The same storm that brought 6+ inches of rainfall and flash flooding to California as well as 6+ feet to the Sierra Nevada late the previous week moved into the Great Lakes on January 31st and February 1st. This system joined with another system to develop a coastal low off the NJ coast during the night of February 1st and slowly moved across the Gulf of Maine on February 2nd. A Nor'easter with snowfall of 18 inches in NYC and more than 2 feet in parts of Northern NJ/Eastern PA during the 31st and 1st slowly spread snow northward into Vermont.
Snowfall developed during the late evening hours of February 1st in southern VT and didn't reach the Canadian border until the early morning hours of February 2nd.
The initial snow band delivered 5 to 10 inches with locally higher amounts in southern Vermont as it crawled northward. In the early morning hours, this band increased forward speed and only delivered 2 to 3 inches elsewhere before ending just after sunrise.  A secondary band of snow, with snowfall rates of 1-2+ inches an hour, moved across sections of central and northern VT into the northern Champlain Valley  during the later afternoon and early evening causing hazardous driving conditions during the evening commute.
Snowfall amounts ranged from 5 to 12 inches in the southern Green Mountains and lower Connecticut Valley as well as the northern Champlain Valley. Elsewhere, snowfall amounts were largely 3 to 6 inches.

Winter Storm in WINDSOR, VERMONT
From 01-FEB-21 21:00:00 to 02-FEB-21 07:00:00 (EST-5)
Property damage: 10.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall totals in Windsor county ranged from 6 to 12 inches.

Winter Weather in EASTERN ADDISON, VERMONT
From 01-FEB-21 23:00:00 to 02-FEB-21 18:00:00 (EST-5)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall totals in Addison county ranged from 4 to 7 inches.

Winter Weather in WESTERN ADDISON, VERMONT
From 01-FEB-21 23:00:00 to 02-FEB-21 18:00:00 (EST-5)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall totals in Addison county ranged from 4 to 7 inches.

Winter Weather in ORANGE, VERMONT
From 01-FEB-21 22:00:00 to 02-FEB-21 14:00:00 (EST-5)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall totals in Orange county ranged from 3 to 5 inches.

Winter Weather in WASHINGTON, VERMONT
From 02-FEB-21 00:00:00 to 02-FEB-21 18:00:00 (EST-5)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall totals in Washington county ranged from 5 to 8 inches.

Winter Weather in CALEDONIA, VERMONT
From 02-FEB-21 01:00:00 to 02-FEB-21 18:00:00 (EST-5)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall totals in Caledonia county ranged from 3 to 6 inches.

Winter Weather in ESSEX, VERMONT
From 02-FEB-21 03:00:00 to 02-FEB-21 18:00:00 (EST-5)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall totals in Essex county ranged from 2 to 6 inches.

Winter Weather in ORLEANS, VERMONT
From 02-FEB-21 03:00:00 to 02-FEB-21 18:00:00 (EST-5)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall totals in Orleans county ranged from 3 to 8 inches.

Winter Weather in LAMOILLE, VERMONT
From 02-FEB-21 03:00:00 to 02-FEB-21 18:00:00 (EST-5)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall totals in Lamoille county ranged from 4 to 9 inches.

Winter Weather in GRAND ISLE, VERMONT
From 02-FEB-21 04:00:00 to 02-FEB-21 20:00:00 (EST-5)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall totals in Grand Isle county ranged from 4 to 9 inches.

Winter Weather in EASTERN CHITTENDEN, VERMONT
From 02-FEB-21 03:00:00 to 02-FEB-21 20:00:00 (EST-5)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall totals in eastern Chittenden county ranged from 5 to 10 inches.

Winter Weather in EASTERN FRANKLIN, VERMONT
From 02-FEB-21 05:00:00 to 02-FEB-21 20:00:00 (EST-5)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall totals in eastern Franklin county ranged from 5 to 10 inches.

Winter Storm in WESTERN CHITTENDEN, VERMONT
From 02-FEB-21 04:00:00 to 02-FEB-21 20:00:00 (EST-5)
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

Snowfall totals in western Chittenden ranged from 5 to 12 inches with the heaviest in the northern parts with 2+ inches of snow per hour during the evening commute.

Winter Storm in WESTERN FRANKLIN, VERMONT
From 02-FEB-21 05:00:00 to 02-FEB-21 20:00:00 (EST-5)
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

Snowfall totals in western Franklin county ranged from 6 to 12 inches with the heaviest occurring during the evening commute with 2+ inches of snow per hour.

Winter Weather in WESTERN RUTLAND, VERMONT
From 01-FEB-21 21:00:00 to 02-FEB-21 09:00:00 (EST-5)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall totals in Rutland county ranged from 3 to 6 inches in the west to 6 to 10 inches in the hilly terrain to the east.

Winter Storm in EASTERN RUTLAND, VERMONT
From 01-FEB-21 22:00:00 to 02-FEB-21 09:00:00 (EST-5)
Property damage: 10.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall totals in Rutland county ranged from 3 to 6 inches in the west to 6 to 10 inches in the hilly terrain to the east.