Climate and monthly weather forecast
Arlington Knolls, PA

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Weather in January

January, like December, in Arlington Knolls, Pennsylvania, is a wintry winter month, with an average temperature fluctuating between 33.8°F (1°C) and 21.6°F (-5.8°C). January is the month that records the lowest temperatures, with averages ranging from a high of 33.8°F (1°C) to a low of 21.6°F (-5.8°C). Weather in January »

Weather in February

February, the last month of the winter in Arlington Knolls, is also an icy month, with an average temperature fluctuating between 23.4°F (-4.8°C) and 37.4°F (3°C). Arlington Knolls ushers in February with an average high-temperature of a still icy 37.4°F (3°C), showing a close resemblance to the previous month. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Arlington Knolls, Pennsylvania, with temperature in the range of an average high of 46°F (7.8°C) and an average low of 30°F (-1.1°C). In Arlington Knolls, the average high-temperature in March slightly increases from a cold 37.4°F (3°C) in February to a frosty 46°F (7.8°C). Weather in March »

Weather in April

April in Arlington Knolls, Pennsylvania, is a moderate spring month, with an average temperature varying between 40.5°F (4.7°C) and 58.5°F (14.7°C). April sees a rise in the average high-temperature, climbing from a frosty 46°F (7.8°C) in March to a mild 58.5°F (14.7°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Arlington Knolls, Pennsylvania, with an average temperature ranging between max 69.4°F (20.8°C) and min 50.2°F (10.1°C). With the onset of May, Arlington Knolls's weather sees a temperature rise, transitioning from a mild 58.5°F (14.7°C) in April to an agreeable 69.4°F (20.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Arlington Knolls, Pennsylvania, with an average temperature ranging between min 57.7°F (14.3°C) and max 77.4°F (25.2°C). With the transition into June, Arlington Knolls experiences a subtle uplift in average high-temperatures, adjusting from an agreeable 69.4°F (20.8°C) in May to a warm 77.4°F (25.2°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Arlington Knolls, Pennsylvania, with an average temperature ranging between max 83.3°F (28.5°C) and min 63.3°F (17.4°C). July, recognised by an average high temperature of 83.3°F (28.5°C) and a low of 63.3°F (17.4°C), is Arlington Knolls's warmest month. July's heat index is calculated to be a tropical 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in Arlington Knolls, is also a moderately hot month, with temperature in the range of an average low of 61.5°F (16.4°C) and an average high of 81°F (27.2°C). With August's arrival, Arlington Knolls's weather records an average high-temperature of a still warm 81°F (27.2°C), marking little difference from July's 83.3°F (28.5°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Arlington Knolls, Pennsylvania, with an average temperature ranging between max 74.1°F (23.4°C) and min 55°F (12.8°C). As September arrives, Arlington Knolls's weather displays a minor decrease in high-temperatures, transitioning from August's 81°F (27.2°C) to a still moderately hot 74.1°F (23.4°C). Weather in September »

Weather in October

October, like September, in Arlington Knolls, Pennsylvania, is another comfortable autumn month, with temperature in the range of an average low of 45.9°F (7.7°C) and an average high of 61.9°F (16.6°C). Welcoming October, Arlington Knolls observes a shift in the average high-temperature, falling from September's moderately hot 74.1°F (23.4°C) to an enjoyable 61.9°F (16.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Arlington Knolls, Pennsylvania, with temperature in the range of an average high of 49.1°F (9.5°C) and an average low of 34.9°F (1.6°C). Arlington Knolls's weather changes with the onset of November, slightly falling from an enjoyable 61.9°F (16.6°C) in October to a frosty 49.1°F (9.5°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Arlington Knolls, Pennsylvania, with temperature in the range of an average low of 28.9°F (-1.7°C) and an average high of 40.1°F (4.5°C). December weather is marked by a drop in the average high-temperature, falling from a chilly 49.1°F (9.5°C) in November to a wintry 40.1°F (4.5°C). Weather in December »
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

Arlington Knolls's coldest weather arrives in January, when temperatures average a high of 33.8°F (1°C) and a low of 21.6°F (-5.8°C).

How many days does it rain?

Throughout the year, there are 162.5 rainfall days, and 31.69" (805mm) of precipitation is accumulated.

When does it snow?

Months with snowfall in Arlington Knolls are January through May, October through December.

How much does it snow?

In Arlington Knolls, during the entire year, snow falls for 32.3 days and aggregates up to 17.24" (438mm) of snow.

What is the month with the lowest UV index?

The months with the lowest UV index in Arlington Knolls, Pennsylvania, are January through March, November and December, with an average maximum UV index of 2.

What is the most humid month?

The most humid month is February, with an average relative humidity of 81%.

What is the month with the least sunshine?

With an average of 4.5h of sunshine, February has the least sunshine of the year.

What is the snowiest month?

March is the month with the most snowfall. Snow falls for 6.3 days and accumulates 4.88" (124mm) of snow.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Arlington Knolls, 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 Arlington Knolls?

April and July, with an average relative humidity of 76%, are the least humid months.

When it does not snow?

June through September are months without snowfall.

When are the longest days?

With an average of 15h and 0min of daylight, June has the longest days of the year.

What is the month with the highest UV index?

The months with the highest UV index are June and July, with an average maximum UV index of 6.

What is the warmest month?

July, having an average high-temperature of 83.3°F (28.5°C) and an average low-temperature of 63.3°F (17.4°C), is the warmest month.

What is the wettest month?

The month with the most rainfall is July, when the rain falls for 16.3 days and typically aggregates up to 3.19" (81mm) of precipitation.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.4h of sunshine.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.6 days and typically collects 1.93" (49mm) of precipitation.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Arlington Knolls.

Average temperature
Arlington Knolls, PA

Average temperature - Arlington Knolls, PA

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.8°F).

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure
Arlington Knolls, PA

Average pressure - Arlington Knolls, PA

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed
Arlington Knolls, PA

Average wind speed - Arlington Knolls, PA

The windiest months (with the highest average wind speed) are January and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity
Arlington Knolls, PA

Average humidity - Arlington Knolls, PA

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (76%).

Average rainfall
Arlington Knolls, PA

Average rainfall - Arlington Knolls, PA

The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days
Arlington Knolls, PA

Average rainfall days - Arlington Knolls, PA

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (9.9 days).

Average snowfall
Arlington Knolls, PA

Average snowfall - Arlington Knolls, PA

The month with the highest snowfall is March (4.88").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Arlington Knolls, PA

Average snowfall days - Arlington Knolls, PA

The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Arlington Knolls, PA

Average daylight / Average sunshine - Arlington Knolls, PA

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 18min).

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days
Arlington Knolls, PA

Average sunshine days - Arlington Knolls, PA

The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is February (11.7 days).

Average UV index
Arlington Knolls, PA

Average UV index - Arlington Knolls, PA

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average visibility
Arlington Knolls, PA

Average visibility - Arlington Knolls, PA

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).

Arlington Knolls, Pennsylvania, USA

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