Climate and monthly weather forecast
Cary, NC

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The climate of Cary

Cary, North Carolina, USA, experiences a Humid subtropical climate, classified as Cfa according to the Köppen climate classification, with no designated dry season. Geographically situated inland, away from the coastal region, the town experiences moderate conditions throughout the year. Weather in Cary can be characterized by moderately hot summers and mild winters, with rainfall evenly distributed across the year.

Average high temperatures range from 48°F (8.9°C) in January, the coldest month, to 89.8°F (32.1°C) in July, the warmest. Average lows register between 32.5°F (0.3°C) in January to 70.9°F (21.6°C) in July. Humidity stays relatively constant throughout the year, with only a modest variation between 71 to 76%.

Rainfall averages vary from 2.17" (55mm) in October to a peak of 3.15" (80mm) in May. There is a relatively balanced distribution of days with rainfall, with the highest number in May (17.7 days) and the lowest in November (9.1 days). Meanwhile, snowfall is almost exclusively reserved for the colder months, from November to February, reaching a peak of 1.61" (41mm) in January.

Daylight hours are longest in June with 14.6 hours and shortest in December with 9.8 hours. Sunshine hours also vary through the year, reaching a high of 10.8 hours a day in July and a low of 5.5 hours a day in December. The UV Index peaks at 7 during July, indicating a high risk of harm from unprotected sun exposure for the average person.

The best time to visit Cary

The best time to visit Cary is between April and June, when the weather is pleasantly warm and the city is in full bloom. During this period, high temperatures range from 70.5°F (21.4°C) to 86°F (30°C), while low temperatures vary from 52°F (11.1°C) to 67.5°F (19.7°C). The daylight hours extend up to 14.1 to 14.6 hours, giving visitors ample opportunity to explore.

The worst time to visit Cary

The less desirable time to visit Cary is in the winter months of December through February, with average high temperatures from 48°F (8.9°C) to 59.2°F (15.1°C) and lows dropping to between 32.5°F (0.3°C) and 42.1°F (5.6°C). Additionally, these months record the lowest daylight hours, reducing the window for outdoor activities.

Spring weather in Cary

Spring temperatures in Cary see a shift from 52.9°F (11.6°C) to 70.5°F (21.4°C) between February and April, while lows rise from 35.8°F (2.1°C) to 52Degrees Fahrenheit. Rainfall in these months ranges between 2.28" (58mm) to 2.56" (65mm) with about 11.7 to 14.7 days of rainfall.

Summer weather in Cary

Summers in Cary from May to July witness high temperatures from 78.6°F (25.9°C) to 89.8°F (32.1°C). The lows range between 60.3°F (15.7°C) and 70.9°F (21.6°C), while rainfall is between 2.91" (74mm) and 3.15" (80mm), resulting in about 15.4 to 17.7 days of rainfall.

Autumn weather in Cary

Autumn in Cary sees a reduction in temperatures from highs of 81.9°F (27.7°C) in September to 70.7°F (21.5°C) in October and lows fluctuating between 63.9°F (17.7°C) to 53.2°F (11.8°C). Rainfall is comparatively lower, ranging from 2.17" (55mm) to 2.36" (60mm), with about 10 to 12.5 rainy days in these months.

Winter weather in Cary

Winter in Cary is mild compared to other parts of the USA. High temperatures range from 59.4°F (15.2°C) in November to 48°F (8.9°C) in January. The lows range between 38.1°F (3.4°C) and 42.3°F (5.7°C), with snowfall recording the highest in January at 1.61" (41mm). Rainfall ranges from 2.56" (65mm) to 2.76" (70mm), and the days with rain remain relatively low, from 9.1 in November to 11.1 days in December.

Weather in January

Commencing the year, temperatures in Cary, North Carolina start to rise slightly from the freezing point. Nonetheless, January still records the coldest temperature than any other month with the highest and lowest temperature ranging between 48°F (8.9°C) to 32.5°F (0.3°C). Weather in January »

Weather in February

February sees further increase in temperature as Cary transitions from the coldest month, with a notable increase in sunshine hours as well. The month witnesses a slight increase in rainfall, standing at 2.28" (58mm) over 11.7 days of rainfall. Weather in February »

Weather in March

March signals the commencement of spring season in Cary, with significant increase in temperature and daylight hours. Interestingly, the month reports 2.48" (63mm) of rainfall spread over 14.3 days, which is comparatively higher, amplifying humidity levels. Weather in March »

Weather in April

April heralds warmer weather than previous months as daylight hours continue to extend. April's unique feature is its highest recorded wind speed, averaging 7.8mph (12.6km/h) over the course of the month. Increased temperatures result in a pleasant and comfortable scenario for engaging in outdoor activities. Weather in April »

Weather in May

The weather during May in Cary, tends to be mild and comfortable, marking the arrival of consistent warm weather. This month records the highest level of rainfall at 3.15" (80mm), spread over 17.7 days. The moderate temperatures combined with extended daylight hours, make May an ideal month for various outdoor activities such as hiking, biking and gardening. Weather in May »

Weather in June

June ushers in the summer season with a noticeable rise in temperature. Despite recording 2.91" (74mm) of rainfall, June showcases a relatively lower humidity of 72% compared to other months. Warmer temperatures and longer days are welcoming for a myriad of outdoor activities, including beach visits due to close proximity of Cary to North Carolina's coast. Weather in June »

Weather in July

July is the height of summer in Cary as it exhibits the highest temperature at 89.8°F (32.1°C). The average UV index for the month is at its peak of the year at 7, urging residents to be cautious and use sunscreen. The propensity of thunderstorm activity increases, specifically in the afternoons and evenings. Weather in July »

Weather in August

As summer proceeds to its last stages, August displays marginally lower temperatures than July in Cary. Those who are heat intolerant may find relief in August's increased rainfall amounting to 2.99" (76mm). Beach visits are common due to the warm temperatures and extended daylight hours. Weather in August »

Weather in September

In September, the soothing signs of autumn start to manifest in Cary, with a decrease in temperature and daylight hours. September, much like the preceding month, records an average of 2.36" (60mm) of rainfall spread over 12.5 days. Weather in September »

Weather in October

October in Cary is dominated by clear crisp days with mild temperatures. Compared to September, rainfall reduces to 2.17" (55mm), making it one of the driest months. Although humidity lingers, cooler temperatures make the weather feel quite agreeable. Weather in October »

Weather in November

As we land into November, the autumn season begins its transition into winter in Cary, with notable reduction in temperature. With a comparative increase in rainfall to 2.76" (70mm), the month becomes another reason to appreciate the rainfall gear. Weather in November »

Weather in December

December carries winter into full swing in Cary, with temperatures dropping to as low as 38.1°F (3.4°C). The month registers a small amount of snowfall at 0.67" (17mm), bringing a festive touch to the holiday season. The drop in temperature accompanied by colder winds make winter apparels a necessity. Weather in December »
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Frequently asked questions

What month is the coldest in Cary?

January, characterized by an average high temperature of 48°F (8.9°C) and a low temperature of 32.5°F (0.3°C), is generally the coldest month in Cary.

How many days does it rain in Cary?

In Cary, North Carolina, during the entire year, the rain falls for 161.9 days and collects up to 31.18" (792mm) of precipitation.

When does it snow in Cary?

January through March, November and December are months with snowfall.

When does it snow the most in Cary?

The month with the most snowfall in Cary is January, when snow falls for 1.6 days and typically aggregates up to 1.61" (41mm) of snow.

How many days does it snow in Cary?

In Cary, during the entire year, snow falls for 5.9 days and aggregates up to 4.37" (111mm) of snow.

When is the lowest UV index in Cary?

January is the month with the lowest UV index in Cary, North Carolina, with an average maximum UV index of 2.

When is Daylight Saving Time (DST) in Cary?

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.

When it does not snow in Cary?

April through October are months without snowfall in Cary.

What is the rainiest month in Cary?

May is the month with the most rainfall in Cary. Rain falls for 17.7 days and accumulates 3.15" (80mm) of precipitation.

When are the longest days in Cary?

June has the longest days of the year in Cary, with an average of 14h and 30min of daylight.

What month is the hottest in Cary?

The highest temperatures in Cary, North Carolina, are recorded in July, with averages reaching a high of 89.8°F (32.1°C) and a low of 70.9°F (21.6°C).

What is the least humid month in Cary?

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

What month has the most sunshine in Cary?

The month with the most sunshine in Cary is July, with an average of 10.8h of sunshine.

When is the highest UV index in Cary?

The month with the highest UV index is July, with an average maximum UV index of 7.

What is the driest month in Cary?

October is the month with the least rainfall. Rain falls for 10 days and accumulates 2.17" (55mm) of precipitation.

What is the most humid month in Cary?

The most humid month in Cary, North Carolina, is December, with an average relative humidity of 76%.

What is the month with the shortest days in Cary?

With an average of 9h and 48min of daylight, December has the shortest days of the year.

What is the month with the least sunshine in Cary?

With an average of 5.5h of sunshine, December has the least sunshine of the year.

Average pressure
Cary, NC

Average pressure - Cary, NC

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed
Cary, NC

Average wind speed - Cary, NC

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average rainfall
Cary, NC

Average rainfall - Cary, NC

The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is October (2.17").

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Average rainfall days
Cary, NC

Average rainfall days - Cary, NC

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is November (9.1 days).

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Average snowfall
Cary, NC

Average snowfall - Cary, NC

The month with the highest snowfall is January (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Cary, NC

Average snowfall days - Cary, NC

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Cary, NC

Average daylight / Average sunshine - Cary, NC

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days
Cary, NC

Average sunshine days - Cary, NC

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.3 days).

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Average visibility
Cary, NC

Average visibility - Cary, NC

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

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Cary, North Carolina, USA

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