Climate and monthly weather forecastDuluth, GA
Climate and monthly weather forecast
The climate of Duluth
In accordance with the Köppen climate classification system, Duluth in Georgia, USA, falls under the Cfa category, signifying a humid subtropical climate with no dry season. Essential to this climatic zone and characterizing Duluth's climatic experience are pronounced seasonality with hot, humid summers and cool winters.Throughout the year, temperatures in Duluth shift noticeably, from winter lows of around 34°F (1.1°C) in January to summer highs reaching up to 90.7°F (32.6°C) in July. Unlike the temperatures, relative humidity levels remain relatively stable, ranging marginally from 68% in July to 77% in December.
Duluth's precipitation patterns display a similar steady trend, with rainfall amounts spreading evenly across the year. Nevertheless, certain months such as August register higher amounts of precipitation, with an average of 5.43" (138mm). The number of rainfall days is also substantial, at 21 in July and diminishing to 10.4 in November.
Unique to the climate of Duluth is its mild snowfall, with only trace snowfall recorded in January and December. Additionally, wind speeds exhibit a downward trend as the year progresses, starting from an average of 8mph (12.9km/h) in January and dipping to 4.6mph (7.4km/h) in August before climbing back up towards the end of the year.
The best time to visit Duluth
Taking into account temperature comfort, general weather conditions, and unimpaired visibility, the best period to visit Duluth tends to situate from April to June. These months register moderate to high temperatures, ranging from 72.1°F (22.3°C) to 87.8°F (31°C), ideally suited for outdoor activities. Humidity levels are slightly lower during these periods compared to the rest of the year, while visibility remains constant at 6 miles.The period between April and June also witnesses lower wind speeds, ranging from 7.3mph (11.7km/h) to 5.2mph (8.4km/h), resulting in relatively calm weather conditions. Furthermore, this interval falls outside the peak rainfall season, thus minimizing potential disruptions to itineraries due to bad weather.
The worst time to visit Duluth
The period extending from July to September constitutes a less favorable time for tourists, mainly due to high temperatures, excessive rainfall, and considerable humidity. During these months, the mercury frequently tops 83.8°F (28.8°C), while rainfall figures peak at a sizeable 5.43" (138mm) in August.Humidity levels during these months hover around 70%, and coupled with the high temperatures, could lead to discomfort for the unaccustomed. Moreover, during these months, Duluth experiences its highest wind gust speeds, potentially adding to unfavorable conditions.
Spring weather in Duluth
Duluth's spring, stretching from March to May, is characterized by an upswing in temperature, averaging between 54.5°F (12.5°C) in March to a balmy 80.4°F (26.9°C) in May. Rainfall fluctuates from 3.39" (86mm) to 4.45" (113mm) during these months, while snowfall is almost non-existent.The number of daylight hours sees a significant increase, initiating at an average of 12 hours in March and peaking at 13.9 hours by May. Correspondingly, sunshine durations experience a gradual ascension, from 6.8 hours in March to a generous 9.6 hours in May.
Summer weather in Duluth
Summer in Duluth, extending from June to August, is marked by high temperatures, prevalent humidity, and ample daylight. The mercury during this period hovers between 87.8°F (31°C) and 89.2°F (31.8°C), while humidity levels persist around the 70% mark.Advertisements of plentiful sunshine are ubiquitous during these months, with an average of between 10.4 hours in June and 9.3 hours in August. Incoming tourists would do well to equip themselves for the intense UV index of 6 that lasts the entirety of the season.
Autumn weather in Duluth
Duluth’s autumn, spanning from September to November, welcomes a mild dip in temperatures, from 83.8°F (28.8°C) in September to a cooler 61°F (16.1°C) by November. Rainfall during these months reduces considerably, settling at around 3.23" (82mm) in November.Daylight rapidly gives way to longer nights, with sunshine hours decreasing from 8.4 hours in September to 5.7 hours come November. However, the charm of Autumn is not dampened, as humidity in these months aligns with the annual trends, creating a pleasant climate for visitors.
Winter weather in Duluth
Winter in Duluth, from December to February, is marked by a significant drop in temperatures, sliding down to 34°F (1.1°C) in January. Limited to trace amounts, snowfall makes rare appearances in January and December.Equally reduced are daylight hours, which retract to an annual low of 9.9 hours in December. Sunshine is likewise scanty, hovering around 5 hours during these months. The winds of winter, however, are fairly moderated, maintaining speeds in the vicinity of 7.8mph (12.6km/h) to 8mph (12.9km/h). Despite the colder conditions, winter in Duluth excels in offering an authentic experience of the subtropical winter season.
Weather in January
Duluth, Georgia enters the year with moderate weather conditions. This month comes with a slight wintry chill as temperatures steadily drop from December. With 0.98" (25mm) of snowfall over 1.4 days, January is one of the few months where locals can expect a brief snow blanket. Weather in January »Weather in February
Similar to January, February continues to showcase wintery conditions. Gradually, the chill begins to wane as winter starts to transition into spring. The most significant shift occurs in the form of increased rainfall, with 3.78" (96mm) spread across 14.7 days. Weather in February »Weather in March
Entering into spring, Duluth, Georgia sees a noticeable transformation in weather. Though the temperatures increase from February, the city remains relatively cool. In contrast to its preceding month, March’s unique trait is its marginal snowfall of 0.16" (4mm). Weather in March »Weather in April
Weather in Duluth, Georgia takes a warm turn in April. The residual coolness from March fades as temperatures begin to rise, heralding the arrival of a proper spring season. Highlighting its transformation, April sees absolutely no snowfall, thus marking the end of winter. Weather in April »Weather in May
In May, Duluth, Georgia fully embraces the warmth of spring. With an upward shift from April, the climate turns noticeably hotter. Distinctively, May receives the highest rainfall with 4.45" (113mm) distributed over 18.2 days. June sustains this rise in temperature, edging Duluth closer to its summer peak. Weather in May »Weather in June
June paves the way for summer in Duluth, Georgia with a significant jump in average temperatures. The city experiences longer, warmer days compared to May. However, it's noted that the rainfall inches reduce to 3.74 over 18.5 days. As July approaches, the city readies itself for peak summer conditions. Weather in June »Weather in July
July, the zenith of summer, brings the hottest weather to Duluth, Georgia. As the transition from June reaches its pinnacle, temperatures scale new heights. Reaching a peak, July experiences the highest temperature of 90.7°F (32.6°C). Weather in July »Weather in August
August in Duluth, Georgia, is a continuation of the scorching summer weather from July. Although temperatures taper off slightly from the previous month, the city maintains its summer intensity. Most notably, August records the maximum amount of 5.43" (138mm) of rainfall. Weather in August »Weather in September
September brings about a refreshing change to Duluth, Georgia, as it transitions from summer to fall. With lower temperatures than August, the city begins to cool down. To set it apart, September attributes its recognition to a significant drop in rainfall to 2.72" (69mm). Weather in September »Weather in October
October in Duluth, Georgia, represents a season of change. The city witnesses a transformation in its weather pattern as both temperatures and rainfall decrease from September. Of particular interest is a notable drop in both daylight hours and sunshine duration. Weather in October »Weather in November
The fall season in Duluth, Georgia gradually ebbs away in November. As temperatures continue to cool from October levels, the city sways into winter. Curiously, November reintroduces snowfall, albeit just 0.04" (1mm) throughout the month. Weather in November »Weather in December
Finally, December marks the arrival of winter in Duluth, Georgia. The city is at its coldest phase, with temperatures dipping noticeably from November. As a testament to its winter pull, December records 0.24" (6mm) of snowfall, preparing the town for January’s snowy possibilities. 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
January is the month that records the lowest temperatures in Duluth, Georgia, with averages ranging from a high of 49.5°F (9.7°C) to a low of 34°F (1.1°C).
In Duluth, during the entire year, the rain falls for 181.5 days and collects up to 44.57" (1132mm) of precipitation.
January through March, November and December are months with snowfall in Duluth, Georgia.
The months with the most snowfall in Duluth, Georgia, are January and February, with an average 0.98" (25mm) of accumulated snow.
In Duluth, during the entire year, snow falls for 3.9 days and aggregates up to 2.4" (61mm) of snow.
The months with the lowest UV index in Duluth, Georgia, are January and December, with an average maximum UV index of 2.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Duluth, 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 October are months without snowfall.
May through August, with an average maximum UV index of 6, are months with the highest UV index in Duluth.
June has the longest days of the year in Duluth, with an average of 14h and 24min of daylight.
June and July, with an average of 10.4h of sunshine, are months with the most sunshine.
July, known for its average high temperature of 90.7°F (32.6°C) and an average low temperature of 71.1°F (21.7°C), is the warmest month.
July is the least humid month in Duluth, with an average relative humidity of 68%.
The month with the most rainfall is August, when the rain falls for 19.3 days and typically aggregates up to 5.43" (138mm) of precipitation.
October is the month with the least rainfall. Rain falls for 10.5 days and accumulates 2.32" (59mm) of precipitation.
The most humid month is December, with an average relative humidity of 77%.
The month with the shortest days in Duluth, Georgia, is December, with an average of 9h and 54min of daylight.
With an average of 5h of sunshine, December has the least sunshine of the year in Duluth.
Average temperature
Duluth, GA
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (49.5°F).
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (34°F).
Average pressure
Duluth, 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:
30.01"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
Duluth, GA
- Average wind speed in January:
8mph - Average wind speed in February:
7.8mph - 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:
5.2mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.6mph - Average wind speed in September:
5mph - Average wind speed in October:
6.1mph - Average wind speed in November:
6.6mph - Average wind speed in December:
7.4mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity
Duluth, GA
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (68%).
Average rainfall
Duluth, GA
- Average rainfall in January:
3.11" - Average rainfall in February:
3.78" - Average rainfall in March:
3.39" - Average rainfall in April:
3.74" - Average rainfall in May:
4.45" - Average rainfall in June:
3.74"
- Average rainfall in July:
4.69" - Average rainfall in August:
5.43" - Average rainfall in September:
2.72" - Average rainfall in October:
2.32" - Average rainfall in November:
3.23" - Average rainfall in December:
3.98"
The wettest month (with the highest rainfall) is August (5.43").
The driest month (with the least rainfall) is October (2.32").
Average rainfall days
Duluth, GA
- Average rainfall days in January:
12.1 days - Average rainfall days in February:
14.7 days - Average rainfall days in March:
15.6 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
18.2 days - Average rainfall days in June:
18.5 days
- Average rainfall days in July:
21 days - Average rainfall days in August:
19.3 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
10.4 days - Average rainfall days in December:
13.5 days
The month with the highest number of rainy days is July (21 days).
The month with the least rainy days is November (10.4 days).
Average snowfall
Duluth, GA
The months with the highest snowfall are January and February (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Duluth, GA
- Average snowfall days in January:
1.4 days - Average snowfall days in February:
1.3 days - Average snowfall days in March:
0.3 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:
0.2 days - Average snowfall days in December:
0.6 days
The month with the highest number of snowfall days is January (1.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Duluth, 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 12min - 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 30min - Average sunshine in February:
6h and 18min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 24min - Average sunshine in May:
9h and 36min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
9h and 18min - Average sunshine in September:
8h and 24min - Average sunshine in October:
6h and 54min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days
Duluth, GA
- Average sunshine days in January:
16.7 days - Average sunshine days in February:
11.9 days - Average sunshine days in March:
13 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
11.5 days - Average sunshine days in June:
9.1 days
- Average sunshine days in July:
8.3 days - Average sunshine days in August:
9.8 days - Average sunshine days in September:
15.6 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
18.2 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (8.3 days).
Average UV index
Duluth, 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 and December (UV index 2).
Average cloud cover
Duluth, GA
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility
Duluth, 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).
