From the NOAA Global Climate Report – October 2019 page:
The combined global land and ocean surface temperature departure from average for October 2019 was the second highest for October in the 140-year record at 0.98°C (1.76°F) above the 20th century average 14.0°C (57.1°F). This value is just 0.06°C (0.11°F) shy of tying the record warm October set in 2015. The 10 warmest Octobers have occurred since 2003; however, the five warmest Octobers have all occurred since 2015.
This occured with ENSO-neutral conditions during October 2019. Also, January through October for 2019:
The first ten months of 2019 ranked as the second warmest January–October on record, with a combined global land and ocean surface temperature of 0.94°C (1.69°F) above the 20th century average of 14.1°C (57.4°F). This is only 0.09°C (0.16°F) shy of tying the record warm January–October set in 2016.
October time series data from 1880 through 2019 is available here.