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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Acton, Massachusetts, is an icy winter month, with an average temperature ranging between min 20.1°F (-6.6°C) and max 32.5°F (0.3°C). Acton, Massachusetts, experiences its lowest average temperatures in January, reaching a peak of 32.5°F (0.3°C) and a minimum of 20.1°F (-6.6°C). Weather in January »
Weather in February
February, the last month of the winter in Acton, is also an icy month, with temperature in the range of an average low of 21°F (-6.1°C) and an average high of 35.2°F (1.8°C). The transition into February marks the average high-temperature at a still wintry 35.2°F (1.8°C), differing minimally from January's 32.5°F (0.3°C). Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Acton, Massachusetts, with an average temperature ranging between min 28.9°F (-1.7°C) and max 43°F (6.1°C). March marks a minor ascent in the average high-temperature, adjusting from February's cold 35.2°F (1.8°C) to a frosty 43°F (6.1°C). Weather in March »
Weather in April
April in Acton, Massachusetts, is a moderate spring month, with an average temperature fluctuating between 39°F (3.9°C) and 55.9°F (13.3°C). The start of April signals an increase in the average high-temperature, moving from a frosty 43°F (6.1°C) in March to a mild 55.9°F (13.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in Acton, Massachusetts, with an average temperature varying between 48.7°F (9.3°C) and 67.5°F (19.7°C). In May, the meteorological conditions change with the average high-temperature moving from a moderate 55.9°F (13.3°C) in April to an enjoyable 67.5°F (19.7°C). Weather in May »
Weather in June
June, the first month of the summer in Acton, is a warm month, with an average temperature varying between 56.5°F (13.6°C) and 75.6°F (24.2°C). A slight uplift of average high-temperatures is noted in June, with temperatures adjusting from a refreshing 67.5°F (19.7°C) in May to a moderately hot 75.6°F (24.2°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Acton, Massachusetts, with an average temperature ranging between min 63.3°F (17.4°C) and max 82.4°F (28°C). July is the month when Acton sees the highest average temperatures, with a high of 82.4°F (28°C) and a low of 63.3°F (17.4°C). July's heat index is appraised at a tropical 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Acton, is also a moderately hot month, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 62.1°F (16.7°C). During August, Acton observes a subtle ascent to a still warm 81°F (27.2°C) from July's 82.4°F (28°C) in the average high-temperature. Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in Acton, Massachusetts, with an average temperature ranging between max 72.9°F (22.7°C) and min 55.6°F (13.1°C). September's arrival signals a moderate reduction in the average high-temperature, easing from a moderately hot 81°F (27.2°C) in August to an agreeable 72.9°F (22.7°C). Weather in September »
Weather in October
October, the same as September, in Acton, Massachusetts, is another refreshing autumn month, with an average temperature varying between 46°F (7.8°C) and 60.1°F (15.6°C). With October's arrival, Acton sees a decrease in average high-temperatures, moving from an agreeable 72.9°F (22.7°C) in September to a mild 60.1°F (15.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Acton, is another chilly month, with an average temperature ranging between min 35.4°F (1.9°C) and max 48.6°F (9.2°C). The onset of November results in a decrease in the average high-temperature, receding from a mild 60.1°F (15.6°C) in October to a chilly 48.6°F (9.2°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Acton, Massachusetts, with an average temperature varying between 27.3°F (-2.6°C) and 38.3°F (3.5°C). Acton's December weather features a mild decline in high-temperatures, reducing from a frosty 48.6°F (9.2°C) in November to an icy 38.3°F (3.5°C). Weather in December »
[Resources]Frequently asked questions
What part of the year is the coldest in Acton?
January is the coldest month of the year, registering average temperatures as high as 32.5°F (0.3°C) and as low as 20.1°F (-6.6°C).
How much does it rain in Acton?
Throughout the year, in Acton, Massachusetts, there are 116.3 rainfall days, and 15.87" (403mm) of precipitation is accumulated.
When does it snow in Acton?
Months with snowfall are January through May, October through December.
How many days does it snow in Acton?
In Acton, Massachusetts, during the entire year, snow falls for 25.5 days and aggregates up to 11.42" (290mm) of snow.
What are the months with the lowest UV index in Acton?
The months with the lowest UV index in Acton are January through March, November and December, with an average maximum UV index of 2.
What is the most humid month in Acton?
The most humid month in Acton is February, with an average relative humidity of 79%.
When does it snow the most in Acton?
The month with the most snowfall in Acton is February, when snow falls for 5.9 days and typically aggregates up to 2.87" (73mm) of snow.
What is the month with the least sunshine in Acton?
February has the least sunshine of the year in Acton, with an average of 4.5h of sunshine.
When is Daylight Saving Time (DST) in Acton?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Acton, Massachusetts, 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 Acton?
The least humid month is April, with an average relative humidity of 70%.
When it does not snow in Acton?
June through September are months without snowfall in Acton, Massachusetts.
When are the longest days in Acton?
The month with the longest days in Acton, Massachusetts, is June, with an average of 15h and 12min of daylight.
When is the highest UV index in Acton?
June through August, with an average maximum UV index of 6, are months with the highest UV index in Acton.
What month is the hottest in Acton?
The highest temperatures in Acton are recorded in July, with averages reaching a high of 82.4°F (28°C) and a low of 63.3°F (17.4°C).
What month has the most sunshine in Acton?
The month with the most sunshine in Acton is August, with an average of 10.3h of sunshine.
What is the driest month in Acton?
The month with the least rainfall in Acton is September, when the rain falls for 8.6 days and typically collects 0.79" (20mm) of precipitation.
What is the wettest month in Acton?
October is the month with the most rainfall. Rain falls for 10.6 days and accumulates 1.65" (42mm) of precipitation.
What is the month with the shortest days in Acton?
The month with the shortest days is December, with an average of 9h and 6min of daylight.
Average temperature
Acton, MA
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32.5°F).
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure
Acton, 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"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.03"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Acton, MA
- Average wind speed in January:
8.6mph - Average wind speed in February:
8.5mph - Average wind speed in March:
8.4mph - Average wind speed in April:
8mph - Average wind speed in May:
6.7mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.5mph - Average wind speed in September:
6mph - Average wind speed in October:
7.1mph - Average wind speed in November:
7.6mph - Average wind speed in December:
8.2mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity
Acton, MA
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (70%).
Average rainfall
Acton, MA
- Average rainfall in January:
1.18" - Average rainfall in February:
1.06" - Average rainfall in March:
1.46" - Average rainfall in April:
1.61" - Average rainfall in May:
1.22" - Average rainfall in June:
1.54"
- Average rainfall in July:
1.3" - Average rainfall in August:
1.18" - Average rainfall in September:
0.79" - Average rainfall in October:
1.65" - Average rainfall in November:
1.54" - Average rainfall in December:
1.34"
The wettest month (with the highest rainfall) is October (1.65").
The driest month (with the least rainfall) is September (0.79").
Average rainfall days
Acton, MA
- Average rainfall days in January:
5.5 days - Average rainfall days in February:
5.4 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
11.9 days - Average rainfall days in May:
12.8 days - Average rainfall days in June:
12.5 days
- Average rainfall days in July:
13.2 days - Average rainfall days in August:
11.3 days - Average rainfall days in September:
8.6 days - Average rainfall days in October:
10.6 days - Average rainfall days in November:
8.2 days - Average rainfall days in December:
7.5 days
The month with the highest number of rainy days is July (13.2 days).
The month with the least rainy days is February (5.4 days).
Average snowfall
Acton, MA
- Average snowfall in January:
2.05" - Average snowfall in February:
2.87" - Average snowfall in March:
2.44" - Average snowfall in April:
1.18" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (2.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Acton, MA
- Average snowfall days in January:
6.4 days - Average snowfall days in February:
5.9 days - Average snowfall days in March:
6.3 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:
0.1 days - Average snowfall days in November:
1.2 days - Average snowfall days in December:
4.2 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Acton, MA
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
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 0min - Average sunshine in February:
4h and 3min - Average sunshine in March:
5h and 4min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 2min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days
Acton, MA
- Average sunshine days in January:
19.4 days - Average sunshine days in February:
17.1 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
15.8 days - Average sunshine days in May:
16.4 days - Average sunshine days in June:
16.1 days
- Average sunshine days in July:
16.2 days - Average sunshine days in August:
17.6 days - Average sunshine days in September:
19.4 days - Average sunshine days in October:
18 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
19.1 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is April (15.8 days).
Average UV index
Acton, 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
Acton, MA
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Acton, MA
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
Acton, Massachusetts, USA
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