Climate and monthly weather forecast
Greenfield, MA

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The climate of Greenfield

Geographically, Greenfield lies in a region with a predominate climate, designated as Dfb or "Humid Continental, no dry season, warm summer" on the Köppen climate classification. This classification signifies that the area experiences significant temperature variation throughout the year, with warm to hot summers and cold winters.

Greenfield's overall annual climate is deeply influenced by this wide temperature range. The highest average temperature peaks at 81.1°F (27.3°C) in July, while the coldest month is January with an average minimum temperature of 16.5°F (-8.6°C). That said, this area is not characterized by extremes, but rather substantial shifts from warm to cold throughout the year.

Rainfall in Greenfield is consistently spread throughout the 12-month cycle, with average total precipitation ranging from 1.93" (49mm) in September and peaking at 3.03" (77mm) in December and October. Snowfall is concentrated in the colder months from November through April, with the highest average accumulation of 7.01" (178mm) falling in February. The area experiences humidity levels that hover around the 75% mark across the year, with little monthly variation.

An aspect of this area's climate worth noting is the sunlight hours. Daylight hours fluctuate significantly, from 9.1 hours in December to 15.3 hours in June. This results in a significant swing in sunshine hours, from a low of 5 hours in December and February to the maximum 10.2 hours in July and August.

The best time to visit Greenfield

Due to the relatively high temperatures and significant sunlight, July and August are potentially the most favorable months for visitors. The average high temperature is in the range from 78.6°F (25.9°C) to 81.1°F (27.3°C). The rainfall is relatively lower during these months, with an average of 2.17" (55mm) and 2.52" (64mm) respectively. Sunlight lasts for a dominating 10.2 hours per day, allowing plenty of time for outdoor activities.

The worst time to visit Greenfield

The winter months, particularly January and February, might be considered less favorable for visitors primarily due to low temperatures and high snowfall. January witnesses the average minimum temperature falling to a chilly 16.5°F (-8.6°C), accompanied by a significant 5.75" (146mm) of snowfall. Daylight hrs also plummet to its annual lowest, with just 9.1 to 9.5 hours seen in December and January respectively.

Spring weather in Greenfield

Spring in Greenfield witnesses a significant shift in weather parameters. March starts with a moderate temperature, ranging from 25.7°F (-3.5°C) to 41°F (5°C), gradually warming through April and May. Rainfall during this period averages around 2.4" (61mm) per month. Moreover, these months contain 13 to 16.3 rainy days. The snowfall also tapers off drastically from March onward.

Summer weather in Greenfield

During summer, Greenfield experiences its highest average temperatures, with a peak of 81.1°F (27.3°C) reached in July. The lowest summer temperature falls to 53.2°F (11.8°C). Rainfall during the summer months ranges from 2.48" (63mm) in May to 2.52" (64mm) in July, with June being the wettest month experiencing 2.68" (68mm) rainfall spread across 15.8 days. Despite the high temperatures, humidity remains fairly constant at around 75%.

Autumn weather in Greenfield

Autumn marks a gradual decrease in temperature. September begins with an average high temperature of 71.8°F (22.1°C), falling to 58.1°F (14.5°C) by October and further dropping to a cooler 41°F (5°C) in November. Rainfall in autumn sees a sizable variance, starting at 1.93" (49mm) in September and reaching 3.03" (77mm) by October. Nevertheless, these months are relatively dry with only 11 to 14.5 rainy days.

Winter weather in Greenfield

The winter season in Greenfield is characterized by the plummeting temperatures, with the average lows down to 16.5°F (-8.6°C) in January and highs barely touching 35.1°F (1.7°C). This period also witnesses significant snowfall - the area being covered with over 4 to 7" (178mm) of snow from December to February. Despite the cold, the humidity levels remain relatively high, hovering around the 81% mark. With daylight hours being at their lowest, the winter season can feel quite frosty and dark.

Weather in January

January in Greenfield, Massachusetts ushers in the New Year with its coldest temperatures. The climate typically sees lows dipping to 16.5°F (-8.6°C) while highs average 29.5°F (-1.4°C). As it lays a snowy blanket over the city, activities shift inside to enjoy the warmth. Weather in January »

Weather in February

In February, winter still dominates the Greenfield, Massachusetts weather scene with temperatures marginally higher than January. Of note are the 7.01" (178mm) of snow that transform the landscape into a field of white. Despite the cold, the city's resilience shines through with locals often braving the weather to enjoy winter festivities. Weather in February »

Weather in March

March experiences significant climatic changes as winter transitions into spring. The city sees substantially less snow, with snowfall decreasing to 3.74" (95mm). These conditions signal the farewell to winter's chill, paving the way for the advent of spring, with its moderate temperatures and emerging greenery. Weather in March »

Weather in April

The city of Greenfield, Massachusetts swings into full spring mode in April. The month witnesses a significant rise in temperature, with highs reaching up to 54.1°F (12.3°C), a perceptible jump from the March figures. Outdoor activities increase, with landscapes vibrant with colorful flora. Weather in April »

Weather in May

May marks the dawn of pleasant persistence as Greenfield, Massachusetts segues from spring to summer. A notable feature is that Greenfield sees daylight for an impressive 14.6 hours. This change brings along delightful transformations as gardens fill up with summer blooms and outings become more frequent. Weather in May »

Weather in June

June introduces summer to Greenfield, Massachusetts, with warmer temperatures persisting. Prolonged periods of sunshine coupled with about 9.4 hours of sunlight make it a welcome sight for sun-lovers. Residents anticipate July, another month of summer warmth, with picnics and outdoor sport activities reaching their zenith. Weather in June »

Weather in July

In July, the peak of summer is realized in Greenfield, Massachusetts with an average high temperature reaching up to 81.1°F (27.3°C). Residents make the best of the season, enjoying warm, sunny days and balmy evenings. The advent of August brings a subtle decrease in temperature, yet maintaining the delight of summer. Weather in July »

Weather in August

August is a fascinating month in Greenfield, Massachusetts with summer's grip gradually lessening. The temperatures scale down slightly from July, but the summer vibes remain. As daylight hours decrease, a slight nip enters the air by the end of the month. Weather in August »

Weather in September

September brings the fall season to Greenfield, Massachusetts wherein temperatures begin to show a declining trend. It is the beginning of the fall foliage season with leaves changing colors from lush green to vibrant yellows, oranges, and reds. Weather in September »

Weather in October

October continues the fall spectacle in Greenfield, Massachusetts with temperatures cooling further. The colors of autumn are at their peak, offering a glorious spectacle. With shorter days and longer shadows, the city veers towards the cusp of winter. Weather in October »

Weather in November

The last month of the autumn, November, is chilly month in Greenfield, Massachusetts, with an average temperature ranging between min 32.4°F (0.2°C) and max 45.9°F (7.7°C). Onset of November comes with a temperature decline, the average high falling from a mild 58.1°F (14.5°C) in October to a chilly 45.9°F (7.7°C). Weather in November »

Weather in December

Greenfield, Massachusetts bids farewell to the year with a fresh covering of 4.8" (122mm) of snow in December. This harks the onset of the holiday season, with twinkling lights adorning the cityscape against a backdrop of snow. Weather in December »
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Frequently asked questions

What month is the coldest in Greenfield?

January, having an average high-temperature of 29.5°F (-1.4°C) and an average low-temperature of 16.5°F (-8.6°C), is the coldest month in Greenfield, Massachusetts.

How much does it rain in Greenfield?

In Greenfield, during the entire year, the rain falls for 158.8 days and collects up to 30" (762mm) of precipitation.

When does it snow in Greenfield?

January through May, October through December are months with snowfall.

How much does it snow in Greenfield?

In Greenfield, during the entire year, snow falls for 42.1 days and aggregates up to 24.53" (623mm) of snow.

What is the month with the lowest UV index in Greenfield?

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

What is the most humid month in Greenfield?

The most humid month in Greenfield is February, with an average relative humidity of 83%.

What is the snowiest month in Greenfield?

February is the month with the most snowfall in Greenfield, Massachusetts. Snow falls for 10.4 days and accumulates 7.01" (178mm) of snow.

What is the month with the least sunshine in Greenfield?

February has the least sunshine of the year in Greenfield, Massachusetts, with an average of 4.5h of sunshine.

When is Daylight Saving Time (DST) in Greenfield?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Greenfield, 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 in Greenfield?

The least humid month in Greenfield is April, with an average relative humidity of 73%.

What are the months with the highest UV index in Greenfield?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Greenfield, Massachusetts.

When it does not snow in Greenfield?

In Greenfield, snow does not fall in June through September.

When are the longest days in Greenfield?

With an average of 15h and 18min of daylight, June has the longest days of the year in Greenfield.

What are the warmest months in Greenfield?

July is the month when Greenfield's temperatures reach their peak, with averages of 81.1°F (27.3°C) and lows of 59.2°F (15.1°C).

What are the months with the most sunshine in Greenfield?

July and August, with an average of 10.2h of sunshine, are months with the most sunshine in Greenfield.

What is the driest month in Greenfield?

September is the month with the least rainfall. Rain falls for 11.7 days and accumulates 1.93" (49mm) of precipitation.

What is the wettest month in Greenfield?

The months with the most rainfall are October and December, with an average 3.03" (77mm) of precipitation.

What is the month with the shortest days in Greenfield?

December has the shortest days of the year in Greenfield, Massachusetts, with an average of 9h and 6min of daylight.

Average temperature
Greenfield, MA

Average temperature - Greenfield, MA

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.5°F).

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

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Average pressure
Greenfield, MA

Average pressure - Greenfield, 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).

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Average wind speed
Greenfield, MA

Average wind speed - Greenfield, MA

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average rainfall
Greenfield, MA

Average rainfall - Greenfield, MA

The wettest months (with the highest rainfall) are October and December (3.03").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days
Greenfield, MA

Average rainfall days - Greenfield, MA

The months with the highest number of rainy days are May and July (16.3 days).
The month with the least rainy days is January (8.4 days).

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Average snowfall
Greenfield, MA

Average snowfall - Greenfield, MA

The month with the highest snowfall is February (7.01").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Greenfield, MA

Average snowfall days - Greenfield, MA

The month with the highest number of snowfall days is February (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Greenfield, MA

Average daylight / Average sunshine - Greenfield, MA

The month with the longest days is June (Average daylight: 15h and 18min).
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 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days
Greenfield, MA

Average sunshine days - Greenfield, MA

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index
Greenfield, MA

Average UV index - Greenfield, MA

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average visibility
Greenfield, MA

Average visibility - Greenfield, MA

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

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Greenfield, Massachusetts, USA

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