In reply to Jon Stewart:
I find your lack of faith disturbing. Also I've heard rumours you voluntarily went back to Lower Falcon, you treacherous cur.
Tyler that is kind, but i'm sure many others have better experience and local knowledge possibly including Jon. The non-summer definitely seems to be the key factor here.
From my knowledge of what has been mentioned:
Gimmer: exposed, open, and likely as clean as any. Slightly sparse choice at the grades.
Dow: sheltered from Westerlies which would be a mixed blessing, may not dry out as well, probably best to get a recent report.
Slate: good in westerlies, plenty at the grades, and very easy to check out. May be seepage and not the classic Lakes trad experience. TYA might require pre-placed gear. Second Coming is good.
Burnt Crag: open and clean and sunny, lots of choice at the grade so if half the routes are seeping the other half would still give a good day out.
Far Hill Crag: very good but tilted a bit NW and can have a small bit of greenness. If it's dry and warm then great, otherwise a gamble. But could be combined with the crag opposite (Upper Blake Rigg or whatever).
(In general Duddon does have some decent accessible cragging at the grades)
Reecastle: Only gets the evening sun and can hold the damp, not a reliable option on a showery day despite it's brilliance. Easy to check out from the car.
Falcon Crags: Upper very exposed and should dry quick (summit), only 2 routes but both great. Lower takes a bit of seepage but loads of choice at the lower end of the desired grade band, easy to get up for a closer look. Delightful place.
Bowderstone: Only a couple of regularly climbed routes at the desired grades, has some tree shelter and a bit of a hoof.
Iron Crag: Some great stuff at those grades. East-facing so sheltered from the westerlies, but seems fairly clean. Possibly not had much attention?
Raven Thirlmere: regular reports are it's mostly green and unclimbed apart from a few classics, but those are good enough for a great day. Again it depends on the "lack of drying breeze vs shelter aspect".
Armathwaite: In the lakes rainshadow, and much of it has had tree clearance so now very open and dries quickly. Not classic Lakes trad again but if you like sketchy, bold, but interesting sandstone then a very safe bet. If you don't like that....pfffttt....seek help.
Raven Langdale: Reliable bet, open and quick drying, not a great choice in the lower extremes but in the mid+ ones there's some excellent routes. Could be very busy given that 90% of them start from the Pluto stance or bisect it.
In short it's all a gamble. Open SW-facing crags are more reliable but can have less choice or be busier. E-facing crags often have great choice at those grades but may be a bit grim or seepy.
Other ideas:
Hardknott - easy access, open, can be combined with Eskdale granite for example.
Black Crag Wrynose - small, popular, not exactly Scafell but amazing rock and guaranteed clean and quick drying.
Long Band Crag - it's a slog, and there's limited warm-ups, but it's open and sunny and the solid E5 climber will have some very impressive choices in a small area.
Gouther - only for 1 E3 on the first bit and the One Step Beyond slab (that and the E4 6b direct), but that slab will dry instantly. May get a smidgeon less rain than central lakes.
Goat (past Reecastle) - small and not classic Lakes but a reasonable selection at the grade, more exposed and quicker drying if you're waiting for the evening sun on Reecastle.
Bramcrag Qu.....only joking.