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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is another cold winter month in Rockville, Connecticut, with an average temperature varying between 19.8°F (-6.8°C) and 32.4°F (0.2°C). Rockville notes the coldest temperatures in January, with a high average of 32.4°F (0.2°C) and a low of 19.8°F (-6.8°C). Weather in January »
Weather in February
The last month of the winter, February, is also a wintry month in Rockville, Connecticut, with temperature in the range of an average low of 20.7°F (-6.3°C) and an average high of 35.2°F (1.8°C). Rockville, Connecticut, records an average high-temperature of a still icy 35.2°F (1.8°C) in February, closely mirroring the climate of the previous month. Weather in February »
Weather in March
March, the first month of the spring in Rockville, is a frosty month, with an average temperature ranging between min 28.8°F (-1.8°C) and max 43.3°F (6.3°C). Rockville's transition into March is noticed by a slight rise in the average high-temperature, advancing from an icy 35.2°F (1.8°C) in February to a frosty 43.3°F (6.3°C). Weather in March »
Weather in April
April in Rockville, Connecticut, is a moderate spring month, with temperature in the range of an average low of 38.8°F (3.8°C) and an average high of 56.3°F (13.5°C). In Rockville, the onset of April comes with an increased average high-temperature, moving from March's chilly 43.3°F (6.3°C) to a refreshing 56.3°F (13.5°C). Weather in April »
Weather in May
May, the last month of the spring in Rockville, is a pleasant month, with an average temperature fluctuating between 68.4°F (20.2°C) and 48.6°F (9.2°C). Rockville in May sees a temperature change, with average high-temperatures moving from a mild 56.3°F (13.5°C) in April to an agreeable 68.4°F (20.2°C). Weather in May »
Weather in June
June, the first month of the summer in Rockville, is a moderately hot month, with an average temperature varying between 55.6°F (13.1°C) and 75.7°F (24.3°C). In June, the meteorological conditions subtly change with the average high-temperature edging from a pleasant 68.4°F (20.2°C) in May to a warm 75.7°F (24.3°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Rockville, Connecticut, with an average temperature varying between 62.6°F (17°C) and 82.2°F (27.9°C). July, with an average high of 82.2°F (27.9°C) and a low of 62.6°F (17°C), signifies the warmest month of the year. Throughout July, the heat index is appraised at a tropical 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Rockville, Connecticut, with an average temperature varying between 80.1°F (26.7°C) and 61.3°F (16.3°C). An average high-temperature of a still moderately hot 80.1°F (26.7°C) marks August, exhibiting a close resemblance to the conditions in July. Weather in August »
Weather in September
September, the first month of the autumn in Rockville, is also a moderately hot month, with an average temperature varying between 54.5°F (12.5°C) and 73.4°F (23°C). With the onset of September, Rockville's climate undergoes a slight change as the average high-temperature moves from 80.1°F (26.7°C) in August to a still warm 73.4°F (23°C). Weather in September »
Weather in October
October, the same as September, in Rockville, Connecticut, is another mild autumn month, with temperature in the range of an average high of 60.4°F (15.8°C) and an average low of 45.5°F (7.5°C). October indicates a shift in the average high-temperature, from September's warm 73.4°F (23°C) to a refreshing 60.4°F (15.8°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Rockville, Connecticut, with an average temperature varying between 34.7°F (1.5°C) and 48.4°F (9.1°C). Arrival of November comes with a reduction in the average high-temperature, falling from a mild 60.4°F (15.8°C) in October to a chilly 48.4°F (9.1°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Rockville, Connecticut, with temperature in the range of an average low of 27.1°F (-2.7°C) and an average high of 38.1°F (3.4°C). December brings a drop in Rockville's average high-temperature, falling from a frosty 48.4°F (9.1°C) in November to a wintry 38.1°F (3.4°C). Weather in December »
Updated: Feb 10, 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
What is the coldest month in Rockville?
January stands out as Rockville's coldest month, with an average high-temperature of 32.4°F (0.2°C) and a low-temperature of 19.8°F (-6.8°C).
How much does it rain in Rockville?
In Rockville, Connecticut, during the entire year, the rain falls for 105.6 days and collects up to 9.84" (250mm) of precipitation.
When does it snow in Rockville?
January through May, November and December are months with snowfall.
How much does it snow in Rockville?
In Rockville, during the entire year, snow falls for 23.1 days and aggregates up to 4.69" (119mm) of snow.
What is the month with the lowest UV index in Rockville?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the most humid month in Rockville?
The most humid month in Rockville, Connecticut, is February, with an average relative humidity of 80%.
What is the snowiest month in Rockville?
The month with the most snowfall in Rockville is February, when snow falls for 6.4 days and typically aggregates up to 1.5" (38mm) of snow.
What is the month with the least sunshine in Rockville?
February has the least sunshine of the year, with an average of 4.6h of sunshine.
When is Daylight Saving Time (DST) in Rockville?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Rockville, 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 Rockville?
The least humid month in Rockville is April, with an average relative humidity of 71%.
What is the wettest month in Rockville?
The months with the most rainfall are May through July, with an average 1.1" (28mm) of precipitation.
When it does not snow in Rockville?
June through October are months without snowfall in Rockville, Connecticut.
When are the longest days in Rockville?
June has the longest days of the year in Rockville, with an average of 15h and 12min of daylight.
What is the month with the highest UV index in Rockville?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What month is the hottest in Rockville?
July stands out as Rockville's warmest month, with temperatures ranging between an average high of 82.2°F (27.9°C) and a low of 62.6°F (17°C).
What are the months with the most sunshine in Rockville?
The months with the most sunshine in Rockville are July and August, with an average of 10.3h of sunshine.
What is the driest month in Rockville?
The month with the least rainfall is September, when the rain falls for 7.9 days and typically collects 0.39" (10mm) of precipitation.
What is the month with the shortest days in Rockville?
The month with the shortest days in Rockville, Connecticut, is December, with an average of 9h and 12min of daylight.
Average temperature
Rockville, CT
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.4°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 (19.8°F).
Average pressure
Rockville, 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:
29.97"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:
30.08"Hg - Average pressure in December:
30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Rockville, CT
- Average wind speed in January:
8.2mph - Average wind speed in February:
8.1mph - Average wind speed in March:
8.2mph - Average wind speed in April:
7.8mph - Average wind speed in May:
6.6mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.8mph - Average wind speed in October:
6.9mph - 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 (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
Rockville, CT
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).
Average rainfall
Rockville, CT
- Average rainfall in January:
0.51" - Average rainfall in February:
0.59" - Average rainfall in March:
0.67" - Average rainfall in April:
0.87" - Average rainfall in May:
1.1" - Average rainfall in June:
1.1"
- Average rainfall in July:
1.1" - Average rainfall in August:
0.91" - Average rainfall in September:
0.39" - Average rainfall in October:
0.91" - Average rainfall in November:
0.91" - Average rainfall in December:
0.79"
The wettest months (with the highest rainfall) are May, June and July (1.1").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days
Rockville, CT
- Average rainfall days in January:
5.5 days - Average rainfall days in February:
5.5 days - Average rainfall days in March:
8.2 days - Average rainfall days in April:
10.8 days - Average rainfall days in May:
11.5 days - Average rainfall days in June:
12.1 days
- Average rainfall days in July:
11.3 days - Average rainfall days in August:
9.8 days - Average rainfall days in September:
7.9 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
6.5 days - Average rainfall days in December:
7 days
The month with the highest number of rainy days is June (12.1 days).
The months with the least rainy days are January and February (5.5 days).
Average snowfall
Rockville, CT
- Average snowfall in January:
0.71" - Average snowfall in February:
1.5" - Average snowfall in March:
0.59" - Average snowfall in April:
0.55" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Rockville, CT
- Average snowfall days in January:
5.3 days - Average snowfall days in February:
6.4 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
1.1 days - Average snowfall days in May:
0.1 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:
0.3 days - Average snowfall days in November:
1.6 days - Average snowfall days in December:
3.5 days
The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Rockville, CT
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
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 0min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 0min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 3min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Rockville, CT
- Average sunshine days in January:
21.9 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
19.9 days - Average sunshine days in April:
17.2 days - Average sunshine days in May:
17.3 days - Average sunshine days in June:
15.7 days
- Average sunshine days in July:
17 days - Average sunshine days in August:
18.3 days - Average sunshine days in September:
19.8 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
20.8 days - Average sunshine days in December:
20.4 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is June (15.7 days).
Average UV index
Rockville, CT
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Rockville, CT
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Rockville, CT
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).
Rockville, Connecticut, USA
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