Average Precipitation for Oregon in April





The tables below give monthly averages for rainfall plus snowfall during April 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 April
Days Place Inches Milli­metres
19 Astoria 5.8 147
16 Brookings 6.7 171
16 Gold Beach 7.1 180
17 Newport 5.5 140
17 North Bend 5.4 137
18 Port Orford 6.8 172
17 Seaside 6.6 167
20 Tillamook 7.5 190

Willamette Valley

April averages for total rainfall plus snowfall
Days Place Inches Milli­metres
18 Corvallis 3.3 84
16 Eugene 3.3 84
17 Portland 3.6 92
16 Salem 3.1 79

Cascade Mountains

Average amount of rain and snow in April
Days Place Inches Milli­metres
17 Crater Lake Park 6.2 156
20 Detroit Lake Dam 8.6 219
19 Government Camp 7.8 198
13 Grants Pass 2.3 59
13 Howard Prairie Lake Dam 2.7 68
9 Klamath Falls 1.1 27
11 Lakeview 1.5 39
11 Medford 1.5 38
16 Roseburg 3.1 78
19 Three Lynx 6.2 158
18 Toketee Falls 4.7 120
10 Wickiup Reservoir Dam 1.3 32

Central Oregon

Precipitation totals for April
Days Place Inches Milli­metres
6 Bend 0.8 20
13 Hood River 1.8 47
8 Madras 0.9 23
8 The Dalles 1.0 24

Eastern Oregon

Total precipitation during April
Days Place Inches Milli­metres
11 Heppner 1.5 37
10 La Grande 1.8 46
8 Lake Owyhee Dam 0.8 21
8 Ontario 0.9 22
10 Pendleton 1.2 31
11 Seneca 1.2 30
13 Summer Lake 1.2 30
Reference

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

Oregon Precipitation
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