Arrowrock Dam Weather History

Bureau of Reclamation station at Arrowrock Reservoir on the Boise River. At 3,241 ft this station captures the lower Boise Basin canyon climate. Records 1976-1999. Arrowrock Dam, completed in 1915, was once the tallest dam in the world.

USC00100448

43.6°N, 115.9167°W

344 days · Avg Hi: 64.6°F · Avg Lo: 40.1°F

328 days · Avg Hi: 62.4°F · Avg Lo: 39.8°F

311 days · Avg Hi: 63.8°F · Avg Lo: 39.8°F

256 days · Avg Hi: 62.0°F · Avg Lo: 38.1°F

321 days · Avg Hi: 63.4°F · Avg Lo: 39.5°F

351 days · Avg Hi: 64.1°F · Avg Lo: 38.5°F

362 days · Avg Hi: 59.0°F · Avg Lo: 35.8°F

366 days · Avg Hi: 64.9°F · Avg Lo: 38.0°F

365 days · Avg Hi: 61.6°F · Avg Lo: 35.6°F

361 days · Avg Hi: 62.7°F · Avg Lo: 36.6°F

360 days · Avg Hi: 60.9°F · Avg Lo: 35.6°F

271 days · Avg Hi: 63.2°F · Avg Lo: 35.0°F

283 days · Avg Hi: 64.8°F · Avg Lo: 37.3°F

324 days · Avg Hi: 63.1°F · Avg Lo: 38.4°F

312 days · Avg Hi: 55.5°F · Avg Lo: 31.0°F

366 days · Avg Hi: 57.9°F · Avg Lo: 35.3°F

365 days · Avg Hi: 60.8°F · Avg Lo: 38.6°F

365 days · Avg Hi: 58.6°F · Avg Lo: 35.9°F

365 days · Avg Hi: 62.5°F · Avg Lo: 38.5°F

366 days · Avg Hi: 60.7°F · Avg Lo: 38.3°F

365 days · Avg Hi: 61.1°F · Avg Lo: 36.6°F

365 days · Avg Hi: 60.3°F · Avg Lo: 36.6°F

365 days · Avg Hi: 60.7°F · Avg Lo: 35.5°F

335 days · Avg Hi: 57.1°F · Avg Lo: 33.0°F