07/15/2026
The Dark Day of 1780:
With smoke from Canadian wildfires darkening our skies, it can feel like we live in strange or even unprecedented times, but did you know that Quincy saw even worse weather during the Revolution?
On May 19, 1780 Quincy, along with much of the Northeast, experienced a meteorological event that became known as "The Dark Day." For several days prior eyewitnesses from New Jersey to Maine reported a sickly yellow cast to the clouds, a vibrant orange sun, and a blood red moon. On the morning of the 19th, darkness fell so thickly that many people thought the Day of Judgement had come, and that the Revolution was doomed.
Abigail Adams, though comparing the weather to a Biblical plague, refused to give in to superstition and sought a logical explanation. Abigail writes in a letter to James Lovell (May 24, 1780) of witnessing "a strange Phenomena in the Natural World" that she called "Egyptian Darkness," but rather than seeing the weather as a portent of doom, she expressed her wish that "some of our Philosophical Geniousess will endeavour to investigate so unusual an appearence...It was the most solemn appearence my Eyes ever beheld but the Philosophical Eye can look through and trust the Ruler of the Sky."
Cotton Tufts, a relative of the Adamses, took an even more scientific approach, writing to John Adams (July 25, 1780) with his observations and deductions. Tufts tells us that in a well-lit room "large Print could not be read by Persons of good Eyes," and that when it was darkest, "some of the Dunghill Fowls went to roost, C***s crowed in Answer to one another as they commonly do in the Night. Wood C***s which are Night Birds whistled as they do only in the Dark—Frogs peeped—in short there was the Appearance of MidNight at Noon Day.”
"A close Attention to what appeared before and during this Event will help us to (at least) a probable Solution of this Matter." Tufts is then quick to add:
"Prior to this, The Woods from Ticonderoga for Thirty Miles downwards had been for some Time on Fire. No Rain for many Days, Winds chiefly at West and N. West. By these the Smoak and Vapours were carried to a great Distance, insomuch that in our Vicinity, the Sky was at Times obscurd, the Air crowded with Smoak and Vapours, a disagreable Smell like what proceeds from Swamps on Fire."
After further recounting the preceding days' wind, rain, and observations from other states, he arrives at the scientifically proven conclusion:
"From this Account Must We not infer, that this extraordinary Darkness was owing to a vast Collection of Smoke and Vapours brought together by a Number of concurring Causes and by Reason of different Currents of Air, conveyed in different Columns or Bodies so that when the Rays of Light struck one, they passed from that to the next with an impaired Force and so on, hence the Feebleness of Rays which reached us."
If you would like to read the letters for yourself, follow the links below to the Adams Papers on the Massachusetts Historical Society website. For a more in-depth explanation of the meteorological factors that caused New England's Dark Day, follow the link below for a video.
Abigail Adams Letter: https://www.masshist.org/publications/adams-papers/index.php/view/AFC03d271
Cotton Tufts Letter: https://www.masshist.org/publications/adams-papers/index.php/view/ADMS-04-03-02-0285-0003
YouTube Link: https://www.youtube.com/watch?v=6vEYlGjc8Ww
[Image: The Abigail Adams Statue on the Hancock Adams Common under a smoky yellow sky, July 15th, 2026. Photo credit to Donald Clifford Wheaton III.]