The twin winters of 1843 and 1844

[Weather-history]

Today, we are going to look at the winters 1843 and 1844 which could also be described as twin winters.

Here's a remarkable sequence that both winters followed

December 1842: 7.2 (+3.2)

December 1843: 7.4 (+3.4)

January 1843: 4.0 (+1.7)

January 1844: 3.8 (+1.5)

February 1843: 1.9 (-2.2)

February 1844: 1.6 (-2.5)

December 1842 is the 8th mildest December on record whilst December 1843 is the 10 mildest on record

Even more remarkable is that the preceding Novembers were close CET wise as well

Nov 1842: 5.5

Nov 1843: 5.7

Its the only instance of consecutive Decembers having a CET over 7 and the instances of consecutive Februarys having a CET of less than 2 is not that common, it has only happen 8 times, the last occasion being 1968/69. Very unusual for consecutive seasons to follow similar routes.