Diversey Harbor
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Around Diversey Harbor
Source: USGS GNIS · Public land: USGS PAD-US
Typical flow by month
2002 to 2010
The water at Diversey Harbor typically runs highest in May, at a median 591 cfs, and lowest in November, at 397 cfs. The highest flow on record for any single day is 5,150 cfs, in 2010.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 417 | 343 to 503 |
| February | 406 | 348 to 548 |
| March | 529 | 422 to 728 |
| April | 486 | 420 to 689 |
| May | 591 | 486 to 754 |
| June | 585 | 505 to 719 |
| July | 536 | 493 to 615 |
| August | 586 | 521 to 686 |
| September | 526 | 453 to 597 |
| October | 433 | 368 to 566 |
| November | 397 | 354 to 490 |
| December | 429 | 344 to 573 |
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 8 years of record. Statistics published by the US Geological Survey for NB Chicago River at Grand Avenue at Chicago, IL (site 05536118). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Current conditions
Today · Sat
78Go/ 100
CloudyWaves 3.0 ft51°FRain 0%Wind 7 kt, gusts 17
Waves
3.0 ft @ 5s
Wind
6 kt
Gusts 17 kt
Air
37°F
Water level
-1.90 ft
Above normal (84th)
Air quality
36 Good
CHI_SP monitor, 8 km
National Weather ServiceBelow flood stage
Flood stage 3 ft. NWS reads -2.11 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: Illinois EPA via EPA AirNow. Preliminary data, not verified. See full conditions →
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