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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is an icy winter month in Robertsville, New Jersey, with an average temperature fluctuating between 26.4°F (-3.1°C) and 37°F (2.8°C). January is the coldest month of the year, registering average temperatures as high as 37°F (2.8°C) and as low as 26.4°F (-3.1°C). Weather in January »
Weather in February
The last month of the winter, February, is also a wintry month in Robertsville, New Jersey, with an average temperature varying between 28.2°F (-2.1°C) and 40.1°F (4.5°C). The ushering in of February brings an average high-temperature of a still icy 40.1°F (4.5°C), closely mirroring the 37°F (2.8°C) of January. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Robertsville, New Jersey, with temperature in the range of an average low of 35.2°F (1.8°C) and an average high of 46.9°F (8.3°C). March's onset is marked by a subtle temperature increase, moving from an icy 40.1°F (4.5°C) in February to a frosty 46.9°F (8.3°C). Weather in March »
Weather in April
April is a mild spring month in Robertsville, New Jersey, with an average temperature fluctuating between 58.1°F (14.5°C) and 44.4°F (6.9°C). As March gives way to April, the average high-temperature displays an increase, moving from a frosty 46.9°F (8.3°C) to a moderate 58.1°F (14.5°C). Weather in April »
Weather in May
May, the last month of the spring in Robertsville, is a refreshing month, with an average temperature varying between 54.1°F (12.3°C) and 67.6°F (19.8°C). With the onset of May, Robertsville experiences a temperature shift, with the average high-temperature moving from a moderate 58.1°F (14.5°C) in April to an enjoyable 67.6°F (19.8°C). Weather in May »
Weather in June
June, the first month of the summer in Robertsville, is a warm month, with an average temperature ranging between max 76.6°F (24.8°C) and min 62.4°F (16.9°C). June's arrival coincides with a temperature rise, moving from May's comfortable 67.6°F (19.8°C) to a warm 76.6°F (24.8°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Robertsville, New Jersey, with temperature in the range of an average low of 69.1°F (20.6°C) and an average high of 82.8°F (28.2°C). July, with its high-temperature average of 82.8°F (28.2°C) and a low-temperature average of 69.1°F (20.6°C), is the warmest month. July's heat index is appraised at a tropical 89.6°F (32°C). Weather in July »
Weather in August
August, the last month of the summer in Robertsville, is also a moderately hot month, with an average temperature varying between 81.1°F (27.3°C) and 68.4°F (20.2°C). The ushering in of August brings an average high-temperature of a still warm 81.1°F (27.3°C), closely mirroring the 82.8°F (28.2°C) of July. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Robertsville, New Jersey, with temperature in the range of an average low of 62.2°F (16.8°C) and an average high of 74.7°F (23.7°C). The shift from August to September includes a small decrease in the average high-temperature, from a warm 81.1°F (27.3°C) to a still moderately hot 74.7°F (23.7°C). Weather in September »
Weather in October
October, like September, in Robertsville, New Jersey, is another refreshing autumn month, with an average temperature fluctuating between 51.8°F (11°C) and 63.5°F (17.5°C). With October's onset, the weather shows a temperature decrease, transitioning from a warm 74.7°F (23.7°C) in September to a refreshing 63.5°F (17.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Robertsville, New Jersey, with temperature in the range of an average high of 52.2°F (11.2°C) and an average low of 41°F (5°C). Robertsville's November weather shows a moderate shift in high-temperatures, falling from October's enjoyable 63.5°F (17.5°C) to a cool 52.2°F (11.2°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Robertsville, New Jersey, with temperature in the range of an average high of 43.7°F (6.5°C) and an average low of 34.2°F (1.2°C). The transition into December involves a small decrease in the average high-temperature, dipping slightly from a cool 52.2°F (11.2°C) in November to a chilly 43.7°F (6.5°C). Weather in December »
Updated: Feb 13, 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
What is the coldest month in Robertsville?
The coldest month in Robertsville, New Jersey, is January, with an average high-temperature of 37°F (2.8°C) and an average low-temperature of 26.4°F (-3.1°C).
What is the least humid month in Robertsville?
January, March, April, August and November, with an average relative humidity of 74%, are the least humid months.
How many days does it rain in Robertsville?
Throughout the year, in Robertsville, New Jersey, there are 159.5 rainfall days, and 31.22" (793mm) of precipitation is accumulated.
When does it snow in Robertsville?
Months with snowfall in Robertsville, New Jersey, are January through April, October through December.
How much does it snow in Robertsville?
Throughout the year, in Robertsville, there are 19.1 snowfall days, and 7.64" (194mm) of snow is accumulated.
What is the month with the lowest UV index in Robertsville?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Robertsville, New Jersey.
What is the month with the least sunshine in Robertsville?
February has the least sunshine of the year in Robertsville, with an average of 4.9h of sunshine.
What is the snowiest month in Robertsville?
The month with the most snowfall in Robertsville is March, when snow falls for 3.8 days and typically aggregates up to 2.4" (61mm) of snow.
When is Daylight Saving Time (DST) in Robertsville?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Robertsville, 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.
What are the most humid months in Robertsville?
The months with the highest humidity in Robertsville, New Jersey, are May and June, with an average relative humidity of 78%.
When it does not snow in Robertsville?
May through September are months without snowfall.
When are the longest days in Robertsville?
With an average of 15h and 0min of daylight, June has the longest days of the year in Robertsville, New Jersey.
What are the months with the highest UV index in Robertsville?
June through August, with an average maximum UV index of 6, are months with the highest UV index in Robertsville, New Jersey.
What part of the year is the hottest in Robertsville?
With average high and low temperatures of 82.8°F (28.2°C) and 69.1°F (20.6°C) respectively, July is Robertsville's warmest month.
What month has the most sunshine in Robertsville?
With an average of 10.7h of sunshine, July has the most sunshine of the year.
What is the driest month in Robertsville?
The month with the least rainfall in Robertsville is September, when the rain falls for 13.2 days and typically collects 1.69" (43mm) of precipitation.
What is the rainiest month in Robertsville?
The month with the most rainfall in Robertsville, New Jersey, is December, when the rain falls for 12.1 days and typically aggregates up to 3.35" (85mm) of precipitation.
What is the month with the shortest days in Robertsville?
With an average of 9h and 24min of daylight, December has the shortest days of the year in Robertsville, New Jersey.
Average temperature
Robertsville, NJ
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (37°F).
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure
Robertsville, 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
Robertsville, NJ
- Average wind speed in January:
10.1mph - Average wind speed in February:
10mph - Average wind speed in March:
10.1mph - Average wind speed in April:
9.4mph - Average wind speed in May:
7.9mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.4mph - Average wind speed in October:
8.7mph - Average wind speed in November:
9.2mph - Average wind speed in December:
9.5mph
The windiest months (with the highest average wind speed) are January and March (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity
Robertsville, NJ
The months with the highest relative humidity are May and June (78%).
The months with the lowest relative humidity are January, March, April, August and November (74%).
Average rainfall
Robertsville, NJ
- Average rainfall in January:
2.01" - Average rainfall in February:
2.32" - Average rainfall in March:
2.87" - Average rainfall in April:
2.32" - Average rainfall in May:
2.99" - Average rainfall in June:
2.48"
- Average rainfall in July:
3.31" - Average rainfall in August:
2.83" - Average rainfall in September:
1.69" - Average rainfall in October:
2.72" - Average rainfall in November:
2.32" - Average rainfall in December:
3.35"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days
Robertsville, NJ
- Average rainfall days in January:
9.8 days - Average rainfall days in February:
9.9 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
15.4 days - Average rainfall days in May:
16 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
16.4 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
13.2 days - Average rainfall days in October:
13.2 days - Average rainfall days in November:
9.8 days - Average rainfall days in December:
12.1 days
The month with the highest number of rainy days is July (16.4 days).
The months with the least rainy days are January and November (9.8 days).
Average snowfall
Robertsville, NJ
The month with the highest snowfall is March (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Robertsville, NJ
- Average snowfall days in January:
5.3 days - Average snowfall days in February:
5.2 days - Average snowfall days in March:
3.8 days - Average snowfall days in April:
0.4 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:
0.8 days - Average snowfall days in December:
3.5 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Robertsville, NJ
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
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 1min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 3min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 3min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 1min
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
Robertsville, NJ
- Average sunshine days in January:
17.4 days - Average sunshine days in February:
13.8 days - Average sunshine days in March:
14.5 days - Average sunshine days in April:
12.9 days - Average sunshine days in May:
13.3 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
14.5 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
16.4 days - Average sunshine days in November:
18.3 days - Average sunshine days in December:
15.7 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (12.3 days).
Average UV index
Robertsville, 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
Robertsville, NJ
The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility
Robertsville, 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).
Robertsville, New Jersey, USA
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