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Newnan (GA) Weather and Climate: A Comprehensive Guide

The climate in Newnan is marked by big temperature swings throughout the year. Temperatures range from very warm during the warmest months to mild in the cooler months. It also has a relatively rain/snowy climate with high levels of precipitation. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

In Newnan, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 32°C in July to a moderate 12°C in January.

Nighttime temperatures can drop, with average lows reaching -1°C in January. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Newnan experiences significant rain/snowfall throughout the year, averaging 1276 mm of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, December, sees around 162 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, September, still receives a respectable 79 mm of rainfall.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

In Newnan, summer days are longer and more sunny, with daily sunshine hours peaking at 9.6 hours in May. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 5.5 hours per average day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Atlanta, the United States of America (55 KM, 34 Miles).

Daily hours of sunshine

Data from: Atlanta, the United States of America (55 KM, 34 Miles).

Forecast for Newnan (GA)

Sun   Dec 22
10°C | -4°C
E 3 m/s
clear and no rain

clear and no rain

Mon   Dec 23
11°C | -2°C
E 3 m/s
clear and no rain

clear and no rain

Tue   Dec 24
15°C | 0°C
NE 1 m/s
almost clear and no rain

almost clear and no rain

The best time of year to visit Newnan in the United States of America

During the months of April and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Newnan?
    July has an average maximum temperature of 32°C and is the warmest month of the year.
  • Which is the coldest month in Newnan?
    The coldest month is January with an average maximum temperature of 12°C.
  • Which is the wettest month in Newnan?
    December tops the wettest month list with 162 mm of rainfall.
  • Which is the driest month in Newnan?
    September is the driest month with 79 mm of precipitation.
  • Which is the sunniest month in Newnan?
    May is the sunniest month with an average of 288 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.