Climate and monthly weather forecast
Rockhill, PA

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Weather in January

January, like December, in Rockhill, Pennsylvania, is another cold winter month, with an average temperature fluctuating between 20.1°F (-6.6°C) and 32.9°F (0.5°C). January is the coldest month of the year, registering average temperatures as high as 32.9°F (0.5°C) and as low as 20.1°F (-6.6°C). Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Rockhill, Pennsylvania, with an average temperature varying between 37.2°F (2.9°C) and 22.8°F (-5.1°C). The introduction of February notes a subtle temperature variation to a still icy 37.2°F (2.9°C) from January's 32.9°F (0.5°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Rockhill, Pennsylvania, with temperature in the range of an average low of 29.8°F (-1.2°C) and an average high of 46.9°F (8.3°C). Rockhill in March sees a temperature change, with average high-temperatures moving from an icy 37.2°F (2.9°C) in February to a frosty 46.9°F (8.3°C). Weather in March »

Weather in April

April is a refreshing spring month in Rockhill, Pennsylvania, with temperature in the range of an average low of 39.7°F (4.3°C) and an average high of 59.4°F (15.2°C). As April arrives, a rise in the average high-temperature is observed, moving from a frosty 46.9°F (8.3°C) in March to a mild 59.4°F (15.2°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Rockhill, Pennsylvania, with temperature in the range of an average high of 70.3°F (21.3°C) and an average low of 49.5°F (9.7°C). With the onset of May, the average high-temperature slightly shifts from April's moderate 59.4°F (15.2°C) to a pleasant 70.3°F (21.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Rockhill, Pennsylvania, with an average temperature fluctuating between 78.3°F (25.7°C) and 55.9°F (13.3°C). June's arrival signals a subtle increase in average high-temperatures, moving from May's pleasant 70.3°F (21.3°C) to a moderately hot 78.3°F (25.7°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Rockhill, Pennsylvania, with an average temperature fluctuating between 83.7°F (28.7°C) and 60.4°F (15.8°C). In Rockhill, the highest average temperatures are observed in July, with a high of 83.7°F (28.7°C) and a low of 60.4°F (15.8°C). July's heat index is evaluated at a tropical 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in Rockhill, is also a moderately hot month, with an average temperature ranging between max 81.3°F (27.4°C) and min 58.5°F (14.7°C). The transition into August is marked with an average high-temperature of a still moderately hot 81.3°F (27.4°C), showing an insignificant shift from July's 83.7°F (28.7°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Rockhill, Pennsylvania, with an average temperature varying between 53.2°F (11.8°C) and 74.3°F (23.5°C). Rockhill's weather subtly changes with the onset of September, barely falling from a warm 81.3°F (27.4°C) in August to a still moderately hot 74.3°F (23.5°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Rockhill, Pennsylvania, with temperature in the range of an average high of 61.5°F (16.4°C) and an average low of 43.9°F (6.6°C). Rockhill's transition into October involves a shift in temperature, receding from a moderately hot 74.3°F (23.5°C) in September to a refreshing 61.5°F (16.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Rockhill, Pennsylvania, with temperature in the range of an average low of 32.9°F (0.5°C) and an average high of 48.4°F (9.1°C). A change in temperatures is noted as October gives way to November, with average highs reducing from a comfortable 61.5°F (16.4°C) to a frosty 48.4°F (9.1°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Rockhill, Pennsylvania, with an average temperature varying between 27.5°F (-2.5°C) and 38.8°F (3.8°C). December brings a minor decrease, with the average high-temperature reducing from a frosty 48.4°F (9.1°C) in November to an icy 38.8°F (3.8°C). Weather in December »
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Frequently asked questions

What is the coldest time of year in Rockhill?

In Rockhill, January is the month with the lowest recorded average temperatures, measuring a high of 32.9°F (0.5°C) and a low of 20.1°F (-6.6°C).

How much does it rain in Rockhill?

In Rockhill, during the entire year, the rain falls for 164.3 days and collects up to 28.19" (716mm) of precipitation.

When does it snow in Rockhill?

January through April, October through December are months with snowfall in Rockhill.

What is the snowiest month in Rockhill?

The month with the most snowfall in Rockhill is January, when snow falls for 12.2 days and typically aggregates up to 5.24" (133mm) of snow.

How much does it snow in Rockhill?

In Rockhill, Pennsylvania, during the entire year, snow falls for 40.6 days and aggregates up to 17.91" (455mm) of snow.

What is the month with the least sunshine in Rockhill?

January has the least sunshine of the year, with an average of 4.2h of sunshine.

What are the months with the lowest UV index in Rockhill?

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the most humid month in Rockhill?

The most humid month in Rockhill is February, with an average relative humidity of 82%.

When is Daylight Saving Time (DST) in Rockhill?

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 in Rockhill?

May is the month with the most rainfall. Rain falls for 17.7 days and accumulates 3.07" (78mm) of precipitation.

When it does not snow in Rockhill?

May through September are months without snowfall.

What is the month with the highest UV index in Rockhill?

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

When are the longest days in Rockhill?

The month with the longest days is June, with an average of 15h and 0min of daylight.

What time of the year is the hottest in Rockhill?

July, characterized by an average high temperature of 83.7°F (28.7°C) and a low temperature of 60.4°F (15.8°C), is generally the warmest month in Rockhill.

What is the least humid month in Rockhill?

With an average relative humidity of 75%, July is the least humid month in Rockhill.

What month has the most sunshine in Rockhill?

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

What is the driest month in Rockhill?

The month with the least rainfall in Rockhill is September, when the rain falls for 12.8 days and typically collects 1.85" (47mm) of precipitation.

What is the month with the shortest days in Rockhill?

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

Average temperature
Rockhill, PA

Average temperature - Rockhill, PA

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.9°F).

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

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Average pressure
Rockhill, PA

Average pressure - Rockhill, 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).

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Average wind speed
Rockhill, PA

Average wind speed - Rockhill, PA

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average rainfall
Rockhill, PA

Average rainfall - Rockhill, PA

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days
Rockhill, PA

Average rainfall days - Rockhill, PA

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (9.5 days).

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Average snowfall
Rockhill, PA

Average snowfall - Rockhill, PA

The month with the highest snowfall is January (5.24").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Rockhill, PA

Average snowfall days - Rockhill, PA

The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Rockhill, PA

Average daylight / Average sunshine - Rockhill, 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 24min).

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days
Rockhill, PA

Average sunshine days - Rockhill, PA

The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is May (10.7 days).

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Average UV index
Rockhill, PA

Average UV index - Rockhill, PA

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

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Average visibility
Rockhill, PA

Average visibility - Rockhill, 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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Rockhill, Pennsylvania, USA

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