Statewide areal climate 1951–2025
Idaho
A 44.2°F / 23.4" normal · 2025 ran +2°F vs normal. 44 counties.
2026 so far · through Aug 29: This area is running +3.5°F (49.7°F) vs the 1996–2025 to-date normal — the 1st warmest start of 76 years. Precipitation 81% of normal. U.S. year-to-date →
Normal (1996–2025)
44.2°F
annual mean · 23.4" precipitation
2025 vs Normal
+2°F
46.2°F · 23.1" (99% of normal)
Warmest Year
46.4°F
2015 · coldest 39.8°F (1985)
Wettest Year
32.1in
1996 · driest 17.6" (2013)
Hottest Day
98.5°F
Jul 13 · 2002
Coldest Day
-25.0°F
Dec 23 · 1990
Biggest Rain Day
1.76in
Dec 23 · 1964
Record
1951–2025
75 complete years · NOAA nClimGrid
Where 2025 Ran Warm & Cool
Every county in Idaho by its 2025 temperature vs the 1996–2025 normal.
Monthly Climate
J
F
M
A
M
J
J
A
S
O
N
D
—— normal temperature (°F) · ▮ normal precipitation (in) · 1996–2025
Counties (44)
Ada CountyAdams CountyBannock CountyBear Lake CountyBenewah CountyBingham CountyBlaine CountyBoise CountyBonner CountyBonneville CountyBoundary CountyButte CountyCamas CountyCanyon CountyCaribou CountyCassia CountyClark CountyClearwater CountyCuster CountyElmore CountyFranklin CountyFremont CountyGem CountyGooding CountyIdaho CountyJefferson CountyJerome CountyKootenai CountyLatah CountyLemhi CountyLewis CountyLincoln CountyMadison CountyMinidoka CountyNez Perce CountyOneida CountyOwyhee CountyPayette CountyPower CountyShoshone CountyTeton CountyTwin Falls CountyValley CountyWashington County
Areal nClimGrid averages (NOAA/NCEI) over the whole area — an average across the region, not a single station. Separate from the station records.