Climate and monthly weather forecastJamesburg, NJ
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Jamesburg, New Jersey, with an average temperature varying between 37°F (2.8°C) and 25°F (-3.9°C). Jamesburg's temperature records reveal January as the coldest month, marked by average highs of 37°F (2.8°C) and lows of 25°F (-3.9°C). Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Jamesburg, New Jersey, with temperature in the range of an average high of 39.9°F (4.4°C) and an average low of 26.6°F (-3°C). February's onset brings an average high-temperature of a still wintry 39.9°F (4.4°C), showing a minute difference from January's 37°F (2.8°C). Weather in February »Weather in March
March, the first month of the spring in Jamesburg, is a frosty month, with an average temperature ranging between max 47.8°F (8.8°C) and min 34.2°F (1.2°C). Jamesburg's transition into March sees a mild rise in the average high-temperature, edging from a cold 39.9°F (4.4°C) in February to a frosty 47.8°F (8.8°C). Weather in March »Weather in April
April in Jamesburg, New Jersey, is a moderate spring month, with temperature in the range of an average low of 43.9°F (6.6°C) and an average high of 59.4°F (15.2°C). Jamesburg's transition into April is marked by a rise in the average high-temperature, advancing from a frosty 47.8°F (8.8°C) in March to a mild 59.4°F (15.2°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Jamesburg, New Jersey, with an average temperature fluctuating between 69.4°F (20.8°C) and 54°F (12.2°C). An escalation in the average high-temperature is seen with the onset of May, moving from a refreshing 59.4°F (15.2°C) in April to a pleasant 69.4°F (20.8°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Jamesburg, New Jersey, with an average temperature fluctuating between 61.5°F (16.4°C) and 77.9°F (25.5°C). The arrival of June introduces a minor uplift in high-temperatures, adjusting from a pleasant 69.4°F (20.8°C) in May to a moderately hot 77.9°F (25.5°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Jamesburg, New Jersey, with an average temperature fluctuating between 84.2°F (29°C) and 68°F (20°C). July, characterized by an average high temperature of 84.2°F (29°C) and a low temperature of 68°F (20°C), is generally the warmest month. Throughout July, the heat index is appraised at a tropical 91.4°F (33°C). Weather in July »Weather in August
August, the last month of the summer in Jamesburg, is another warm month, with an average temperature ranging between max 82.4°F (28°C) and min 67.3°F (19.6°C). At the onset of August, Jamesburg records an average high-temperature of a still warm 82.4°F (28°C), showing little deviation from the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Jamesburg, is still a warm month, with an average temperature varying between 75.7°F (24.3°C) and 60.6°F (15.9°C). As September arrives, Jamesburg's weather displays a minor decrease in high-temperatures, transitioning from August's moderately hot 82.4°F (28°C) to a still warm 75.7°F (24.3°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Jamesburg, New Jersey, with temperature in the range of an average low of 50.4°F (10.2°C) and an average high of 63.9°F (17.7°C). The start of October comes with a reduction in the average high-temperature, receding from a moderately hot 75.7°F (24.3°C) in September to a comfortable 63.9°F (17.7°C). Weather in October »Weather in November
November, the last month of the autumn in Jamesburg, is also a fresh month, with an average temperature fluctuating between 52°F (11.1°C) and 38.8°F (3.8°C). During Jamesburg's transition into November, the average high-temperature lessens, moving from a refreshing 63.9°F (17.7°C) in October to a cool 52°F (11.1°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Jamesburg, New Jersey, with temperature in the range of an average high of 43.2°F (6.2°C) and an average low of 32.7°F (0.4°C). With the arrival of December, Jamesburg experiences a modest decline in average high-temperatures, transitioning from a fresh 52°F (11.1°C) in November to a frosty 43.2°F (6.2°C). Weather in December »Updated: Aug 3, 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 is the coldest month of the year, registering average temperatures as high as 37°F (2.8°C) and as low as 25°F (-3.9°C).
In Jamesburg, during the entire year, the rain falls for 92.9 days and collects up to 7.32" (186mm) of precipitation.
Months with snowfall are January through March, November and December.
Throughout the year, there are 12.7 snowfall days, and 1.5" (38mm) of snow is accumulated.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
The months with the highest humidity are February, May, October and December, with an average relative humidity of 77%.
With an average of 4.7h of sunshine, February has the least sunshine of the year.
March is the month with the most snowfall. Snow falls for 3 days and accumulates 0.51" (13mm) 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 and August, with an average relative humidity of 73%, are the least humid months.
April through October are months without snowfall.
The months with the highest UV index are May through August, with an average maximum UV index of 6.
June has the longest days of the year, with an average of 15h and 0min of daylight.
Jamesburg's warmest month, July, registers temperatures that range from a high of 84.2°F (29°C) to a low of 68°F (20°C).
July is the month with the most rainfall. Rain falls for 10.7 days and accumulates 0.94" (24mm) of precipitation.
July has the most sunshine of the year in Jamesburg, with an average of 10.5h of sunshine.
September is the month with the least rainfall. Rain falls for 7.5 days and accumulates 0.28" (7mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 24min of daylight.
Average temperature
Jamesburg, 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 (37°F).
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure
Jamesburg, 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:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.02"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
Jamesburg, NJ
- Average wind speed in January:
9.1mph - Average wind speed in February:
9mph - Average wind speed in March:
9.3mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7.3mph - Average wind speed in June:
6.7mph
- Average wind speed in July:
6mph - Average wind speed in August:
5.9mph - Average wind speed in September:
6.5mph - Average wind speed in October:
7.6mph - Average wind speed in November:
8.1mph - Average wind speed in December:
8.5mph
The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity
Jamesburg, NJ
The months with the highest relative humidity are February, May, October and December (77%).
The months with the lowest relative humidity are April and August (73%).
Average rainfall
Jamesburg, NJ
- Average rainfall in January:
0.43" - Average rainfall in February:
0.47" - Average rainfall in March:
0.59" - Average rainfall in April:
0.51" - Average rainfall in May:
0.75" - Average rainfall in June:
0.59"
- Average rainfall in July:
0.94" - Average rainfall in August:
0.79" - Average rainfall in September:
0.28" - Average rainfall in October:
0.59" - Average rainfall in November:
0.59" - Average rainfall in December:
0.79"
The wettest month (with the highest rainfall) is July (0.94").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days
Jamesburg, NJ
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
5.5 days - Average rainfall days in March:
7.9 days - Average rainfall days in April:
8.5 days - Average rainfall days in May:
9.8 days - Average rainfall days in June:
9.3 days
- Average rainfall days in July:
10.7 days - Average rainfall days in August:
10.3 days - Average rainfall days in September:
7.5 days - Average rainfall days in October:
7.3 days - Average rainfall days in November:
4.8 days - Average rainfall days in December:
6.5 days
The month with the highest number of rainy days is July (10.7 days).
The months with the least rainy days are January and November (4.8 days).
Average snowfall
Jamesburg, NJ
The month with the highest snowfall is March (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Jamesburg, NJ
- Average snowfall days in January:
3.3 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
3 days - Average snowfall days in April:
0.2 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 days - Average snowfall days in November:
0.2 days - Average snowfall days in December:
2.2 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Jamesburg, 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 24min - 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 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: 15h and 0min).
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 42min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Jamesburg, NJ
- Average sunshine days in January:
24.2 days - Average sunshine days in February:
19.8 days - Average sunshine days in March:
19.8 days - Average sunshine days in April:
20.1 days - Average sunshine days in May:
18 days - Average sunshine days in June:
17.9 days
- Average sunshine days in July:
15.7 days - Average sunshine days in August:
17.6 days - Average sunshine days in September:
20.5 days - Average sunshine days in October:
21.3 days - Average sunshine days in November:
23.5 days - Average sunshine days in December:
23 days
The month with the most sunshine days is January (24.2 days).
The month with the least sunshine days is July (15.7 days).
Average UV index
Jamesburg, 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, March, November and December (UV index 2).
Average cloud cover
Jamesburg, NJ
The months with the most cloud cover are February, March and December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility
Jamesburg, 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).
