I am planning to go to Yellowknife in this mid-August or mid-December, which period has a better chance to see aurora? I am afraid that it would be very cold in December and also think that there may be more activities to do during the daytime in August in Yellowknife, so I prefer August. However, hunting aurora is the most important thing to do so I still prefer to go there with a better chance. Can anyone give me some advice. Thank you.