Climate and monthly weather forecast
Rocky Hill, CT

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Weather in January

January, like December, in Rocky Hill, Connecticut, is an icy winter month, with an average temperature fluctuating between 21.2°F (-6°C) and 33.4°F (0.8°C). Rocky Hill's temperature records reveal January as the coldest month, marked by average highs of 33.4°F (0.8°C) and lows of 21.2°F (-6°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Rocky Hill, Connecticut, with an average temperature fluctuating between 21.6°F (-5.8°C) and 36.1°F (2.3°C). The average high-temperature in February, at a still wintry 36.1°F (2.3°C), reveals a modest deviation from January's 33.4°F (0.8°C). Weather in February »

Weather in March

March, the first month of the spring in Rocky Hill, is a frosty month, with an average temperature fluctuating between 44.2°F (6.8°C) and 29.5°F (-1.4°C). Observing a slight rise in March, the average high-temperature shifts from February's wintry 36.1°F (2.3°C) to a chilly 44.2°F (6.8°C). Weather in March »

Weather in April

April is a mild spring month in Rocky Hill, Connecticut, with an average temperature ranging between max 56.7°F (13.7°C) and min 39.9°F (4.4°C). The start of April is characterized by an increase in the average high-temperature, transitioning from a chilly 44.2°F (6.8°C) in March to a refreshing 56.7°F (13.7°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Rocky Hill, Connecticut, with an average temperature ranging between max 68.5°F (20.3°C) and min 49.5°F (9.7°C). Rocky Hill in May sees a temperature change, with average high-temperatures moving from a mild 56.7°F (13.7°C) in April to a pleasant 68.5°F (20.3°C). Weather in May »

Weather in June

June, the first month of the summer in Rocky Hill, is a moderately hot month, with an average temperature fluctuating between 57°F (13.9°C) and 76.5°F (24.7°C). June brings a slight elevation in the average high-temperature, transitioning from May's pleasant 68.5°F (20.3°C) to a warm 76.5°F (24.7°C). Weather in June »

Weather in July

July, like June, in Rocky Hill, Connecticut, is a moderately hot summer month, with an average temperature ranging between min 63.7°F (17.6°C) and max 83.1°F (28.4°C). July, marked by an average high-temperature of 83.1°F (28.4°C) and a low-temperature of 63.7°F (17.6°C), is the warmest month. For most parts of July, the heat index is computed to be a hot 89.6°F (32°C). Weather in July »

Weather in August

August, the last month of the summer in Rocky Hill, is also a moderately hot month, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 62.2°F (16.8°C). The advent of August observes an average high-temperature of a still moderately hot 81°F (27.2°C), nearly identical to July's 83.1°F (28.4°C). Weather in August »

Weather in September

September, the first month of the autumn in Rocky Hill, is also a moderately hot month, with an average temperature varying between 73.4°F (23°C) and 55.6°F (13.1°C). September's arrival signals a moderate reduction in the average high-temperature, easing from 81°F (27.2°C) in August to a still warm 73.4°F (23°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Rocky Hill, Connecticut, with an average temperature fluctuating between 61.2°F (16.2°C) and 46.9°F (8.3°C). Start of October brings a shift in the average high-temperature, falling from September's warm 73.4°F (23°C) to an enjoyable 61.2°F (16.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Rocky Hill, Connecticut, with an average temperature varying between 36°F (2.2°C) and 48.9°F (9.4°C). The onset of November coincides with a reduction in the average high-temperature, falling from an enjoyable 61.2°F (16.2°C) in October to a frosty 48.9°F (9.4°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Rocky Hill, Connecticut, with an average temperature ranging between min 28.4°F (-2°C) and max 39°F (3.9°C). Rocky Hill's December weather features a mild decline in high-temperatures, reducing from a frosty 48.9°F (9.4°C) in November to a cold 39°F (3.9°C). Weather in December »
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Rocky Hill?

The coldest time of the year is January, with temperatures averaging a high of 33.4°F (0.8°C) and a low of 21.2°F (-6°C).

How much does it rain?

In Rocky Hill, during the entire year, the rain falls for 164.5 days and collects up to 32.09" (815mm) of precipitation.

When does it snow?

Months with snowfall are January through May, November and December.

How much does it snow?

Throughout the year, there are 29.1 snowfall days, and 15.63" (397mm) of snow is accumulated.

What is the most humid month?

The most humid month is February, with an average relative humidity of 79%.

What is the snowiest month?

February is the month with the most snowfall. Snow falls for 8.1 days and accumulates 4.45" (113mm) of snow.

What is the month with the least sunshine?

The month with the least sunshine is February, with an average of 4.6h of sunshine.

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?

The least humid month is April, with an average relative humidity of 70%.

When it does not snow?

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

When are the longest days?

With an average of 15h and 12min of daylight, June has the longest days of the year.

What are the months with the highest UV index?

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

What time of the year is the hottest?

July, with an average high of 83.1°F (28.4°C) and a low of 63.7°F (17.6°C), signifies the warmest month of the year.

What are the months with the most sunshine?

July and August, with an average of 10.4h of sunshine, are months with the most sunshine.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12.8 days and typically collects 1.93" (49mm) of precipitation.

What is the wettest month?

The month with the most rainfall is December, when the rain falls for 11.3 days and typically aggregates up to 3.19" (81mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 12min 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
Rocky Hill, CT

Average temperature - Rocky Hill, CT

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.4°F).

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure
Rocky Hill, CT

Average pressure - Rocky Hill, CT

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Rocky Hill, CT

Average wind speed - Rocky Hill, CT

The windiest months (with the highest average wind speed) are January and March (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity
Rocky Hill, CT

Average humidity - Rocky Hill, CT

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (70%).

Average rainfall
Rocky Hill, CT

Average rainfall - Rocky Hill, CT

The wettest month (with the highest rainfall) is December (3.19").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days
Rocky Hill, CT

Average rainfall days - Rocky Hill, CT

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is January (9.2 days).

Average snowfall
Rocky Hill, CT

Average snowfall - Rocky Hill, CT

The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days
Rocky Hill, CT

Average snowfall days - Rocky Hill, CT

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

Average daylight / Average sunshine
Rocky Hill, CT

Average daylight / Average sunshine - Rocky Hill, CT

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days
Rocky Hill, CT

Average sunshine days - Rocky Hill, CT

The month with the most sunshine days is January (17.6 days).
The month with the least sunshine days is June (10.7 days).

Average visibility
Rocky Hill, CT

Average visibility - Rocky Hill, CT

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

Rocky Hill, Connecticut, USA

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