YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 69.81 | n | 63.45 | 63.45 | k | |
1906 | 69.03 | 75.86 | 79.94 | 85.87 | 93.68 | 103.47 | 108.45 | 105.39 | 101.33 | 90.55 | 74.87 | 68.74 | 88.10 | |||||||||||||
1907 | 67.81 | 78.89 | 78.77 | 87.70 | 91.84 | 98.27 | 105.19 | 104.06 | 102.53 | 88.03 | 78.66 | a | 72.35 | 87.84 | ||||||||||||
1908 | 69.65 | 71.72 | 84.23 | 89.30 | 91.47 | a | 99.70 | 106.52 | 106.71 | 99.93 | 86.97 | 80.00 | 64.77 | 87.58 | ||||||||||||
1909 | 72.45 | 71.96 | 74.84 | 86.67 | 89.68 | 99.67 | 103.42 | 100.32 | 95.67 | 88.71 | 74.57 | 59.81 | 84.81 | |||||||||||||
1910 | 64.42 | 71.29 | 82.29 | 88.97 | a | 96.03 | 100.57 | 103.61 | 105.00 | 101.76 | a | 88.74 | 77.17 | 71.35 | 87.60 | |||||||||||
1911 | 68.61 | 66.04 | 80.10 | 83.13 | 90.23 | 97.83 | 101.58 | 103.45 | 98.80 | 87.35 | 74.60 | 65.10 | 84.74 | |||||||||||||
1912 | 71.00 | a | 74.97 | 72.45 | 78.80 | ----- | z | 99.37 | 99.81 | 99.87 | 96.50 | 84.48 | 77.70 | 64.97 | 83.63 | a | ||||||||||
1913 | 63.40 | a | 68.25 | 73.23 | 83.53 | 90.58 | 96.28 | a | 100.39 | 100.77 | 98.60 | 87.93 | a | 76.77 | 69.13 | 84.07 | ||||||||||
1914 | 69.27 | a | 71.14 | 81.23 | 85.30 | 92.61 | 97.43 | 101.71 | 102.94 | 99.83 | 87.77 | 81.66 | a | 63.07 | a | 86.16 | ||||||||||
1915 | 64.83 | b | 68.96 | 77.39 | 82.10 | a | 88.00 | 102.10 | 100.90 | 104.52 | 96.59 | a | 91.94 | 77.97 | a | 68.68 | c | 85.33 | ||||||||
1916 | 64.42 | 76.33 | b | 83.29 | 87.67 | 92.03 | 98.65 | d | 101.10 | 103.55 | 100.76 | a | 85.45 | 77.71 | b | ----- | z | 88.27 | a | |||||||
1917 | ----- | z | ----- | z | 76.63 | a | 83.90 | 88.13 | 102.60 | 102.90 | 104.00 | 101.93 | 95.45 | 79.53 | 76.19 | d | 91.13 | b | ||||||||
1918 | 70.71 | 73.21 | 80.19 | 87.47 | 90.03 | 104.13 | 105.42 | 101.83 | a | 101.50 | 91.35 | 74.70 | 67.06 | 87.30 | ||||||||||||
1919 | 69.80 | a | 70.04 | 75.39 | 89.13 | 92.29 | 101.73 | 101.77 | 103.39 | 97.87 | 82.80 | a | 72.90 | a | 69.26 | 85.53 | ||||||||||
1920 | 65.87 | 69.32 | d | 74.84 | 82.70 | 91.81 | 99.13 | 106.35 | 101.00 | 96.30 | 84.81 | 76.70 | 68.26 | 84.76 | ||||||||||||
1921 | 68.58 | 74.96 | 81.19 | 85.07 | 87.61 | 99.90 | 102.74 | 101.00 | 100.18 | b | 92.25 | c | 82.03 | 70.87 | 87.20 | |||||||||||
1922 | 65.16 | 71.29 | 75.48 | 80.70 | 95.40 | a | 103.33 | 105.65 | 104.74 | 104.00 | 92.71 | 76.10 | 71.33 | d | 87.16 | |||||||||||
1923 | 73.68 | 73.75 | 78.97 | 83.90 | 96.52 | 97.93 | 104.60 | a | 103.65 | 96.33 | 86.26 | 76.93 | 64.90 | 86.45 | ||||||||||||
1924 | 68.93 | a | 80.28 | 76.81 | 84.83 | 97.35 | 105.47 | 106.32 | 106.20 | a | 103.07 | 88.67 | a | 79.48 | a | 66.94 | 88.70 | |||||||||
1925 | 69.52 | b | 80.82 | k | 81.65 | 85.93 | 93.52 | 97.11 | c | 105.14 | b | 102.39 | 97.62 | a | 85.00 | 76.20 | ----- | z | 89.41 | b | ||||||
1926 | 68.77 | a | 77.43 | 81.58 | 86.53 | 91.35 | 99.76 | a | 102.53 | a | 102.83 | b | 99.47 | 92.00 | 81.53 | 65.00 | 87.40 | |||||||||
1927 | 71.81 | 75.25 | 77.58 | 85.50 | 93.90 | 98.83 | 102.97 | a | 102.52 | 96.90 | 90.03 | 79.37 | 65.84 | 86.71 | ||||||||||||
1928 | ----- | z | 72.18 | a | 80.97 | 85.90 | 93.81 | 99.43 | 102.39 | 101.81 | 100.73 | 89.58 | 76.83 | 68.35 | 88.36 | a | ||||||||||
1929 | 66.03 | 69.78 | a | 78.19 | 81.30 | g | 94.32 | 98.80 | 102.87 | 102.19 | 96.78 | c | 91.58 | 77.83 | a | ----- | z | 87.84 | b | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 68.35 | 72.86 | 78.63 | 85.24 | 92.27 | 100.06 | 103.51 | 103.09 | 99.37 | 88.77 | 77.57 | 67.52 | 86.52 | |||||||||||||
S.D. | 2.82 | 3.60 | 3.20 | 2.67 | 2.68 | 2.39 | 2.23 | 1.82 | 2.45 | 3.10 | 2.40 | 3.66 | 1.36 | |||||||||||||
SKEW | -0.10 | 0.25 | -0.21 | -0.50 | 0.05 | 0.64 | 0.34 | 0.12 | 0.12 | 0.07 | 0.15 | 0.22 | -0.32 | |||||||||||||
MAX | 73.68 | 80.28 | 84.23 | 89.30 | 97.35 | 105.47 | 108.45 | 106.71 | 104.00 | 95.45 | 82.03 | 76.19 | 88.70 | |||||||||||||
MIN | 63.40 | 66.04 | 72.45 | 78.80 | 87.61 | 96.28 | 99.81 | 99.87 | 95.67 | 82.80 | 72.90 | 59.81 | 84.07 | |||||||||||||
YRS | 22 | 22 | 24 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 22 | 18 |