Portland vs Bangor: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 175 km apart · long-term climate normals (NASA POWER, 2001–2020)
Portland and Bangor are virtually tied for annual sunshine — about 2,150 vs 2,079 hours a year. Bangor has the higher Sunshine Score in 5 of 12 months, Portland in 1 (6 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Portland | Bangor | |
|---|---|---|
| Sunshine hours / year | 2,150 | 2,079 |
| Sunniest month | July (74/100) | July (74/100) |
| Nov–Feb average score | 2/100 | 0/100 |
| Jun–Aug average score | 66/100 | 72/100 |
| Rain / year | 1,363 mm | 1,212 mm |
| Peak midday UV | 7 (high) | 6 (high) |
Portland vs Bangor month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Portland | Bangor | Portland | Bangor | Portland | Bangor | |
| January | 0 | 0 | 1° | -4° | 103 | 74 |
| February | 0 | 0 | 1° | -2° | 103 | 73 |
| March | 0 | 0 | 4° | 3° | 110 | 83 |
| April | 0 | 18 | 8° | 11° | 121 | 103 |
| May | 24 | 55 | 12° | 17° | 101 | 99 |
| June | 51 | 69 | 17° | 22° | 127 | 120 |
| July | 74 | 74 | 21° | 25° | 96 | 90 |
| August | 74 | 73 | 21° | 25° | 94 | 100 |
| September | 61 | 74 | 18° | 22° | 97 | 93 |
| October | 27 | 32 | 13° | 14° | 145 | 142 |
| November | 6 | 0 | 9° | 7° | 125 | 117 |
| December | 0 | 0 | 4° | 0° | 141 | 118 |
The sunnier month by month: Jan even · Feb even · Mar even · Apr Bangor · May Bangor · Jun Bangor · Jul even · Aug even · Sep Bangor · Oct Bangor · Nov Portland · Dec even.
When to pick which
- November–February: too close to call — Portland averages 2/100, Bangor 0/100. Portland is the warmer, around 4°C daytime highs vs 0°C. See the winter sun ranking.
- March–May: Bangor (average score 24/100 vs 8). Bangor is the warmer, around 10°C daytime highs vs 8°C.
- June–August: Bangor (average score 72/100 vs 66). Bangor is the warmer, around 24°C daytime highs vs 20°C.
- September–October: Bangor (average score 53/100 vs 44). Bangor is the warmer, around 18°C daytime highs vs 16°C.
Full month-by-month guides: Portland weather by month · Bangor weather by month · Best time to visit United States.
More comparisons: Portland vs Boston · Portland vs Manchester · Bangor vs Manchester · Bangor vs Fredericton · all head-to-heads