The primary NWS observation station for the Treasure Valley. Boise Airport (KBOI) has recorded daily temperature since 1940, making it the longest continuous climate record in the region. Valley floor at 860 meters. Station record begins 1940. GHCND ID: USW00024131. Coordinates: 43.56705°N, -116.24062°W. Elevation: 860.5m (Valley Floor).