Grand Junction vs Aspen: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 144 km apart · long-term climate normals (NASA POWER, 2001–2020)
Grand Junction is the sunnier overall: about 3,302 hours of sunshine a year to Aspen's 3,154. Grand Junction has the higher Sunshine Score in 5 of 12 months, Aspen in 3 (4 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Grand Junction | Aspen | |
|---|---|---|
| Sunshine hours / year | 3,302 | 3,154 |
| Sunniest month | May (93/100) | June (94/100) |
| Nov–Feb average score | 8/100 | 0/100 |
| Jun–Aug average score | 75/100 | 91/100 |
| Rain / year | 377 mm | 527 mm |
| Peak midday UV | 10 (very high) | 9 (very high) |
Grand Junction vs Aspen month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Grand Junction | Aspen | Grand Junction | Aspen | Grand Junction | Aspen | |
| January | 0 | 0 | 5° | -1° | 29 | 48 |
| February | 0 | 0 | 7° | 0° | 29 | 45 |
| March | 39 | 0 | 13° | 4° | 32 | 45 |
| April | 85 | 7 | 19° | 9° | 33 | 51 |
| May | 93 | 60 | 25° | 16° | 31 | 43 |
| June | 86 | 94 | 33° | 24° | 15 | 21 |
| July | 56 | 89 | 36° | 27° | 33 | 47 |
| August | 83 | 90 | 33° | 25° | 34 | 45 |
| September | 91 | 89 | 28° | 21° | 40 | 46 |
| October | 92 | 30 | 20° | 12° | 38 | 43 |
| November | 31 | 0 | 12° | 5° | 28 | 42 |
| December | 0 | 0 | 5° | -1° | 35 | 51 |
The sunnier month by month: Jan even · Feb even · Mar Grand Junction · Apr Grand Junction · May Grand Junction · Jun Aspen · Jul Aspen · Aug Aspen · Sep even · Oct Grand Junction · Nov Grand Junction · Dec even.
When to pick which
- November–February: Grand Junction (average score 8/100 vs 0). Grand Junction is the warmer, around 7°C daytime highs vs 1°C. See the winter sun ranking.
- March–May: Grand Junction (average score 72/100 vs 22). Grand Junction is the warmer, around 19°C daytime highs vs 10°C.
- June–August: Aspen (average score 91/100 vs 75). Grand Junction is the warmer, around 34°C daytime highs vs 25°C.
- September–October: Grand Junction (average score 92/100 vs 60). Grand Junction is the warmer, around 24°C daytime highs vs 17°C.
Full month-by-month guides: Grand Junction weather by month · Aspen weather by month · Best time to visit United States.
More comparisons: Grand Junction vs Provo · Grand Junction vs Montrose · Grand Junction vs Eagle · Aspen vs Denver · Aspen vs Colorado Springs · Aspen vs Montrose · all head-to-heads