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Elevation: 1279 meters     Latitude: 47 02N     Longitude: 109 28W
Köppen Classification: Warm Summer Continental Climate



This climate climate zone covers from about 44°N to 50°N latitude mostly east of the 100th meridian in North America. However, it can be found as far north as 54°N, and further west in the Canadian Prairie Provinces and below 40°N in the high Appalachians. In Europe this subtype reaches its most northerly latitude at nearly 61° N. Areas featuring this subtype of the continental climate have an average temperature in the warmest month below 22°C (22°F). Summer high temperatures in this zone typically average between 21-28°C (70-82°F) during the daytime and the average temperatures in the coldest month are generally far below the -3 °C (27°F) mark.

The Köppen Climate Classification subtype for this climate is "Dfb". (Warm Summer Continental Climate).

The average temperature for the year in Lewistown is 42.0°F (5.6°C). The warmest month, on average, is July with an average temperature of 65.0°F (18.3°C). The coolest month on average is January, with an average temperature of 20.0°F (-6.7°C).

The highest recorded temperature in Lewistown is 105.0°F (40.6°C), which was recorded in June. The lowest recorded temperature in Lewistown is -46.0°F (-43.3°C), which was recorded in January.

The average amount of precipitation for the year in Lewistown is 17.7" (449.6 mm). The month with the most precipitation on average is June with 3.8" (96.5 mm) of precipitation. The month with the least precipitation on average is January with an average of 0.7" (17.8 mm). In terms of liquid precipitation, there are an average of 39.8 days of rain, with the most rain occurring in June with 6.5 days of rain, and the least rain occurring in November with 2.0 days of rain.

In Lewistown, there's an average of 60.7" of snow (0 cm). The month with the most snow is December, with 10.2" of snow (25.9 cm).

Koppen Chart