An Arctic Hare is usually 20-26 inches. They usually weigh between 8 and 14 pounds.
The Sierra Nevada Snowshoe Hare is listed by the US Fish and Wildlife Endangered Species List, or US FWS-ESA with a status of "least concern". They are being studied in California , Nevada, and the FWS-ESA has studied reports back to 1985 concerning their status. The International Union of Conservation for Nature or IUCN Red List also lists the Snowshoe Hare as "least concern, with a populations trend posted as "stable". For more details, please see the sites listed below.
Yes, Arctic Hares live in cold places like the Tundra.