How to Prepare for Extreme Heat in Yolo County: Cooling Centers, Alerts, and Cool Davis Resources

Yolo County is experiencing its first major heatwave of the season, with daytime temperatures forecast to exceed 100°F from Thursday through Sunday. A Heat Advisory is in effect, and fire weather risks are elevated due to low humidity and gusty winds—especially on Friday and Saturday. Overnight temperatures are expected to remain high, increasing the risk of heat-related illness.

Cooling Centers and Alerts:

California Is Heating Up — The Data is Clear

This heatwave reflects a broader climate trend. The graphic below from the Show Your Stripes project shows Sacramento’s average temperatures over the past century. Blue stripes represent cooler years; red stripes show warmer years. The pattern reveals a clear shift toward rising temperatures.


Graphic and lead scientist: Ed Hawkins, National Centre for Atmospheric Science, University of Reading.
Data: Berkeley Earth, ERA5-Land, NOAA, UK Met Office, MeteoSwiss, SMHI, and others.
More at: showyourstripes.info – https://environmentalinsightpartners.com/ 

Cool Davis Resources for Staying Safe and Climate-Ready

Cool Davis offers tools and resources to help Yolo County residents stay safe during extreme heat and build long-term resilience.

  • Visit cooldavis.org for guidance on climate action, energy savings, and local preparedness. Stay in the know on climate impacts and resilience based solutions.

  • Download the Cool Davis Renters Guide and Checklist for practical tips on sustainability.

  • Watch the latest Make a Plan Workshop to learn how to maintain your HVAC system or plan for a heat pump upgrade.

  • Reduce peak electricity use by:

    • Running appliances early or late in the day

    • Line-drying clothes

    • Switching to LED lighting

Prepare for Power Outages and Medical Needs

High heat increases the risk of Public Safety Power Shutoffs (PSPS) or other outages. If anyone in your household depends on powered medical devices:

  • Fully charge essential equipment

  • Keep backup power or batteries on hand

  • Enroll in the utility’s medical baseline program: bit.ly/CPUCbaseline

Check PG&E’s alerts page for local outage updates.

Stay Cool and Know the Signs of Heat Illness

Resources from Listos California and Heat Ready California provide key safety tips, including:

  • Recognizing signs of heatstroke and heat exhaustion: dizziness, headache, nausea, heavy sweating

  • Staying hydrated and seeking out cool, air-conditioned locations

  • Looking out for children, older adults, neighbors, and pets

Access downloadable resources:

For more information on preparing for extreme heat and making your home more climate-resilient, visit cooldavis.org.