Risk Snapshot
Ratings represent risk relative to North America. 100 is the highest risk for the hazard and 1 is the lowest, but does not indicate no risk. Flood and fire are rated based on the buildings in Hillsboro exposed to these hazards. See hazard sections below and check your address for details.
Precipitation risk in Hillsboro, OR is extreme. Heat and drought risk is significant. About 62% of buildings in Hillsboro, OR are at risk of wildfire, and the risk level for these buildings is significant. About 10% of buildings in Hillsboro, OR are at risk of flooding, and the risk level for these buildings is high. 
The share of precipitation during the biggest downpours in Hillsboro is projected to increase.
A downpour for Hillsboro, OR is a two-day rainfall total over 0.8 inches. Around 1990, about 43.0% of precipitation fell during these downpours. In 2050, this is projected to be about 48.0%. The annual precipitation in Hillsboro, OR is projected to increase from about 41.4" to about 42.4".
The risk on the most dangerous fire weather days in Hillsboro is high. The number of these days per year is expected to increase through 2050.
Of 92 census tracts in Hillsboro, OR, there are 73 where more than a quarter of buildings have significant fire risk, and 49 where more than half of buildings have significant fire risk. Property owners can take steps to mitigate their risks from wildfires.
The number of the hottest days in Hillsboro is projected to keep increasing.
In a typical year around 1990, people in Hillsboro, OR experienced about 7 days above 91.6ºF in a year. By 2050, people in Hillsboro are projected to experience an average of about 26 days per year over 91.6ºF.
The average water stress in Hillsboro is projected to be higher around 2050 than around 2015.
The Tualatin watershed, which contains Hillsboro, OR, has experienced 496 weeks (41% of weeks) since 2000 with some of its area in drought. Source: National Drought Monitor.
Buildings at risk in Hillsboro average about a 39% chance of a flood about 1.6 feet deep over 30 years.
Of 92 census tracts in Hillsboro, OR, there are 4 where more than a quarter of buildings have significant risk from high tide flooding, surface (pluvial) flooding, and riverine (fluvial) flooding. Property owners can check a specific address for flood risk including FEMA flood zone, then take steps to reduce their vulnerability to flooding damage.
The projections on this page describe a future that we still have a chance to avoid. To keep average global warming below 1.5ºC—the goal agreed on in the 2015 Paris Climate Accords—we need to act rapidly to drastically reduce greenhouse gas emissions.
The risks presented on this page reflect modeled averages for Hillsboro, OR under one projected emissions scenario and can vary for individual properties. To find out more, check a specific address and request a report describing risks to your property and in your area.
The latest Intergovernmental Panel on Climate Change report states: “If global emissions continue at current rates, the remaining carbon budget for keeping warming to 1.5ºC will likely be exhausted before 2030.” This remaining carbon budget is about the same amount as total global emissions 2010-2019.
Check our free report for tips on protecting your home from hazards.















