Winnisquam Marine
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Boat launches near Winnisquam Marine
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Typical flow by month
1937 to 2026
The water at Winnisquam Marine typically runs highest in April, at a median 1,030 cfs, and lowest in August, at 305 cfs. The highest flow on record for any single day is 4,480 cfs, in 1984.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 812 | 551 to 1,210 | |
| February | 823 | 513 to 1,210 | |
| March | 871 | 542 to 1,220 | |
| April | 1,030 | 586 to 1,585 | |
| May | 743 | 398 to 1,400 | |
| June | 496 | 320 to 1,005 | |
| July | 327 | 275 to 547 | |
| August | 305 | 265 to 508 | |
| September | 306 | 263 to 505 | |
| October | 323 | 256 to 520 | |
| November | 426 | 296 to 738 | |
| December | 620 | 356 to 1,030 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 89 years of record. Statistics published by the US Geological Survey for Winnipesaukee River at Tilton, NH (site 01081000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Current conditions
Streamflow
278 cfs
Normal (32nd)
Water level
2.50 ft
High today
63°F
Wind
12 kt
Gusts 17 kt
Rain chance
0%
Week ahead
Forecast from Open-Meteo global models (NOAA & ECMWF). See full conditions →
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