Climate and monthly weather forecast
Rocky Hill, PA

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Weather in January

January, like December, in Rocky Hill, Pennsylvania, is an icy winter month, with an average temperature fluctuating between 36.1°F (2.3°C) and 24.3°F (-4.3°C). In Rocky Hill, the month of January registers the lowest temperatures, averaging 36.1°F (2.3°C) at the peak and 24.3°F (-4.3°C) at the lowest. Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Rocky Hill, Pennsylvania, with an average temperature varying between 26.4°F (-3.1°C) and 39.7°F (4.3°C). Rocky Hill experiences a subtle adjustment in high-temperatures to a still cold 39.7°F (4.3°C) with the onset of February, maintaining near parity with January's 36.1°F (2.3°C). Weather in February »

Weather in March

March, the first month of the spring in Rocky Hill, is a frosty month, with temperature in the range of an average high of 48.2°F (9°C) and an average low of 33.4°F (0.8°C). March's onset witnesses a minor shift in the average high-temperature, moving from a cold 39.7°F (4.3°C) in February to a chilly 48.2°F (9°C). Weather in March »

Weather in April

April in Rocky Hill, Pennsylvania, is a refreshing spring month, with an average temperature ranging between max 60.6°F (15.9°C) and min 43.5°F (6.4°C). April's onset is marked by a temperature increase, moving from a chilly 48.2°F (9°C) in March to a moderate 60.6°F (15.9°C). Weather in April »

Weather in May

May, the last month of the spring in Rocky Hill, is a pleasant month, with an average temperature fluctuating between 71.1°F (21.7°C) and 53.6°F (12°C). The onset of May marks an increase in the average high-temperature, moving from a refreshing 60.6°F (15.9°C) in April to an agreeable 71.1°F (21.7°C). Weather in May »

Weather in June

June, the first month of the summer in Rocky Hill, is a warm month, with an average temperature varying between 61.5°F (16.4°C) and 79°F (26.1°C). The beginning of June marks a minor shift in the average high-temperature, moving from May's pleasant 71.1°F (21.7°C) to a moderately hot 79°F (26.1°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Rocky Hill, Pennsylvania, with an average temperature fluctuating between 67.5°F (19.7°C) and 84.9°F (29.4°C). With average temperatures fluctuating between a high of 84.9°F (29.4°C) and a low of 67.5°F (19.7°C), July stands out as the warmest month. The heat index in July is computed to be a hot 93.2°F (34°C). Weather in July »

Weather in August

August, the last month of the summer in Rocky Hill, is another warm month, with an average temperature fluctuating between 65.8°F (18.8°C) and 82.4°F (28°C). Rocky Hill records an average high-temperature of a still warm 82.4°F (28°C) in August, maintaining a close correlation with July's 84.9°F (29.4°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Rocky Hill, Pennsylvania, with temperature in the range of an average high of 75.7°F (24.3°C) and an average low of 59.2°F (15.1°C). The shift from August to September coincides with a small decrease in the average high-temperature, down to a still moderately hot 75.7°F (24.3°C) from 82.4°F (28°C). Weather in September »

Weather in October

October, like September, in Rocky Hill, Pennsylvania, is another refreshing autumn month, with temperature in the range of an average low of 48.9°F (9.4°C) and an average high of 63.5°F (17.5°C). October brings a minor decrease, with the average high-temperature reducing from a warm 75.7°F (24.3°C) in September to an enjoyable 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 Rocky Hill, Pennsylvania, with an average temperature ranging between min 37.4°F (3°C) and max 51.4°F (10.8°C). Transition from October to November is accompanied by a temperature drop, with average high-temperatures decreasing from a refreshing 63.5°F (17.5°C) to a fresh 51.4°F (10.8°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Rocky Hill, Pennsylvania, with an average temperature fluctuating between 31.1°F (-0.5°C) and 42.3°F (5.7°C). Rocky Hill's weather in December involves a decrease in the average high-temperature, moving down from November's fresh 51.4°F (10.8°C) to a wintry 42.3°F (5.7°C). Weather in December »
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Frequently asked questions

What is the coldest month in Rocky Hill?

With its average high temperature of 36.1°F (2.3°C) and a low of 24.3°F (-4.3°C), January is regarded as the coldest month in Rocky Hill, Pennsylvania.

What is the driest month in Rocky Hill?

The month with the least rainfall is January, when the rain falls for 5 days and typically collects 0.79" (20mm) of precipitation.

How many days does it rain in Rocky Hill?

Throughout the year, there are 124.6 rainfall days, and 14.25" (362mm) of precipitation is accumulated.

When does it snow in Rocky Hill?

January through May, November and December are months with snowfall in Rocky Hill.

How much does it snow in Rocky Hill?

In Rocky Hill, during the entire year, snow falls for 18.5 days and aggregates up to 5.51" (140mm) of snow.

What is the month with the lowest UV index in Rocky Hill?

The months with the lowest UV index in Rocky Hill, Pennsylvania, are January through March, November and December, with an average maximum UV index of 2.

What is the most humid month in Rocky Hill?

February and October, with an average relative humidity of 79%, are most humid months in Rocky Hill, Pennsylvania.

What is the month with the least sunshine in Rocky Hill?

February has the least sunshine of the year in Rocky Hill, with an average of 4.5h of sunshine.

What is the snowiest month in Rocky Hill?

The month with the most snowfall is March, when snow falls for 4.5 days and typically aggregates up to 1.57" (40mm) of snow.

When is Daylight Saving Time (DST) in Rocky Hill?

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 in Rocky Hill?

The months with the lowest humidity are April and July, with an average relative humidity of 73%.

What is the month with the highest UV index in Rocky Hill?

The months with the highest UV index in Rocky Hill, Pennsylvania, are May through August, with an average maximum UV index of 6.

When it does not snow in Rocky Hill?

In Rocky Hill, Pennsylvania, snow does not fall in June through October.

When are the longest days in Rocky Hill?

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

What are the warmest months in Rocky Hill?

Rocky Hill's July weather reaches an average high of 84.9°F (29.4°C) and an average low of 67.5°F (19.7°C), making it the warmest month.

What month has the most sunshine in Rocky Hill?

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

What is the rainiest month in Rocky Hill?

The month with the most rainfall in Rocky Hill, Pennsylvania, is August, when the rain falls for 14.4 days and typically aggregates up to 1.89" (48mm) of precipitation.

What is the month with the shortest days in Rocky Hill?

The month with the shortest days in Rocky Hill is December, with an average of 9h and 24min of daylight.

Average temperature
Rocky Hill, PA

Average temperature - Rocky Hill, PA

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.1°F).

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure
Rocky Hill, PA

Average pressure - Rocky Hill, 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
Rocky Hill, PA

Average wind speed - Rocky Hill, PA

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity
Rocky Hill, PA

Average humidity - Rocky Hill, PA

The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April and July (73%).

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Average rainfall
Rocky Hill, PA

Average rainfall - Rocky Hill, PA

The wettest month (with the highest rainfall) is August (1.89").
The driest month (with the least rainfall) is January (0.79").

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Average rainfall days
Rocky Hill, PA

Average rainfall days - Rocky Hill, PA

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (5 days).

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Average snowfall
Rocky Hill, PA

Average snowfall - Rocky Hill, PA

The month with the highest snowfall is March (1.57").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days
Rocky Hill, PA

Average snowfall days - Rocky Hill, PA

The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Rocky Hill, PA

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

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Average sunshine days
Rocky Hill, PA

Average sunshine days - Rocky Hill, PA

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is June (13.3 days).

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Average UV index
Rocky Hill, PA

Average UV index - Rocky Hill, PA

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

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Average visibility
Rocky Hill, PA

Average visibility - Rocky Hill, PA

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

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Rocky Hill, Pennsylvania, USA

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