Climate and monthly weather forecastAmherst, MA
Climate and monthly weather forecast
The climate of Amherst
Amherst, Massachusetts, USA falls under the Humid continental zone according to the Köppen climate classification. This zone is identified as Dfb, suggesting no dry season and warm summers. Geographically positioned in the uptown region of Massachusetts, Amherst experiences a fairly balanced climatic condition with respect to humidity levels and rainfall.Throughout the year, temperatures fluctuate significantly, with the highest average showing up around 82°F (27.8°C) in July, and plunging to as low as 18.1°F (-7.7°C) in January. This pattern doesn't suggest an even spread of warmth, instead it underlines alternating periods of cold and hot weather. The humidity mirrors this pattern to a slight extent, with relative humidity ranging from 72% in April to 80% or more in January and December.
The town sees a fair amount of precipitation and rainfall all year round, with the highest accumulation of about 2.87" (73mm) happening in December. The frequency of rainfall days occurs in April and May with 14.5 days and 13.8 days respectively. Additionally, Snowfall is not a stranger to Amherst either, with significant readings of snow accumulation from January to March and again in December.
The best time to visit Amherst
The best period to visit Amherst would be between late May and September. This period is marked by mild temperatures ranging from a high of 67.8°F (19.9°C) to 82°F (27.8°C). Combined with relative humidity from 74% to 75% and long daylight hours - with a peak of 15.2 hours in June, it offers ample time for outdoor activities. Also, this period is the most favored as the town experiences the most sunshine hours, reaching a maximum of 10.3 hours in July and August.The worst time to visit Amherst
The period extending from December to February would be less favored for visiting Amherst. This is mainly due to the considerably low temperatures, dropping to a biting 18.1°F (-7.7°C) in January. Added to this, snowfall is substantial during these months, with average depths reaching as high as 6.14" (156mm) in February. The reduced daylight hours, with the shortest day occurring in December at 9.1 hours, constricts the potential for outdoor activities.Spring Weather in Amherst
The Spring season in Amherst can be identified between March and May. During this period, the average high temperatures progressively increase from 41.9°F (5.5°C) to 67.8°F (19.9°C), and the lows rise from 27°F (-2.8°C) to 47.3°F (8.5°C). Relative humidity sees a slight decrease to 72% in April before inclining to 74% in May. Precipitation during the spring months is relatively high, with the largest amount of rainfall recorded in April, amassing up to 2.32" (59mm) over 14.1 days.Summer Weather in Amherst
Summer in Amherst spans from June to August, identified by increased temperature highs of 75.2°F (24°C) to 82°F (27.8°C) and lows of 54.5°F (12.5°C) to 60.8°F (16°C). This period sees an average relative humidity of 75%, rainfall of about 2.24" (57mm) in June, decreasing to 1.89" (48mm) by August. Sunshine is abundant during these months, reaching up to a generous 10.3 hours in July and August, providing plenty of opportunity for summer activities.Autumn Weather in Amherst
Autumn in Amherst, running from September to November, is marked by a progressive decrease in temperatures, with highs dropping from 72.5°F (22.5°C) to 47.3°F (8.5°C), and lows from 52.9°F (11.6°C) down to 33.1°F (0.6°C). Rainfall sees a sharp increase in October, accumulating up to 2.83" (72mm). The relative humidity remains quite consistent hovering around 79%, while daylight and sunshine hours slowly reduce, reaching their minimums of 9.8 hours and 5.7 hours respectively by November.Winter Weather in Amherst
The winter months in Amherst from December to February, are significantly cold, with temperature highs attending to average around 30.6°F (-0.8°C) to 41.9°F (5.5°C), and lows dropping to serious chilliness, from 25.3°F (-3.7°C) to 27°F (-2.8°C). Snowfall becomes substantial, peaking in February with an accumulation of 6.14" (156mm). Relative humidity increases to 80% during December and January, and sunlight hours are scarce, bottoming out at 9.1 hours in December.Weather in January
In Amherst, Massachusetts, the weather in January signifies the heart of winter with its characteristic cold. Notably, lows average at 18.1°F (-7.7°C) and ice can blanket everything after a precipitous fall of snow reaching up to 4.65in. Weather in January »Weather in February
Moving to February, the temperatures in Amherst stay very similar to January's, continuing the prevailing cold weather. It is the season when snowfall is at its densest, averaging 6.14in. Embraced by the silver hue of the snow, the city portrays a serene, picturesque scene. Weather in February »Weather in March
As March arrives, the city sees an increase in temperature providing a noticeable departure from frozen February. The highest average rainfall registers during this month, with 2.24in reduces the percentage of snow-covered days. The city starts to breathe a sigh of relief as the brutal winter starts to wind down. Weather in March »Weather in April
April sees the true onset of spring in Amherst, with a leap in temperatures and sunshine hours. The average temperature scales up to 55.6°F (13.1°C), representing a conspicuous change from the lingering March chill. It is a delightful month for outdoor activities like picnics and nature walks. Weather in April »Weather in May
The pleasant weather continues into May, characterized by a rise in temperatures and prolonged daylight hours. Sunshine graces the city for approximately 14.6 hours a day, inviting residents outside to enjoy. The city is bustling; parks and trails become filled with people taking advantage of the pleasant conditions. Weather in May »Weather in June
June rings in true summer in Amherst, witnessing the year's highest average temperatures at 75.2°F (24°C). The weather now caters to different summer activities, making outdoor celebrations a norm. Weekends find people flocking to nearby spots for camping, hiking, or just picnicking in the beautiful surroundings. Weather in June »Weather in July
July in Amherst holds the record for the hottest temperatures, averaging at 82°F (27.8°C). The city's green spaces are in their prime, thanks to the consistent sunshine. Despite occasional summer storms, residents favor the outdoors, participating in various recreational activities. Weather in July »Weather in August
Entering August, Amherst sees a slight dip in temperatures, yet continues its warm summer trend. Temperatures hover around 80.1°F (26.7°C), providing more comfort and reducing the intense summer swelter. As summer winds down, it's the perfect time for backyard barbecues, movie nights, and countryside visits. Weather in August »Weather in September
With the arrival of September, the weather begins to cool down marking the onset of autumn. As the weather changes, the city dons a palette of warm hues, signaling the turning of the leaves. Outdoor enthusiasts can explore hiking trails experiencing the colorful transformation of the landscape. Weather in September »Weather in October
October in Amherst is synonymous with glorious fall colors and an awakening chill. The resounding fall of rain averages at a hefty 2.83in, the highest in the year, enriching the colors of fall. The month also sees a considerable decrease in temperatures indicating the approaching winter. Weather in October »Weather in November
With the departure of fall, November brings a significant shift in climate. A thin layer of snow starts to mark the beginning of winter, averaging at around 1.02in. Preparations for the upcoming holiday season begin in earnest, lighting up the city in festive splendor. Weather in November »Weather in December
Finally, December encapsulates winters in Amherst, Massachusetts, with an average low temperature of 25.3°F (-3.7°C). A significant amount of snow, 3.94in on average, shrouds the city in a white blanket, setting the stage for a postcard-worthy winter season. Weather in December »Updated: Jul 15, 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
January, with an average high of 30.6°F (-0.8°C) and a low of 18.1°F (-7.7°C), signifies the coldest month of the year in Amherst.
Throughout the year, there are 141.3 rainfall days, and 27.05" (687mm) of precipitation is accumulated.
Months with snowfall are January through May, October through December.
In Amherst, during the entire year, snow falls for 38.2 days and aggregates up to 21.42" (544mm) of snow.
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2.
The most humid month is February, with an average relative humidity of 82%.
February is the month with the most snowfall. Snow falls for 10.2 days and accumulates 6.14" (156mm) of snow.
February has the least sunshine of the year in Amherst, with an average of 4.7h of sunshine.
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 72%.
In Amherst, Massachusetts, snow does not fall in June through September.
With an average of 15h and 12min of daylight, June has the longest days of the year.
The months with the highest UV index in Amherst, Massachusetts, are June through August, with an average maximum UV index of 6.
July is the warmest month of the year, registering average temperatures as high as 82°F (27.8°C) and as low as 60.8°F (16°C).
July and August, with an average of 10.3h of sunshine, are months with the most sunshine.
The month with the least rainfall is September, when the rain falls for 10.7 days and typically collects 1.57" (40mm) of precipitation.
December is the month with the most rainfall. Rain falls for 10.7 days and accumulates 2.87" (73mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 6min of daylight.
Average temperature
Amherst, MA
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (30.6°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 (18.1°F).
Average pressure
Amherst, 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:
29.95"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
Amherst, MA
- Average wind speed in January:
7.8mph - Average wind speed in February:
7.8mph - Average wind speed in March:
7.8mph - 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:
5.1mph - 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:
6.9mph - Average wind speed in December:
7.5mph
The windiest months (with the highest average wind speed) are January, February and March (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity
Amherst, MA
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (72%).
Average rainfall
Amherst, MA
- Average rainfall in January:
2.17" - Average rainfall in February:
2.13" - Average rainfall in March:
2.24" - Average rainfall in April:
2.32" - Average rainfall in May:
2.13" - Average rainfall in June:
2.24"
- Average rainfall in July:
2.09" - Average rainfall in August:
1.89" - Average rainfall in September:
1.57" - Average rainfall in October:
2.83" - Average rainfall in November:
2.56" - Average rainfall in December:
2.87"
The wettest month (with the highest rainfall) is December (2.87").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days
Amherst, MA
- Average rainfall days in January:
8.4 days - Average rainfall days in February:
8.5 days - Average rainfall days in March:
10.8 days - Average rainfall days in April:
14.1 days - Average rainfall days in May:
14.5 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
14 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
13.1 days - Average rainfall days in November:
9.9 days - Average rainfall days in December:
10.7 days
The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is January (8.4 days).
Average snowfall
Amherst, MA
- Average snowfall in January:
4.65" - Average snowfall in February:
6.14" - Average snowfall in March:
4.02" - Average snowfall in April:
0.94" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.14").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Amherst, MA
- Average snowfall days in January:
9.4 days - Average snowfall days in February:
10.2 days - Average snowfall days in March:
7.8 days - Average snowfall days in April:
1.3 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:
2.4 days - Average snowfall days in December:
6.5 days
The month with the highest number of snowfall days is February (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Amherst, 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 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - 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 12min).
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 42min - Average sunshine in March:
6h and 6min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 18min - 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Amherst, MA
- Average sunshine days in January:
16.9 days - Average sunshine days in February:
14 days - Average sunshine days in March:
13.6 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
15 days - Average sunshine days in June:
14 days
- Average sunshine days in July:
14.9 days - Average sunshine days in August:
15.4 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
14.8 days - Average sunshine days in November:
17.2 days - Average sunshine days in December:
16.2 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is March (13.6 days).
Average UV index
Amherst, 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, October, November and December (UV index 2).
Average cloud cover
Amherst, MA
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Amherst, 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).
