Climate and monthly weather forecastCedar Knolls, NJ
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Cedar Knolls, New Jersey, with an average temperature varying between 22.5°F (-5.3°C) and 34.9°F (1.6°C). With average high temperatures of 34.9°F (1.6°C) and lows of 22.5°F (-5.3°C), January is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Cedar Knolls, is also an icy month, with temperature in the range of an average high of 38.3°F (3.5°C) and an average low of 24.1°F (-4.4°C). With February's arrival, Cedar Knolls's weather records an average high-temperature of a still icy 38.3°F (3.5°C), marking little difference from January's 34.9°F (1.6°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Cedar Knolls, New Jersey, with temperature in the range of an average low of 31.5°F (-0.3°C) and an average high of 46°F (7.8°C). The shift into March is marked by a modest rise in the average high-temperature, moving from February's wintry 38.3°F (3.5°C) to a frosty 46°F (7.8°C). Weather in March »Weather in April
April in Cedar Knolls, New Jersey, is a mild spring month, with an average temperature ranging between max 58.3°F (14.6°C) and min 41.7°F (5.4°C). With the transition into April, Cedar Knolls experiences an increase in average high-temperatures, moving up from a chilly 46°F (7.8°C) in March to a mild 58.3°F (14.6°C). Weather in April »Weather in May
May, the last month of the spring in Cedar Knolls, is a pleasant month, with an average temperature ranging between max 68.9°F (20.5°C) and min 51.3°F (10.7°C). With the onset of May, Cedar Knolls's average high-temperature sees a rise, moving from April's refreshing 58.3°F (14.6°C) to an agreeable 68.9°F (20.5°C). Weather in May »Weather in June
June, the first month of the summer in Cedar Knolls, is a moderately hot month, with temperature in the range of an average high of 77.4°F (25.2°C) and an average low of 58.8°F (14.9°C). Observing a minor shift, the average high-temperature during June adjusts from May's pleasant 68.9°F (20.5°C) to a moderately hot 77.4°F (25.2°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Cedar Knolls, New Jersey, with temperature in the range of an average high of 83.7°F (28.7°C) and an average low of 65.7°F (18.7°C). July is the month when Cedar Knolls's temperatures reach their peak, with averages of 83.7°F (28.7°C) and lows of 65.7°F (18.7°C). The heat index in July is computed to be a tropical 91.4°F (33°C). Weather in July »Weather in August
August, the last month of the summer in Cedar Knolls, is another warm month, with an average temperature varying between 64°F (17.8°C) and 81.5°F (27.5°C). The average high-temperature during August is a still moderately hot 81.5°F (27.5°C), almost matching the conditions of the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Cedar Knolls, is also a moderately hot month, with an average temperature varying between 74.5°F (23.6°C) and 57.2°F (14°C). Cedar Knolls's weather subtly changes with the onset of September, barely falling from a warm 81.5°F (27.5°C) in August to a still moderately hot 74.5°F (23.6°C). Weather in September »Weather in October
October, like September, in Cedar Knolls, New Jersey, is another comfortable autumn month, with an average temperature fluctuating between 47.3°F (8.5°C) and 62.2°F (16.8°C). The start of October comes with a reduction in the average high-temperature, receding from a moderately hot 74.5°F (23.6°C) in September to a comfortable 62.2°F (16.8°C). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in Cedar Knolls, New Jersey, with an average temperature varying between 50.5°F (10.3°C) and 36.5°F (2.5°C). In Cedar Knolls, the average high-temperature in November decreases from an enjoyable 62.2°F (16.8°C) in October to a fresh 50.5°F (10.3°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Cedar Knolls, New Jersey, with an average temperature ranging between max 40.8°F (4.9°C) and min 29.5°F (-1.4°C). December brings a minor decrease, with the average high-temperature reducing from a cool 50.5°F (10.3°C) in November to an icy 40.8°F (4.9°C). Weather in December »Updated: Jul 15, 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 stands out as Cedar Knolls's coldest month, with temperatures ranging between an average high of 34.9°F (1.6°C) and a low of 22.5°F (-5.3°C).
The months with the least rainfall are January, February and September Rain falls for 8.3 days and accumulates 1.57" (40mm) of rain.
Throughout the year, there are 157.9 rainfall days, and 27.05" (687mm) of precipitation is accumulated.
Months with snowfall in Cedar Knolls are January through May, November and December.
In Cedar Knolls, New Jersey, during the entire year, snow falls for 24 days and aggregates up to 9.72" (247mm) of snow.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
February, October and December, with an average relative humidity of 80%, are most humid months.
The month with the least sunshine is February, with an average of 4.6h of sunshine.
The month with the most snowfall is March, when snow falls for 5.2 days and typically aggregates up to 3.7" (94mm) 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 is the least humid month, with an average relative humidity of 74%.
June through October are months without snowfall.
June has the longest days of the year, with an average of 15h and 6min of daylight.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
Temperature readings reach their annual highs in July, averaging 83.7°F (28.7°C) and a minimum average of 65.7°F (18.7°C).
July is the month with the most rainfall. Rain falls for 17.6 days and accumulates 3.19" (81mm) of precipitation.
The month with the most sunshine is July, with an average of 10.3h of sunshine.
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Cedar Knolls, NJ
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (34.9°F).
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure
Cedar Knolls, 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:
29.99"Hg - Average pressure in September:
30.06"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
Cedar Knolls, NJ
- Average wind speed in January:
8.3mph - Average wind speed in February:
8.3mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8mph - Average wind speed in May:
6.5mph - Average wind speed in June:
6.1mph
- Average wind speed in July:
5.4mph - Average wind speed in August:
5.3mph - Average wind speed in September:
5.8mph - Average wind speed in October:
6.9mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.6mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity
Cedar Knolls, NJ
The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall
Cedar Knolls, NJ
- Average rainfall in January:
1.57" - Average rainfall in February:
1.57" - Average rainfall in March:
2.17" - Average rainfall in April:
2.24" - Average rainfall in May:
2.83" - Average rainfall in June:
2.56"
The wettest month (with the highest rainfall) is July (3.19").
The driest months (with the least rainfall) are January, February and September (1.57").
Average rainfall days
Cedar Knolls, NJ
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
9.1 days - Average rainfall days in March:
11.7 days - Average rainfall days in April:
15.4 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
16.4 days
- Average rainfall days in July:
17.6 days - Average rainfall days in August:
15.5 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
12.8 days - Average rainfall days in November:
9 days - Average rainfall days in December:
10.9 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.3 days).
Average snowfall
Cedar Knolls, NJ
The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Cedar Knolls, NJ
- Average snowfall days in January:
6.6 days - Average snowfall days in February:
6.8 days - Average snowfall days in March:
5.2 days - Average snowfall days in April:
0.7 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:
0.8 days - Average snowfall days in December:
3.8 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Cedar Knolls, NJ
- Average daylight in January:
9h and 36min - 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 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
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:
4h and 54min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 12min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 30min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 48min
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
Cedar Knolls, NJ
- Average sunshine days in January:
18.3 days - Average sunshine days in February:
14.4 days - Average sunshine days in March:
14.4 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
11 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
10.9 days - Average sunshine days in August:
12.8 days - Average sunshine days in September:
15 days - Average sunshine days in October:
16.2 days - Average sunshine days in November:
19 days - Average sunshine days in December:
16.8 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.9 days).
Average UV index
Cedar Knolls, 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
Cedar Knolls, NJ
The months with the most cloud cover are February, March and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility
Cedar Knolls, NJ
The months with the highest visibility are January, February, March, April, July, August, October, November and December (6mi).
The months with the lowest visibility are May, June and September (5mi).
