Lebanon (PA) Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Lebanon.

Current conditions Lebanon –  

Climate overview of Lebanon

The climate in Lebanon, Pennsylvania, United States of America, is marked by large temperature swings across the seasons, ranging from 30°C (86°F) in July to 3°C (37°F) in January.

The city receives considerable rain/snowfall, with around 1205 mm (47 in) annually. June is the wettest month. It has warm summers and cold winters. July is the sunniest month, averaging 10.3 hours of sunshine per day.

Lebanon Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Lebanon - and find the best time to visit.

Monthly Temperature in Lebanon

In Lebanon, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a comfortable 30°C (86°F) in July to a chilly 3°C (37°F) in the coolest month, January.

Nights vary from 18°C (64°F) in July to around -7°C (19°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Lebanon

Lebanon experiences significant rain/snowfall throughout the year, averaging 1205 mm (47 in) of precipitation annually. The climate in Lebanon shows significant variation throughout the year. Expect high rainfall in June, the wettest month, with an average of 141 mm (5.6 in) of precipitation over 14 rainy days.

In contrast, the driest month January offers drier and sunnier days, with around 64 mm (2.5 in) of snow/rainfall over 10 snowy/rainy days. For more details, please visit our Lebanon Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Sunshine Hours in Lebanon

For those who appreciate different seasons, Lebanon serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.3 hours of sunshine daily, and embrace the darker days in December, offering only 4.2 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Harrisburg, the United States of America (39 KM, 24 Miles).

Daily hours of sunshine

Data from: Harrisburg, the United States of America (39 KM, 24 Miles).

Humidity in Lebanon by Month

Best Time to Visit Lebanon

For comfortable weather, consider visiting Lebanon in May, June, August and September. Conditions are usually least favourable in January, February, March and December.

Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.

  • Best overall: May, June, August and September
  • Warmest weather: July and August
  • Most sunshine: July
  • Seasonal pattern: Warm summers and cold winters
  • Coldest conditions: January, with freezing nights around -7°C (19°F).

Frequently asked questions about the climate in Lebanon

What is the best time to visit Lebanon?

May, June, August and September typically offer the most optimal weather in Lebanon. In contrast, January, February, March and December tend to have less optimal conditions. Lebanon has warm summers and cold winters.

What temperatures can I expect in Lebanon?

Daytime highs range from 3°C (37°F) in January to 30°C (86°F) in July. Nighttime lows range from -7°C (19°F) to 18°C (64°F). Temperatures vary considerably through the year.

How much rain does Lebanon get?

Annual rainfall is around 1205 mm (47 in). June is the wettest month with 141 mm (5.6 in), while January is the driest with 64 mm (2.5 in).

How sunny is Lebanon?

Lebanon receives around 2,609 hours of sunshine per year. July is the sunniest month with 310 hours, while December is the cloudiest with just 126 hours. Overall, Lebanon enjoys abundant sunshine.

Lebanon 3-Day Forecast

Lebanon on the map

Lebanon is highlighted - select any city to see its climate.

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