MEDIAN FLOW RATE · 30 DAY
7,699cfs 87.4% vs avg
Optimal band: 1,306–1,766 cfs
PERIOD HIGH
8,388cfs
PERIOD LOW
622cfs
RUNNABLE
13%
last 30 day in band
Precipitation History
Precipitation · YTD
WetWetter than normal
2026 to date
24.8in
+17% vs normal
24.76 in of precipitation so far this year, 17% above the 30-year normal of 21.26 in for this point in the season.
YTD Total
24.8in
This year so far
Normal to Date
21.3in
30-yr average
Typical Range
16.2–26.1in
10th–90th pct YTD
Departure
+17%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 1.30" · normal 1.26" (0.7–2.0)
Feb: 0.83" · normal 1.54" (0.5–2.5)
Mar: 3.28" · normal 2.61" (1.0–4.8)
Apr: 7.77" · normal 4.35" (2.9–6.2)
May: 4.12" · normal 5.36" (3.1–8.5)
Jun: 6.52" · normal 5.07" (2.1–8.1)
Jul: 0.92" (so far)· normal 3.80" (1.7–6.0)
Aug: normal 4.05" (1.2–6.9)
Sep: normal 3.56" (1.8–6.0)
Oct: normal 2.96" (1.0–5.6)
Nov: normal 2.13" (0.7–4.8)
Dec: normal 1.64" (0.6–2.7)
Baseline 1991–2020 · Source: Open-Meteo03:56 PM
Your History · South Skunk River at Colfax, IA
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Station Location
41.6818, -93.2468Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-07 00:00 UTC
Site #05471050·USGS
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