Harper Lake trout stocking
Boulder County, Colorado · lake · 5,604 ft elevation
Harper Lake was last stocked 7 months ago (Mar 13 to 19, 2026). We have 10 stockings on record since Apr 5, 2016, 2 in the last 12 months. Most stockings come in April.
- Number 8 of 17 stocked waters in Boulder County by stocking days.
- Stocked about as often as a typical Colorado water on our record.
Weather at Harper Lake
- Tonight56°FChance Rain Showers50% rain · wind 2 to 7 mph
- Tuesday66°FChance Rain Showers32% rain · wind 2 to 6 mph
- Tuesday Night54°FRain Showers Likely61% rain · wind 6 mph
- Wednesday63°FRain Showers Likely64% rain · wind 3 to 9 mph
- Wednesday Night50°FChance Rain Showers54% rain · wind 6 to 9 mph
- Thursday64°FChance Rain Showers then Mostly Sunny42% rain · wind 7 mph
Forecast from the National Weather Service for this location, refreshed hourly.
When is Harper Lake stocked?
Most stockings come in April.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | |||||||||||
| 2025 | 1 | |||||||||||
| 2024 | 1 | |||||||||||
| 2023 | 1 | |||||||||||
| 2022 | 1 | |||||||||||
| 2021 | 1 | |||||||||||
| 2020 | 1 | |||||||||||
| 2019 | 1 |
Stocking history
20261 stocking
| Date | Species | Since previous |
|---|---|---|
Week of Mar 13Latest Mar 13 to Mar 19 | Trout | 22 weeks |
20251 stocking
| Date | Species | Since previous |
|---|---|---|
Week of Oct 10 Oct 10 to Oct 16 | Trout | 77 weeks |
20241 stocking
| Date | Species | Since previous |
|---|---|---|
Week of Apr 19 Apr 19 to Apr 25 | Trout | 416 days |
20231 stocking
- Week of Feb 28 trout
20221 stocking
- Week of Apr 15 trout
20211 stocking
- Week of Apr 27 trout
20201 stocking
- Week of Apr 16 trout
20191 stocking
- Week of May 6 trout
20181 stocking
- Week of Apr 17 trout
20161 stocking
- Week of Apr 5 trout
From Colorado fish and wildlife agency reports, collected nightly and kept after the agency takes them down. Agencies revise reports; check the agency's report before you go. Seasons and limits: Colorado fishing regulations.
Where is Harper Lake?
Boulder County, Colorado. The marker is the agency's location for this water; streams are often stocked at several access points.
Stocked waters near Harper Lake
- Park Lakelake · 1 mistocked Oct 31, 2025
- Klubert-Warembourg Pondpond · 1 mistocked Oct 3, 2025
- Waneka Lakelake · 3 mistocked May 1, 2026
- Thunderbird Lakelake · 4 mistocked Nov 10, 2017
- Erie Lakelake · 4 mistocked Oct 4, 2024
- KOA Lake - Boulderlake · 4 mistocked Apr 3, 2026
- Viele Lakelake · 5 mistocked Feb 26, 2026
- Thomas Reservoirlake · 6 mistocked May 22, 2026
All stocked waters in Boulder CountyStocked this week in Colorado
Questions about Harper Lake
- When was Harper Lake last stocked?
- The latest reported stocking was Mar 13 to 19, 2026, according to Colorado agency reports.
- How often is Harper Lake stocked?
- It was stocked 2 times in the last 12 months. Across all years on record, most stockings come in April.
- Is Harper Lake stocked often?
- Number 8 of 17 stocked waters in Boulder County by stocking days. Stocked about as often as a typical Colorado water on our record. We count each day the agency reported stocking it.
Stocking report from Colorado Parks and Wildlife, which lists the waters stocked with catchable trout (about 10 inches) in the week before each report. Locations from the Colorado Fishing Atlas.