Casa Grande Ruins National Monument
Sky Score 41/100≈ Bortle 5
Casa Grande Ruins National Monument is a protected area in Arizona with a measured darkness of 54/100 (≈ Bortle 5), a usable sky for casual stargazing, though city glow is noticeable. The best month to come is typically May, when about 83% of the night sky is clear.
Tonight's outlook: 35/100. The moon is 7% lit and above the horizon 13% of the night; typical August clear-sky odds here are 57%. Updated daily.
Best time to stargaze at Casa Grande Ruins National Monument
| Month | Clear night skies | Sky Score (new moon) |
|---|---|---|
| January | 61% | 37/100 |
| February | 68% | 40/100 |
| March | 67% | 40/100 |
| April | 78% | 45/100 |
| May ★ | 83% | 47/100 |
| June | 80% | 45/100 |
| July | 49% | 32/100 |
| August | 57% | 35/100 |
| September | 75% | 43/100 |
| October | 83% | 47/100 |
| November | 72% | 42/100 |
| December | 64% | 38/100 |
Scores assume a moonless night, check the moon before you drive (methodology).
Where to stay near Casa Grande Ruins National Monument
No lodging within 80 km, this is true wilderness. Plan to camp, or base yourself in the nearest gateway town and drive out for the night.
Nearby spots in Arizona
- Hohokam Pima National Monument 41.3 km · Sky Score 37/100
- Ironwood Forest National Monument 61.5 km · Sky Score 56/100
- Sonoran Desert National Monument 74 km · Sky Score 62/100
- Tonto National Monument 82.2 km · Sky Score 62/100
- Saguaro National Park - Tucson Mountain District 84.5 km · Sky Score 45/100