If you could grow a pineapple you should be able to grow oranges and lemons. We have roughly socal weather here, and have no problems with either... but it never freezes here. You would need to protect the tree from freezing if you have temperatures much below 0°C for more than 10 hours at a time (google didn't answer that question for nocal, my query must've been off) but planting against a south facing brick or stone wall would help if it's marginal (obviously we'd be using a north facing wall).

p.s. worked out the right query, and nocal looks ok on the coast, and even OR and WA, but going further north to BC looked a bit iffy... but then people do manage it - http://www.5dollardinners.com/oranges-from-canada/

America's Test Kitchen covered sangria -- here's an excerpt

Many people mistake sangria for an unruly collection of fruit awash in a sea of overly sweetened red wine. There's also the premade sangria sold in liquor stores, which is at once sugary, watery, and flavorless--a poor substitute for Hi-C.
The Goal

A robust, sweet-tart punch.
The Solution

Start with cheap red wine, which actually makes a better sangria than the expensive stuff. (Experts told us that the sugar and fruit called for in sangria throw off the balance of any wine used, so why spend a lot on something that was carefully crafted?)We experimented with untold varieties of fruit to put in our sangria and finally concluded that simpler is better. We preferred the straightforward tang of citrus in the form of oranges and lemons. And we discovered that the zest and pith as well as the fruit itself make an important contribution to flavor. Orange liqueur is standard in recipes for sangria, and after experimenting we found that here, as with the wine, cheaper was just fine, this time in the form of Triple Sec. Fortification with any other alcoholic beverage, from gin to port to brandy, simply gave the punch too much punch. What we wanted, and what we now had, was a light, refreshing, very drinkable drink.

Here's the recipe -- http://www.recipezaar.com/The-Best-Sangria-64855 . I haven't tried it yet, but it's on my list

*save the pagan classics

"Oranges and lemons", say the bells of St. Clement's
"You owe me five farthings", say the bells of St. Martin's
"When will you pay me?" say the bells of Old Bailey
"When I grow rich", say the bells of Shoreditch
"When will that be?" say the bells of Stepney
"I do not know", says the great bell of Bow
Here comes a candle to light you to bed
And here comes a chopper to chop off your head!
Chip chop chip chop - The last man's dead