Location almanac
Chill hours in 78541
The short answer
78541 averages 153 chill hours per winter (83–240 across 10 years) in USDA zone 10a.
Climate profile
| Average chill hours | 153 (83–240 across 10 winters) |
|---|---|
| USDA hardiness zone | 10a |
| Last spring frost | typically January 4 – February 19 |
Computed from 10 winters of ERA5 hourly temperature (Open-Meteo, 2015–2025); zones from USDA PHZM 2023. Data updated July 3, 2026. See methodology.
What grows here
Every variety in our database, checked against 78541’s chill hours and zone:
Good fit (16)
Chill and zone requirements are comfortably met in 78541.
| Variety | Fruit |
|---|---|
| Bearss Lime | Citrus |
| Eureka Lemon | Citrus |
| Improved Meyer Lemon | Citrus |
| Key Lime | Citrus |
| Violette de Bordeaux | Fig |
| Eva's Pride | Peach |
| Flordaprince | Peach |
| TropicBeauty | Peach |
| UFSun | Peach |
| Ambrosia | Pomegranate |
| Angel Red | Pomegranate |
| Eversweet | Pomegranate |
| Parfianka | Pomegranate |
| Salavatski | Pomegranate |
| Sweet | Pomegranate |
| Wonderful | Pomegranate |
Marginal (8)
Possible in a good year or a favorable microclimate — click through for the caveats.
| Variety | Fruit |
|---|---|
| August Pride | Peach |
| Donut | Peach |
| Tropic Snow | Peach |
| UFGold | Peach |
| Kieffer | Pear |
| Fuyu | Persimmon |
| Hachiya | Persimmon |
| Jiro | Persimmon |
Questions
- How many chill hours does 78541 get?
- 78541 averages 153 chill hours per winter, ranging from 83 to 240 across the last 10 years.
- What hardiness zone is 78541?
- 78541 is in USDA hardiness zone 10a.
Growing fruit trees in 78541? Get a care calendar anchored to this exact climate, with email reminders.
Start My OrchardSources
- [1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
- [2] USDA / PRISM (Oregon State University). 2023 USDA Plant Hardiness Zone Map — accessed July 2026