Climate and monthly weather forecastWest Groton, MA
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in West Groton, Massachusetts, with an average temperature ranging between min 19.4°F (-7°C) and max 31.3°F (-0.4°C). In West Groton, January is the month with the lowest recorded average temperatures, measuring a high of 31.3°F (-0.4°C) and a low of 19.4°F (-7°C). Weather in January »Weather in February
February, the last month of the winter in West Groton, is a cold month, with an average temperature varying between 34.7°F (1.5°C) and 19.9°F (-6.7°C). A minimal variation is noted in West Groton's average high-temperature at the onset of February, reaching a wintry 34.7°F (1.5°C) from January's 31.3°F (-0.4°C). Weather in February »Weather in March
The first month of the spring, March, is still a cold month in West Groton, Massachusetts, with an average temperature varying between 42.3°F (5.7°C) and 27.5°F (-2.5°C). In March, the meteorological conditions subtly change with the average high-temperature edging from a cold 34.7°F (1.5°C) in February to a still wintry 42.3°F (5.7°C). Weather in March »Weather in April
April is a refreshing spring month in West Groton, Massachusetts, with an average temperature varying between 38.1°F (3.4°C) and 55.6°F (13.1°C). Noticing a change, the average high-temperature during April moves from March's wintry 42.3°F (5.7°C) to a mild 55.6°F (13.1°C). Weather in April »Weather in May
May, the last month of the spring in West Groton, is an enjoyable month, with an average temperature varying between 47.8°F (8.8°C) and 67.6°F (19.8°C). The average high-temperature increases in May, moving from a moderate 55.6°F (13.1°C) in April to a comfortable 67.6°F (19.8°C). Weather in May »Weather in June
June, the first month of the summer in West Groton, is a moderately hot month, with an average temperature fluctuating between 55.6°F (13.1°C) and 75.4°F (24.1°C). June's onset brings a subtle temperature rise, moving from an enjoyable 67.6°F (19.8°C) in May to a warm 75.4°F (24.1°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in West Groton, Massachusetts, with an average temperature fluctuating between 82°F (27.8°C) and 62.2°F (16.8°C). The warmest temperatures occur during July, when averages reach a peak of 82°F (27.8°C) and a low of 62.2°F (16.8°C). During July, the heat index is computed to be a tropical 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 West Groton, Massachusetts, with an average temperature ranging between max 80.2°F (26.8°C) and min 60.4°F (15.8°C). The advent of August brings an average high-temperature of a still moderately hot 80.2°F (26.8°C), exhibiting minor difference from the previous month. Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in West Groton, Massachusetts, with an average temperature fluctuating between 54°F (12.2°C) and 72.7°F (22.6°C). September brings a minor shift in the average high-temperature, adjusting from a moderately hot 80.2°F (26.8°C) in August to an agreeable 72.7°F (22.6°C). Weather in September »Weather in October
October, like September, is a moderate autumn month in West Groton, Massachusetts, with an average temperature ranging between min 44.6°F (7°C) and max 59.9°F (15.5°C). The onset of October entails a temperature shift, as the average high-temperature decreases from an agreeable 72.7°F (22.6°C) in September to a moderate 59.9°F (15.5°C). Weather in October »Weather in November
November, the last month of the autumn in West Groton, is also a frosty month, with temperature in the range of an average high of 47.3°F (8.5°C) and an average low of 34.3°F (1.3°C). The start of November involves a temperature drop, moving from a moderate 59.9°F (15.5°C) in October to a chilly 47.3°F (8.5°C). Weather in November »Weather in December
December, the first month of the winter in West Groton, is still a cold month, with an average temperature fluctuating between 26.2°F (-3.2°C) and 37.4°F (3°C). December brings a decrease in the average high-temperature, falling from November's frosty 47.3°F (8.5°C) to a wintry 37.4°F (3°C). Weather in December »Updated: Jul 14, 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
January, recording an average high temperature of 31.3°F (-0.4°C) and a low temperature of 19.4°F (-7°C), is West Groton's coldest month.
Throughout the year, there are 142.2 rainfall days, and 26.97" (685mm) of precipitation is accumulated.
Months with snowfall are January through May, October through December.
Throughout the year, there are 32.6 snowfall days, and 22.99" (584mm) of snow is accumulated.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
The most humid month in West Groton is February, with an average relative humidity of 81%.
The month with the most snowfall in West Groton is February, when snow falls for 7.8 days and typically aggregates up to 6.3" (160mm) of snow.
With an average of 4.6h of sunshine, February has the least sunshine of the year.
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.
April is the least humid month, with an average relative humidity of 71%.
June through September are months without snowfall.
June has the longest days of the year, with an average of 15h and 18min of daylight.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
With average high and low temperatures of 82°F (27.8°C) and 62.2°F (16.8°C) respectively, July is West Groton's warmest month.
The month with the most sunshine is August, with an average of 10.3h of sunshine.
September is the month with the least rainfall. Rain falls for 9.9 days and accumulates 1.3" (33mm) of precipitation.
December is the month with the most rainfall. Rain falls for 9.7 days and accumulates 2.8" (71mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 6min of daylight.
Average temperature
West Groton, MA
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.3°F).
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure
West Groton, 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:
30.04"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
West Groton, MA
- Average wind speed in January:
8.4mph - Average wind speed in February:
8.2mph - Average wind speed in March:
8.1mph - Average wind speed in April:
7.8mph - Average wind speed in May:
6.5mph - 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:
5.7mph - Average wind speed in October:
6.9mph - Average wind speed in November:
7.3mph - Average wind speed in December:
8mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity
West Groton, MA
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (71%).
Average rainfall
West Groton, MA
- Average rainfall in January:
2.13" - Average rainfall in February:
2.09" - Average rainfall in March:
2.48" - Average rainfall in April:
2.64" - Average rainfall in May:
2.09" - Average rainfall in June:
2.32"
The wettest month (with the highest rainfall) is December (2.8").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days
West Groton, MA
- Average rainfall days in January:
7.8 days - Average rainfall days in February:
7.7 days - Average rainfall days in March:
11.4 days - Average rainfall days in April:
14.5 days - Average rainfall days in May:
15.5 days - Average rainfall days in June:
14.6 days
- Average rainfall days in July:
14.5 days - Average rainfall days in August:
13.2 days - Average rainfall days in September:
9.9 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
9.9 days - Average rainfall days in December:
9.7 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (7.7 days).
Average snowfall
West Groton, MA
- Average snowfall in January:
4.25" - Average snowfall in February:
6.3" - Average snowfall in March:
4.76" - Average snowfall in April:
1.69" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.3").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
West Groton, MA
- Average snowfall days in January:
8.1 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
7.6 days - Average snowfall days in April:
1.6 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:
0.3 days - Average snowfall days in November:
1.8 days - Average snowfall days in December:
5.3 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
West Groton, 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 18min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 54min - 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 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
4h and 36min - Average sunshine in March:
5h and 48min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 18min - Average sunshine in September:
8h and 18min - Average sunshine in October:
5h and 54min - 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
West Groton, MA
- Average sunshine days in January:
17.9 days - Average sunshine days in February:
14.5 days - Average sunshine days in March:
14.9 days - Average sunshine days in April:
13.6 days - Average sunshine days in May:
13.5 days - Average sunshine days in June:
14 days
- Average sunshine days in July:
14.6 days - Average sunshine days in August:
16.4 days - Average sunshine days in September:
17.7 days - Average sunshine days in October:
15.3 days - Average sunshine days in November:
18.4 days - Average sunshine days in December:
17.7 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (13.5 days).
Average UV index
West Groton, 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
West Groton, MA
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
West Groton, MA
The months with the highest visibility are April, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August and September (5mi).
