Average Annual Temperatures in Oregon





Average annual temperatures for cities, towns, parks and lakes throughout Oregon are listed below in degrees Fahrenheit and Celsius.

You can jump to a separate table for each region of the state: Oregon Coast, Willamette Valley, Cascade Mountains, Central Oregon and Eastern Oregon.

The tables give the normals for maximum and minimum yearly temperatures based on weather data collected from 1991 to 2020.

Place name links take you to more detailed temperature information for that location.

Oregon Coast

Average annual temperatures
High °F Low °F Place High °C Low °C
58 45 Astoria 15 7
60 48 Brookings 16 9
61 47 Gold Beach 16 8
58 44 Honeyman State Park 14 7
57 44 Newport 14 7
60 46 North Bend 15 8
60 47 Port Orford 16 8
59 45 Seaside 15 7
60 42 Tillamook 15 6

Willamette Valley

Average temperatures for the year
High °F Low °F Place High °C Low °C
64 42 Corvallis 18 6
64 42 Eugene 18 6
65 45 Lebanon 18 7
63 46 Portland 17 8
64 44 Salem 18 7

Cascade Mountains

Average yearly temperatures
High °F Low °F Place High °C Low °C
48 28 Crater Lake Park 9 -2
60 45 Detroit Lake Dam 16 7
51 35 Government Camp 10 2
68 43 Grants Pass 20 6
55 33 Howard Prairie Lake Dam 13 0
62 32 Klamath Falls 17 0
60 34 Lakeview 16 1
62 39 McKenzie Bridge 17 4
68 44 Medford 20 6
68 45 Roseburg 20 7
59 41 Three Lynx 15 5
62 40 Toketee Falls 17 4
59 32 Wickiup Reservoir Dam 15 0

Central Oregon

Annual average temperature
High °F Low °F Place High °C Low °C
61 34 Bend 16 1
61 41 Hood River 16 5
62 32 Madras 17 0
66 42 The Dalles 19 5

Eastern Oregon

Average annual temperatures
High °F Low °F Place High °C Low °C
59 31 Hart Mountain Antelope Refuge 15 0
63 40 Heppner 17 4
61 38 La Grande 16 3
66 36 Lake Owyhee Dam 19 2
60 33 Malheur National Wildlife Refuge 16 0
64 39 Ontario 18 4
66 40 Pendleton 19 4
57 24 Seneca 14 -4
65 33 Summer Lake 18 1
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Oregon Temperatures
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