City, County & Regional Parks · California
William Heise County Park
City, County & Regional Parks · California, United States
- Sites
- 14
- Elevation
- 4,259 ft
- Dark sky
- Bortle class 2
- Nearest town
- Julian
- Phone
- 858-565-3600
About
San Diego County park amid 900 acres of mountain forest near Julian. 14 cabins (224 sq ft each), insulated with moderate climate control, lighting, table/chairs, and a food pantry; wood-framed beds (mattress/bedding not included). Each cabin has a deck, picnic table, and fire ring.
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 58° | 41° | 29° | 74° | 2 of 11 |
| February | 57° | 38° | 21° | 77° | 4 of 11 |
| March | 58° | 40° | 30° | 88° | 1 of 11 |
| April | 66° | 44° | 33° | 83° | 0 of 11 |
| May | 74° | 48° | 39° | 88° | 0 of 11 |
| June | 85° | 55° | 46° | 98° | 0 of 11 |
| July | 91° | 64° | 51° | 99° | 0 of 11 |
| August | 89° | 63° | 54° | 99° | 0 of 11 |
| September | 84° | 60° | 48° | 94° | 0 of 11 |
| October | 75° | 52° | 41° | 90° | 0 of 10 |
| November | 68° | 46° | 34° | 79° | 0 of 10 |
| December | 60° | 40° | 27° | 74° | 2 of 10 |
Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.
Nearby campgrounds
- Cuyamaca Rancho State Park · California State Parks · 9 mi
- El Prado Group · USDA Forest Service · 13 mi · 5 sites
- Laguna · USDA Forest Service · 14 mi · 97 sites
- Horse Heaven Group · USDA Forest Service · 14 mi · 3 sites
- Vallecito County Park · City, County & Regional Parks · 15 mi
All public campgrounds in California · Every state and province · Facts read from the operator 2026-08-29. Confirm fees, rules and current status with the operator before you go.