Climate and monthly weather forecast
State Line, PA

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Weather in January

January, like December, in State Line, Pennsylvania, is an icy winter month, with an average temperature fluctuating between 22.8°F (-5.1°C) and 36.1°F (2.3°C). January, noted for its average high-temperature of 36.1°F (2.3°C) and an average low-temperature of 22.8°F (-5.1°C), is considered the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in State Line, Pennsylvania, with temperature in the range of an average low of 25.2°F (-3.8°C) and an average high of 40.3°F (4.6°C). February's average high-temperature is a still icy 40.3°F (4.6°C), maintaining a close comparison with January's 36.1°F (2.3°C). Weather in February »

Weather in March

March, the first month of the spring in State Line, is a frosty month, with temperature in the range of an average high of 49.3°F (9.6°C) and an average low of 32.5°F (0.3°C). March's onset brings a rise in the average high-temperature, moving from an icy 40.3°F (4.6°C) in February to a chilly 49.3°F (9.6°C). Weather in March »

Weather in April

April is a comfortable spring month in State Line, Pennsylvania, with an average temperature varying between 61.5°F (16.4°C) and 41.9°F (5.5°C). The rise of average high-temperatures is seen in April, with an increase from a frosty 49.3°F (9.6°C) in March to a comfortable 61.5°F (16.4°C). Weather in April »

Weather in May

May, the last month of the spring in State Line, is a pleasant month, with an average temperature varying between 72°F (22.2°C) and 52°F (11.1°C). May's onset is marked by a temperature increase, moving from a refreshing 61.5°F (16.4°C) in April to an agreeable 72°F (22.2°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in State Line, Pennsylvania, with temperature in the range of an average low of 58.6°F (14.8°C) and an average high of 79.5°F (26.4°C). June's arrival coincides with a subtle temperature rise, moving from May's pleasant 72°F (22.2°C) to a warm 79.5°F (26.4°C). Weather in June »

Weather in July

July, like June, in State Line, Pennsylvania, is a moderately hot summer month, with an average temperature varying between 63.7°F (17.6°C) and 84.6°F (29.2°C). July, known for its average high temperature of 84.6°F (29.2°C) and an average low temperature of 63.7°F (17.6°C), is the warmest month. July's heat index is estimated at a hot 93.2°F (34°C). Weather in July »

Weather in August

August, the last month of the summer in State Line, is also a moderately hot month, with an average temperature varying between 61.5°F (16.4°C) and 82.2°F (27.9°C). August reports an average high-temperature of a still moderately hot 82.2°F (27.9°C), slightly varied from July's 84.6°F (29.2°C). Weather in August »

Weather in September

September, the first month of the autumn in State Line, is still a warm month, with an average temperature varying between 75.6°F (24.2°C) and 55.8°F (13.2°C). State Line in September undergoes a slight reduction in the average high-temperature, shifting from August's 82.2°F (27.9°C) to a still moderately hot 75.6°F (24.2°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in State Line, Pennsylvania, with an average temperature fluctuating between 63.5°F (17.5°C) and 46.2°F (7.9°C). Arrival of October comes with a reduction in the average high-temperature, falling from a moderately hot 75.6°F (24.2°C) in September to a refreshing 63.5°F (17.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in State Line, Pennsylvania, with an average temperature varying between 50.7°F (10.4°C) and 35.2°F (1.8°C). Welcoming November, State Line observes a shift in the average high-temperature, falling from October's enjoyable 63.5°F (17.5°C) to a cool 50.7°F (10.4°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in State Line, Pennsylvania, with an average temperature varying between 29.3°F (-1.5°C) and 41.5°F (5.3°C). A decrease in the average high-temperature is observed during December, shifting from a cool 50.7°F (10.4°C) in November to a wintry 41.5°F (5.3°C). Weather in December »
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

January, with its high-temperature average of 36.1°F (2.3°C) and a low-temperature average of 22.8°F (-5.1°C), is the coldest month.

How much does it rain?

In State Line, during the entire year, the rain falls for 164.7 days and collects up to 29.17" (741mm) of precipitation.

When does it snow?

Months with snowfall are January through April, October through December.

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 9 days and typically aggregates up to 4.21" (107mm) of snow.

How much does it snow?

Throughout the year, in State Line, there are 28.6 snowfall days, and 14.65" (372mm) of snow is accumulated.

What is the month with the lowest UV index in State Line?

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

What is the driest month?

February is the month with the least rainfall. Rain falls for 10.4 days and accumulates 1.97" (50mm) of precipitation.

What is the month with the least sunshine?

The month with the least sunshine is February, with an average of 4.7h 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.

What are the least humid months?

April and July, with an average relative humidity of 75%, are the least humid months.

What is the most humid month?

May and October, with an average relative humidity of 79%, are most humid months in State Line.

What is the wettest month?

May is the month with the most rainfall. Rain falls for 18.3 days and accumulates 3.11" (79mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

What are the months with the highest UV index in State Line?

May through July, with an average maximum UV index of 6, are months with the highest UV index.

When are the longest days?

June has the longest days of the year, with an average of 14h and 54min of daylight.

What is the hottest time of year?

State Line witnesses the warmest weather in July, with temperatures averaging a high of 84.6°F (29.2°C) and a low of 63.7°F (17.6°C).

What month has the most sunshine?

With an average of 10.6h of sunshine, July has the most sunshine of the year.

What is the month with the shortest days?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

Average temperature
State Line, PA

Average temperature - State Line, PA

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.1°F).

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

Average pressure
State Line, PA

Average pressure - State Line, PA

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed
State Line, PA

Average wind speed - State Line, PA

The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity
State Line, PA

Average humidity - State Line, PA

The months with the highest relative humidity are May and October (79%).
The months with the lowest relative humidity are April and July (75%).

Average rainfall
State Line, PA

Average rainfall - State Line, PA

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (1.97").

Average rainfall days
State Line, PA

Average rainfall days - State Line, PA

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.8 days).

Average snowfall
State Line, PA

Average snowfall - State Line, PA

The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
State Line, PA

Average snowfall days - State Line, PA

The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
State Line, PA

Average daylight / Average sunshine - State Line, PA

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days
State Line, PA

Average sunshine days - State Line, PA

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.7 days).

Average UV index
State Line, PA

Average UV index - State Line, PA

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

Average cloud cover
State Line, PA

Average cloud cover - State Line, PA

The months with the most cloud cover are January, February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility
State Line, PA

Average visibility - State Line, PA

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

State Line, Pennsylvania, USA

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