The current solar cycle 24 is the third weakest since the systematic observation of solar cycle activity began in 1755. Only solar cycles nos. 5 and 6 (1798…1823 during the Dalton Minimum) were weaker.
Editor Note: One note about the introductory graphic and historic sunspot counts. Early instrumentation may have resulted in sunspots being undercounted because if two sunspots were closely located, they may have been counted as one sunspot, not two. What that means is that the 5 and 6 solar cycles most likely undercounted the sunspots, and are most likely closer to the current level of -4048 than the graphic demonstrates.