Madison vs Green Bay: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 178 km apart · long-term climate normals (NASA POWER, 2001–2020)
Madison and Green Bay are virtually tied for annual sunshine — about 2,236 vs 2,244 hours a year. Month by month it's balanced: each has the higher Sunshine Score in 3 months, with 6 within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
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At a glance
| Madison | Green Bay | |
|---|---|---|
| Sunshine hours / year | 2,236 | 2,244 |
| Sunniest month | September (75/100) | July (76/100) |
| Nov–Feb average score | 0/100 | 0/100 |
| Jun–Aug average score | 71/100 | 74/100 |
| Rain / year | 970 mm | 878 mm |
| Peak midday UV | 7 (high) | 7 (high) |
Madison vs Green Bay month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Madison | Green Bay | Madison | Green Bay | Madison | Green Bay | |
| January | 0 | 0 | -3° | -4° | 36 | 34 |
| February | 0 | 0 | -1° | -3° | 41 | 35 |
| March | 0 | 0 | 6° | 4° | 59 | 54 |
| April | 37 | 19 | 14° | 11° | 98 | 86 |
| May | 72 | 55 | 20° | 17° | 109 | 102 |
| June | 67 | 71 | 25° | 23° | 134 | 113 |
| July | 73 | 76 | 28° | 27° | 102 | 89 |
| August | 72 | 76 | 27° | 26° | 111 | 89 |
| September | 75 | 76 | 23° | 22° | 93 | 85 |
| October | 45 | 38 | 15° | 14° | 80 | 87 |
| November | 0 | 0 | 7° | 6° | 56 | 53 |
| December | 0 | 0 | -1° | -1° | 51 | 51 |
The sunnier month by month: Jan even · Feb even · Mar even · Apr Madison · May Madison · Jun Green Bay · Jul Green Bay · Aug Green Bay · Sep even · Oct Madison · Nov even · Dec even.
When to pick which
- November–February: too close to call — Madison averages 0/100, Green Bay 0/100. Daytime highs are similar (1°C vs 0°C). See the winter sun ranking.
- March–May: Madison (average score 36/100 vs 25). Madison is the warmer, around 13°C daytime highs vs 11°C.
- June–August: Green Bay (average score 74/100 vs 71). Madison is the warmer, around 27°C daytime highs vs 25°C.
- September–October: Madison (average score 60/100 vs 57). Daytime highs are similar (19°C vs 18°C).
Full month-by-month guides: Madison weather by month · Green Bay weather by month · Best time to visit United States.
More comparisons: Madison vs Chicago · Madison vs Milwaukee · Madison vs Rochester · Green Bay vs Milwaukee · Green Bay vs Thunder Bay · Green Bay vs Appleton · all head-to-heads