Key facts: Salem
- Salem gets about 40 inches of precipitation a year, most of it between October and April.[1]
- During the 1964 Christmas flood, Salem Memorial Hospital was evacuated and 121 patients were moved.[2]
- The Willamette splits the city, with Marion County on the east bank and Polk County and West Salem on the west.[1]
Creeks through town
A closer look in Salem
Crawl spaces in a wet climate
Many mid-century homes sit on crawl spaces, where a slow leak or seepage may run for weeks unseen. A wet smell in winter is a good reason to look. Vapor barriers and sound insulation matter, and a good contractor will show you photos from below.
Flood claims recorded in Marion County
Salem sits in Marion County. FEMA publishes every National Flood Insurance Program claim with personal details removed, which gives a plain record of where water has reached insured buildings here.
| Measure | Count |
|---|---|
| Flood insurance claims on record | 400 |
| Year with the most claims | 1996 (165) |
| Largest named event | Flooding (174) |
| Claims outside high-risk A and V zones | 42% |
| Claims on buildings built before 1975 | 59% |
County-wide counts of insured claims only. Uninsured losses, burst pipes and appliance leaks are not in this data.
What the Salem claim record shows
About 42% of claims with a recorded zone came from outside the high-risk A and V zones, so a moderate-risk label does not mean a Salem home stays dry.
If your Salem home is older, note that buildings from before 1975 make up 59% of county claims with a known build date. Many predate current flood maps, so inspect low outlets, ductwork and subfloors closely after any water event.
Federal disaster history for Marion County
FEMA lists 15 federal declarations covering Marion County. The most common types are fire (4), flood (4) and severe storm (3). The latest are Liberty Fire in 2023, Severe Winter Storm in 2021 and Wildfires and Straight-Line Winds in 2020. Federal aid can open after a declaration, so Salem owners should look it up before discarding damaged items.
Salem weather and your home
Weather records for Salem from 2015 through 2024 average 46 inches of precipitation a year, and December and January are the wettest months. The area averages 6.6 days a year with an inch or more.
Frost reaches Salem on about 44 nights a year, but hard freezes are less common, which can leave pipes in attics and outer walls poorly protected in a cold snap.
When rain falls in Salem
Seasonal averages for Salem, 2015 through 2024. Plan roof, gutter and sump pump checks before the wettest stretch.
| Season | Average | Share of year |
|---|---|---|
| January to March | 16.9 in | 37% |
| April to June | 7.9 in | 17% |
| July to September | 2.4 in | 5% |
| October to December | 18.7 in | 41% |
Modeled from Open-Meteo historical weather data. Precipitation includes rain and melted snow.
Salem home checklist from these records
- Don't rely on recent quiet years. Only 9% of Marion County claims date from 2015 or later, so older floods still show what can happen.
- Check roof flashing and drains before December, the wettest month in Salem.
- Keep dated photos of each room. After Flooding, 174 insured Marion County owners filed claims at about the same time.
What to tell the Salem contractor
- Which county you are in
- Whether you have a crawl space
- Whether the smell is new
Services Salem callers ask about
Questions
Salem water damage questions
Do I need permits in West Salem?
Local permit rules depend on the work and jurisdiction. Ask the contractor and the city.
Where can I check a Salem contractor?
Search the Oregon Construction Contractors Board before you sign.[3]