Average March Temperatures for Oregon

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

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

The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Oregon Coast

Average March temperatures
High °F	Low °F	Place	High °C	Low °C
53	39	Astoria	12	4
55	43	Brookings	13	6
57	43	Gold Beach	14	6
53	39	Honeyman State Park	12	4
53	39	Newport	12	4
55	42	North Bend	13	6
55	42	Port Orford	13	6
54	40	Seaside	12	4
55	37	Tillamook	13	3

Willamette Valley

Average daily temperatures in March
High °F	Low °F	Place	High °C	Low °C
56	37	Corvallis	13	3
57	37	Eugene	14	3
58	39	Lebanon	14	4
56	40	Portland	14	4
57	38	Salem	14	4

Cascade Mountains

March temperatures: daily averages
High °F	Low °F	Place	High °C	Low °C
36	20	Crater Lake Park	2	-7
52	38	Detroit Lake Dam	11	3
41	28	Government Camp	5	-2
60	37	Grants Pass	15	3
45	26	Howard Prairie Lake Dam	7	-3
52	27	Klamath Falls	11	-3
49	28	Lakeview	10	-2
53	33	McKenzie Bridge	12	1
59	37	Medford	15	3
60	38	Roseburg	16	4
51	35	Three Lynx	11	2
53	34	Toketee Falls	12	1
48	26	Wickiup Reservoir Dam	9	-4

Central Oregon

Average March temperatures
High °F	Low °F	Place	High °C	Low °C
52	28	Bend	11	-2
53	35	Hood River	12	1
53	26	Madras	12	-3
57	34	The Dalles	14	1

Eastern Oregon

Average March temperatures
High °F	Low °F	Place	High °C	Low °C
48	25	Hart Mountain Antelope Refuge	9	-4
55	34	Heppner	13	1
52	31	La Grande	11	-1
57	30	Lake Owyhee Dam	14	-1
52	27	Malheur National Wildlife Refuge	11	-3
56	32	Ontario	13	0
58	33	Pendleton	14	1
46	20	Seneca	8	-7
54	27	Summer Lake	12	-3

Average Temperatures for Oregon in March

Oregon Coast

Willamette Valley

Cascade Mountains

Central Oregon

Eastern Oregon

Reference

More Oregon Weather Information