Climate and monthly weather forecastGreenfield, MA
Climate and monthly weather forecast
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
November, the last month of the autumn in Greenfield, is also a frosty month, with temperature in the range of an average low of 32.4°F (0.2°C) and an average high of 45.9°F (7.7°C). The onset of November is marked by a decrease in temperature, transitioning from a refreshing 58.1°F (14.5°C) in October to a frosty 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 »Updated: Aug 5, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Greenfield witnesses the coldest weather in January, with temperatures averaging a high of 29.5°F (-1.4°C) and a low of 16.5°F (-8.6°C).
In Greenfield, Massachusetts, during the entire year, the rain falls for 158.8 days and collects up to 30" (762mm) of precipitation.
January through May, October through December are months with snowfall.
In Greenfield, during the entire year, snow falls for 42.1 days and aggregates up to 24.53" (623mm) of snow.
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2.
February is the most humid month, with an average relative humidity of 83%.
The month with the most snowfall is February, when snow falls for 10.4 days and typically aggregates up to 7.01" (178mm) of snow.
With an average of 4.5h of sunshine, February has the least sunshine of the year.
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.
April is the least humid month, with an average relative humidity of 73%.
The months with the highest UV index are May through August, with an average maximum UV index of 5.
In Greenfield, snow does not fall in June through September.
The month with the longest days is June, with an average of 15h and 18min of daylight.
In Greenfield, July is the month with the highest recorded average temperatures, measuring a high of 81.1°F (27.3°C) and a low of 59.2°F (15.1°C).
The months with the most sunshine are July and August, with an average of 10.2h of sunshine.
September is the month with the least rainfall. Rain falls for 11.7 days and accumulates 1.93" (49mm) of precipitation.
The months with the most rainfall are October and December, with an average 3.03" (77mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 6min of daylight.
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).
Average pressure
Greenfield, MA
- Average pressure in January:
30.03"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.05"Hg
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
Greenfield, MA
- Average wind speed in January:
7.9mph - Average wind speed in February:
7.9mph - Average wind speed in March:
8mph - Average wind speed in April:
7.6mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.5mph - Average wind speed in November:
7mph - Average wind speed in December:
7.5mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity
Greenfield, MA
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).
Average rainfall
Greenfield, MA
- Average rainfall in January:
2.28" - Average rainfall in February:
2.32" - Average rainfall in March:
2.32" - Average rainfall in April:
2.52" - Average rainfall in May:
2.48" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.52" - Average rainfall in August:
2.17" - Average rainfall in September:
1.93" - Average rainfall in October:
3.03" - Average rainfall in November:
2.72" - Average rainfall in December:
3.03"
The wettest months (with the highest rainfall) are October and December (3.03").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days
Greenfield, MA
- Average rainfall days in January:
8.4 days - Average rainfall days in February:
8.7 days - Average rainfall days in March:
13 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
15.4 days - Average rainfall days in September:
11.7 days - Average rainfall days in October:
14.5 days - Average rainfall days in November:
11.3 days - Average rainfall days in December:
11.9 days
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).
Average snowfall
Greenfield, MA
- Average snowfall in January:
5.75" - Average snowfall in February:
7.01" - Average snowfall in March:
3.74" - Average snowfall in April:
1.1" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is February (7.01").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Greenfield, MA
- Average snowfall days in January:
10.3 days - Average snowfall days in February:
10.4 days - Average snowfall days in March:
9 days - Average snowfall days in April:
1.6 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.5 days - Average snowfall days in November:
2.7 days - Average snowfall days in December:
7.5 days
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).
Average daylight / Average sunshine
Greenfield, MA
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 18min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 6min
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).
- Average sunshine in January:
5h and 12min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 0min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 0min
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).
Average sunshine days
Greenfield, MA
- Average sunshine days in January:
16.1 days - Average sunshine days in February:
12.6 days - Average sunshine days in March:
12.4 days - Average sunshine days in April:
11.4 days - Average sunshine days in May:
11.7 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
12.2 days - Average sunshine days in August:
12.3 days - Average sunshine days in September:
14.2 days - Average sunshine days in October:
13.9 days - Average sunshine days in November:
16.5 days - Average sunshine days in December:
15.2 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is June (10.8 days).
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).
Average cloud cover
Greenfield, MA
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).
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).
