Billings vs Great Falls: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 285 km apart · long-term climate normals (NASA POWER, 2001–2020)
Billings and Great Falls are virtually tied for annual sunshine — about 2,701 vs 2,659 hours a year. Billings has the higher Sunshine Score in 5 of 12 months; the other 7 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Billings | Great Falls | |
|---|---|---|
| Sunshine hours / year | 2,701 | 2,659 |
| Sunniest month | July (89/100) | July (89/100) |
| Nov–Feb average score | 0/100 | 0/100 |
| Jun–Aug average score | 87/100 | 86/100 |
| Rain / year | 430 mm | 473 mm |
| Peak midday UV | 8 (very high) | 8 (very high) |
Billings vs Great Falls month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Billings | Great Falls | Billings | Great Falls | Billings | Great Falls | |
| January | 0 | 0 | 2° | 0° | 16 | 24 |
| February | 0 | 0 | 3° | 1° | 19 | 25 |
| March | 8 | 0 | 9° | 7° | 25 | 28 |
| April | 43 | 28 | 14° | 12° | 47 | 54 |
| May | 81 | 68 | 20° | 18° | 78 | 69 |
| June | 83 | 80 | 26° | 23° | 65 | 80 |
| July | 89 | 89 | 32° | 30° | 32 | 32 |
| August | 89 | 88 | 30° | 28° | 33 | 35 |
| September | 88 | 87 | 24° | 21° | 37 | 41 |
| October | 51 | 37 | 15° | 13° | 41 | 36 |
| November | 0 | 0 | 7° | 5° | 19 | 25 |
| December | 0 | 0 | 2° | 0° | 18 | 24 |
The sunnier month by month: Jan even · Feb even · Mar Billings · Apr Billings · May Billings · Jun Billings · Jul even · Aug even · Sep even · Oct Billings · Nov even · Dec even.
When to pick which
- November–February: too close to call — Billings averages 0/100, Great Falls 0/100. Billings is the warmer, around 4°C daytime highs vs 2°C. See the winter sun ranking.
- March–May: Billings (average score 44/100 vs 32). Billings is the warmer, around 14°C daytime highs vs 12°C.
- June–August: too close to call — Billings averages 87/100, Great Falls 86/100. Billings is the warmer, around 29°C daytime highs vs 27°C.
- September–October: Billings (average score 70/100 vs 62). Billings is the warmer, around 20°C daytime highs vs 17°C.
Full month-by-month guides: Billings weather by month · Great Falls weather by month · Best time to visit United States.
More comparisons: Billings vs Rapid City · Billings vs Bozeman · Billings vs Jackson · Great Falls vs Missoula · Great Falls vs Bozeman · Great Falls vs Kalispell · all head-to-heads