Climate and monthly weather forecastNewnan, GA
Climate and monthly weather forecast
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 »Updated: Jun 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January stands out as Newnan's coldest month, with temperatures ranging between an average high of 51.8°F (11°C) and a low of 35.4°F (1.9°C).
Throughout the year, there are 109.8 rainfall days, and 8.82" (224mm) of precipitation is accumulated.
January and March are months with snowfall.
The months with the most snowfall are January and March, with an average 0.04" (1mm) of accumulated snow.
Throughout the year, there are 1.4 snowfall days, and 0.08" (2mm) of snow is accumulated.
The months with the lowest UV index in Newnan are January, February, November and December, with an average maximum UV index of 3.
In Newnan, snow does not fall in February, April through December.
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.
With an average of 14h and 18min of daylight, June has the longest days of the year.
With an average maximum UV index of 7, June is the month with the highest UV index.
With average high and low temperatures of 89.4°F (31.9°C) and 70°F (21.1°C) respectively, July is Newnan's warmest month.
July has the most sunshine of the year, with an average of 10.6h of sunshine.
The month with the most rainfall is August, when the rain falls for 13.4 days and typically aggregates up to 1.1" (28mm) of precipitation.
The month with the least rainfall is September, when the rain falls for 8.4 days and typically collects 0.35" (9mm) of precipitation.
October and November, with an average relative humidity of 72%, are the least humid months.
December is the most humid month, with an average relative humidity of 78%.
With an average of 10h and 0min of daylight, December has the shortest days of the year.
December has the least sunshine of the year, with an average of 5.1h of sunshine.
Average temperature
Newnan, GA
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (51.8°F).
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).
Average pressure
Newnan, GA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.1"Hg - Average pressure in April:
30.02"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.98"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.15"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed
Newnan, GA
- Average wind speed in January:
7.8mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.3mph - Average wind speed in April:
7mph - Average wind speed in May:
5.7mph - Average wind speed in June:
4.8mph
- Average wind speed in July:
4.4mph - Average wind speed in August:
4.3mph - Average wind speed in September:
4.8mph - Average wind speed in October:
6.1mph - Average wind speed in November:
6.6mph - Average wind speed in December:
7.3mph
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).
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%).
Average rainfall
Newnan, GA
- Average rainfall in January:
0.67" - Average rainfall in February:
0.71" - Average rainfall in March:
0.59" - Average rainfall in April:
0.94" - Average rainfall in May:
0.59" - Average rainfall in June:
0.83"
- Average rainfall in July:
1.02" - Average rainfall in August:
1.1" - Average rainfall in September:
0.35" - Average rainfall in October:
0.55" - Average rainfall in November:
0.71" - Average rainfall in December:
0.75"
The wettest month (with the highest rainfall) is August (1.1").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days
Newnan, GA
- Average rainfall days in January:
7.4 days - Average rainfall days in February:
8.1 days - Average rainfall days in March:
9.9 days - Average rainfall days in April:
8.5 days - Average rainfall days in May:
10.1 days - Average rainfall days in June:
10.5 days
- Average rainfall days in July:
14.1 days - Average rainfall days in August:
13.4 days - Average rainfall days in September:
8.4 days - Average rainfall days in October:
5.2 days - Average rainfall days in November:
6.1 days - Average rainfall days in December:
8.1 days
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).
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").
Average snowfall days
Newnan, GA
- Average snowfall days in January:
0.4 days - Average snowfall days in February:
0.6 days - Average snowfall days in March:
0.3 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.1 days
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).
Average daylight / Average sunshine
Newnan, GA
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 18min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
10h and 0min
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).
- Average sunshine in January:
6h and 0min - Average sunshine in February:
6h and 42min - Average sunshine in March:
7h and 0min - Average sunshine in April:
8h and 30min - Average sunshine in May:
10h and 0min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
9h and 12min - Average sunshine in September:
8h and 42min - Average sunshine in October:
7h and 18min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 6min
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).
Average sunshine days
Newnan, GA
- Average sunshine days in January:
21.8 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
19.3 days - Average sunshine days in April:
19.6 days - Average sunshine days in May:
18.1 days - Average sunshine days in June:
14.6 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
12.6 days - Average sunshine days in September:
18.7 days - Average sunshine days in October:
24.3 days - Average sunshine days in November:
22.7 days - Average sunshine days in December:
20.6 days
The month with the most sunshine days is October (24.3 days).
The month with the least sunshine days is July (12.3 days).
Average UV index
Newnan, GA
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover
Newnan, GA
The month with the most cloud cover is December (Cloud cover 46).
The months with the least cloud cover are June, September and October (Cloud cover 31).
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).
