Provo vs Grand Junction: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 299 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 Provo's 3,122. Grand Junction has the higher Sunshine Score in 5 of 12 months, Provo in 2 (5 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.


At a glance
| Provo | Grand Junction | |
|---|---|---|
| Sunshine hours / year | 3,122 | 3,302 |
| Sunniest month | June (94/100) | May (93/100) |
| Nov–Feb average score | 6/100 | 8/100 |
| Jun–Aug average score | 81/100 | 75/100 |
| Rain / year | 469 mm | 377 mm |
| Peak midday UV | 9 (very high) | 10 (very high) |
Provo vs Grand Junction month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Provo | Grand Junction | Provo | Grand Junction | Provo | Grand Junction | |
| January | 0 | 0 | 4° | 5° | 47 | 29 |
| February | 0 | 0 | 6° | 7° | 41 | 29 |
| March | 30 | 39 | 12° | 13° | 46 | 32 |
| April | 59 | 85 | 16° | 19° | 51 | 33 |
| May | 90 | 93 | 23° | 25° | 43 | 31 |
| June | 94 | 86 | 30° | 33° | 22 | 15 |
| July | 66 | 56 | 35° | 36° | 20 | 33 |
| August | 84 | 83 | 33° | 33° | 26 | 34 |
| September | 91 | 91 | 28° | 28° | 35 | 40 |
| October | 83 | 92 | 19° | 20° | 40 | 38 |
| November | 23 | 31 | 11° | 12° | 38 | 28 |
| December | 0 | 0 | 4° | 5° | 60 | 35 |
The sunnier month by month: Jan even · Feb even · Mar Grand Junction · Apr Grand Junction · May Grand Junction · Jun Provo · Jul Provo · Aug even · Sep even · Oct Grand Junction · Nov Grand Junction · Dec even.
When to pick which
- November–February: too close to call — Provo averages 6/100, Grand Junction 8/100. Daytime highs are similar (6°C vs 7°C). See the winter sun ranking.
- March–May: Grand Junction (average score 72/100 vs 60). Grand Junction is the warmer, around 19°C daytime highs vs 17°C.
- June–August: Provo (average score 81/100 vs 75). Daytime highs are similar (33°C vs 34°C).
- September–October: Grand Junction (average score 92/100 vs 87). Daytime highs are similar (24°C vs 24°C).
Full month-by-month guides: Provo weather by month · Grand Junction weather by month · Best time to visit United States.
More comparisons: Provo vs Salt Lake City · Provo vs Idaho Falls · Grand Junction vs Montrose · Grand Junction vs Aspen · Grand Junction vs Eagle · all head-to-heads