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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 a wintry winter month in Old Tappan, New Jersey, with an average temperature fluctuating between 24.1°F (-4.4°C) and 35.4°F (1.9°C). With average high temperatures of 35.4°F (1.9°C) and lows of 24.1°F (-4.4°C), January is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Old Tappan, is also an icy month, 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). February reports an average high-temperature of a still icy 38.8°F (3.8°C), slightly varied from January's 35.4°F (1.9°C). Weather in February »
Weather in March
March, the first month of the spring in Old Tappan, is a chilly month, with an average temperature fluctuating between 46.6°F (8.1°C) and 32.7°F (0.4°C). March's onset brings a minor rise in 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 is a moderate spring month in Old Tappan, New Jersey, with an average temperature ranging between max 58.3°F (14.6°C) and min 43.2°F (6.2°C). The shift from March to April sees an increase in the average high-temperature, transitioning from a chilly 46.6°F (8.1°C) to a moderate 58.3°F (14.6°C). Weather in April »
Weather in May
May, the last month of the spring in Old Tappan, is a pleasant month, with an average temperature varying between 52.7°F (11.5°C) and 69.6°F (20.9°C). May sees a temperature increase, moving from a moderate 58.3°F (14.6°C) in April to a pleasant 69.6°F (20.9°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Old Tappan, New Jersey, with temperature in the range of an average low of 60.6°F (15.9°C) and an average high of 78.4°F (25.8°C). Old Tappan's weather shows a minor temperature rise with the arrival of June, moving from a pleasant 69.6°F (20.9°C) in May to a moderately hot 78.4°F (25.8°C). Weather in June »
Weather in July
July, like June, in Old Tappan, New Jersey, is a moderately hot summer month, with an average temperature fluctuating between 84.9°F (29.4°C) and 68°F (20°C). July stands out as Old Tappan's warmest month, with temperatures ranging between an average high of 84.9°F (29.4°C) and a low of 68°F (20°C). In July, the average heat index is computed to be a hot 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Old Tappan, is another warm month, with temperature in the range of an average low of 67.3°F (19.6°C) and an average high of 82.9°F (28.3°C). As Old Tappan transitions from July to August, the average high-temperatures adjust to a still moderately hot 82.9°F (28.3°C), nearly the same as the previous 84.9°F (29.4°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Old Tappan, New Jersey, with an average temperature varying between 59.9°F (15.5°C) and 75.4°F (24.1°C). September brings a slight decrease in temperature, down from a warm 82.9°F (28.3°C) in August to a still moderately hot 75.4°F (24.1°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Old Tappan, New Jersey, with temperature in the range of an average high of 63.1°F (17.3°C) and an average low of 50.2°F (10.1°C). Old Tappan's progression into October includes a drop in the average high-temperature, from a moderately hot 75.4°F (24.1°C) in September to a refreshing 63.1°F (17.3°C). Weather in October »
Weather in November
November, the last month of the autumn in Old Tappan, is also a fresh month, with an average temperature fluctuating between 38.5°F (3.6°C) and 50.9°F (10.5°C). Old Tappan's November weather shows a moderate shift in high-temperatures, falling from October's enjoyable 63.1°F (17.3°C) to a cool 50.9°F (10.5°C). Weather in November »
Weather in December
December, the first month of the winter in Old Tappan, is also an icy month, with an average temperature fluctuating between 41.7°F (5.4°C) and 30.9°F (-0.6°C). December's arrival correlates with a reduction in the average high-temperature, down from a cool 50.9°F (10.5°C) in November to an icy 41.7°F (5.4°C). Weather in December »
Updated: Jun 25, 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 time of year?
In Old Tappan, January is known for its average lowest temperatures, reaching a high of 35.4°F (1.9°C) and a low of 24.1°F (-4.4°C).
How many days does it rain?
In Old Tappan, 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 Old Tappan?
January through April, November and December are months with snowfall.
How many days does it snow?
In Old Tappan, New Jersey, during the entire year, snow falls for 25.5 days and aggregates up to 10.55" (268mm) of snow.
What are the months with the lowest UV index?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the most humid month?
The most humid month is February, with an average relative humidity of 77%.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 4.6h of sunshine.
What is the snowiest month?
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)?
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?
May through October are months without snowfall.
When are the longest days?
The month with the longest days in Old Tappan is June, with an average of 15h and 6min of daylight.
What is the month with the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What month is the hottest?
July is the warmest month, with an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 68°F (20°C).
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.3h of sunshine.
What is the least humid month?
August is the least humid month, with an average relative humidity of 68%.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 11.6 days and typically collects 1.73" (44mm) of precipitation.
What is the wettest month?
December is the month with the most rainfall. Rain falls for 10.7 days and accumulates 3.46" (88mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Old Tappan, 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
Old Tappan, 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
Old Tappan, 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
Old Tappan, NJ
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (68%).
Average rainfall
Old Tappan, 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
Old Tappan, 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
Old Tappan, 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
Old Tappan, 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
Old Tappan, 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
Old Tappan, 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
Old Tappan, 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
Old Tappan, 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
Old Tappan, 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).
Old Tappan, New Jersey, USA
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