Pithoragarh town, being in a valley, is relatively warm during summer and cool during winter. During the coldest months of December and January, the tropical and temperate mountain ridges and high locations receive snowfall and have an average temperature of 5.5–8.0 °C (41.9–46.4 °F). Pithoragarh district has extreme variation in temperature due to the large variations in altitude. The temperature rises from mid-March through mid-June. The areas above 3,500 metres (11,500 ft) remain in a permanent snow cover. Regions lying at 3,000–3,500 metres (9,800–11,500 ft) become snowbound for four to six months. At places like the river gorges at Dharchula, Jhulaghat, Ghat and Sera, temperatures reach 40 °C (104 °F). The annual average rainfall is 36.7 centimetres (14.4 in). After June the district receives monsoon showers. Winter is a time for transhumance – the seasonal migration of the Bhotiya tribe with their herds of livestock to lower, warmer areas.