Climateby Month

Oregon climate by month

6 cities · NOAA 1991-2020 normals

January highs across Oregon range from 43°F in Bend to 49°F in Cannon Beach; July highs from 67°F in Cannon Beach to 84°F in Eugene. The most common best months across these cities are June, July, August.

Oregon weather month by month

Average of the 6 Oregon cities on this site, computed from NOAA's unrounded values (so it can differ by a degree from averaging the rounded city figures); individual cities differ, sometimes a lot.

30°40°50°60°70°80° January: normal high 47°F (8°C), low 34°F (1°C) February: normal high 50°F (10°C), low 34°F (1°C) March: normal high 55°F (13°C), low 36°F (2°C) April: normal high 60°F (16°C), low 39°F (4°C) May: normal high 67°F (19°C), low 45°F (7°C) June: normal high 72°F (22°C), low 49°F (9°C) July: normal high 80°F (27°C), low 54°F (12°C) 80° 54° August: normal high 80°F (27°C), low 53°F (12°C) September: normal high 75°F (24°C), low 49°F (9°C) October: normal high 63°F (17°C), low 42°F (6°C) November: normal high 52°F (11°C), low 37°F (3°C) December: normal high 46°F (8°C), low 33°F (1°C) 46° 33° JFMAMJJASOND
MonthHighLowWet daysSnow
January47°F34°F171.9 in
February50°F34°F141.9 in
March55°F36°F160.3 in
April60°F39°F150.1 in
May67°F45°F110.0 in
June72°F49°F80.0 in
July80°F54°F30.0 in
August80°F53°F40.0 in
September75°F49°F60.0 in
October63°F42°F120.03 in
November52°F37°F170.4 in
December46°F33°F181.6 in

Regional differences

Warmest and coolest Oregon city each month

MonthWarmestCoolestBest month for
January Cannon Beach 49°F Bend 43°F –
February Salem 52°F Bend 46°F –
March Salem 57°F Bend 52°F –
April Salem 62°F Cannon Beach 56°F –
May Salem 69°F Cannon Beach 61°F –
June Salem 75°F Cannon Beach 64°F 5 cities
July Eugene 84°F Cannon Beach 67°F 1 city
August Eugene 84°F Cannon Beach 69°F 1 city
September Eugene 78°F Cannon Beach 68°F –
October Eugene 65°F Cannon Beach 61°F –
November Cannon Beach 54°F Bend 49°F –
December Cannon Beach 49°F Bend 41°F –

By normal daily high. "Best month for": how many of the 6 cities have it among their best months by our comfort score.

Frost and humidity across Oregon

  • Earliest typical last frostPortland: Mar 13
  • Latest typical last frostBend: Jun 6
  • Most muggy daysHillsboro: 0 a year
  • Fewest muggy daysSalem: 0 a year

All Oregon cities

CityJan highJul highWet days/yrSnow/yrBest months
Bend 43°F84°F 6321.6 in Jun
Cannon Beach 49°F67°F 1811.4 in Jul, Aug
Eugene 48°F84°F 1462.7 in Jun
Hillsboro 45°F81°F 1525.2 in Jun
Portland 47°F80°F 1564.2 in Jun
Salem 48°F84°F 1482.9 in Jun

Also covered: Gresham (see Vancouver). These cities use the same weather stations as the city named.

Frost dates for Oregon