You want A/C. For resale value. And, because you'll get used to the mild climate. Then you'll have a few warm sunny days, maybe 70 and sunny, and, believe it or not, you'll really appreciate having A/C. Take it from a long time NW coastal resident.
Edit: Yeah, just like wlaboda said.....
2012 JKU Rubicon
You want the AC for the resale. I could not live without AC, and would never buy a vehicle without it...regardless of the deal. Plus when it rains, the compressor is nice to dry the inside and not have condensation.
2014 JKU Rubicon- all white with tan leather
LOD front bumper, AEV rear bumper, TeraFlex tire carrier, Shrockworks sliders, Method Standard wheels, 35" MTR Kevlars, Englewood driveshafts, Synergy 3" Lift, Rancho 9000XLs, Artec truss, Teraflex C-gussets, Grabars, HotHead Liners, MORE dead pedal, Tuffy underseat box, Uniden 520 XL, 10lb CO2 tank...
It can get hot and muggy here too in the summer, but Seattle is somewhere that you'll survive without A/C. There are a couple of months where it's hot and humid often enough that not having A/C would be annoying, but you can always take out the back windows or drop the top all together. That being said, only the Western part of the state has the moderate rainy climate. Eastern Washington, where lots of the good wheeling and the best summer weekend spots are, can get very hot.
HK makes a good point though that vehicles around here without A/C don't sell well and condensation on the windshield is almost a daily occurance.
July through September are pretty nice and the NW usually has a week or two of 90+ each year. Not muggy by your standards but warm none the less. The other good thing for A/C is traffic. Like every where it's bad and getting worse, so the A/C is nice when you're going nowhere fast with 300 of your closest friends.
You will need the A/C when you get into a defog situation. That you will use a lot in the NE. I live in Utah but have been there many times for long periods on business. My Cherokee made the drive there many times. Buy the A/C!
You may not need it in the Seattle area, but if you want go to the other 70% of the state in the summer you'd wish you had it. I bought my base Sport with 3 options, AC, hardtop, 3.73s. After wheeling my TJ for 6 years and no AC, I damn well ensured I got it in my JK. The hardtop is for the 8 months of winter and I bought a softtop from Craigs list for the 4 months of spring, summer and fall.
2001 Jeep TJ Sport Rubiclone, SOLD
2013 JK 2 Door Sport Rubiclone 6 speed, RC 3.5" Series II, JKS front TB, TF rear TB brkt, 315/70/17 GY Duratracs, 17x8 ProComp 7005s, Rubi 44s
I just got a '14 Anvil 2DR. No A/C. Had it on the '07 JKU I traded in. Never ran it. Too easy to drop the top. Ran the '07 for close to 4 years that way. I know the A/C comes on with the defrost. Not really worried about not having that. I could not find a '14 with just a few options. It was all or nothing. Took a couple of weeks to find it. Got the 24B optioned one for 24,8. All the 24S packaged rigs were 29,9+
Ok,,, You decide to go south some July or August day for a trip to Southern California. You drive through Redding where it is 115-118 degrees. You might want A/C then.
Or you want to venture outside the Emerald City and head SE to the Tri-Cities where an A/C is a very good thing to have in the summer when one of those dust storms pops up!
__________________ But the wisdom that is from above is first pure, then peaceable, gentle, and easy to be intreated, full of mercy and good fruits, without partiality, and without hypocrisy. James 3:17 (KJV)
Hm... I guess I'll have to go with the A/C then. As I currently live in Miami, I'm just so used to cranking up the A/C because it's so hot. Although now, there's been a nice cold front, so that means the windows are usually down.
But yeah, I know what you guys mean... that mugginess is no fun. A/C it is!
Now... I do plan on going up to the mountains a few times a month, if time permits... but wanted to know... should I just go with the S package? or stick with the base model, add A/C and then some better tires?