Climate and monthly weather forecastSmyrna, GA
Climate and monthly weather forecast
The climate of Smyrna
Smyrna, Georgia, USA, sits within the classification of a humid subtropical climate, according to the Köppen climate classification. This indicates a climate dominated by humidity, warmth, and consistent rain throughout the year, with no dry season.Overall, Smyrna's weather is marked by an extensive range of temperatures, spanning from a low of 34.2°F (1.2°C) in January to a high of 90.5°F (32.5°C) in July. The fluctuation is due to seasonal changes handled by the location's latitude and proximity to significant bodies of water. Humidity remains relatively stable throughout the year, hovering mildly high percentage with the lowest being 68% in August and reaching a peak of 78% in December.
Rainfall in Smyrna is fairly steady with monthly averages ranging from 2.24" (57mm) in October to 4.88" (124mm) in August. The city experiences the most rain during the summer months, particularly in July and August, indicative of the region's humid subtropical climate. On the contrary, the town receives less rainfall in fall, specifically in September and October.
In relation to sunshine, the longest hours occur from May through July, with the longest day being in June at 14.4 hours. The shortest days are from November to January, with the shortest day in December at 9.9 hours. Snowfall is not a regular occurrence but does happen on occasion, primarily in January with an average snowfall of 0.98" (25mm).
The best time to visit Smyrna
Considering humidity, temperature, and rainfall, the most ideal time to visit Smyrna would be from April to June. During these spring months, the temperatures range from a pleasant 62.6°F (17°C) to 87.4°F (30.8°C). Humidity is mildly lower, and there's less rainfall compared to the summer months. Furthermore, the daylight hours are increasing, providing a longer period to explore the town's attractions.The worst time to visit Smyrna
By contrast, the less captivating time to visit Smyrna would be the summer months from July to August. The temperatures reach their peak, climbing up to 90.5°F (32.5°C) in July. Although the days are longer, the increased humidity and high rainfall can make outdoor activities challenging.Spring weather in Smyrna
Spring in Smyrna is characterized by a steady rise in temperatures, with March beginning at a high of 62.6°F (17°C) and climbing to 87.4°F (30.8°C) by June. Humidity remains relatively constant, and daylight hours significantly increase, offering more time for outdoor events and activities. Rainfall during this period is moderate, with slightly higher downpours in May of 3.94" (100mm).Summer weather in Smyrna
The weather in Smyrna during the summer months of July to September is typically hot and humid. July records the highest temperature of 90.5°F (32.5°C), but August isn't far behind at 89.4°F (31.9°C). These hot temperatures align with the highest rainfall measurements, peaking in August with a significant 4.88" (124mm). Although there's an abundance of daylight, the high temperatures and ample rainfall can make the climate uncomfortable for some.Autumn weather in Smyrna
The approach of autumn brings a decrease in temperatures, dropping from 84°F (28.9°C) in September to a more comfortable 61°F (16.1°C) by November. Rainfall sees a significant drop during these months as well, going down to just 2.24" (57mm) in October. The days begin to shorten, but visitors can still enjoy relatively pleasant weather.Winter weather in Smyrna
During the winter months, Smyrna sees a decrease in temperatures reaching a low of 34.2°F (1.2°C) in January. Humidity peaks in December at 78%, and snow makes its rare appearance, primarily in January with 0.98" (25mm). Although the days are shorter, with December having the shortest day, the amount of sunshine remains constant at 5 hours per day, providing a reasonable amount of daylight for activities.Weather in January
Smyrna's weather in January begins the new year with an unmistakable winter chill, coupled with average snowfall of 0.98" (25mm). The cold can often be intense, requiring heavier clothing and extra precautions. When compared to the milder weather of February, the weather is considerably cooler and more unpredictable. Weather in January »Weather in February
Shifting into February, Smyrna's weather continues its winter trend. This month experiences a subtle temperature rise compared to January, signaling the gradual retreat of winter. Tentatively teasing the arrival of spring, February receives less snowfall than its predecessor with rainfall inches standing at 3.58" (91mm). Weather in February »Weather in March
March greets Smyrna with a tangible warming trend, the mercury levels rise, and spring begins to settle in. Notably, snowfall disappears entirely in this period, indicating that winter is now a distant memory. Comparatively, this month sees an increase in rainfall and corresponding humidity, typical characteristics of March in Smyrna. Weather in March »Weather in April
The typically vibrant weather of April in Smyrna presents an enticing environment, with significant temperature rises to 72.5°F (22.5°C) high and 53.1°F (11.7°C) low. The city, now fully immersed in spring, shows clear signs of shifting seasons as the landscape transforms. Weather in April »Weather in May
As Smyrna transitions into May, the weather takes a warm turn, ushering in the early stages of summer. Pleasantly warm temperatures dominate, and the daylight hours increase progressively, indicative of the seasonal transition. With an increase in precipitation to 3.94" (100mm), May tends to be one of the wetter months. Weather in May »Weather in June
June in Smyrna signifies the beginning of summer as temperatures soar, and the city vibrates with outdoor activities. Without a trace of spring's capricious weather, June promises consistent warmth and elevated humidity levels. Notably, rain showers become less frequent, and the city enjoys longer periods of consistent, warm weather. Weather in June »Weather in July
July, the pinnacle of summer in Smyrna, displays remarkable warmth with average high temperatures peaking at an impressive 90.5°F (32.5°C), the year's highest. Consistent weather becomes a common theme, characterized by hot, humid, and long days. Weather in July »Weather in August
Drawing close to summer's end, Smyrna's August weather offers an abundance of warm, sunny days. The temperature begins to drop slightly, hinting at the approaching fall season. There's still a strong summer hold, though, with occasional bouts of high humidity. Weather in August »Weather in September
Smyrna's weather in September sees the gradual retreat of summer, replaced by the cooler and milder conditions of early fall. Residents enjoy a noticeable dip in humidity and temperature compared to the intense heat and humidity of August. Weather in September »Weather in October
October sweeps in with milder weather in Smyrna, as the city becomes fully immersed in the spirit of fall. Comparatively cooler temperatures than September bring a refreshing change, paving the way for a cozy sweater-weather season. Weather in October »Weather in November
November's weather in Smyrna feels considerably cooler, marking the official transition from fall to the outset of winter. The noticeable dip in temperature from October prompts the need for heavier clothing. However, there is a significant decline in rainfall and daylight hours, suggesting a shift towards colder and shorter days. Weather in November »Weather in December
Smyrna experiences a distinct winter chill during December, concluding the year with the lowest average temperatures of 53.6°F (12°C) high and 39°F (3.9°C) low. Snowfall reappears after a long spell of absence, hinting at a white Christmas possibility. Weather in December »Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Smyrna's January weather, marked by an average high temperature of 49.6°F (9.8°C) and an average low temperature of 34.2°F (1.2°C), is the coldest in the year.
Throughout the year, in Smyrna, there are 177.1 rainfall days, and 41.93" (1065mm) of precipitation is accumulated.
Months with snowfall in Smyrna are January through March and December.
January is the month with the most snowfall in Smyrna, Georgia. Snow falls for 1.6 days and accumulates 0.98" (25mm) of snow.
In Smyrna, Georgia, during the entire year, snow falls for 4.5 days and aggregates up to 2.6" (66mm) of snow.
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
April through November are months without snowfall in Smyrna, Georgia.
May through August, with an average maximum UV index of 6, are months with the highest UV index in Smyrna, Georgia.
June has the longest days of the year in Smyrna, Georgia, with an average of 14h and 24min of daylight.
Smyrna's warmest weather arrives in July, when temperatures average a high of 90.5°F (32.5°C) and a low of 71.4°F (21.9°C).
July has the most sunshine of the year in Smyrna, with an average of 10.6h of sunshine.
The least humid month in Smyrna, Georgia, is August, with an average relative humidity of 68%.
The month with the most rainfall in Smyrna is August, when the rain falls for 18.8 days and typically aggregates up to 4.88" (124mm) of precipitation.
The month with the least rainfall is October, when the rain falls for 10.2 days and typically collects 2.24" (57mm) of precipitation.
The most humid month is December, with an average relative humidity of 78%.
December has the shortest days of the year in Smyrna, with an average of 9h and 54min of daylight.
The month with the least sunshine in Smyrna, Georgia, is December, with an average of 5h of sunshine.
Average temperature
Smyrna, GA
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (49.6°F).
The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).
Average pressure
Smyrna, GA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.1"Hg - Average pressure in April:
30.02"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
29.99"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.15"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed
Smyrna, GA
- Average wind speed in January:
8.1mph - Average wind speed in February:
8mph - Average wind speed in March:
7.5mph - Average wind speed in April:
7.3mph - Average wind speed in May:
5.9mph - Average wind speed in June:
5.1mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5mph - Average wind speed in October:
6.2mph - Average wind speed in November:
6.8mph - Average wind speed in December:
7.5mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity
Smyrna, GA
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is August (68%).
Average rainfall
Smyrna, GA
- Average rainfall in January:
3.23" - Average rainfall in February:
3.58" - Average rainfall in March:
3.43" - Average rainfall in April:
3.43" - Average rainfall in May:
3.94" - Average rainfall in June:
3.46"
- Average rainfall in July:
4.17" - Average rainfall in August:
4.88" - Average rainfall in September:
2.76" - Average rainfall in October:
2.24" - Average rainfall in November:
3.03" - Average rainfall in December:
3.78"
The wettest month (with the highest rainfall) is August (4.88").
The driest month (with the least rainfall) is October (2.24").
Average rainfall days
Smyrna, GA
- Average rainfall days in January:
12.3 days - Average rainfall days in February:
14.6 days - Average rainfall days in March:
15.4 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
17.6 days - Average rainfall days in June:
18.3 days
- Average rainfall days in July:
19.6 days - Average rainfall days in August:
18.8 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
10.2 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
13.7 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (9.5 days).
Average snowfall
Smyrna, GA
The month with the highest snowfall is January (0.98").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days
Smyrna, GA
- Average snowfall days in January:
1.6 days - Average snowfall days in February:
1.3 days - Average snowfall days in March:
0.6 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.1 days - Average snowfall days in December:
0.8 days
The month with the highest number of snowfall days is January (1.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Smyrna, GA
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
5h and 36min - Average sunshine in February:
6h and 24min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 18min - Average sunshine in May:
9h and 42min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
9h and 18min - Average sunshine in September:
8h and 30min - Average sunshine in October:
7h and 6min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days
Smyrna, GA
- Average sunshine days in January:
16 days - Average sunshine days in February:
11.5 days - Average sunshine days in March:
13.5 days - Average sunshine days in April:
13.9 days - Average sunshine days in May:
12.1 days - Average sunshine days in June:
10.4 days
- Average sunshine days in July:
9.6 days - Average sunshine days in August:
9.9 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
20.1 days - Average sunshine days in November:
19.1 days - Average sunshine days in December:
15.7 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (9.6 days).
Average UV index
Smyrna, GA
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover
Smyrna, GA
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility
Smyrna, GA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
