Climate and monthly weather forecast
Newnan, GA

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The climate of Newnan

Newnan, situated in Georgia, USA, experiences a Humid subtropical climate as based on the Köppen climate classification, denoted as Cfa. This location hence exhibits no dry season, with frequent rainfall occurring throughout the year. The prominent elements in Newnan's climate are characterized by relatively high temperatures, the salient humidity, and conspicuous rainfall events.

Fluctuations in the weather parameters vary across the annual cycle. A comparison of maximum temperatures shows values augmenting from 51.8°F (11°C) in January, peaking at 89.4°F (31.9°C) in July, and declining to 55.2°F (12.9°C) in December. Simultaneously, minimum temperatures experience a similar trend, increasing from 35.4°F (1.9°C) in January to 70°F (21.1°C) in July, before dropping to 40.5°F (4.7°C) during December.

Relative humidity remains fairly constant throughout the year, ranging between 72% and 78%. Precipitation levels, on the other hand, vary, with minimal rainfall in September 0.35" (9mm) to a peak of 1.1" (28mm) in August. The maximum duration of daylight, observed in June at 14.3 hours, reduces to 10 hours in December with the shortest daylight. The data also displays a distinct pattern in wind speeds, with wind gusts reaching 11.9mph (19.2km/h) in December and the calmest conditions prevailing in July at 4.4mph (7.1km/h).

A unique aspect of Newnan's climate is the peak rainfall in August, contrary to many other regions where summer months are typified by lower rainfall levels. Moreover, despite the general lack of a dry season, September records the lowest rainfall, making it a relatively drier month within the year.

The best time to visit Newnan

Geared towards mild temperature preference and outdoor activities, the most recommendable period to visit Newnan is between the stretch of spring and early summer, specifically from May to June. During this period, daily high temperatures oscillate between 73°F (22.8°C) and 87.4°F (30.8°C), thus guaranteeing the warmth and comfort necessary for outdoor visits. Moreover, it coincides with longer daylight hours, reaching up to 14.3 hours in June, allowing for extended hours of exploration and sightseeing.

The worst time to visit Newnan

Considering unfavorable weather conditions, the unfavorable time to visit Newnan falls between the months July and August. This period is marked by excessive heat, with temperatures soaring to highs of 89.4°F (31.9°C) to 88.3°F (31.3°C) respectively, coupled with the peak in rainfall, recording 1.02" (26mm) and 1.1" (28mm) respectively. These simultaneous conditions can create discomfort and likely affect travel plans.

Spring weather in Newnan

Spring in Newnan is typified by gradually rising temperatures, spanning from lows of 45.3°F (7.4°C) to highs of 73°F (22.8°C) between March to May. Concurrently, rainfall reduces steadily during this period, with the initial 0.59" (15mm) in March dropping to 0.59" (15mm) by May. Upholding longer daylight durations, the number escalates from 12 hours in March to 13.9 hours in May.

Summer weather in Newnan

Summer in Newnan is characterized by soaring temperatures and elevated humidity levels. June sees daily highs of around 87.4°F (30.8°C) that rise to the year's maximum of 89.4°F (31.9°C) in July, before a slight decline to 88.3°F (31.3°C) in August. Consequently, humidity increases from 75% in June to 75% in August. Despite higher rainfall levels experienced in July and August, daylight durations also increase, providing a balance.

Autumn weather in Newnan

Autumn features gradually declining temperatures with highs dropping from 83.7°F (28.7°C) in September to 61.7°F (16.5°C) in November. Similarly, the minimum temperatures see a reduction from 64.8°F (18.2°C) in September to 43.9°F (6.6°C) in November. As for the rainfall, it dips from 0.35" (9mm) in September to 0.71" (18mm) in November, complementing the cooler conditions.

Winter weather in Newan

Winters in Newnan bring about the coldest temperatures across the year, descending to as low as 35.4°F (1.9°C) in January. Daily highs also dwindle from 64°F (17.8°C) in December to 51.8°F (11°C) in January, slightly recovering to 56.8°F (13.8°C) in February. The cooler climate reflects on the lower rainfall levels of 0.71" (18mm) and 0.67" (17mm) in December and January respectively, increasing to 0.71" (18mm) in February.

Weather in January

The arrival of January in Newnan, Georgia sees the city gripped by winter's cold, setting a particularly chilly tone for the year. It distinguishes itself as the month with the lowest maximum temperature, at a meager 51.8°F (11°C). Weather in January »

Weather in February

In Newnan, February is a transitional month—hovering between the tail-end of winter and the onset of Spring. The maximum temperature slightly upturns to 56.8°F (13.8°C), hinting at the approaching warmth. Patterns of precipitation remain more or less unchanged, keeping the climate generally moist. Weather in February »

Weather in March

Newnan greets March with a weather leaning towards springtime conditions. The mercury probes higher, warmed by the lengthening daylight hours. As the layers of winter's chill peel away, the daily pressure dwindles. Rain begins to take a backseat, making way for clearer skies and pleasant temperatures. Weather in March »

Weather in April

April in Newnan, Georgia, marks a clear arrival of spring. The city bathes in the warmth of the sun, with daylight reaching its zenith at 13 hours. Despite the rise in temperatures, rainfall takes an unexpected leap to 0.94" (24mm). Weather in April »

Weather in May

May ushers in early summer in Newnan, with temperature and humidity enhancing the warmth. Though there is a steady diminishment in rainfall this month at 0.59" (15mm), it remains equally distributed throughout. The UV index takes a significant leap, urging residents to take necessary sun protection. Weather in May »

Weather in June

June in Newnan, Georgia, is characterized by the peak summer heat. The longer hours and the soaring humidity driving up the temperature to a considerable 87.4°F (30.8°C). This makes it the second-warmest month in the city. Despite the rise in temperature, the rainfalls continue to be quite evenly spread. Weather in June »

Weather in July

July is Newnan's warmest month, and the heat can be downright oppressive. The mercury defies limits and reaches its highest at a scorching 89.4°F (31.9°C). Despite the warmth, this month possesses the maximum number of rainfall days, totaling 14.1 days. Weather in July »

Weather in August

In August, Newnan experiences decreasing temperatures, signaling the close of summer. However, the rainfall increases significantly, from 1.02" (26mm) to 1.1" (28mm), making this month the rainiest period. Despite the high amount of rainfall, the number of sunshine days remains consistent. Weather in August »

Weather in September

September marks the beginning of the autumn season in Newnan, Georgia. For the most part, it's honored by a drop in temperatures. Rainfall takes a dip this month, sliding to a mere 0.35" (9mm). Consequently, the cloud cover also decreases, bringing about clearer skies. Weather in September »

Weather in October

October solidifies the onset of fall in Newnan, with noticeable shifts in weather, especially in temperature and humidity. The month registers a significant decrease in the maximum temperature, dipping to 73.8°F (23.2°C). The UV index scales back compared to September, making way for cooler and less harsh sunlight. Weather in October »

Weather in November

November in Newnan, Georgia, is characterized by a further drop in temperature, leaning towards winterlike conditions. The city's pressure framework begins to strengthen, evidenced by an increase to 30.15" (766mm) of mercury. Comparatively more cloudy days can be expected, signaling the onset of winters. Weather in November »

Weather in December

December brings Newnan to a full circle, delivering a blend of late-year chill, dampness, and darkening skies. As winter sets in, the maximum temperature descends beneath 56°F (13.3°C); though not as cold as January, it remains chilly. Weather in December »
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Frequently asked questions

What time of the year is the coldest in Newnan?

January, with average temperatures reaching a high of 51.8°F (11°C) and a low of 35.4°F (1.9°C), is the coldest month.

How many days does it rain in Newnan?

Throughout the year, there are 109.8 rainfall days, and 8.82" (224mm) of precipitation is accumulated.

When does it snow in Newnan?

January and March are months with snowfall in Newnan, Georgia.

When does it snow the most in Newnan?

The months with the most snowfall in Newnan are January and March, with an average 0.04" (1mm) of accumulated snow.

How much does it snow in Newnan?

In Newnan, during the entire year, snow falls for 1.4 days and aggregates up to 0.08" (2mm) of snow.

What is the month with the lowest UV index in Newnan?

The months with the lowest UV index in Newnan, Georgia, are January, February, November and December, with an average maximum UV index of 3.

When it does not snow in Newnan?

February, April through December are months without snowfall.

When is Daylight Saving Time (DST) in Newnan?

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 are the longest days in Newnan?

With an average of 14h and 18min of daylight, June has the longest days of the year in Newnan.

When is the highest UV index in Newnan?

With an average maximum UV index of 7, June is the month with the highest UV index.

What part of the year is the hottest in Newnan?

In Newnan, the peak temperatures are generally noted in July, averaging a high of 89.4°F (31.9°C) and a low of 70°F (21.1°C).

What month has the most sunshine in Newnan?

With an average of 10.6h of sunshine, July has the most sunshine of the year in Newnan, Georgia.

What is the wettest month in Newnan?

August is the month with the most rainfall. Rain falls for 13.4 days and accumulates 1.1" (28mm) of precipitation.

What is the driest month in Newnan?

September is the month with the least rainfall in Newnan. Rain falls for 8.4 days and accumulates 0.35" (9mm) of precipitation.

What are the least humid months in Newnan?

October and November, with an average relative humidity of 72%, are the least humid months.

What is the most humid month in Newnan?

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

What is the month with the shortest days in Newnan?

The month with the shortest days in Newnan, Georgia, is December, with an average of 10h and 0min of daylight.

What is the month with the least sunshine in Newnan?

December has the least sunshine of the year in Newnan, with an average of 5.1h of sunshine.

Average pressure
Newnan, GA

Average pressure - Newnan, GA

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed
Newnan, GA

Average wind speed - Newnan, GA

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity
Newnan, GA

Average humidity - Newnan, GA

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are October and November (72%).

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Average rainfall
Newnan, GA

Average rainfall - Newnan, GA

The wettest month (with the highest rainfall) is August (1.1").
The driest month (with the least rainfall) is September (0.35").

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Average rainfall days
Newnan, GA

Average rainfall days - Newnan, GA

The month with the highest number of rainy days is July (14.1 days).
The month with the least rainy days is October (5.2 days).

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Average snowfall
Newnan, GA

Average snowfall - Newnan, GA

The months with the highest snowfall are January and March (0.04").
The months with the least snowfall are February, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days
Newnan, GA

Average snowfall days - Newnan, GA

The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight / Average sunshine
Newnan, GA

Average daylight / Average sunshine - Newnan, GA

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days
Newnan, GA

Average sunshine days - Newnan, GA

The month with the most sunshine days is October (24.3 days).
The month with the least sunshine days is July (12.3 days).

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Average visibility
Newnan, GA

Average visibility - Newnan, GA

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

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Newnan, Georgia, USA

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