Spring (March–May): Average 46–63°F, mild climate, but with more rainfall and occasional overcast days. Common activities: Outdoor walks, visiting museums. Recommended clothing: Light jacket, comfortable long-sleeved shirts and pants.
Summer (June–August): Average 72–77°F, warm and humid, occasional showers. Common activities: Swimming, picnics, outdoor sports. Recommended clothing: Short-sleeved shirts and pants, breathable clothing.
Autumn (September–November): Average 56–67°F, pleasant climate, rainfall gradually decreases, more sunny days. Common activities: Viewing autumn leaves (some species), hiking. Recommended clothing: Light jacket, long-sleeved shirts and pants.
Winter (January–February): Average 36–40°F, cold, more rainfall. Common activities: Indoor activities, visiting museums. Recommended clothing: Warm jacket, hat, scarf, gloves.
Rockville climatological average
Annual average temperature: approx. 56.5°F / Annual rainfall: approx. 979 mm / Summer humidity: 60%–70% / Rainiest month: January
Rockville monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
36.1°F
111.6
February
40.8°F
65.1
March
46.6°F
98.9
April
56.5°F
95.5
May
63.5°F
75.9
June
72.1°F
60.4
July
77.5°F
93.5
August
75.2°F
79.2
September
67.1°F
93.2
October
56.3°F
34.9
November
47.3°F
71.5
December
37.8°F
100
Rockville weather for the next seven days
1/26
Monday
Partly Cloudy
25.7°F/10°F
1/27
Tuesday
Sunny
28.9°F/2.1°F
1/28
Wednesday
Partly Cloudy
22.3°F/7.5°F
1/29
Thursday
Partly Cloudy
24.3°F/5.1°F
1/30
Friday
Sunny
15.8°F/3.6°F
1/31
Saturday
Partly Cloudy
16.7°F/0.9°F
2/1
Sunday
Overcast
21.1°F/11.3°F
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