Denver weather by month & the best time to visit
🇺🇸 United States · major city break · semi-arid climate
The best time to visit Denver is September — its sunniest month (Sunshine Score 92/100), with June and August close behind. Denver averages about 3,169 hours of sunshine a year. Daytime highs around 26°C / 79°F and roughly 34 mm of rain in September.
Jump to: month-by-month table · nearby alternatives · embed this data
- Sun hours / year
- 3,169
- Sunniest month
- September
- Peak score
- 92/100
- Rain / year
- 415 mm
- Snow / year
- ≈1.1 m
- Midday UV at peak
- 10 (very high)
- Population
- 2.3M
- Elevation
- 1,633 m
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When is the best time to visit Denver?
For sunshine, the best time to visit Denver is September, then June and August. The dullest month is January (0/100, 14 mm of rain). The full month-by-month picture is in the table below.
How sunny is Denver?
Denver is one of the sunniest places on Earth: about 3,169 hours of sunshine a year. 92 Sunshine Score points separate September (92) from January (0), so the month you pick matters. It ranks #64 of 580 destinations in United States for annual sunshine, above the national median of 2,279 hours. The year's 415 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | 5° / 41°F | -7° / 19°F | 14 mm | 2 |
| February | 0 | 6° / 43°F | -7° / 19°F | 17 mm | 3 |
| March | 38 | 13° / 55°F | -3° / 27°F | 30 mm | 5 |
| April | 67 | 17° / 63°F | 1° / 34°F | 48 mm | 7 |
| May | 86 | 22° / 72°F | 6° / 43°F | 64 mm | 8 |
| June | 89 | 30° / 86°F | 13° / 55°F | 47 mm | 9 |
| July | 79 | 33° / 91°F | 17° / 63°F | 53 mm | 10 |
| August | 89 | 31° / 88°F | 15° / 59°F | 46 mm | 9 |
| September | 92 | 26° / 79°F | 10° / 50°F | 34 mm | 7 |
| October | 77 | 18° / 64°F | 2° / 36°F | 29 mm | 5 |
| November | 24 | 11° / 52°F | -3° / 27°F | 17 mm | 3 |
| December | 0 | 4° / 39°F | -7° / 19°F | 16 mm | 2 |
See Denver on the interactive sunshine globe →
Nearby places for sunshine
- Colorado Springs United States · 117 km · best in Jun · 3,289 h sun/yr
- Eagle United States · 193 km · best in Jun · 3,154 h sun/yr
- Aspen United States · 201 km · best in Jun · 3,154 h sun/yr
- Hayden United States · 227 km · best in Jun · 3,058 h sun/yr
- Montrose United States · 316 km · best in Jun · 3,242 h sun/yr
- Grand Junction United States · 341 km · best in May · 3,302 h sun/yr
Nearest destinations
- Cheyenne United States · 145 km · 2,982 h sun/yr · best in Sep
- Pueblo United States · 175 km · 3,288 h sun/yr · best in Oct
- Laramie United States · 182 km · 2,979 h sun/yr · best in Aug
Head-to-head
How Denver compares month by month: Denver vs Colorado Springs · Denver vs Rapid City · Denver vs Aspen · Denver vs Eagle · all comparisons
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