═════════╤═════╤═════╤═════╤═════╤═════╤═════╤═════╤═════╤═════╤═════╤═══════ │1880.│1881.│1882.│1883.│1884.│1885.│1886.│1887.│1888.│1889.│Ten-yr. │ │ │ │ │ │ │ │ │ │ │ av. ─────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────── January │ .39│ .37│ .62│ .60│ .54│ .37│ .37│ .36│ .49│ .34│ .445 February │ .37│ .37│ .58│ .57│ .54│ .37│ .37│ .35│ .47│ .35│ .434 March │ .35│ .40│ .64│ .56│ .52│ .39│ .37│ .37│ .49│ .34│ .443 April │ .34│ .42│ .74│ .53│ .50│ .45│ .37│ .38│ .52│ .34│ .459 May │ .37│ .43│ .73│ .55│ .55│ .47│ .36│ .38│ .57│ .34│ .475 June │ .36│ .45│ .72│ .54│ .54│ .47│ .35│ .37│ .51│ .34│ .465 July │ .36│ .48│ .78│ .50│ .53│ .47│ .40│ .36│ .48│ .36│ .472 August │ .38│ .57│ .77│ .52│ .53│ .45│ .42│ .40│ .45│ .35│ .484 September│ .40│ .67│ .67│ .50│ .69│ .43│ .39│ .42│ .43│ .33│ .493 October │ .40│ .68│ .65│ .48│ .50│ .42│ .35│ .42│ .43│ .32│ .465 November │ .42│ .61│ .68│ .52│ .40│ .43│ .35│ .44│ .39│ .46│ .470 December │ .39│ .61│ .55│ .59│ .37│ .39│ .37│ .49│ .35│ .32│ .443 ─────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────── Yearly │ .378│ .505│ .678│ .539│ .518│ .426│ .373│ .395│ .465│ .349│ .463 aver. │ │ │ │ │ │ │ │ │ │ │ ─────────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴───────