Great Falls vs Kalispell: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 234 km apart · long-term climate normals (NASA POWER, 2001–2020)
Great Falls is the sunnier overall: about 2,659 hours of sunshine a year to Kalispell's 2,199. Great Falls has the higher Sunshine Score in 6 of 12 months; the other 6 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Great Falls | Kalispell | |
|---|---|---|
| Sunshine hours / year | 2,659 | 2,199 |
| Sunniest month | July (89/100) | July (86/100) |
| Nov–Feb average score | 0/100 | 0/100 |
| Jun–Aug average score | 86/100 | 82/100 |
| Rain / year | 473 mm | 775 mm |
| Peak midday UV | 8 (very high) | 7 (high) |
Great Falls vs Kalispell month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Great Falls | Kalispell | Great Falls | Kalispell | Great Falls | Kalispell | |
| January | 0 | 0 | 0° | -1° | 24 | 79 |
| February | 0 | 0 | 1° | -1° | 25 | 64 |
| March | 0 | 0 | 7° | 4° | 28 | 75 |
| April | 28 | 13 | 12° | 10° | 54 | 65 |
| May | 68 | 59 | 18° | 17° | 69 | 71 |
| June | 80 | 75 | 23° | 21° | 80 | 92 |
| July | 89 | 86 | 30° | 28° | 32 | 29 |
| August | 88 | 86 | 28° | 28° | 35 | 31 |
| September | 87 | 84 | 21° | 22° | 41 | 44 |
| October | 37 | 27 | 13° | 12° | 36 | 65 |
| November | 0 | 0 | 5° | 4° | 25 | 81 |
| December | 0 | 0 | 0° | -2° | 24 | 79 |
The sunnier month by month: Jan even · Feb even · Mar even · Apr Great Falls · May Great Falls · Jun Great Falls · Jul Great Falls · Aug even · Sep Great Falls · Oct Great Falls · Nov even · Dec even.
When to pick which
- November–February: too close to call — Great Falls averages 0/100, Kalispell 0/100. Great Falls is the warmer, around 2°C daytime highs vs 0°C. See the winter sun ranking.
- March–May: Great Falls (average score 32/100 vs 24). Great Falls is the warmer, around 12°C daytime highs vs 10°C.
- June–August: Great Falls (average score 86/100 vs 82). Daytime highs are similar (27°C vs 26°C).
- September–October: Great Falls (average score 62/100 vs 56). Daytime highs are similar (17°C vs 17°C).
Full month-by-month guides: Great Falls weather by month · Kalispell weather by month · Best time to visit United States.
More comparisons: Great Falls vs Billings · Great Falls vs Missoula · Great Falls vs Bozeman · Kalispell vs Calgary · Kalispell vs Spokane · Kalispell vs Missoula · all head-to-heads