Allentown/Bethlehem vs Harrisburg: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 123 km apart · long-term climate normals (NASA POWER, 2001–2020)
Allentown/Bethlehem and Harrisburg are virtually tied for annual sunshine — about 2,074 vs 2,080 hours a year. Harrisburg has the higher Sunshine Score in 5 of 12 months; the other 7 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Allentown/Bethlehem | Harrisburg | |
|---|---|---|
| Sunshine hours / year | 2,074 | 2,080 |
| Sunniest month | May (72/100) | May (72/100) |
| Nov–Feb average score | 5/100 | 6/100 |
| Jun–Aug average score | 68/100 | 71/100 |
| Rain / year | 1,234 mm | 1,166 mm |
| Peak midday UV | 7 (high) | 7 (high) |
Allentown/Bethlehem vs Harrisburg month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Allentown/Bethlehem | Harrisburg | Allentown/Bethlehem | Harrisburg | Allentown/Bethlehem | Harrisburg | |
| January | 0 | 0 | 2° | 3° | 75 | 71 |
| February | 0 | 0 | 3° | 4° | 74 | 71 |
| March | 6 | 13 | 9° | 10° | 91 | 84 |
| April | 49 | 55 | 16° | 17° | 97 | 96 |
| May | 72 | 72 | 22° | 23° | 104 | 105 |
| June | 68 | 70 | 27° | 28° | 124 | 116 |
| July | 68 | 70 | 30° | 31° | 126 | 115 |
| August | 69 | 72 | 29° | 30° | 118 | 105 |
| September | 69 | 69 | 26° | 26° | 119 | 119 |
| October | 58 | 65 | 18° | 19° | 116 | 111 |
| November | 19 | 25 | 11° | 12° | 86 | 79 |
| December | 0 | 0 | 5° | 5° | 104 | 94 |
The sunnier month by month: Jan even · Feb even · Mar Harrisburg · Apr Harrisburg · May even · Jun even · Jul even · Aug Harrisburg · Sep even · Oct Harrisburg · Nov Harrisburg · Dec even.
When to pick which
- November–February: too close to call — Allentown/Bethlehem averages 5/100, Harrisburg 6/100. Daytime highs are similar (5°C vs 6°C). See the winter sun ranking.
- March–May: Harrisburg (average score 47/100 vs 42). Daytime highs are similar (16°C vs 17°C).
- June–August: Harrisburg (average score 71/100 vs 68). Daytime highs are similar (29°C vs 30°C).
- September–October: Harrisburg (average score 67/100 vs 64). Daytime highs are similar (22°C vs 23°C).
Full month-by-month guides: Allentown/Bethlehem weather by month · Harrisburg weather by month · Best time to visit United States.
More comparisons: Allentown/Bethlehem vs Philadelphia · Allentown/Bethlehem vs Trenton · Allentown/Bethlehem vs Wilkes-Barre/Scranton · Harrisburg vs Philadelphia · Harrisburg vs Washington · Harrisburg vs Baltimore · all head-to-heads