MEDIAN FLOW RATE · 1 YEAR
1,764cfs 46.8% vs avg
Optimal band: 88–120 cfs
PERIOD HIGH
8,225cfs
PERIOD LOW
20cfs
RUNNABLE
5%
last 1 year in band
Gauge Height
8.62ft
Weather Map
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Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
25.7in
≈ normal
25.68 in of precipitation so far this year — about average for this point in the season (normal 24.56 in).
YTD Total
25.7in
This year so far
Normal to Date
24.6in
30-yr average
Typical Range
18.0–30.7in
10th–90th pct YTD
Departure
+5%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 1.55" · normal 3.02" (1.3–5.1)
Feb: 0.95" · normal 2.52" (1.1–4.2)
Mar: 6.83" · normal 3.55" (1.7–5.2)
Apr: 4.84" · normal 4.66" (2.5–6.8)
May: 4.17" · normal 4.98" (2.3–8.4)
Jun: 5.71" · normal 4.21" (1.6–6.5)
Jul: 1.63" (so far)· normal 3.58" (1.8–6.0)
Aug: normal 2.83" (1.2–4.7)
Sep: normal 3.09" (1.1–5.5)
Oct: normal 3.26" (1.6–5.5)
Nov: normal 3.56" (1.8–6.2)
Dec: normal 2.64" (1.7–3.7)
Baseline 1991–2020 · Source: Open-Meteo22:38 UTC
Your History · KASKASKIA RIVER NEAR COWDEN, IL
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Station Location
39.2299, -88.8418Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-13 00:00 UTC
Site #05592100·USGS
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