Climate and monthly weather forecastRocky Hill, CT
Climate and monthly weather forecast
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
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
In Rocky Hill, during the entire year, the rain falls for 164.5 days and collects up to 32.09" (815mm) of precipitation.
Months with snowfall are January through May, November and December.
Throughout the year, there are 29.1 snowfall days, and 15.63" (397mm) of snow is accumulated.
The most humid month is February, with an average relative humidity of 79%.
February is the month with the most snowfall. Snow falls for 8.1 days and accumulates 4.45" (113mm) of snow.
The month with the least sunshine is February, with an average of 4.6h of sunshine.
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.
The least humid month is April, with an average relative humidity of 70%.
In Rocky Hill, snow does not fall in June through October.
With an average of 15h and 12min of daylight, June has the longest days of the year.
The months with the highest UV index are June and July, with an average maximum UV index of 6.
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.
July and August, with an average of 10.4h of sunshine, are months with the most sunshine.
The month with the least rainfall is September, when the rain falls for 12.8 days and typically collects 1.93" (49mm) of precipitation.
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.
December has the shortest days of the year, with an average of 9h and 12min of daylight.
With an average maximum UV index of 1, December is the month with the lowest UV index.
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 in January:
30.03"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.05"Hg
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 in January:
8.1mph - Average wind speed in February:
8mph - Average wind speed in March:
8.1mph - Average wind speed in April:
7.8mph - Average wind speed in May:
6.5mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.3mph - Average wind speed in September:
5.8mph - Average wind speed in October:
7mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.8mph
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
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 in January:
2.2" - Average rainfall in February:
2.24" - Average rainfall in March:
2.6" - Average rainfall in April:
2.87" - Average rainfall in May:
2.6" - Average rainfall in June:
2.87"
- Average rainfall in July:
2.99" - Average rainfall in August:
2.72" - Average rainfall in September:
1.93" - Average rainfall in October:
3.07" - Average rainfall in November:
2.8" - Average rainfall in December:
3.19"
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 in January:
9.2 days - Average rainfall days in February:
9.6 days - Average rainfall days in March:
12.5 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
17.6 days - Average rainfall days in August:
17 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
14.5 days - Average rainfall days in November:
10.5 days - Average rainfall days in December:
11.3 days
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 in January:
2.87" - Average snowfall in February:
4.45" - Average snowfall in March:
3.7" - Average snowfall in April:
0.79" - Average snowfall in May:
0.31" - Average snowfall in June:
0"
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 in January:
7.1 days - Average snowfall days in February:
8.1 days - Average snowfall days in March:
5.8 days - Average snowfall days in April:
1.1 days - Average snowfall days in May:
0.2 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.4 days - Average snowfall days in December:
5.3 days
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 in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 12min
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).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 12min - Average sunshine in April:
8h and 18min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 24min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 48min
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 in January:
17.6 days - Average sunshine days in February:
13.6 days - Average sunshine days in March:
13.5 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
11 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
11.4 days - Average sunshine days in September:
13.9 days - Average sunshine days in October:
14.7 days - Average sunshine days in November:
17.1 days - Average sunshine days in December:
15.5 days
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 UV index
Rocky Hill, CT
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Rocky Hill, CT
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
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).
