Climate
Beaverton weather by month
Average highs, lows, rain and snow for every month, from 30 years of weather records.
Average temperatures
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Best time to visit: July, August, September, when highs are mild and rain is lightest.
Month by month
| Month | High | Low | Rain | Wet days |
|---|---|---|---|---|
| January | 50°F | 40°F | 5.5 in | 20 |
| February | 54°F | 40°F | 4.3 in | 18 |
| March | 58°F | 42°F | 4.1 in | 20 |
| April | 63°F | 45°F | 3.0 in | 17 |
| May | 70°F | 50°F | 2.2 in | 13 |
| June | 73°F | 53°F | 1.7 in | 10 |
| July | 81°F | 57°F | 0.50 in | 4 |
| August | 82°F | 57°F | 0.50 in | 3 |
| September | 76°F | 53°F | 1.4 in | 9 |
| October | 65°F | 47°F | 3.9 in | 17 |
| November | 55°F | 43°F | 5.9 in | 19 |
| December | 49°F | 40°F | 6.2 in | 18 |
NOAA U.S. Climate Normals 1991–2020, Nature Park-Beaverton, Or Us (1.8 mi away, 185 ft). Wet days: days with at least 0.01 in of precipitation.
Questions
What is the hottest month in Beaverton?
August, with an average high of 82°F and low of 57°F.
What is the coldest month in Beaverton?
December, with an average low of 40°F and high of 49°F.
When does it rain most in Beaverton?
December is the wettest month, averaging 6.2 in of precipitation; the year totals about 39.2 inches.
What is the best time to visit Beaverton?
For mild weather (highs between 65°F and 85°F) with the least rain, July, August, September.
Where do these numbers come from?
NOAA’s 1991–2020 U.S. Climate Normals for the Nature Park-Beaverton weather station, 1.8 miles from downtown: 30-year averages, not a forecast.