YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1941 | ----- | z | ----- | z | 32.03 | 40.14 | a | 45.53 | a | 52.17 | 64.42 | 58.32 | 45.33 | 38.16 | ----- | z | 27.10 | 44.80 | c | |||||||
1942 | ----- | z | 26.32 | 28.84 | 38.73 | 44.29 | 51.27 | 59.97 | 62.16 | 51.33 | ----- | z | 26.77 | 19.06 | 40.87 | b | ||||||||||
1943 | 10.07 | a | 26.43 | 28.71 | 41.20 | 44.42 | 51.30 | 60.61 | 56.90 | 51.73 | 40.27 | a | 31.76 | e | 21.19 | 38.72 | ||||||||||
1944 | 16.94 | 25.97 | 27.70 | a | 38.83 | 46.93 | a | 54.33 | 62.10 | 59.21 | l | 51.60 | 43.55 | 30.93 | a | 24.44 | m | 39.89 | b | |||||||
1945 | ----- | z | ----- | z | 30.48 | 35.60 | 47.48 | 52.97 | 61.13 | 59.06 | ----- | z | 37.87 | a | 24.57 | 23.32 | 41.39 | c | ||||||||
1946 | 19.87 | 24.14 | 31.20 | a | 37.37 | 48.26 | 51.17 | 60.42 | 59.00 | 47.60 | 33.26 | 21.17 | 21.83 | a | 37.94 | |||||||||||
1947 | 13.03 | 24.75 | 32.19 | 38.43 | 51.10 | a | 52.21 | a | 56.23 | 55.20 | a | 48.10 | 41.07 | a | 29.13 | 22.20 | a | 38.64 | ||||||||
1948 | 19.41 | d | 19.85 | b | 26.65 | 31.60 | 43.34 | b | 56.31 | a | 55.50 | a | 54.03 | 46.63 | 36.48 | 26.97 | 8.16 | 35.41 | ||||||||
1949 | -5.71 | 14.46 | 31.48 | 37.33 | 49.74 | 52.57 | 55.97 | ----- | z | 49.63 | 33.57 | a | 33.27 | 21.58 | 33.99 | a | ||||||||||
1950 | -5.35 | 17.39 | 27.94 | 33.33 | 41.76 | b | 51.32 | b | 57.83 | b | 57.45 | b | 47.62 | a | 37.16 | 27.73 | 26.29 | 35.04 | ||||||||
1951 | 19.29 | 23.23 | b | 24.03 | 36.90 | 44.48 | 51.76 | a | 58.48 | 58.35 | 49.17 | a | 39.22 | d | 28.10 | 15.17 | a | 37.35 | ||||||||
1952 | 9.74 | 21.14 | 28.61 | 38.20 | 46.77 | 52.90 | 58.77 | a | ----- | z | 50.67 | 42.77 | 23.23 | 26.06 | 36.26 | a | ||||||||||
1953 | 29.84 | 28.25 | 29.90 | 35.97 | 42.61 | 48.17 | 56.74 | 56.03 | 49.47 | 39.42 | 32.07 | 26.52 | 39.58 | |||||||||||||
1954 | 16.53 | a | 28.18 | 26.35 | 32.71 | b | 46.81 | 48.40 | 55.10 | 54.35 | 47.67 | 34.10 | 34.27 | 23.52 | 37.33 | |||||||||||
1955 | 19.19 | 20.82 | 23.87 | 32.30 | 41.29 | 52.76 | a | 55.45 | 56.68 | 46.70 | 38.45 | 17.55 | a | 12.87 | a | 34.83 | ||||||||||
1956 | 18.45 | 10.45 | 26.68 | 39.63 | 48.19 | 49.30 | 58.87 | 54.67 | a | 48.63 | 35.48 | 26.31 | a | 19.45 | b | 36.34 | ||||||||||
1957 | 4.48 | 18.18 | 28.87 | 39.00 | a | 51.26 | 52.57 | 51.68 | 52.00 | a | 50.20 | 36.55 | 26.97 | 26.03 | a | 36.48 | ||||||||||
1958 | 27.41 | b | 34.21 | 31.32 | 35.97 | 50.97 | 57.13 | 59.81 | 59.90 | 46.93 | 36.68 | 28.00 | 25.50 | a | 41.15 | |||||||||||
1959 | 22.29 | 22.70 | a | 30.55 | 38.79 | a | 41.84 | 51.50 | 57.42 | 51.63 | a | 47.07 | 37.06 | 21.30 | 22.30 | a | 37.04 | |||||||||
1960 | 13.74 | 25.10 | 28.06 | 35.70 | 40.26 | 49.03 | 58.87 | 52.94 | 46.83 | 35.97 | 26.53 | 17.26 | 35.86 | |||||||||||||
1961 | 24.03 | 32.18 | 33.16 | 37.80 | 43.94 | 53.63 | 58.00 | y | 60.26 | 45.87 | 34.90 | 22.53 | 20.71 | 37.18 | a | |||||||||||
1962 | 19.16 | 27.61 | 27.81 | 38.33 | 42.90 | 51.85 | j | 54.75 | c | 52.45 | 47.73 | 38.19 | 32.20 | 28.19 | 37.21 | a | ||||||||||
1963 | 13.52 | 28.39 | 29.90 | 36.54 | b | 43.74 | 52.67 | 53.48 | 54.81 | 50.13 | 38.58 | 29.80 | 19.74 | 37.61 | ||||||||||||
1964 | 20.16 | 20.97 | 27.52 | 34.50 | 41.42 | 48.50 | 51.83 | a | 49.81 | 43.87 | 35.65 | 29.17 | 14.71 | 34.84 | ||||||||||||
1965 | 17.74 | 24.82 | 26.39 | 38.20 | 42.58 | 50.73 | 54.48 | 56.00 | ----- | z | 36.45 | 31.60 | 21.87 | a | 36.44 | a | ||||||||||
1966 | 15.77 | a | 24.75 | 29.47 | a | 36.97 | 44.16 | 48.10 | 53.84 | 54.77 | a | 49.90 | a | 34.21 | b | 31.47 | 27.70 | a | 37.59 | |||||||
1967 | 26.84 | 26.39 | 26.58 | 32.63 | 43.03 | 52.60 | 54.94 | 54.77 | 49.13 | 36.19 | 27.37 | 19.77 | 37.52 | |||||||||||||
1968 | 20.65 | 28.10 | 31.55 | 33.48 | a | 44.13 | 50.37 | 54.97 | 51.06 | 46.07 | 34.55 | 29.77 | 18.84 | 36.96 | ||||||||||||
1969 | 5.10 | 17.61 | 29.61 | 37.73 | 47.55 | 56.10 | 52.81 | 48.58 | 46.37 | 32.61 | 25.80 | 26.16 | 35.50 | |||||||||||||
1970 | 17.81 | 28.14 | 30.23 | 35.10 | 44.33 | a | 54.67 | 55.71 | 52.35 | 41.83 | 34.90 | 27.63 | 11.74 | 36.20 | ||||||||||||
1971 | 14.83 | a | 25.32 | 25.26 | 34.13 | 47.19 | 47.30 | 55.00 | 56.52 | 41.40 | 33.80 | a | 28.53 | 12.90 | a | 35.18 | ||||||||||
1972 | 15.97 | 25.00 | 31.58 | 33.67 | 44.45 | 51.80 | 53.94 | 55.61 | 42.03 | 34.00 | 32.87 | 18.97 | 36.66 | |||||||||||||
1973 | 19.00 | 27.68 | 32.61 | 36.97 | 44.39 | 50.13 | 56.65 | 53.97 | 47.73 | 37.10 | 25.50 | 27.94 | 38.30 | |||||||||||||
1974 | 17.29 | 27.86 | 30.61 | 39.00 | 41.84 | 51.83 | 53.42 | 54.20 | a | 47.53 | 33.65 | 32.70 | 25.48 | 37.95 | ||||||||||||
1975 | 14.81 | 20.15 | a | 29.39 | 33.70 | 43.97 | 49.43 | 59.23 | 53.42 | 47.63 | 38.26 | 27.47 | 23.26 | 36.73 | ||||||||||||
1976 | 20.52 | 25.76 | 27.48 | 37.73 | 43.65 | 47.00 | 54.55 | 52.29 | 49.03 | 34.60 | a | 26.23 | 19.76 | b | 36.55 | |||||||||||
1977 | 17.23 | 26.57 | 30.77 | 40.23 | 43.65 | 55.20 | 54.55 | 59.03 | 45.10 | 36.26 | 27.20 | 24.39 | 38.35 | |||||||||||||
1978 | 24.71 | 28.93 | 34.06 | 39.03 | 43.74 | 52.47 | 55.94 | 54.35 | 47.27 | 34.03 | 24.07 | 16.94 | 37.96 | |||||||||||||
1979 | 4.94 | 22.68 | 31.03 | 36.53 | 47.52 | 52.17 | 56.26 | 56.42 | 49.97 | 41.61 | 26.13 | 27.68 | 37.74 | |||||||||||||
1980 | 9.48 | 26.57 | a | 31.29 | 40.47 | 46.80 | a | 49.00 | 54.81 | 51.90 | 47.27 | 35.84 | 31.89 | b | 25.55 | 37.57 | ||||||||||
1981 | 31.42 | 27.75 | 31.77 | 34.53 | 44.03 | 46.87 | 51.40 | a | 55.00 | 44.30 | 34.06 | 31.00 | 19.63 | d | 37.65 | |||||||||||
1982 | ----- | z | 24.07 | 28.65 | 30.27 | 42.03 | 52.83 | 52.66 | b | 53.13 | 46.00 | 33.71 | 24.40 | 17.86 | b | 36.87 | a | |||||||||
1983 | 26.17 | b | 28.41 | a | 34.42 | 34.86 | a | 46.00 | 49.80 | 53.61 | 57.19 | 45.27 | 36.43 | a | 33.07 | b | 11.77 | 38.08 | ||||||||
1984 | 21.58 | 28.86 | 33.48 | 35.93 | 40.73 | a | 48.97 | 55.32 | 54.23 | 43.80 | 31.43 | a | 27.97 | a | 7.47 | a | 35.81 | |||||||||
1985 | 16.84 | 7.64 | 26.87 | 37.63 | 45.23 | 49.47 | 58.97 | 51.55 | 42.83 | 35.23 | 13.00 | 10.17 | a | 32.95 | ||||||||||||
1986 | 18.17 | a | 22.27 | b | 33.26 | 35.53 | 47.16 | 58.00 | 54.19 | 61.06 | 48.57 | 39.23 | 31.97 | 23.87 | a | 39.44 | ||||||||||
1987 | 18.65 | 28.79 | 34.77 | 41.47 | 48.39 | 53.07 | 56.52 | 55.77 | 49.33 | 36.48 | 30.37 | 21.77 | a | 39.61 | ||||||||||||
1988 | 18.10 | a | 25.97 | 31.94 | 39.41 | a | 45.39 | 51.13 | 57.03 | 54.52 | 46.43 | 42.30 | a | 32.43 | 21.42 | 38.84 | ||||||||||
1989 | 23.74 | 18.12 | b | 31.24 | b | 40.83 | 45.60 | a | 55.27 | 55.47 | a | 55.27 | a | 47.59 | a | 39.29 | 33.57 | 26.35 | 39.36 | |||||||
1990 | 29.39 | 22.46 | 32.00 | a | 42.07 | 45.45 | 51.66 | a | 61.97 | 57.74 | 52.73 | 37.58 | 32.17 | 14.42 | 39.97 | |||||||||||
1991 | 17.87 | 30.39 | 29.77 | a | 39.55 | a | 46.17 | a | 50.07 | 58.39 | 59.29 | 51.73 | 37.48 | 31.93 | 28.61 | 40.10 | ||||||||||
1992 | 28.45 | 32.38 | 36.03 | 39.80 | 47.03 | a | 58.17 | 57.61 | 57.48 | 46.80 | 40.45 | 33.07 | a | 13.45 | 40.89 | |||||||||||
1993 | 13.90 | a | 21.00 | b | 30.13 | 37.53 | 49.03 | b | 52.97 | 53.87 | 55.68 | 48.80 | 38.68 | 21.45 | a | 27.52 | 37.55 | |||||||||
1994 | 28.87 | 27.15 | a | 33.42 | 43.27 | 48.65 | 51.73 | 60.42 | 57.71 | 51.48 | a | 38.94 | 26.59 | a | 25.94 | 41.18 | ||||||||||
1995 | 25.97 | 31.43 | 31.42 | 38.20 | 48.68 | 51.86 | a | 59.50 | a | 52.42 | 51.10 | 38.35 | 31.87 | 25.87 | 40.56 | |||||||||||
1996 | 17.45 | 20.90 | 31.94 | 38.23 | 42.58 | 50.93 | 58.35 | 55.16 | 47.38 | a | 37.81 | 23.93 | a | 16.14 | c | 36.73 | ||||||||||
1997 | 17.87 | a | 22.96 | 31.93 | a | 36.50 | 48.39 | 52.37 | 56.81 | 58.50 | a | 49.93 | 38.65 | 31.72 | a | 24.26 | 39.16 | |||||||||
1998 | 22.52 | 31.41 | a | 33.94 | 36.67 | 47.97 | a | 54.03 | 63.55 | b | 59.26 | 51.53 | 35.38 | b | 33.77 | 22.00 | 41.00 | |||||||||
1999 | 28.97 | 29.25 | 32.26 | 36.03 | 42.58 | 52.50 | 55.71 | 59.32 | 46.70 | 38.20 | a | 35.50 | 29.37 | a | 40.53 | |||||||||||
2000 | 21.19 | 29.59 | 33.29 | 40.60 | 46.48 | 53.73 | 56.35 | 56.23 | 46.43 | 38.43 | a | 25.33 | 20.39 | 39.00 | ||||||||||||
2001 | 25.32 | 25.14 | 33.63 | a | 38.17 | 45.71 | 51.00 | 58.68 | 57.83 | a | 51.53 | 39.10 | 33.53 | 27.13 | 40.56 | |||||||||||
2002 | 28.17 | a | 25.57 | 27.87 | 37.27 | 43.45 | 53.73 | 60.16 | 56.00 | 48.67 | 33.90 | 29.00 | 30.58 | 39.53 | ||||||||||||
2003 | 30.13 | 28.14 | 33.42 | 37.70 | 45.45 | 55.50 | 60.03 | 58.23 | 52.63 | 41.94 | 24.80 | 23.42 | 40.95 | |||||||||||||
2004 | 23.16 | 28.14 | 34.87 | 39.23 | 47.29 | 54.37 | 61.58 | 59.35 | 49.07 | 40.58 | 27.40 | 28.03 | 41.09 | |||||||||||||
2005 | 21.84 | 24.11 | 33.00 | 39.60 | 49.74 | 52.73 | 58.42 | 58.16 | 48.93 | 40.94 | 30.23 | d | 19.38 | b | 39.76 | |||||||||||
2006 | 29.73 | a | 24.93 | 31.77 | 39.07 | 45.90 | 54.43 | 62.20 | a | 56.84 | 48.70 | 38.77 | 28.60 | 20.87 | 40.15 | |||||||||||
2007 | 18.90 | 29.18 | 33.00 | 37.82 | b | 47.52 | 51.73 | 62.74 | 56.77 | 49.53 | 36.90 | 28.90 | 21.65 | 39.55 | ||||||||||||
2008 | 11.35 | 26.25 | a | 29.10 | 33.43 | 49.38 | b | 52.37 | 58.48 | b | 56.03 | 47.38 | a | 38.94 | 32.37 | 17.05 | l | 39.55 | a | |||||||
2009 | 20.03 | a | 26.68 | 29.13 | 39.37 | 47.10 | b | 56.17 | 61.03 | 58.06 | 52.13 | 38.47 | a | 31.26 | c | 20.90 | a | 40.03 | ||||||||
2010 | 33.17 | h | 38.42 | d | 46.58 | 45.59 | a | 45.23 | 53.30 | 59.42 | 59.21 | b | 51.93 | 40.35 | 26.60 | 27.42 | 44.91 | a | ||||||||
2011 | 28.32 | 30.71 | 33.81 | 33.93 | 43.19 | 50.80 | 55.29 | 57.68 | 49.07 | c | 40.00 | 24.87 | 19.90 | 38.97 | ||||||||||||
2012 | 18.35 | 28.68 | a | 30.58 | 38.23 | 45.45 | 49.23 | 58.74 | 56.16 | 48.13 | 37.06 | 33.47 | 26.71 | 39.23 | ||||||||||||
2013 | 21.90 | 28.07 | a | 32.76 | b | 39.66 | a | 49.03 | b | 53.70 | c | 62.48 | 60.30 | a | 55.31 | a | 36.52 | 27.63 | 15.55 | 40.24 | ||||||
2014 | 23.19 | 21.61 | 29.35 | 37.76 | a | 48.68 | 55.23 | 63.00 | 61.61 | 50.53 | 41.55 | 25.37 | 27.03 | 40.41 | ||||||||||||
2015 | 25.26 | 31.11 | 32.48 | 40.00 | 49.00 | q | 63.12 | n | 63.50 | s | 60.64 | t | 46.64 | s | 39.55 | 23.37 | 21.71 | q | 31.96 | f | ||||||
2016 | 26.47 | p | 30.46 | p | 34.26 | l | 44.75 | r | 48.40 | u | 53.08 | r | ----- | z | 57.69 | r | 47.36 | p | 36.67 | y | 37.67 | 17.13 | 27.40 | j | ||
2017 | 16.03 | 21.71 | 31.94 | 36.60 | 48.58 | 55.37 | 62.97 | 61.74 | 51.27 | 37.90 | 28.80 | 22.29 | 39.60 | |||||||||||||
2018 | 30.23 | 27.39 | 35.42 | 39.17 | 47.16 | 53.60 | 61.64 | c | 59.10 | 49.47 | 40.06 | 31.43 | 29.03 | 41.98 | ||||||||||||
2019 | 28.71 | 17.96 | 28.10 | 43.10 | 52.71 | 56.13 | 60.19 | 61.68 | 50.83 | 34.26 | 29.43 | ----- | z | 42.10 | a | |||||||||||
2020 | ----- | z | 29.83 | 34.77 | 41.60 | ----- | z | 54.60 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.20 | h | ||||
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.55 | t | ----- | z | 38.55 | t | 32.25 | j | 22.20 | a | 22.20 | k |
2022 | 18.65 | 21.96 | 34.42 | 33.83 | 43.35 | 53.60 | 62.58 | 63.06 | 52.87 | 43.42 | 22.27 | 13.58 | 38.63 | |||||||||||||
2023 | ----- | z | ----- | z | 33.13 | 38.40 | 53.71 | 57.97 | 62.84 | 60.16 | 51.00 | 41.39 | 30.43 | 33.17 | a | 46.22 | b | |||||||||
2024 | 23.46 | e | 35.61 | a | 33.74 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.94 | i |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 19.45 | 25.43 | 30.94 | 37.52 | 45.80 | 52.33 | 57.65 | 56.39 | 48.40 | 37.50 | 28.49 | 21.69 | 38.31 | |||||||||||||
S.D. | 7.46 | 5.08 | 3.22 | 2.82 | 2.85 | 2.58 | 3.24 | 3.07 | 2.74 | 2.73 | 4.20 | 5.50 | 1.95 | |||||||||||||
SKEW | -1.00 | -0.73 | 1.07 | -0.08 | 0.37 | 0.09 | 0.13 | -0.12 | -0.31 | 0.12 | -0.77 | -0.52 | -0.35 | |||||||||||||
MAX | 31.42 | 38.42 | 46.58 | 45.59 | 53.71 | 58.17 | 64.42 | 63.06 | 55.31 | 43.55 | 37.67 | 33.17 | 41.98 | |||||||||||||
MIN | -5.71 | 7.64 | 23.87 | 30.27 | 40.26 | 46.87 | 51.40 | 48.58 | 41.40 | 31.43 | 13.00 | 7.47 | 32.95 | |||||||||||||
YRS | 75 | 79 | 82 | 81 | 79 | 79 | 78 | 76 | 77 | 79 | 80 | 78 | 65 |