Average Precipitation for Oregon in January





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

Each place has a total for the amount of precipitation it usually receives this month. There is also a count of the number of days with wet weather, when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The precipitation totals are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.

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
22 Astoria 10.6 269
20 Brookings 13.1 332
18 Gold Beach 12.0 304
20 Newport 10.3 262
19 North Bend 9.4 240
20 Port Orford 11.6 295
21 Seaside 11.0 280
22 Tillamook 13.4 340

Willamette Valley

January averages for total rainfall plus snowfall
Days Place Inches Milli­metres
21 Corvallis 6.5 164
18 Eugene 6.1 154
20 Portland 6.0 153
18 Salem 6.1 154

Cascade Mountains

Average amount of rain and snow in January
Days Place Inches Milli­metres
18 Crater Lake Park 10.1 257
20 Detroit Lake Dam 13.1 332
20 Government Camp 12.6 320
17 Grants Pass 5.1 129
15 Howard Prairie Lake Dam 4.7 119
11 Klamath Falls 1.5 38
11 Lakeview 1.9 48
14 Medford 2.7 69
18 Roseburg 5.3 134
20 Three Lynx 9.3 235
18 Toketee Falls 6.5 166
13 Wickiup Reservoir Dam 3.0 75

Central Oregon

Precipitation totals for January
Days Place Inches Milli­metres
9 Bend 1.4 36
19 Hood River 5.2 133
8 Madras 0.9 22
12 The Dalles 2.5 62

Eastern Oregon

Total precipitation during January
Days Place Inches Milli­metres
11 Heppner 1.3 34
10 La Grande 1.7 42
9 Lake Owyhee Dam 1.1 27
8 Ontario 1.3 33
12 Pendleton 1.5 39
12 Seneca 1.6 40
13 Summer Lake 1.6 40
Reference

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

Oregon Precipitation
Back to Top