Monmouth, OR Weather & Climate Normals
Monmouth's real weather, in one number
Monmouth, OR scores 56/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Monmouth's hottest and coldest months
Monmouth's hottest month is Aug, averaging 68°F; its coldest is Dec, averaging 40°F, a 27.4°F swing across the year, a middling gap by national standards.
Monmouth's weather across the year
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 47°F | 35°F | 7.48in |
| Feb | 51°F | 36°F | 5.56in |
| Mar | 56°F | 38°F | 5.08in |
| Apr | 61°F | 40°F | 3.71in |
| May | 68°F | 45°F | 2.36in |
| Jun | 73°F | 49°F | 1.49in |
| Jul | 83°F | 52°F | 0.31in |
| Aug | 83°F | 52°F | 0.47in |
| Sep | 78°F | 49°F | 1.6in |
| Oct | 65°F | 44°F | 3.8in |
| Nov | 52°F | 38°F | 7.18in |
| Dec | 46°F | 35°F | 8.74in |
May, Jun, Jul, Aug, and Sep are the best time to see Monmouth at its mildest; the rest of the year, plan around Dec's cold.
Rain and snow in Monmouth
Over a typical year, Monmouth sees about 47.78in of precipitation a year across roughly 0 days with measurable rain or snow. That station has no snowfall reading, so none is shown rather than assumed.
Where Monmouth ranks
Monmouth ranks 788 of 4876 US cities in this dataset for comfort score, and 30 of 80 within OR. About 11,651 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Dallas 2 Ne, OR US, 7.2 miles from Monmouth, not a prediction for any specific day.
More on how this is worked out
Why some cities show no snow or rain figure · How the comfort score is calculated