What are the characteristics of coniferous forest climate in sub-frigid zone?

The climate of coniferous forest in sub-cold zone appears between 50-65 degrees north latitude, which is distributed in a strip shape, and the winter is long and cold. Every year, the average temperature is below 0 degrees Celsius for five to seven months, and the cold weather of MINUS 50 degrees Celsius often occurs. Summer is short and warm, and the average monthly temperature is above 10 degrees Celsius, and the highest temperature can reach 20 degrees Celsius. The annual precipitation is generally 300 mm to 600 mm, mainly in summer rain. Due to weak evaporation, high relative humidity and permafrost, many surfaces are in overtemperature and swamps are widely distributed. Because it is suitable for the growth of coniferous trees, coniferous forests are widely distributed, also known as sub-polar continental climate or sub-frigid continental climate, also known as snow forest climate. Mainly distributed in Eurasia and the northern part of America, near the Arctic Circle. There are Russia, the United States, Canada, Sweden, Finland and so on all over the country.