Climate and monthly weather forecast
Big Run, PA

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Weather in January

January, the same as December, in Big Run, Pennsylvania, is a freezing cold winter month, with an average temperature varying between 30.4°F (-0.9°C) and 18.3°F (-7.6°C). Big Run's coldest weather arrives in January, when temperatures average a high of 30.4°F (-0.9°C) and a low of 18.3°F (-7.6°C). Weather in January »

Weather in February

The last month of the winter, February, is a wintry month in Big Run, Pennsylvania, with temperature in the range of an average low of 20.3°F (-6.5°C) and an average high of 34.7°F (1.5°C). Big Run greets February with an average high-temperature of a wintry 34.7°F (1.5°C), marking a slight deviation from the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Big Run, is a chilly month, with an average temperature varying between 44.2°F (6.8°C) and 28.2°F (-2.1°C). March brings an increase in the average high-temperature, progressing from an icy 34.7°F (1.5°C) in February to a frosty 44.2°F (6.8°C). Weather in March »

Weather in April

April in Big Run, Pennsylvania, is a moderate spring month, with temperature in the range of an average low of 37.9°F (3.3°C) and an average high of 56.8°F (13.8°C). The transition from March to April brings a temperature rise, with average high-temperatures increasing from a chilly 44.2°F (6.8°C) to a mild 56.8°F (13.8°C). Weather in April »

Weather in May

May, the last month of the spring in Big Run, is an agreeable month, with an average temperature fluctuating between 48.4°F (9.1°C) and 68.9°F (20.5°C). With the onset of May, Big Run experiences a temperature shift, with the average high-temperature moving from a refreshing 56.8°F (13.8°C) in April to an agreeable 68.9°F (20.5°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Big Run, Pennsylvania, with an average temperature varying between 54.1°F (12.3°C) and 76.1°F (24.5°C). As June arrives, a slight rise in the average high-temperature is observed, moving from an agreeable 68.9°F (20.5°C) in May to a moderately hot 76.1°F (24.5°C). Weather in June »

Weather in July

July, like June, in Big Run, Pennsylvania, is another warm summer month, with an average temperature varying between 58.8°F (14.9°C) and 81°F (27.2°C). July, on average, is the warmest month, registering a high temperature of 81°F (27.2°C) and a low of 58.8°F (14.9°C). The heat index for July is estimated at a hot 86°F (30°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Big Run, Pennsylvania, with an average temperature ranging between min 57°F (13.9°C) and max 79.2°F (26.2°C). The commencement of August introduces an average high-temperature of a still warm 79.2°F (26.2°C), closely mirroring the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Big Run, is still a pleasant month, with an average temperature fluctuating between 72.3°F (22.4°C) and 52.5°F (11.4°C). A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a moderately hot 79.2°F (26.2°C) to a pleasant 72.3°F (22.4°C). Weather in September »

Weather in October

October, the same as September, in Big Run, Pennsylvania, is another refreshing autumn month, with an average temperature fluctuating between 43.5°F (6.4°C) and 59.4°F (15.2°C). With October's arrival, Big Run's weather changes as the average high-temperature falls from a pleasant 72.3°F (22.4°C) in September to a moderate 59.4°F (15.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Big Run, Pennsylvania, with an average temperature fluctuating between 32°F (0°C) and 46.2°F (7.9°C). With the onset of November, Big Run experiences a modest temperature adjustment, with the average high-temperature receding from a moderate 59.4°F (15.2°C) in October to a frosty 46.2°F (7.9°C). Weather in November »

Weather in December

December, the first month of the winter in Big Run, is still a cold month, with an average temperature ranging between min 25.7°F (-3.5°C) and max 36.7°F (2.6°C). In December, the average high-temperature decreases from a chilly 46.2°F (7.9°C) in November to an icy 36.7°F (2.6°C). Weather in December »
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

January is the coldest month, with an average high-temperature of 30.4°F (-0.9°C) and an average low-temperature of 18.3°F (-7.6°C).

How much does it rain?

Throughout the year, there are 151.9 rainfall days, and 22.13" (562mm) of precipitation is accumulated.

When does it snow?

January through May, October through December are months with snowfall.

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 18.6 days and typically aggregates up to 5.63" (143mm) of snow.

How many days does it snow?

Throughout the year, there are 71 snowfall days, and 22.32" (567mm) of snow is accumulated.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 2.5h of sunshine.

What is the most humid month?

With an average relative humidity of 88%, February is the most humid month.

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 is the wettest month?

April is the month with the most rainfall in Big Run. Rain falls for 16.3 days and accumulates 2.48" (63mm) of precipitation.

What is the month with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

What is the least humid month?

The months with the lowest humidity are June through August, with an average relative humidity of 78%.

When it does not snow?

In Big Run, snow does not fall in June through September.

When are the longest days?

The month with the longest days is June, with an average of 15h and 6min of daylight.

What time of the year is the hottest?

July proves to be the warmest month, recording an average peak temperature of 81°F (27.2°C) and a minimum temperature of 58.8°F (14.9°C).

What are the months with the most sunshine?

The months with the most sunshine are July and August, with an average of 9.6h of sunshine.

What is the driest month?

November is the month with the least rainfall. Rain falls for 9.1 days and accumulates 1.26" (32mm) 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.

When is the lowest UV index?

With an average maximum UV index of 1, December is the month with the lowest UV index.

Average temperature
Big Run, PA

Average temperature - Big Run, PA

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.4°F).

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure
Big Run, PA

Average pressure - Big Run, PA

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed
Big Run, PA

Average wind speed - Big Run, PA

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity
Big Run, PA

Average humidity - Big Run, PA

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June, July and August (78%).

Average rainfall
Big Run, PA

Average rainfall - Big Run, PA

The wettest month (with the highest rainfall) is April (2.48").
The driest month (with the least rainfall) is November (1.26").

Average rainfall days
Big Run, PA

Average rainfall days - Big Run, PA

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.8 days).

Average snowfall
Big Run, PA

Average snowfall - Big Run, PA

The month with the highest snowfall is January (5.63").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Big Run, PA

Average snowfall days - Big Run, PA

The month with the highest number of snowfall days is January (18.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Big Run, PA

Average daylight / Average sunshine - Big Run, PA

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).

The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

Average sunshine days
Big Run, PA

Average sunshine days - Big Run, PA

The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (7.8 days).

Big Run, Pennsylvania, USA

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