Port Washington Marina
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Around Port Washington Marina
Data Source: Recreation.gov · Public land: USGS PAD-US
Typical flow by month
1930 to 2026
The water at Port Washington Marina typically runs highest in March, at a median 130 cfs, and lowest in August, at 20 cfs. The highest flow on record for any single day is 3,320 cfs, in 1952.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 36 | 17 to 67 |
| February | 39 | 19 to 80 |
| March | 130 | 64 to 279 |
| April | 126 | 75 to 212 |
| May | 71 | 44 to 131 |
| June | 40 | 22 to 87 |
| July | 24 | 12 to 46 |
| August | 20 | 9.3 to 37 |
| September | 22 | 9.4 to 36 |
| October | 26 | 13 to 49 |
| November | 40 | 19 to 71 |
| December | 37 | 18 to 72 |
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 87 years of record. Statistics published by the US Geological Survey for Cedar Creek near Cedarburg, WI (site 04086500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Current conditions
Today · Fri
56Maybe/ 100
3.6 ft waves · Wind 14 kt
CloudyWaves 4.8 ft46°FRain 2%Wind 13 kt, gusts 28
Waves
3.6 ft @ 5s
Wind
5 kt
Gusts 28 kt
Air
42°F
Streamflow
67 cfs
Normal (72nd)
Water level
5.72 ft
Air quality
18 Good
Harrington Beach monitor, 13 km
National Weather ServiceBelow flood stage
Flood stage 10 ft. NWS reads 5.67 ft here.
NWS issues forecasts here only during high water.
Forecast from Open-Meteo global models (NOAA & ECMWF). Flood stages and forecasts: NOAA National Weather Service. Air quality: Wisconsin Dept. of Natural Resources via EPA AirNow. Preliminary data, not verified. See full conditions →
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