MEDIAN FLOW RATE · 1 YEAR
244cfs 30.0% vs avg
Optimal band: 124–168 cfs
PERIOD HIGH
992cfs
PERIOD LOW
68cfs
RUNNABLE
17%
last 1 year in band
Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
19.9in
≈ normal
19.9 in of precipitation so far this year — about average for this point in the season (normal 19.03 in).
YTD Total
19.9in
This year so far
Normal to Date
19.0in
30-yr average
Typical Range
15.3–24.9in
10th–90th pct YTD
Departure
+5%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 1.47" · normal 1.16" (0.6–2.0)
Feb: 0.64" · normal 1.18" (0.7–1.8)
Mar: 2.65" · normal 2.38" (1.1–3.5)
Apr: 6.11" · normal 3.64" (1.6–5.7)
May: 2.69" · normal 4.55" (3.1–6.6)
Jun: 4.91" · normal 5.31" (3.3–7.8)
Jul: 1.42" (so far)· normal 3.82" (2.3–5.9)
Aug: normal 3.64" (1.9–5.0)
Sep: normal 3.26" (1.1–5.7)
Oct: normal 2.63" (0.9–4.6)
Nov: normal 1.94" (0.7–3.3)
Dec: normal 1.47" (0.4–2.3)
Baseline 1991–2020 · Source: Open-Meteo12:08 PM
Your History · SOUTH FORK ZUMBRO RIVER AT ROCHESTER, MN
Track your history
Sign in to track your sessions at SOUTH FORK ZUMBRO RIVER AT ROCHESTER, MN — best days, monthly trends, and time on the water.
Sign inSPONSORED
Station Location
44.0617, -92.4663Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-07 00:00 UTC
Site #05372995·USGS
Create a free account to save favorites, set flow alerts, and track conditions
