HADCRUT4 – Largest One Month Rise in Temperature Anomaly Was in 1862/1863

Using HADCRUT4 monthly anomalies, I noticed the largest one month rise in temperature anomaly was in December 1862 to January 1863.

The anomaly rose fromĀ -0.822C to +0.147.

A change of .969C. Before CO2.

HADCRUT4 Global 1860 to 1864