Climate and monthly weather forecast
Northampton, MA

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The climate of Northampton

Northampton, Massachusetts, situated in the United States, is characterized by its Humid Continental climate. This region experiences no dry season, and summers are warm, complimenting the Köppen climate classification of Dfb. As per the climatological data, the weather in Northampton undergoes a significant transformation throughout the year.

Analysis of the weather parameters reveals that the temperature reaches peak summertime highs of about 81.7°F (27.6°C) and retreats to its minimum wintertime lows of 18°F (-7.8°C). This substantial variation accommodates both the comfortable warmth of the summer and the frosty grip of the winter. The daylight span also oscillates between 9.1 hours in December and 15.2 hours during June, further underlining the extent of the seasonable weather shift.

Northampton's climate exhibits additional distinct patterns. A pronounced decrease in snowfall from 1.73" (44mm) in January to zero in June suggests the winter's end. Likewise, the variation in humidity, ranging from 72% to 82%, reflects seasonal changes. It is worth noting the substantial amount of rainfall during October, amounting to 1.61" (41mm) across approximately 11.7 days, which surpasses any other month.

The best time to visit Northampton

For travelers planning a visit to Northampton and keen to make the most of the fine weather, summertime is particularly inviting. From June to August, the region basks in average high temperatures between 75.2°F (24°C) to 81.7°F (27.6°C). The amount of sunshine also plateaus at around 10.3 hours per day, assuring a vibrant ambiance, ideal for outdoor pursuits. Combined with the lowest annual pressure fluctuations of around 29.92" (760mm) in June, these months provide the most stable and pleasant weather conditions.

The worst time to visit Northampton

Conversely, the winter months of December through February pose several challenges for visitors. During this period, temperatures plummet to lows of 18°F (-7.8°C) to 18.7°F (-7.4°C), with a winter apex barely reaching 33.4°F (0.8°C). Coupled with abundant snowfall of up to 1.85" (47mm) in February, and reduced daylight hours dwindling to 9.1 hours in December, these conditions can be harsh for outdoor activities. Potential visitors who are not keen on braving icy outdoor conditions should avoid this period.

Spring weather in Northampton

Spring in Northampton commences in March and lasts until May, marked by a gradual transition from the chill of winter to the warmth of summer. During these months, daily high temperatures climb slowly from 41.7°F (5.4°C) in March to 67.6°F (19.8°C) by the close of May. Concurrently, snowfall continually decreases from 1.06" (27mm) in March to a negligible 0.08" (2mm) in May. Rainfall also varies slightly, from 0.98" (25mm) in March to 1.38" (35mm) in May, spread across 11-13.9 days.

Summer weather in Northampton

June through August make up the summer period in Northampton. This season promises high temperatures, peaking at 81.7°F (27.6°C) in July. No snowfall occurs during these months, supplanted by increased rainfall amounts—peaking at 1.46" (37mm) in both June and July. Yet, these heavy rainfalls do not overshadow the abundant sunshine, with light filling the city for an impressive 15.2 hours in June, easing slightly to 14.9 hours in July.

Autumn weather in Northampton

Autumn in Northampton ushers in the transition from balmy summer highs to the colder winter climate. September to November are characterized by temperatures gradually falling from a high of 72°F (22.2°C) in September to a lower 46.9°F (8.3°C) by November. Corresponding with this decrease in temperature, daylight hours decrease from 12.5 hours in September to 9.8 hours in November.

Winter weather in Northampton

Winters in Northampton, encompassing December through February, unveil the harshest weather conditions. Temperatures range from lows of 18°F (-7.8°C) in January to slightly higher 36°F (2.2°C) in December. Coupled with snowfall peaking at 1.85" (47mm) in February and the shortest daylight duration of 9.1 hours in December, these factors converge to form decidedly less hospitable conditions during these winter months.

Weather in January

Northampton, Massachusetts welcomes the New Year under a blanket of snow with January being one of the coldest months. In terms of temperature, January sees lows of 18°F (-7.8°C) and highs of 30.4°F (-0.9°C). The chill in the air is exacerbated by an average wind speed of 8mph (12.9km/h), turning the streets into wind tunnels. Weather in January »

Weather in February

Much like January, February continues to be in the grip of winter in Northampton. The slight increase in temperature from lows of 18.7°F (-7.4°C) to highs of 33.4°F (0.8°C) indicate the slow, incoming arrival of spring. This month sees the highest snowfall of the year at 1.85" (47mm), turning the city into a winter wonderland. Weather in February »

Weather in March

As per the data, Northampton witnesses a drastic temperature rise in March with values ranging from 27°F (-2.8°C) to 41.7°F (5.4°C). Winter begins to recede, and the early signs of spring start to appear in the city. The melting snow gives way to scattered showers, keeping the humidity in check. Weather in March »

Weather in April

With spring in full bloom, April brings a significant temperature shift, with the mercury ranging from 37.2°F (2.9°C) to 55°F (12.8°C). Natural beauty starts to manifest itself as the greenery is revived by the annual spring rain. Weather in April »

Weather in May

May is characterized by warmer climate and fewer clouds, as summer begins to make its presence felt in Northampton. The temperature swings between the mild Zone of 47.5°F (8.6°C) and the quite warm temperature of 67.6°F (19.8°C). Weather in May »

Weather in June

June marks the true arrival of summer in Northampton, with the highest recorded daylight hours of approximately 15.2. The city sees increased outdoor activities with temperatures between a cozy 54.3°F (12.4°C) and a sunny 75.2°F (24°C). Weather in June »

Weather in July

Northampton, Massachusetts experiences the hottest month of the year in July, with temperatures soaring from 60.8°F (16°C) and peaking at 81.7°F (27.6°C). It's a time when the city is busting with summer activities as everyone soaks up the sun. Weather in July »

Weather in August

August continues the trend of warmth in Northampton, with temperatures that range from 59°F (15°C) to 79.3°F (26.3°C). While there's a slight drop in temperature from July, the summer heat still looms large. August is characterized by late-summer events, open-air concerts, and bustling farmers' markets. Weather in August »

Weather in September

September provides a smooth transition from the sweltering summer to pleasant fall with temperatures swinging from 52.7°F (11.5°C) to 72°F (22.2°C). The city of Northampton begins to showcase its fall colors, attracting numerous visitors. Weather in September »

Weather in October

Fall sets in fully by October, bringing the temperature range to between 43.7°F (6.5°C) and 58.8°F (14.9°C) in Northampton. October is characterized by vibrant fall foliage and enriching cultural events. Rainfall is a bit erratic during this period, enhancing the freshness of the city. Weather in October »

Weather in November

November brings colder winds to Northampton, marking the transition to winter. The drop in temperature from 33.1°F (0.6°C) to 46.9°F (8.3°C) calls for heavier clothing as Northampton heads into the holiday season. Leaves fall and the cityscape transforms, preparing itself for the impending snowfall. Weather in November »

Weather in December

Winter announces its arrival in December when Northampton sees temperatures between 24.8°F (-4°C) and 36°F (2.2°C). Festive spirit fills the air as snow carpets the city, creating a picturesque winter scene. Despite the chill, the city glows with holiday decorations and bustling markets. Weather in December »

Frequently asked questions

What is the coldest time of year?

Northampton's coldest weather arrives in January, when temperatures average a high of 30.4°F (-0.9°C) and a low of 18°F (-7.8°C).

How much does it rain?

In Northampton, during the entire year, the rain falls for 134.1 days and collects up to 14.84" (377mm) of precipitation.

When does it snow?

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

How much does it snow?

In Northampton, during the entire year, snow falls for 28.6 days and aggregates up to 6.5" (165mm) of snow.

What is the month with the lowest UV index?

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2.

What is the most humid month?

With an average relative humidity of 82%, February is the most humid month.

What is the driest month?

The month with the least rainfall is February, when the rain falls for 9.2 days and typically collects 0.91" (23mm) of precipitation.

When does it snow the most?

The month with the most snowfall is February, when snow falls for 7.7 days and typically aggregates up to 1.85" (47mm) of snow.

What is the month with the least sunshine?

February has the least sunshine of the year, with an average of 4.6h 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?

The least humid month in Northampton is April, with an average relative humidity of 72%.

When it does not snow?

In Northampton, snow does not fall in June through October.

When are the longest days?

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

When is the highest UV index in Northampton?

June and July, with an average maximum UV index of 6, are months with the highest UV index.

What are the warmest months?

July registers as the month with the average highest temperatures, reaching 81.7°F (27.6°C) at its peak and 60.8°F (16°C) at the lowest.

What is the month with the most sunshine?

July and August, with an average of 10.3h of sunshine, are months with the most sunshine.

What is the wettest month?

October is the month with the most rainfall. Rain falls for 11.7 days and accumulates 1.61" (41mm) of precipitation.

What is the month with the shortest days?

With an average of 9h and 6min of daylight, December has the shortest days of the year.

Average temperature
Northampton, MA

Average temperature - Northampton, MA

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (30.4°F).

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure
Northampton, MA

Average pressure - Northampton, MA

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed
Northampton, MA

Average wind speed - Northampton, MA

The windiest months (with the highest average wind speed) are January, February and March (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity
Northampton, MA

Average humidity - Northampton, MA

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (72%).

Average rainfall
Northampton, MA

Average rainfall - Northampton, MA

The wettest month (with the highest rainfall) is October (1.61").
The driest month (with the least rainfall) is February (0.91").

Average rainfall days
Northampton, MA

Average rainfall days - Northampton, MA

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (8.5 days).

Average snowfall
Northampton, MA

Average snowfall - Northampton, MA

The month with the highest snowfall is February (1.85").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days
Northampton, MA

Average snowfall days - Northampton, MA

The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Northampton, MA

Average daylight / Average sunshine - Northampton, 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 months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days
Northampton, MA

Average sunshine days - Northampton, MA

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (13.7 days).

Average UV index
Northampton, MA

Average UV index - Northampton, MA

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

Average visibility
Northampton, MA

Average visibility - Northampton, MA

The months with the highest visibility are January, March, April, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August, September and October (5mi).

Northampton, Massachusetts, USA

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