Good rule of thumb now and for the next year or several: for $1.00 US you should be getting MORE than $1.00 Canadian.
Now, that chart is also misleading in this way: it uses the exact same exchange rate going both ways. In fact, if you go to a bank and ask them to sell you Canadian Dollars for your US cash, they will take a couple percentage points' profit on the transaction. So although this chart says you should pay US$100.00 and get in return C$114.14, the bank proably will only give you about C$112.00, maybe less. And if you go back and buy US$ with that, they'll charge you a margin again, and you'll end up with about $95 US!!
Additional hint: in my experience, a bank in Canada will take a smaller profit margin on these transactions than most US banks will charge. So if you have the choice, you might do better on exchange after you get to Canada. On the other hand, I have found that the excahnge rates VISA uses when you charge Canadian purchases on a US-based VISA card are reasonably good, sometimes better than a US bank would do.
I'm a Canadian working in the USA, so I deal with this stuff often.