Temperature
Cold by day, freezing at night.
Cold conditions during longer outdoor plans and some snow or mixed precipitation are the main limitations.

Cold by day, freezing at night.
Some snow or mixed precipitation is possible this month.
Plenty of sun this month.
Humidity is rarely noticeable in the cool air.
In July, afternoons feel about 11° and nights feel near 6°.
Partly cloudy skies this month.
Calm winds are typical in July.
July late afternoons are around 18°F, easing to about 14°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 61 | 42 | 1.8 | 11 | 13.6 | 62 |
| Feb | 61 | 42 | 1.2 | 9 | 12.9 | 59 |
| Mar | 58 | 38 | 1.0 | 6 | 11.8 | 58 |
| Apr | 49 | 30 | 1.6 | 6 | 10.7 | 60 |
| May | 37 | 21 | 3.4 | 9 | 9.5 | 63 |
| Jun | 28 | 17 | 6.5 | 11 | 8.2 | 61 |
| Jul | 27 | 16 | 4.0 | 9 | 8.8 | 56 |
| Aug | 29 | 18 | 4.6 | 10 | 9.6 | 57 |
| Sep | 33 | 19 | 3.0 | 9 | 10.6 | 66 |
| Oct | 39 | 23 | 1.8 | 9 | 12.3 | 77 |
| Nov | 46 | 28 | 1.4 | 9 | 13.1 | 78 |
| Dec | 55 | 35 | 1.5 | 11 | 13.8 | 68 |
Similar climates
Want a side-by-side climate view? Compare Portillo with Breckenridge.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 7, 2026
Data & methodology