Alpharetta

Stay updated on the latest weather conditions in Alpharetta. Below, you will find current data, forecasts, and helpful weather charts to ensure your stay is as comfortable as possible.

The climate in Alpharetta, USA, is characterized as humid subtropical, with four distinct seasons. This means travelers should expect a variety of weather conditions throughout the year, making the city an attractive destination at different times, depending on your weather preferences.

Summers in Alpharetta are typically hot and quite humid, with average temperatures in July and August hovering around 25-26°C, and highs often exceeding 30°C. Winters here are generally mild and cool, with an average January temperature of about 6.8°C, though nighttime temperatures can drop below freezing. Spring and autumn are comfortable transitional periods with moderate temperatures and lower humidity compared to summer.

As for precipitation, it is distributed fairly evenly throughout the year, although the total amount, according to the data provided, is modest. However, the number of days with precipitation varies: the highest number occurs during the summer months, especially in July (about 18 days), as well as in February (14 days). The fewest rainy days are usually seen in October and November. This suggests that even during the warmer months, frequent but likely light rain is possible.

The climate in Alpharetta is characterized by distinct seasonal temperature changes. The hottest month is traditionally July, with an average temperature of 26.2°C and daytime highs often reaching 30.6°C. In contrast, the coldest month is January: the average temperature at this time stays at 6.8°C, and nighttime lows can drop to an average of 2.4°C. Thus, the annual temperature cycle shows a significant range from cool winters to hot summers.

The summer period in Alpharetta, especially from June to August, brings consistently warm and sometimes hot weather. Average daytime temperatures in these months range from 29°C to 31°C, and nights also remain warm, with lows around 20°C - 22°C. Given the number of rainy days, summer weather can feel quite humid. Winter months, from December to February, are notably cooler. During the day, the thermometer usually reads between 11°C and 15°C, while at night the temperature can drop to 2°C - 6°C, creating conditions for morning frosts. Notable daily temperature fluctuations occur throughout the year: the difference between daytime highs and nighttime lows is often about 8-10°C, which is important to consider when choosing clothes for your trip.

In Alpharetta, precipitation occurs year-round, with no distinct rainy season or prolonged dry period. Monthly precipitation volume is relatively low, ranging from 3 to 6 mm, indicating a generally moderate character of moisture throughout the year.

Regarding the volume of precipitation, the wettest month is usually February, with an average of about 6 mm. March and December are also characterized by relatively high precipitation (5 mm each). Conversely, the lowest amount of precipitation—only 3 mm—falls in May, October, and November, making these the driest months in terms of total moisture volume.

As for the frequency of rain, the picture is somewhat different. The highest number of days with precipitation occurs during the summer months. The clear leader is July, when it rains an average of 18 days. June and August also feature frequent, though not always heavy, precipitation—15 rainy days each. It is important to note that despite such high frequency in the summer months, the total precipitation (for example, 4 mm in July) remains small, indicating a predominance of light or drizzling rain. The lowest number of rainy days is observed in autumn: in October and November, there are only about 8 on average.

When preparing for a trip to Alpharetta, it is important to consider the weather conditions, which can change throughout the year. A characteristic feature of the local climate is a significant number of days with precipitation each month, even if the total volume in millimeters is small. Therefore, a light raincoat or a compact umbrella will be your reliable companions almost any time of year. Comfortable walking shoes are also essential for your comfort. Layering your clothes is the key to a comfortable stay in Alpharetta, as it allows you to easily adapt to temperature changes throughout the day, especially during the transitional seasons.

In summer, from June to August, Alpharetta is warm and sunny, with average temperatures ranging from 24.5°C to 26.2°C and highs reaching 30°C. You should pack light, breathable clothing, sunscreen, a hat, and sunglasses. Despite the warm weather, don't forget the possibility of short-lived showers. Winter months, from December to February, bring cooler weather: average temperatures range from 6.8°C to 10.4°C, with lows around 2.4°C. For this period, you will need warm items: sweaters, a fleece, an insulated jacket, as well as a hat, scarf, and gloves, especially if you plan on evening walks.

Spring (March-May) and autumn (September-November) are transitional seasons with comfortable temperatures. In spring, average figures vary from 13°C to 21.2°C, and in autumn, from 23.1°C, gradually decreasing to 12°C in November. A combination of t-shirts, long-sleeved shirts, light sweaters, and a transitional jacket is perfect for these periods. Regardless of the season, don't forget comfortable shoes, as Alpharetta and its surroundings offer many interesting places for exploring on foot.