Loading…
Want to be notified exactly when to fish for rainbow trout here?
Rainbow stocking
Lowland lake · Grant County · 973.6 acres · 1,340 ft
74,362 rainbows on Apr 21
5 months agoColumbia Basin Hatchery
Average size
Fry
under 0.1 lbeach
Planted small, to grow on — these are not catchable yet. Last catchable plant Oct 11.
2026 so far
74,362
123% of a normal year
Normal year
60,319
average of 11 seasons
Typical size
Fry
under 0.1 lb each
Stocking season
Oct
when the truck comes
This year against a 11-season average
2026normal
Recent plants
| Date | Species | Number | Size | Fish/lb |
|---|---|---|---|---|
| Apr 21 | Rainbow | 74,362 | Fry · under 0.1 lb each | 112 |
| Apr 16 | Rainbow | 10,000 | Fry · under 0.1 lb each | 96 |
| Apr 16 | Rainbow | 71,083 | Fry · under 0.1 lb each | 96 |
| May 16 | Rainbow | 89,457 | Fry · under 0.1 lb each | 95 |
| May 1 | Rainbow | 28,400 | Fry · under 0.1 lb each | 108 |
| Oct 11 | Rainbow | 6,451 | Catchables · 0.43 lb each | 2.3 |
| Oct 6 | Rainbow | 37,075 | Fingerlings · under 0.1 lb each | 20 |
| Mar 28 | Rainbow | 28,400 | Fry · under 0.1 lb each | 100 |
23 rainbow releases on record since 2015 · from WDFW's fish plants data, as published.
This lake on WDFWWDFW fishing prospects calendar
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainbow Trout | ||||||||||||
| Crappie | ||||||||||||
| Bass | ||||||||||||
| Bluegill | ||||||||||||
| Kokanee | ||||||||||||
| Walleye | ||||||||||||
| Yellow Perch | ||||||||||||
| Lake Whitefish |
quiet → best this month
WDFW rates rainbow trout best in April through June.
WDFW draws one calendar per species for the whole state, so it shows the season's shape rather than this lake's own record. Check the rules for when each species is open here. This lake on WDFW
be the first to say how Billy Clapp Lake fished
No catch reports yet for this water.
Currently
54°
Clearfeels like 51°
Tue
Favorable
64° 49°
wind 12 kt · 9% rain
Wed
Favorable
77° 49°
wind 11 kt · 1% rain
Thu
Favorable
83° 54°
wind 14 kt · 1% rain
Fri
Favorable
79° 57°
wind 5 kt · 1% rain
Sat
Favorable
80° 58°
wind 6 kt · 0% rain
Sun
Favorable
83° 60°
wind 5 kt · 0% rain
Mon
Fair
75° 58°
wind 27 kt · 0% rain
The current regulation for Billy Clapp Lake could not be confidently verified from a structured source, so this dashboard won't guess. Check the official WDFW sport fishing rules before fishing.
rules are shown exactly as published and cover every species at this location — they can change at any time, so always confirm with WDFW before fishingWant to know the best time to fish for rainbow trout this week at Billy Clapp Lake?
Sign in to viewRanked by fish counts, angler reports, rain, cloud and wind.
The counts, catch rates, conditions and weather on this page stay free.
Wind now
7mph
N · gusting 13
Gusts · 12h
18mph
holding or building
wind mph gusts