Best time to visit Craters of the Moon National Monument
August and September are the best balance at Craters of the Moon National Monument: mild and dry for the park (average highs 69° to 80°F), with very busy crowds. September is busiest, with about 50,000 visitors. April is the quietest, with highs near 50°F.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
Month by month
- Station
- Craters Of The Moon, ID USC00102260
- Lat / lon
- 43.46, -113.56
- Elevation
- 5,914 ft
- From park center
- 4.9 mi
- Normals
- 1991–2020
- Visits
- 2023–2025
| Field | Jan | Feb | Mar | Apr | May | Jun | Jul | Augbest | Sepbest | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High, °F | 25° | 29° | 39° | 50° | 61° | 71° | 82° | 80° | 69° | 54° | 36° | 24° | 52° |
| Low, °F | 7° | 10° | 18° | 26° | 33° | 41° | 49° | 47° | 38° | 27° | 16° | 8° | 27° |
| Precipitation, in | 2.0 | 1.4 | 1.1 | 1.1 | 1.6 | 1.2 | 0.4 | 0.7 | 0.8 | 1.3 | 1.1 | 2.2 | 15.0 |
| Snow, in | 20.8 | 15.3 | 5.4 | 4.6 | 0.6 | 0.1 | 0 | 0 | 0.1 | 2.0 | 8.5 | 22.9 | 80.3 |
| Daylight, h:mm | 9:17 | 10:26 | 11:47 | 13:21 | 14:40 | 15:23 | 15:06 | 13:58 | 12:27 | 10:57 | 9:37 | 8:58 | |
| Visitors, thousands | 2 | 5 | 7 | 12 | 29 | 47 | 49 | 42 | 50 | 26 | 6 | 3 | 277 |
| Crowds | Quiet | Quiet | Quiet | Quiet | Busy | Very busy | Very busy | Very busy | Very busy | Moderate | Quiet | Quiet | |
| Weather | Cold | Cold | Cold | Cool | Mild, wet | Mild, wet | Hot | Mild | Mild | Cool | Cold | Cold |
| Month | High °F | Low °F | Precip., in | Snow, in | Daylight | Visitors | Crowds | Weather |
|---|---|---|---|---|---|---|---|---|
| January | 25° | 7° | 2.0 | 20.8 | 9:17 | 2,200 | Quiet | Cold |
| February | 29° | 10° | 1.4 | 15.3 | 10:26 | 4,600 | Quiet | Cold |
| March | 39° | 18° | 1.1 | 5.4 | 11:47 | 6,500 | Quiet | Cold |
| April | 50° | 26° | 1.1 | 4.6 | 13:21 | 12,000 | Quiet | Cool |
| May | 61° | 33° | 1.6 | 0.6 | 14:40 | 29,000 | Busy | Mild, wet |
| June | 71° | 41° | 1.2 | 0.1 | 15:23 | 47,000 | Very busy | Mild, wet |
| July | 82° | 49° | 0.4 | 0 | 15:06 | 49,000 | Very busy | Hot |
| Augustbest | 80° | 47° | 0.7 | 0 | 13:58 | 42,000 | Very busy | Mild |
| Septemberbest | 69° | 38° | 0.8 | 0.1 | 12:27 | 50,000 | Very busy | Mild |
| October | 54° | 27° | 1.3 | 2.0 | 10:57 | 26,000 | Moderate | Cool |
| November | 36° | 16° | 1.1 | 8.5 | 9:37 | 6,300 | Quiet | Cold |
| December | 24° | 8° | 2.2 | 22.9 | 8:58 | 3,300 | Quiet | Cold |
| Year | 52° | 27° | 15.0 | 80.3 | 277,000 | |||
Year: average high and low, total precipitation and snowfall, total visitors. T = trace (under 0.05 in). – = not measured at this station. Updated .
- Hottest July, average high 82°F
- Coldest nights January, average low 7°F
- Source NOAA National Centers for Environmental Information; National Park Service
- Visitors a year about 277,000 (2023–2025 average)
- State Idaho
Closures, reservations and alerts: Craters of the Moon National Monument on nps.gov
Nearby
- City of Rocks National ReserveBest: Apr, Sep and Oct · Idaho
- Golden Spike National Historical ParkBest: Jun and Sep · Utah
- Grand Teton National ParkBest: Jun, Aug and Sep · Wyoming
- John D. Rockefeller, Jr., Memorial ParkwayBest: May, Jun and Sep · Wyoming