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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 Allendale, New Jersey, is another cold winter month, with an average temperature fluctuating between 22.8°F (-5.1°C) and 35.2°F (1.8°C). In Allendale, the month of January is known for its lowest average temperatures, reaching a high of 35.2°F (1.8°C) and a low of 22.8°F (-5.1°C). Weather in January »
Weather in February
February, the last month of the winter in Allendale, is also an icy month, with an average temperature fluctuating between 38.3°F (3.5°C) and 24.3°F (-4.3°C). As Allendale transitions into February, the average high-temperature stands at a still cold 38.3°F (3.5°C), offering little variation from the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Allendale, is a chilly month, with temperature in the range of an average high of 46.6°F (8.1°C) and an average low of 32.2°F (0.1°C). With the onset of March, Allendale's average high-temperature sees a modest rise, moving from February's wintry 38.3°F (3.5°C) to a chilly 46.6°F (8.1°C). Weather in March »
Weather in April
April is a refreshing spring month in Allendale, New Jersey, with an average temperature varying between 58.6°F (14.8°C) and 42.3°F (5.7°C). April's arrival signals a temperature shift, moving from a chilly 46.6°F (8.1°C) in March to a refreshing 58.6°F (14.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Allendale, New Jersey, with an average temperature ranging between min 51.8°F (11°C) and max 69.8°F (21°C). The arrival of May signals an increase in the average high-temperature, moving from a refreshing 58.6°F (14.8°C) in April to a pleasant 69.8°F (21°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Allendale, New Jersey, with an average temperature fluctuating between 60.1°F (15.6°C) and 78.4°F (25.8°C). As Allendale transitions into June, the average high-temperature is observed to slightly rise from a pleasant 69.8°F (21°C) in May to a warm 78.4°F (25.8°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Allendale, New Jersey, with an average temperature fluctuating between 66.6°F (19.2°C) and 84.7°F (29.3°C). July, with its average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 66.6°F (19.2°C), holds the record as the warmest month. The heat index value for July is computed to be a hot 93.2°F (34°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Allendale, New Jersey, with an average temperature varying between 65.7°F (18.7°C) and 82.9°F (28.3°C). Allendale experiences a recorded average high-temperature of a still moderately hot 82.9°F (28.3°C) in August, closely aligned with July's 84.7°F (29.3°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Allendale, New Jersey, with an average temperature fluctuating between 75.2°F (24°C) and 58.3°F (14.6°C). The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a warm 82.9°F (28.3°C) in August to a still moderately hot 75.2°F (24°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Allendale, New Jersey, with an average temperature ranging between min 48.4°F (9.1°C) and max 62.8°F (17.1°C). The average high-temperature decreases in October, shifting from a moderately hot 75.2°F (24°C) in September to an enjoyable 62.8°F (17.1°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Allendale, New Jersey, with temperature in the range of an average low of 37°F (2.8°C) and an average high of 50.7°F (10.4°C). With the onset of November, Allendale's average high-temperature adjusts, receding from October's refreshing 62.8°F (17.1°C) to a fresh 50.7°F (10.4°C). Weather in November »
Weather in December
December, the first month of the winter in Allendale, is also a wintry month, with an average temperature fluctuating between 40.8°F (4.9°C) and 30.4°F (-0.9°C). Allendale's average high-temperature decreases in December, falling from a fresh 50.7°F (10.4°C) in November to an icy 40.8°F (4.9°C). Weather in December »
Updated: Jul 12, 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 part of the year is the coldest in Allendale?
January, marked by an average high-temperature of 35.2°F (1.8°C) and a low-temperature of 22.8°F (-5.1°C), is the coldest month.
How much does it rain?
Throughout the year, there are 157.3 rainfall days, and 32.72" (831mm) of precipitation is accumulated.
When does it snow?
January through April, October through December are months with snowfall.
How many days does it snow?
In Allendale, during the entire year, snow falls for 28 days and aggregates up to 13.82" (351mm) of snow.
What is the month 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 are the most humid months?
February and December, with an average relative humidity of 78%, are most humid months.
What is the snowiest month?
February is the month with the most snowfall in Allendale. Snow falls for 7.9 days and accumulates 4.09" (104mm) of snow.
What is the month with the least sunshine in Allendale?
February has the least sunshine of the year, with an average of 4.5h of sunshine.
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 September are months without snowfall.
When are the longest days?
The month with the longest days is June, with an average of 15h and 6min of daylight.
When is 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?
Allendale experiences its highest temperatures in July, with an average peak of 84.7°F (29.3°C) and a low of 66.6°F (19.2°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.2h of sunshine.
What is the least humid month?
August is the least humid month, with an average relative humidity of 70%.
What is the driest month?
September is the month with the least rainfall. Rain falls for 12.9 days and accumulates 1.89" (48mm) of precipitation.
What is the rainiest month?
The month with the most rainfall is December, when the rain falls for 10.6 days and typically aggregates up to 3.58" (91mm) 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
Allendale, NJ
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (35.2°F).
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure
Allendale, 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
Allendale, NJ
- Average wind speed in January:
7.9mph - Average wind speed in February:
7.8mph - Average wind speed in March:
8mph - Average wind speed in April:
7.8mph - Average wind speed in May:
6.4mph - Average wind speed in June:
6mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.4mph - Average wind speed in September:
5.8mph - Average wind speed in October:
6.8mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7.3mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity
Allendale, NJ
The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is August (70%).
Average rainfall
Allendale, NJ
- Average rainfall in January:
2.28" - Average rainfall in February:
2.2" - Average rainfall in March:
2.72" - Average rainfall in April:
2.8" - Average rainfall in May:
2.87" - Average rainfall in June:
2.83"
- Average rainfall in July:
3.15" - Average rainfall in August:
2.64" - Average rainfall in September:
1.89" - Average rainfall in October:
3.15" - Average rainfall in November:
2.6" - Average rainfall in December:
3.58"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days
Allendale, NJ
- Average rainfall days in January:
8.4 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
16.4 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
15.3 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
13.1 days - Average rainfall days in November:
9.6 days - Average rainfall days in December:
10.6 days
The months with the highest number of rainy days are May and July (16.8 days).
The month with the least rainy days is January (8.4 days).
Average snowfall
Allendale, NJ
The month with the highest snowfall is February (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Allendale, NJ
- Average snowfall days in January:
7.3 days - Average snowfall days in February:
7.9 days - Average snowfall days in March:
6.3 days - Average snowfall days in April:
0.8 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:
0.1 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
4.5 days
The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Allendale, 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:
4h and 5min - Average sunshine in February:
4h and 3min - Average sunshine in March:
6h and 0min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 3min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 4min
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 30min).
Average sunshine days
Allendale, NJ
- Average sunshine days in January:
17.6 days - Average sunshine days in February:
13.8 days - Average sunshine days in March:
14.2 days - Average sunshine days in April:
12.4 days - Average sunshine days in May:
12.6 days - Average sunshine days in June:
11.5 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
13.6 days - Average sunshine days in September:
15.1 days - Average sunshine days in October:
16.7 days - Average sunshine days in November:
18.7 days - Average sunshine days in December:
16.7 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (11.5 days).
Average UV index
Allendale, 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
Allendale, NJ
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Allendale, NJ
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Allendale, New Jersey, USA
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