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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, the same as December, is another cold winter month in Holliston, Massachusetts, with an average temperature fluctuating between 21°F (-6.1°C) and 33.1°F (0.6°C). The month of January sees the lowest average temperatures, reaching 33.1°F (0.6°C) at the peak and 21°F (-6.1°C) at the low. Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in Holliston, Massachusetts, with an average temperature ranging between min 21.7°F (-5.7°C) and max 36.1°F (2.3°C). February's climate shows a minor adjustment in average high-temperatures to a still icy 36.1°F (2.3°C) from January's 33.1°F (0.6°C). Weather in February »
Weather in March
March, the first month of the spring in Holliston, is a chilly month, with an average temperature varying between 43.5°F (6.4°C) and 28.9°F (-1.7°C). March introduces a marginal temperature uplift, with average high-temperatures adjusting from February's cold 36.1°F (2.3°C) to a frosty 43.5°F (6.4°C). Weather in March »
Weather in April
April is a mild spring month in Holliston, Massachusetts, with an average temperature ranging between min 39.2°F (4°C) and max 56.1°F (13.4°C). April indicates a change in the average high-temperature, moving up from a frosty 43.5°F (6.4°C) in March to a refreshing 56.1°F (13.4°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Holliston, Massachusetts, with temperature in the range of an average low of 48.9°F (9.4°C) and an average high of 67.3°F (19.6°C). Holliston's transition into May brings a rise in the average high-temperature, moving from a mild 56.1°F (13.4°C) in April to a comfortable 67.3°F (19.6°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Holliston, Massachusetts, with an average temperature fluctuating between 56.5°F (13.6°C) and 75.2°F (24°C). Holliston's transition into June sees a mild rise in the average high-temperature, edging from a comfortable 67.3°F (19.6°C) in May to a moderately hot 75.2°F (24°C). Weather in June »
Weather in July
July, like June, in Holliston, Massachusetts, is another warm summer month, with an average temperature fluctuating between 82.4°F (28°C) and 63.1°F (17.3°C). July registers as the month with the highest average temperatures, reaching 82.4°F (28°C) at its peak and 63.1°F (17.3°C) at the lowest. July's mean heat index is appraised at a hot 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Holliston, Massachusetts, with an average temperature varying between 81°F (27.2°C) and 61.9°F (16.6°C). Holliston's weather in August, with an average high-temperature of a still warm 81°F (27.2°C), subtly shifts from July's 82.4°F (28°C). Weather in August »
Weather in September
September, the first month of the autumn in Holliston, is still a pleasant month, with an average temperature fluctuating between 73.2°F (22.9°C) and 55.6°F (13.1°C). The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's warm 81°F (27.2°C) to a pleasant 73.2°F (22.9°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Holliston, Massachusetts, with an average temperature fluctuating between 60.8°F (16°C) and 46.2°F (7.9°C). Onset of October comes with a temperature decline, the average high falling from an agreeable 73.2°F (22.9°C) in September to an enjoyable 60.8°F (16°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Holliston, Massachusetts, with an average temperature ranging between max 49.1°F (9.5°C) and min 35.8°F (2.1°C). In Holliston, the average high-temperature in November drops from a refreshing 60.8°F (16°C) in October to a frosty 49.1°F (9.5°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Holliston, Massachusetts, with temperature in the range of an average low of 28°F (-2.2°C) and an average high of 39°F (3.9°C). The decrease of average high-temperatures is mild in December, with a decline from a chilly 49.1°F (9.5°C) in November to a cold 39°F (3.9°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Holliston?
January, noted for its average high-temperature of 33.1°F (0.6°C) and an average low-temperature of 21°F (-6.1°C), is considered the coldest month in Holliston.
How much does it rain in Holliston?
In Holliston, during the entire year, the rain falls for 157.5 days and collects up to 29.53" (750mm) of precipitation.
When does it snow in Holliston?
Months with snowfall are January through May, October through December.
How many days does it snow in Holliston?
In Holliston, Massachusetts, during the entire year, snow falls for 28.8 days and aggregates up to 17.32" (440mm) of snow.
When is the lowest UV index in Holliston?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
What is the most humid month in Holliston?
The most humid month in Holliston is February, with an average relative humidity of 79%.
When does it snow the most in Holliston?
The month with the most snowfall in Holliston, Massachusetts, is February, when snow falls for 7.8 days and typically aggregates up to 4.61" (117mm) of snow.
What is the month with the least sunshine in Holliston?
With an average of 4.7h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST) in Holliston?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Holliston, 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 Holliston?
April is the least humid month in Holliston, Massachusetts, with an average relative humidity of 70%.
What is the rainiest month in Holliston?
April is the month with the most rainfall. Rain falls for 14.6 days and accumulates 2.87" (73mm) of precipitation.
When it does not snow in Holliston?
June through September are months without snowfall in Holliston, Massachusetts.
When are the longest days in Holliston?
June has the longest days of the year in Holliston, Massachusetts, with an average of 15h and 12min of daylight.
What are the months with the highest UV index in Holliston?
The months with the highest UV index in Holliston, Massachusetts, are June through August, with an average maximum UV index of 6.
What time of the year is the hottest in Holliston?
July, characterized by an average high temperature of 82.4°F (28°C) and a low temperature of 63.1°F (17.3°C), is generally the warmest month.
What month has the most sunshine in Holliston?
The month with the most sunshine is August, with an average of 10.4h of sunshine.
What is the driest month in Holliston?
September is the month with the least rainfall in Holliston, Massachusetts. Rain falls for 12.6 days and accumulates 1.54" (39mm) of precipitation.
What is the month with the shortest days in Holliston?
December has the shortest days of the year in Holliston, Massachusetts, with an average of 9h and 12min of daylight.
Average temperature
Holliston, 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 (33.1°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure
Holliston, 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:
29.95"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:
30.07"Hg - Average pressure in December:
30.04"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Holliston, MA
- Average wind speed in January:
8.8mph - Average wind speed in February:
8.7mph - Average wind speed in March:
8.6mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.9mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.1mph - Average wind speed in October:
7.3mph - Average wind speed in November:
7.7mph - Average wind speed in December:
8.2mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity
Holliston, MA
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (70%).
Average rainfall
Holliston, MA
- Average rainfall in January:
2.24" - Average rainfall in February:
2.2" - Average rainfall in March:
2.56" - Average rainfall in April:
2.87" - Average rainfall in May:
2.32" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.52" - Average rainfall in August:
2.4" - Average rainfall in September:
1.54" - Average rainfall in October:
2.64" - Average rainfall in November:
2.72" - Average rainfall in December:
2.83"
The wettest month (with the highest rainfall) is April (2.87").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days
Holliston, MA
- Average rainfall days in January:
7.5 days - Average rainfall days in February:
8.4 days - Average rainfall days in March:
11.8 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
18.4 days - Average rainfall days in August:
15.2 days - Average rainfall days in September:
12.6 days - Average rainfall days in October:
14.6 days - Average rainfall days in November:
10.3 days - Average rainfall days in December:
10.1 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is January (7.5 days).
Average snowfall
Holliston, MA
The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Holliston, MA
- Average snowfall days in January:
7.1 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
6.6 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:
1.1 days - Average snowfall days in December:
4.7 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Holliston, 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 1min - 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 12min).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
4h and 4min - Average sunshine in March:
5h and 5min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 3min - 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 3min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 3min - Average sunshine in December:
5h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Holliston, MA
- Average sunshine days in January:
17.5 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
15.2 days - Average sunshine days in April:
12.9 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
11 days
- Average sunshine days in July:
11.3 days - Average sunshine days in August:
13 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
14.5 days - Average sunshine days in November:
17.6 days - Average sunshine days in December:
16 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is June (11 days).
Average UV index
Holliston, 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
Holliston, MA
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Holliston, MA
The months with the highest visibility are January, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are February, August and September (5mi).
Holliston, Massachusetts, USA
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