Lon Hagler Reservoir trout stocking
Larimer County, Colorado · lake · 5,134 ft elevation
Lon Hagler Reservoir was last stocked 5 months ago (May 1 to 7, 2026). We have 53 stockings on record since Mar 17, 2015, 4 in the last 12 months. Most stockings come in March to May and November.
- The most stocked water in Larimer County (53 stocking days on record).
- Stocked more often than 97% of Colorado waters on our record.
River conditions
Nearest USGS gage: BIG THOMPSON RIVER AT LOVELAND, CO. (8 km away, on a different stream or lake).
- Flow
- 27 cfs
- lower than usual for the last six weeks
- Gage height
- 0.98 ft
Latest reading Sep 29, 2026, 6:30 AM UTC. USGS data are provisional. Gage page at USGS.
Weather at Lon Hagler Reservoir
- Overnight56°FSlight Chance Rain Showers19% rain · wind 6 mph
- Tuesday69°FChance Showers And Thunderstorms26% rain · wind 6 mph
- Tuesday Night54°FChance Rain Showers31% rain · wind 5 mph
- Wednesday66°FChance Rain Showers48% rain · wind 3 to 9 mph
- Wednesday Night51°FRain Showers Likely56% rain · wind 6 to 12 mph
- Thursday64°FSlight Chance Rain Showers then Mostly Sunny21% rain · wind 6 to 9 mph
Forecast from the National Weather Service for this location, refreshed hourly.
When is Lon Hagler Reservoir stocked?
Most stockings come in March to May and November.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | ||||||||||
| 2025 | 1 | 2 | 1 | 1 | ||||||||
| 2024 | 1 | 1 | 1 | 1 | 2 | |||||||
| 2023 | 1 | 1 | 1 | |||||||||
| 2022 | 1 | 1 | 2 | 1 | ||||||||
| 2021 | 1 | 1 | 2 | 2 | ||||||||
| 2020 | 3 | |||||||||||
| 2019 | 2 | 1 | 2 |
Stocking history
20262 stockings
| Date | Species | Since previous |
|---|---|---|
Week of May 1Latest May 1 to May 7 | Trout | 64 days |
Week of Feb 26 Feb 26 to Mar 4 | Trout | 83 days |
20255 stockings
| Date | Species | Since previous |
|---|---|---|
Week of Dec 5 Dec 5 to Dec 11 | Trout | 4 weeks |
Week of Nov 7 Nov 7 to Nov 13 | Trout | 28 weeks |
Week of Apr 25 Apr 25 to May 1 | Trout | 3 weeks |
Week of Apr 4 Apr 4 to Apr 10 | Trout | 3 weeks |
Week of Mar 14 Mar 14 to Mar 20 | Trout | 15 weeks |
20246 stockings
| Date | Species | Since previous |
|---|---|---|
Week of Nov 29 Nov 29 to Dec 5 | Trout | 3 weeks |
Week of Nov 8 Nov 8 to Nov 14 | Trout | 3 weeks |
Week of Oct 18 Oct 18 to Oct 24 | Trout | 25 weeks |
Week of Apr 26 Apr 26 to May 2 | Trout | 51 days |
Week of Mar 6 Mar 6 to Mar 12 | Trout | 30 days |
Week of Feb 5 Feb 5 to Feb 11 | Trout | 104 days |
20233 stockings
- Week of Oct 24 trout
- Week of May 12 trout
- Week of Apr 14 trout
20225 stockings
- Week of Nov 16 trout
- Week of May 20 trout
- Week of May 6 trout
- Week of Apr 22 trout
- Week of Mar 24 trout
20216 stockings
- Week of Oct 28 trout
- Week of Oct 13 trout
- Week of May 31 trout
- Week of May 21 trout
- Week of Mar 30 trout
- Week of Feb 26 trout
20203 stockings
- Week of Mar 25 trout
- Week of Mar 17 trout
- Week of Mar 6 trout
20195 stockings
- Week of Nov 12 trout
- Week of Nov 1 trout
- Week of May 15 trout
- Week of Mar 5 trout
- Week of Mar 4 trout
20186 stockings
- Week of Oct 30 trout
- Week of Sep 12 trout
- Week of May 4 trout
- Week of Apr 17 trout
- Week of Mar 21 trout
- Week of Mar 6 trout
20173 stockings
- Week of Nov 10 trout
- Week of Apr 4 trout
- Week of Mar 7 trout
20165 stockings
- Week of Nov 8 trout
- Week of May 17 trout
- Week of Apr 26 trout
- Week of Mar 29 trout
- Week of Mar 8 trout
20154 stockings
- Week of Nov 10 trout
- Week of May 26 trout
- Week of Apr 21 trout
- Week of Mar 17 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 Lon Hagler Reservoir?
Larimer County, Colorado. The marker is the agency's location for this water; streams are often stocked at several access points.
Stocked waters near Lon Hagler Reservoir
- Loveland Service Center Pondpond · 3 mistocked Oct 31, 2025
- Carter Lakelake · 4 mistocked Jul 4, 2025
- Flatiron Reservoirlake · 4 mistocked Jun 5, 2026
- North Lake Park Pondpond · 5 mistocked May 1, 2026
- Roberts Lakelake · 5 mistocked Feb 26, 2026
- Pinewood Reservoirlake · 7 mistocked Jun 5, 2026
- Boyd Lakelake · 8 mistocked Jun 5, 2026
- Johnstown Reservoirlake · 10 mistocked May 2, 2025
All stocked waters in Larimer CountyStocked this week in Colorado
Questions about Lon Hagler Reservoir
- When was Lon Hagler Reservoir last stocked?
- The latest reported stocking was May 1 to 7, 2026, according to Colorado agency reports.
- How often is Lon Hagler Reservoir stocked?
- It was stocked 4 times in the last 12 months. Across all years on record, most stockings come in March to May and November.
- Is Lon Hagler Reservoir stocked often?
- The most stocked water in Larimer County (53 stocking days on record). Stocked more often than 97% of Colorado waters 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.