MEDIAN FLOW RATE · 7 DAY
255cfs 11.0% vs avg
Optimal band: 219–297 cfs
PERIOD HIGH
261cfs
PERIOD LOW
254cfs
RUNNABLE
100%
last 7 day in band
Gauge Height
3.89ft
Water Temperature
73.2°F
Weather Map
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Precipitation History
Precipitation · YTD
DryDrier than normal
2026 to date
30.9in
-17% vs normal
30.93 in of precipitation so far this year, 17% below the 30-year normal of 37.13 in for this point in the season.
YTD Total
30.9in
This year so far
Normal to Date
37.1in
30-yr average
Typical Range
24.7–50.9in
10th–90th pct YTD
Departure
-17%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 7.52" · normal 10.32" (2.9–18.3)
Feb: 10.73" · normal 8.10" (3.2–14.1)
Mar: 3.61" · normal 8.54" (4.2–13.9)
Apr: 6.44" · normal 5.62" (3.2–10.0)
May: 1.25" · normal 3.13" (0.8–6.6)
Jun: 1.39" · normal 1.30" (0.3–2.9)
Jul: 0.00" (so far)· normal 0.21" (0.0–0.5)
Aug: normal 0.38" (0.0–0.9)
Sep: normal 1.21" (0.0–2.7)
Oct: normal 4.18" (1.0–7.9)
Nov: normal 8.69" (3.0–13.6)
Dec: normal 12.20" (4.5–20.9)
Baseline 1991–2020 · Source: Open-Meteo22:37 UTC
Your History · ILLINOIS RIVER NEAR AGNESS, OR
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Station Location
42.5449, -124.0519Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-13 00:00 UTC
Site #14378200·USGS
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