NOAA climate atlas · updated August 2026
Idaho Climate Data
Climate normals for 139 station-mapped locations, each from its primary station in Idaho's 262-station NOAA network.
- average temperature
- 46°F (8°C)46.1°F · fleet p50 52.2°F · n=50
- Cooler national band
- annual precipitation
- 18.0"18.0 inches · fleet p50 43.7 inches · n=50
- Drier national band
- annual snowfall
- 44.6"44.6 inches · fleet p50 24.7 inches · n=50
- More snow than median
- locations / stations
- 139 / 262State coverage: 139 locations / 262 stations. Benchmark context: this profile's measured location and NOAA-station counts.
- State coverage
Idaho's climate in one line
Idaho averages 46°F a year - cooler than 78% of U.S. states, spanning Stanley at 34°F to Bruneau at 55°F.
- 46°F
- statewide average · 22th percentile of states
- 18"
- average annual precipitation
- 68/100
- most comfortable: Brownlee Dam
- 139
- station-mapped locations · 262 NOAA stations
Statewide figures are simple averages across 139 station-mapped locations (each from its primary NOAA station), local conditions vary widely by elevation and coast distance.
How Idaho ranks among all 50 states
Idaho's average temperature vs. all U.S. states
Statewide annual mean temperature, NOAA 1991–2020 normals
46°F 22nd percentile cooler than 78% of 50 U.S. states
- 30°F–35°F: 1 US states (2%). Below this entry.
- 35°F–40°F: 0 US states (0%). Below this entry.
- 40°F–45°F: 8 US states (16%). Below this entry.
- 45°F–50°F: 10 US states (20%). This entry sits in this band.
- 50°F–55°F: 12 US states (24%). Above this entry.
- 55°F–60°F: 8 US states (16%). Above this entry.
- 60°F–65°F: 7 US states (14%). Above this entry.
- 65°F–70°F: 2 US states (4%). Above this entry.
- 70°F–75°F: 2 US states (4%). Above this entry.
Source NOAA U.S. Climate Normals (statewide aggregate) · 1991–2020
Idaho in the national rankings
- Ranks #12 coldest of 50 states at 46.1°F annual average, 7.0°F below the 53.1°F mean of all state averages - see all 50 coldest states ranked by NOAA normals
- In winter (Dec–Feb) it averages 26.9°F, the #16 coldest winter of 50 states - winter ranking
- 55.0% of NOAA hourly observations report clear sky (3 measured locations), the #9 clearest of 47 ranked states - sunniest states by clear-sky frequency
Temperature × precipitation · 50-state landscape
Idaho in the national climate landscape
Idaho averages 46.1°F and 18.0 inches of annual precipitation across 139 station-mapped locations. Against the same complete 50-state cohort, that places it in the cooler and drier half of the chart. Dashed lines mark the national medians of 52.3°F and 43.7 inches.
Read all 50 state values
Each point is PlainClimate's simple average across the station-mapped location normals available for that state. Cohort sizes vary and are shown below; the values are not population weighted. Dashed lines mark the median of this 50-state comparison and are guides, not comfort or safety thresholds.
| State | Locations | Annual mean | Annual precipitation |
|---|---|---|---|
| Alaska | 172 | 33.5°F | 47.6 in |
| Alabama | 100 | 63.3°F | 57.9 in |
| Arkansas | 110 | 60.7°F | 52.2 in |
| Arizona | 169 | 62.3°F | 12.4 in |
| California | 363 | 59.8°F | 21.6 in |
| Colorado | 214 | 46.3°F | 15.9 in |
| Connecticut | 23 | 50.1°F | 48.6 in |
| Delaware | 7 | 56.2°F | 46.8 in |
| Florida | 165 | 72.6°F | 55.2 in |
| Georgia | 122 | 63.4°F | 52.0 in |
| Hawaii | 49 | 72.4°F | 48.5 in |
| Iowa | 143 | 48.0°F | 35.9 in |
| Idaho | 139 | 46.1°F | 18.0 in |
| Illinois | 163 | 52.2°F | 40.7 in |
| Indiana | 116 | 52.4°F | 43.7 in |
| Kansas | 168 | 54.8°F | 31.2 in |
| Kentucky | 95 | 56.2°F | 50.6 in |
| Louisiana | 91 | 67.3°F | 60.3 in |
| Massachusetts | 68 | 49.2°F | 48.2 in |
| Maryland | 42 | 55.6°F | 45.5 in |
| Maine | 79 | 43.1°F | 46.4 in |
| Michigan | 201 | 45.5°F | 34.2 in |
| Minnesota | 172 | 42.2°F | 30.0 in |
| Missouri | 164 | 55.1°F | 43.9 in |
| Mississippi | 91 | 64.1°F | 59.7 in |
| Montana | 215 | 43.4°F | 15.9 in |
| North Carolina | 178 | 59.1°F | 52.2 in |
| North Dakota | 119 | 41.0°F | 19.2 in |
| Nebraska | 171 | 49.6°F | 25.0 in |
| New Hampshire | 52 | 44.5°F | 46.6 in |
| New Jersey | 45 | 53.6°F | 47.9 in |
| New Mexico | 167 | 54.3°F | 13.8 in |
| Nevada | 115 | 52.4°F | 8.9 in |
| New York | 173 | 47.5°F | 43.7 in |
| Ohio | 128 | 51.6°F | 41.1 in |
| Oklahoma | 159 | 60.3°F | 35.7 in |
| Oregon | 180 | 50.5°F | 37.6 in |
| Pennsylvania | 157 | 50.2°F | 45.2 in |
| Rhode Island | 9 | 51.2°F | 48.7 in |
| South Carolina | 100 | 62.8°F | 49.8 in |
| South Dakota | 149 | 45.6°F | 21.8 in |
| Tennessee | 146 | 58.0°F | 56.0 in |
| Texas | 449 | 66.2°F | 31.1 in |
| Utah | 170 | 49.4°F | 13.9 in |
| Virginia | 119 | 55.8°F | 46.0 in |
| Vermont | 41 | 43.5°F | 43.7 in |
| Washington | 149 | 49.9°F | 40.9 in |
| Wisconsin | 200 | 44.5°F | 34.6 in |
| West Virginia | 99 | 52.3°F | 47.6 in |
| Wyoming | 144 | 43.3°F | 14.0 in |
Derived by PlainClimate from NOAA 1991-2020 U.S. Climate Normals · simple averages across each state's varying station-mapped-location cohort · data updated August 2026.
Idaho Climate in Context
U.S. land-mean temperature anomaly (NOAA NCEI) tracked against global anomaly (NASA GISTEMP). Paris Agreement 1.5°C and 2.0°C thresholds shown as reference lines. Idaho sits within this national warming envelope; individual station-mapped locations below show local readings against this trend.
- United States (incl. Idaho) +0.11 °C/decade
- Global (NASA GISTEMP) +0.11 °C/decade
- Paris Agreement thresholds 1.5°C / 2.0°C
Station-mapped locations in Idaho
139 locations with climate data
Scroll the table to browse every location, or use the complete CSV and JSON exports below.
| Location | Avg Temp | High | Low | Precip | Snow | Comfort |
|---|---|---|---|---|---|---|
| Aberdeen Exp Stn | 45°F | 59°F | 32°F | 9.6" | 25.2" | 39/100 |
| American Falls | 47°F | 59°F | 35°F | 11.1" | 34.9" | 49/100 |
| Arco | 43°F | 53°F | 33°F | 15.5" | N/A | 40/100 |
| Arrowrock Dam | 51°F | 63°F | 39°F | N/A | N/A | N/A |
| Ashton | 43°F | 55°F | 32°F | 19.7" | 70.1" | 34/100 |
| Bayview Model Basin | 45°F | 55°F | 35°F | 24.6" | 27.2" | 59/100 |
| Bellevue | 47°F | 59°F | 34°F | 17.5" | N/A | 52/100 |
| Bern | 41°F | 56°F | 27°F | 17.9" | 90.6" | 34/100 |
| Blackfoot Fire Dept | 47°F | 59°F | 36°F | 12.1" | 14.7" | 54/100 |
| Boise | 50°F | 61°F | 39°F | 18.0" | 57.4" | 44/100 |
| Boise Air Terminal | 53°F | 64°F | 42°F | 11.5" | 17.6" | 54/100 |
| Boise Lucky Peak Dam | 53°F | 65°F | 40°F | 15.1" | N/A | 52/100 |
| Bonners Ferry | 48°F | 58°F | 37°F | 21.1" | 53.8" | 54/100 |
| Brownlee Dam | 55°F | 66°F | 44°F | 14.8" | N/A | 68/100 |
| Bruneau | 55°F | 69°F | 42°F | 7.4" | N/A | 56/100 |
| Buhl | 50°F | 61°F | 39°F | 10.2" | N/A | 52/100 |
| Burley Muni | 49°F | 62°F | 37°F | 10.3" | N/A | 52/100 |
| Cabinet Gorge | 46°F | 56°F | 36°F | 30.7" | N/A | 64/100 |
| Cambridge | 48°F | 61°F | 36°F | 21.4" | N/A | 64/100 |
| Cascade | 43°F | 56°F | 31°F | 23.8" | 86.3" | 44/100 |
| Castleford | 48°F | 61°F | 35°F | 10.7" | N/A | 52/100 |
| Challis | 44°F | 57°F | 31°F | 6.9" | N/A | 28/100 |
| Chilly Barton Flat | 41°F | 55°F | 27°F | 8.0" | 18.3" | 34/100 |
| Coeur D'alene | 49°F | 58°F | 40°F | 25.4" | N/A | 64/100 |
| Cottonwood | 48°F | 57°F | 38°F | 22.6" | 61.4" | 54/100 |
| Council | 49°F | 62°F | 36°F | 22.4" | N/A | 64/100 |
| Craters of The Moon | 39°F | 52°F | 27°F | 15.0" | 80.3" | 34/100 |
| Deadwood Lodge | 39°F | 55°F | 24°F | 39.6" | N/A | N/A |
| Deer Flat Dam | 53°F | 65°F | 40°F | 10.0" | N/A | 52/100 |
| Dixie | 37°F | 52°F | 22°F | N/A | N/A | N/A |
| Dixie N | 36°F | 50°F | 22°F | 33.6" | N/A | N/A |
| Downey | 46°F | 60°F | 32°F | 15.6" | N/A | 52/100 |
| Driggs | 42°F | 56°F | 28°F | 19.4" | N/A | 40/100 |
| Dubois Exp Stn | 45°F | 57°F | 34°F | 12.2" | 47.3" | 49/100 |
| Dworshak Fish Hatchery | 52°F | 64°F | 40°F | 26.1" | 17.5" | 68/100 |
| Elk City | 42°F | 57°F | 27°F | 30.6" | 119.2" | 47/100 |
| Elk Rvr | 45°F | 56°F | 34°F | 39.2" | N/A | 52/100 |
| Emmett | 52°F | 64°F | 39°F | 13.3" | 7.4" | 54/100 |
| Fairfield Ranger Station | 42°F | 55°F | 29°F | 14.6" | N/A | 40/100 |
| Fenn Ranger Station | 50°F | 62°F | 38°F | 40.6" | 43.1" | 59/100 |
| Fort Hall | 45°F | 59°F | 32°F | 10.5" | 28.1" | 49/100 |
| Garden Valley | 47°F | 61°F | 33°F | 26.6" | 69.4" | 54/100 |
| Gibbonsville | 42°F | 56°F | 28°F | N/A | N/A | N/A |
| Glenns Ferry | 55°F | 70°F | 39°F | 10.6" | N/A | 52/100 |
| Grace | 44°F | 56°F | 31°F | 15.1" | N/A | 40/100 |
| Grand View | 53°F | 67°F | 39°F | 6.7" | N/A | 40/100 |
| Grangeville | 48°F | 58°F | 37°F | 23.5" | 38.7" | 59/100 |
| Hagerman | 51°F | 64°F | 37°F | 9.8" | N/A | 40/100 |
| Hamer | 44°F | 59°F | 28°F | 8.9" | 20.4" | 29/100 |
| Hazelton | 49°F | 61°F | 36°F | 10.7" | N/A | 52/100 |
| Headquarters | 43°F | 56°F | 30°F | 40.9" | 118.7" | 47/100 |
| Hill City | 42°F | 56°F | 28°F | 14.0" | N/A | 40/100 |
| Homedale | 52°F | 65°F | 39°F | 10.1" | N/A | 52/100 |
| Howe | 44°F | 58°F | 30°F | 7.3" | 11.1" | 34/100 |
| Idaho City | 44°F | 59°F | 28°F | 21.1" | N/A | 52/100 |
| Idaho Falls | 43°F | 58°F | 28°F | 8.2" | 24.8" | 29/100 |
| Idaho Falls - Kifi | 47°F | 58°F | 35°F | 13.5" | N/A | 52/100 |
| Idaho Falls Fanning Fld | 44°F | 58°F | 31°F | 10.1" | N/A | 40/100 |
| Island Park | 37°F | 50°F | 23°F | 28.8" | N/A | N/A |
| Jerome | 50°F | 62°F | 39°F | 10.4" | N/A | 52/100 |
| Jerome County | 50°F | 62°F | 39°F | 9.9" | N/A | 40/100 |
| Kamiah | 51°F | 63°F | 39°F | 24.0" | 11.3" | 64/100 |
| Kellogg | 47°F | 59°F | 34°F | 33.9" | 52.4" | 54/100 |
| Ketchum Ranger Station | 40°F | 54°F | 27°F | 17.3" | 102.0" | 35/100 |
| Kooskia | 49°F | 61°F | 37°F | N/A | N/A | N/A |
| Lava Hot Springs | 45°F | 58°F | 32°F | 18.3" | N/A | 52/100 |
| Leadore | 39°F | 54°F | 24°F | N/A | N/A | N/A |
| Lewiston Nez Perce County | 54°F | 64°F | 43°F | 12.9" | 12.7" | 58/100 |
| Lifton Pumping Stn | 41°F | 53°F | 29°F | 11.3" | 37.4" | 39/100 |
| Lowell Three Rivers | 52°F | 63°F | 40°F | 39.7" | N/A | 68/100 |
| Lowman | 44°F | 59°F | 30°F | N/A | N/A | N/A |
| Mackay Lost Rvr Ranger Station | 42°F | 55°F | 29°F | 9.9" | N/A | 28/100 |
| Malad City | 47°F | 61°F | 33°F | 13.1" | N/A | 52/100 |
| Malta | 46°F | 61°F | 31°F | 9.6" | 11.9" | 44/100 |
| Massacre Rocks State Park | 47°F | 61°F | 34°F | 13.5" | N/A | 52/100 |
| May | 42°F | 59°F | 26°F | 8.5" | N/A | 28/100 |
| Mccall | 42°F | 54°F | 29°F | 23.1" | N/A | 52/100 |
| Mccammon | 46°F | 59°F | 33°F | 15.5" | 44.7" | 49/100 |
| Middle Fork Lodge | 45°F | 59°F | 31°F | 15.8" | 40.7" | 49/100 |
| Minidoka Dam | 49°F | 62°F | 35°F | 9.8" | 20.5" | 39/100 |
| Monteview | 42°F | 56°F | 27°F | 10.2" | N/A | 40/100 |
| Moscow U of I | 46°F | 60°F | 33°F | 27.8" | 50.9" | 59/100 |
| Mtn Home | 52°F | 66°F | 39°F | N/A | N/A | N/A |
| Mullan | 45°F | 56°F | 34°F | 36.6" | N/A | 64/100 |
| Mullan Pass Vor/dme | 39°F | 45°F | 32°F | 45.1" | N/A | 52/100 |
| Murphy | 48°F | 61°F | 35°F | 11.3" | N/A | 52/100 |
| Murphy (desert) Hot Springs | 45°F | 61°F | 30°F | 14.7" | 47.3" | 53/100 |
| Nampa Sugar Factory | 52°F | 66°F | 38°F | 11.0" | 9.7" | 54/100 |
| New Meadows Ranger Station | 41°F | 57°F | 26°F | 24.5" | N/A | N/A |
| Nezperce | 45°F | 56°F | 34°F | 20.0" | 28.9" | 39/100 |
| Oakley | 50°F | 62°F | 37°F | 12.3" | 25.1" | 49/100 |
| Ola | 48°F | 64°F | 32°F | 22.5" | N/A | 64/100 |
| Parma Exp Stn | 52°F | 65°F | 38°F | 10.0" | 11.5" | 44/100 |
| Paul | 47°F | 58°F | 36°F | 10.8" | N/A | 52/100 |
| Payette | 53°F | 66°F | 41°F | 11.3" | N/A | 56/100 |
| Picabo | 42°F | 58°F | 27°F | 13.0" | 45.6" | 39/100 |
| Pierce | 44°F | 57°F | 30°F | 43.1" | 113.6" | 44/100 |
| Plummer | 47°F | 57°F | 36°F | 28.5" | N/A | 64/100 |
| Pocatello | 49°F | 61°F | 37°F | 13.5" | 63.6" | 44/100 |
| Pocatello City | 50°F | 62°F | 38°F | 13.0" | 29.7" | 49/100 |
| Pocatello Rgnl | 47°F | 61°F | 34°F | 11.8" | 38.5" | 49/100 |
| Porthill | 47°F | 60°F | 35°F | 21.5" | N/A | 64/100 |
| Potlatch | 47°F | 58°F | 36°F | 24.5" | 41.3" | 59/100 |
| Powell | 43°F | 55°F | 30°F | N/A | N/A | N/A |
| Preston | 47°F | 60°F | 34°F | 17.3" | 52.4" | 44/100 |
| Prichard | 44°F | 56°F | 32°F | 44.3" | N/A | 52/100 |
| Priest Rvr Exp Stn | 45°F | 56°F | 33°F | 32.6" | 73.9" | 44/100 |
| Red River Ranger Station | 41°F | 56°F | 27°F | N/A | N/A | N/A |
| Rexburg Byu Idaho | 45°F | 57°F | 33°F | 12.6" | N/A | 40/100 |
| Rexburg Madison County | 44°F | 56°F | 32°F | 12.0" | N/A | 40/100 |
| Reynolds | 48°F | 61°F | 35°F | 9.9" | N/A | 40/100 |
| Richfield | 46°F | 60°F | 33°F | 10.5" | 28.6" | 49/100 |
| Rigby | 46°F | 57°F | 34°F | 13.5" | N/A | 52/100 |
| Riggins | 50°F | 64°F | 37°F | 17.4" | 7.1" | 54/100 |
| Saint Anthony | 43°F | 55°F | 31°F | 14.8" | N/A | 40/100 |
| Saint Maries | 48°F | 59°F | 37°F | 31.1" | 56.0" | 54/100 |
| Salmon-ksra | 44°F | 58°F | 31°F | 9.5" | 22.0" | 29/100 |
| Sandpoint Exp Stn | 46°F | 57°F | 36°F | 34.0" | 62.0" | 54/100 |
| Shoshone | 53°F | 65°F | 41°F | 10.5" | N/A | 52/100 |
| Shoup | 48°F | 60°F | 35°F | N/A | N/A | N/A |
| Silver City | 46°F | 56°F | 37°F | N/A | N/A | N/A |
| Small | 43°F | 55°F | 30°F | 12.5" | N/A | 40/100 |
| Soda Springs | 42°F | 58°F | 27°F | 15.7" | N/A | N/A |
| Stanley | 34°F | 52°F | 16°F | 18.2" | N/A | N/A |
| Stanley Ranger Station | 37°F | 53°F | 22°F | 17.9" | N/A | N/A |
| Sugar City | 43°F | 57°F | 29°F | N/A | N/A | N/A |
| Swan Falls Powerhouse | 55°F | 67°F | 43°F | 7.9" | N/A | 56/100 |
| Swan Valley | 43°F | 57°F | 28°F | 20.1" | N/A | N/A |
| Taylor Rch | 46°F | 59°F | 33°F | 14.9" | 31.2" | 49/100 |
| Tetonia Exp Stn | 39°F | 52°F | 27°F | 19.0" | N/A | 40/100 |
| Twin Falls | 49°F | 61°F | 37°F | 10.8" | 24.2" | 49/100 |
| Twin Falls Sun Vly Rgnl | 49°F | 61°F | 37°F | 10.3" | N/A | 52/100 |
| Twin Falls-kmvt | 52°F | 65°F | 38°F | 9.2" | N/A | 40/100 |
| Wallace | 46°F | 56°F | 36°F | 37.2" | 75.6" | 54/100 |
| Warren | 38°F | 55°F | 22°F | N/A | N/A | N/A |
| Weiser | 52°F | 65°F | 40°F | 13.4" | N/A | 52/100 |
| Winchester | 45°F | 55°F | 34°F | 21.8" | 86.5" | 44/100 |
| Yellowpine | 44°F | 59°F | 29°F | 24.0" | N/A | 52/100 |
| Yellowpine Bar | 50°F | 63°F | 36°F | 21.9" | 44.6" | 59/100 |
Source: NOAA National Centers for Environmental Information U.S. Climate Normals v1.0.1 · 1991-2020 Statewide aggregates for Idaho computed as the simple average across its 139 station-mapped locations, each represented by its primary NOAA station (262 stations in the state network).
Climate Insight: Idaho
Idaho's climate profile is aggregated from 139 station-mapped locations and 262 NOAA weather stations reporting under the 1991–2020 U.S. Climate Normals program. The statewide average annual temperature sits at 46°F, which is the simple average across all tracked station-mapped locations rather than any single station's reading. Because Idaho spans multiple latitudes, elevations, and proximities to large water bodies, local conditions can differ from this headline number by wide margins; coastal, valley, and mountain stations often diverge by ten degrees or more even within a single month.
Precipitation and snowfall averages round out the climatological picture. Across Idaho, annual precipitation averages 18.0 inches, with typical seasonal snowfall near 44.6 inches statewide. These numbers combine rain, sleet, and snow water-equivalent and describe the thirty-year normal rather than any particular recent year. Readers evaluating a specific destination should drill into one of the 139 individual location profiles below; each station record varies with local geography, and the statewide figures here are averages that mask meaningful intrastate differences.
For planning purposes, the location table above is sorted to help you compare averages side-by-side: annual mean temperature, average daily high and low, precipitation totals, snowfall, and PlainClimate's climate comfort score. That 1–100 score combines temperature mildness, precipitation moderation, snowfall burden, and frost-free growing-season length from each location's NOAA normal. It is a climate-only comparison, not a NOAA or overall livability rating. Use it as a starting point, then open each location profile for the exact score inputs, monthly breakdowns, degree-day totals, frost dates, and separately reported humidity metrics.
Nationwide similar states
Other states closest to Idaho on two NOAA statewide-average axes (annual temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest 50-state peers by avg_temp (46°F here).
- Colorado 46°F · 0.2°F off
- South Dakota 46°F · 0.5°F off
- Michigan 46°F · 0.6°F off
- New York 48°F · 1.4°F off
Closest by annual precipitation
Nearest peers by avg_precip (18.0" here), excluding temperature-peer codes.
- North Dakota 19.2" · 1.2" off
- Montana 15.9" · 2.1" off
- California 21.6" · 3.6" off
- Wyoming 14.0" · 4.0" off
Frequently Asked Questions
What is the average temperature in Idaho? ▼
Does the climate vary a lot within Idaho? ▼
Where does Idaho rank nationally for temperature? ▼
What is the most comfortable station-mapped location in Idaho? ▼
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.