Harrisburg Weather & Climate

United States of America

Harrisburg sees feels-like daytime highs peak around 35.4°C in July and nighttime lows bottom out near -4.5°C in January. May is the wettest month (~90 mm), while February is the driest (~42 mm). For sunshine, September leads with about 65% clear skies.

Best time to visit Harrisburg

Based on mild feels-like temperatures and low rain chances, the most comfortable months are May, September, and June — expect around 14.825.9°C with roughly 36% chance of rain on a given day in May.

Harrisburg climate by month

MonthLow / High °CRain %RainfallClear skiesWind
January-4.5° / 1.4°12%45 mm44%11.3 kph
February-3.3° / 3.6°12%42 mm46%11.9 kph
March1.4° / 10.2°22%66 mm49%11.7 kph
April7.5° / 17.8°30%82 mm50%10.5 kph
May14.8° / 25.9°36%90 mm51%8.9 kph
June21° / 31.8°38%88 mm54%7.7 kph
July23.6° / 35.4°38%86 mm60%7.1 kph
August22.1° / 32.9°34%84 mm64%7 kph
September17.1° / 27.3°28%89 mm65%7.7 kph
October9.9° / 19.2°24%88 mm61%8.7 kph
November3.4° / 10.7°22%77 mm52%9.6 kph
December-1.5° / 4.7°17%64 mm46%10.4 kph

Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).

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