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DeKalb County
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DeKalb County Weather, Climate and Best Time to Visit
Data source：Meteostat
Update date：2025-09
DeKalb County year round climate
- Spring (March–May): Average 37–62°F, mild climate, but early spring can be cold, more rainfall, especially in April. Common activities: Outdoor walks (be mindful of weather changes), flower viewing (if suitable flowers are available locally). Recommended clothing: Layered clothing, jacket, thermal underwear, long-sleeved shirts.
- Summer (June–August): Average 69–71°F, warm and humid, most rainfall in July. Common activities: Outdoor activities (be mindful of sun protection and rain), swimming (if suitable facilities are available locally). Recommended clothing: Light and breathable clothing, rain gear.
- Autumn (September–November): Average 52–64°F, pleasant climate, rainfall gradually decreases. Common activities: Hiking, autumn leaf viewing (if suitable tree species are available locally). Recommended clothing: Comfortable long-sleeved shirts, jacket.
- Winter (December–February): Average -5.4–-33.6°F, cold and dry, low probability of snowfall, but low temperatures. Common activities: Indoor activities, skiing (if there are ski resorts nearby). Recommended clothing: Warm clothing, thick jacket, hat, gloves, scarf.
DeKalb County climatological average
Annual average temperature: approx. 50.0°F / Annual rainfall: approx. 1147 mm / Summer humidity: 65%–75% / Rainiest month: July
DeKalb County monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
22.3°F
51.5
February
29.8°F
61.3
March
37.9°F
108.2
April
48.2°F
128.2
May
62.1°F
106.7
June
70.5°F
95
July
71.6°F
160.6
August
69.8°F
140.8
September
64.8°F
118.9
October
52.5°F
62.9
November
39.9°F
53.4
December
30.4°F
60.3
DeKalb County weather for the next seven days
1/28
Wednesday
Sunny
21°F/0.1°F
1/29
Thursday
Partly Cloudy
14.5°F/0°F
1/30
Friday
Cloudy
16.7°F/1.8°F
1/31
Saturday
Sunny
27.3°F/6.8°F
2/1
Sunday
Cloudy
25.5°F/9.1°F
2/2
Monday
Partly Cloudy
33.7°F/18.1°F
2/3
Tuesday
Heavy snow
27.4°F/19.4°F
