MEDIAN FLOW RATE · 30 DAY
884cfs 93.1% vs avg
Optimal band: 604–816 cfs
PERIOD HIGH
4,211cfs
PERIOD LOW
254cfs
RUNNABLE
16%
last 30 day in band
Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
23.6in
≈ normal
23.55 in of precipitation so far this year — about average for this point in the season (normal 20.96 in).
YTD Total
23.6in
This year so far
Normal to Date
21.0in
30-yr average
Typical Range
15.9–25.3in
10th–90th pct YTD
Departure
+12%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 1.22" · normal 1.19" (0.7–1.7)
Feb: 0.65" · normal 1.44" (0.4–2.2)
Mar: 2.75" · normal 2.43" (1.1–4.2)
Apr: 8.41" · normal 4.35" (2.6–6.0)
May: 2.81" · normal 5.37" (2.9–7.8)
Jun: 5.61" · normal 5.21" (2.5–8.6)
Jul: 2.10" (so far)· normal 3.87" (1.3–5.5)
Aug: normal 4.03" (1.4–7.2)
Sep: normal 3.50" (1.6–5.9)
Oct: normal 3.02" (0.9–6.2)
Nov: normal 2.08" (0.8–4.3)
Dec: normal 1.58" (0.5–2.6)
Baseline 1991–2020 · Source: Open-Meteo03:57 PM
Your History · South Skunk River near Ames, IA
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Station Location
42.0666, -93.6202Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-07 00:00 UTC
Site #05470000·USGS
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