Climate and monthly weather forecast
Allentown, WV

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Weather in January

January, the same as December, is a wintry winter month in Allentown, West Virginia, with an average temperature ranging between min 24.3°F (-4.3°C) and max 37.8°F (3.2°C). January, on average, is the coldest month, registering a high temperature of 37.8°F (3.2°C) and a low of 24.3°F (-4.3°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Allentown, West Virginia, with an average temperature varying between 27.9°F (-2.3°C) and 42.4°F (5.8°C). The shift into February reveals an average high-temperature of a still cold 42.4°F (5.8°C), closely mirroring January's climate. Weather in February »

Weather in March

March, the first month of the spring in Allentown, is a fresh month, with an average temperature fluctuating between 51.6°F (10.9°C) and 35.2°F (1.8°C). The beginning of March marks a shift in the average high-temperature, moving from February's wintry 42.4°F (5.8°C) to a fresh 51.6°F (10.9°C). Weather in March »

Weather in April

April in Allentown, West Virginia, is an enjoyable spring month, with temperature in the range of an average low of 44.4°F (6.9°C) and an average high of 64°F (17.8°C). Allentown's weather shows a temperature rise with the arrival of April, moving from a cool 51.6°F (10.9°C) in March to an enjoyable 64°F (17.8°C). Weather in April »

Weather in May

May, the last month of the spring in Allentown, is a moderately hot month, with an average temperature ranging between min 53.8°F (12.1°C) and max 74.8°F (23.8°C). May signals a shift in the average high-temperature, moving from April's enjoyable 64°F (17.8°C) to a moderately hot 74.8°F (23.8°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Allentown, West Virginia, with temperature in the range of an average low of 59.5°F (15.3°C) and an average high of 81.5°F (27.5°C). As Allentown welcomes June, the average high-temperature sees a modest rise, transitioning from 74.8°F (23.8°C) in May to a still moderately hot 81.5°F (27.5°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Allentown, West Virginia, with temperature in the range of an average low of 63.5°F (17.5°C) and an average high of 85.5°F (29.7°C). The temperatures reach their highest averages in July, with highs of 85.5°F (29.7°C) and lows of 63.5°F (17.5°C). During July, the heat index is computed to be a fiery hot 96.8°F (36°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Allentown, West Virginia, with an average temperature ranging between max 84.4°F (29.1°C) and min 61.2°F (16.2°C). August experiences an average high-temperature of a still warm 84.4°F (29.1°C), barely different from July's 85.5°F (29.7°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Allentown, West Virginia, with an average temperature fluctuating between 77.9°F (25.5°C) and 56.7°F (13.7°C). September is characterized by a mild reduction in the average high-temperature, from a moderately hot 84.4°F (29.1°C) in August to a still warm 77.9°F (25.5°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Allentown, West Virginia, with an average temperature ranging between min 46.6°F (8.1°C) and max 65.1°F (18.4°C). October's onset corresponds with a shift in the average high-temperature, moving from a moderately hot 77.9°F (25.5°C) in September to a comfortable 65.1°F (18.4°C). Weather in October »

Weather in November

November, the last month of the autumn in Allentown, is also a fresh month, with an average temperature varying between 52.3°F (11.3°C) and 36.5°F (2.5°C). With the onset of November, Allentown experiences a modest temperature adjustment, with the average high-temperature receding from a refreshing 65.1°F (18.4°C) in October to a fresh 52.3°F (11.3°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Allentown, West Virginia, with temperature in the range of an average low of 31.6°F (-0.2°C) and an average high of 43.2°F (6.2°C). Allentown's December weather shows a moderate shift in high-temperatures, falling from November's cool 52.3°F (11.3°C) to a chilly 43.2°F (6.2°C). Weather in December »
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Allentown?

Allentown's January weather reaches an average high of 37.8°F (3.2°C) and an average low of 24.3°F (-4.3°C), making it the coldest month.

What are the most humid months in Allentown?

The months with the highest humidity in Allentown, West Virginia, are January and February, with an average relative humidity of 82%.

How many days does it rain in Allentown?

In Allentown, West Virginia, during the entire year, the rain falls for 186.1 days and collects up to 36.3" (922mm) of precipitation.

When does it snow in Allentown?

Months with snowfall in Allentown, West Virginia, are January through May, October through December.

When does it snow the most in Allentown?

The month with the most snowfall is January, when snow falls for 14 days and typically aggregates up to 5.39" (137mm) of snow.

How much does it snow in Allentown?

In Allentown, during the entire year, snow falls for 46.8 days and aggregates up to 20.04" (509mm) of snow.

What is the month with the least sunshine in Allentown?

With an average of 3.6h of sunshine, January has the least sunshine of the year in Allentown.

What are the months with the lowest UV index in Allentown?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Allentown.

When is Daylight Saving Time (DST) in Allentown?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Allentown, West Virginia, 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 wettest month in Allentown?

May is the month with the most rainfall in Allentown, West Virginia. Rain falls for 21.3 days and accumulates 4.37" (111mm) of precipitation.

What is the least humid month in Allentown?

The months with the lowest humidity are June and August, with an average relative humidity of 76%.

When it does not snow in Allentown?

In Allentown, snow does not fall in June through September.

When are the longest days in Allentown?

The month with the longest days in Allentown, West Virginia, is June, with an average of 14h and 48min of daylight.

What is the month with the highest UV index in Allentown?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Allentown, West Virginia.

What is the hottest time of year in Allentown?

July is the month that records the highest temperatures, with averages ranging from a high of 85.5°F (29.7°C) to a low of 63.5°F (17.5°C).

What month has the most sunshine in Allentown?

The month with the most sunshine in Allentown is August, with an average of 10.3h of sunshine.

What is the driest month in Allentown?

September is the month with the least rainfall in Allentown, West Virginia. Rain falls for 14.2 days and accumulates 2.05" (52mm) of precipitation.

What is the month with the shortest days in Allentown?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

Average temperature
Allentown, WV

Average temperature - Allentown, WV

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (37.8°F).

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure
Allentown, WV

Average pressure - Allentown, WV

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed
Allentown, WV

Average wind speed - Allentown, WV

The windiest month (with the highest average wind speed) is February (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

Average humidity
Allentown, WV

Average humidity - Allentown, WV

The months with the highest relative humidity are January and February (82%).
The months with the lowest relative humidity are June and August (76%).

Average rainfall
Allentown, WV

Average rainfall - Allentown, WV

The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is September (2.05").

Average rainfall days
Allentown, WV

Average rainfall days - Allentown, WV

The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is November (11.5 days).

Average snowfall
Allentown, WV

Average snowfall - Allentown, WV

The month with the highest snowfall is January (5.39").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Allentown, WV

Average snowfall days - Allentown, WV

The month with the highest number of snowfall days is January (14 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Allentown, WV

Average daylight / Average sunshine - Allentown, WV

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days
Allentown, WV

Average sunshine days - Allentown, WV

The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is May (7.9 days).

Average UV index
Allentown, WV

Average UV index - Allentown, WV

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 and December (UV index 2).

Allentown, West Virginia, USA

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