Durham 2 N
USCRNTypically freezes to 2 inches, not to 4.
2 in
2 inches: typically frozen from Jan 16 to Mar 5, a median of 54 frozen days.54 days
4 inFroze in 2 of 5 winters, no typical dates
Nov 3, 2026: Not frozen
Frost Depth in New Hampshire: When the Ground Freezes
2 of 4 stations freeze at 2 inches in a typical winter.
- Stations that typically freeze
- 2 of 4
- Earliest typical freeze at 2 in
- Jan 16
- Latest typical thaw at 2 in
- Mar 14
Station by station
When does the ground freeze in New Hampshire?
Each bar runs from the typical first freeze to the typical last thaw at that depth, the median over the station's complete winters on record, with the typical number of frozen days after it. Frost reaches the deeper probes later in the winter. A depth that froze in fewer than half of its winters has no typical dates. Stations: 2 typically freeze, 1 froze in some winters, 1 with too few winters to say.
Durham 2 SSW
USCRNTypically freezes at every depth measured, down to 4 inches.
2 in
2 inches: typically frozen from Jan 21 to Mar 14, a median of 60 frozen days.60 days
4 in
4 inches: typically frozen from Jan 21 to Mar 11, a median of 61 frozen days.61 days
Nov 3, 2026: Not frozen
Hubbard Brook
SCANFroze at 2 inches in 2 of 5 complete winters on record.
2 in
Each frozen winter's first freeze to last thaw at 2 inches.
2 in: froze in 2 of 5 · 4 in: froze in 1 of 5 · 8 in: froze in 0 of 5 · 20 in: froze in 0 of 5 · 40 in: froze in 0 of 5
Nov 3, 2026: Not frozen
Mascoma River
SCAN0 complete winters on record, too few for typical dates.
Nov 3, 2026: No 2-inch reading today
A winter runs July to June. Our station readings come from one grass-covered site per station at five fixed depths, and often show shallower frost than regional figures.
More on frost depth
Where the ground is frozen today across the US · New Hampshire soil temperature · First frost and frost depth guide