Multnomah County Klima and Average Vær
Klima of Multnomah County: average temperatures, rainfall and seasons month by month.
Klima in Multnomah County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Måned | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januar | 8° | 1° | 176 mm | ★★☆☆☆ |
| februar | 10° | 3° | 169 mm | ★★☆☆☆ |
| mars | 13° | 5° | 164 mm | ★★☆☆☆ |
| april | 16° | 6° | 77 mm | ★★★★☆ |
| mai | 20° | 9° | 64 mm | ★★★★☆ |
| juni | 24° | 12° | 52 mm | ★★★★☆ |
| juli | 29° | 15° | 7 mm | ★★★★★ |
| august | 28° | 15° | 13 mm | ★★★★★ |
| september | 23° | 13° | 51 mm | ★★★★☆ |
| oktober | 17° | 9° | 151 mm | ★★★☆☆ |
| november | 11° | 6° | 218 mm | ★★☆☆☆ |
| desember | 10° | 5° | 274 mm | ★☆☆☆☆ |
Klima type: Temperate. Kilde: Open-Meteo archive (ERA5).
Recent extremes in Multnomah County
Høyest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Multnomah County compares med nearby places
Annual averages, and the difference against Multnomah County.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Portland | 0 km | 12°C | about the same | 1416 mm |
| ZIP Code 97205 | 1 km | 12°C | about the same | 1416 mm |
| Portland International Airport | 11 km | 12°C | about the same | 1539 mm |
| Columbia River | 13 km | 12°C | about the same | 1365 mm |
| Silver Falls State Park | 71 km | 10°C | 2°C cooler | 2007 mm |
Beste tid å besøke Multnomah County
Go in juni, juli and august. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: januar, november and desember - expect the least comfortable mix of heat, cold or rain.
What this means for Multnomah County
Today is slightly cooler than average for september. The forecast high of 20°C is 3.5°C below the 23°C typical for this month.
Regn is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in juni til august.
The gap between the warmest and coldest month averages 17°C.
What til pack, what til skip
- Lightweight, light-coloured clothing and a refillable water bottle
- sønglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid januar, november and desember - historically the least comfortable months here.
Sammendrag
Multnomah County is a county in Oregon. Multnomah County is a county in the United States. Befolkningen er rundt 800.000.
Akkurat nå er det 18°C (64°F) in Multnomah County med klar himmel. Det føles som 18°C. I dag varierer temperaturen mellom 13°C til 20°C. Sannsynligheten for nedbør er 5%. Sightseeing conditions score 9.7/10 - utmerket — dra nå.
Beste tidspunkt å besøke Multnomah County is juni, juli and august. Klimaet er temperate. januar, november and desember tend til be the least comfortable months. juli is the warmest month med average highs near 29°C, while januar is the coldest med lows near 1°C.
The closest major airport is Portland International Airport (PDX), about 11 km away. Nearby highlights include Columbia River, Silver Falls State Park, Mount Hood and Cannon Beach.
Kort sagt. Today is slightly cooler than average for september. The forecast high of 20°C is 3.5°C below the 23°C typical for this month. The best window til be outside is roughly 2 PM til 5 PM, when temperature, rain chance and wind line up best. sightseeing is the strongest bet in Multnomah County today at 9.7/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Multnomah County
| Type | County |
|---|---|
| State | Oregon |
| Land | USA |
| Kontinent | Nord-Amerika |
| Koordinater | 45°30′54.7″N 122°40′42.2″W (45.5152, -122.6784) |
| Befolkning | 800.000 |
| Lokal tid | 5:03 PM (UTC-07:00) |
| Best months | juni, juli and august |
| Klima | Temperate |
Vær map for Multnomah County
Animated model layers. Pick a layer til load it.
Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Explore Multnomah County
Every topic we hold for this place, and the same topic for the places around it.
Klima for related places
Frequently asked questions
Where is Multnomah County?
Multnomah County is a county in Oregon. Its coordinates are 45.5152, -122.6784. It lies in Nord-Amerika.
What is the weather like in Multnomah County akkurat nå?
It is currently 18°C (64°F) med klar himmel. Luftfuktighet is 72% and wind is 6 km/h.
When is the best time til visit Multnomah County?
juni, juli and august offer the most comfortable conditions in Multnomah County, which has a temperate climate. januar, november and desember are usually the hardest months for outdoor plans.
What time zone is Multnomah County in?
Multnomah County observes America/Los_Angeles (UTC-07:00). The local time is 5:03 PM.
How many people live in Multnomah County?
Multnomah County has a population of approximately 800.000.
What is the nearest airport til Multnomah County?
The closest airports are Portland International Airport (PDX), 11 km away, Seattle-Tacoma International Airport (SEA), 217 km away and Vancouver International Airport (YVR), 411 km away.
What are the top things til do in Multnomah County?
Popular options include Columbia River, Silver Falls State Park, Mount Hood, Cannon Beach, Mount Regnier and Mount Regnier National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Værmelding and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Vær Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated september 30, 2026 at 5:03 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
