Alpharetta, GA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Alpharetta now
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Alpharetta weather by the hour
Alpharetta weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Alpharetta.
This week in Alpharetta
Sunrise, sunset and moon in Alpharetta
What is the weather usually like in Alpharetta?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 89°F average high
- Januarycoldest month · 31°F average low
- 56.4 inprecipitation per year · 1,432 mm
- 0.6 insnowfall per year · 2 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Alpharetta: April–May and September–October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station CUMMING 2N, GA US (USC00092408), adjusted for the elevation of Alpharetta.
Alpharetta weather month by month
Sunrise and sunset in Alpharetta through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:40 AM | 5:52 PM | 10 h 11 min |
| February | 7:20 AM | 6:22 PM | 11 h 2 min |
| March | 7:45 AM | 7:46 PM | 12 h 0 min |
| April | 7:04 AM | 8:09 PM | 13 h 5 min |
| May | 6:33 AM | 8:33 PM | 13 h 59 min |
| June | 6:23 AM | 8:51 PM | 14 h 27 min |
| July | 6:35 AM | 8:50 PM | 14 h 14 min |
| August | 6:57 AM | 8:25 PM | 13 h 28 min |
| September | 7:19 AM | 7:45 PM | 12 h 25 min |
| October | 7:41 AM | 7:04 PM | 11 h 23 min |
| November | 7:08 AM | 5:34 PM | 10 h 26 min |
| December | 7:33 AM | 5:30 PM | 9 h 56 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Alpharetta?
Alpharetta has a humid subtropical climate. The warmest month is July, with an average high of 89°F (32°C), and the coldest is January, with average lows of 31°F (-1°C).
It gets about 56.4 inches (1,432 mm) of precipitation a year. The wettest month is January and the driest is October.
The best time to visit Alpharetta is April–May and September–October. At 1,135 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Alpharetta
Weather in towns near Alpharetta
Questions about the weather in Alpharetta
What is the hottest month in Alpharetta?
July, with an average high of 89°F (32°C).
What is the coldest month in Alpharetta?
January, with an average low of 31°F (-1°C).
How much does it rain in Alpharetta?
About 56.4 inches (1,432 mm) a year; the wettest month is January.
Does it snow in Alpharetta?
Rarely: less than an inch in an average year.
When is the best time to visit Alpharetta?
April–May and September–October, when temperatures are most pleasant and rainy days are fewer.
What climate does Alpharetta have?
Humid subtropical (Köppen Cfa).
What is the weather like in Alpharetta in November?
Highs average 63°F and lows 39°F, with about 4.4 inches of precipitation.
What time is sunrise in Alpharetta?
Around 7:08 AM in mid-November, and sunset around 5:34 PM. Today’s exact times are shown above.
Where does this Alpharetta weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Alpharetta.
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