Nome (Alaska) is in the continental Subarctic climate; all the areas at South of the Arctic circle, 66 ° 33' N latitude are Subarctic. Most of Alaska is covered by the taiga, the largely coniferous boreal forest and at the northern treeline it dissipates into the vast rolling tundra, where permafrost becomes continuous beneath the surface even during the short summer; permafrost, concrete-hard frozen ground, is 300 m thick in northern Alaska.
Precipitation in the taiga is variable, but typically the annual value is approximately equal to 43 cm, with a minimum of 15 mm in March and a maximum equal to 80 mm in August; in fact, the highest precipitation period is between June and October, during summer. In addition, the annual mean relative humidity is approximately equal to 73%, it's most frequently included in the 60-100% interval and it's generally higher than 40%.
The mean annual temperature is equal to -2.7 °C and summer lasts one to three months with mean temperatures above 10 °C and it is considered short and hot; in particular, the minimum and maximum temperatures registered in Nome are respectively equal to - 35.6 °C on 30th and 31st December and 23.9 °C on 20th July.