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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 Westford, Massachusetts, is an icy winter month, with temperature in the range of an average low of 19.8°F (-6.8°C) and an average high of 32°F (0°C). January, marked by an average high-temperature of 32°F (0°C) and a low-temperature of 19.8°F (-6.8°C), is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Westford, Massachusetts, with an average temperature varying between 35.1°F (1.7°C) and 20.7°F (-6.3°C). In February, Westford's weather conditions record an average high-temperature of a still wintry 35.1°F (1.7°C), demonstrating little divergence from the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Westford, is also an icy month, with an average temperature varying between 42.4°F (5.8°C) and 28.8°F (-1.8°C). With the onset of March, the average high-temperature subtly transitions from an icy 35.1°F (1.7°C) in February to a still wintry 42.4°F (5.8°C). Weather in March »
Weather in April
April is a refreshing spring month in Westford, Massachusetts, with an average temperature ranging between min 38.8°F (3.8°C) and max 55.9°F (13.3°C). Westford sees a rise in temperature during April, with average high-temperatures transitioning from a wintry 42.4°F (5.8°C) in March to a moderate 55.9°F (13.3°C). Weather in April »
Weather in May
May, the last month of the spring in Westford, is a refreshing month, with an average temperature fluctuating between 67.5°F (19.7°C) and 48.7°F (9.3°C). The rise of average high-temperatures is seen in May, with an increase from a moderate 55.9°F (13.3°C) in April to a still refreshing 67.5°F (19.7°C). Weather in May »
Weather in June
June, the first month of the summer in Westford, is a moderately hot month, with temperature in the range of an average high of 75.2°F (24°C) and an average low of 56.1°F (13.4°C). June introduces a minor temperature shift, with average high-temperatures adjusting from May's enjoyable 67.5°F (19.7°C) to a moderately hot 75.2°F (24°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Westford, Massachusetts, with an average temperature fluctuating between 63.1°F (17.3°C) and 82.2°F (27.9°C). In Westford, July is the month with the highest recorded average temperatures, measuring a high of 82.2°F (27.9°C) and a low of 63.1°F (17.3°C). The heat index in July is computed to be a tropical 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Westford, is another warm month, with an average temperature fluctuating between 61.9°F (16.6°C) and 80.4°F (26.9°C). The arrival of August sees an average high-temperature of a still moderately hot 80.4°F (26.9°C), hardly diverging from July's 82.2°F (27.9°C). Weather in August »
Weather in September
September, the first month of the autumn in Westford, is also an agreeable month, with an average temperature varying between 72.9°F (22.7°C) and 54.9°F (12.7°C). With September's onset, the weather reveals a slight temperature decrease, transitioning from a moderately hot 80.4°F (26.9°C) in August to a pleasant 72.9°F (22.7°C). Weather in September »
Weather in October
October, the same as September, in Westford, Massachusetts, is another mild autumn month, with temperature in the range of an average high of 59.9°F (15.5°C) and an average low of 45.5°F (7.5°C). Westford in October undergoes a mild reduction in the average high-temperature, shifting from September's agreeable 72.9°F (22.7°C) to a mild 59.9°F (15.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Westford, Massachusetts, with temperature in the range of an average high of 48°F (8.9°C) and an average low of 34.9°F (1.6°C). The beginning of November marks a decrease in the average high-temperature, transitioning from a moderate 59.9°F (15.5°C) in October to a frosty 48°F (8.9°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Westford, Massachusetts, with temperature in the range of an average low of 27°F (-2.8°C) and an average high of 37.9°F (3.3°C). December brings a decrease in the average high-temperature, falling from November's chilly 48°F (8.9°C) to a wintry 37.9°F (3.3°C). Weather in December »
Updated: Jun 4, 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
What is the coldest time of year?
January brings the lowest temperatures, with an average high of 32°F (0°C) and an average low of 19.8°F (-6.8°C).
How much does it rain?
In Westford, during the entire year, the rain falls for 140.4 days and collects up to 27.13" (689mm) of precipitation.
When does it snow?
Months with snowfall in Westford are January through May, October through December.
How many days does it snow?
In Westford, during the entire year, snow falls for 35.1 days and aggregates up to 24.88" (632mm) of snow.
When is the lowest UV index?
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?
February is the most humid month, with an average relative humidity of 80%.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 8.8 days and accumulates 6.57" (167mm) of snow.
What is the month with the least sunshine?
With an average of 4.7h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST)?
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.
What is the least humid month?
With an average relative humidity of 70%, April is the least humid month.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
The month with the longest days in Westford is June, with an average of 15h and 18min of daylight.
What are the months with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What is the hottest time of year?
Westford experiences its highest temperatures in July, with an average peak of 82.2°F (27.9°C) and a low of 63.1°F (17.3°C).
What month has the most sunshine in Westford?
August has the most sunshine of the year, with an average of 10.4h of sunshine.
What is the driest month?
September is the month with the least rainfall. Rain falls for 11.8 days and accumulates 1.46" (37mm) of precipitation.
What is the rainiest month?
December is the month with the most rainfall. Rain falls for 10.1 days and accumulates 2.72" (69mm) of precipitation.
What is the month with the shortest days?
With an average of 9h and 6min of daylight, December has the shortest days of the year.
Average temperature
Westford, MA
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32°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 (19.8°F).
Average pressure
Westford, 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
Westford, MA
- Average wind speed in January:
8.5mph - Average wind speed in February:
8.3mph - Average wind speed in March:
8.2mph - Average wind speed in April:
7.8mph - Average wind speed in May:
6.6mph - Average wind speed in June:
6mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.4mph - Average wind speed in September:
5.8mph - Average wind speed in October:
6.9mph - Average wind speed in November:
7.4mph - Average wind speed in December:
8mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity
Westford, MA
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (70%).
Average rainfall
Westford, MA
- Average rainfall in January:
2.09" - Average rainfall in February:
2.09" - Average rainfall in March:
2.52" - Average rainfall in April:
2.48" - Average rainfall in May:
2.01" - Average rainfall in June:
2.36"
The wettest month (with the highest rainfall) is December (2.72").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days
Westford, MA
- Average rainfall days in January:
6.6 days - Average rainfall days in February:
7 days - Average rainfall days in March:
10.3 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
15.1 days - Average rainfall days in June:
14.7 days
- Average rainfall days in July:
14.9 days - Average rainfall days in August:
13.5 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
12.9 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
10.1 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (6.6 days).
Average snowfall
Westford, MA
- Average snowfall in January:
4.49" - Average snowfall in February:
6.57" - Average snowfall in March:
5.24" - Average snowfall in April:
1.89" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Westford, MA
- Average snowfall days in January:
8.7 days - Average snowfall days in February:
8.8 days - Average snowfall days in March:
7.7 days - Average snowfall days in April:
1.5 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 days - Average snowfall days in December:
5.8 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Westford, 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 2min
- 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 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- 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 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:
6h and 0min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
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
Westford, MA
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
15 days - Average sunshine days in March:
14.7 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
14.3 days
- Average sunshine days in July:
14.6 days - Average sunshine days in August:
15.9 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
17.8 days - Average sunshine days in December:
16.7 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is May (13.8 days).
Average UV index
Westford, 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
Westford, MA
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Westford, MA
The months with the highest visibility are January, March, April, May, July, August, October, November and December (6mi).
The months with the lowest visibility are February, June and September (5mi).
Westford, Massachusetts, USA
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