Umatilla, OR Weather & Climate Normals
Umatilla's real weather, in one number
Umatilla, OR scores 50/100 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.
Umatilla's hottest and coldest months
Umatilla's hottest month is Jul, averaging 75°F; its coldest is Jan, averaging 36°F, a 38.9°F swing across the year, a middling gap by national standards.
Umatilla's weather across the year
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 41°F | 30°F | 0.88in |
| Feb | 46°F | 32°F | 0.7in |
| Mar | 56°F | 35°F | 0.76in |
| Apr | 63°F | 42°F | 0.7in |
| May | 72°F | 48°F | 0.75in |
| Jun | 79°F | 54°F | 0.45in |
| Jul | 89°F | 61°F | 0.19in |
| Aug | 88°F | 61°F | 0.25in |
| Sep | 78°F | 53°F | 0.4in |
| Oct | 64°F | 44°F | 0.74in |
| Nov | 51°F | 35°F | 0.87in |
| Dec | 41°F | 31°F | 1.22in |
May, Jun, Jul, Aug, and Sep are the best time to see Umatilla at its mildest; the rest of the year, plan around Jan's cold.
Rain and snow in Umatilla
Over a typical year, Umatilla sees about 7.91in of precipitation a year across roughly 95 days with measurable rain or snow. That station has no snowfall reading, so none is shown rather than assumed.
Where Umatilla ranks
Umatilla ranks 1887 of 4876 US cities in this dataset for comfort score, and 64 of 80 within OR. About 7,899 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Mcnary Dam #2, OR US, 2.0 miles from Umatilla, 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