Climate and monthly weather forecastDemarest, NJ
Climate and monthly weather forecast
Weather in January
January, like December, in Demarest, New Jersey, is a wintry winter month, with an average temperature fluctuating between 24.1°F (-4.4°C) and 35.4°F (1.9°C). The month of January sees the lowest average temperatures, reaching 35.4°F (1.9°C) at the peak and 24.1°F (-4.4°C) at the low. Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Demarest, New Jersey, with an average temperature varying between 25.7°F (-3.5°C) and 38.8°F (3.8°C). The onset of February brings with it an average high-temperature of a still icy 38.8°F (3.8°C), showing a negligible variation from the month before. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Demarest, New Jersey, with an average temperature ranging between min 32.7°F (0.4°C) and max 46.6°F (8.1°C). In March, the average high-temperature marginally rises from an icy 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 mild spring month in Demarest, New Jersey, with an average temperature varying between 43.2°F (6.2°C) and 58.3°F (14.6°C). An escalation in the average high-temperature is seen with the onset of April, moving from a frosty 46.6°F (8.1°C) in March to a refreshing 58.3°F (14.6°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Demarest, New Jersey, with an average temperature varying between 69.6°F (20.9°C) and 52.7°F (11.5°C). With the onset of May, Demarest's average high-temperature experiences a rise, moving from April's mild 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 Demarest, New Jersey, with an average temperature fluctuating between 78.4°F (25.8°C) and 60.6°F (15.9°C). June comes with a subtle rise, with the average high-temperature adjusting from a pleasant 69.6°F (20.9°C) in May to a warm 78.4°F (25.8°C). Weather in June »Weather in July
July, like June, in Demarest, New Jersey, is another warm summer month, with an average temperature fluctuating between 84.9°F (29.4°C) and 68°F (20°C). July is the warmest month, exhibiting average temperatures of 84.9°F (29.4°C) at the peak and 68°F (20°C) at the base. For most parts of July, the heat index is computed to be a tropical 93.2°F (34°C). Weather in July »Weather in August
August, the last month of the summer in Demarest, 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). Demarest, New Jersey, commences August with an average high-temperature of a still warm 82.9°F (28.3°C), maintaining a close resemblance to the previous month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Demarest, New Jersey, with an average temperature varying between 75.4°F (24.1°C) and 59.9°F (15.5°C). September brings a slight decrease in the average high-temperature, shifting from a moderately hot 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 Demarest, New Jersey, is another comfortable autumn month, with an average temperature ranging between min 50.2°F (10.1°C) and max 63.1°F (17.3°C). October implies a gentle temperature shift, with average high-temperatures reducing from September's warm 75.4°F (24.1°C) to a comfortable 63.1°F (17.3°C). Weather in October »Weather in November
November, the last month of the autumn in Demarest, is another cool month, with an average temperature ranging between min 38.5°F (3.6°C) and max 50.9°F (10.5°C). November comes with a decrease in the average high-temperature, falling from an enjoyable 63.1°F (17.3°C) in October to a cool 50.9°F (10.5°C). Weather in November »Weather in December
December, the first month of the winter in Demarest, is also an icy month, with an average temperature ranging between max 41.7°F (5.4°C) and min 30.9°F (-0.6°C). With the beginning of December, the average high-temperature shows a decrease, transitioning from a cool 50.9°F (10.5°C) in November to an icy 41.7°F (5.4°C). Weather in December »Updated: Aug 24, 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
In Demarest, the average lowest temperatures are observed in January, with a high of 35.4°F (1.9°C) and a low of 24.1°F (-4.4°C).
Throughout the year, there are 153.9 rainfall days, and 30.75" (781mm) of precipitation is accumulated.
Months with snowfall are January through April, November and December.
In Demarest, during the entire year, snow falls for 25.5 days and aggregates up to 10.55" (268mm) of snow.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
With an average relative humidity of 77%, February is the most humid month in Demarest, New Jersey.
With an average of 4.6h of sunshine, February has the least sunshine of the year.
The month with the most snowfall is March, when snow falls for 5.4 days and typically aggregates up to 3.07" (78mm) 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.
In Demarest, snow does not fall in May through October.
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.
Demarest's temperature records reveal July as the warmest month, marked by average highs of 84.9°F (29.4°C) and lows of 68°F (20°C).
July has the most sunshine of the year in Demarest, with an average of 10.3h of sunshine.
August is the least humid month, with an average relative humidity of 68%.
September is the month with the least rainfall. Rain falls for 11.6 days and accumulates 1.73" (44mm) of precipitation.
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.
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Demarest, 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
Demarest, 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
Demarest, 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
Demarest, NJ
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (68%).
Average rainfall
Demarest, 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
Demarest, 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
Demarest, 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
Demarest, 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
Demarest, 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:
5h and 0min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 6min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 36min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 42min
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
Demarest, 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
Demarest, 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
Demarest, 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
Demarest, 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).
