Lebanon (NH) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Lebanon.
Climate overview of Lebanon
Lebanon, New Hampshire, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 28°C (82°F) in July, while winters cool to -1°C (30°F) in January.
With around 1113 mm (44 in) of annual rain/snowfall, Lebanon has a notably wet climate. However, this rain/snowfall is not evenly distributed — the city has warm summers and very cold winters. The wettest month is July.
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
Depending on the time of the year, temperatures range from comfortable to very cold in Lebanon. Average daytime temperatures reach a comfortable 28°C (82°F) in July. In January, the coolest month of the year, temperatures drop to a very cold -1°C (30°F).
At night, temperatures range from around 15°C (59°F) in July to -11°C (12°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Lebanon
Lebanon has a relatively rain/snowy climate with high precipitation levels, averaging 1113 mm (44 in) of rain/snowfall annually. Lebanon can be quite wet during July, receiving approximately 139 mm (5.5 in) of precipitation over 14 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 60 mm (2.4 in) of precipitation spread across 12 snowy days. For more details, please visit our Lebanon Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Lebanon
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May and September
- Warmest weather: July and August
- Fewest rainy days: February, March, September and November
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -11°C (12°F).
Frequently asked questions about the climate in Lebanon
What is the best time to visit Lebanon?
May and September typically offer the most optimal weather in Lebanon. In contrast, January, February, March, November and December tend to have less optimal conditions. Lebanon has warm summers and very cold winters.
What temperatures can I expect in Lebanon?
Daytime highs range from -1°C (30°F) in January to 28°C (82°F) in July. Nighttime lows range from -11°C (12°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Lebanon get?
Annual rainfall is around 1113 mm (44 in). July is the wettest month with 139 mm (5.5 in), while January is the driest with 60 mm (2.4 in).
Lebanon 3-Day Forecast
Lebanon (NH) 3-Day Forecast
Lebanon on the map
Lebanon is highlighted - select any city to see its climate.
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