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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 an icy winter month in Allentown, New Jersey, with an average temperature ranging between max 37.4°F (3°C) and min 25°F (-3.9°C). Allentown's January weather, with an average high temperature of 37.4°F (3°C) and an average low temperature of 25°F (-3.9°C), tends to be the coldest of the year. Weather in January »
Weather in February
February, the last month of the winter in Allentown, is also an icy month, with temperature in the range of an average high of 41.2°F (5.1°C) and an average low of 27°F (-2.8°C). The arrival of February sees an average high-temperature of a still cold 41.2°F (5.1°C), hardly diverging from January's 37.4°F (3°C). Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Allentown, New Jersey, with temperature in the range of an average low of 34.2°F (1.2°C) and an average high of 48.7°F (9.3°C). The shift into March is characterized by a subtle rise in the average high-temperature, transitioning from February's icy 41.2°F (5.1°C) to a frosty 48.7°F (9.3°C). Weather in March »
Weather in April
April in Allentown, New Jersey, is a refreshing spring month, with an average temperature fluctuating between 60.4°F (15.8°C) and 43.9°F (6.6°C). As Allentown welcomes April, the average high-temperature sees a rise, transitioning from a chilly 48.7°F (9.3°C) in March to a mild 60.4°F (15.8°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Allentown, New Jersey, with an average temperature varying between 70.3°F (21.3°C) and 53.4°F (11.9°C). A rise in the average high-temperature is observed during May, moving from a moderate 60.4°F (15.8°C) in April to a pleasant 70.3°F (21.3°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Allentown, New Jersey, with an average temperature varying between 61.3°F (16.3°C) and 78.4°F (25.8°C). With the onset of June, Allentown's weather sees a minor temperature rise, transitioning from a pleasant 70.3°F (21.3°C) in May to a moderately hot 78.4°F (25.8°C). Weather in June »
Weather in July
July, like June, in Allentown, New Jersey, is another warm summer month, with temperature in the range of an average low of 67.6°F (19.8°C) and an average high of 84.4°F (29.1°C). July temperatures tend to peak at an average high of 84.4°F (29.1°C) and dip to a low of 67.6°F (19.8°C). July's mean heat index is appraised at 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 Allentown, New Jersey, with an average temperature fluctuating between 82.6°F (28.1°C) and 66.2°F (19°C). The shift into August records an average high-temperature of a still moderately hot 82.6°F (28.1°C), subtly varied from July's 84.4°F (29.1°C). Weather in August »
Weather in September
September, the first month of the autumn in Allentown, is still a warm month, with an average temperature fluctuating between 59.9°F (15.5°C) and 75.9°F (24.4°C). Allentown's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's 82.6°F (28.1°C) to a still moderately hot 75.9°F (24.4°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Allentown, New Jersey, with an average temperature fluctuating between 50°F (10°C) and 64.4°F (18°C). In Allentown, entering October brings a temperature decrement, reducing from September's moderately hot 75.9°F (24.4°C) to an enjoyable 64.4°F (18°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Allentown, New Jersey, with an average temperature ranging between min 38.8°F (3.8°C) and max 52.7°F (11.5°C). With the onset of November, Allentown's average high-temperature adjusts, receding from October's refreshing 64.4°F (18°C) to a cool 52.7°F (11.5°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Allentown, New Jersey, with an average temperature fluctuating between 43.7°F (6.5°C) and 32.2°F (0.1°C). The onset of December coincides with a reduction in the average high-temperature, falling from a fresh 52.7°F (11.5°C) in November to a frosty 43.7°F (6.5°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Allentown?
January, characterized by an average high temperature of 37.4°F (3°C) and a low temperature of 25°F (-3.9°C), is generally the coldest month in Allentown, New Jersey.
How many days does it rain in Allentown?
Throughout the year, there are 152.9 rainfall days, and 28.78" (731mm) of precipitation is accumulated.
When does it snow in Allentown?
Months with snowfall in Allentown are January through May, November and December.
How much does it snow in Allentown?
Throughout the year, in Allentown, there are 17.7 snowfall days, and 8.43" (214mm) of snow is accumulated.
What are the months with the lowest UV index in Allentown?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the month with the least sunshine in Allentown?
February has the least sunshine of the year in Allentown, with an average of 4.8h of sunshine.
When does it snow the most in Allentown?
The month with the most snowfall in Allentown, New Jersey, is March, when snow falls for 3.6 days and typically aggregates up to 3.11" (79mm) of snow.
When is Daylight Saving Time (DST) in Allentown?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Allentown, 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.
What is the least humid month in Allentown?
The least humid month in Allentown is April, with an average relative humidity of 73%.
When is the highest UV index in Allentown?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When it does not snow in Allentown?
In Allentown, snow does not fall in June through October.
When are the longest days in Allentown?
The month with the longest days in Allentown, New Jersey, is June, with an average of 15h and 0min of daylight.
What month is the hottest in Allentown?
Allentown's July weather, marked by an average high temperature of 84.4°F (29.1°C) and an average low temperature of 67.6°F (19.8°C), is the warmest in the year.
What is the wettest month in Allentown?
The month with the most rainfall in Allentown, New Jersey, is July, when the rain falls for 17.8 days and typically aggregates up to 3.39" (86mm) of precipitation.
What month has the most sunshine in Allentown?
The month with the most sunshine in Allentown is July, with an average of 10.5h of sunshine.
What is the driest month in Allentown?
The month with the least rainfall is September, when the rain falls for 12.7 days and typically collects 1.65" (42mm) of precipitation.
What is the most humid month in Allentown?
The most humid month is October, with an average relative humidity of 79%.
What is the month with the shortest days in Allentown?
The month with the shortest days in Allentown, New Jersey, is December, with an average of 9h and 24min of daylight.
Average temperature
Allentown, NJ
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (37.4°F).
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure
Allentown, NJ
- Average pressure in January:
30.07"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.99"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:
30.05"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
Allentown, NJ
- Average wind speed in January:
8.5mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.8mph - Average wind speed in April:
8.6mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.4mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.5mph - Average wind speed in September:
6.1mph - Average wind speed in October:
7.3mph - Average wind speed in November:
7.6mph - Average wind speed in December:
7.9mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity
Allentown, NJ
The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall
Allentown, NJ
- Average rainfall in January:
1.73" - Average rainfall in February:
2.01" - Average rainfall in March:
2.6" - Average rainfall in April:
2.2" - Average rainfall in May:
2.68" - Average rainfall in June:
2.24"
- Average rainfall in July:
3.39" - Average rainfall in August:
3.15" - Average rainfall in September:
1.65" - Average rainfall in October:
2.17" - Average rainfall in November:
2.05" - Average rainfall in December:
2.91"
The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days
Allentown, NJ
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
9.2 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
14.1 days - Average rainfall days in May:
16.2 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
17.8 days - Average rainfall days in August:
15.6 days - Average rainfall days in September:
12.7 days - Average rainfall days in October:
11.3 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
10.3 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (8.3 days).
Average snowfall
Allentown, NJ
- Average snowfall in January:
1.89" - Average snowfall in February:
1.73" - Average snowfall in March:
3.11" - Average snowfall in April:
0.08" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is March (3.11").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Allentown, NJ
- Average snowfall days in January:
5.3 days - Average snowfall days in February:
4.9 days - Average snowfall days in March:
3.6 days - Average snowfall days in April:
0.3 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:
0.5 days - Average snowfall days in December:
3 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Allentown, 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 2min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 3min - Average sunshine in December:
5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Allentown, NJ
- Average sunshine days in January:
19.1 days - Average sunshine days in February:
15 days - Average sunshine days in March:
15.2 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
12 days - Average sunshine days in June:
11.7 days
- Average sunshine days in July:
11 days - Average sunshine days in August:
12.8 days - Average sunshine days in September:
14.7 days - Average sunshine days in October:
17.9 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
19.1 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11 days).
Average UV index
Allentown, NJ
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Allentown, NJ
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Allentown, 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).
Allentown, New Jersey, USA
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