Climate and monthly weather forecast
Kennesaw, GA

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The climate of Kennesaw

Situated in the southeastern part of the United States, the city of Kennesaw, Georgia lies in the region classified as a Humid subtropical climate according to the Köppen climate classification system. The predominant feature of this climate zone, denoted as Cfa, is the presence of no dry season alongside humid conditions.

An analysis of the city’s annual weather data showcases distinct variations across different seasons. Temperature swings are common in Kennesaw with monthly average highs ranging from 49.1°F (9.5°C) in the cooler months to 90.1°F (32.3°C) during the hotter period of the year. On the contrary, the lowest temperature averages from 33.6°F (0.9°C) to 70.2°F (21.2°C). The humidity remains fairly constant throughout the year varying between 70 to 78%.

An intriguing pattern appears with regards to rainfall. The city experiences an average annual rainfall between 2.44" (62mm) to 5.47" (139mm) and the frequency of rainy days fluctuates from 10.2 to 21.8 days per month. Interestingly, July and August observe the highest amount of rainfall. On the other hand, snowfall is almost negligible with a minimal amount recorded in the colder months, between 0.04" (1mm) to 0.98" (25mm) accompanied by 0.2 to 1.6 snowy days.

The best time to visit Kennesaw

Drawing on the provided climate data, the most favorable time for a visit to Kennesaw would be from late spring to early summer. During these months, daylight hours are at their peak, averaging between 13.9 hours to 14.4 hours per day. The relative temperature highs vary from 71.8°F (22.1°C) to 87.1°F (30.6°C), providing ample opportunity to explore the outdoors during the day. Moreover, humidity levels remain at around 72%, ensuring that visitors do not face excessive mugginess.

The worst time to visit Kennesaw

Travelers might want to avoid planning their trips to Kennesaw from July to August. This period sees the city at its wettest, with rainfall amounting from 5" (127mm) to 5.47" (139mm) and the number of rainy days soaring to 21.8 per month. Temperatures also reach their highest, with average highs from 89.1°F (31.7°C) to 90.1°F (32.3°C), which combined with the high humidity of 70% could be uncomfortable for those unaccustomed to such a climate.

Spring weather in Kennesaw

Spring months from March to May in Kennesaw witness a gradual rise in temperature. Average highs increase from 62.2°F (16.8°C) in March, to 80.2°F (26.8°C) by May. At the same time, lower temperatures inches upward from 44.4°F (6.9°C) to 60.3°F (15.7°C). Correspondingly, the daylight hours also increase from around 12 hours to about 13.9 hours. Rainfall moderately fluctuates from 3.7" (94mm) to 4.37" (111mm) and the number of rainy days hovers from 15.8 days to 18.3 days.

Summer weather in Kennesaw

Experiencing the traditional hot characteristics of a humid subtropical climate, Kennesaw sees temperatures soaring from June through August. July is particularly hot with an average high of 90.1°F (32.3°C). These high temperatures are accompanied by an increase in rainfall, with peak amounts reaching 5.47" (139mm) in August. However, the city enjoys an exceptional amount of daylight and sunshine during this period, ranging from 14.4 hours to 14.2 hours and 10.4 hours respectively.

Autumn weather in Kennesaw

The autumn season from September to November sees a gradual decrease in temperatures from the summer highs, with a reduction from 83.7°F (28.7°C) to 60.4°F (15.8°C) on average. Correspondingly, the cooler nights parallel this trend, dropping from 64.9°F (18.3°C) to 42.8°F (6°C). Rainfall reduces from the summer peaks to a more comfortable range of 2.99" (76mm) to 3.27" (83mm).

Winter weather in Kennesaw

Winter in Kennesaw commences in December and continues through February. It witnesses the city’s lowest temperatures with averages dipping to 53.4°F (11.9°C) in the day and as low as 33.6°F (0.9°C) at night. It is also the driest period of the year. Rainfall reaches its annual lowest in December at 3.27" (83mm) and encounters the least number of rainy days. The occurrence of snow is quite rare, yet it records a slight 0.75" (19mm) in December along with 1.6 snowy days.

Weather in January

The year in Kennesaw, Georgia initiates with the chill of the winter season, which contributes to the January weather being the coldest of the year. The skies tend to become a canvas characterized by dense cloud cover, encompassing the majority of days. Weather in January »

Weather in February

The transition from January to February brings about a slight escalation in temperature. Despite the subtle changes in climate conditions, February carries forward the wintery influence of January. Instances of snow falling decrease further compared to January, indicating the onset of the end of the wintery season. Weather in February »

Weather in March

The shift from February to March signifies the official commencement of the spring season in Kennesaw. Temperature values continue the upward trend, now registering in a comfortable range. Concurrently, the number of daylight hours and average sunshine hours continue to rise. Weather in March »

Weather in April

April proudly embraces the ever-pleasing spring weather of Kennesaw, with temperatures and daylight seeing a considerable increase compared to March. The noticeable transformation in Kennesaw's weather landscape is evidenced by the absence of snowfall. Weather in April »

Weather in May

May marks a significant transformation of weather in Kennesaw, signifying the transition from spring to the early onset of summer. The ensuing weather conditions enhance the greenery and vibrancy of the city, perfect for outdoor enthusiasts. Weather in May »

Weather in June

June invites the summer season in Kennesaw, exhibiting a significant rise in temperature in comparison to May. The duration of sunlight lengthens further, becoming the ideal setting for long summer activities. The city experiences the longest sunshine hours of the year, reinforcing the summer identity of June. Weather in June »

Weather in July

July, the zenith of the summer season, is characterized by the highest temperatures of the year in Kennesaw. Kudos to the extended sunlight hours, July offers ample time to bask in the delightful summer sun. However, the city also receives a significant amount of rainfall, reaching up to 5" (127mm) spread across 21.8 days. Weather in July »

Weather in August

As the calendar pages turn to August, Kennesaw experiences weather similar to that of July. By retaining substantially warm temperatures, August continues to uphold the summer vibe in Kennesaw. Minor fluctuations in weather conditions make the month of August relatively more comfortable than its predecessor. Weather in August »

Weather in September

The transition from August to September marks the commencement of the autumn season in Kennesaw. A noticeable drop in the average temperatures compared to August characteristics defines September’s weather. Rainfall is less frequent, with September recording 2.99" (76mm). Weather in September »

Weather in October

October carries forward the autumn vibe in Kennesaw with temperatures continuing on a downward trend from September. The city embraces the pleasant october weather that's characterized by cooler days and chilly nights. Notably, October witnesses a major drop in rainfall compared to September, measuring only up to 2.44" (62mm). Weather in October »

Weather in November

November is a transitional month in Kennesaw, paving the path from autumn to winter. This transition between seasons brings about a straightforward reduction in temperature compared to October. More specific changes include diminished sunshine hours and daylight hours. Weather in November »

Weather in December

As the last page on the calendar, December brings the winter season in its full swing to Kennesaw. A drop in temperature from November marks the month’s weather, along with a significant increase in the cloud cover. The city experiences the least amount of daily sunshine, indicative of the winter's shorter days. 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 Kennesaw?

January stands out as Kennesaw's coldest month, with an average high-temperature of 49.1°F (9.5°C) and a low-temperature of 33.6°F (0.9°C).

How much does it rain in Kennesaw?

In Kennesaw, Georgia, during the entire year, the rain falls for 186.9 days and collects up to 45.59" (1158mm) of precipitation.

When does it snow in Kennesaw?

Months with snowfall in Kennesaw are January through March, November and December.

What is the snowiest month in Kennesaw?

January is the month with the most snowfall. Snow falls for 1.6 days and accumulates 0.98" (25mm) of snow.

How much does it snow in Kennesaw?

In Kennesaw, Georgia, during the entire year, snow falls for 5.3 days and aggregates up to 2.83" (72mm) of snow.

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

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Kennesaw.

When is Daylight Saving Time (DST) in Kennesaw?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Kennesaw, 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 Kennesaw?

April through October are months without snowfall in Kennesaw, Georgia.

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

May through August, with an average maximum UV index of 6, are months with the highest UV index in Kennesaw.

When are the longest days in Kennesaw?

June has the longest days of the year, with an average of 14h and 24min of daylight.

What is the month with the most sunshine in Kennesaw?

June and July, with an average of 10.4h of sunshine, are months with the most sunshine in Kennesaw.

What time of the year is the hottest in Kennesaw?

In Kennesaw, Georgia, the average temperatures in July are the highest, with a peak at 90.1°F (32.3°C) and a low of 70.2°F (21.2°C).

What is the least humid month in Kennesaw?

The months with the lowest humidity in Kennesaw are July and August, with an average relative humidity of 70%.

What is the rainiest month in Kennesaw?

August is the month with the most rainfall in Kennesaw. Rain falls for 20.2 days and accumulates 5.47" (139mm) of precipitation.

What is the driest month in Kennesaw?

The month with the least rainfall is October, when the rain falls for 10.7 days and typically collects 2.44" (62mm) of precipitation.

What is the most humid month in Kennesaw?

December is the most humid month, with an average relative humidity of 78%.

What is the month with the shortest days in Kennesaw?

The month with the shortest days is December, with an average of 9h and 54min of daylight.

What is the month with the least sunshine in Kennesaw?

December has the least sunshine of the year in Kennesaw, Georgia, with an average of 5h of sunshine.

Average temperature
Kennesaw, GA

Average temperature - Kennesaw, GA

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (49.1°F).

The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (33.6°F).

Average pressure
Kennesaw, GA

Average pressure - Kennesaw, GA

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed
Kennesaw, GA

Average wind speed - Kennesaw, GA

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity
Kennesaw, GA

Average humidity - Kennesaw, GA

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are July and August (70%).

Average rainfall
Kennesaw, GA

Average rainfall - Kennesaw, GA

The wettest month (with the highest rainfall) is August (5.47").
The driest month (with the least rainfall) is October (2.44").

Average rainfall days
Kennesaw, GA

Average rainfall days - Kennesaw, GA

The month with the highest number of rainy days is July (21.8 days).
The month with the least rainy days is November (10.2 days).

Average snowfall
Kennesaw, GA

Average snowfall - Kennesaw, GA

The month with the highest snowfall is January (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days
Kennesaw, GA

Average snowfall days - Kennesaw, GA

The month with the highest number of snowfall days is January (1.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Kennesaw, GA

Average daylight / Average sunshine - Kennesaw, GA

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days
Kennesaw, GA

Average sunshine days - Kennesaw, GA

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is July (8.1 days).

Average UV index
Kennesaw, GA

Average UV index - Kennesaw, GA

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average visibility
Kennesaw, GA

Average visibility - Kennesaw, GA

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).

Kennesaw, Georgia, USA

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