Climate and monthly weather forecast
Newton, MA

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Ancient historic buildings within the Union Historic District in Newton City, Massachusetts
Ancient historic buildings within the Union Historic District in Newton City, Massachusetts

The climate of Newton

The geographical position of Newton, Massachusetts, USA situates it in a climate zone characterized as Dfa under the Köppen climate classification. This denotes Newton as a region with a humid continental climate, experiencing no dry season and hot summers. Throughout the course of the year, Newton's climate fluctuates considerably, with the average monthly temperature differing as much as 48.3°F (9.1°C) between its highest and lowest.

Newton sees its temperature soar to a yearly high of 81.9°F (27.7°C) in July and plunges to its lowest average temperature of 21.7°F (-5.7°C) in January. A pattern of increasing humidity is observed from April to July, holding at 74% for the summer months, and then slightly falls and maintains at 76% in the fall, from September to November.

Rainfall in Newton varies only marginally throughout the year, with November witnessing the maximum precipitation of 0.67" (17mm), while September sees the minimum with 0.24" (6mm). Snowfall is primarily confined to the winter months, starting from December with 0.28" (7mm) and peaking in February at 0.75" (19mm). Despite the rainfall and snowfall, Newton enjoys a considerable amount of sunlight and daylight throughout the year, winding to the shortest daylight hours of 9.1 hours in December, and extending to the longest daylight hours of 15.2 hours in June.

The best time to visit Newton

The optimal time to visit Newton for favorable weather conditions correlates with the summer months. From May to September, the temperature in Newton consistently remains above 55.9°F (13.3°C) and reaches 81.9°F (27.7°C), presenting ideal conditions for outdoor activities. The area is basked in sunlight and daylight hours are the longest between May to August, ranging from 14.6 hours to 15.2 hours, which provides ample time to engage in sightseeing. Coupled with lower wind speeds from 5.8mph (9.3km/h) to 7.1mph (11.4km/h), during this period, Newton offers a friendly, hospitable environment for visitors.

The worst time to visit Newton

The onset of winter in Newton, particularly between December and February, poses challenges to travelers. The temperature dips drastically from 21.7°F (-5.7°C) to 36.3°F (2.4°C), making the weather harsh and uninviting. Snowfall is maximized in these winter months, increasing travel risks and offering limited outdoor activities. Wind speed also climbs from 8.6mph (13.8km/h) to 9.2mph (14.8km/h), adding to the chilly winter conditions.

Spring weather in Newton

Spring in Newton can be described as a transitional season, marked by a steady incline in temperatures. From the start of spring in March when the temperature rests at 43.3°F (6.3°C), it rises to 55.9°F (13.3°C) by April and reaches 66.7°F (19.3°C) in May. Simultaneously, rainfall amounts also show an upward trend from 0.47" (12mm) in March to 0.63" (16mm) in April, although it decreases marginally to 0.51" (13mm) in May.

Summer weather in Newton

Newtown's summer season is warm and inviting. June marks the beginning of summer with temperatures at 75°F (23.9°C), escalating to the annual peak of 81.9°F (27.7°C) in July, and then slightly decreasing to 81°F (27.2°C) in August. Humidity remains fairly consistent during these months. There is an equal amount of precipitation in June and July at 0.51" (13mm), reducing to 0.43" (11mm) in August.

Autumn weather in Newton

Autumn in Newton is characterized by a gradual drop in temperatures and increased precipitation. From a comfortable 73°F (22.8°C) in September, temperatures fall to 61°F (16.1°C) in October and continue to drop to 49.3°F (9.6°C) in November. Precipitation displays an overlapping trend, rising from 0.24" (6mm) in September, to 0.51" (13mm) in October, and peaking at 0.67" (17mm) in November.

Winter weather in Newton

Winter in Newton is characterized by low temperatures, snowfall, and shorter daylight hours. The temperatures steadily drop from 39.2°F (4°C) in December to 33.6°F (0.9°C) in January and rise slightly to 36.3°F (2.4°C) in February. Snowfall begins in December with 0.28" (7mm), intensifies to 0.67" (17mm) in January, and reaches the yearly high of 0.75" (19mm) in February. Daylight hours throughout the winter period oscillate between 9.1 hours and 10.6 hours.

Weather in January

January in Newton, Massachusetts presents as a decidedly frosty month, in the firm clutches of the New England winter. Thermometer readings can take a dip to an icy 21.7°F (-5.7°C) as a low, while a lukewarm 33.6°F (0.9°C) marks the high. Weather in January »

Weather in February

The Newton climate slightly loosens its icy grip in February, with a subtle increase in temperature. Climbing from the averages of January, lows now stand at 23°F (-5°C) and highs rise to 36.3°F (2.4°C). The area receives a tiny additional measure of sunshine, as daylight extends to nearly half of the waking day. Weather in February »

Weather in March

A meaningful change marks the weather in Newton in March, as it ushers in the early hints of springtime. The low temperatures rise to 30°F (-1.1°C), and the highs break through the barrier of chilling cold, reaching 43.3°F (6.3°C). Weather in March »

Weather in April

April swings the pendulum further towards the warm end of the spectrum in Newton. Residents anticipate temperatures well into the comfortable zone, as lows climb up to 39.9°F (4.4°C) and highs hit 55.9°F (13.3°C) for monthly averages. Weather in April »

Weather in May

Welcoming the festival of flowers, Newton experiences a delightful May. With a rise in monthly average temperatures, the region finds itself basking in the pleasant aura of Mid-spring. This climatic condition stimulates blooming, painting a kaleidoscope of colors across fields and gardens. Weather in May »

Weather in June

June in Newton is synonymous with the arrival of summer. The monthly temperature averages now hover between a comfortable low of 56.8°F (13.8°C) and a noticeably warmer high of 75°F (23.9°C). Predictably, the daylight extends further, giving way to longer, sun-drenched days. Weather in June »

Weather in July

The peak of summer, July, also marks the hottest month in Newton. High temperatures stretch to a sweltering 81.9°F (27.7°C) while the lows reflect a warm 64°F (17.8°C). Despite the generous daylight hours, the town does not fully escape the cloud cover, resulting in a mix of sun-soaked and shadowy periods. Weather in July »

Weather in August

Though mirroring its predecessor in many aspects, August in Newton does hint at a subtle toning down of the summer heat. While the high average temperatures continue to linger around 81°F (27.2°C), the low temperatures point to relatively cooler nights at an average of 63°F (17.2°C). Weather in August »

Weather in September

September brings a noticeable change in Newton's weather, with the summer heat beginning to wane. September days can expect temperatures from 56.3°F (13.5°C) to 73°F (22.8°C), ushering the season of harvests. While the wind speeds experience a minor increase, they do not significantly impact the prevailing conditions. Weather in September »

Weather in October

October in Newton marks the full advent of Autumn. A robust decrease in temperature points to cooler days ahead, with the thermometer reading between 47.3°F (8.5°C) and 61°F (16.1°C). Despite this drop, rainfall remains at an average level and does not significantly impact the climate. Weather in October »

Weather in November

As Winter approaches, November in Newton brings with it a drop in temperature. The averages decidedly tip into the cooler side, with lows of 36.7°F (2.6°C) and highs of 49.3°F (9.6°C). Despite this apparent chill, November does not shield the city from ample sunshine, with clear skies dominating the scenario. Weather in November »

Weather in December

December signifies the arrival of the chilling winter in Newton. The temperature further plummets to chilly averages between 28.8°F (-1.8°C) as the low and 39.2°F (4°C) as the high. One can notice a significant decrease in daylight hours in the city, hinting at the lean period ahead. Weather in December »

Frequently asked questions

What month is the coldest?

January stands out as Newton's coldest month, with an average high-temperature of 33.6°F (0.9°C) and a low-temperature of 21.7°F (-5.7°C).

How much does it rain?

Throughout the year, in Newton, there are 85.9 rainfall days, and 5.87" (149mm) of precipitation is accumulated.

When does it snow?

January through May, November and December are months with snowfall.

How many days does it snow?

Throughout the year, there are 18.8 snowfall days, and 3.15" (80mm) of snow is accumulated.

What are the months with the lowest UV index?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Newton.

What is the most humid month in Newton?

The most humid month in Newton is February, with an average relative humidity of 78%.

What is the month with the least sunshine?

The month with the least sunshine in Newton is February, with an average of 4.7h of sunshine.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month?

April is the least humid month, with an average relative humidity of 70%.

When it does not snow?

June through October are months without snowfall in Newton.

When are the longest days?

June has the longest days of the year, with an average of 15h and 12min of daylight.

When is the highest UV index?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the hottest time of year?

Newton's warmest month, July, generally records average temperatures ranging from a high of 81.9°F (27.7°C) to a low of 64°F (17.8°C).

What month has the most sunshine?

The month with the most sunshine is August, with an average of 10.5h of sunshine.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 6.6 days and typically collects 0.24" (6mm) of precipitation.

What is the rainiest month?

November is the month with the most rainfall. Rain falls for 5.6 days and accumulates 0.67" (17mm) of precipitation.

When does it snow the most?

December is the month with the most snowfall in Newton. Snow falls for 2.6 days and accumulates 0.91" (23mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 6min of daylight.

Average pressure
Newton, MA

Average pressure - Newton, MA

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed
Newton, MA

Average wind speed - Newton, MA

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity
Newton, MA

Average humidity - Newton, MA

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).

Average rainfall
Newton, MA

Average rainfall - Newton, MA

The wettest month (with the highest rainfall) is November (0.67").
The driest month (with the least rainfall) is September (0.24").

Average rainfall days
Newton, MA

Average rainfall days - Newton, MA

The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is February (4.1 days).

Average snowfall
Newton, MA

Average snowfall - Newton, MA

The month with the highest snowfall is December (0.91").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days
Newton, MA

Average snowfall days - Newton, MA

The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Newton, MA

Average daylight / Average sunshine - Newton, MA

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days
Newton, MA

Average sunshine days - Newton, MA

The months with the most sunshine days are January and November (22.5 days).
The month with the least sunshine days is June (17.5 days).

Average UV index
Newton, MA

Average UV index - Newton, MA

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average visibility
Newton, MA

Average visibility - Newton, MA

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Newton, Massachusetts, USA

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