Weather & Climate
Forest Grove, Oregon, United States
Overview
Available climate summaries for Forest Grove. Origins and reference periods are unverified; stored values may include AI estimates. Treat these as estimates until independently verified.
Key Metrics
Annual Avg
10°C
Summer Avg
16.5°C
Winter Avg
3.9°C
Record High
39.3°C
Record Low
-12.2°C
Annual Precipitation
1492.8 mm
Avg Humidity
85%
Summer Humidity
77%
Winter Humidity
93%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 15.4° | 4° | -11.8° | 222.9 | 94% | 37 | 28.7 |
| Feb | 16.3° | 4.3° | -8.8° | 144.2 | 91% | 58 | 30.2 |
| Mar | 21° | 6.3° | -4.3° | 178.6 | 89% | 93 | 27 |
| Apr | 29.3° | 8.3° | -2.6° | 116.4 | 86% | 129 | 32 |
| May | 32.8° | 11.8° | -0.3° | 73.2 | 83% | 169 | 29.8 |
| Jun | 34.3° | 14.3° | 4.1° | 49.5 | 81% | 180 | 19 |
| Jul | 38.7° | 17.4° | 7.4° | 11.5 | 76% | 212 | 17.1 |
| Aug | 39.3° | 17.9° | 7.3° | 19.2 | 74% | 180 | 26.2 |
| Sep | 36.5° | 15.4° | 1.6° | 57.6 | 76% | 129 | 25.5 |
| Oct | 29.1° | 10.6° | -4.1° | 138.6 | 84% | 80 | 29.2 |
| Nov | 19.5° | 6.3° | -6.9° | 225 | 91% | 42 | 31.2 |
| Dec | 14.9° | 3.5° | -12.2° | 256.1 | 94% | 31 | 37.8 |
Data sources
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-03-22.