A still, cloudless night on the water, with barely a breath of wind and pressure easing off. Give the backs of creeks if water is moving in the first hour at Trevarton Reservoir. Everything points to the night. Push the good hours hard and rest through the dead ones. Fish follow the bait in autumn, so find one to find the other.
The bites are average now
Night
Trevarton Reservoir is one of the Boulder County listings for Colorado. What surrounds it is rolling hill. About 9 acres of surface, which puts the far bank inside easy sight. The nearest place of any size is Lyons, 4.8 miles away. Niwot is 5.1 miles and Longmont 6 miles. The nearest boundary is well away, so one set of rules covers the water.
We hold no survey for this water; read the slope of the shoreline instead. Look for where the old bank line still shows under the surface. Built water gives depth close in, which suits a bank angler. Boulder County records list black-spotted cutthroat trout, brook trout, brown trout, bluegill and rainbow trout among the fish reported. Species recorded across the county may be limited to a few waters. At Trevarton Reservoir the first feature you find is worth twenty minutes.
Averages here run 71°F at the top of summer and 30°F at the bottom of winter. Mild ends to the year keep the season long. Some winters give nothing at all, so plan for open water. February into May fishes hardest as the water warms. That shapes the year on Trevarton Reservoir. Wind on the bank for a day or two lifts the fishing there.
Public data does not answer the access question here. Mapped as intermittent, it fills after rain and shrinks between. Access points are not mapped for this water, which suits people who like quiet. Light line and small metal for the trout; a fly rod earns its place on calm evenings. Where a permit is needed, the nearest town usually sells it. Barbless rules turn up on managed water more often than not. If the gate is shut, Davis Reservoir at 0.7 miles is the nearest alternative. Check the current arrangement for Trevarton Reservoir.
46%
The bites are average now
| 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| 2.5 | 2.5 | 1.6 | 1.2 | 2.1 | 1.5 | 2.1 | 1.6 | 0.9 | 1.4 | 2 | 2.7 | 4 | 3.4 | 1.8 | 2.8 | 3.2 | 1.7 | 2.8 | 2 | 2.4 | 3.1 | 3.5 | 3 |
| 41° | 42° | 42° | 40° | 40° | 40° | 39° | 39° | 46° | 53° | 58° | 62° | 65° | 67° | 67° | 67° | 65° | 59° | 53° | 52° | 51° | 50° | 50° | 48° |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 30.14 | 30.13 | 30.11 | 30.1 | 30.09 | 30.08 | 30.07 | 30.08 | 30.08 | 30.07 | 30.05 | 30.03 | 29.99 | 29.96 | 29.95 | 29.94 | 29.95 | 29.95 | 29.96 | 29.98 | 29.94 | 29.94 | 29.92 | 29.89 |
| 52 | 50 | 49 | 52 | 52 | 51 | 54 | 57 | 47 | 37 | 32 | 29 | 28 | 24 | 23 | 24 | 26 | 34 | 39 | 40 | 42 | 43 | 43 | 45 |
Sam
AI Fishing Assistant for Trevarton Reservoir
Morning
Afternoon
Evening
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time