Whitehorse vs Ketchikan: which is sunnier?
🇨🇦 Canada vs 🇺🇸 United States · 627 km apart · long-term climate normals (NASA POWER, 2001–2020)
Whitehorse is the sunnier overall: about 1,919 hours of sunshine a year to Ketchikan's 1,127. Ketchikan has the higher Sunshine Score in 4 of 12 months, Whitehorse in 3 (5 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.


At a glance
| Whitehorse | Ketchikan | |
|---|---|---|
| Sunshine hours / year | 1,919 | 1,127 |
| Sunniest month | July (64/100) | July (48/100) |
| Nov–Feb average score | 0/100 | 0/100 |
| Jun–Aug average score | 58/100 | 45/100 |
| Rain / year | 581 mm | 2,754 mm |
| Peak midday UV | 4 (moderate) | 4 (moderate) |
Whitehorse vs Ketchikan month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Whitehorse | Ketchikan | Whitehorse | Ketchikan | Whitehorse | Ketchikan | |
| January | 0 | 0 | -10° | 3° | 42 | 302 |
| February | 0 | 0 | -8° | 3° | 27 | 186 |
| March | 0 | 0 | -5° | 5° | 31 | 208 |
| April | 0 | 5 | 2° | 9° | 28 | 184 |
| May | 21 | 24 | 11° | 13° | 39 | 147 |
| June | 51 | 39 | 16° | 16° | 70 | 147 |
| July | 64 | 48 | 18° | 18° | 73 | 168 |
| August | 58 | 48 | 17° | 18° | 70 | 219 |
| September | 13 | 33 | 10° | 15° | 61 | 279 |
| October | 0 | 10 | 3° | 10° | 57 | 325 |
| November | 0 | 0 | -7° | 5° | 42 | 301 |
| December | 0 | 0 | -10° | 3° | 41 | 288 |
The sunnier month by month: Jan even · Feb even · Mar even · Apr Ketchikan · May Ketchikan · Jun Whitehorse · Jul Whitehorse · Aug Whitehorse · Sep Ketchikan · Oct Ketchikan · Nov even · Dec even.
When to pick which
- November–February: too close to call — Whitehorse averages 0/100, Ketchikan 0/100. Ketchikan is the warmer, around 4°C daytime highs vs -9°C. See the winter sun ranking.
- March–May: Ketchikan (average score 10/100 vs 7). Ketchikan is the warmer, around 9°C daytime highs vs 3°C.
- June–August: Whitehorse (average score 58/100 vs 45). Daytime highs are similar (17°C vs 17°C).
- September–October: Ketchikan (average score 22/100 vs 7). Ketchikan is the warmer, around 13°C daytime highs vs 7°C.
Full month-by-month guides: Whitehorse weather by month · Ketchikan weather by month · Best time to visit Canada · Best time to visit United States.
More comparisons: Whitehorse vs Fairbanks · Whitehorse vs Juneau · Ketchikan vs Juneau · Ketchikan vs Fort Saint John · all head-to-heads