Atlanta weather in March
In March, Atlanta has daytime highs averaging 17 °C, nights around 6.7 °C, with 10 wet days. Figures are 1991–2020 climate normals.
- 17.4°C Average high
- 6.7°C Average low
- 10days Wet days
- 114mm Rainfall
- 12h Daylight
Daily temperatures through March
How March develops
Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.
| Days | Avg high | Avg low | Chance of rain |
|---|---|---|---|
| 1–10 March | 15.8 °C | 5.0 °C | 32 % |
| 11–20 March | 17.3 °C | 6.8 °C | 32 % |
| 21–31 March | 18.7 °C | 8.0 °C | 32 % |
- Average highs rise from 15.8 °C early in March to 18.7 °C by the end of it.
What to expect
| Measure | Typical March | Share of the month |
|---|---|---|
| Days above 25 °C | 1.1 of 31 | 4 % |
| Days above 30 °C | 0.03 of 31 | 0 % |
| Days below 0 °C | 3.5 of 31 | 11 % |
| Days with more than 1 mm rain | 10 of 31 | 33 % |
Conditions in March
| Measure | Average |
|---|---|
| Mean temperature | 11 °C |
| Record high (1991–2020) | 31 °C |
| Record low (1991–2020) | -10 °C |
| Relative humidity | 69 % |
| Wind speed | 19 km/h |
| Cloud cover | 57 % |
March compared with the months around it
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| January | 11.1 °C | 110 mm | 58 % |
| February | 13.4 °C | 114 mm | 60 % |
| March | 17.4 °C | 114 mm | 57 % |
| April | 21.9 °C | 93 mm | 53 % |
| May | 26.2 °C | 82 mm | 54 % |
See all twelve months for Atlanta
- March is the 8th warmest month here.
- It is the 10th driest month of the year.
- It ranks 8th for least cloud cover.
- Days last about 12 hours from sunrise to sunset.
- It rains on 10 of 31 days — 33 % of the month.
- Nights are about 11 °C cooler than the middle of the day.
- The hottest March day on record since 1991 reached 31 °C, 13 °C above the usual daytime high.
QuestionsMarch in Atlanta, answered
How warm is Atlanta in March?
Daily highs average 17 °C and nights fall to about 6.7 °C, a spread of 11 °C between afternoon and dawn. That makes March the 8th warmest month of the year here.
Does it rain much in Atlanta in March?
March averages 114 mm of rain, spread over about 10 of the 31 days — 33 % of the month. Cloud cover averages 57 % of the sky.
How long are the days in March?
Atlanta averages 12 hours between sunrise and sunset in March. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.