MEDIAN FLOW RATE · 7 DAY
31cfs 42.3% vs avg
Optimal band: 26–36 cfs
PERIOD HIGH
40cfs
PERIOD LOW
20cfs
RUNNABLE
63%
last 7 day in band
Precipitation History
Precipitation · YTD
DryDrier than normal
2026 to date
30.4in
-22% vs normal
30.38 in of precipitation so far this year, 22% below the 30-year normal of 39.18 in for this point in the season.
YTD Total
30.4in
This year so far
Normal to Date
39.2in
30-yr average
Typical Range
29.7–49.8in
10th–90th pct YTD
Departure
-22%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 7.55" · normal 9.83" (5.8–13.2)
Feb: 5.36" · normal 7.12" (3.4–10.6)
Mar: 9.56" · normal 7.89" (4.1–12.7)
Apr: 3.19" · normal 6.28" (3.0–9.4)
May: 2.36" · normal 4.50" (2.1–6.5)
Jun: 2.32" · normal 3.45" (1.3–5.5)
Jul: 0.04" (so far)· normal 1.22" (0.4–2.2)
Aug: normal 1.51" (0.4–2.8)
Sep: normal 3.23" (0.7–6.1)
Oct: normal 6.79" (3.1–10.6)
Nov: normal 10.75" (4.6–16.9)
Dec: normal 10.14" (6.5–15.9)
Baseline 1991–2020 · Source: Open-Meteo06:12 AM
Your History · MASHEL RIVER NEAR LA GRANDE, WA
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Weather Conditions
WEATHER CONDITIONS
TODAY
71°
50°
FRI
70°
54°
SAT
76°
49°
SUN
77°
46°
MON
81°
53°
TUE
76°
48°
WED
70°
49°
FISH INDEX
Temperature
Ideal
Wind
Calm
Pressure
Stable
Moon Phase
Average
DAYLIGHT
SUNRISE
05:19 AM
SUNSET
09:06 PM
15H 47M OF DAYLIGHT11H 20M REMAINING
MOON PHASE
Waning Gibbous
94% illuminated
Station Location
46.8567, -122.3026Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-02 09:46 UTC
Site #12087000·USGS
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