If you have shitty enough weather, that output amounts to virtually nothing. Especially in the shortest days of winter where you're stacking the short days, low sun angle, and potential of snowfall literally covering the panels temporarily/further interfering with sunlight reaching them.

Scroll to the bottom for a cold spell w/uncooperative weather and the solar outputs estimated:

https://www.iso-ne.com/about/what-we-do/in-depth/solar-power-in-new-england-locations-and-impact