Climate and monthly weather forecastDenville, NJ
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Denville, New Jersey, with temperature in the range of an average low of 21.6°F (-5.8°C) and an average high of 34.5°F (1.4°C). In Denville, the month of January registers the lowest temperatures, averaging 34.5°F (1.4°C) at the peak and 21.6°F (-5.8°C) at the lowest. Weather in January »Weather in February
February, the last month of the winter in Denville, is also a wintry month, with an average temperature fluctuating between 23.5°F (-4.7°C) and 37.8°F (3.2°C). Denville's February showcases an average high-temperature of a still cold 37.8°F (3.2°C), hardly distinct from January's 34.5°F (1.4°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Denville, New Jersey, with an average temperature ranging between min 30.6°F (-0.8°C) and max 45.9°F (7.7°C). March introduces a minor temperature shift, with average high-temperatures adjusting from February's icy 37.8°F (3.2°C) to a chilly 45.9°F (7.7°C). Weather in March »Weather in April
April in Denville, New Jersey, is a moderate spring month, with temperature in the range of an average high of 58.3°F (14.6°C) and an average low of 40.6°F (4.8°C). April's arrival coincides with a temperature rise, moving from March's frosty 45.9°F (7.7°C) 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 Denville, New Jersey, with an average temperature fluctuating between 50.7°F (10.4°C) and 68.9°F (20.5°C). The transition to May introduces an increase in the average high-temperature, shifting from a mild 58.3°F (14.6°C) in April to an agreeable 68.9°F (20.5°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Denville, New Jersey, with temperature in the range of an average high of 77°F (25°C) and an average low of 57.9°F (14.4°C). June brings a slight increase in the average high-temperature, progressing from an agreeable 68.9°F (20.5°C) in May to a moderately hot 77°F (25°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Denville, New Jersey, with an average temperature ranging between max 83.1°F (28.4°C) and min 64.8°F (18.2°C). Denville's warmest month, July, registers temperatures that range from a high of 83.1°F (28.4°C) to a low of 64.8°F (18.2°C). The average heat index in July is evaluated at a hot 89.6°F (32°C). Weather in July »Weather in August
August, the last month of the summer in Denville, is another warm month, with an average temperature ranging between max 81.3°F (27.4°C) and min 63°F (17.2°C). Denville's shift from July to August is accompanied by an average high-temperature of a still warm 81.3°F (27.4°C), a slight deviation from 83.1°F (28.4°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Denville, New Jersey, with an average temperature fluctuating between 56.3°F (13.5°C) and 74.3°F (23.5°C). During the shift to September, a minor reduction in average high-temperature is observed, shifting from a warm 81.3°F (27.4°C) in August to a still moderately hot 74.3°F (23.5°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Denville, New Jersey, with an average temperature varying between 46.6°F (8.1°C) and 62.1°F (16.7°C). The shift to October brings a decrease in the average high-temperature, falling from a moderately hot 74.3°F (23.5°C) in September to an enjoyable 62.1°F (16.7°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Denville, New Jersey, with an average temperature ranging between max 49.8°F (9.9°C) and min 36°F (2.2°C). The commencement of November indicates a shift in the average high-temperature, receding from October's refreshing 62.1°F (16.7°C) to a chilly 49.8°F (9.9°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Denville, New Jersey, with an average temperature varying between 29.1°F (-1.6°C) and 40.1°F (4.5°C). With December's arrival, Denville sees a decrease in average high-temperatures, moving from a chilly 49.8°F (9.9°C) in November to a wintry 40.1°F (4.5°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
January, with its average high-temperature of 34.5°F (1.4°C) and an average low-temperature of 21.6°F (-5.8°C), holds the record as the coldest month.
In Denville, during the entire year, the rain falls for 161.2 days and collects up to 33.74" (857mm) of precipitation.
January through May, October through December are months with snowfall.
Throughout the year, in Denville, there are 30.9 snowfall days, and 15.79" (401mm) of snow is accumulated.
The months with the lowest UV index in Denville, New Jersey, are January through March, November and December, with an average maximum UV index of 2.
The months with the highest humidity in Denville are February, October and December, with an average relative humidity of 80%.
February has the least sunshine of the year, with an average of 4.4h of sunshine.
The month with the most snowfall in Denville, New Jersey, is March, when snow falls for 6.1 days and typically aggregates up to 4.69" (119mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Denville, 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.
With an average relative humidity of 74%, April is the least humid month in Denville, New Jersey.
In Denville, New Jersey, snow does not fall in June through September.
The month with the longest days is June, with an average of 15h and 6min of daylight.
The months with the highest UV index in Denville, New Jersey, are June through August, with an average maximum UV index of 6.
July is the warmest month, with an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 64.8°F (18.2°C).
The month with the most sunshine is July, with an average of 10.2h of sunshine.
September is the month with the least rainfall in Denville, New Jersey. Rain falls for 12.5 days and accumulates 1.77" (45mm) of precipitation.
The month with the most rainfall in Denville is December, when the rain falls for 11.2 days and typically aggregates up to 3.43" (87mm) of precipitation.
With an average of 9h and 18min of daylight, December has the shortest days of the year in Denville, New Jersey.
Average temperature
Denville, NJ
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.5°F).
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure
Denville, NJ
- Average pressure in January:
30.06"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
Denville, NJ
- Average wind speed in January:
8.1mph - Average wind speed in February:
8.1mph - Average wind speed in March:
8.3mph - Average wind speed in April:
7.9mph - Average wind speed in May:
6.4mph - Average wind speed in June:
6mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.7mph - Average wind speed in October:
6.7mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7.5mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
Denville, 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
Denville, NJ
- Average rainfall in January:
2.28" - Average rainfall in February:
2.24" - Average rainfall in March:
2.87" - Average rainfall in April:
3.03" - Average rainfall in May:
3.35" - Average rainfall in June:
2.95"
- Average rainfall in July:
3.31" - Average rainfall in August:
2.64" - Average rainfall in September:
1.77" - Average rainfall in October:
3.31" - Average rainfall in November:
2.56" - Average rainfall in December:
3.43"
The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days
Denville, NJ
- Average rainfall days in January:
8.2 days - Average rainfall days in February:
9.9 days - Average rainfall days in March:
12.1 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
16.3 days
- Average rainfall days in July:
17.4 days - Average rainfall days in August:
15 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
10.5 days - Average rainfall days in December:
11.2 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (8.2 days).
Average snowfall
Denville, NJ
- Average snowfall in January:
2.91" - Average snowfall in February:
4.29" - Average snowfall in March:
4.69" - Average snowfall in April:
0.31" - Average snowfall in May:
0.31" - Average snowfall in June:
0"
The month with the highest snowfall is March (4.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Denville, NJ
- Average snowfall days in January:
8.5 days - Average snowfall days in February:
8.7 days - Average snowfall days in March:
6.1 days - Average snowfall days in April:
1.1 days - Average snowfall days in May:
0.2 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:
1.5 days - Average snowfall days in December:
4.7 days
The month with the highest number of snowfall days is February (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Denville, 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 48min - Average sunshine in February:
4h and 24min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 12min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
9h and 54min - Average sunshine in September:
8h and 24min - Average sunshine in October:
5h and 24min - 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 12min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days
Denville, NJ
- Average sunshine days in January:
16.5 days - Average sunshine days in February:
12.9 days - Average sunshine days in March:
14.4 days - Average sunshine days in April:
11.2 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
11.9 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
15.6 days - Average sunshine days in October:
15.8 days - Average sunshine days in November:
17.4 days - Average sunshine days in December:
16.1 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is April (11.2 days).
Average UV index
Denville, 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
Denville, NJ
The months with the most cloud cover are February, March and December (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility
Denville, NJ
The months with the highest visibility are January, April, July, August, October, November and December (6mi).
The months with the lowest visibility are February, March, May, June and September (5mi).
