| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1916 | ----- | z | ----- | z | ----- | z | ----- | z | 76.00 | o | 102.00 | 99.00 | 104.00 | 96.00 | 82.00 | 71.00 | n | ----- | z | 104.00 | ||||||
| 1917 | ----- | z | ----- | z | 62.00 | n | 69.00 | b | 77.00 | 96.00 | 105.00 | 102.00 | 90.00 | 84.00 | a | ----- | z | ----- | z | 105.00 | ||||||
| 1918 | ----- | z | ----- | z | ----- | z | 78.00 | 85.00 | 103.00 | 110.00 | 101.00 | 92.00 | 83.00 | ----- | z | ----- | z | 110.00 | ||||||||
| 1919 | ----- | z | ----- | z | 76.00 | 76.00 | 88.00 | 93.00 | 105.00 | a | 100.00 | 87.00 | 82.00 | ----- | z | ----- | z | 105.00 | ||||||||
| 1920 | ----- | z | ----- | z | 69.00 | 74.00 | ----- | z | 95.00 | 103.00 | 104.00 | 91.00 | 82.00 | ----- | z | ----- | z | 104.00 | ||||||||
| 1921 | ----- | z | ----- | z | 70.00 | 71.00 | 85.00 | 100.00 | 99.00 | 100.00 | a | 85.00 | 82.00 | ----- | z | ----- | z | 100.00 | ||||||||
| 1922 | ----- | z | ----- | z | 62.00 | 77.00 | 89.00 | 100.00 | 109.00 | a | 102.00 | ----- | z | 86.00 | ----- | z | ----- | z | 109.00 | |||||||
| 1923 | ----- | z | ----- | z | 77.00 | 83.00 | 88.00 | 99.00 | 103.00 | 105.00 | a | 95.00 | 84.00 | ----- | z | ----- | z | 105.00 | ||||||||
| 1924 | ----- | z | ----- | z | 60.00 | 78.00 | 94.00 | 98.00 | 108.00 | 101.00 | 95.00 | 82.00 | ----- | z | ----- | z | 108.00 | |||||||||
| 1925 | ----- | z | ----- | z | 69.00 | 85.00 | 86.00 | 103.00 | a | 104.00 | 106.00 | 91.00 | 79.00 | ----- | z | ----- | z | 106.00 | ||||||||
| 1926 | ----- | z | ----- | z | 74.00 | 93.00 | 88.00 | 102.00 | 107.00 | 100.00 | 86.00 | 77.00 | ----- | z | ----- | z | 107.00 | |||||||||
| 1927 | ----- | z | ----- | z | 67.00 | 83.00 | 86.00 | 97.00 | 106.00 | a | 99.00 | 82.00 | 79.00 | ----- | z | ----- | z | 106.00 | ||||||||
| 1928 | ----- | z | ----- | z | 71.00 | a | 75.00 | 95.00 | a | 101.00 | 113.00 | 98.00 | 100.00 | 81.00 | ----- | z | ----- | z | 113.00 | |||||||
| 1929 | ----- | z | ----- | z | 72.00 | 76.00 | a | 89.00 | 98.00 | 108.00 | 105.00 | 94.00 | 84.00 | ----- | z | ----- | z | 108.00 | ||||||||
| 1930 | ----- | z | ----- | z | 74.00 | 78.00 | 85.00 | 97.00 | 108.00 | 102.00 | 97.00 | 75.00 | ----- | z | ----- | z | 108.00 | |||||||||
| 1931 | ----- | z | ----- | z | 65.00 | 81.00 | 96.00 | 100.00 | a | 106.00 | 101.00 | 96.00 | 86.00 | ----- | z | ----- | z | 106.00 | ||||||||
| 1932 | ----- | z | ----- | z | 65.00 | 85.00 | 83.00 | 98.00 | 102.00 | 99.00 | 97.00 | 86.00 | ----- | z | ----- | z | 102.00 | |||||||||
| 1933 | ----- | z | ----- | z | 65.00 | 80.00 | 84.00 | 100.00 | 105.00 | 104.00 | 88.00 | 82.00 | ----- | z | ----- | z | 105.00 | |||||||||
| 1934 | ----- | z | ----- | z | 73.00 | 92.00 | 100.00 | 99.00 | 107.00 | 105.00 | 99.00 | 88.00 | ----- | z | ----- | z | 107.00 | |||||||||
| 1935 | ----- | z | ----- | z | 74.00 | 71.00 | 89.00 | 95.00 | 111.00 | 99.00 | 99.00 | 86.00 | ----- | z | ----- | z | 111.00 | |||||||||
| 1936 | ----- | z | ----- | z | 69.00 | 88.00 | c | 101.00 | b | 102.00 | 105.00 | 104.00 | 92.00 | 85.00 | ----- | z | ----- | z | 105.00 | |||||||
| 1937 | ----- | z | ----- | z | 65.00 | 74.00 | a | 91.00 | 102.00 | 105.00 | 102.00 | 96.00 | 79.00 | ----- | z | ----- | z | 105.00 | ||||||||
| 1938 | ----- | z | ----- | z | 69.00 | 81.00 | 92.00 | 95.00 | 108.00 | 103.00 | 100.00 | a | 83.00 | ----- | z | ----- | z | 108.00 | ||||||||
| 1939 | ----- | z | ----- | z | 77.00 | 89.00 | 95.00 | 104.00 | 110.00 | 105.00 | 93.00 | 81.00 | ----- | z | ----- | z | 110.00 | |||||||||
| 1940 | ----- | z | ----- | z | 73.00 | 77.00 | 95.00 | 106.00 | 105.00 | 101.00 | 93.00 | 88.00 | ----- | z | ----- | z | 106.00 | |||||||||
| 1941 | ----- | z | ----- | z | 71.00 | 80.00 | 92.00 | 97.00 | 111.00 | a | 104.00 | 85.00 | 77.00 | ----- | z | ----- | z | 111.00 | ||||||||
| 1942 | ----- | z | ----- | z | 72.00 | p | 85.00 | p | 92.00 | 86.00 | o | 106.00 | r | 110.00 | q | 93.00 | m | 88.00 | k | ----- | z | ----- | z | 110.00 | ||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 0.00 | 0.00 | 69.87 | 79.76 | 89.80 | 99.31 | 106.23 | 102.15 | 92.76 | 82.42 | 0.00 | 0.00 | 0.00 | |||||||||||||
| S.D. | 0.00 | 0.00 | 4.68 | 6.35 | 5.54 | 3.20 | 3.46 | 2.29 | 5.06 | 3.36 | 0.00 | 0.00 | 0.00 | |||||||||||||
| SKEW | 0.00 | 0.00 | -0.31 | 0.43 | 0.04 | 0.02 | -0.24 | -0.07 | -0.43 | -0.31 | 0.00 | 0.00 | 0.00 | |||||||||||||
| MAX | ----- | - | ----- | 77.00 | 93.00 | 101.00 | 106.00 | 113.00 | 106.00 | 100.00 | 88.00 | - | ----- | - | ----- | -9999.00 | ||||||||||
| MIN | ----- | ----- | 60.00 | 69.00 | 77.00 | 93.00 | 99.00 | 98.00 | 82.00 | 75.00 | ----- | ----- | 9999.00 | |||||||||||||
| NO YRS | 0 | 0 | 23 | 25 | 25 | 26 | 26 | 26 | 25 | 26 | 0 | 0 | 0 | |||||||||||||