Climate and monthly weather forecastSomerville, NJ
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Somerville, New Jersey, with an average temperature fluctuating between 23.2°F (-4.9°C) and 35.6°F (2°C). January is the month when Somerville sees the lowest average temperatures, with a high of 35.6°F (2°C) and a low of 23.2°F (-4.9°C). Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Somerville, New Jersey, with an average temperature ranging between min 24.8°F (-4°C) and max 39.2°F (4°C). Somerville marks the onset of February with an average high-temperature of a still wintry 39.2°F (4°C), a subtle shift from January's 35.6°F (2°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Somerville, New Jersey, with an average temperature varying between 47.7°F (8.7°C) and 32.4°F (0.2°C). March's arrival signals a subtle increase in average high-temperatures, moving from February's cold 39.2°F (4°C) to a frosty 47.7°F (8.7°C). Weather in March »Weather in April
April in Somerville, New Jersey, is a moderate spring month, with an average temperature ranging between min 42.3°F (5.7°C) and max 59.5°F (15.3°C). As Somerville enters April, the average high-temperature increases from the a chilly 47.7°F (8.7°C) of March to a moderate 59.5°F (15.3°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Somerville, New Jersey, with an average temperature fluctuating between 52.2°F (11.2°C) and 70.2°F (21.2°C). As Somerville transitions into May, the average high-temperature is observed to rise from a refreshing 59.5°F (15.3°C) in April to a pleasant 70.2°F (21.2°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Somerville, New Jersey, with temperature in the range of an average high of 78.3°F (25.7°C) and an average low of 59.7°F (15.4°C). In Somerville, the average high-temperature in June slightly increases from a pleasant 70.2°F (21.2°C) in May to a moderately hot 78.3°F (25.7°C). Weather in June »Weather in July
July, like June, in Somerville, New Jersey, is a moderately hot summer month, with an average temperature fluctuating between 66°F (18.9°C) and 84.2°F (29°C). July, with average temperatures reaching a high of 84.2°F (29°C) and a low of 66°F (18.9°C), is the warmest month. The heat index in July is estimated at a tropical 93.2°F (34°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Somerville, New Jersey, with an average temperature fluctuating between 82.4°F (28°C) and 64.6°F (18.1°C). August is marked by an average high-temperature of a still moderately hot 82.4°F (28°C), almost identical to the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Somerville, New Jersey, with temperature in the range of an average low of 58.1°F (14.5°C) and an average high of 75.2°F (24°C). In Somerville, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's 82.4°F (28°C) to a still moderately hot 75.2°F (24°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Somerville, New Jersey, with temperature in the range of an average low of 48°F (8.9°C) and an average high of 63.5°F (17.5°C). The arrival of October signals a shift in temperature, down from a warm 75.2°F (24°C) in September to an enjoyable 63.5°F (17.5°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Somerville, New Jersey, with an average temperature varying between 37.2°F (2.9°C) and 50.9°F (10.5°C). Somerville's November weather comes with a decrease in average high-temperatures, moving from a comfortable 63.5°F (17.5°C) in October to a fresh 50.9°F (10.5°C). Weather in November »Weather in December
December, the first month of the winter in Somerville, is still a cold month, with an average temperature ranging between min 30.6°F (-0.8°C) and max 42.3°F (5.7°C). The advent of December brings a slight shift in average high-temperature, moving from a fresh 50.9°F (10.5°C) in November to a cold 42.3°F (5.7°C). Weather in December »Updated: Aug 24, 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 brings the lowest temperatures in Somerville, with an average high of 35.6°F (2°C) and an average low of 23.2°F (-4.9°C).
In Somerville, during the entire year, the rain falls for 157.9 days and collects up to 28.19" (716mm) of precipitation.
January through May, October through December are months with snowfall.
In Somerville, during the entire year, snow falls for 23.8 days and aggregates up to 9.53" (242mm) of snow.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
February, October and December, with an average relative humidity of 79%, are most humid months.
With an average of 4.6h of sunshine, February has the least sunshine of the year.
The month with the most snowfall is March, when snow falls for 4.9 days and typically aggregates up to 2.83" (72mm) of snow.
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 74%.
June through September are months without snowfall.
The month with the longest days is June, with an average of 15h and 0min of daylight.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
July, with its high-temperature average of 84.2°F (29°C) and a low-temperature average of 66°F (18.9°C), is the warmest month.
The month with the most sunshine is July, with an average of 10.4h of sunshine.
The month with the least rainfall is September, when the rain falls for 12.3 days and typically collects 1.54" (39mm) of precipitation.
December is the month with the most rainfall. Rain falls for 10.9 days and accumulates 2.91" (74mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Somerville, NJ
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure
Somerville, NJ
- Average pressure in January:
30.07"Hg - Average pressure in February:
30.04"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Somerville, NJ
- Average wind speed in January:
8.3mph - Average wind speed in February:
8.3mph - Average wind speed in March:
8.6mph - Average wind speed in April:
8.3mph - Average wind speed in May:
6.7mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.4mph - Average wind speed in August:
5.3mph - Average wind speed in September:
5.8mph - Average wind speed in October:
6.9mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity
Somerville, NJ
The months with the highest relative humidity are February, October and December (79%).
The month with the lowest relative humidity is April (74%).
Average rainfall
Somerville, NJ
- Average rainfall in January:
1.81" - Average rainfall in February:
2.09" - Average rainfall in March:
2.48" - Average rainfall in April:
2.17" - Average rainfall in May:
2.72" - Average rainfall in June:
2.36"
- Average rainfall in July:
2.87" - Average rainfall in August:
2.56" - Average rainfall in September:
1.54" - Average rainfall in October:
2.6" - Average rainfall in November:
2.09" - Average rainfall in December:
2.91"
The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days
Somerville, NJ
- Average rainfall days in January:
9.2 days - Average rainfall days in February:
9 days - Average rainfall days in March:
12.7 days - Average rainfall days in April:
15.4 days - Average rainfall days in May:
17 days - Average rainfall days in June:
16.2 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
15.5 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
10.9 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (9 days).
Average snowfall
Somerville, NJ
- Average snowfall in January:
1.97" - Average snowfall in February:
2.56" - Average snowfall in March:
2.83" - Average snowfall in April:
0.12" - Average snowfall in May:
0.24" - Average snowfall in June:
0"
The month with the highest snowfall is March (2.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Somerville, NJ
- Average snowfall days in January:
6.8 days - Average snowfall days in February:
6.7 days - Average snowfall days in March:
4.9 days - Average snowfall days in April:
0.4 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:
0.8 days - Average snowfall days in December:
4 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Somerville, NJ
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 12min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 36min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Somerville, NJ
- Average sunshine days in January:
18.2 days - Average sunshine days in February:
14.2 days - Average sunshine days in March:
13.6 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
12 days - Average sunshine days in June:
11.7 days
- Average sunshine days in July:
12.4 days - Average sunshine days in August:
13.1 days - Average sunshine days in September:
15 days - Average sunshine days in October:
16.2 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
16.3 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (11.7 days).
Average UV index
Somerville, NJ
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
Somerville, NJ
The months with the most cloud cover are February and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility
Somerville, NJ
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
