February is the coldest month with almost -15°C temperature average (again, the reference period is 1960-1990).

At the 74th parallel north, the midnight sun lasts 99 days and polar night 84 days, while the respective figures at the 81st parallel north are 141 and 128 days.

The snowy period of the year lasts for 8.8 months, from September 11 to June 6, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow at Svalbard Airport, Longyear is March, with an average snowfall of 9.2 inches.

 The average annual temperature in Isfjord is -7,5°C (reference period: 1960-1990). This is warm considering the latitude of 78°N, a consequence of the influence of the West Spitsbergen Current (Gulf stream). The climate is accordingly high arctic with a strong maritime component. July is the warmest month with 5°C, the temperature fluctuations in summer are moderate. Temperatures below freezing are rare between late June and early August, and more than 10°C are likewise exceptional. Wind and clouds are very important for how one actually experiences the temperature. There are those rare summer days when you can enjoy sitting in the sun in a T-shirt.