Heat Island Mitigation: Santa Clara vs Sunnyvale
How do heat island mitigation rules compare between Santa Clara, CA and Sunnyvale, CA?
Santa Clara and Sunnyvale have similar restriction levels.
Santa Clara, CA
Santa Clara County
The OneSCC 2030 Sustainability Master Plan and county tree canopy goals guide heat island mitigation through cool roofs, cool pavement, urban forestry, and cooling-center activations when National Weather Service forecasts highs at or above 95 degrees Fahrenheit for two consecutive days in unincorporated areas.
View full Santa Clara rules →Sunnyvale, CA
Santa Clara County
The OneSCC 2030 Sustainability Master Plan and county tree canopy goals guide heat island mitigation through cool roofs, cool pavement, urban forestry, and cooling-center activations when National Weather Service forecasts highs at or above 95 degrees Fahrenheit for two consecutive days in unincorporated areas.
View full Sunnyvale rules →Key Facts Comparison
| Fact | Santa Clara | Sunnyvale |
|---|---|---|
| Activation threshold | 95F for 48 hours | 95F for 48 hours |
| Single-day threshold | 100F any single day | 100F any single day |
| Lead agency | Office of Emergency Management | Office of Emergency Management |
| Tree partner | Our City Forest, county Parks | Our City Forest, county Parks |
| Cooling sites | Libraries, senior, community centers | Libraries, senior, community centers |
Highlighted rows indicate differences between cities.
Santa Clara FAQ
Where is the nearest cooling center?
Call 211 Bay Area or check sccgov.org/emergency when a heat alert is active. Most county libraries, senior centers, and community rooms participate. Many offer extended evening hours during multi-day heat events with free water available.
Does the county pay for tree planting on my street?
Our City Forest partners with county Parks and cities on free street-tree plantings in equity zones, including delivery, hole-digging, and 3-year establishment care. Outside those zones, owners typically arrange and pay for parkway plantings themselves.
Sunnyvale FAQ
Where is the nearest cooling center?
Call 211 Bay Area or check sccgov.org/emergency when a heat alert is active. Most county libraries, senior centers, and community rooms participate. Many offer extended evening hours during multi-day heat events with free water available.
Does the county pay for tree planting on my street?
Our City Forest partners with county Parks and cities on free street-tree plantings in equity zones, including delivery, hole-digging, and 3-year establishment care. Outside those zones, owners typically arrange and pay for parkway plantings themselves.
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