River remains in optimal shape , with 288cfs (medium to medium-low, just about perfect & very wadeable) through the Catch & Release area and water temps are mid 50s to mid 60's, making it fishable at least downstream as far as Collinsville currently. Temps are lowest near the dam up in Riverton, and morning water temps are lowest of all. Needhami's averaging a #22-26 are on the water (a small brown mayfly) from 7am to 1pm (approximately). Needhami Spinners dropping from previous day's hatches come first, then the duns in the later morning. There are still Winter/Summer Caddis #22-24 in early/mid mornings with Tan Caddis in #16-20 hatching sporadically from mid/late morning through the day, and they are back on the water egg-laying in the evening (they hatch best in riffled to faster water). Isonychia are lighter than they were but still hatching late afternoon thru early/mid evening, they are running about #10-14 and hatch in the faster, choppy water (pool heads, riffles, faster runs, pocket water). Sulfurs averaging a #18 are on the water in the evening with spinners at dusk- they are very sparse in the Catch & Release section and are hatching best upriver (I've seen them hatching well into August close to the dam) above the Still River up to the dam. Blue Wing Olives #20-24 are hatching in the late afternoon through evening (as well with spinners at dusk). Ants & beetles in various sizes are fooling fish in the daytime, including Mini Chernobyls in #12-14.
Currently effective nymphs include: Hot Spot Nymphs #14-20, #10 Tungsten Caroten Jig, Wade's Clinger Nymph #14-16, Olive nymphs #16-20, Yellow Sparkle Prince #14-18, Sulfur Nymph #16, Rainbow Warrior #16, Caddis Pupa & Larva in both tan & olive/green #10-18, Jig nymphs #10-16, Pheasant Tails #16-20, Isonychia Nymphs #10-12, Fox Squirrel Nymph #10-14, Prince Nymph #10-18, and Golden/Brown/Black Stoneflies #6-12 are all working well at moments. Streamers are effective in the early AM and again toward dark- look for either low light or murky water for best results during this time of the year on the Farmington. Mice, Rats and giant Streamers are working at night.
-Torrey