Casa Grande Ruins National Monument in December
December at Casa Grande Ruins National Monument averages a daytime high near 67°F and an overnight low around 36°F, with about 0.8" of precipitation. Visitation runs about 1× the park's average month, which makes December an average month here.
- Average low
- 36°F
- Average high
- 67°F
Range across the year: 36°F to 107°F
- Precipitation
- 0.8 in
- Daylight
- 9.8 hours
Roughly 8% of the park's yearly visitors come in December: roughly 6,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes December the 6th-busiest of the park's twelve months, sitting between the March peak (2.2×) and the August low (0.4×).
December is our recommended month at Casa Grande Ruins: the lightest crowds of the park's good-weather months.
The daily average of about 52°F is a comfortable range for hiking and being outdoors all day. These figures are 1991–2020 NOAA climate normals from the nearest station, about 0.3 miles from the park.
Because June, July and August together draw about 12% of annual visitors, choosing December instead steps outside that summer crush — the single biggest lever on how crowded the park feels.
You'll have about 9.8 hours of daylight in December to explore — near the year-round minimum.
Park-wide, 2024 drew 104,429 recreation visits, down 6.3% from 111,392 in 2023.
Across the past decade overall visitation has risen about 17.5%, so a December visit is likely to feel busier than it did a few years ago.
How December compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| November | 78°F / 44°F | 1.1× Average | 66 Good |
| December | 67°F / 36°F | 0.9× Average | 56 Fair |
| January | 68°F / 37°F | 1.4× Busy | 48 Fair |
All twelve months at Casa Grande Ruins, with the best time to visit.
Frequently Asked Questions
December averages a daytime high near 67°F and an overnight low around 36°F at Casa Grande Ruins National Monument, with about 0.8 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 0.3 miles from the park, so conditions inside the park can differ, especially at other elevations.
December is average at Casa Grande Ruins National Monument (about 0.9× the average month). Our best-time score rates it "Fair" at 56/100. December is our recommended month for this park.
The busiest month is March and the quietest is August. December sits at about 0.9× the park's average, or 8% of annual visitation.
A typical December sees about 6,000 recreation visits at Casa Grande Ruins National Monument, based on National Park Service monthly counts from 1979–2025.
Where to stay near Casa Grande Ruins in December
Booking a December trip to Casa Grande Ruins National Monument? Compare hotels, cabins and vacation rentals near the park with live December availability and prices.
Top-rated places to stay near Casa Grande Ruins
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See the full ranking of the best national parks to visit in December.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.