Climate and monthly weather forecast
Clay Hill, PA

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Weather in January

January, the same as December, is an icy winter month in Clay Hill, Pennsylvania, with an average temperature ranging between min 22.5°F (-5.3°C) and max 35.4°F (1.9°C). January stands out as Clay Hill's coldest month, with temperatures ranging between an average high of 35.4°F (1.9°C) and a low of 22.5°F (-5.3°C). Weather in January »

Weather in February

February, the last month of the winter in Clay Hill, is also an icy month, with temperature in the range of an average low of 24.6°F (-4.1°C) and an average high of 39.9°F (4.4°C). Clay Hill's February average high-temperature settles at a still wintry 39.9°F (4.4°C), showing a near match with the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Clay Hill, Pennsylvania, with an average temperature fluctuating between 32°F (0°C) and 48.7°F (9.3°C). A soft shift in the average high-temperature is noticeable in March, transitioning from a cold 39.9°F (4.4°C) in February to a chilly 48.7°F (9.3°C). Weather in March »

Weather in April

April is a refreshing spring month in Clay Hill, Pennsylvania, with temperature in the range of an average high of 61.3°F (16.3°C) and an average low of 41.7°F (5.4°C). The beginning of April signals a rise in the average high-temperature, moving from a chilly 48.7°F (9.3°C) in March to a comfortable 61.3°F (16.3°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Clay Hill, Pennsylvania, with an average temperature fluctuating between 71.2°F (21.8°C) and 51.6°F (10.9°C). The arrival of May brings a temperature shift, with the average high-temperature escalating from a refreshing 61.3°F (16.3°C) in April to an agreeable 71.2°F (21.8°C). Weather in May »

Weather in June

June, the first month of the summer in Clay Hill, is a moderately hot month, with an average temperature ranging between max 79.5°F (26.4°C) and min 58.6°F (14.8°C). In Clay Hill, the average high-temperature in June slightly increases from an agreeable 71.2°F (21.8°C) in May to a warm 79.5°F (26.4°C). Weather in June »

Weather in July

July, like June, in Clay Hill, Pennsylvania, is a moderately hot summer month, with an average temperature fluctuating between 84.4°F (29.1°C) and 62.6°F (17°C). July stands out as Clay Hill's warmest month, with an average high-temperature of 84.4°F (29.1°C) and a low-temperature of 62.6°F (17°C). The average heat index in July is estimated at a tropical 93.2°F (34°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Clay Hill, Pennsylvania, with an average temperature fluctuating between 61.5°F (16.4°C) and 81.9°F (27.7°C). August's arrival registers an average high-temperature of a still warm 81.9°F (27.7°C), closely aligning with the temperature of the previous month. Weather in August »

Weather in September

September, the first month of the autumn in Clay Hill, is still a warm month, with an average temperature varying between 55.6°F (13.1°C) and 74.8°F (23.8°C). The beginning of September brings a minor change in the average high-temperature, shifting from 81.9°F (27.7°C) in August to a still warm 74.8°F (23.8°C). Weather in September »

Weather in October

October, like September, in Clay Hill, Pennsylvania, is another comfortable autumn month, with an average temperature ranging between max 63.3°F (17.4°C) and min 46°F (7.8°C). Clay Hill's October weather features a mild decline in high-temperatures, reducing from a warm 74.8°F (23.8°C) in September to a refreshing 63.3°F (17.4°C). Weather in October »

Weather in November

November, the last month of the autumn in Clay Hill, is also a fresh month, with temperature in the range of an average high of 50.5°F (10.3°C) and an average low of 34.7°F (1.5°C). The arrival of November corresponds with a shift in temperature, down from a refreshing 63.3°F (17.4°C) in October to a cool 50.5°F (10.3°C). Weather in November »

Weather in December

December, the first month of the winter in Clay Hill, is also a wintry month, with temperature in the range of an average low of 28.9°F (-1.7°C) and an average high of 41.2°F (5.1°C). With the onset of December, Clay Hill experiences a modest temperature adjustment, with the average high-temperature receding from a fresh 50.5°F (10.3°C) in November to an icy 41.2°F (5.1°C). Weather in December »
Updated: Jun 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

Temperature records mark January as the coldest month, with highs averaging 35.4°F (1.9°C) and lows at 22.5°F (-5.3°C).

What is the driest month?

The month with the least rainfall is January, when the rain falls for 9.2 days and typically collects 1.85" (47mm) of precipitation.

How much does it rain?

Throughout the year, there are 161.8 rainfall days, and 28.07" (713mm) of precipitation is accumulated.

When does it snow?

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

When does it snow the most?

The month with the most snowfall is January, when snow falls for 8.1 days and typically aggregates up to 4.53" (115mm) of snow.

How much does it snow?

Throughout the year, there are 26.6 snowfall days, and 14.69" (373mm) of snow is accumulated.

When is the lowest UV index in Clay Hill?

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

What is the most humid month?

February, May, October and December, with an average relative humidity of 79%, are most humid months.

What is the month with the least sunshine?

With an average of 4.6h of sunshine, February has the least sunshine of the year.

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 least humid month?

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

What is the wettest month in Clay Hill?

The month with the most rainfall is May, when the rain falls for 18.8 days and typically aggregates up to 3.15" (80mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

What is the month with the highest UV index?

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

When are the longest days?

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

What part of the year is the hottest?

July stands out as Clay Hill's warmest month, with temperatures ranging between an average high of 84.4°F (29.1°C) and a low of 62.6°F (17°C).

What month has the most sunshine in Clay Hill?

The month with the most sunshine is July, with an average of 10.5h of sunshine.

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
Clay Hill, PA

Average temperature - Clay Hill, PA

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.4°F).

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure
Clay Hill, PA

Average pressure - Clay Hill, 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
Clay Hill, PA

Average wind speed - Clay Hill, 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
Clay Hill, PA

Average humidity - Clay Hill, PA

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

Average rainfall
Clay Hill, PA

Average rainfall - Clay Hill, PA

The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (1.85").

Average rainfall days
Clay Hill, PA

Average rainfall days - Clay Hill, PA

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is November (9 days).

Average snowfall
Clay Hill, PA

Average snowfall - Clay Hill, PA

The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Clay Hill, PA

Average snowfall days - Clay Hill, PA

The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Clay Hill, PA

Average daylight / Average sunshine - Clay Hill, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days
Clay Hill, PA

Average sunshine days - Clay Hill, PA

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).

Average UV index
Clay Hill, PA

Average UV index - Clay Hill, 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
Clay Hill, PA

Average cloud cover - Clay Hill, PA

The months with the most cloud cover are January, February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility
Clay Hill, PA

Average visibility - Clay Hill, PA

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

Clay Hill, Pennsylvania, USA

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