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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 3.3–16.7°C, 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 21.0–22.0°C, 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 11.4–18.2°C, 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–-0.9°C, 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. 10°C / Annual rainfall: approx. 1147 mm / Summer humidity: 65%–75% / Rainiest month: July
DeKalb County monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
-5.4°C
51.5
February
-1.2°C
61.3
March
3.3°C
108.2
April
9°C
128.2
May
16.7°C
106.7
June
21.4°C
95
July
22°C
160.6
August
21°C
140.8
September
18.2°C
118.9
October
11.4°C
62.9
November
4.4°C
53.4
December
-0.9°C
60.3
DeKalb County weather for the next seven days
12/14
Sunday
Partly Cloudy
-9.4°C/-23.3°C
12/15
Monday
Overcast
-4.9°C/-15°C
12/16
Tuesday
Mist
0.9°C/-10.4°C
12/17
Wednesday
Cloudy
1.1°C/-2°C
12/18
Thursday
Moderate rain
8.5°C/-5.7°C
12/19
Friday
Light freezing rain
-3°C/-8.9°C
12/20
Saturday
Light freezing rain
2.7°C/-4.4°C
