The warmest March in the US occurred during 1910.
ftp://ftp.cdc.noaa.gov/Datasets/cru/crutem4/var/air.mon.anom.nc
This led to the largest and some of the deadliest fires in US and Canadian history.
On October 7 a forest fire raged out of control across Lake of the Woods County, Minnesota, leveling everything in its path.
Baudette fire of 1910 – Wikipedia
23 Oct 1910, 6 – Monterey Daily Cypress and Monterey American at Newspapers.com
10 Oct 1910, Page 1 – Star Tribune at Newspapers.com
10 Oct 1910, Page 1 – The Winnipeg Tribune at Newspapers.com
A few weeks earlier was the largest forest fire in US history, along the Idaho/Montana border.