Harrisburg weather by month & the best time to visit
🇺🇸 United States · small town · humid subtropical climate
The best time to visit Harrisburg is May — its sunniest month (Sunshine Score 72/100), with August and June close behind. Harrisburg averages about 2,080 hours of sunshine a year. Daytime highs around 23°C / 73°F and roughly 105 mm of rain in May.
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- Sun hours / year
- 2,080
- Sunniest month
- May
- Peak score
- 72/100
- Rain / year
- 1,166 mm
- Snow / year
- ≈1.3 m
- Midday UV at peak
- 7 (high)
- Population
- 50k
- Elevation
- 90 m

When is the best time to visit Harrisburg?
For sunshine, the best time to visit Harrisburg is May, then August and June. The dullest month is January (0/100, 71 mm of rain). The full month-by-month picture is in the table below.
How sunny is Harrisburg?
Harrisburg gets a moderate 2,080 hours of sunshine a year. 72 Sunshine Score points separate May (72) from January (0), so the month you pick matters. It ranks #368 of 580 destinations in United States for annual sunshine, below the national median of 2,279 hours. The year's 1,166 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | 3° / 37°F | -6° / 21°F | 71 mm | 1 |
| February | 0 | 4° / 39°F | -5° / 23°F | 71 mm | 2 |
| March | 13 | 10° / 50°F | -1° / 30°F | 84 mm | 3 |
| April | 55 | 17° / 63°F | 5° / 41°F | 96 mm | 5 |
| May | 72 | 23° / 73°F | 11° / 52°F | 105 mm | 6 |
| June | 70 | 28° / 82°F | 17° / 63°F | 116 mm | 7 |
| July | 70 | 31° / 88°F | 19° / 66°F | 115 mm | 7 |
| August | 72 | 30° / 86°F | 19° / 66°F | 105 mm | 6 |
| September | 69 | 26° / 79°F | 14° / 57°F | 119 mm | 5 |
| October | 65 | 19° / 66°F | 8° / 46°F | 111 mm | 3 |
| November | 25 | 12° / 54°F | 2° / 36°F | 79 mm | 2 |
| December | 0 | 5° / 41°F | -3° / 27°F | 94 mm | 1 |
See Harrisburg on the interactive sunshine globe →
Nearby places for sunshine
- Baltimore United States · 113 km · best in Oct · 2,241 h sun/yr
- Allentown/Bethlehem United States · 123 km · best in May · 2,074 h sun/yr
- Philadelphia United States · 134 km · best in May · 2,267 h sun/yr
- Washington United States · 151 km · best in Aug · 2,293 h sun/yr
- Wilkes-Barre/Scranton United States · 154 km · best in May · 1,919 h sun/yr
- Trenton United States · 166 km · best in May · 2,166 h sun/yr
Nearest destinations
- Lancaster United States · 40 km · 2,080 h sun/yr · best in May
- Hagerstown United States · 98 km · 2,175 h sun/yr · best in Aug
- State College United States · 117 km · 2,007 h sun/yr · best in Sep
- Williamsport United States · 117 km · 1,944 h sun/yr · best in May
Head-to-head
How Harrisburg compares month by month: Harrisburg vs Philadelphia · Harrisburg vs Washington · Harrisburg vs Baltimore · Harrisburg vs Allentown/Bethlehem · all comparisons
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