Temperatures in January
It's cool in January in Alpharetta with an average temperature of 11°C. Temperatures this month range from a low of 7°C to a high of 16°C. At night, you can expect temperatures between -3°C and 6°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Alpharetta in January. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of January
The month of January starts in Alpharetta with cool temperatures, averaging around 12°C during the day and nights close to 2°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month.
Mid-January
By mid-January, the average daytime temperature stays the same at 12°C, with nights close to 2°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
End of January
By the end of January, the average daytime temperature in Alpharetta will be around 12°C, with nights close to 1°C. There’s a significant chance of many days with precipitation.
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Precipitation in January
In January, there is an average of 218 mm of precipitation, spread over 10 days. Of the total precipitation, about 0,6 cm falls as snow in January. The wind speed is around 4 Bft, mostly coming from the Southwest.
The average precipitation chance is 31% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in January for Alpharetta. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Alpharetta in January |
London | ||
|---|---|---|---|
 Average Temperature |
11°C | 8°C | |
 High Temp |
16°C | 9°C | |
| Low Temp |
7°C | 6°C | |
 Total Precipitation |
218 mm | 58 mm | |
| Rainy Days |
10 days | 9 days | |
 Total Snowfall |
0,6 cm | 0,8 cm | |
| Snowy Days |
1 day | 1 day | |
December
UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is January a good time to visit Alpharetta?
After some sun? Then January isn’t the best time to be in Alpharetta. There’s too much chance of rain this month.
Temperature records for Alpharetta in January
With 25°C, Alpharetta hit the highest temperature in the last 10 years in January 2022. The lowest daytime temperature in this month was -5°C in 2014. The extreme night temperatures ranged from a low of -15°C to a high of 19°C.
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Daily Temperature in January in Alpharetta
This chart shows the average daily temperatures, both day and night, for each day in January in Alpharetta, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in January in Alpharetta
The chart below shows the average daily precipitation in January for Alpharetta, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for January, you can expect around 10 days of rain in Alpharetta.
Daily Snowfall in January in Alpharetta
This chart shows the average daily snowfall in January in Alpharetta, measured in centimetres. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in January.
Daily UV Index in January in Alpharetta
This chart shows the average daily UV index in January in Alpharetta, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in January in Alpharetta Over the Years
This chart shows the average temperature in January in Alpharetta, measured in degrees Celsius, over the past years.
Total Precipitation in January in Alpharetta Over the Years
This chart shows the average precipitation in January in Alpharetta, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Snowfall in January in Alpharetta per year
This chart shows the average snowfall in January in Alpharetta, measured in centimetres, over the past years.
Daily climate in January for Alpharetta
Click on a specific day in January for detailed info on the typical weather on that day in Alpharetta. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in January in Alpharetta
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Average Weather in Alpharetta by Month
Click on a month below to see detailed weather info for Alpharetta. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Alpharetta for all months at once
