Grand Rapids vs Kalamazoo: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 72 km apart · long-term climate normals (NASA POWER, 2001–2020)
Grand Rapids and Kalamazoo are virtually tied for annual sunshine — about 2,024 vs 2,022 hours a year. Kalamazoo has the higher Sunshine Score in 3 of 12 months; the other 9 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.


At a glance
| Grand Rapids | Kalamazoo | |
|---|---|---|
| Sunshine hours / year | 2,024 | 2,022 |
| Sunniest month | July (76/100) | September (76/100) |
| Nov–Feb average score | 0/100 | 0/100 |
| Jun–Aug average score | 75/100 | 74/100 |
| Rain / year | 967 mm | 954 mm |
| Peak midday UV | 7 (high) | 7 (high) |
Grand Rapids vs Kalamazoo month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Grand Rapids | Kalamazoo | Grand Rapids | Kalamazoo | Grand Rapids | Kalamazoo | |
| January | 0 | 0 | -2° | -1° | 62 | 60 |
| February | 0 | 0 | 0° | 1° | 60 | 55 |
| March | 0 | 0 | 6° | 7° | 63 | 59 |
| April | 30 | 37 | 13° | 14° | 96 | 85 |
| May | 65 | 70 | 19° | 21° | 104 | 110 |
| June | 74 | 73 | 24° | 26° | 89 | 94 |
| July | 76 | 75 | 27° | 29° | 79 | 87 |
| August | 75 | 73 | 26° | 28° | 87 | 97 |
| September | 76 | 76 | 23° | 24° | 79 | 80 |
| October | 41 | 48 | 15° | 16° | 109 | 99 |
| November | 0 | 0 | 8° | 8° | 73 | 68 |
| December | 0 | 0 | 1° | 2° | 66 | 60 |
The sunnier month by month: Jan even · Feb even · Mar even · Apr Kalamazoo · May Kalamazoo · Jun even · Jul even · Aug even · Sep even · Oct Kalamazoo · Nov even · Dec even.
When to pick which
- November–February: too close to call — Grand Rapids averages 0/100, Kalamazoo 0/100. Daytime highs are similar (2°C vs 3°C). See the winter sun ranking.
- March–May: Kalamazoo (average score 36/100 vs 32). Daytime highs are similar (13°C vs 14°C).
- June–August: too close to call — Grand Rapids averages 75/100, Kalamazoo 74/100. Kalamazoo is the warmer, around 28°C daytime highs vs 26°C.
- September–October: Kalamazoo (average score 62/100 vs 59). Daytime highs are similar (19°C vs 20°C).
Full month-by-month guides: Grand Rapids weather by month · Kalamazoo weather by month · Best time to visit United States.
More comparisons: Grand Rapids vs Lansing · Grand Rapids vs Flint · Grand Rapids vs Traverse City · Kalamazoo vs Fort Wayne · Kalamazoo vs Lansing · Kalamazoo vs South Bend · all head-to-heads