Gaithersburg Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Gaithersburg year round climate
Spring (March–May): Average 8.2–17.5°C, mild climate, but may experience fluctuating temperatures, moderate rainfall. Common activities: Outdoor walks, flower viewing. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Summer (June–August): Average 22.3–25.3°C, warm and humid, occasional thunderstorms. Common activities: Swimming, picnics, outdoor BBQs. Recommended clothing: Light and breathable clothing, sun hat, sunglasses.
Autumn (September–November): Average 8.5–19.5°C, pleasant climate, cool and comfortable, rainfall gradually decreases. Common activities: Maple leaf viewing, hiking. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Winter (December–February): Average 2.3–5.0°C, cold and humid, occasional snowfall. Common activities: Indoor activities, skiing (requires travel to higher altitudes). Recommended clothing: Warm coat, hat, scarf, gloves.
Gaithersburg climatological average
Annual average temperature: approx. 13.6°C / Annual rainfall: approx. 981 mm / Summer humidity: 60%–75% / Rainiest month: January
Gaithersburg monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
2.3°C
109.3
February
5°C
62.1
March
8.2°C
85.4
April
13.6°C
80
May
17.5°C
95.8
June
22.3°C
60.4
July
25.3°C
93.5
August
24.2°C
83.8
September
19.5°C
101.2
October
13.5°C
34.9
November
8.5°C
71.5
December
3.2°C
104
Gaithersburg weather for the next seven days
3/16
Monday
Heavy rain
22.8°C/0.5°C
3/17
Tuesday
Moderate or heavy snow showers
2.5°C/-3.1°C
3/18
Wednesday
Overcast
2.2°C/-3.9°C
3/19
Thursday
Overcast
9.8°C/0.2°C
3/20
Friday
Partly Cloudy
15.4°C/4.1°C
3/21
Saturday
Cloudy
17.6°C/8.8°C
3/22
Sunday
Partly Cloudy
21.9°C/13.2°C
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