Temperature
Cool by day, cold at night.
Cool days and plenty of sun. Some snow or mixed precipitation is possible.

Cool by day, cold at night.
Some snow or mixed precipitation is possible this month.
Plenty of sun this month.
In April, afternoons feel about 51° and nights feel near 29°.
Partly cloudy skies this month.
Calm winds are typical in April.
April late afternoons are around 59°F, easing to about 52°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 44 | 20 | 0.9 | 5 | 8.5 | 61 |
| Feb | 47 | 21 | 1.0 | 6 | 9.3 | 59 |
| Mar | 56 | 28 | 1.9 | 8 | 10.5 | 54 |
| Apr | 64 | 35 | 2.6 | 10 | 11.0 | 53 |
| May | 71 | 44 | 3.4 | 13 | 12.1 | 57 |
| Jun | 83 | 54 | 1.9 | 9 | 12.9 | 52 |
| Jul | 89 | 60 | 1.5 | 8 | 13.0 | 50 |
| Aug | 86 | 59 | 1.5 | 7 | 12.4 | 51 |
| Sep | 80 | 51 | 1.4 | 6 | 11.1 | 50 |
| Oct | 67 | 40 | 1.5 | 6 | 9.7 | 53 |
| Nov | 55 | 29 | 1.0 | 5 | 8.6 | 56 |
| Dec | 45 | 21 | 0.9 | 5 | 8.1 | 59 |
Similar climates
Want a side-by-side climate view? Compare Arvada with Alturas.
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: Jul 31, 2026
Data & methodology