Andover (MA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Andover.
Climate overview of Andover
Andover, Massachusetts, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 29°C (84°F) in July, while winters cool to 2°C (36°F) in January.
With around 1223 mm (48 in) of annual rain/snowfall, Andover has a notably wet climate. However, this rain/snowfall is not evenly distributed — the city has warm summers and cold winters. The wettest month is June. The sunniest month is May, with 10.0 hours of sunshine per day on average.
Andover Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Andover - and find the best time to visit.
Monthly Temperature in Andover
Depending on the time of the year, temperatures range from comfortable to chilly in Andover. Average daytime temperatures reach a comfortable 29°C (84°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 2°C (36°F).
At night, temperatures range from around 18°C (64°F) in July to -8°C (18°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Andover
Andover has a relatively rain/snowy climate with high precipitation levels, averaging 1223 mm (48 in) of rain/snowfall annually. Despite minor fluctuations, Andover enjoys fairly consistent precipitation throughout the year. In June, you can expect around 130 mm (5.1 in) of precipitation, while in September, Andover receives about 81 mm (3.2 in). For more details, please visit our Andover Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Andover
Andover can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 10.0 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 4.7 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Andover by Month
The relative humidity is high throughout the year in Andover.
The city experiences its highest humidity in August, reaching 72%. In February, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Andover
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, August and September
- Warmest weather: July and August
- Most sunshine: May and July
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -8°C (18°F).
Frequently asked questions about the climate in Andover
What is the best time to visit Andover?
May, August and September typically offer the most optimal weather in Andover. In contrast, January, February, March and December tend to have less optimal conditions. Andover has warm summers and cold winters.
What temperatures can I expect in Andover?
Daytime highs range from 2°C (36°F) in January to 29°C (84°F) in July. Nighttime lows range from -8°C (18°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Andover get?
Annual rainfall is around 1223 mm (48 in). June is the wettest month with 130 mm (5.1 in), while September is the driest with 81 mm (3.2 in).
How sunny is Andover?
Andover receives around 2,665 hours of sunshine per year. May is the sunniest month with 301 hours, while December is the cloudiest with just 141 hours. Overall, Andover enjoys abundant sunshine.
Andover 3-Day Forecast
Andover (MA) 3-Day Forecast
Andover on the map
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