New Hampshire · Woodstock, NH
Pemigewasset River float season
Gauge 01076500 on the Woodstock through Campton to Plymouth. Franconia Notch meltwater mellows into a sandy, riffly float past I-93's blind side, where White Mountains day-trippers trade hiking boots for tubes and kayaks.
Right now at this gauge
loading CFS
Checking the live gauge…
Well above typical for this date
Live reading from the USGS gauge page for Pemigewasset River. Provisional data — subject to revision.
The year on this river
In a typical year at the Woodstock gauge, the Pemigewasset River runs fullest Mar–May and leanest Jul–Sep. Where today's reading falls inside that rhythm matters more than the raw number — the same flow that feels thin in spring can be the summer norm. Half of all past April days at this gauge ran above 2,915 CFS; the August median is 317 CFS.
| Month | Typical flow (CFS) | Relative volume |
|---|---|---|
| January | 620 | |
| February | 497 | |
| March | 864 | |
| April | 2,915 | |
| May | 2,160 | |
| June | 757 | |
| July | 407 | |
| August | 317 | |
| September | 317 | |
| October | 504 | |
| November | 943 | |
| December | 800 |
Record context
This gauge has measured daily flow since 1904 — 122 years of record. The largest daily average ever logged here was 57,300 CFS, in March 1936. Rivers do that sometimes; it's why the safety panel above isn't decoration.
Planning dates? The trip-window checker shows what flows have historically looked like on any week you pick for this river, or see what a CFS actually looks like.
More New Hampshire float rivers
-
Androscoggin River
Errol Dam through Seven Islands toward the Thirteen Mile Woods
Fullest: Mar–May
-
Saco River
North Conway to Fryeburg, ME — the sandbar camping miles
Fullest: Apr–Jun
Common questions
When is the Pemigewasset River usually at its fullest?
At the Woodstock gauge, the fullest stretch of a typical year is Mar–May, with the single highest monthly median in April (about 2,915 CFS). The leanest months are usually Jul–Sep.
What is a typical summer flow on the Pemigewasset River?
The July median at this gauge is about 407 CFS — half of past Julys ran higher, half lower. Late summer is this river's lean season, so expect readings to drift down as the season goes on.
Is the Pemigewasset River safe to float right now?
No flow number can answer that, and this site never labels a river safe. What the data can tell you is how today's reading compares with 122 years of this date's history — well above typical means pushier, colder, faster water. Pair that context with a PFD, a look at the river from the bank, and a call to a local outfitter before you commit.
Which USGS gauge does this page use?
USGS gauge 01076500 (PEMIGEWASSET RIVER AT PLYMOUTH, NH), chosen because it best represents the Woodstock through Campton to Plymouth. Daily records here reach back to 1904.
Data: USGS gauge 01076500, approved daily records 1904–2026, retrieved 2026-08-07. Live readings are provisional and subject to revision. U.S. Geological Survey data is public domain.