Monthly weather forecast and climate
Rockville, CT

Weather in January

January, the same as December, is another cold winter month in Rockville, Connecticut, with average temperature fluctuating between 32.4°F (0.2°C) and 19.8°F (-6.8°C). The coldest month is January, with an average high-temperature of 32.4°F (0.2°C) and an average low-temperature 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 average temperature fluctuating between 35.2°F (1.8°C) and 20.7°F (-6.3°C). In Rockville, the average high-temperature in February is relatively the same as in January - a still cold 35.2°F (1.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Rockville, Connecticut, with temperature in the range of an average high of 43.3°F (6.3°C) and an average low of 28.8°F (-1.8°C). In March, the average high-temperature marginally rises, from a wintry 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 mild spring month, with average temperature ranging between min 38.8°F (3.8°C) and max 56.3°F (13.5°C). In April, the average high-temperature rises, from a frosty 43.3°F (6.3°C) in March, to a moderate 56.3°F (13.5°C). Weather in April »

Weather in May

May, the last month of the spring, in Rockville, is an agreeable month, with average temperature ranging between min 48.6°F (9.2°C) and max 68.4°F (20.2°C). In May, the average high-temperature increases, from a moderate 56.3°F (13.5°C) in April, to a pleasant 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 temperature in the range of an average low of 55.6°F (13.1°C) and an average high of 75.7°F (24.3°C). In Rockville, the average high-temperature marginally rises, from an agreeable 68.4°F (20.2°C) in May, to a warm 75.7°F (24.3°C). Weather in June »

Weather in July

July, like June, in Rockville, Connecticut, is a moderately hot summer month, with average temperature ranging between min 62.6°F (17°C) and max 82.2°F (27.9°C). The warmest month is July, with an average high-temperature of 82.2°F (27.9°C) and an average low-temperature of 62.6°F (17°C). The average heat index is evaluated at a hot 88.3°F (31.3°C). Weather in July »

Weather in August

August, the last month of the summer, in Rockville, is also a moderately hot month, with average temperature fluctuating between 80.1°F (26.7°C) and 61.3°F (16.3°C). In Rockville, Connecticut, the average high-temperature is practically the same as in July - a still warm 80.1°F (26.7°C). Weather in August »

Weather in September

September, the first month of the autumn, in Rockville, is still a warm month, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 73.4°F (23°C). In Rockville, the average high-temperature slightly decreases, from 80.1°F (26.7°C) in August, to a still moderately hot 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 average temperature ranging between max 60.4°F (15.8°C) and min 45.5°F (7.5°C). In October, the average high-temperature drops, from a warm 73.4°F (23°C) in September, to a moderate 60.4°F (15.8°C). Weather in October »

Weather in November

November, the last month of the autumn, in Rockville, is also a frosty month, with average temperature varying between 48.4°F (9.1°C) and 34.7°F (1.5°C). In Rockville, the average high-temperature in November drops, from a moderate 60.4°F (15.8°C) in October, to a frosty 48.4°F (9.1°C). Weather in November »

Weather in December

December, the first month of the winter, in Rockville, is still a cold month, with temperature in the range of an average high of 38.1°F (3.4°C) and an average low of 27.1°F (-2.7°C). In Rockville, the average high-temperature in December decreases, from a chilly 48.4°F (9.1°C) in November, to a wintry 38.1°F (3.4°C). Weather in December »
[Resources]

FAQ

What is the coldest month in Rockville?

January is the coldest month in Rockville, with an average high-temperature of 32.4°F (0.2°C) and an average low-temperature of 19.8°F (-6.8°C).

How many days 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 in Rockville, Connecticut.

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.

When is the lowest UV index in Rockville?

Months with the lowest UV index in Rockville, Connecticut, are January through March, November and December, with an average maximum UV index of 2.

What is the most humid month in Rockville?

With an average relative humidity of 80%, February is the most humid month.

When does it snow the most in Rockville?

The month with the most snowfall in Rockville, Connecticut, 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?

With an average of 4.6h of sunshine, February has the least sunshine of the year in Rockville.

What is the least humid month in Rockville?

The least humid month is April, with an average relative humidity of 71%.

What is the wettest month in Rockville?

The wettest months are May through July, with an average 1.1" (28mm) of rainfall.

When it does not snow in Rockville?

June through October are months without snowfall in Rockville.

When are the longest days in Rockville?

The month with the longest days in Rockville, Connecticut, is June, with an average of 15.2h 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 is the warmest month in Rockville?

The warmest month in Rockville, Connecticut, is July, with an average high-temperature of 82.2°F (27.9°C) and an average low-temperature of 62.6°F (17°C).

What is the month with the most sunshine in Rockville?

July and August, with an average of 10.3h of sunshine, are months with the most sunshine.

What is the driest month in Rockville?

September is the month with the least rainfall in Rockville, Connecticut. Rain falls for 7.9 days and accumulates 0.39" (10mm) of precipitation.

What is the month with the shortest days in Rockville?

With an average of 9.2h of daylight, December has the shortest days of the year.

Average temperature
Rockville, CT

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).

[Resources]

Average pressure
Rockville, CT

Average pressure - Rockville, CT

The month with the highest atmospheric pressure is November (30.08").
The month with the lowest atmospheric pressure is June (29.93").

[Resources]

Average wind speed
Rockville, CT

Average wind speed - Rockville, CT

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).

[Resources]

Average rainfall
Rockville, CT

Average rainfall - Rockville, CT

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").

[Resources]

Average rainfall days
Rockville, CT

Average rainfall days - Rockville, CT

The month with the highest number of rainy days is June (12.1 days).
Months with the least rainy days are January and February (5.5 days).

[Resources]

Average snowfall
Rockville, CT

Average snowfall - Rockville, CT

The month with the highest snowfall is February (1.5").
Months with the least snowfall are June, July, August, September and October (0").

[Resources]

Average snowfall days
Rockville, CT

Average snowfall days - Rockville, CT

The month with the highest number of snowfall days is February (6.4 days).
Months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight / Average sunshine
Rockville, CT

Average daylight / Average sunshine - Rockville, CT

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

Months with the most sunshine are July and August (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 4.6h).

[Resources]

Average sunshine days
Rockville, CT

Average sunshine days - Rockville, CT

The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is June (15.7 days).

[Resources]

Average UV index
Rockville, CT

Average UV index - Rockville, CT

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

[Resources]

Average visibility
Rockville, CT

Average visibility - Rockville, CT

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

[Resources]