SeasonMapLos Angeles vs Portland: which is better, month by month
Los Angeles beats Portland in 8 of 12 months — its lead peaks in December (81 vs 45) — while Portland wins June to September.
Each place is scored under the lens that suits its type. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.
Los Angeles vs Portland — all 12 months
| Month | Los Angeles | Portland | Winner | Gap |
|---|---|---|---|---|
| January | 80Anice, rainy | 49Fcold, soaked, clean air | Los Angeles | 31 |
| February | 83Anice, rainy | 55Dcold, rainy, clean air | Los Angeles | 28 |
| March | 87Anice, a little rain | 65Ccool, rainy, clean air | Los Angeles | 22 |
| April | 96Snice, dry | 76Bcool, rainy, clean air | Los Angeles | 20 |
| May | 98Swarm, dry | 86Anice, a little rain, clean air | Los Angeles | 12 |
| June | 92Shot, dry | 96Swarm, a little rain, clean air | Portland | 4 |
| July | 84Ahot, dry | 92Swarm, dry, clean air | Portland | 8 |
| August | 83Ahot, dry | 89Awarm, dry, clean air | Portland | 6 |
| September | 86Ahot, dry | 94Swarm, a little rain, clean air | Portland | 8 |
| October | 89Awarm, dry | 72Bnice, rainy, clean air | Los Angeles | 17 |
| November | 91Snice, a little rain | 57Dcool, soaked, clean air | Los Angeles | 34 |
| December | 81Anice, a little rain | 45Fcold, soaked, clean air | Los Angeles | 36 |
A month is a tie when the two are within 3 points. The widest gap is December (81 vs 45). Tap a month for that month's temperature, rain, humidity and air quality side by side.