Climate and monthly weather forecastSalem, NJ
Climate and monthly weather forecast
Weather in January
January, like December, in Salem, New Jersey, is another cold winter month, with temperature in the range of an average low of 27°F (-2.8°C) and an average high of 38.7°F (3.7°C). January, known for its average high temperature of 38.7°F (3.7°C) and an average low temperature of 27°F (-2.8°C), is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Salem, New Jersey, with temperature in the range of an average low of 29.7°F (-1.3°C) and an average high of 42.3°F (5.7°C). Salem experiences an average high-temperature of a still wintry 42.3°F (5.7°C) in February, marking an insignificant shift from 38.7°F (3.7°C) in January. Weather in February »Weather in March
The first month of the spring, March, is a fresh month in Salem, New Jersey, with an average temperature varying between 50.2°F (10.1°C) and 35.8°F (2.1°C). Salem's March weather indicates a minor increase in high-temperatures, edging from February's icy 42.3°F (5.7°C) to a cool 50.2°F (10.1°C). Weather in March »Weather in April
April is an enjoyable spring month in Salem, New Jersey, with temperature in the range of an average low of 46°F (7.8°C) and an average high of 62.6°F (17°C). April's arrival signals an increase in average high-temperatures, moving from March's fresh 50.2°F (10.1°C) to a comfortable 62.6°F (17°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Salem, New Jersey, with temperature in the range of an average high of 72.1°F (22.3°C) and an average low of 55.4°F (13°C). Salem's weather in May shows a rise in the average high-temperature, moving up from April's comfortable 62.6°F (17°C) to a pleasant 72.1°F (22.3°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Salem, New Jersey, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 80.2°F (26.8°C). The arrival of June brings a soft temperature shift, with the average high-temperature nudging from a pleasant 72.1°F (22.3°C) in May to a moderately hot 80.2°F (26.8°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Salem, New Jersey, with an average temperature ranging between max 85.1°F (29.5°C) and min 68.5°F (20.3°C). July, on average, is the warmest month, registering a high temperature of 85.1°F (29.5°C) and a low of 68.5°F (20.3°C). July's mean heat index is computed to be a fiery hot 95°F (35°C). Weather in July »Weather in August
August, the last month of the summer in Salem, is also a moderately hot month, with an average temperature varying between 83.5°F (28.6°C) and 67.3°F (19.6°C). Salem's average high-temperature in August is a still warm 83.5°F (28.6°C), indicating a subtle variation from July. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Salem, New Jersey, with an average temperature fluctuating between 77°F (25°C) and 61.2°F (16.2°C). September ushers in a minor alteration in Salem's climate, with the average high-temperature moving from August's warm 83.5°F (28.6°C) to a still moderately hot 77°F (25°C). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Salem, New Jersey, with an average temperature varying between 65.3°F (18.5°C) and 51.8°F (11°C). October's arrival comes with a decrease in the average high-temperature, moving from a warm 77°F (25°C) in September to a comfortable 65.3°F (18.5°C). Weather in October »Weather in November
November, the last month of the autumn in Salem, is also a fresh month, with an average temperature ranging between min 40.1°F (4.5°C) and max 53.8°F (12.1°C). A shift in the average high-temperature occurs in November, reducing from a refreshing 65.3°F (18.5°C) in October to a fresh 53.8°F (12.1°C). Weather in November »Weather in December
December, the first month of the winter in Salem, is still a chilly month, with an average temperature fluctuating between 34°F (1.1°C) and 45°F (7.2°C). December reveals a small adjustment in temperature, transitioning from an average high of a cool 53.8°F (12.1°C) in November to a chilly 45°F (7.2°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Salem, NJ
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (38.7°F).
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure
Salem, NJ
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Salem, NJ
- Average wind speed in January:
8.8mph - Average wind speed in February:
8.9mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.2mph - Average wind speed in June:
6.7mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.2mph - Average wind speed in October:
7.6mph - Average wind speed in November:
8mph - Average wind speed in December:
8.1mph
The windiest months (with the highest average wind speed) are February, March and April (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity
Salem, NJ
The months with the highest relative humidity are May, June, September and October (77%).
The month with the lowest relative humidity is April (72%).
Average rainfall
Salem, NJ
- Average rainfall in January:
1.77" - Average rainfall in February:
2.05" - Average rainfall in March:
2.4" - Average rainfall in April:
2.17" - Average rainfall in May:
2.48" - Average rainfall in June:
2.32"
- Average rainfall in July:
2.83" - Average rainfall in August:
3.23" - Average rainfall in September:
1.85" - Average rainfall in October:
2.17" - Average rainfall in November:
1.85" - Average rainfall in December:
2.68"
The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days
Salem, NJ
- Average rainfall days in January:
8.9 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
12.7 days - Average rainfall days in April:
13.5 days - Average rainfall days in May:
16.7 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
16.5 days - Average rainfall days in August:
15 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
11.1 days - Average rainfall days in November:
8 days - Average rainfall days in December:
9.8 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (8 days).
Average snowfall
Salem, NJ
- Average snowfall in January:
1.81" - Average snowfall in February:
1.5" - Average snowfall in March:
2.32" - Average snowfall in April:
0.08" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Salem, NJ
- Average snowfall days in January:
4.2 days - Average snowfall days in February:
4 days - Average snowfall days in March:
2.6 days - Average snowfall days in April:
0.2 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 days - Average snowfall days in November:
0.4 days - Average snowfall days in December:
2.3 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Salem, NJ
- Average daylight in January:
9h and 48min - 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 24min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
4h and 54min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 30min - Average sunshine in May:
8h and 36min - Average sunshine in June:
10h and 6min
- Average sunshine in July:
10h and 42min - Average sunshine in August:
10h and 12min - Average sunshine in September:
9h and 6min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days
Salem, NJ
- Average sunshine days in January:
18.7 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
16 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
13.6 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
20.6 days - Average sunshine days in December:
18.5 days
The month with the most sunshine days is November (20.6 days).
The months with the least sunshine days are May and July (11.8 days).
Average UV index
Salem, NJ
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Salem, NJ
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Salem, NJ
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).





