Average Precipitation for Oregon in January





The tables below give monthly averages for rainfall plus snowfall during January at cities, towns and parks in Oregon.

Each place has a total for the amount of precipitation it usually receives this month. Most sites also have information on the number of days with wet weather. That includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The precipitation totals are averages based on weather data collected from 1981 to 2010 for the NOAA National Climatic Data Center.

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 monthly precipitation in January
Days Place Inches Milli­metres
21 Astoria 10.2 259
18 Brookings 11.8 301
19 Gold Beach 11.4 291
19 Honeyman State Park 11.0 280
21 Newport 10.4 264
North Bend 10.2 259
20 Port Orford 11.6 296
21 Seaside 10.9 277
23 Tillamook 13.5 343

Willamette Valley

January averages for total rainfall plus snowfall
Days Place Inches Milli­metres
22 Corvallis 6.4 163
18 Eugene 6.9 174
21 Portland 6.1 154
18 Salem 6.0 151

Cascade Mountains

Average amount of rain and snow in January
Days Place Inches Milli­metres
18 Crater Lake Park 9.4 239
20 Detroit Lake Dam 12.7 322
20 Government Camp 12.5 317
15 Howard Prairie Lake Dam 4.5 115
11 Klamath Falls 2.0 51
11 Lakeview 1.8 44
McKenzie Bridge 8.9 227
13 Medford 2.4 62
20 Three Lynx 9.6 243
18 Toketee Falls 6.3 161
13 Wickiup Reservoir Dam 3.1 77

Central Oregon

Precipitation totals for January
Days Place Inches Milli­metres
9 Bend 1.5 39
19 Hood River 5.3 135
8 Madras 1.3 33
14 The Dalles 2.6 65

Eastern Oregon

Total precipitation during January
Days Place Inches Milli­metres
Hart Mountain Antelope Refuge 1.0 24
12 Heppner 1.5 37
10 La Grande 1.6 41
9 Lake Owyhee Dam 0.9 23
8 Malheur Wildlife Refuge 1.0 24
8 Ontario 1.2 30
12 Pendleton 1.4 36
12 Seneca 1.3 34
11 Summer Lake 1.5 37
Reference

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

Oregon Precipitation
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