Idaho climate
World Climates covers 2 places in Idaho. By annual mean temperature, the warmest is Boise (12 °C54 °F) and the coolest is Pocatello (9 °C49 °F). The wettest is Pocatello with 411 mm16 in of precipitation per year, the driest Boise with 389 mm15 in.
The most common climate types (Köppen classification computed from these averages) are hot-summer continental (dry summer) (Dsa, 2 places).
The highest monthly average high is in Boise (35 °C95 °F in July); the lowest monthly average low is in Pocatello (−9 °C15 °F in January).
Frequently asked questions
Which is the warmest place in Idaho?
By annual mean temperature, the warmest place in Idaho is Boise at 12 °C54 °F. The coolest is Pocatello at 9 °C49 °F.
Where does it rain the most in Idaho?
Pocatello gets the most precipitation, 411 mm16 in in an average year. The driest place is Boise with 389 mm15 in.
How many places in Idaho does this site cover?
World Climates has climate data for 2 places in Idaho. Each one has a page with monthly averages for temperature, rainfall, humidity and daylight.
Climate of every place in Idaho
Year = annual mean temperature; max high = average high of the warmest month; min low = average low of the coldest month; precip. = annual total. Temperatures in °C°F, precipitation in mminches. Sorted by population.
Data: NASA POWER climatology 2001–2025 (MERRA-2 reanalysis, CERES satellite data) — grid-cell averages, not station records. Sources and method.