Climate and monthly weather forecastAllston, MA
Climate and monthly weather forecast
Weather in January
January, like December, in Allston, Massachusetts, is another cold winter month, with an average temperature ranging between max 33.8°F (1°C) and min 22.5°F (-5.3°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 33.8°F (1°C) and a low of 22.5°F (-5.3°C). Weather in January »Weather in February
February, the last month of the winter in Allston, is another cold month, with an average temperature varying between 23.4°F (-4.8°C) and 36.5°F (2.5°C). Stepping into February, Allston records an average high-temperature of a still cold 36.5°F (2.5°C), almost consistent with January. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Allston, Massachusetts, with an average temperature ranging between max 43.3°F (6.3°C) and min 30.6°F (-0.8°C). As Allston transitions into March, the average high-temperature is observed to slightly rise from a cold 36.5°F (2.5°C) in February to a frosty 43.3°F (6.3°C). Weather in March »Weather in April
April is a refreshing spring month in Allston, Massachusetts, with an average temperature fluctuating between 40.1°F (4.5°C) and 55.6°F (13.1°C). April brings a temperature increase, with average high-temperatures moving from March's frosty 43.3°F (6.3°C) to a mild 55.6°F (13.1°C). Weather in April »Weather in May
May, the last month of the spring in Allston, is a refreshing month, with an average temperature varying between 49.8°F (9.9°C) and 66.7°F (19.3°C). Allston's weather shows a temperature rise with the arrival of May, moving from a moderate 55.6°F (13.1°C) in April to a still refreshing 66.7°F (19.3°C). Weather in May »Weather in June
June, the first month of the summer in Allston, is a warm month, with an average temperature varying between 74.5°F (23.6°C) and 57.4°F (14.1°C). June's arrival coincides with a subtle temperature rise, moving from May's enjoyable 66.7°F (19.3°C) to a moderately hot 74.5°F (23.6°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Allston, Massachusetts, with an average temperature varying between 64.6°F (18.1°C) and 81.9°F (27.7°C). The warmest month is July, with an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 64.6°F (18.1°C). July's mean heat index is calculated to be a tropical 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Allston, Massachusetts, with temperature in the range of an average low of 63.5°F (17.5°C) and an average high of 80.4°F (26.9°C). Welcoming August, Allston notes an average high-temperature of a still moderately hot 80.4°F (26.9°C), nearly consistent with July's 81.9°F (27.7°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Allston, Massachusetts, with an average temperature fluctuating between 72.9°F (22.7°C) and 56.7°F (13.7°C). Allston in September undergoes a slight reduction in the average high-temperature, shifting from August's moderately hot 80.4°F (26.9°C) to a pleasant 72.9°F (22.7°C). Weather in September »Weather in October
October, like September, in Allston, Massachusetts, is another enjoyable autumn month, with temperature in the range of an average high of 61.2°F (16.2°C) and an average low of 47.7°F (8.7°C). Allston's progression into October includes a drop in the average high-temperature, from a pleasant 72.9°F (22.7°C) in September to a comfortable 61.2°F (16.2°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Allston, Massachusetts, with an average temperature fluctuating between 37.4°F (3°C) and 49.5°F (9.7°C). November's onset brings a reduction in the average high-temperature, from a refreshing 61.2°F (16.2°C) in October to a chilly 49.5°F (9.7°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Allston, Massachusetts, with an average temperature ranging between min 29.3°F (-1.5°C) and max 39.6°F (4.2°C). The onset of December entails a temperature shift, as the average high-temperature decreases from a frosty 49.5°F (9.7°C) in November to a wintry 39.6°F (4.2°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Allston, MA
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.8°F).
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure
Allston, MA
- Average pressure in January:
30.01"Hg - Average pressure in February:
29.99"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Allston, MA
- Average wind speed in January:
9.5mph - Average wind speed in February:
9.3mph - Average wind speed in March:
9.1mph - Average wind speed in April:
8.5mph - Average wind speed in May:
7.2mph - Average wind speed in June:
6.6mph
- Average wind speed in July:
6.1mph - Average wind speed in August:
6mph - Average wind speed in September:
6.6mph - Average wind speed in October:
7.9mph - Average wind speed in November:
8.5mph - Average wind speed in December:
9mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity
Allston, MA
The months with the highest relative humidity are January and February (77%).
The month with the lowest relative humidity is April (69%).
Average rainfall
Allston, MA
- Average rainfall in January:
0.39" - Average rainfall in February:
0.39" - Average rainfall in March:
0.43" - Average rainfall in April:
0.59" - Average rainfall in May:
0.43" - Average rainfall in June:
0.51"
- Average rainfall in July:
0.47" - Average rainfall in August:
0.39" - Average rainfall in September:
0.2" - Average rainfall in October:
0.51" - Average rainfall in November:
0.63" - Average rainfall in December:
0.55"
The wettest month (with the highest rainfall) is November (0.63").
The driest month (with the least rainfall) is September (0.2").
Average rainfall days
Allston, MA
- Average rainfall days in January:
4.3 days - Average rainfall days in February:
4.8 days - Average rainfall days in March:
6.8 days - Average rainfall days in April:
9.1 days - Average rainfall days in May:
7.8 days - Average rainfall days in June:
8.8 days
- Average rainfall days in July:
9.6 days - Average rainfall days in August:
7.9 days - Average rainfall days in September:
6.4 days - Average rainfall days in October:
6 days - Average rainfall days in November:
4.7 days - Average rainfall days in December:
5.6 days
The month with the highest number of rainy days is July (9.6 days).
The month with the least rainy days is January (4.3 days).
Average snowfall
Allston, MA
- Average snowfall in January:
0.35" - Average snowfall in February:
0.55" - Average snowfall in March:
0.63" - Average snowfall in April:
0.04" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is December (0.71").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Allston, MA
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
4.3 days - Average snowfall days in March:
3.8 days - Average snowfall days in April:
0.6 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 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
2.7 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Allston, 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:
5h and 48min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 12min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 30min - Average sunshine in September:
8h and 30min - Average sunshine in October:
6h and 6min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 54min
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
Allston, MA
- Average sunshine days in January:
23.5 days - Average sunshine days in February:
21.4 days - Average sunshine days in March:
20.6 days - Average sunshine days in April:
19.1 days - Average sunshine days in May:
19.4 days - Average sunshine days in June:
17.4 days
- Average sunshine days in July:
18 days - Average sunshine days in August:
19.8 days - Average sunshine days in September:
21.8 days - Average sunshine days in October:
22.6 days - Average sunshine days in November:
23.3 days - Average sunshine days in December:
23 days
The month with the most sunshine days is January (23.5 days).
The month with the least sunshine days is June (17.4 days).
Average UV index
Allston, 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 cloud cover
Allston, MA
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Allston, 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).





