Average Precipitation for Oregon in March

The tables below give monthly averages for rainfall plus snowfall during March 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 March
Days	Place	Inches	Millimetres
22	Astoria	7.9	201
17	Brookings	10.0	253
19	Gold Beach	10.3	262
21	Newport	6.8	173
19	North Bend	7.5	190
20	Port Orford	9.3	237
21	Seaside	9.4	239
22	Tillamook	10.1	255

Willamette Valley

March averages for total rainfall plus snowfall
Days	Place	Inches	Millimetres
20	Corvallis	5.0	126
18	Eugene	4.6	118
19	Portland	4.7	118
18	Salem	4.4	110

Cascade Mountains

Average amount of rain and snow in March
Days	Place	Inches	Millimetres
18	Crater Lake Park	7.8	198
21	Detroit Lake Dam	10.7	272
20	Government Camp	9.4	239
16	Grants Pass	3.7	93
16	Howard Prairie Lake Dam	3.7	93
11	Klamath Falls	1.0	26
11	Lakeview	1.4	35
13	Medford	1.8	46
17	Roseburg	3.8	96
21	Three Lynx	8.0	203
18	Toketee Falls	5.4	138
12	Wickiup Reservoir Dam	1.7	44

Central Oregon

Precipitation totals for March
Days	Place	Inches	Millimetres
6	Bend	0.7	18
15	Hood River	3.2	81
7	Madras	0.7	18
10	The Dalles	1.3	32

Eastern Oregon

Total precipitation during March
Days	Place	Inches	Millimetres
12	Heppner	1.4	35
10	La Grande	1.7	44
8	Lake Owyhee Dam	0.8	20
8	Ontario	1.0	25
12	Pendleton	1.3	34
11	Seneca	1.2	31
12	Summer Lake	1.2	30