Mountlake Terrace, WA Weather & Climate Normals
What a normal year in Mountlake Terrace actually looks like
On the 30-year record NOAA keeps for Mountlake Terrace, WA, 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 Mountlake Terrace's weather actually swings
Average temperatures in Mountlake Terrace run from 42°F in Dec up to 67°F in Aug, a 25.3°F seasonal swing, a middling gap by national standards.
Mountlake Terrace, month by month
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 47°F | 37°F | 5.14in | 0.9in |
| Feb | 50°F | 37°F | 3.54in | 1in |
| Mar | 54°F | 39°F | 3.86in | 0in |
| Apr | 59°F | 43°F | 2.98in | 0in |
| May | 65°F | 48°F | 2.16in | 0in |
| Jun | 70°F | 53°F | 1.57in | 0in |
| Jul | 77°F | 57°F | 0.78in | 0in |
| Aug | 77°F | 57°F | 1in | 0in |
| Sep | 71°F | 53°F | 1.74in | 0in |
| Oct | 61°F | 47°F | 3.65in | 0in |
| Nov | 52°F | 41°F | 5.85in | 0.2in |
| Dec | 47°F | 37°F | 5.55in | 1.7in |
If you're timing a visit, May, Jun, Jul, Aug, and Sep are Mountlake Terrace's mildest stretch; if you're moving there, you should plan around Dec's cold instead.
How wet Mountlake Terrace actually gets
Over a typical year, Mountlake Terrace sees about 37.82in of precipitation a year across roughly 163 days with measurable rain or snow, with 3.8in of snow a year.
Mountlake Terrace against the rest of the country
Out of 4876 cities scored here, Mountlake Terrace comes in at 759; within WA alone it ranks 46 of 125. Population is about 25,198.
Checking the actual forecast
These figures come from Seattle Sand Pt Wsfo, WA US, the NOAA station 7.7 miles from Mountlake Terrace, 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