Helena mt weather The summer season, which lasts from June to August, is generally warm and sunny. The average high temperature in June is around 75°F (24°C), while in July and August, it can reach up to 85°F (29.5°C). However, nights can be cool, with the average low temperature in June being around 46°F (8°C). Thunderstorms are common in late summer, especially in August. Autumn, which starts in September and ends in November, is typically crisp and cool. The average high temperature in September is around 70°F (21°C), dropping to around 50°F (10°C) in November. The first snowfall usually occurs in October, but significant snowfall is more common in November. Winter, which lasts from December to February, is cold and snowy. The average high temperature in December, January, and February is around 35°F (1.5°C), while the average low temperature can drop below 0°F (-18°C). Helena receives an average of 63 inches of snow per year, with the majority falling between November and March. Spring, which starts in March and ends in May, is unpredictable. The average high temperature in March is around 45°F (7°C), rising to around 60°F (15.5°C) in May. However, snowstorms can occur in early spring, and the temperature can fluctuate significantly within a single day. Helena's weather is influenced by its location in the Rocky Mountains. The city is situated in a valley, which can lead to temperature inversions, where the temperature increases with altitude instead of decreasing. This phenomenon is most common in the winter and can lead to foggy conditions and increased air pollution. Visitors to Helena should be prepared for variable weather conditions, especially in the spring and autumn. It's always a good idea to check the local weather forecast before heading outdoors. Despite its variable weather, Helena's natural beauty and outdoor recreation opportunities make it a popular destination year-round. Helena, Montana, located in the Rocky Mountains, is known for its variable weather patterns. The city experiences all four seasons, with significant temperature differences between summer and winter. The summer season, which lasts from June to August, is generally warm and sunny. The average high temperature in June is around 75°F (24°C), while in July and August, it can reach up to 85°F (29.5°C). However, nights can be cool, with the average low temperature in June being around 46°F (8°C). Thunderstorms are common in late summer, especially in August. The farm is open to the public from mid-April to mid-August, and visitors can come and pick their own fruits and vegetables straight from the fields. The farm also has a farm stand where visitors can purchase pre-picked produce, as well as jams, jellies, and other farm-made products. Winter, which lasts from December to February, is cold and snowy. The average high temperature in December, January, and February is around 35°F (1.5°C), while the average low temperature can drop below 0°F (-18°C). Helena receives an average of 63 inches of snow per year, with the majority falling between November and March. Spring, which starts in March and ends in May, is unpredictable. The average high temperature in March is around 45°F (7°C), rising to around 60°F (15.5°C) in May. However, snowstorms can occur in early spring, and the temperature can fluctuate significantly within a single day. Helena's weather is influenced by its location in the Rocky Mountains. The city is situated in a valley, which can lead to temperature inversions, where the temperature increases with altitude instead of decreasing. This phenomenon is most common in the winter and can lead to foggy conditions and increased air pollution. Visitors to Helena should be prepared for variable weather conditions, especially in the spring and autumn. It's always a good idea to check the local weather forecast before heading outdoors. Despite its variable weather, Helena's natural beauty and outdoor recreation opportunities make it a popular destination year-round.