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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 Windham is 44.9°F (7.2°C). The warmest month, on average, is July with an average temperature of 67.7°F (19.8°C). The coolest month on average is February, with an average temperature of 20.2°F (-6.6°C).
The highest recorded temperature in Windham is 97.0°F (36.1°C), which was recorded in July. The lowest recorded temperature in Windham is -34.0°F (-36.7°C), which was recorded in January.
The average amount of precipitation for the year in Windham is 43.5" (1104.9 mm). The month with the most precipitation on average is October with 4.1" (104.1 mm) of precipitation. The month with the least precipitation on average is February with an average of 2.7" (68.6 mm). There are an average of 126.0 days of precipitation, with the most precipitation occurring in May with 12.0 days and the least precipitation occurring in February with 9.0 days.
In Windham, there's an average of 49.2" of snow (125 cm). The month with the most snow is January, with 13.0" of snow (33 cm).