Hi Leeneia, the Aurora Borealis is generally predictable. They are much more likely to be seen following intense solar flare activity. They occur day and night throughout the year whenever the upper atmosphere gets irradiated with solar flare energy. If you want to view the Aurora, you will need to find a spot far enough north (or south0 when this activity is happening.

The Aurora Page will give you some good photos, but also there are links to various websites that can help predict when activity might occur. If you travel to Alaska or Canada, be sure to find a place where the cloud cover will be minimal and hope for the best. Like Ebbie, I have seen Northern Lights throughout the year, but it gets harder to see when the sun is up at 4:30 am and doesn't set until midnight.

Good luck, I hope the website helps.

Mike