Climate and monthly weather forecast
Slate Valley, PA

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Weather in January

January, the same as December, is another cold winter month in Slate Valley, Pennsylvania, with temperature in the range of an average high of 32.5°F (0.3°C) and an average low of 20.3°F (-6.5°C). January is the month when Slate Valley, Pennsylvania, sees the lowest average temperatures, with a high of 32.5°F (0.3°C) and a low of 20.3°F (-6.5°C). Weather in January »

Weather in February

February, the last month of the winter in Slate Valley, is another cold month, with temperature in the range of an average high of 36.5°F (2.5°C) and an average low of 22.3°F (-5.4°C). The average high-temperature is a still icy 36.5°F (2.5°C) in February, hardly different from the 32.5°F (0.3°C) recorded in January. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Slate Valley, Pennsylvania, with temperature in the range of an average low of 29.1°F (-1.6°C) and an average high of 44.2°F (6.8°C). With the onset of March, Slate Valley's average high-temperature sees a modest rise, moving from February's wintry 36.5°F (2.5°C) to a chilly 44.2°F (6.8°C). Weather in March »

Weather in April

April in Slate Valley, Pennsylvania, is a moderate spring month, with temperature in the range of an average low of 38.8°F (3.8°C) and an average high of 56.8°F (13.8°C). The arrival of April brings an increase in high-temperatures, moving from a frosty 44.2°F (6.8°C) in March to a mild 56.8°F (13.8°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Slate Valley, Pennsylvania, with temperature in the range of an average high of 68.2°F (20.1°C) and an average low of 49.6°F (9.8°C). Slate Valley in May experiences an increase in the average high-temperature, moving from April's refreshing 56.8°F (13.8°C) to an agreeable 68.2°F (20.1°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Slate Valley, Pennsylvania, with an average temperature fluctuating between 56.5°F (13.6°C) and 75.7°F (24.3°C). With the beginning of June, Slate Valley's average high-temperature sees a minor increase, transitioning from a pleasant 68.2°F (20.1°C) in May to a warm 75.7°F (24.3°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Slate Valley, Pennsylvania, with an average temperature varying between 61.9°F (16.6°C) and 81.5°F (27.5°C). July stands out as Slate Valley's warmest month, with temperatures ranging between an average high of 81.5°F (27.5°C) and a low of 61.9°F (16.6°C). July's mean heat index is computed to be a tropical 87.8°F (31°C). Weather in July »

Weather in August

August, the last month of the summer in Slate Valley, is another warm month, with an average temperature ranging between min 60.1°F (15.6°C) and max 79.3°F (26.3°C). Slate Valley, Pennsylvania, starts August with an average high-temperature of a still warm 79.3°F (26.3°C), a minor shift from July's 81.5°F (27.5°C). Weather in August »

Weather in September

September, the first month of the autumn in Slate Valley, is still a pleasant month, with an average temperature ranging between max 72.9°F (22.7°C) and min 53.8°F (12.1°C). The move into September indicates a slight reduction in the average high-temperature, down from August's moderately hot 79.3°F (26.3°C) to an agreeable 72.9°F (22.7°C). Weather in September »

Weather in October

October, the same as September, in Slate Valley, Pennsylvania, is another refreshing autumn month, with an average temperature fluctuating between 60.3°F (15.7°C) and 44.6°F (7°C). October indicates a shift in the average high-temperature, from September's pleasant 72.9°F (22.7°C) to a refreshing 60.3°F (15.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Slate Valley, Pennsylvania, with an average temperature ranging between min 33.8°F (1°C) and max 48.2°F (9°C). November suggests a modest reduction in the average high-temperature, shifting from a moderate 60.3°F (15.7°C) in October to a frosty 48.2°F (9°C). Weather in November »

Weather in December

December, the first month of the winter in Slate Valley, is still a cold month, with an average temperature ranging between max 38.3°F (3.5°C) and min 27.5°F (-2.5°C). In the transition to December, Slate Valley observes a drop in the average high-temperature, moving from a frosty 48.2°F (9°C) in November to an icy 38.3°F (3.5°C). Weather in December »
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Frequently asked questions

What is the coldest time of year in Slate Valley?

In Slate Valley, Pennsylvania, the lowest temperatures are generally noted in January, averaging a high of 32.5°F (0.3°C) and a low of 20.3°F (-6.5°C).

How many days does it rain in Slate Valley?

Throughout the year, there are 155.1 rainfall days, and 29.45" (748mm) of precipitation is accumulated.

When does it snow in Slate Valley?

Months with snowfall in Slate Valley are January through May, October through December.

What is the snowiest month in Slate Valley?

The months with the most snowfall in Slate Valley, Pennsylvania, are January and March, with an average 4.41" (112mm) of accumulated snow.

How much does it snow in Slate Valley?

In Slate Valley, Pennsylvania, during the entire year, snow falls for 34 days and aggregates up to 16.73" (425mm) of snow.

What is the most humid month in Slate Valley?

February is the most humid month in Slate Valley, Pennsylvania, with an average relative humidity of 83%.

What is the month with the least sunshine in Slate Valley?

February has the least sunshine of the year in Slate Valley, Pennsylvania, with an average of 4.3h of sunshine.

When is Daylight Saving Time (DST) in Slate Valley?

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 in Slate Valley?

April and July, with an average relative humidity of 77%, are the least humid months.

When it does not snow in Slate Valley?

June through September are months without snowfall.

When are the longest days in Slate Valley?

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

What is the hottest time of year in Slate Valley?

Slate Valley, Pennsylvania, records the warmest temperatures in July, averaging a high of 81.5°F (27.5°C) and a low of 61.9°F (16.6°C).

What is the wettest month in Slate Valley?

July is the month with the most rainfall in Slate Valley, Pennsylvania. Rain falls for 16.1 days and accumulates 3.03" (77mm) of precipitation.

What month has the most sunshine in Slate Valley?

The month with the most sunshine in Slate Valley is July, with an average of 10.3h of sunshine.

When is the highest UV index in Slate Valley?

The month with the highest UV index in Slate Valley, Pennsylvania, is July, with an average maximum UV index of 6.

What is the driest month in Slate Valley?

The month with the least rainfall in Slate Valley, Pennsylvania, is September, when the rain falls for 11.5 days and typically collects 1.77" (45mm) of precipitation.

What is the month with the shortest days in Slate Valley?

December has the shortest days of the year in Slate Valley, Pennsylvania, with an average of 9h and 18min of daylight.

What is the month with the lowest UV index in Slate Valley?

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

Average temperature
Slate Valley, PA

Average temperature - Slate Valley, PA

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32.5°F).

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

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Average pressure
Slate Valley, PA

Average pressure - Slate Valley, 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).

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Average wind speed
Slate Valley, PA

Average wind speed - Slate Valley, PA

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity
Slate Valley, PA

Average humidity - Slate Valley, PA

The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are April and July (77%).

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Average rainfall
Slate Valley, PA

Average rainfall - Slate Valley, PA

The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days
Slate Valley, PA

Average rainfall days - Slate Valley, PA

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.6 days).

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Average snowfall
Slate Valley, PA

Average snowfall - Slate Valley, PA

The months with the highest snowfall are January and March (4.41").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Slate Valley, PA

Average snowfall days - Slate Valley, PA

The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Slate Valley, PA

Average daylight / Average sunshine - Slate Valley, 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

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Average sunshine days
Slate Valley, PA

Average sunshine days - Slate Valley, PA

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (11.3 days).

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Average visibility
Slate Valley, PA

Average visibility - Slate Valley, PA

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

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Slate Valley, Pennsylvania, USA

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