MEDIAN FLOW RATE · 30 DAY
363cfs 66.0% vs avg
Optimal band: 284–384 cfs
PERIOD HIGH
544cfs
PERIOD LOW
254cfs
RUNNABLE
65%
last 30 day in band
Precipitation History
Precipitation · YTD
WetWetter than normal
2026 to date
22.0in
+26% vs normal
21.97 in of precipitation so far this year, 26% above the 30-year normal of 17.44 in for this point in the season.
YTD Total
22.0in
This year so far
Normal to Date
17.4in
30-yr average
Typical Range
12.5–22.5in
10th–90th pct YTD
Departure
+26%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 1.77" · normal 1.65" (0.8–2.8)
Feb: 0.76" · normal 1.61" (0.6–3.0)
Mar: 3.54" · normal 2.30" (0.9–4.3)
Apr: 6.53" · normal 3.65" (2.6–4.9)
May: 1.81" · normal 3.74" (2.3–5.4)
Jun: 6.85" · normal 3.90" (1.8–6.0)
Jul: 0.70" (so far)· normal 3.20" (2.2–4.9)
Aug: normal 3.60" (1.9–5.3)
Sep: normal 2.87" (1.3–4.3)
Oct: normal 2.83" (1.1–4.7)
Nov: normal 2.09" (0.9–3.6)
Dec: normal 1.88" (0.8–3.6)
Baseline 1991–2020 · Source: Open-Meteo01:09 AM
Your History · ROCK RIVER AT WATERTOWN, WI
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Weather Conditions
WEATHER CONDITIONS
TODAY
82°
66°
MON
85°
62°
TUE
81°
59°
WED
83°
65°
THU
81°
67°
FRI
79°
63°
SAT
82°
62°
FISH INDEX
Temperature
Warm
Wind
Light
Pressure
Rising — Slow
Moon Phase
Good
DAYLIGHT
SUNRISE
05:21 AM
SUNSET
08:37 PM
15H 16M OF DAYLIGHT
MOON PHASE
Last Quarter
64% illuminated
Station Location
43.1881, -88.7261Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-06 00:00 UTC
Site #05425500·USGS
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