Climate and monthly weather forecast
Oakville, CT

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Weather in January

January, like December, in Oakville, Connecticut, is a wintry winter month, with an average temperature varying between 33.3°F (0.7°C) and 21.4°F (-5.9°C). Oakville experiences its lowest average temperatures in January, reaching a peak of 33.3°F (0.7°C) and a minimum of 21.4°F (-5.9°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Oakville, Connecticut, with temperature in the range of an average high of 36°F (2.2°C) and an average low of 21.9°F (-5.6°C). Stepping into February, Oakville records an average high-temperature of a still wintry 36°F (2.2°C), almost consistent with January. Weather in February »

Weather in March

March, the first month of the spring in Oakville, is a frosty month, with an average temperature varying between 29.1°F (-1.6°C) and 44.1°F (6.7°C). In Oakville, stepping into March brings a gentle temperature nudge, moving slightly up from February's icy 36°F (2.2°C) to a chilly 44.1°F (6.7°C). Weather in March »

Weather in April

April is a moderate spring month in Oakville, Connecticut, with an average temperature varying between 39.7°F (4.3°C) and 56.7°F (13.7°C). With the onset of April, Oakville's average high-temperature experiences a rise, moving from March's frosty 44.1°F (6.7°C) to a refreshing 56.7°F (13.7°C). Weather in April »

Weather in May

May, the last month of the spring in Oakville, is a pleasant month, with temperature in the range of an average low of 48.9°F (9.4°C) and an average high of 68.2°F (20.1°C). May marks a rise in the average high-temperature, moving from April's mild 56.7°F (13.7°C) to a pleasant 68.2°F (20.1°C). Weather in May »

Weather in June

June, the first month of the summer in Oakville, is a warm month, with an average temperature ranging between min 56.7°F (13.7°C) and max 76.1°F (24.5°C). June introduces a minor temperature shift, with average high-temperatures adjusting from May's agreeable 68.2°F (20.1°C) to a moderately hot 76.1°F (24.5°C). Weather in June »

Weather in July

July, like June, in Oakville, Connecticut, is a moderately hot summer month, with an average temperature varying between 63.1°F (17.3°C) and 82.4°F (28°C). Oakville witnesses the warmest weather in July, with temperatures averaging a high of 82.4°F (28°C) and a low of 63.1°F (17.3°C). In July, the average heat index is computed to be a hot 89.6°F (32°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Oakville, Connecticut, with temperature in the range of an average high of 80.6°F (27°C) and an average low of 61.7°F (16.5°C). Oakville records an average high-temperature of a still warm 80.6°F (27°C) in August, maintaining a close correlation with July's 82.4°F (28°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Oakville, Connecticut, with temperature in the range of an average high of 73.2°F (22.9°C) and an average low of 55.6°F (13.1°C). As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a warm 80.6°F (27°C) to a pleasant 73.2°F (22.9°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Oakville, Connecticut, with an average temperature varying between 61°F (16.1°C) and 46.6°F (8.1°C). Observing a mild shift, the average high-temperature during October reduces from September's agreeable 73.2°F (22.9°C) to an enjoyable 61°F (16.1°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Oakville, Connecticut, with temperature in the range of an average low of 35.6°F (2°C) and an average high of 48.6°F (9.2°C). Setting in of November comes with a decrease in the average high-temperature, moving from a comfortable 61°F (16.1°C) in October to a chilly 48.6°F (9.2°C). Weather in November »

Weather in December

December, the first month of the winter in Oakville, is still a cold month, with temperature in the range of an average high of 38.7°F (3.7°C) and an average low of 28°F (-2.2°C). The arrival of December signals a shift in temperature, down from a frosty 48.6°F (9.2°C) in November to a cold 38.7°F (3.7°C). Weather in December »
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Oakville?

Oakville's coldest month, January, generally records average temperatures ranging from a high of 33.3°F (0.7°C) to a low of 21.4°F (-5.9°C).

How many days does it rain in Oakville?

In Oakville, during the entire year, the rain falls for 158.5 days and collects up to 34.57" (878mm) of precipitation.

When does it snow in Oakville?

January through May, October through December are months with snowfall in Oakville, Connecticut.

How much does it snow in Oakville?

Throughout the year, in Oakville, Connecticut, there are 34.9 snowfall days, and 20.35" (517mm) of snow is accumulated.

What are the months with the lowest UV index in Oakville?

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

What is the most humid month in Oakville?

February is the most humid month in Oakville, with an average relative humidity of 80%.

When does it snow the most in Oakville?

February is the month with the most snowfall in Oakville. Snow falls for 9.2 days and accumulates 5.39" (137mm) of snow.

What is the month with the least sunshine in Oakville?

The month with the least sunshine in Oakville, Connecticut, is February, with an average of 4.5h of sunshine.

When is Daylight Saving Time (DST) in Oakville?

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 Oakville?

The least humid month is April, with an average relative humidity of 72%.

When it does not snow in Oakville?

In Oakville, snow does not fall in June through September.

When are the longest days in Oakville?

With an average of 15h and 6min of daylight, June has the longest days of the year in Oakville, Connecticut.

What is the month with the highest UV index in Oakville?

The months with the highest UV index in Oakville, Connecticut, are June through August, with an average maximum UV index of 6.

What are the warmest months in Oakville?

July is the month when Oakville, Connecticut, sees the average highest temperatures, with a high of 82.4°F (28°C) and a low of 63.1°F (17.3°C).

What is the month with the most sunshine in Oakville?

The months with the most sunshine in Oakville, Connecticut, are July and August, with an average of 10.1h of sunshine.

What is the driest month in Oakville?

The month with the least rainfall is September, when the rain falls for 13 days and typically collects 2.13" (54mm) of precipitation.

What is the rainiest month in Oakville?

The month with the most rainfall in Oakville is December, when the rain falls for 10.5 days and typically aggregates up to 3.78" (96mm) of precipitation.

What is the month with the shortest days in Oakville?

With an average of 9h and 12min of daylight, December has the shortest days of the year in Oakville.

Average temperature
Oakville, CT

Average temperature - Oakville, CT

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.3°F).

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

Average pressure
Oakville, CT

Average pressure - Oakville, 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
Oakville, CT

Average wind speed - Oakville, CT

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity
Oakville, CT

Average humidity - Oakville, CT

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (72%).

Average rainfall
Oakville, CT

Average rainfall - Oakville, CT

The wettest month (with the highest rainfall) is December (3.78").
The driest month (with the least rainfall) is September (2.13").

Average rainfall days
Oakville, CT

Average rainfall days - Oakville, CT

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.3 days).

Average snowfall
Oakville, CT

Average snowfall - Oakville, CT

The month with the highest snowfall is February (5.39").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Oakville, CT

Average snowfall days - Oakville, CT

The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Oakville, CT

Average daylight / Average sunshine - Oakville, CT

The month with the longest days is June (Average daylight: 15h and 6min).
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 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days
Oakville, CT

Average sunshine days - Oakville, CT

The month with the most sunshine days is January (18.1 days).
The month with the least sunshine days is June (11.1 days).

Average UV index
Oakville, CT

Average UV index - Oakville, 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 visibility
Oakville, CT

Average visibility - Oakville, 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).

Oakville, Connecticut, USA

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