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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, like December, in Rockleigh, New Jersey, is an icy winter month, with an average temperature varying between 35.4°F (1.9°C) and 24.1°F (-4.4°C). January, on average, is the coldest month, registering a high temperature of 35.4°F (1.9°C) and a low of 24.1°F (-4.4°C). Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in Rockleigh, New Jersey, with temperature in the range of an average low of 25.7°F (-3.5°C) and an average high of 38.8°F (3.8°C). With the onset of February, a modest change to a still cold 38.8°F (3.8°C) from January's 35.4°F (1.9°C) is noted in high-temperature. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Rockleigh, New Jersey, with an average temperature fluctuating between 46.6°F (8.1°C) and 32.7°F (0.4°C). The onset of March brings a minor temperature shift, with the average high-temperature moving from a cold 38.8°F (3.8°C) in February to a chilly 46.6°F (8.1°C). Weather in March »
Weather in April
April in Rockleigh, New Jersey, is a moderate spring month, with an average temperature fluctuating between 58.3°F (14.6°C) and 43.2°F (6.2°C). The shift from March to April brings an increase in the average high-temperature, moving from a chilly 46.6°F (8.1°C) to a refreshing 58.3°F (14.6°C). Weather in April »
Weather in May
May, the last month of the spring in Rockleigh, is an agreeable month, with an average temperature ranging between max 69.6°F (20.9°C) and min 52.7°F (11.5°C). The arrival of May brings a change in Rockleigh's weather, with average high-temperatures moving from April's moderate 58.3°F (14.6°C) to an agreeable 69.6°F (20.9°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Rockleigh, New Jersey, with an average temperature fluctuating between 78.4°F (25.8°C) and 60.6°F (15.9°C). The transition from May to June brings a subtle temperature rise, with average high-temperatures increasing from a pleasant 69.6°F (20.9°C) to a moderately hot 78.4°F (25.8°C). Weather in June »
Weather in July
July, like June, in Rockleigh, New Jersey, is a moderately hot summer month, with temperature in the range of an average low of 68°F (20°C) and an average high of 84.9°F (29.4°C). In Rockleigh, New Jersey, July is the month with the highest recorded average temperatures, measuring a high of 84.9°F (29.4°C) and a low of 68°F (20°C). July's heat index is appraised at a tropical 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Rockleigh, is another warm month, with temperature in the range of an average high of 82.9°F (28.3°C) and an average low of 67.3°F (19.6°C). During August, Rockleigh observes a subtle ascent to a still moderately hot 82.9°F (28.3°C) from July's 84.9°F (29.4°C) in the average high-temperature. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Rockleigh, New Jersey, with an average temperature varying between 59.9°F (15.5°C) and 75.4°F (24.1°C). The arrival of September is marked by a minor reduction in average high-temperature, sliding from 82.9°F (28.3°C) in August to a still warm 75.4°F (24.1°C). Weather in September »
Weather in October
October, like September, in Rockleigh, New Jersey, is another comfortable autumn month, with an average temperature ranging between max 63.1°F (17.3°C) and min 50.2°F (10.1°C). The onset of October entails a temperature shift, as the average high-temperature decreases from a moderately hot 75.4°F (24.1°C) in September to a comfortable 63.1°F (17.3°C). Weather in October »
Weather in November
November, the last month of the autumn in Rockleigh, is also a fresh month, with an average temperature ranging between max 50.9°F (10.5°C) and min 38.5°F (3.6°C). November ushers in a slight temperature change, with average high-temperatures reducing from October's refreshing 63.1°F (17.3°C) to a fresh 50.9°F (10.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Rockleigh, New Jersey, with an average temperature ranging between max 41.7°F (5.4°C) and min 30.9°F (-0.6°C). December shows a mild decline in the average high-temperature, falling from November's fresh 50.9°F (10.5°C) to a wintry 41.7°F (5.4°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Rockleigh?
Rockleigh's temperature records reveal January as the coldest month, marked by average highs of 35.4°F (1.9°C) and lows of 24.1°F (-4.4°C).
How much does it rain in Rockleigh?
In Rockleigh, New Jersey, during the entire year, the rain falls for 153.9 days and collects up to 30.75" (781mm) of precipitation.
When does it snow in Rockleigh?
January through April, November and December are months with snowfall.
How many days does it snow in Rockleigh?
Throughout the year, in Rockleigh, there are 25.5 snowfall days, and 10.55" (268mm) of snow is accumulated.
When is the lowest UV index in Rockleigh?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Rockleigh, New Jersey.
What is the most humid month in Rockleigh?
February is the most humid month in Rockleigh, New Jersey, with an average relative humidity of 77%.
What is the month with the least sunshine in Rockleigh?
The month with the least sunshine in Rockleigh, New Jersey, is February, with an average of 4.6h of sunshine.
What is the snowiest month in Rockleigh?
March is the month with the most snowfall. Snow falls for 5.4 days and accumulates 3.07" (78mm) of snow.
When is Daylight Saving Time (DST) in Rockleigh?
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.
When it does not snow in Rockleigh?
May through October are months without snowfall.
When are the longest days in Rockleigh?
June has the longest days of the year, with an average of 15h and 6min of daylight.
What are the months with the highest UV index in Rockleigh?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What month is the hottest in Rockleigh?
Rockleigh's warmest weather arrives in July, when temperatures average a high of 84.9°F (29.4°C) and a low of 68°F (20°C).
What month has the most sunshine in Rockleigh?
With an average of 10.3h of sunshine, July has the most sunshine of the year in Rockleigh.
What is the least humid month in Rockleigh?
The least humid month in Rockleigh, New Jersey, is August, with an average relative humidity of 68%.
What is the driest month in Rockleigh?
September is the month with the least rainfall in Rockleigh. Rain falls for 11.6 days and accumulates 1.73" (44mm) of precipitation.
What is the rainiest month in Rockleigh?
The month with the most rainfall is December, when the rain falls for 10.7 days and typically aggregates up to 3.46" (88mm) of precipitation.
What is the month with the shortest days in Rockleigh?
December has the shortest days of the year in Rockleigh, New Jersey, with an average of 9h and 18min of daylight.
Average temperature
Rockleigh, NJ
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.4°F).
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure
Rockleigh, NJ
- Average pressure in January:
30.06"Hg - Average pressure in February:
30.03"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:
30.06"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Rockleigh, NJ
- Average wind speed in January:
8.5mph - Average wind speed in February:
8.3mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.7mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.3mph - Average wind speed in November:
7.6mph - Average wind speed in December:
8mph
The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity
Rockleigh, NJ
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (68%).
Average rainfall
Rockleigh, NJ
- Average rainfall in January:
2.2" - Average rainfall in February:
2.05" - Average rainfall in March:
2.76" - Average rainfall in April:
2.76" - Average rainfall in May:
2.68" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.68" - Average rainfall in August:
2.28" - Average rainfall in September:
1.73" - Average rainfall in October:
2.99" - Average rainfall in November:
2.48" - Average rainfall in December:
3.46"
The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days
Rockleigh, NJ
- Average rainfall days in January:
8.2 days - Average rainfall days in February:
9 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
15.5 days
- Average rainfall days in July:
16.1 days - Average rainfall days in August:
14.4 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
12.7 days - Average rainfall days in November:
9.8 days - Average rainfall days in December:
10.7 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8.2 days).
Average snowfall
Rockleigh, NJ
The month with the highest snowfall is March (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Rockleigh, NJ
- Average snowfall days in January:
6.9 days - Average snowfall days in February:
6.8 days - Average snowfall days in March:
5.4 days - Average snowfall days in April:
0.7 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:
1.1 days - Average snowfall days in December:
4.6 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Rockleigh, 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 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
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 4min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Rockleigh, NJ
- Average sunshine days in January:
18.1 days - Average sunshine days in February:
14.1 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
12.7 days - Average sunshine days in May:
12.9 days - Average sunshine days in June:
12.7 days
- Average sunshine days in July:
13.1 days - Average sunshine days in August:
15 days - Average sunshine days in September:
16.7 days - Average sunshine days in October:
17 days - Average sunshine days in November:
18.1 days - Average sunshine days in December:
16.8 days
The months with the most sunshine days are January and November (18.1 days).
The months with the least sunshine days are April and June (12.7 days).
Average UV index
Rockleigh, 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
Rockleigh, NJ
The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Rockleigh, 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).
Rockleigh, New Jersey, USA
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