Utah offers diverse fly fishing experiences, especially as winter transitions into spring. March is a unique month with changing weather patterns, active fish, and the anticipation of prolific spring hatches. Whether you’re a seasoned angler or a newcomer, understanding the conditions and opportunities in Utah during March can enhance your fly fishing success.
March in Utah is characterized by fluctuating temperatures, ranging from cold mornings to mild afternoons. Snowmelt begins in the mountains, gradually increasing river flows and affecting water clarity. Most rivers and streams may still experience icy banks or occasional snow, so anglers should dress in layers and prepare for variable conditions.
Reservoirs and lakes might remain partially frozen, but tailwaters below dams and spring-fed rivers tend to be more accessible. These stable water sources often provide consistent fishing when other locations are less productive due to runoff or ice.
Trout, the predominant species in Utah’s rivers and streams, become increasingly active as water temperatures rise. In March, they start to feed more aggressively, capitalizing on emerging insect hatches and available forage. Brown, rainbow, and cutthroat trout are common targets, and their post-winter hunger makes them more receptive to well-presented flies.
March is notable for the first major hatches of the year, particularly:
- Blue-Winged Olives (BWO): These small mayflies are prolific in cold, overcast conditions and are a staple for early spring fly fishing.
- Midges: Present year-round, midges are especially important in March when other insect activity is limited.
- Stoneflies: Some rivers see early stonefly activity, with nymphs being effective throughout the month.
Anglers should carry a selection of dry flies, nymphs, and emergers in sizes 18–22 for BWOs and midges, along with larger stonefly nymphs. Streamers can also be productive, especially in deeper runs and pools.
Prime Locations for March Fly Fishing
- Provo River: Both the Middle and Lower Provo offer productive fishing, with tailwater flows providing consistent conditions.
- Weber River: Known for BWO and midge hatches, the Weber is accessible and rewarding in early spring.
- Green River: Below Flaming Gorge Dam, the Green River remains a year-round destination with clear water and active trout.
- Duchesne River: The Duchesne River has some nice blue-winged olive and midge hatches in March.
Tips for Successful March Fly Fishing
- Dress for the Weather: Layering is essential. Waterproof boots and gloves help manage cold, wet conditions.
- Fish Slow and Deep: As water temperatures are low, trout often hold in slower, deeper water. Weighted nymphs and slow streamer retrieves are effective.
- Pay Attention to Hatches: Even a small BWO or midge hatch can trigger feeding frenzies. Observe the water and adjust your flies accordingly.
- Check Regulations: Some waters may have special rules or closures during spawning seasons. Visit the Utah Division of Wildlife Resources website for current regulations.
March marks the beginning of spring fly fishing in Utah, offering a blend of winter’s challenges and spring’s promise. With proper preparation, attention to insect hatches, and a willingness to adapt to changing conditions, anglers can enjoy rewarding experiences on Utah’s rivers and streams. Whether targeting hungry trout on the Provo or exploring the Green River’s legendary tailwaters, March is a great month to get back on the water and kick off the season.
