Alpharetta Weather in March
Average highs run from 59°F on March 1 to 67°F on March 31, and lows from 37°F to 43°F. Normal precipitation for the month is 5.16 in over about 11 wet days.
March day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
March at a glance
- Average high
- 63°F
- Average low
- 40°F
- Precipitation
- 5.16 in
- Snowfall
- 0.3 in
- Record high
- 90°FMar 25, 2007
- Record low
- 20°FMar 1, 2002
- Chance of a freeze
- 94%
- Daylight
- 11 h 28 min to 12 h 31 min
- Cloud cover
- 62%
- Humidity
- 81%
- Dew point
- 45°F
- Wind
- 6.9 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Mar 1 | 59°F | 37°F | 79°F 2017 | 20°F 2002 | 37% | 1% |
| Mar 2 | 60°F | 37°F | 76°F 2012 | 26°F 2009 | 37% | 1% |
| Mar 3 | 60°F | 37°F | 78°F 2022 | 22°F 2009 | 37% | 1% |
| Mar 4 | 60°F | 37°F | 77°F 2026 | 22°F 2002 | 36% | 1% |
| Mar 5 | 60°F | 38°F | 80°F 2026 | 21°F 2002 | 36% | 1% |
| Mar 6 | 61°F | 38°F | 85°F 2026 | 25°F 2010 | 36% | 1% |
| Mar 7 | 61°F | 38°F | 84°F 2026 | 25°F 2015 | 36% | 1% |
| Mar 8 | 61°F | 38°F | 80°F 2000 | 29°F 2001 | 36% | 1% |
| Mar 9 | 61°F | 38°F | 80°F 2009 | 28°F 2008 | 36% | 1% |
| Mar 10 | 61°F | 39°F | 83°F 2026 | 27°F 2001 | 35% | 1% |
| Mar 11 | 62°F | 39°F | 84°F 2026 | 28°F 2002 | 35% | 1% |
| Mar 12 | 62°F | 39°F | 83°F 2006 | 26°F 2022 | 35% | 1% |
| Mar 13 | 62°F | 39°F | 80°F 2003 | 21°F 2022 | 35% | 0% |
| Mar 14 | 62°F | 40°F | 81°F 2012 | 27°F 2014 | 35% | 0% |
| Mar 15 | 63°F | 40°F | 85°F 2016 | 27°F 2017 | 35% | 0% |
| Mar 16 | 63°F | 40°F | 82°F 2012 | 25°F 2017 | 34% | 0% |
| Mar 17 | 63°F | 40°F | 84°F 2002 | 29°F 2026 | 34% | 0% |
| Mar 18 | 63°F | 40°F | 82°F 2012 | 29°F 2026 | 34% | 0% |
| Mar 19 | 64°F | 41°F | 83°F 2012 | 29°F 2023 | 34% | 0% |
| Mar 20 | 64°F | 41°F | 82°F 2012 | 25°F 2023 | 34% | 0% |
| Mar 21 | 64°F | 41°F | 85°F 2017 | 28°F 2023 | 34% | 0% |
| Mar 22 | 64°F | 41°F | 86°F 2026 | 27°F 2002 | 33% | 0% |
| Mar 23 | 65°F | 41°F | 81°F 2026 | 27°F 2002 | 33% | 0% |
| Mar 24 | 65°F | 42°F | 85°F 2007 | 33°F 2002 | 33% | 0% |
| Mar 25 | 65°F | 42°F | 90°F 2007 | 27°F 2008 | 33% | 0% |
| Mar 26 | 66°F | 42°F | 82°F 2012 | 29°F 2014 | 33% | 0% |
| Mar 27 | 66°F | 42°F | 86°F 2026 | 29°F 2006 | 33% | 0% |
| Mar 28 | 66°F | 42°F | 83°F 2007 | 29°F 2001 | 33% | 0% |
| Mar 29 | 67°F | 42°F | 83°F 2017 | 25°F 2015 | 32% | 0% |
| Mar 30 | 67°F | 43°F | 84°F 1998 | 35°F 2009 | 32% | 0% |
| Mar 31 | 67°F | 43°F | 87°F 2026 | 31°F 2003 | 32% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- March 1
- sunrise 7:06 AM, sunset 6:34 PM
- March 31
- sunrise 7:26 AM, sunset 7:57 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00092408 (Cumming 2N), public domain. Records: NOAA GHCN-Daily, station USW00053863, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.