Charles River at First St at Cambridge water level
Tidal gauge, Charles River, Massachusetts, United States
Right now
Normal for mid-October
Water level
History
20252026
What this means
The Charles River at First St at Cambridge is at 107.94 ft, in the normal range for mid-October.
The median for mid-October is 107.73 ft, based on 19 years of readings, so the water level is 0.21 ft above typical. On the same day last year the reading was 108.12 ft, a difference of −0.18 ft.
It has barely moved over the past 24 hours. In the last month it has stayed between 106.76 ft and 108.32 ft.
Compared with 19 years of daily readings for this time of year. How to read levels
Key numbers
- Median for this date
- 107.73 ft0.21 ft above the median for this date
- Normal for this date
- 107.47 ft – 108.18 ft8 years in 10 fall in this range (19 years of records)
- Same day last year
- 108.12 ft−0.18 ft
- Lowest and highest in 30 days
- 106.76 ft – 108.32 ft
- Lowest and highest in 12 months
- 106.76 ft – 107.98 ft
Weather at the gauge
Rain in the last 3 days: 0.21 in. Rain that falls upstream can take hours or days to show up at a river gauge.
Forecast: Open-Meteo
Map
Other gauges on the Charles River
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Charles River at MedwayRiver gauge, Charles River | 1.16 ft | Below flood stage | −0.10 ft | 22 mi |
| Charles River at DoverRiver gauge, Charles River | 1.28 ft | Below flood stage | −0.06 ft | 12 mi |
| Charles River at WellesleyRiver gauge, Charles River | 195 cfs | Normal | −8.0 cfs | 8 mi |
| Charles River at WalthamRiver gauge, Charles River | 1.56 ft | Below flood stage | −0.04 ft | 8 mi |
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Charles River, New Charles River Dam at BostonTidal gauge, Charles River, New Charles River Dam | 107.88 ft | High | −0.01 ft | 1.0 mi |
| Muddy River at BrooklineTidal gauge, Muddy River | 7.89 ft | Normal | +0.04 ft | 2.4 mi |
| Alewife Brook near ArlingtonTidal gauge, Alewife Brook | 10.1 cfs | Normal | −2.7 cfs | 4.2 mi |
| Neponset River at Milton VillageEstuary gauge, Neponset River | 200 cfs | Normal | −24.0 cfs | 6 mi |
| Aberjona River at WinchesterRiver gauge, Aberjona River | 17.4 cfs | Normal | −3.4 cfs | 7 mi |
| Saugus River at Saugus Ironworks at SaugusTidal gauge, Saugus River | 8.2 cfs | Normal | −7.0 cfs | 8 mi |
| Mother Brook at DedhamRiver gauge, Mother Brook | 95.2 cfs | Very high | −28.8 cfs | 9 mi |
| Town Brook at QuincyTidal gauge, Town Brook | 3.7 cfs | Normal | −1.5 cfs | 9 mi |
Questions and answers
Is the Charles River at First St at Cambridge higher than last year?
No, it is 0.18 ft lower than on the same day last year, when the reading was 108.12 ft.
What is a normal level for the Charles River at First St at Cambridge in mid-October?
The median for mid-October is 107.73 ft. In 8 years out of 10 the reading falls between 107.47 ft and 108.18 ft, based on 19 years of records.
What is the water level of Charles River at First St at Cambridge today?
On Oct 18, 2026, 01:00 PM EDT, the water level was 107.94 ft. Steady over the last 24 hours.
Is Charles River at First St at Cambridge rising or falling?
Steady over the last 24 hours. Up 0.73 ft over the last 7 days.
Is the level of Charles River at First St at Cambridge normal?
Normal for mid-October. Compared with 19 years of daily readings for this time of year.
How often is this data updated?
The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.
Where does this data come from?
The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- U.S. Geological Survey
- Station code
usgs:01104705(Agency page)- Coordinates
42.36222, -71.07861(WGS84)- Vertical datum
- NAVD88
- Update interval
- every 15 minutes
- Licence
- Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision
Published series
| Parameter | Last value | Time (UTC) | Quality |
|---|---|---|---|
| Water level | 107.94 ft | 2026-10-18 17:00 | Provisional |
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How to cite
U.S. Geological Survey: Charles River at First St at Cambridge (usgs:01104705). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/massachusetts/charles-river-at-first-st-at-cambridge
How we check values
Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.
Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer