Climate and monthly weather forecastLynn, MA
Climate and monthly weather forecast
The climate of Lynn
Lynn, Massachusetts, USA, exhibits a Humid Subtropical climate, identified as Cfa according to the Köppen climate classification. Positioned in the northern hemisphere, its climate is characterized by significant temperature differences throughout the year, coupled with regular precipitation distribution, without a real dry season.Examining monthly average weather parameters, it becomes evident that Lynn's weather swings from bitter cold to tropical warmth. During the colder months, from December to February, the average low temperatures range from 23.4°F (-4.8°C) to 30.9°F (-0.6°C), while high temperatures vary from 34.2°F (1.2°C) to 42.4°F (5.8°C). Conversely, these numbers substantially increase from June to August, with low temperatures fluctuating from 65.3°F (18.5°C) to 80.4°F (26.9°C), and high temperatures reaching up to 79.3°F (26.3°C) to 80.4°F (26.9°C).
With regards to precipitation throughout the year, rainfall evenly distributes, ranging from 1.42" (36mm) in September to 2.99" (76mm) in December. The maximum snowfall, 4.61" (117mm), usually occurs in February. Moving onto relative humidity, it slightly fluctuates throughout the year, with values peaking at 77% in February and dropping to the lowest at 70% in April.
One noteworthy pattern emerges in the realm of daylight hours. Lynn receives the least daylight, 9.1 hours, in December and the most daylight of 15.3 hours in June. This is complemented by the highest average of sunshine hours per day, 10.4 hours, in August.
The best time to visit Lynn
In light of the ascertained climatological characteristics, the best period to visit Lynn would be from June to September. During this span, the city experiences temperatures that range between a comfortable 64.6°F (18.1°C) and a warm 80.4°F (26.9°C). Furthermore, these months garner the longest daylight hours, ranging from 12.5 to 15.3 hours. This, coupled with the highest sunshine per day averaging minutes from 8.3 to 10.4 hours, makes this time of the year ideal for outdoor activities and sightseeing.The worst time to visit Lynn
Conversely, the least favorable time to visit Lynn can be determined as the months between December and February. The city endures the lowest average temperatures in this period, plummeting to 23.4°F (-4.8°C) while barely reaching 42.4°F (5.8°C). Alongside this, a significant quantity of snowfall occurs, with bountiful accumulations reaching as high as 4.61" (117mm) in February. Shorter daylight hours, with an average of 9.1 hours coupled with reduced average sunshine duration of 4.6 hours per day, further limit outdoor exploration opportunities.Spring weather in Lynn
Lynn welcomes spring with gradually warming temperatures and increased daylight. During these months, March, April, and May, high temperatures are on the rise, moving from 42.4°F (5.8°C) to 64.8°F (18.2°C). On the contrary, low temperatures likewise ascend, varying from 30.9°F (-0.6°C) to 49.8°F (9.9°C). Rainfall also experiences a sequential increase, starting from 2.83" (72mm) in March to 2.87" (73mm) in April, offering the city a fresh, revitalizing atmosphere. The daylight duration extends from 12 hours in March to an impressive 14.6 hours by May.Summer weather in Lynn
During the summer months of June to August, Lynn experiences the highest temperatures. High temperatures range from 73°F (22.8°C) to 80.4°F (26.9°C), while low temperatures register between 57.4°F (14.1°C) to 65.3°F (18.5°C). June is the wettest month during this period, recording a rainfall amount of 2.24" (57mm). What makes summers enjoyable in Lynn is the abundant daylight - from 15.3 hours in June, slightly tapering off to 13.8 hours in August.Autumn weather in Lynn
With the arrival of autumn, temperatures gradually decrease in Lynn. The high temperatures dip from 71.6°F (22°C) in September to a cooler 49.5°F (9.7°C) in November, while the lows fall between 57.9°F (14.4°C) to 38.3°F (3.5°C). Rainfall amounts are substantially higher in October and November with 2.6" (66mm) and 2.72" (69mm), respectively. Daylight hours reduce from 12.5 in September to 9.8 hours by November, marking the transition into the cooler months.Winter weather in Lynn
Winter in Lynn brings about the lowest temperatures along with the shortest daylight hours. From December to February, the high temperatures oscillate between 34.2°F (1.2°C) to 42.4°F (5.8°C) while the low temperatures hit their nadir, fluctuating from 23.4°F (-4.8°C) to 30.9°F (-0.6°C). December sees the highest rainfall during this time, recording 2.99" (76mm). The city also experiences the most snowfall in February, accumulating up to 4.61" (117mm). Daylight in winter is at its minimum, fluctuating from 9.5 hours in December to 10.6 hours in February. Regardless, the city still presents a picturesque winter landscape, especially appealing to those who relish the cold.Weather in January
January in Lynn, Massachusetts sets the stage for a typical winter in the northeastern United States, with chill in the air and snow on the ground adding a festive touch. The weather changes from mild to severe, with the temperature plunging to 23.4°F (-4.8°C) and the city blanketed by an average snowfall of 2.76" (70mm). Weather in January »Weather in February
February in Lynn retains the essence of winter, while making a subtle transition towards spring. It noticeably warms up from January, as the lowest temperature increases to 24.6°F (-4.1°C) and snowfall decreases, leading to 4.61" (117mm). Weather in February »Weather in March
March in Lynn signifies the onset of spring, as the city basks in a warmer glow compared to the preceding winter months. There are lower chances of encountering snow as this month witnesses the last snowfall of 3.5" (89mm) for the winter season. Weather in March »Weather in April
April in Lynn experiences a significant leap from winter, as temperatures start to climb. Snowfall is supreme rarity with an almost ignorable count of just 0.59" (15mm). Sea temperatures start to pick up, though they are still somewhat chilly for swimming. Weather in April »Weather in May
May brings a pre-summer warmth to Lynn with mild spikes in temperatures. The month doesn’t see any snowfall and the average lowest temperature jumps to a comfortable 49.8°F (9.9°C). Pleasant sea temperatures urge locals and visitors to take a dip. Weather in May »Weather in June
The weather in June sees Lynn entering the throes of summertime. The warmth builds up with temperatures soaring above the 70°F (21.1°C) mark. Sea temperatures hit the highs of 50s°F, which is refreshing and inviting for beach-goers. Weather in June »Weather in July
July in Lynn, the peak of summer, is typified by high temperatures, longer daylight periods, and minimal rainfall. It records the highest average temperature rise to 80.4°F (26.9°C) and the sea surface temperature reaching its peak at 65.9°F (18.8°C). Weather in July »Weather in August
As August arrives in Lynn, the city experiences a slight dip in the overall temperature from July. This month remarkably records the lowest average precipitation of 1.81" (46mm), indicating lesser disruptions for outdoor plans. Sea temperatures continue to stay warm, offering a perfect solution to beat the summer heat. Weather in August »Weather in September
September brings many delightful changes to the weather pattern in Lynn. The city experiences a remarkable drop in air temperatures and a further decrease in precipitation amounting to 1.42" (36mm). The sea temperature stays comforting, while the decreasing daylight signals the advent of autumn. Weather in September »Weather in October
October witnesses the city of Lynn transitioning into the cooler months. The breeze has a sharper nip to it and the city sees sporadic showers with rainfall steadily increasing. The sea temperature drops below the 60°F (15.6°C) mark, signaling the end of the swimming season. Weather in October »Weather in November
As November rolls in, Lynn readies for winter. The temperature continues to dip, reaching lows of 38.3°F (3.5°C). With a notable increase in rainfall to 2.72" (69mm), the city covers up for the impending cold season. Light snowfall makes its first appearance after a long pause. Weather in November »Weather in December
Finally, December greets Lynn with a distinct winter chill, recording an average temperature drop to 30.2°F (-1°C). This month sees an upward spike in snowfall, reaching 3.43" (87mm) indicating that Christmas is round the corner. 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
Lynn's temperature records reveal January as the coldest month, marked by average highs of 34.2°F (1.2°C) and lows of 23.4°F (-4.8°C).
In Lynn, during the entire year, the rain falls for 144.9 days and collects up to 27.91" (709mm) of precipitation.
Months with snowfall are January through April, October through December.
Throughout the year, there are 29.9 snowfall days, and 15.59" (396mm) 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.
February is the most humid month, with an average relative humidity of 77%.
February is the month with the most snowfall. Snow falls for 7.7 days and accumulates 4.61" (117mm) of snow.
February and March, with an average ocean temperature of 38.8°F (3.8°C), are months with the coldest seawater.
The months with the least sunshine are February and December, with an average of 4.6h of sunshine.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Lynn, 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.
With an average relative humidity of 70%, April is the least humid month in Lynn, Massachusetts.
May through September are months without snowfall.
June has the longest days of the year, with an average of 15h and 12min of daylight.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
With average temperatures fluctuating between a high of 80.4°F (26.9°C) and a low of 65.3°F (18.5°C), July stands out as the warmest month.
August is the month with the warmest seawater, with an average ocean temperature of 67.6°F (19.8°C).
August has the most sunshine of the year, with an average of 10.4h of sunshine.
September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.42" (36mm) of precipitation.
The month with the most rainfall is December, when the rain falls for 10.3 days and typically aggregates up to 2.99" (76mm) of precipitation.
With an average of 9h and 6min of daylight, December has the shortest days of the year.
Average temperature
Lynn, MA
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (34.2°F).
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure
Lynn, MA
- Average pressure in January:
30"Hg - Average pressure in February:
29.98"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:
29.92"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:
30.06"Hg - Average pressure in December:
30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Lynn, MA
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.1mph - Average wind speed in April:
9.2mph - Average wind speed in May:
7.9mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.3mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.4mph - Average wind speed in December:
10.3mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Lynn, MA
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (70%).
Average rainfall
Lynn, MA
- Average rainfall in January:
2.24" - Average rainfall in February:
2.28" - Average rainfall in March:
2.83" - Average rainfall in April:
2.87" - Average rainfall in May:
1.93" - Average rainfall in June:
2.24"
- Average rainfall in July:
1.97" - Average rainfall in August:
1.81" - Average rainfall in September:
1.42" - Average rainfall in October:
2.6" - Average rainfall in November:
2.72" - Average rainfall in December:
2.99"
The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days
Lynn, MA
- Average rainfall days in January:
7.1 days - Average rainfall days in February:
8.6 days - Average rainfall days in March:
11.2 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
15.4 days - Average rainfall days in June:
14 days
- Average rainfall days in July:
15.2 days - Average rainfall days in August:
13.2 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
10.3 days - Average rainfall days in December:
10.3 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (7.1 days).
Average snowfall
Lynn, MA
The month with the highest snowfall is February (4.61").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Lynn, MA
- Average snowfall days in January:
7.7 days - Average snowfall days in February:
7.7 days - Average snowfall days in March:
6.7 days - Average snowfall days in April:
1 days - Average snowfall days in May:
0 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:
1.4 days - Average snowfall days in December:
5.3 days
The months with the highest number of snowfall days are January and February (7.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature
Lynn, MA
The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).
Average daylight / Average sunshine
Lynn, 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 12min
- 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 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 36min - Average sunshine in March:
5h and 36min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 18min - Average sunshine in June:
9h and 6min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 24min - Average sunshine in September:
8h and 18min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days
Lynn, MA
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
13.8 days - Average sunshine days in March:
14.9 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
14.1 days - Average sunshine days in June:
14.4 days
- Average sunshine days in July:
14.5 days - Average sunshine days in August:
16.1 days - Average sunshine days in September:
16.8 days - Average sunshine days in October:
15.9 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
16.1 days
The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is April (13.2 days).
Average UV index
Lynn, 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
Lynn, MA
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Lynn, MA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
