Keizer, OR Weather & Climate Normals
What a normal year in Keizer actually looks like
On the 30-year record NOAA keeps for Keizer, OR, the comfort score comes out to 56/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 5 months a year land in the 55–75°F range this site treats as mild.
How much Keizer's weather actually swings
Average temperatures in Keizer run from 41°F in Dec up to 69°F in Jul, a 28°F seasonal swing, a middling gap by national standards.
Keizer, month by month
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 48°F | 36°F | 6.08in |
| Feb | 52°F | 36°F | 4.54in |
| Mar | 57°F | 38°F | 4.35in |
| Apr | 62°F | 41°F | 3.12in |
| May | 69°F | 46°F | 2.25in |
| Jun | 75°F | 51°F | 1.25in |
| Jul | 84°F | 55°F | 0.25in |
| Aug | 84°F | 55°F | 0.39in |
| Sep | 78°F | 51°F | 1.46in |
| Oct | 65°F | 44°F | 3.47in |
| Nov | 54°F | 39°F | 5.95in |
| Dec | 47°F | 35°F | 6.97in |
If you're timing a visit, May, Jun, Jul, Aug, and Sep are Keizer's mildest stretch; if you're moving there, you should plan around Dec's cold instead.
How wet Keizer actually gets
Keizer averages 40.08in of precipitation a year across roughly 148 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
Keizer against the rest of the country
Out of 4876 cities scored here, Keizer comes in at 748; within OR alone it ranks 23 of 80. Population is about 39,152.
Checking the actual forecast
These figures come from Salem Mcnary Fld, OR US, the NOAA station 6.9 miles from Keizer, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is