A cool and dry air mass was in place across northern New England on May 8th into the 9th. At the same time low pressure began to develop just south of New England spreading rain across New Hampshire on the night of the 8th. Through evaporational cooling and strong lift, the rain changed to snow across higher elevations with the snow levels falling throughout the night until many locations picked up several inches of snow by midday on the 9th.

Winter Weather in SOUTHERN GRAFTON, NEW HAMPSHIRE
From 08-MAY-20 23:00:00 to 09-MAY-20 12:00:00 (EST-5)
Reported by: Trained Spotter

A few inches of snow fell across southern Grafton County depending on elevation as well as the location of heaviest snow banding. Some selected amounts include 3 inches in Orange and 1.5 inches in Plymouth.

Winter Weather in BELKNAP, NEW HAMPSHIRE
From 09-MAY-20 04:00:00 to 09-MAY-20 10:00:00 (EST-5)
Reported by: Trained Spotter

Rain changed to wet snow during the early morning hours on the 9th. Anywhere from 1 to 3 inches of snow fell across much of Belknap County NH depending on elevation as well as the location of heaviest snow banding. Some selected amounts include 3 inches in Gilford, 2.3 inches in New Hampton, and 2 inches in both Laconia and Meredith.

Winter Weather in SOUTHERN GRAFTON, NEW HAMPSHIRE
From 09-MAY-20 04:00:00 to 09-MAY-20 11:00:00 (EST-5)
Reported by: Trained Spotter

Rain changed to wet snow during the early morning hours on the 9th. Anywhere from a dusting to 3 inches of snow fell depending on elevation as well as the location of heaviest snow banding. Some selected amounts include 2 inches in Brookfield and 2.4 inches 1 mile west of Wolfeboro.

Winter Weather in WESTERN AND CENTRAL HILLSBOROUGH, NEW HAMPSHIRE
From 09-MAY-20 04:00:00 to 09-MAY-20 08:00:00 (EST-5)
Reported by: Trained Spotter

Rain changed to wet snow during the early morning hours on the 9th. Anywhere from a dusting to 2 inches of snow fell depending on elevation as well as the location of heaviest snow banding. Some selected amounts include 0.3 inch in Greenville and 2 inches in Hillsborough.

Winter Weather in MERRIMACK, NEW HAMPSHIRE
From 09-MAY-20 03:00:00 to 09-MAY-20 11:00:00 (EST-5)
Reported by: Trained Spotter

Rain changed to wet snow during the early morning hours on the 9th. Anywhere from a dusting to 3 inches of snow fell depending on elevation as well as the location of heaviest snow banding. Some selected amounts include 0.4 inch at the Concord airport, 2 inches in Epsom, and 2.5 inches in Danbury.

Winter Weather in CHESHIRE, NEW HAMPSHIRE
From 09-MAY-20 04:00:00 to 09-MAY-20 09:00:00 (EST-5)
Reported by: COOP Observer

Rain changed to wet snow during the early morning hours on the 9th. Anywhere from a dusting to 1 inch of snow fell. Some selected amounts include 0.4 inch in Jaffrey and 0.5 inch in Spofford.

Winter Weather in INTERIOR ROCKINGHAM, NEW HAMPSHIRE
From 09-MAY-20 05:00:00 to 09-MAY-20 09:00:00 (EST-5)
Reported by: Trained Spotter

Rain changed to wet snow during the early morning hours on the 9th. 2.1 inches fell in Northwood and 0.1 inches in Hampstead.

Winter Weather in STRAFFORD, NEW HAMPSHIRE
From 09-MAY-20 04:00:00 to 09-MAY-20 10:00:00 (EST-5)
Reported by: Trained Spotter

Rain changed to wet snow during the early morning hours on the 9th. Anywhere from a dusting to 2 inches of snow fell. 1.5 inches fell in Rochester and 1.7 inches fell in Middleton.

Winter Weather in SULLIVAN, NEW HAMPSHIRE
From 09-MAY-20 03:00:00 to 09-MAY-20 08:00:00 (EST-5)
Reported by: Trained Spotter

Rain changed to wet snow during the early morning hours on the 9th. Anywhere from a dusting to 3 inches of snow fell depending on elevation as well as the location of heaviest snow banding. Some selected amounts include 2.5 inches in Sunapee, 2 inches in Unity, and 2 inches in Charlestown.

Winter Weather in NORTHERN COOS, NEW HAMPSHIRE
From 08-MAY-20 22:00:00 to 09-MAY-20 13:00:00 (EST-5)
Reported by: Trained Spotter

Anywhere from 1 to 5 inches of snow fell across northern Coos County NH with the highest amount of 5 inches in Colebrook.

Winter Weather in SOUTHERN COOS, NEW HAMPSHIRE
From 08-MAY-20 21:00:00 to 09-MAY-20 13:00:00 (EST-5)
Reported by: Trained Spotter

Anywhere from 2 to 8 inches of snow fell across southern Coos County NH with the highest amounts of 8 inches 6 ESE Carroll and in Whitefield.

Winter Weather in NORTHERN GRAFTON, NEW HAMPSHIRE
From 08-MAY-20 22:00:00 to 09-MAY-20 13:00:00 (EST-5)
Reported by: Trained Spotter

Anywhere from 1 to 10 inches of snow fell across northern Grafton County NH depending on elevation as well as the location of heaviest snow banding. Some selected amounts include 10.5 inches in Sugar Hill, 6.5 inches in Bethlehem, and 4 inches in Piermont.

Winter Weather in NORTHERN CARROLL, NEW HAMPSHIRE
From 09-MAY-20 00:00:00 to 09-MAY-20 11:00:00 (EST-5)
Reported by: Trained Spotter

Rain changed to wet snow during the early morning hours on the 9th. Anywhere from a dusting to 4 inches of snow fell depending on elevation as well as the location of heaviest snow banding. Some selected amounts include 0.5 inch in North Conway and 4 inches in Jackson.