Explore Location | CHAT - California Heat Assessment Tool

California Heat Assessment Tool

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Heat Health Events (HHEs)

Projected Changes to HHEs

Use timeline below to see projected changes
Click a census tract to view historical and projected information in more detail

Annual Number of Health Events

Average Event Duration

Average Maximum Temperature

Average Minimum Temperature

Average Maximum Relative Humidity

Average Minimum Relative Humidity

Please note: All HHE variables displayed on the map are based on RCP 8.5, the months of June, July, and August; and the 95th percentile.

Vulnerability Indicators

Heat Health Action Index

Heat Vulnerability

Social Vulnerability

Percent No HS Diploma

Percent Outdoor Workers

Percent Poverty

Percent No Vehicle Access

Percent Linguistic Isolation

Health

Rate of Asthma

Percent Low Birth Weight

Rate of Cardiovascular Disease

Environment

PM2.5 Concentration

Ozone Exceedence

Percent Impervious Surfaces

Change in Development (2050)

Percent No Tree Canopy

Urban Heat Island (Delta)

California Heat Assessment Tool

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Projected HHE
Historical HHE

The following graphs show the frequency and duration of heat health events for the selected census tract. To view methods, click here.

Population Type

General

Vulnerable

Explore Past Heat Event

2006 Heat Wave

Time of Season

April, May

June, July, August

September, October

All

Percentile

95th

66th

50th

33rd

5th

Data

Projected

Relative Change

These thresholds reflect the average temperature and humidity levels at which excessive heat morbidity occured in the recent past. Take note of the differences between groups and the 2006 Heat Wave.