47.90 | 55.37 | 63.23 | 69.70 | 81.90 | 80.71 | 68.53 | 60.87 | 51.97 | 43.35 | 59.34 | |||||||||||||
1966 | 38.19 | 41.04 | 50.48 | 59.43 | 69.90 | 75.77 | 82.58 | 84.26 | 76.10 | 60.10 | 50.23 | 43.71 | 60.98 | |||||||||||||
1967 | 41.48 | 44.86 | 52.39 | 50.53 | 65.58 | 73.20 | 84.97 | 83.52 | 75.43 | 63.61 | 51.87 | 39.52 | 60.58 | |||||||||||||
1968 | 41.48 | 50.86 | 52.00 | 56.37 | 66.10 | 75.00 | 80.55 | 77.77 | 73.27 | 60.90 | 50.63 | 36.29 | 60.10 | |||||||||||||
1969 | 46.10 | 43.75 | 47.32 | 58.77 | 68.87 | 74.17 | 84.06 | 86.13 | 75.10 | 59.74 | 52.17 | 43.52 | 61.64 | |||||||||||||
1970 | 40.58 | 48.07 | 50.06 | 51.90 | 67.10 | 76.03 | 84.45 | 83.13 | 71.00 | 58.74 | 50.03 | 40.71 | 60.15 | |||||||||||||
1971 | 40.68 | 45.00 | 49.94 | 55.67 | 62.19 | 74.97 | 85.58 | 80.26 | 72.60 | 56.13 | 47.00 | 39.65 | 59.14 | |||||||||||||
1972 | 37.23 | 45.55 | 56.58 | 58.77 | 67.06 | 77.73 | 84.48 | 80.35 | 72.10 | 59.39 | 45.33 | 38.45 | 60.25 | |||||||||||||
1973 | 37.71 | 45.21 | 45.13 | 54.67 | 67.84 | 76.50 | 82.77 | 79.03 | 71.23 | 60.26 | 48.33 | 43.81 | 59.37 | |||||||||||||
1974 | 40.42 | 45.00 | 53.32 | 57.30 | 68.74 | 79.73 | 82.48 | 80.06 | 76.67 | 62.61 | 50.10 | 39.58 | 61.34 | |||||||||||||
1975 | 39.81 | 42.14 | 47.52 | 51.67 | 63.77 | 75.30 | 84.55 | 79.84 | 74.30 | 59.68 | 47.63 | 43.84 | 59.17 | |||||||||||||
1976 | 41.84 | 47.83 | 47.87 | 54.40 | 69.26 | 74.53 | 83.77 | 77.81 | 71.50 | 60.39 | 49.83 | 40.32 | 59.95 | |||||||||||||
1977 | 42.13 | 46.50 | 46.32 | 58.97 | 61.42 | 78.77 | 84.03 | 82.58 | 73.27 | 66.08 | r | 49.97 | 46.45 | 60.95 | a | |||||||||||
1978 | 43.94 | 47.07 | 52.87 | a | 54.90 | 63.87 | 76.47 | 82.35 | 79.23 | 71.83 | 63.71 | 47.73 | 36.90 | 60.07 | ||||||||||||
1979 | 37.19 | 40.54 | 48.52 | 54.47 | 65.82 | c | 73.67 | 80.45 | 78.06 | 76.20 | 63.13 | 48.04 | b | 43.07 | c | 59.10 | ||||||||||
1980 | 46.77 | a | 48.48 | 48.06 | 54.87 | 62.26 | 73.48 | a | 83.97 | a | 82.08 | f | 74.27 | 61.10 | b | 50.27 | 47.68 | 59.20 | a | |||||||
1981 | 46.10 | 46.07 | 51.55 | 63.13 | 68.26 | d | 81.03 | 86.39 | 84.32 | 75.97 | 59.84 | 52.41 | a | 44.89 | c | 63.33 | ||||||||||
1982 | 40.80 | a | 47.43 | 50.29 | 57.03 | a | 66.39 | 73.93 | 82.14 | b | 82.08 | f | 72.97 | a | 57.84 | 48.57 | 41.64 | c | 58.09 | a | ||||||
1983 | 43.60 | a | 46.75 | 51.10 | 52.97 | a | 64.53 | a | 74.33 | 82.42 | 78.48 | b | 77.30 | 61.68 | 51.41 | c | 43.83 | b | 60.70 | |||||||
1984 | 43.90 | 45.48 | 50.13 | 56.54 | b | 72.35 | 76.63 | 82.90 | 81.03 | 75.97 | 58.13 | 47.23 | 42.52 | 61.07 | ||||||||||||
1985 | 42.06 | 43.93 | 48.81 | 59.70 | 67.90 | 77.60 | 84.52 | 81.55 | 66.40 | 61.16 | 47.07 | 43.74 | 60.37 | |||||||||||||
1986 | 46.10 | 49.14 | 54.16 | 58.87 | 68.06 | 78.33 | c | 80.54 | c | 84.21 | b | 68.47 | k | 59.00 | l | 51.32 | h | 42.59 | i | 64.93 | d | |||||
1987 | 39.00 | j | 45.20 | h | 47.29 | j | 59.45 | j | 67.04 | h | 75.55 | j | 77.55 | k | 81.35 | k | 71.86 | b | 63.93 | b | 50.47 | 38.29 | j | 62.08 | i | |
1988 | 41.29 | 45.79 | 49.71 | 56.93 | 66.35 | 77.33 | 85.52 | 78.84 | 71.10 | 66.19 | 50.47 | 42.32 | 60.99 | |||||||||||||
1989 | 40.87 | 44.68 | 54.77 | 63.07 | 67.97 | 76.50 | 84.94 | 80.90 | 73.20 | 60.52 | 52.50 | 40.94 | 61.74 | |||||||||||||
1990 | 40.68 | 43.07 | 52.77 | 60.87 | 66.48 | 77.83 | 83.77 | 79.94 | 75.20 | 61.65 | 50.37 | 36.52 | 60.76 | |||||||||||||
1991 | 40.32 | 49.00 | 45.45 | 55.30 | 62.35 | 72.77 | 81.29 | 81.35 | 74.33 | 63.77 | 49.90 | 42.87 | 59.89 | |||||||||||||
1992 | 41.84 | 48.69 | 50.94 | 58.97 | 68.61 | 74.67 | 81.61 | 82.48 | 75.13 | 62.94 | 47.10 | 39.29 | 61.02 | |||||||||||||
1993 | 42.81 | 45.57 | 51.23 | 57.27 | 67.35 | 72.77 | 80.29 | 80.13 | 71.57 | 60.77 | 44.67 | 40.26 | 59.56 | |||||||||||||
1994 | 42.19 | 43.36 | 54.65 | 60.07 | 66.58 | 80.33 | 84.23 | 85.68 | 76.47 | 58.87 | 44.53 | 44.45 | 61.78 | |||||||||||||
1995 | 44.97 | 51.36 | 51.71 | 57.03 | 64.13 | 73.27 | 82.68 | 84.42 | 78.30 | 61.26 | 53.77 | 44.19 | 62.26 | |||||||||||||
1996 | 44.13 | 51.17 | 53.16 | 60.87 | 69.23 | 77.67 | 86.65 | 84.87 | 74.23 | 61.90 | 52.45 | a | 44.65 | 63.41 | ||||||||||||
1997 | 46.32 | 46.57 | 54.03 | 59.33 | 73.77 | 76.93 | 81.00 | 84.65 | 77.40 | 60.74 | 51.17 | 43.19 | 62.93 | |||||||||||||
1998 | 43.81 | 45.25 | 50.06 | 52.83 | 62.52 | 72.37 | 84.97 | 84.39 | 74.27 | 61.03 | 49.43 | 43.35 | 60.36 | |||||||||||||
1999 | 45.48 | 47.07 | 52.68 | 55.23 | 66.52 | 75.93 | 82.71 | 82.48 | 76.07 | 62.42 | 52.23 | 44.90 | 61.98 | |||||||||||||
2000 | 47.06 | 49.28 | 52.00 | 62.80 | 72.16 | 80.50 | 84.29 | 84.68 | 74.17 | 62.32 | 45.50 | 45.03 | 63.32 | |||||||||||||
2001 | 42.52 | 44.64 | 52.00 | 56.60 | 72.58 | 78.50 | b | 82.29 | 84.26 | 77.53 | 65.23 | 53.87 | 40.06 | 62.51 | ||||||||||||
2002 | 41.61 | 45.14 | 48.55 | 60.83 | 66.68 | 78.70 | 87.16 | 81.81 | 75.67 | 60.65 | 52.33 | 42.74 | 61.82 | |||||||||||||
2003 | 48.35 | 47.11 | 50.87 | 56.17 | 69.13 | 77.97 | 86.97 | 84.00 | 76.37 | 68.77 | 47.93 | 42.00 | 62.97 | |||||||||||||
2004 | 43.39 | 44.66 | 59.58 | 61.20 | 70.52 | 77.50 | 84.06 | 81.29 | 74.20 | 63.52 | 50.53 | 46.84 | 63.11 | |||||||||||||
2005 | 47.94 | 49.89 | 52.16 | 57.90 | 69.97 | 77.77 | 87.06 | 83.10 | 74.60 | 65.52 | 53.53 | 44.19 | 63.64 | |||||||||||||
2006 | 44.84 | 48.57 | 49.42 | 60.40 | 72.94 | 82.53 | 89.03 | 84.84 | 73.43 | 61.46 | c | 51.50 | 41.77 | 63.40 | ||||||||||||
2007 | 39.84 | 47.18 | 54.84 | 61.07 | 70.55 | 77.77 | 85.87 | 86.81 | 76.60 | 61.87 | 54.23 | 41.00 | 63.13 | |||||||||||||
2008 | 41.74 | 44.72 | 51.45 | 59.10 | 65.58 | 77.73 | 86.32 | 83.68 | 76.20 | 63.00 | 54.60 | 42.68 | 62.23 | |||||||||||||
2009 | 46.94 | 45.64 | 50.23 | 57.37 | 74.39 | 76.20 | 86.94 | 80.81 | 77.17 | 59.87 | 51.33 | 41.48 | 62.36 | |||||||||||||
2010 | 44.97 | 48.00 | 49.81 | 55.50 | 64.35 | 77.30 | 87.68 | 82.52 | 74.17 | 64.71 | 50.37 | 47.32 | 62.22 | |||||||||||||
2011 | 43.68 | 43.36 | 52.68 | 58.90 | 64.42 | 76.40 | 83.87 | 86.06 | 76.30 | 63.65 | 50.17 | 41.45 | 61.74 | |||||||||||||
2012 | 44.97 | 47.66 | 52.13 | 61.13 | 71.52 | 79.77 | 83.94 | 86.39 | 78.70 | 64.29 | 52.73 | 44.55 | 63.98 | |||||||||||||
2013 | 42.45 | 44.79 | 56.13 | 61.23 | 71.10 | 81.47 | 88.13 | 81.39 | 74.07 | 58.84 | 52.20 | 44.10 | 62.99 | |||||||||||||
2014 | 47.29 | 50.25 | 55.94 | 61.87 | 70.74 | 79.50 | 85.39 | 81.03 | 77.47 | 66.19 | 52.37 | 46.94 | 64.58 | |||||||||||||
2015 | 48.19 | 51.68 | 58.81 | 60.20 | 66.77 | 81.70 | 82.74 | 86.58 | 80.63 | 68.55 | 48.87 | 41.23 | 64.66 | |||||||||||||
2016 | 44.32 | 51.24 | 55.00 | 62.00 | 68.61 | 83.90 | 87.16 | 83.81 | 75.87 | 68.50 | q | 55.23 | 46.23 | 64.85 | a | |||||||||||
2017 | 47.16 | 53.50 | 57.61 | 62.53 | 68.61 | 82.20 | 89.13 | 85.87 | 76.67 | 64.97 | 57.57 | 47.35 | 66.10 | |||||||||||||
2018 | 49.00 | 47.39 | 55.06 | 65.53 | 72.45 | 82.10 | a | 88.48 | 88.97 | 81.37 | 65.74 | 52.20 | 45.74 | 66.17 | ||||||||||||
2019 | 46.42 | 43.96 | 53.48 | 63.17 | 64.71 | 78.93 | 86.29 | 85.48 | 75.60 | 59.87 | a | 51.37 | 45.68 | 62.91 | ||||||||||||
2020 | 43.94 | 45.21 | 53.00 | 60.03 | 71.48 | 76.97 | 85.35 | 87.26 | 76.57 | 62.19 | 49.63 | 43.03 | 62.89 | |||||||||||||
2021 | 44.93 | b | 47.32 | 49.77 | 63.23 | 70.10 | 82.53 | 88.52 | 85.19 | 78.63 | 60.08 | e | 54.92 | e | 45.23 | 64.20 | ||||||||||
2022 | 44.68 | 47.07 | 53.74 | 62.43 | 69.97 | a | 81.27 | 86.48 | 84.00 | 80.57 | 65.06 | 47.47 | 43.73 | a | 63.87 | |||||||||||
2023 | 43.52 | 43.18 | 49.26 | 57.80 | 69.39 | 73.63 | 88.77 | 83.13 | 74.17 | 64.97 | 51.80 | 45.23 | 62.07 | |||||||||||||
2024 | 43.06 | 49.00 | 52.23 | 58.13 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.10 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 42.47 | 45.82 | 50.68 | 58.01 | 67.11 | 76.40 | 83.84 | 82.03 | 74.42 | 61.72 | 49.80 | 42.71 | 61.24 | |||||||||||||
S.D. | 3.19 | 3.33 | 3.27 | 3.21 | 3.19 | 3.24 | 2.51 | 2.76 | 2.85 | 2.60 | 2.76 | 2.58 | 1.86 | |||||||||||||
SKEW | -0.32 | -0.24 | 0.33 | -0.05 | 0.06 | 0.10 | 0.12 | 0.08 | -0.45 | 0.24 | 0.12 | -0.36 | 0.45 | |||||||||||||
MAX | 49.00 | 53.50 | 59.58 | 65.53 | 74.39 | 83.90 | 89.13 | 88.97 | 81.37 | 68.77 | 57.57 | 47.68 | 66.17 | |||||||||||||
MIN | 32.19 | 37.25 | 44.68 | 50.53 | 59.55 | 69.17 | 78.58 | 75.19 | 65.03 | 56.06 | 44.53 | 36.29 | 57.61 | |||||||||||||
YRS | 83 | 83 | 83 | 82 | 83 | 82 | 83 | 81 | 82 | 80 | 83 | 82 | 76 |