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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 North Chelmsford, Massachusetts, with an average temperature ranging between min 19.9°F (-6.7°C) and max 32.5°F (0.3°C). January is the coldest month of the year, registering average temperatures as high as 32.5°F (0.3°C) and as low as 19.9°F (-6.7°C). Weather in January »
Weather in February
February, the last month of the winter in North Chelmsford, is another cold month, with an average temperature ranging between max 35.1°F (1.7°C) and min 21.4°F (-5.9°C). The onset of February marks an average high-temperature of a still cold 35.1°F (1.7°C), hardly differing from January's 32.5°F (0.3°C). Weather in February »
Weather in March
March, the first month of the spring in North Chelmsford, is also a wintry month, with an average temperature ranging between min 28.8°F (-1.8°C) and max 42.4°F (5.8°C). The shift into March brings a slight increase in the average high-temperature, moving from a wintry 35.1°F (1.7°C) in February to a still cold 42.4°F (5.8°C). Weather in March »
Weather in April
April in North Chelmsford, Massachusetts, is a moderate spring month, with temperature in the range of an average high of 55.4°F (13°C) and an average low of 39°F (3.9°C). As April arrives, a rise in the average high-temperature is observed, moving from an icy 42.4°F (5.8°C) in March to a moderate 55.4°F (13°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in North Chelmsford, Massachusetts, with an average temperature varying between 67.1°F (19.5°C) and 48.7°F (9.3°C). The transition to May introduces an increase in the average high-temperature, shifting from a refreshing 55.4°F (13°C) in April to an enjoyable 67.1°F (19.5°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in North Chelmsford, Massachusetts, with an average temperature varying between 56.3°F (13.5°C) and 75.2°F (24°C). The transition from May to June brings a subtle temperature rise, with average high-temperatures increasing from a refreshing 67.1°F (19.5°C) to a warm 75.2°F (24°C). Weather in June »
Weather in July
July, like June, in North Chelmsford, Massachusetts, is a moderately hot summer month, with an average temperature fluctuating between 82.2°F (27.9°C) and 63.1°F (17.3°C). North Chelmsford's July weather, marked by an average high temperature of 82.2°F (27.9°C) and an average low temperature of 63.1°F (17.3°C), is the warmest in the year. In July, the 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 North Chelmsford, Massachusetts, with temperature in the range of an average high of 80.6°F (27°C) and an average low of 62.2°F (16.8°C). North Chelmsford observes an average high-temperature of a still warm 80.6°F (27°C) in August, barely different from 82.2°F (27.9°C) in July. Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in North Chelmsford, Massachusetts, with an average temperature fluctuating between 55.4°F (13°C) and 72.5°F (22.5°C). September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a warm 80.6°F (27°C) in August to an agreeable 72.5°F (22.5°C). Weather in September »
Weather in October
October, like September, is another refreshing autumn month in North Chelmsford, Massachusetts, with an average temperature varying between 59.9°F (15.5°C) and 45.7°F (7.6°C). In North Chelmsford, entering October brings a temperature decrement, reducing from September's pleasant 72.5°F (22.5°C) to a refreshing 59.9°F (15.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in North Chelmsford, Massachusetts, with an average temperature ranging between max 48.2°F (9°C) and min 35.6°F (2°C). November involves a decrease in temperature, down from a refreshing 59.9°F (15.5°C) in October to a frosty 48.2°F (9°C). Weather in November »
Weather in December
December, the first month of the winter in North Chelmsford, is also a wintry month, with an average temperature fluctuating between 37.9°F (3.3°C) and 27.3°F (-2.6°C). December implies a gentle temperature shift, with average high-temperatures reducing from November's frosty 48.2°F (9°C) to a cold 37.9°F (3.3°C). Weather in December »
Updated: Jul 31, 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 month?
With its average high temperature of 32.5°F (0.3°C) and a low of 19.9°F (-6.7°C), January is regarded as the coldest month.
How much does it rain?
Throughout the year, there are 145.9 rainfall days, and 27.48" (698mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
How many days does it snow?
Throughout the year, there are 32.6 snowfall days, and 21.61" (549mm) of snow is accumulated.
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 8.3 days and accumulates 5.98" (152mm) of snow.
What is the month with the least sunshine?
February has the least sunshine of the year, with an average of 4.7h of sunshine.
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?
April is the least humid month, with an average relative humidity of 70%.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
With an average of 15h and 18min of daylight, June has the longest days of the year.
What is the month with the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What are the warmest months?
The warmest temperatures occur during July, when averages reach a peak of 82.2°F (27.9°C) and a low of 63.1°F (17.3°C).
What month has the most sunshine?
The month with the most sunshine is August, with an average of 10.6h of sunshine.
What is the driest month?
September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.46" (37mm) of precipitation.
What is the rainiest month?
December is the month with the most rainfall. Rain falls for 10.9 days and accumulates 2.87" (73mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 6min of daylight.
Average temperature
North Chelmsford, 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 (32.5°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 (19.9°F).
Average pressure
North Chelmsford, 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
North Chelmsford, MA
- Average wind speed in January:
8.8mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.4mph - Average wind speed in April:
7.9mph - Average wind speed in May:
6.6mph - Average wind speed in June:
6.1mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.5mph - Average wind speed in September:
5.9mph - Average wind speed in October:
7.1mph - Average wind speed in November:
7.6mph - Average wind speed in December:
8.3mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity
North Chelmsford, MA
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (70%).
Average rainfall
North Chelmsford, MA
- Average rainfall in January:
2.2" - Average rainfall in February:
2.13" - Average rainfall in March:
2.56" - Average rainfall in April:
2.6" - Average rainfall in May:
2.01" - Average rainfall in June:
2.28"
- Average rainfall in July:
2.05" - Average rainfall in August:
1.93" - Average rainfall in September:
1.46" - Average rainfall in October:
2.76" - Average rainfall in November:
2.64" - 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 (1.46").
Average rainfall days
North Chelmsford, MA
- Average rainfall days in January:
8 days - Average rainfall days in February:
6.9 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
13.9 days - Average rainfall days in May:
15.6 days - Average rainfall days in June:
15.1 days
- Average rainfall days in July:
15.4 days - Average rainfall days in August:
13.1 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
13.6 days - Average rainfall days in November:
10.4 days - Average rainfall days in December:
10.9 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (6.9 days).
Average snowfall
North Chelmsford, MA
- Average snowfall in January:
4.06" - Average snowfall in February:
5.98" - Average snowfall in March:
4.45" - Average snowfall in April:
1.73" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
North Chelmsford, MA
- Average snowfall days in January:
8.2 days - Average snowfall days in February:
8.3 days - Average snowfall days in March:
7.3 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:
0.1 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
5.6 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
North Chelmsford, 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 2min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 4min - Average sunshine in September:
8h and 3min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
North Chelmsford, MA
- Average sunshine days in January:
17.2 days - Average sunshine days in February:
14.6 days - Average sunshine days in March:
15 days - Average sunshine days in April:
13.7 days - Average sunshine days in May:
13.6 days - Average sunshine days in June:
13.8 days
- Average sunshine days in July:
14.2 days - Average sunshine days in August:
15.9 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
14.8 days - Average sunshine days in November:
17.4 days - Average sunshine days in December:
16.6 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (13.6 days).
Average UV index
North Chelmsford, 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
North Chelmsford, MA
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility
North Chelmsford, 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).
North Chelmsford, Massachusetts, USA
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