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Lancaster County

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Lancaster County Weather and climate

Data source:Meteostat
Update date:2025-09

Lancaster County year round climate
  • Spring (March–May): 7.4–17.9°C on average, mild climate, but occasional showers. Temperatures gradually rise from March to April. Common activities: Outdoor walks, farm visits, flower viewing. Suggested clothing: Light jacket, long-sleeved shirts, comfortable shoes.
  • Summer (June–August): 22.4–25.6°C on average, hot and humid, with occasional thunderstorms. Common activities: Swimming, camping, farm picking. Suggested clothing: Breathable short-sleeved clothing, shorts, sun hat.
  • Autumn (September–November): 8.1–19.8°C on average, pleasant climate, but more rainfall, especially in September. Common activities: Maple leaf viewing, pumpkin harvesting, outdoor picnics. Suggested clothing: Comfortable long-sleeved shirts, light jacket, comfortable shoes.
  • Winter (December–February): 1.6–3.8°C on average, cold, little snowfall, but possible icy conditions. Common activities: Indoor visits, museums, enjoying hot drinks. Suggested clothing: Warm coat, hat, scarf, gloves.
Lancaster County climatological average

Annual average temperature: approx. 13°C / Annual rainfall: approx. 1380 mm / Summer humidity: 65%–75% / Rainiest month: September

Lancaster County monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
1.6°C
117
February
3.8°C
56.1
March
7.4°C
111.9
April
12.7°C
140.5
May
17.9°C
88.5
June
22.4°C
131.9
July
25.6°C
134.5
August
24°C
102.2
September
19.8°C
175.5
October
13.5°C
85.1
November
8.1°C
72.1
December
3.1°C
164.7
Lancaster County weather for the next seven days
10/18
Saturday
Sunny
25.4°C/6.2°C
10/19
Sunday
Patchy rain nearby
23.1°C/8.6°C
10/20
Monday
Heavy rain
14.5°C/9.9°C
10/21
Tuesday
Patchy rain nearby
20.4°C/5.1°C
10/22
Wednesday
Patchy rain nearby
15.5°C/6.6°C
10/23
Thursday
Partly Cloudy
13.5°C/4.2°C
10/24
Friday
Sunny
14.6°C/4°C