Climate and monthly weather forecastSuwanee, GA
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Suwanee, Georgia, with an average temperature ranging between max 49.1°F (9.5°C) and min 33.8°F (1°C). January is the coldest month of the year, registering average temperatures as high as 49.1°F (9.5°C) and as low as 33.8°F (1°C). Weather in January »Weather in February
The last month of the winter, February, is a cool month in Suwanee, Georgia, with temperature in the range of an average low of 37.8°F (3.2°C) and an average high of 54°F (12.2°C). The transition into February is marked with an average high-temperature of a fresh 54°F (12.2°C), showing an insignificant shift from January's 49.1°F (9.5°C). Weather in February »Weather in March
The first month of the spring, March, is a comfortable month in Suwanee, Georgia, with an average temperature ranging between min 43.7°F (6.5°C) and max 61.3°F (16.3°C). In March, the meteorological conditions subtly change with the average high-temperature edging from a cool 54°F (12.2°C) in February to a refreshing 61.3°F (16.3°C). Weather in March »Weather in April
April in Suwanee, Georgia, is an agreeable spring month, with an average temperature varying between 71.2°F (21.8°C) and 51.8°F (11°C). April's arrival brings a temperature shift, moving from an enjoyable 61.3°F (16.3°C) in March to an agreeable 71.2°F (21.8°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Suwanee, Georgia, with an average temperature varying between 79.3°F (26.3°C) and 59.7°F (15.4°C). A gentle upsurge in temperatures occurs as April gives way to May, with average highs shifting from a pleasant 71.2°F (21.8°C) to a moderately hot 79.3°F (26.3°C). Weather in May »Weather in June
The first month of the summer, June, is a tropical month in Suwanee, Georgia, with an average temperature fluctuating between 66.7°F (19.3°C) and 86.7°F (30.4°C). June witnesses a subtle temperature ascent, adjusting from a moderately hot 79.3°F (26.3°C) in May to a tropical 86.7°F (30.4°C). Weather in June »Weather in July
July, like June, is another tropical summer month in Suwanee, Georgia, with an average temperature ranging between min 69.6°F (20.9°C) and max 89.6°F (32°C). In Suwanee, temperatures reach their average annual highs in July, measuring 89.6°F (32°C) and a minimum average of 69.6°F (20.9°C). For July, the heat index is estimated at a scorching 105.8°F (41°C). Weather in July »Weather in August
August, the last month of the summer in Suwanee, is another tropical month, with an average temperature ranging between max 88.5°F (31.4°C) and min 69.1°F (20.6°C). Suwanee's weather in August displays an average high-temperature of a still tropical 88.5°F (31.4°C), showing minor disparity from July's 89.6°F (32°C). Weather in August »Weather in September
September, the first month of the autumn in Suwanee, is still a warm month, with an average temperature fluctuating between 64.2°F (17.9°C) and 83.1°F (28.4°C). With the arrival of September, Suwanee notices a mild change in the average high-temperature, sliding from August's tropical 88.5°F (31.4°C) to a warm 83.1°F (28.4°C). Weather in September »Weather in October
October, the same as September, in Suwanee, Georgia, is an agreeable autumn month, with an average temperature fluctuating between 72°F (22.2°C) and 52.5°F (11.4°C). Stepping into October, Suwanee observes a temperature decline, with the average high falling from September's warm 83.1°F (28.4°C) to a pleasant 72°F (22.2°C). Weather in October »Weather in November
November, the last month of the autumn in Suwanee, is also a moderate month, with an average temperature varying between 60.1°F (15.6°C) and 42.6°F (5.9°C). November involves a decrease in temperature, down from an agreeable 72°F (22.2°C) in October to a refreshing 60.1°F (15.6°C). Weather in November »Weather in December
The first month of the winter, December, is still a cool month in Suwanee, Georgia, with an average temperature varying between 52.9°F (11.6°C) and 38.5°F (3.6°C). The start of December signals a gentle decrease in the average high-temperature, transitioning from a mild 60.1°F (15.6°C) in November to a fresh 52.9°F (11.6°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Suwanee, GA
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (49.1°F).
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (33.8°F).
Average pressure
Suwanee, 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
Suwanee, GA
- Average wind speed in January:
7.8mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.2mph - Average wind speed in April:
7mph - Average wind speed in May:
5.7mph - Average wind speed in June:
5mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.4mph - Average wind speed in September:
4.9mph - Average wind speed in October:
6mph - Average wind speed in November:
6.3mph - Average wind speed in December:
7.2mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity
Suwanee, GA
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are July, August and September (71%).
Average rainfall
Suwanee, GA
- Average rainfall in January:
3.31" - Average rainfall in February:
3.9" - Average rainfall in March:
3.43" - Average rainfall in April:
3.78" - Average rainfall in May:
4.29" - Average rainfall in June:
3.54"
- Average rainfall in July:
4.06" - Average rainfall in August:
4.49" - Average rainfall in September:
2.6" - Average rainfall in October:
2.28" - Average rainfall in November:
3.27" - Average rainfall in December:
4.17"
The wettest month (with the highest rainfall) is August (4.49").
The driest month (with the least rainfall) is October (2.28").
Average rainfall days
Suwanee, GA
- Average rainfall days in January:
12.6 days - Average rainfall days in February:
14.3 days - Average rainfall days in March:
15.9 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
18.4 days
- Average rainfall days in July:
20.1 days - Average rainfall days in August:
19 days - Average rainfall days in September:
13.2 days - Average rainfall days in October:
10 days - Average rainfall days in November:
10.3 days - Average rainfall days in December:
13.5 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is October (10 days).
Average snowfall
Suwanee, GA
The month with the highest snowfall is February (1.14").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Suwanee, GA
- Average snowfall days in January:
1.5 days - Average snowfall days in February:
1.7 days - Average snowfall days in March:
0.2 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:
0.7 days
The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Suwanee, 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 36min - Average sunshine in February:
6h and 24min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 24min - Average sunshine in May:
9h and 30min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
9h and 24min - Average sunshine in September:
8h and 30min - 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 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days
Suwanee, GA
- Average sunshine days in January:
16 days - Average sunshine days in February:
11.7 days - Average sunshine days in March:
12.8 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
9.8 days
- Average sunshine days in July:
8.9 days - Average sunshine days in August:
10.6 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
18.3 days - Average sunshine days in December:
15.4 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (8.9 days).
Average UV index
Suwanee, 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
Suwanee, GA
The months with the most cloud cover are February and December (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility
Suwanee, 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).





