MEDIAN FLOW RATE · 1 YEAR
843cfs 2.7% vs avg
Optimal band: 224–302 cfs
PERIOD HIGH
2,560cfs
PERIOD LOW
126cfs
RUNNABLE
25%
last 1 year in band
Precipitation History
Precipitation · YTD
WetWetter than normal
2026 to date
15.3in
+22% vs normal
15.31 in of precipitation so far this year, 22% above the 30-year normal of 12.53 in for this point in the season.
YTD Total
15.3in
This year so far
Normal to Date
12.5in
30-yr average
Typical Range
9.1–16.1in
10th–90th pct YTD
Departure
+22%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 1.56" · normal 1.77" (1.0–2.6)
Feb: 2.06" · normal 1.60" (0.6–3.0)
Mar: 4.22" · normal 1.76" (1.0–3.0)
Apr: 2.38" · normal 2.15" (1.4–3.1)
May: 2.52" · normal 2.51" (1.6–3.5)
Jun: 2.29" · normal 2.50" (1.1–3.6)
Jul: 0.27" (so far)· normal 0.80" (0.1–1.8)
Aug: normal 0.81" (0.2–1.7)
Sep: normal 1.31" (0.2–2.5)
Oct: normal 1.72" (0.6–2.6)
Nov: normal 1.87" (0.8–3.3)
Dec: normal 1.92" (1.0–2.7)
Baseline 1991–2020 · Source: Open-Meteo01:11 AM
Your History · Rock Creek near Clinton MT
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Weather Conditions
WEATHER CONDITIONS
TODAY
86°
57°
MON
85°
55°
TUE
86°
60°
WED
89°
61°
THU
84°
56°
FRI
90°
56°
SAT
94°
60°
FISH INDEX
Temperature
Too Hot
Wind
Light
Pressure
Stable
Moon Phase
Good
DAYLIGHT
SUNRISE
05:47 AM
SUNSET
09:30 PM
15H 43M OF DAYLIGHT
MOON PHASE
Last Quarter
64% illuminated
Station Location
46.7223, -113.6831Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-06 00:00 UTC
Site #12334510·USGS
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