YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1898 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 104.00 | q | 99.00 | 95.00 | 85.00 | 72.00 | ----- | z | ||||
1899 | 72.00 | 78.00 | 85.00 | 89.00 | 98.00 | 104.00 | 105.00 | j | ----- | z | ----- | z | 94.00 | 80.00 | 72.00 | ----- | z | |||||||||
1900 | 79.00 | 79.00 | 89.00 | 90.00 | 100.00 | 111.00 | 109.00 | 102.00 | p | 100.00 | g | 92.00 | 79.00 | e | 69.00 | ----- | z | |||||||||
1901 | 73.00 | 79.00 | a | ----- | z | 90.00 | d | 94.00 | e | 108.00 | 109.00 | 104.00 | 102.00 | 95.00 | 80.00 | 74.00 | ----- | z | ||||||||
1902 | 69.00 | 77.00 | 78.00 | a | 95.00 | b | 99.00 | a | 112.00 | 108.00 | 107.00 | 102.00 | a | 93.00 | 80.00 | 72.00 | 112.00 | e | ||||||||
1903 | 70.00 | 72.00 | f | 83.00 | ----- | z | ----- | z | ----- | z | ----- | z | 105.00 | s | 104.00 | 95.00 | 83.00 | 75.00 | ----- | z | ||||||
1904 | 71.00 | 87.00 | 85.00 | 94.00 | 100.00 | a | 107.00 | 108.00 | 102.00 | d | 96.00 | c | 94.00 | b | 78.00 | d | 73.00 | a | 108.00 | o | ||||||
1905 | 69.00 | d | 73.00 | b | 80.00 | b | 88.00 | a | 98.00 | a | 100.00 | 107.00 | 100.00 | 95.00 | o | 90.00 | 75.00 | 64.00 | 107.00 | y | ||||||
1906 | 68.00 | 81.00 | 85.00 | 87.00 | 93.00 | 102.00 | h | 107.00 | 101.00 | 100.00 | h | 95.00 | 87.00 | 70.00 | 107.00 | p | ||||||||||
1907 | 71.00 | 80.00 | 93.00 | 92.00 | ----- | z | 103.00 | 108.00 | 103.00 | 96.00 | 85.00 | e | 75.00 | 67.00 | ----- | z | ||||||||||
1908 | 70.00 | l | 78.00 | a | 83.00 | 87.00 | 90.00 | i | 101.00 | 102.00 | 97.00 | 98.00 | ----- | z | 85.00 | 66.00 | b | ----- | z | |||||||
1909 | 75.00 | 72.00 | 77.00 | 90.00 | 95.00 | 104.00 | ----- | z | ----- | z | 100.00 | 96.00 | 86.00 | 70.00 | ----- | z | ||||||||||
1910 | 71.00 | 77.00 | 91.00 | a | 95.00 | 107.00 | 105.00 | 109.00 | 102.00 | 100.00 | ----- | z | 82.00 | 73.00 | ----- | z | ||||||||||
1911 | 80.00 | 79.00 | ----- | z | ----- | z | 101.00 | f | 105.00 | 103.00 | ----- | z | 100.00 | 90.00 | b | 77.00 | a | 74.00 | ----- | z | ||||||
1912 | 74.00 | 77.00 | 84.00 | 93.00 | 105.00 | a | 111.00 | h | 113.00 | c | 106.00 | 100.00 | 90.00 | a | 84.00 | 72.00 | 113.00 | m | ||||||||
1913 | 70.00 | 76.00 | 93.00 | e | 93.00 | d | 104.00 | a | 105.00 | d | 112.00 | 105.00 | 101.00 | a | 97.00 | 82.00 | 67.00 | a | 112.00 | p | ||||||
1914 | 79.00 | 78.00 | a | 86.00 | u | 98.00 | 106.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |||
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 100.00 | a | 95.00 | 83.00 | 69.00 | ----- | z | |||
1938 | 69.00 | 78.00 | 86.00 | 95.00 | 102.00 | 107.00 | 107.00 | 109.00 | d | 97.00 | 97.00 | 77.00 | 73.00 | 109.00 | d | |||||||||||
1939 | 65.00 | 69.00 | 85.00 | 96.00 | 98.00 | 107.00 | 106.00 | 102.00 | 103.00 | 92.00 | 83.00 | 73.00 | 107.00 | |||||||||||||
1940 | 71.00 | 77.00 | 85.00 | 91.00 | 100.00 | 109.00 | 109.00 | 107.00 | 100.00 | 95.00 | 80.00 | 71.00 | 109.00 | |||||||||||||
1941 | 70.00 | 75.00 | 79.00 | 83.00 | 98.00 | 104.00 | 106.00 | 102.00 | 99.00 | 90.00 | 80.00 | 72.00 | 106.00 | |||||||||||||
1942 | 73.00 | 73.00 | 83.00 | e | 89.00 | 100.00 | 106.00 | 107.00 | 102.00 | 101.00 | 91.00 | 84.00 | 70.00 | 107.00 | e | |||||||||||
1943 | 69.00 | 83.00 | 88.00 | 100.00 | 100.00 | 107.00 | 106.00 | 102.00 | 103.00 | 90.00 | 79.00 | 69.00 | 107.00 | |||||||||||||
1944 | 70.00 | a | 71.00 | 81.00 | 87.00 | 100.00 | 105.00 | 106.00 | 109.00 | 102.00 | 95.00 | a | 82.00 | 68.00 | 109.00 | b | ||||||||||
1945 | ----- | z | 77.00 | b | 82.00 | 93.00 | 98.00 | d | 107.00 | 108.00 | 105.00 | 108.00 | 88.00 | 81.00 | 76.00 | ----- | z | |||||||||
1946 | 69.00 | 79.00 | 90.00 | a | 94.00 | 97.00 | 109.00 | 108.00 | 104.00 | 102.00 | 90.00 | 75.00 | 75.00 | 109.00 | a | |||||||||||
1947 | 74.00 | 75.00 | 84.00 | a | 91.00 | 104.00 | 104.00 | 108.00 | 105.00 | 105.00 | 98.00 | 84.00 | 69.00 | 108.00 | a | |||||||||||
1948 | 73.00 | a | 78.00 | 79.00 | 96.00 | 102.00 | b | 107.00 | 111.00 | 106.00 | 107.00 | 94.00 | 76.00 | 69.00 | 111.00 | c | ||||||||||
1949 | 68.00 | 77.00 | ----- | z | 96.00 | 102.00 | 109.00 | 107.00 | 105.00 | 108.00 | 95.00 | 83.00 | 74.00 | ----- | z | |||||||||||
1950 | 77.00 | 80.00 | a | 85.00 | 96.00 | 97.00 | 109.00 | 107.00 | 105.00 | 108.00 | 99.00 | 85.00 | 75.00 | e | 109.00 | f | ||||||||||
1951 | ----- | z | 82.00 | 82.00 | b | 93.00 | 110.00 | 108.00 | 111.00 | 107.00 | a | 102.00 | a | 95.00 | 76.00 | 77.00 | ----- | z | ||||||||
1952 | 72.00 | 72.00 | 82.00 | 92.00 | 99.00 | 108.00 | 107.00 | 107.00 | a | 107.00 | 97.00 | 85.00 | 67.00 | 108.00 | a | |||||||||||
1953 | 74.00 | 77.00 | 90.00 | 94.00 | 102.00 | 111.00 | 112.00 | 104.00 | 101.00 | 94.00 | 83.00 | 74.00 | 112.00 | |||||||||||||
1954 | 76.00 | 80.00 | 82.00 | 92.00 | 95.00 | 106.00 | 107.00 | 102.00 | 101.00 | 97.00 | a | 84.00 | 78.00 | 107.00 | a | |||||||||||
1955 | 66.00 | 79.00 | 84.00 | 87.00 | 99.00 | b | 106.00 | a | 108.00 | 100.00 | 103.00 | 97.00 | 84.00 | 75.00 | 108.00 | c | ||||||||||
1956 | 73.00 | 80.00 | 88.00 | 88.00 | 100.00 | 108.00 | 109.00 | 106.00 | 104.00 | 98.00 | 81.00 | 72.00 | 109.00 | |||||||||||||
1957 | 73.00 | 87.00 | 83.00 | 98.00 | 97.00 | 108.00 | 112.00 | 102.00 | 99.00 | 95.00 | 77.00 | 72.00 | 112.00 | |||||||||||||
1958 | 72.00 | 80.00 | 75.00 | 95.00 | 106.00 | 109.00 | 110.00 | 103.00 | 100.00 | 89.00 | 82.00 | 76.00 | 110.00 | |||||||||||||
1959 | 75.00 | 75.00 | 82.00 | 93.00 | 100.00 | 107.00 | 105.00 | 100.00 | 104.00 | 94.00 | 75.00 | 71.00 | c | 107.00 | c | |||||||||||
1960 | 69.00 | b | 68.00 | 87.00 | 95.00 | 101.00 | 109.00 | 105.00 | 105.00 | 100.00 | b | 95.00 | 85.00 | 72.00 | 109.00 | d | ||||||||||
1961 | 71.00 | 80.00 | 85.00 | 91.00 | 100.00 | 108.00 | 105.00 | 102.00 | 94.00 | 91.00 | 75.00 | 73.00 | i | 108.00 | i | |||||||||||
1962 | 69.00 | b | 83.00 | 86.00 | 98.00 | 99.00 | 106.00 | 103.00 | 107.00 | 105.00 | 90.00 | 84.00 | 73.00 | d | 107.00 | f | ||||||||||
1963 | 74.00 | 85.00 | 85.00 | c | 95.00 | 98.00 | 106.00 | 108.00 | 102.00 | 99.00 | 95.00 | 81.00 | 73.00 | 108.00 | c | |||||||||||
1964 | 72.00 | 74.00 | 82.00 | a | 92.00 | a | 100.00 | 102.00 | 107.00 | 106.00 | a | 102.00 | 94.00 | 85.00 | a | 73.00 | h | 107.00 | l | |||||||
1965 | 73.00 | c | 78.00 | 83.00 | 97.00 | 96.00 | b | 104.00 | 106.00 | 104.00 | 97.00 | 98.00 | 85.00 | 75.00 | 106.00 | e | ||||||||||
1966 | 70.00 | 73.00 | 85.00 | c | 91.00 | 99.00 | 105.00 | 105.00 | a | 102.00 | 98.00 | 91.00 | 84.00 | 77.00 | 105.00 | d | ||||||||||
1967 | 78.00 | 79.00 | 87.00 | e | 88.00 | 97.00 | b | 103.00 | 106.00 | 103.00 | 97.00 | f | 92.00 | 84.00 | a | 70.00 | f | 106.00 | t | |||||||
1968 | 72.00 | c | 80.00 | 87.00 | a | 86.00 | d | 100.00 | 107.00 | 103.00 | 97.00 | 99.00 | 93.00 | 80.00 | b | 72.00 | 107.00 | j | ||||||||
1969 | 74.00 | 75.00 | 90.00 | 95.00 | 101.00 | 103.00 | 108.00 | 105.00 | 98.00 | 95.00 | 81.00 | 78.00 | a | 108.00 | a | |||||||||||
1970 | 74.00 | 77.00 | 80.00 | 86.00 | 100.00 | 112.00 | 108.00 | a | 105.00 | a | 101.00 | c | 89.00 | a | 87.00 | d | 78.00 | b | 112.00 | l | ||||||
1971 | 82.00 | 81.00 | 91.00 | 92.00 | 102.00 | d | 116.00 | 111.00 | h | 97.00 | f | 101.00 | 86.00 | 79.00 | 75.00 | c | 116.00 | u | ||||||||
1972 | 72.00 | b | 83.00 | 92.00 | 92.00 | 94.00 | 106.00 | 106.00 | 107.00 | 99.00 | a | 95.00 | 73.00 | 70.00 | 107.00 | c | ||||||||||
1973 | 78.00 | 76.00 | 75.00 | d | 87.00 | h | ----- | z | 105.00 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 72.41 | 77.78 | 84.50 | 92.20 | 99.83 | 106.66 | 107.43 | 103.77 | 101.17 | 93.40 | 81.15 | 72.20 | 108.41 | |||||||||||||
S.D. | 3.59 | 3.99 | 4.35 | 3.75 | 3.46 | 3.01 | 2.45 | 2.76 | 3.25 | 3.20 | 3.63 | 3.28 | 1.76 | |||||||||||||
SKEW | 0.56 | -0.06 | -0.04 | -0.24 | 0.58 | 0.43 | 0.13 | -0.36 | 0.38 | -0.55 | -0.47 | -0.25 | 0.42 | |||||||||||||
MAX | 82.00 | 87.00 | 93.00 | 100.00 | 110.00 | 116.00 | 113.00 | 109.00 | 108.00 | 99.00 | 87.00 | 78.00 | 112.00 | |||||||||||||
MIN | 65.00 | 68.00 | 75.00 | 83.00 | 93.00 | 100.00 | 102.00 | 97.00 | 94.00 | 85.00 | 73.00 | 64.00 | 105.00 | |||||||||||||
YRS | 49 | 51 | 48 | 49 | 47 | 47 | 46 | 44 | 47 | 50 | 52 | 49 | 22 |