The effect of La Nina:

Year-to-date (January-October) was rated warmest ever by NASA and NOAA. University of Alabama - Huntsville lower tropospheric satellite temperatures rank year-to-date second behind 1998. But October is 8th warmest for NOAA, 3rd warmest for NASA. La Nina is pulling down the end-of-year global temperatures, as expected.

Globe has 3rd or 8th warmest October on record; year-to-date period warmest on record