While in Billings, MT the temperatures can reach an average of 35.31 ºC in summer, with precipitation levels up to 9.0 mm ,Sheridan, WY's temperatures can go up to 34.61 ºC during the hot season, with 3.0 mm average of rain rate . In winter, however, weather indicators show around -21.63 ºC in Sheridan, WY, compared to the -20.11 ºC average degrees reported in Billings, MT. During the winter period, Billings, MT can register 1.6 mm precipitation, while Sheridan, WY have an average of 0.9 mm rain level.