Needham (MA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Needham.
Climate overview of Needham
Needham, 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 3°C (37°F) in January.
With around 1235 mm (49 in) of annual rain/snowfall, Needham 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 December. The sunniest month is May, with 10.0 hours of sunshine per day on average.
Needham Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Needham - and find the best time to visit.
Monthly Temperature in Needham
Depending on the time of the year, temperatures range from comfortable to chilly in Needham. 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 3°C (37°F).
At night, temperatures range from around 17°C (63°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 Needham
Needham has a relatively rain/snowy climate with high precipitation levels, averaging 1235 mm (49 in) of rain/snowfall annually. Despite minor fluctuations, Needham enjoys fairly consistent precipitation throughout the year. In December, you can expect around 128 mm (5 in) of precipitation, while in September, Needham receives about 82 mm (3.2 in). For more details, please visit our Needham 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 Needham
Needham 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
Water Temperature in Needham
The mean water temperature over the year ranges from 4°C (39°F) in February to 20°C (68°F) in August.
Water temperature over the year
Humidity in Needham by Month
The relative humidity is high throughout the year in Needham.
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
Wind Speed in Needham
The mean wind speed over the year ranges from 5 m/s (10 knots) in June, July, August and September to 7 m/s (14 knots) in January, February, March and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Needham
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, July and September
- Warmest weather: July and August
- Most sunshine: May and July
- Best for swimming: August, with water temperatures around 20°C (68°F).
- 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 Needham
What is the best time to visit Needham?
May, July and September typically offer the most optimal weather in Needham. In contrast, January, February, March and December tend to have less optimal conditions. Needham has warm summers and cold winters.
What temperatures can I expect in Needham?
Daytime highs range from 3°C (37°F) in January to 29°C (84°F) in July. Nighttime lows range from -8°C (18°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Needham get?
Annual rainfall is around 1235 mm (49 in). December is the wettest month with 128 mm (5 in), while September is the driest with 82 mm (3.2 in). In the coldest months, precipitation may fall as snow/rain.
How sunny is Needham?
Needham 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, Needham enjoys abundant sunshine.
Needham 3-Day Forecast
Needham on the map
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