Average Annual Temperatures in Oregon

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

The tables give the normals for maximum and minimum yearly temperatures based on weather data collected from 1981 to 2010.

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

Oregon Coast

Average annual temperatures
High °F Low °F Place High °C Low °C
59 44 Astoria 15  7
62 47 Brookings 16  8
61 46 Gold Beach 16  8
57 44 Honeyman State Park 14  7
58 45 Newport 15  7
58 46 North Bend 14  8
60 46 Port Orford 15  8
57 44 Seaside 14  7
60 42 Tillamook 16  6

Willamette Valley

Average temperatures for the year
High °F Low °F Place High °C Low °C
63 42 Corvallis 17  6
63 42 Eugene 17  5
63 45 Portland 17  7
64 43 Salem 18  6

Cascade Mountains

Average yearly temperatures
High °F Low °F Place High °C Low °C
48 27 Crater Lake Park 9 -3
61 42 Detroit Lake Dam 16  6
50 34 Government Camp 10  1
57 33 Howard Prairie Lake Dam 14  1
65 36 Klamath Falls 18  2
60 34 Lakeview 16  1
63 40 McKenzie Bridge 17  4
68 43 Medford 20  6
59 40 Three Lynx 15  5
61 40 Toketee Falls 16  4
59 31 Wickiup Reservoir Dam 15  0

Central Oregon

Annual average temperature
High °F Low °F Place High °C Low °C
60 34 Bend 15  1
62 41 Hood River 17  5
62 33 Madras 17  1
66 41 The Dalles 19  5

Eastern Oregon

Average annual temperatures
High °F Low °F Place High °C Low °C
59 30 Hart Mountain Antelope Refuge 15 -1
63 39 Heppner 17  4
61 37 La Grande 16  3
66 36 Lake Owyhee Dam 19  2
60 33 Malheur Wildlife Refuge 15  0
65 37 Ontario 18  3
63 41 Pendleton 17  5
56 25 Seneca 14 -4
64 37 Summer Lake 18  3
63 35 Whitehorse Ranch 17  2
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

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