Climate of Alpharetta

Alpharetta has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Alpharetta is 21° degrees and there is about 503 mm of rain in a year. It is dry for 189 days a year with an average humidity of 74% and an UV-index of 4.

Climate averages for the whole year

Day: the average daily temperature during the day is between 9°C and 32°C
Night:the average nighttime temperature is between 1°C and 21°C
Rain: it rains 149 days and there is a total of approximately 503 mm rainfall
Snow: it snows an average of 3 days per year
Sun hours: throughout the year there are 2950 sun hours

Maximum temperature:	between 9°C and 32°C
Warmest month:	32°C in July
Coldest month:	9°C in January
Night temperature:	between 1°C and 21°C
Dry days:	213 days
Days with rain:	149 days
Days with snow:	3 days
Total rain sum:	503 mm
Hours of sunshine:	2950 hours

Climate of Alpharetta
Temperature graph
Precipitation graph
Climate chart of Alpharetta
The best travel time for Alpharetta
Climate of Alpharetta by month
Experiences with the weather of Alpharetta

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Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Alpharetta.

Precipitation graph

This graph shows the average amount of rainfall per month for Alpharetta.

Climate table of Alpharetta

In this climate table you can see at a glance what the average weather per month is for Alpharetta. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Alpharetta might be like in a given month.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Day temp. (°C)	9	12	16	22	26	31	32	31	28	22	16	12
Night temp. (°C)	1	3	6	11	15	19	21	20	18	11	6	4
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Precipitation (mm)	33	35	40	32	54	43	54	56	41	25	42	48
Days with rain	10	11	13	12	15	15	17	16	12	8	9	11
Days with snow	1	1	-	-	-	-	-	-	-	-	-	1
Dry days	20	16	18	18	16	15	14	15	18	23	21	19
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sun hours per day	6	7	7	9	10	11	11	10	9	7	6	5
Wind force (Bft)	3	3	3	2	2	2	2	2	2	2	2	2
UV-index	2	3	4	5	6	6	6	6	5	4	3	2

Best time to visit Alpharetta

The best time to visit Alpharetta in the state of Georgia is from April through October. In this period you have a hot temperature and little precipitation. The highest average temperature in Alpharetta is 32°C in July and the lowest is 9°C in January.

Climate of Alpharetta by month

What is the average climate in a given month for Alpharetta? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

January