March is one of the cooler months of the year in Newnan, with average highs near 17.9°C and lows around 5.4°C (mean 11.6°C). It is a relatively wet time of year, averaging 125 mm of rainfall and 80% relative humidity across the period.
March is one of the cooler months of the year in Newnan. Across 45 years of records, the warmest March in Newnan was 2012 — when the month averaged 16.5°C — while the coldest was 2013 at 8.1°C. Typical March days reach 17.9°C with nights near 5.4°C. The long-term trend is warming, about 0.5°C per decade.
March is a relatively wet time of year in Newnan, averaging 125 mm of rainfall. The wettest March on record was 2001 with 251 mm, while the driest was 2004 at 32 mm.
Relative humidity in Newnan during March averages 80%. The most humid March was 2020 at 87%, and the least humid was 2025 at 76%.
March receives about 4.4 kWh/m²/day of solar energy in Newnan. The sunniest Marchs were 1986 and 2004 at 5.1 kWh/m²/day, and the cloudiest was 2020 at 3.6.
Average wind speed in Newnan during March is 0.1 m/s. The windiest Marchs were 2023, 2024 and 2025, among others at 0.1 m/s, while the calmest were 1995, 2013 and 2018, among others at 0 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.9°C | 11.0°C | 12.0°C | 11.7°C | 13.3°C | +2.4°C |
| Avg High | 17.2°C | 17.1°C | 18.3°C | 17.7°C | 19.7°C | +2.5°C |
| Avg Low | 4.7°C | 4.8°C | 5.6°C | 5.7°C | 6.9°C | +2.2°C |
| Avg Rain | 106 mm | 146 mm | 127 mm | 110 mm | 143 mm | +36 mm |
March temperatures in Newnan have risen by about 2.2°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -10.6°C (1993) to a record high of 30.8°C (2007).
Rainfall in March is a relatively wet time of year, averaging 125 mm, with a wettest year of 251 mm.
A quieter season to visit Newnan
If your dates are flexible, the more temperate months of September and May tend to be the most comfortable for visiting Newnan. That said, March — with days averaging 17.9°C and nights around 5.4°C (mean 11.6°C) and higher rainfall (125 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 19.7°C | 12.7°C | 5.7°C | 25.5°C | -0.8°C | 84 mm | 76% | 0.1 m/s | 4.9 |
| 2024 | 19.4°C | 13.2°C | 7.0°C | 25.2°C | -3.2°C | 177 mm | 81% | 0.1 m/s | 4.3 |
| 2023 | 19.1°C | 12.5°C | 5.9°C | 25.8°C | -5.6°C | 164 mm | 79% | 0.1 m/s | 4.7 |
| 2022 | 19.5°C | 12.5°C | 5.6°C | 24.5°C | -6.8°C | 148 mm | 78% | 0.1 m/s | 4.9 |
| 2021 | 19.6°C | 13.4°C | 7.3°C | 26.8°C | -1.4°C | 126 mm | 81% | 0.1 m/s | 4 |
| 2020 | 20.7°C | 15.3°C | 10.0°C | 27.6°C | -1.3°C | 158 mm | 87% | 0.1 m/s | 3.6 |
| 2019 | 17.0°C | 11.0°C | 4.9°C | 22.4°C | -5.2°C | 68 mm | 79% | 0.1 m/s | 4.6 |
| 2018 | 16.8°C | 10.6°C | 4.4°C | 23.6°C | -2.8°C | 118 mm | 78% | 0 m/s | 4.3 |
| 2017 | 18.4°C | 12.2°C | 6.0°C | 27.1°C | -5.9°C | 76 mm | 77% | 0.1 m/s | 4.8 |
| 2016 | 19.8°C | 13.8°C | 7.8°C | 26.4°C | -0.6°C | 94 mm | 82% | 0.1 m/s | 4.7 |
| 2015 | 19.2°C | 13.1°C | 7.0°C | 24.6°C | -5.3°C | 85 mm | 83% | 0.1 m/s | 3.8 |
| 2014 | 16.5°C | 9.9°C | 3.2°C | 25.5°C | -4.9°C | 109 mm | 80% | 0.1 m/s | 4.5 |
| 2013 ❄️ | 14.2°C | 8.1°C | 2.1°C | 20.6°C | -3.9°C | 114 mm | 79% | 0 m/s | 4.5 |
| 2012 🔥 | 22.0°C | 16.5°C | 11.0°C | 27.5°C | -0.9°C | 113 mm | 83% | 0.1 m/s | 4.6 |
| 2011 | 18.5°C | 12.6°C | 6.7°C | 26.9°C | 0.2°C | 185 mm | 82% | 0.1 m/s | 4.1 |
| 2010 | 14.7°C | 9.1°C | 3.4°C | 22.9°C | -4.3°C | 140 mm | 84% | 0.1 m/s | 4 |
| 2009 | 18.3°C | 12.3°C | 6.3°C | 25.3°C | -7.0°C | 179 mm | 83% | 0.1 m/s | 4 |
| 2008 | 18.0°C | 11.1°C | 4.2°C | 23.1°C | -3.9°C | 113 mm | 79% | 0.1 m/s | 4.7 |
| 2007 | 21.0°C | 14.3°C | 7.6°C | 30.8°C | -4.3°C | 50 mm | 76% | 0.1 m/s | 4.9 |
| 2006 | 17.9°C | 11.6°C | 5.2°C | 25.8°C | -3.0°C | 76 mm | 77% | 0.1 m/s | 4.8 |
| 2005 | 16.2°C | 10.2°C | 4.2°C | 26.4°C | -5.2°C | 178 mm | 80% | 0.1 m/s | 4.3 |
| 2004 | 19.7°C | 13.3°C | 6.8°C | 26.9°C | -3.0°C | 32 mm | 76% | 0.1 m/s | 5.1 |
| 2003 | 18.5°C | 13.0°C | 7.5°C | 23.6°C | -2.8°C | 143 mm | 85% | 0.1 m/s | 3.7 |
| 2002 | 18.7°C | 11.8°C | 4.9°C | 25.8°C | -5.4°C | 146 mm | 79% | 0.1 m/s | 4.5 |
| 2001 🌧️ | 14.4°C | 8.9°C | 3.4°C | 20.6°C | -3.3°C | 251 mm | 81% | 0.1 m/s | 4.2 |
| 2000 | 20.5°C | 13.3°C | 6.2°C | 25.3°C | -2.7°C | 102 mm | 78% | 0.1 m/s | 4.6 |
| 1999 | 16.3°C | 9.5°C | 2.7°C | 22.3°C | -4.1°C | 114 mm | 77% | 0.1 m/s | 4.7 |
| 1998 | 15.6°C | 10.1°C | 4.6°C | 26.0°C | -5.7°C | 157 mm | 83% | 0.1 m/s | 4.2 |
| 1997 | 20.4°C | 13.9°C | 7.4°C | 25.0°C | -2.1°C | 65 mm | 81% | 0.1 m/s | 4.8 |
| 1996 | 14.2°C | 8.4°C | 2.6°C | 21.5°C | -8.3°C | 207 mm | 80% | 0.1 m/s | 4.1 |
| 1995 | 18.8°C | 12.7°C | 6.6°C | 26.7°C | -3.9°C | 85 mm | 82% | 0 m/s | 4.2 |
| 1994 | 18.1°C | 11.4°C | 4.8°C | 25.4°C | -2.8°C | 175 mm | 80% | 0.1 m/s | 4.6 |
| 1993 | 14.3°C | 8.8°C | 3.3°C | 26.5°C | -10.6°C | 142 mm | 84% | 0.1 m/s | 3.9 |
| 1992 | 17.1°C | 10.5°C | 3.9°C | 23.9°C | -4.8°C | 114 mm | 79% | 0.1 m/s | 4.6 |
| 1991 | 17.8°C | 11.7°C | 5.7°C | 25.2°C | -0.7°C | 167 mm | 82% | 0 m/s | 4.2 |
| 1990 | 18.5°C | 12.6°C | 6.8°C | 25.3°C | -3.6°C | 231 mm | 84% | 0.1 m/s | 4.3 |
| 1989 | 18.5°C | 12.5°C | 6.5°C | 25.4°C | -2.3°C | 137 mm | 83% | 0.1 m/s | 3.8 |
| 1988 | 17.1°C | 10.5°C | 3.9°C | 24.5°C | -6.0°C | 64 mm | 80% | 0.1 m/s | 4.5 |
| 1987 | 16.6°C | 10.8°C | 5.1°C | 24.5°C | -2.2°C | 103 mm | 83% | 0.1 m/s | 4.3 |
| 1986 | 18.1°C | 11.1°C | 4.0°C | 26.7°C | -5.9°C | 99 mm | 76% | 0.1 m/s | 5.1 |
| 1985 | 18.0°C | 11.7°C | 5.4°C | 25.6°C | -3.6°C | 49 mm | 80% | 0 m/s | 4.5 |
| 1984 | 16.8°C | 10.3°C | 3.8°C | 24.8°C | -5.3°C | 124 mm | 82% | 0 m/s | 4.5 |
| 1983 | 15.4°C | 9.8°C | 4.2°C | 23.1°C | -3.5°C | 177 mm | 83% | 0.1 m/s | — |
| 1982 | 18.4°C | 12.6°C | 6.8°C | 28.8°C | -4.8°C | 69 mm | 84% | 0 m/s | — |
| 1981 | 15.8°C | 9.0°C | 2.2°C | 24.1°C | -3.8°C | 134 mm | 76% | 0.1 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 17.9°C with lows near 5.4°C (mean 11.6°C), based on 45 years of NASA POWER data.
March averages 125 mm of rainfall in Newnan, a relatively wet time of year. The wettest on record was 251 mm in 2001.
The hottest March reached 30.8°C in 2007. The coldest dipped to -10.6°C in 1993.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 2.2°C. Daytime highs moved from 16.9°C to 19.5°C and overnight lows from 4.5°C to 6.3°C over the same span.
March is one of the cooler months of the year in Newnan and a relatively wet time of year, so plan for around 17.9°C daytime highs and 5.4°C at night.
Not quite — March is the 5th coolest month in Newnan, averaging 11.6°C.
For March in Newnan, pack warm layers and a jacket for chilly mornings, with typical highs of 17.9°C and lows of 5.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in March averages 80% — quite humid.
Average wind speed in March is 0.1 m/s. The windiest March on record averaged 0.1 m/s (1981).
The wettest March on record was 2001 with 251 mm. On average, March sees 125 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Newnan behaves each March, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for March specifically, along with year-by-year records and how the month has changed over the decades.
